From 71a0be6fff8f2871742f269b743833e0d11f9f29 Mon Sep 17 00:00:00 2001 From: Emmanuele Bassi Date: Thu, 30 Oct 2008 16:37:55 +0000 Subject: [PATCH] 2008-10-30 Emmanuele Bassi Bug 1209 - Move fixed point API in COGL * clutter/cogl/cogl-fixed.h: * clutter/cogl/cogl.h.in: * clutter/cogl/common/Makefile.am: * clutter/cogl/common/cogl-fixed.c: Add fixed point API, modelled after the ClutterFixed. The CoglFixed API supercedes the ClutterFixed one and avoids the dependency of COGL on Clutter's own API. * clutter/cogl/common/cogl-clip-stack.c: * clutter/cogl/common/cogl-primitives.c: * clutter/cogl/common/cogl-primitives.h: Update internal usage of ClutterFixed to CoglFixed. * clutter/cogl/gl/Makefile.am: * clutter/cogl/gl/cogl-primitives.c: * clutter/cogl/gl/cogl-texture.c: * clutter/cogl/gl/cogl.c: Ditto, in the GL implementation of the COGL API. * clutter/cogl/gles/Makefile.am: * clutter/cogl/gles/cogl-fbo.c: * clutter/cogl/gles/cogl-gles2-wrapper.c: * clutter/cogl/gles/cogl-primitives.c: * clutter/cogl/gles/cogl-texture.c: * clutter/cogl/gles/cogl.c: Ditto, in the GLES implementation of the COGL API. * clutter/pango/pangoclutter-glyph-cache.c: * clutter/pango/pangoclutter-glyph-cache.h: Ditto, in the Pango renderer glyphs cache. * clutter/clutter-fixed.c: * clutter/clutter-fixed.h: ClutterFixed and related API becomes a simple transition API for bindings and public Clutter API. * clutter/clutter-actor.c: * clutter/clutter-alpha.c: * clutter/clutter-backend.c: * clutter/clutter-behaviour-depth.c: * clutter/clutter-behaviour-ellipse.c: * clutter/clutter-behaviour-path.c: * clutter/clutter-behaviour-rotate.c: * clutter/clutter-behaviour-scale.c: * clutter/clutter-clone-texture.c: * clutter/clutter-color.c: * clutter/clutter-entry.c: * clutter/clutter-stage.c: * clutter/clutter-texture.c: * clutter/clutter-timeline.c: * clutter/clutter-units.h: Move from the internal usage of ClutterFixed to CoglFixed. * doc/reference/clutter/clutter-sections.txt: * doc/reference/cogl/cogl-docs.sgml: * doc/reference/cogl/cogl-sections.txt: Update the documentation. * tests/test-cogl-tex-tile.c: * tests/test-project.c: Fix tests after the API change * README: Add release notes. --- cogl-fixed.h | 753 ++++++++++++++++++++++ cogl.h.in | 194 +++--- common/Makefile.am | 3 +- common/cogl-clip-stack.c | 36 +- common/cogl-fixed.c | 911 +++++++++++++++++++++++++++ common/cogl-primitives.c | 240 +++---- common/cogl-primitives.h | 4 +- doc/reference/cogl/cogl-docs.sgml | 1 + doc/reference/cogl/cogl-sections.txt | 85 +++ gl/Makefile.am | 9 +- gl/cogl-primitives.c | 32 +- gl/cogl-texture.c | 230 +++---- gl/cogl.c | 299 ++++----- gles/Makefile.am | 7 +- gles/cogl-fbo.c | 12 +- gles/cogl-gles2-wrapper.c | 90 +-- gles/cogl-primitives.c | 36 +- gles/cogl-texture.c | 206 +++--- gles/cogl.c | 237 +++---- 19 files changed, 2586 insertions(+), 799 deletions(-) create mode 100644 cogl-fixed.h create mode 100644 common/cogl-fixed.c diff --git a/cogl-fixed.h b/cogl-fixed.h new file mode 100644 index 000000000..b1542bcc3 --- /dev/null +++ b/cogl-fixed.h @@ -0,0 +1,753 @@ +#ifndef __COGL_FIXED_H__ +#define __COGL_FIXED_H__ + +#include + +/** + * SECTION:cogl-fixed + * @short_description: Fixed Point API + * + * COGL has a fixed point API targeted at platforms without a floating + * point unit, such as embedded devices. On such platforms this API should + * be preferred to the floating point one as it does not trigger the slow + * path of software emulation, relying on integer math for fixed-to-floating + * and floating-to-fixed notations conversion. + * + * It is not recommened for use on platforms with a floating point unit + * (e.g. desktop systems), nor for use in language bindings. + * + * Basic rules of Fixed Point arithmethic: + * + * + * Two fixed point numbers can be directly added, subtracted and + * have their modulus taken. + * + * + * To add other numerical type to a fixed point number it has to + * be first converted to fixed point. + * + * + * A fixed point number can be directly multiplied or divided by + * an integer. + * + * + * Two fixed point numbers can only be multiplied and divided by + * the provided %COGL_FIXED_MUL and %COGL_FIXED_DIV macros. + * + * + * + * The fixed point API is available since COGL 1.0. + */ + +G_BEGIN_DECLS + +/** + * CoglFixed: + * + * Fixed point number using a (16.16) notation. + */ +typedef gint32 CoglFixed; + +/* + * some commonly used constants + */ + +/** + * COGL_FIXED_BITS: + * + * Evaluates to the number of bits used by the #CoglFixed type. + * + * Since: 1.0 + */ +#define COGL_FIXED_BITS (32) + +/** + * COGL_FIXED_Q: + * + * Evaluates to the number of bits used for the non-integer part + * of the #CoglFixed type. + * + * Since: 1.0 + */ +#define COGL_FIXED_Q (COGL_FIXED_BITS - 16) + +/** + * COGL_FIXED_1: + * + * The number 1 expressed as a #CoglFixed number. + * + * Since: 1.0 + */ +#define COGL_FIXED_1 (1 << COGL_FIXED_Q) + +/** + * COGL_FIXED_0_5: + * + * The number 0.5 expressed as a #CoglFixed number. + * + * Since: 1.0 + */ +#define COGL_FIXED_0_5 (32768) + +/** + * COGL_FIXED_EPSILON: + * + * A very small number expressed as a #CoglFixed number. + * + * Since: 1.0 + */ +#define COGL_FIXED_EPSILON (1) + +/** + * COGL_FIXED_MAX: + * + * The biggest number representable using #CoglFixed + * + * Since: 1.0 + */ +#define COGL_FIXED_MAX (0x7fffffff) + +/** + * COGL_FIXED_MIN: + * + * The smallest number representable using #CoglFixed + * + * Since: 1.0 + */ +#define COGL_FIXED_MIN (0x80000000) + +/** + * COGL_FIXED_PI: + * + * The number pi, expressed as a #CoglFixed number. + * + * Since: 1.0 + */ +#define COGL_FIXED_PI (0x0003243f) + +/** + * COGL_FIXED_2_PI: + * + * Two times pi, expressed as a #CoglFixed number. + * + * Since: 1.0 + */ +#define COGL_FIXED_2_PI (0x0006487f) + +/** + * COGL_FIXED_PI_2: + * + * Half pi, expressed as a #CoglFixed number. + * + * Since: 1.0 + */ +#define COGL_FIXED_PI_2 (0x00019220) + +/** + * COGL_FIXED_PI_4: + * + * pi / 4, expressed as #CoglFixed number. + * + * Since: 1.0 + */ +#define COGL_FIXED_PI_4 (0x0000c910) + +/** + * COGL_FIXED_360: + * + * Evaluates to the number 360 in fixed point notation. + * + * Since: 1.0 + */ +#define COGL_FIXED_360 (COGL_FIXED_FROM_INT (360)) + +/** + * COGL_FIXED_270: + * + * Evaluates to the number 270 in fixed point notation. + * + * Since: 1.0 + */ +#define COGL_FIXED_270 (COGL_FIXED_FROM_INT (270)) + +/** + * COGL_FIXED_255: + * + * Evaluates to the number 255 in fixed point notation. + * + * Since: 1.0 + */ +#define COGL_FIXED_255 (COGL_FIXED_FROM_INT (255)) + +/** + * COGL_FIXED_240: + * + * Evaluates to the number 240 in fixed point notation. + * + * Since: 1.0 + */ +#define COGL_FIXED_240 (COGL_FIXED_FROM_INT (240)) + +/** + * COGL_FIXED_180: + * + * Evaluates to the number 180 in fixed point notation. + * + * Since: 1.0 + */ +#define COGL_FIXED_180 (COGL_FIXED_FROM_INT (180)) + +/** + * COGL_FIXED_120: + * + * Evaluates to the number 120 in fixed point notation. + * + * Since: 1.0 + */ +#define COGL_FIXED_120 (COGL_FIXED_FROM_INT (120)) + +/** + * COGL_FIXED_90: + * + * Evaluates to the number 90 in fixed point notation. + * + * Since: 1.0 + */ +#define COGL_FIXED_90 (COGL_FIXED_FROM_INT (90)) + +/** + * COGL_FIXED_60: + * + * Evaluates to the number 60 in fixed point notation. + * + * Since: 1.0 + */ +#define COGL_FIXED_60 (COGL_FIXED_FROM_INT (60)) + +/** + * COGL_FIXED_45: + * + * Evaluates to the number 45 in fixed point notation. + * + * Since: 1.0 + */ +#define COGL_FIXED_45 (COGL_FIXED_FROM_INT (45)) + +/** + * COGL_FIXED_30: + * + * Evaluates to the number 30 in fixed point notation. + * + * Since: 1.0 + */ +#define COGL_FIXED_30 (COGL_FIXED_FROM_INT (30)) + +/** + * COGL_RADIANS_TO_DEGREES: + * + * Evaluates to 180 / pi in fixed point notation. + * + * Since: 1.0 + */ +#define COGL_RADIANS_TO_DEGREES (0x394bb8) + +/* + * conversion macros + */ + +/** + * COGL_FIXED_FROM_FLOAT: + * @x: a floating point number + * + * Converts @x from a floating point to a fixed point notation. + * + * Since: 1.0 + */ +#define COGL_FIXED_FROM_FLOAT(x) (cogl_double_to_fixed (x)) + +/** + * COGL_FIXED_TO_FLOAT: + * @x: a #CoglFixed number + * + * Converts @x from a fixed point to a floating point notation, in + * single precision. + * + * Since: 1.0 + */ +#define COGL_FIXED_TO_FLOAT(x) ((float) ((int)(x) / 65536.0)) + +/** + * COGL_FIXED_TO_FLOAT: + * @x: a #CoglFixed number + * + * Converts @x from a fixed point to a floatint point notation, in + * double precision. + * + * Since: 1.0 + */ +#define COGL_FIXED_TO_DOUBLE(x) ((double) ((int)(x) / 65536.0)) + +/** + * COGL_FIXED_FROM_INT: + * @x: an integer number + * + * Converts @x from an integer to a fixed point notation. + * + * Since: 1.0 + */ +#define COGL_FIXED_FROM_INT(x) ((x) << COGL_FIXED_Q) + +/** + * COGL_FIXED_TO_INT: + * @x: a #CoglFixed number + * + * Converts @x from a fixed point notation to an integer, dropping + * the fractional part without rounding. + * + * Since: 1.0 + */ +#define COGL_FIXED_TO_INT(x) ((x) >> COGL_FIXED_Q) + +/** + * COGL_FLOAT_TO_INT: + * @x: a floatint point number + * + * Converts @x from a floating point notation to a signed integer. + * + * Since: 1.0 + */ +#define COGL_FLOAT_TO_INT(x) (cogl_double_to_int ((x))) + +/** + * COGL_FLOAT_TO_UINT: + * @x: a floatint point number + * + * Converts @x from a floating point notation to an unsigned integer. + * + * Since: 1.0 + */ +#define COGL_FLOAT_TO_UINT(x) (cogl_double_to_uint ((x))) + +/* + * fixed point math functions + */ + +/** + * COGL_FIXED_FRACTION: + * @x: a #CoglFixed number + * + * Retrieves the fractionary part of @x. + * + * Since: 1.0 + */ +#define COGL_FIXED_FRACTION(x) ((x) & ((1 << COGL_FIXED_Q) - 1)) + +/** + * COGL_FIXED_FLOOR: + * @x: a #CoglFixed number + * + * Rounds down a fixed point number to the previous integer. + * + * Since: 1.0 + */ +#define COGL_FIXED_FLOOR(x) (((x) >= 0) ? ((x) >> COGL_FIXED_Q) \ + : ~((~(x)) >> COGL_FIXED_Q)) + +/** + * COGL_FIXED_CEIL: + * @x: a #CoglFixed number + * + * Rounds up a fixed point number to the next integer. + * + * Since: 1.0 + */ +#define COGL_FIXED_CEIL(x) (COGL_FIXED_FLOOR ((x) + 0xffff)) + +/** + * COGL_FIXED_MUL: + * @a: a #CoglFixed number + * @b: a #CoglFixed number + * + * Computes (a * b). + * + * Since: 1.0 + */ +#define COGL_FIXED_MUL(a,b) (cogl_fixed_mul ((a), (b))) + +/** + * COGL_FIXED_DIV: + * @a: a #CoglFixed number + * @b: a #CoglFixed number + * + * Computes (a / b). + * + * Since: 1.0 + */ +#define COGL_FIXED_DIV(a,b) (cogl_fixed_div ((a), (b))) + +/** + * COGL_FIXED_MUL_DIV: + * @a: a #CoglFixed number + * @b: a #CoglFixed number + * @c: a #CoglFixed number + * + * Computes ((a * b) / c). It is logically equivalent to: + * + * |[ + * res = COGL_FIXED_DIV (COGL_FIXED_MUL (a, b), c); + * ]| + * + * But it is shorter to type. + * + * Since: 1.0 + */ +#define COGL_FIXED_MUL_DIV(a,b,c) (cogl_fixed_mul_div ((a), (b), (c))) + +/** + * COGL_FIXED_FAST_MUL: + * @a: a #CoglFixed number + * @b: a #CoglFixed number + * + * Fast version of %COGL_FIXED_MUL, implemented as a macro. + * + * This macro might lose precision. If the precision of the result + * is important use %COGL_FIXED_MUL instead. + * + * Since: 1.0 + */ +#define COGL_FIXED_FAST_MUL(a,b) ((a) >> 8) * ((b) >> 8) + +/** + * COGL_FIXED_FAST_DIV: + * @a: a #CoglFixed number + * @b: a #CoglFixed number + * + * Fast version of %COGL_FIXED_DIV, implemented as a macro. + * + * This macro might lose precision. If the precision of the result + * is important use %COGL_FIXED_DIV instead. + * + * Since: 1.0 + */ +#define COGL_FIXED_FAST_DIV(a,b) ((((a) << 8) / (b)) << 8) + +/** + * cogl_fixed_sin: + * @angle: a #CoglFixed number + * + * Computes the sine of @angle. + * + * Return value: the sine of the passed angle, in fixed point notation + * + * Since: 1.0 + */ +CoglFixed cogl_fixed_sin (CoglFixed angle); + +/** + * cogl_fixed_cos: + * @angle: a #CoglFixed number + * + * Computes the cosine of @angle. + * + * Return value: the cosine of the passed angle, in fixed point notation + * + * Since: 1.0 + */ +CoglFixed cogl_fixed_cos (CoglFixed angle); + +/** + * cogl_fixed_atani: + * @a: a #CoglFixed number + * + * Computes the arc tangent of @a. + * + * Return value: the arc tangent of the passed value, in fixed point notation + * + * Since: 1.0 + */ +CoglFixed cogl_fixed_atani (CoglFixed a); + +/** + * cogl_fixed_atan2: + * @a: the numerator as a #CoglFixed number + * @b: the denominator as a #CoglFixed number + * + * Computes the arc tangent of @a / @b but uses the sign of both + * arguments to return the angle in right quadrant. + * + * Return value: the arc tangent of the passed fraction, in fixed point + * notation + * + * Since: 1.0 + */ +CoglFixed cogl_fixed_atan2 (CoglFixed a, + CoglFixed b); + +/*< public >*/ + +/* Fixed point math routines */ +G_INLINE_FUNC CoglFixed cogl_fixed_mul (CoglFixed a, + CoglFixed b); +G_INLINE_FUNC CoglFixed cogl_fixed_div (CoglFixed a, + CoglFixed b); +G_INLINE_FUNC CoglFixed cogl_fixed_mul_div (CoglFixed a, + CoglFixed b, + CoglFixed c); + +/** + * COGL_SQRTI_ARG_MAX: + * + * Maximum argument that can be passed to cogl_sqrti() function. + * + * Since: 1.0 + */ +#ifndef __SSE2__ +#define COGL_SQRTI_ARG_MAX 0x3fffff +#else +#define COGL_SQRTI_ARG_MAX INT_MAX +#endif + +/** + * COGL_SQRTI_ARG_5_PERCENT: + * + * Maximum argument that can be passed to cogl_sqrti() for which the + * resulting error is < 5% + * + * Since: 1.0 + */ +#ifndef __SSE2__ +#define COGL_SQRTI_ARG_5_PERCENT 210 +#else +#define COGL_SQRTI_ARG_5_PERCENT INT_MAX +#endif + +/** + * COGL_SQRTI_ARG_10_PERCENT: + * + * Maximum argument that can be passed to cogl_sqrti() for which the + * resulting error is < 10% + * + * Since: 1.0 + */ +#ifndef __SSE2__ +#define COGL_SQRTI_ARG_10_PERCENT 5590 +#else +#define COGL_SQRTI_ARG_10_PERCENT INT_MAX +#endif + +/** + * cogl_fixed_sqrt: + * @x: a #CoglFixed number + * + * Computes the square root of @x. + * + * Return value: the square root of the passed value, in floating point + * notation + * + * Since: 1.0 + */ +CoglFixed cogl_fixed_sqrt (CoglFixed x); + +/** + * cogl_fixed_log2: + * @x: value to calculate base 2 logarithm from + * + * Calculates base 2 logarithm. + * + * This function is some 2.5 times faster on x86, and over 12 times faster on + * fpu-less arm, than using libc log(). + * + * Return value: base 2 logarithm. + * + * Since: 1.0 + */ +CoglFixed cogl_fixed_log2 (guint x); + +/** + * cogl_fixed_pow2: + * @x: a #CoglFixed number + * + * Calculates 2 to the @x power. + * + * This function is around 11 times faster on x86, and around 22 times faster + * on fpu-less arm than libc pow(2, x). + * + * Return value: the power of 2 to the passed value + * + * Since: 1.0 + */ +guint cogl_fixed_pow2 (CoglFixed x); + +/** + * cogl_fixed_pow: + * @x: base + * @y: #CoglFixed exponent + * + * Calculates @x to the @y power. + * + * Return value: the power of @x to the @y + * + * Since: 1.0 + */ +guint cogl_fixed_pow (guint x, + CoglFixed y); + +/** + * cogl_sqrti: + * @x: integer value + * + * Very fast fixed point implementation of square root for integers. + * + * This function is at least 6x faster than clib sqrt() on x86, and (this is + * not a typo!) about 500x faster on ARM without FPU. It's error is less than + * 5% for arguments smaller than %COGL_SQRTI_ARG_5_PERCENT and less than 10% + * for narguments smaller than %COGL_SQRTI_ARG_10_PERCENT. The maximum + * argument that can be passed to this function is %COGL_SQRTI_ARG_MAX. + * + * Return value: integer square root. + * + * Since: 1.0 + */ +gint cogl_sqrti (gint x); + +/** + * CoglAngle: + * + * Integer representation of an angle such that 1024 corresponds to + * full circle (i.e., 2 * pi). + * + * Since: 1.0 + */ +typedef gint32 CoglAngle; + +/** + * COGL_ANGLE_FROM_DEG: + * @x: an angle in degrees in floating point notation + * + * Converts an angle in degrees into a #CoglAngle. + * + * Since: 1.0 + */ +#define COGL_ANGLE_FROM_DEG(x) (COGL_FLOAT_TO_INT (((float)(x) * 1024.0f) / 360.0f)) + +/** + * COGL_ANGLE_TO_DEG: + * @x: a #CoglAngle + * + * Converts a #CoglAngle into an angle in degrees, using floatint point + * notation. + * + * Since: 1.0 + */ +#define COGL_ANGLE_TO_DEG(x) (((float)(x) * 360.0) / 1024.0) + +/** + * COGL_ANGLE_FROM_DEGX: + * @x: an angle in degrees in fixed point notation + * + * Converts an angle in degrees into a #CoglAngle. + * + * Since: 1.0 + */ +#define COGL_ANGLE_FROM_DEGX(x) (COGL_FIXED_TO_INT ((((x) / 360) * 1024) + COGL_FIXED_0_5)) + +/** + * COGL_ANGLE_TO_DEGX: + * @x: a #CoglAngle + * + * Converts a #CoglAngle into an angle in degrees, using fixed point notation + * + * Since: 1.0 + */ +#define COGL_ANGLE_TO_DEGX(x) (COGL_FIXED_FROM_INT ((x) * 45) / 128) + +/** + * cogl_angle_sin: + * @angle: an angle expressed using #CoglAngle + * + * Computes the sine of @angle + * + * Return value: the sine of the passed angle + * + * Since: 1.0 + */ +CoglFixed cogl_angle_sin (CoglAngle angle); + +/** + * cogl_angle_tan: + * @angle: an angle expressed using #CoglAngle + * + * Computes the tangent of @angle + * + * Return value: the tangent of the passed angle + * + * Since: 1.0 + */ +CoglFixed cogl_angle_tan (CoglAngle angle); + +/** + * cogl_angle_cos: + * @angle: an angle expressed using #CoglAngle + * + * Computes the cosine of @angle + * + * Return value: the cosine of the passed angle + * + * Since: 1.0 + */ +CoglFixed cogl_angle_cos (CoglAngle angle); + +/*< private >*/ + +#if defined (G_CAN_INLINE) +G_INLINE_FUNC CoglFixed +cogl_fixed_mul (CoglFixed a, + CoglFixed b) +{ +# ifdef __arm__ + int res_low, res_hi; + + __asm__ ("smull %0, %1, %2, %3 \n" + "mov %0, %0, lsr %4 \n" + "add %1, %0, %1, lsl %5 \n" + : "=r"(res_hi), "=r"(res_low)\ + : "r"(a), "r"(b), "i"(COGL_FIXED_Q), "i"(32 - COGL_FIXED_Q)); + + return (CoglFixed) res_low; +# else + long long r = (long long) a * (long long) b; + + return (unsigned int)(r >> COGL_FIXED_Q); +# endif +} +#endif + +#if defined (G_CAN_INLINE) +G_INLINE_FUNC CoglFixed +cogl_fixed_div (CoglFixed a, + CoglFixed b) +{ + return (CoglFixed) ((((gint64) a) << COGL_FIXED_Q) / b); +} +#endif + +#if defined(G_CAN_INLINE) +G_INLINE_FUNC CoglFixed +cogl_fixed_mul_div (CoglFixed a, + CoglFixed b, + CoglFixed c) +{ + CoglFixed ab = cogl_fixed_mul (a, b); + CoglFixed quo = cogl_fixed_div (ab, c); + + return quo; +} +#endif + +extern CoglFixed cogl_double_to_fixed (double value); +extern gint cogl_double_to_int (double value); +extern guint cogl_double_to_unit (double value); + +G_END_DECLS + +#endif /* __COGL_FIXED_H__ */ diff --git a/cogl.h.in b/cogl.h.in index ac3aa3411..6f20ab9fd 100644 --- a/cogl.h.in +++ b/cogl.h.in @@ -45,10 +45,10 @@ #include #include #include -#include #include #include +#include G_BEGIN_DECLS @@ -210,8 +210,8 @@ typedef enum */ struct _CoglTextureVertex { - ClutterFixed x, y, z; - ClutterFixed tx, ty; + CoglFixed x, y, z; + CoglFixed tx, ty; ClutterColor color; }; @@ -341,10 +341,10 @@ void cogl_get_bitmasks (gint *red, * Replaces the current projection matrix with a perspective matrix * based on the provided values. */ -void cogl_perspective (ClutterFixed fovy, - ClutterFixed aspect, - ClutterFixed z_near, - ClutterFixed z_far); +void cogl_perspective (CoglFixed fovy, + CoglFixed aspect, + CoglFixed z_near, + CoglFixed z_far); /** * cogl_frustum: @@ -360,12 +360,12 @@ void cogl_perspective (ClutterFixed fovy, * * Since: 0.8.2 */ -void cogl_frustum (ClutterFixed left, - ClutterFixed right, - ClutterFixed bottom, - ClutterFixed top, - ClutterFixed z_near, - ClutterFixed z_far); +void cogl_frustum (CoglFixed left, + CoglFixed right, + CoglFixed bottom, + CoglFixed top, + CoglFixed z_near, + CoglFixed z_far); /** * cogl_setup_viewport: @@ -385,10 +385,10 @@ void cogl_frustum (ClutterFixed left, */ void cogl_setup_viewport (guint width, guint height, - ClutterFixed fovy, - ClutterFixed aspect, - ClutterFixed z_near, - ClutterFixed z_far); + CoglFixed fovy, + CoglFixed aspect, + CoglFixed z_near, + CoglFixed z_far); /** * cogl_viewport: @@ -425,8 +425,8 @@ void cogl_pop_matrix (void); * Multiplies the current model-view matrix by one that scales the x * and y axes by the given values. */ -void cogl_scale (ClutterFixed x, - ClutterFixed y); +void cogl_scale (CoglFixed x, + CoglFixed y); /** * cogl_translatex: @@ -437,9 +437,9 @@ void cogl_scale (ClutterFixed x, * Multiplies the current model-view matrix by one that translates the * model along all three axes according to the given values. */ -void cogl_translatex (ClutterFixed x, - ClutterFixed y, - ClutterFixed z); +void cogl_translatex (CoglFixed x, + CoglFixed y, + CoglFixed z); /** * cogl_translate: @@ -468,7 +468,7 @@ void cogl_translate (gint x, * degrees about the vertex (0, 0, 1) causes a small counter-clockwise * rotation. */ -void cogl_rotatex (ClutterFixed angle, +void cogl_rotatex (CoglFixed angle, gint x, gint y, gint z); @@ -491,32 +491,32 @@ void cogl_rotate (gint angle, /** * cogl_get_modelview_matrix: - * @m: pointer to a 4x4 array of #ClutterFixeds to receive the matrix + * @m: pointer to a 4x4 array of #CoglFixeds to receive the matrix * * Stores the current model-view matrix in @m. The matrix is in * column-major order. */ -void cogl_get_modelview_matrix (ClutterFixed m[16]); +void cogl_get_modelview_matrix (CoglFixed m[16]); /** * cogl_get_projection_matrix: - * @m: pointer to a 4x4 array of #ClutterFixeds to receive the matrix + * @m: pointer to a 4x4 array of #CoglFixeds to receive the matrix * * Stores the current projection matrix in @m. The matrix is in * column-major order. */ -void cogl_get_projection_matrix (ClutterFixed m[16]); +void cogl_get_projection_matrix (CoglFixed m[16]); /** * cogl_get_viewport: - * @v: pointer to a 4 element array of #ClutterFixeds to + * @v: pointer to a 4 element array of #CoglFixeds to * receive the viewport dimensions. * * Stores the current viewport in @v. @v[0] and @v[1] get the x and y * position of the viewport and @v[2] and @v[3] get the width and * height. */ -void cogl_get_viewport (ClutterFixed v[4]); +void cogl_get_viewport (CoglFixed v[4]); /** * cogl_clip_set: @@ -531,10 +531,10 @@ void cogl_get_viewport (ClutterFixed v[4]); * be displayed. The rectangle dimensions are transformed by the * current model-view matrix. */ -void cogl_clip_set (ClutterFixed x_offset, - ClutterFixed y_offset, - ClutterFixed width, - ClutterFixed height); +void cogl_clip_set (CoglFixed x_offset, + CoglFixed y_offset, + CoglFixed width, + CoglFixed height); /** * cogl_clip_unset: @@ -602,7 +602,7 @@ void cogl_enable_backface_culling (gboolean setting); * initial reference value is 1.0. */ void cogl_alpha_func (COGLenum func, - ClutterFixed ref); + CoglFixed ref); /** * cogl_fog_set: @@ -619,9 +619,9 @@ void cogl_alpha_func (COGLenum func, * cogl_paint_init(). */ void cogl_fog_set (const ClutterColor *fog_color, - ClutterFixed density, - ClutterFixed z_near, - ClutterFixed z_far); + CoglFixed density, + CoglFixed z_near, + CoglFixed z_far); /** * cogl_paint_init: @@ -954,14 +954,14 @@ void cogl_texture_unref (CoglHandle handle); * texture pass in @tx1=0.0 @ty1=0.0 @tx2=1.0 @ty2=1.0. */ void cogl_texture_rectangle (CoglHandle handle, - ClutterFixed x1, - ClutterFixed y1, - ClutterFixed x2, - ClutterFixed y2, - ClutterFixed tx1, - ClutterFixed ty1, - ClutterFixed tx2, - ClutterFixed ty2); + CoglFixed x1, + CoglFixed y1, + CoglFixed x2, + CoglFixed y2, + CoglFixed tx1, + CoglFixed ty1, + CoglFixed tx2, + CoglFixed ty2); /** * cogl_texture_polygon: @@ -1051,10 +1051,10 @@ void cogl_rectangle (gint x, * * A fixed-point version of cogl_fast_fill_rectangle. **/ -void cogl_rectanglex (ClutterFixed x, - ClutterFixed y, - ClutterFixed width, - ClutterFixed height); +void cogl_rectanglex (CoglFixed x, + CoglFixed y, + CoglFixed width, + CoglFixed height); /** * cogl_path_fill: @@ -1081,8 +1081,8 @@ void cogl_path_stroke (void); * Clears the previously constructed shape and begins a new path * contour by moving the pen to the given coordinates. **/ -void cogl_path_move_to (ClutterFixed x, - ClutterFixed y); +void cogl_path_move_to (CoglFixed x, + CoglFixed y); /** @@ -1094,8 +1094,8 @@ void cogl_path_move_to (ClutterFixed x, * contour by moving the pen to the given coordinates relative * to the current pen location. **/ -void cogl_path_rel_move_to (ClutterFixed x, - ClutterFixed y); +void cogl_path_rel_move_to (CoglFixed x, + CoglFixed y); /** * cogl_path_line_to: @@ -1105,8 +1105,8 @@ void cogl_path_rel_move_to (ClutterFixed x, * Adds a straight line segment to the current path that ends at the * given coordinates. **/ -void cogl_path_line_to (ClutterFixed x, - ClutterFixed y); +void cogl_path_line_to (CoglFixed x, + CoglFixed y); /** * cogl_path_rel_line_to: @@ -1116,8 +1116,8 @@ void cogl_path_line_to (ClutterFixed x, * Adds a straight line segment to the current path that ends at the * given coordinates relative to the current pen location. **/ -void cogl_path_rel_line_to (ClutterFixed x, - ClutterFixed y); +void cogl_path_rel_line_to (CoglFixed x, + CoglFixed y); /** @@ -1134,12 +1134,12 @@ void cogl_path_rel_line_to (ClutterFixed x, * of the arc. If you perform a move_to to the arcs start just before * drawing it you create a free standing arc. **/ -void cogl_path_arc (ClutterFixed center_x, - ClutterFixed center_y, - ClutterFixed radius_x, - ClutterFixed radius_y, - ClutterAngle angle_1, - ClutterAngle angle_2); +void cogl_path_arc (CoglFixed center_x, + CoglFixed center_y, + CoglFixed radius_x, + CoglFixed radius_y, + CoglAngle angle_1, + CoglAngle angle_2); @@ -1156,12 +1156,12 @@ void cogl_path_arc (ClutterFixed center_x, * second, third and fourth control points and using current pen location * as the first control point. **/ -void cogl_path_curve_to (ClutterFixed x1, - ClutterFixed y1, - ClutterFixed x2, - ClutterFixed y2, - ClutterFixed x3, - ClutterFixed y3); +void cogl_path_curve_to (CoglFixed x1, + CoglFixed y1, + CoglFixed x2, + CoglFixed y2, + CoglFixed x3, + CoglFixed y3); /** * cogl_path_rel_curve_to: @@ -1177,12 +1177,12 @@ void cogl_path_curve_to (ClutterFixed x1, * as the first control point. The given coordinates are relative to the * current pen location. */ -void cogl_path_rel_curve_to (ClutterFixed x1, - ClutterFixed y1, - ClutterFixed x2, - ClutterFixed y2, - ClutterFixed x3, - ClutterFixed y3); +void cogl_path_rel_curve_to (CoglFixed x1, + CoglFixed y1, + CoglFixed x2, + CoglFixed y2, + CoglFixed x3, + CoglFixed y3); /** * cogl_path_close: @@ -1202,10 +1202,10 @@ void cogl_path_close (void); * Clears the previously constructed shape and constructs a straight * line shape start and ending at the given coordinates. **/ -void cogl_path_line (ClutterFixed x1, - ClutterFixed y1, - ClutterFixed x2, - ClutterFixed y2); +void cogl_path_line (CoglFixed x1, + CoglFixed y1, + CoglFixed x2, + CoglFixed y2); /** * cogl_path_polyline: @@ -1224,8 +1224,8 @@ void cogl_path_line (ClutterFixed x1, * fashion for the rest of the vertices. (num_points - 1) segments will * be constructed. **/ -void cogl_path_polyline (ClutterFixed *coords, - gint num_points); +void cogl_path_polyline (CoglFixed *coords, + gint num_points); /** @@ -1242,8 +1242,8 @@ void cogl_path_polyline (ClutterFixed *coords, * represents the Y coordinate of the first vertex, continuing in the same * fashion for the rest of the vertices. **/ -void cogl_path_polygon (ClutterFixed *coords, - gint num_points); +void cogl_path_polygon (CoglFixed *coords, + gint num_points); /** @@ -1256,10 +1256,10 @@ void cogl_path_polygon (ClutterFixed *coords, * Clears the previously constructed shape and constructs a rectangular * shape at the given coordinates. **/ -void cogl_path_rectangle (ClutterFixed x, - ClutterFixed y, - ClutterFixed width, - ClutterFixed height); +void cogl_path_rectangle (CoglFixed x, + CoglFixed y, + CoglFixed width, + CoglFixed height); /** * cogl_path_ellipse: @@ -1271,10 +1271,10 @@ void cogl_path_rectangle (ClutterFixed x, * Clears the previously constructed shape and constructs an ellipse * shape. **/ -void cogl_path_ellipse (ClutterFixed center_x, - ClutterFixed center_y, - ClutterFixed radius_x, - ClutterFixed radius_y); +void cogl_path_ellipse (CoglFixed center_x, + CoglFixed center_y, + CoglFixed radius_x, + CoglFixed radius_y); /** * cogl_path_round_rectangle: @@ -1289,12 +1289,12 @@ void cogl_path_ellipse (ClutterFixed center_x, * Clears the previously constructed shape and constructs a rectangular * shape with rounded corners. **/ -void cogl_path_round_rectangle (ClutterFixed x, - ClutterFixed y, - ClutterFixed width, - ClutterFixed height, - ClutterFixed radius, - ClutterAngle arc_step); +void cogl_path_round_rectangle (CoglFixed x, + CoglFixed y, + CoglFixed width, + CoglFixed height, + CoglFixed radius, + CoglAngle arc_step); /** * SECTION:cogl-shaders diff --git a/common/Makefile.am b/common/Makefile.am index 9e70c9f86..d439f8e25 100644 --- a/common/Makefile.am +++ b/common/Makefile.am @@ -25,4 +25,5 @@ libclutter_cogl_common_la_SOURCES = \ cogl-primitives.c \ cogl-bitmap-pixbuf.c \ cogl-clip-stack.h \ - cogl-clip-stack.c + cogl-clip-stack.c \ + cogl-fixed.c diff --git a/common/cogl-clip-stack.c b/common/cogl-clip-stack.c index c24068c4c..66d844bed 100644 --- a/common/cogl-clip-stack.c +++ b/common/cogl-clip-stack.c @@ -32,19 +32,19 @@ /* These are defined in the particular backend (float in GL vs fixed in GL ES) */ -void _cogl_set_clip_planes (ClutterFixed x, - ClutterFixed y, - ClutterFixed width, - ClutterFixed height); +void _cogl_set_clip_planes (CoglFixed x, + CoglFixed y, + CoglFixed width, + CoglFixed height); void _cogl_init_stencil_buffer (void); -void _cogl_add_stencil_clip (ClutterFixed x, - ClutterFixed y, - ClutterFixed width, - ClutterFixed height, +void _cogl_add_stencil_clip (CoglFixed x, + CoglFixed y, + CoglFixed width, + CoglFixed height, gboolean first); void _cogl_disable_clip_planes (void); void _cogl_disable_stencil_buffer (void); -void _cogl_set_matrix (const ClutterFixed *matrix); +void _cogl_set_matrix (const CoglFixed *matrix); typedef struct _CoglClipStackEntry CoglClipStackEntry; @@ -57,13 +57,13 @@ struct _CoglClipStackEntry gboolean clear; /* The rectangle for this clip */ - ClutterFixed x_offset; - ClutterFixed y_offset; - ClutterFixed width; - ClutterFixed height; + CoglFixed x_offset; + CoglFixed y_offset; + CoglFixed width; + CoglFixed height; /* The matrix that was current when the clip was set */ - ClutterFixed matrix[16]; + CoglFixed matrix[16]; }; static GList *cogl_clip_stack_top = NULL; @@ -90,10 +90,10 @@ _cogl_clip_stack_add (const CoglClipStackEntry *entry, int depth) } void -cogl_clip_set (ClutterFixed x_offset, - ClutterFixed y_offset, - ClutterFixed width, - ClutterFixed height) +cogl_clip_set (CoglFixed x_offset, + CoglFixed y_offset, + CoglFixed width, + CoglFixed height) { CoglClipStackEntry *entry = g_slice_new (CoglClipStackEntry); diff --git a/common/cogl-fixed.c b/common/cogl-fixed.c new file mode 100644 index 000000000..76a3b39f7 --- /dev/null +++ b/common/cogl-fixed.c @@ -0,0 +1,911 @@ +#define G_IMPLEMENT_INLINES + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "cogl-fixed.h" + +/* pre-computed sin table for 1st quadrant + * + * Currently contains 257 entries. + * + * The current error (compared to system sin) is about + * 0.5% for values near the start of the table where the + * curve is steep, but improving rapidly. If this precision + * is not enough, we can increase the size of the table + */ +static const CoglFixed sin_tbl[] = +{ + 0x00000000L, 0x00000192L, 0x00000324L, 0x000004B6L, + 0x00000648L, 0x000007DAL, 0x0000096CL, 0x00000AFEL, + 0x00000C90L, 0x00000E21L, 0x00000FB3L, 0x00001144L, + 0x000012D5L, 0x00001466L, 0x000015F7L, 0x00001787L, + 0x00001918L, 0x00001AA8L, 0x00001C38L, 0x00001DC7L, + 0x00001F56L, 0x000020E5L, 0x00002274L, 0x00002402L, + 0x00002590L, 0x0000271EL, 0x000028ABL, 0x00002A38L, + 0x00002BC4L, 0x00002D50L, 0x00002EDCL, 0x00003067L, + 0x000031F1L, 0x0000337CL, 0x00003505L, 0x0000368EL, + 0x00003817L, 0x0000399FL, 0x00003B27L, 0x00003CAEL, + 0x00003E34L, 0x00003FBAL, 0x0000413FL, 0x000042C3L, + 0x00004447L, 0x000045CBL, 0x0000474DL, 0x000048CFL, + 0x00004A50L, 0x00004BD1L, 0x00004D50L, 0x00004ECFL, + 0x0000504DL, 0x000051CBL, 0x00005348L, 0x000054C3L, + 0x0000563EL, 0x000057B9L, 0x00005932L, 0x00005AAAL, + 0x00005C22L, 0x00005D99L, 0x00005F0FL, 0x00006084L, + 0x000061F8L, 0x0000636BL, 0x000064DDL, 0x0000664EL, + 0x000067BEL, 0x0000692DL, 0x00006A9BL, 0x00006C08L, + 0x00006D74L, 0x00006EDFL, 0x00007049L, 0x000071B2L, + 0x0000731AL, 0x00007480L, 0x000075E6L, 0x0000774AL, + 0x000078ADL, 0x00007A10L, 0x00007B70L, 0x00007CD0L, + 0x00007E2FL, 0x00007F8CL, 0x000080E8L, 0x00008243L, + 0x0000839CL, 0x000084F5L, 0x0000864CL, 0x000087A1L, + 0x000088F6L, 0x00008A49L, 0x00008B9AL, 0x00008CEBL, + 0x00008E3AL, 0x00008F88L, 0x000090D4L, 0x0000921FL, + 0x00009368L, 0x000094B0L, 0x000095F7L, 0x0000973CL, + 0x00009880L, 0x000099C2L, 0x00009B03L, 0x00009C42L, + 0x00009D80L, 0x00009EBCL, 0x00009FF7L, 0x0000A130L, + 0x0000A268L, 0x0000A39EL, 0x0000A4D2L, 0x0000A605L, + 0x0000A736L, 0x0000A866L, 0x0000A994L, 0x0000AAC1L, + 0x0000ABEBL, 0x0000AD14L, 0x0000AE3CL, 0x0000AF62L, + 0x0000B086L, 0x0000B1A8L, 0x0000B2C9L, 0x0000B3E8L, + 0x0000B505L, 0x0000B620L, 0x0000B73AL, 0x0000B852L, + 0x0000B968L, 0x0000BA7DL, 0x0000BB8FL, 0x0000BCA0L, + 0x0000BDAFL, 0x0000BEBCL, 0x0000BFC7L, 0x0000C0D1L, + 0x0000C1D8L, 0x0000C2DEL, 0x0000C3E2L, 0x0000C4E4L, + 0x0000C5E4L, 0x0000C6E2L, 0x0000C7DEL, 0x0000C8D9L, + 0x0000C9D1L, 0x0000CAC7L, 0x0000CBBCL, 0x0000CCAEL, + 0x0000CD9FL, 0x0000CE8EL, 0x0000CF7AL, 0x0000D065L, + 0x0000D14DL, 0x0000D234L, 0x0000D318L, 0x0000D3FBL, + 0x0000D4DBL, 0x0000D5BAL, 0x0000D696L, 0x0000D770L, + 0x0000D848L, 0x0000D91EL, 0x0000D9F2L, 0x0000DAC4L, + 0x0000DB94L, 0x0000DC62L, 0x0000DD2DL, 0x0000DDF7L, + 0x0000DEBEL, 0x0000DF83L, 0x0000E046L, 0x0000E107L, + 0x0000E1C6L, 0x0000E282L, 0x0000E33CL, 0x0000E3F4L, + 0x0000E4AAL, 0x0000E55EL, 0x0000E610L, 0x0000E6BFL, + 0x0000E76CL, 0x0000E817L, 0x0000E8BFL, 0x0000E966L, + 0x0000EA0AL, 0x0000EAABL, 0x0000EB4BL, 0x0000EBE8L, + 0x0000EC83L, 0x0000ED1CL, 0x0000EDB3L, 0x0000EE47L, + 0x0000EED9L, 0x0000EF68L, 0x0000EFF5L, 0x0000F080L, + 0x0000F109L, 0x0000F18FL, 0x0000F213L, 0x0000F295L, + 0x0000F314L, 0x0000F391L, 0x0000F40CL, 0x0000F484L, + 0x0000F4FAL, 0x0000F56EL, 0x0000F5DFL, 0x0000F64EL, + 0x0000F6BAL, 0x0000F724L, 0x0000F78CL, 0x0000F7F1L, + 0x0000F854L, 0x0000F8B4L, 0x0000F913L, 0x0000F96EL, + 0x0000F9C8L, 0x0000FA1FL, 0x0000FA73L, 0x0000FAC5L, + 0x0000FB15L, 0x0000FB62L, 0x0000FBADL, 0x0000FBF5L, + 0x0000FC3BL, 0x0000FC7FL, 0x0000FCC0L, 0x0000FCFEL, + 0x0000FD3BL, 0x0000FD74L, 0x0000FDACL, 0x0000FDE1L, + 0x0000FE13L, 0x0000FE43L, 0x0000FE71L, 0x0000FE9CL, + 0x0000FEC4L, 0x0000FEEBL, 0x0000FF0EL, 0x0000FF30L, + 0x0000FF4EL, 0x0000FF6BL, 0x0000FF85L, 0x0000FF9CL, + 0x0000FFB1L, 0x0000FFC4L, 0x0000FFD4L, 0x0000FFE1L, + 0x0000FFECL, 0x0000FFF5L, 0x0000FFFBL, 0x0000FFFFL, + 0x00010000L, +}; + +/* pre-computed tan table for 1st quadrant */ +static const CoglFixed tan_tbl[] = +{ + 0x00000000L, 0x00000192L, 0x00000324L, 0x000004b7L, + 0x00000649L, 0x000007dbL, 0x0000096eL, 0x00000b01L, + 0x00000c94L, 0x00000e27L, 0x00000fbaL, 0x0000114eL, + 0x000012e2L, 0x00001477L, 0x0000160cL, 0x000017a1L, + 0x00001937L, 0x00001acdL, 0x00001c64L, 0x00001dfbL, + 0x00001f93L, 0x0000212cL, 0x000022c5L, 0x0000245fL, + 0x000025f9L, 0x00002795L, 0x00002931L, 0x00002aceL, + 0x00002c6cL, 0x00002e0aL, 0x00002faaL, 0x0000314aL, + 0x000032ecL, 0x0000348eL, 0x00003632L, 0x000037d7L, + 0x0000397dL, 0x00003b24L, 0x00003cccL, 0x00003e75L, + 0x00004020L, 0x000041ccL, 0x00004379L, 0x00004528L, + 0x000046d8L, 0x0000488aL, 0x00004a3dL, 0x00004bf2L, + 0x00004da8L, 0x00004f60L, 0x0000511aL, 0x000052d5L, + 0x00005492L, 0x00005651L, 0x00005812L, 0x000059d5L, + 0x00005b99L, 0x00005d60L, 0x00005f28L, 0x000060f3L, + 0x000062c0L, 0x0000648fL, 0x00006660L, 0x00006834L, + 0x00006a0aL, 0x00006be2L, 0x00006dbdL, 0x00006f9aL, + 0x0000717aL, 0x0000735dL, 0x00007542L, 0x0000772aL, + 0x00007914L, 0x00007b02L, 0x00007cf2L, 0x00007ee6L, + 0x000080dcL, 0x000082d6L, 0x000084d2L, 0x000086d2L, + 0x000088d6L, 0x00008adcL, 0x00008ce7L, 0x00008ef4L, + 0x00009106L, 0x0000931bL, 0x00009534L, 0x00009750L, + 0x00009971L, 0x00009b95L, 0x00009dbeL, 0x00009febL, + 0x0000a21cL, 0x0000a452L, 0x0000a68cL, 0x0000a8caL, + 0x0000ab0eL, 0x0000ad56L, 0x0000afa3L, 0x0000b1f5L, + 0x0000b44cL, 0x0000b6a8L, 0x0000b909L, 0x0000bb70L, + 0x0000bdddL, 0x0000c04fL, 0x0000c2c7L, 0x0000c545L, + 0x0000c7c9L, 0x0000ca53L, 0x0000cce3L, 0x0000cf7aL, + 0x0000d218L, 0x0000d4bcL, 0x0000d768L, 0x0000da1aL, + 0x0000dcd4L, 0x0000df95L, 0x0000e25eL, 0x0000e52eL, + 0x0000e806L, 0x0000eae7L, 0x0000edd0L, 0x0000f0c1L, + 0x0000f3bbL, 0x0000f6bfL, 0x0000f9cbL, 0x0000fce1L, + 0x00010000L, 0x00010329L, 0x0001065dL, 0x0001099aL, + 0x00010ce3L, 0x00011036L, 0x00011394L, 0x000116feL, + 0x00011a74L, 0x00011df6L, 0x00012184L, 0x0001251fL, + 0x000128c6L, 0x00012c7cL, 0x0001303fL, 0x00013410L, + 0x000137f0L, 0x00013bdfL, 0x00013fddL, 0x000143ebL, + 0x00014809L, 0x00014c37L, 0x00015077L, 0x000154c9L, + 0x0001592dL, 0x00015da4L, 0x0001622eL, 0x000166ccL, + 0x00016b7eL, 0x00017045L, 0x00017523L, 0x00017a17L, + 0x00017f22L, 0x00018444L, 0x00018980L, 0x00018ed5L, + 0x00019445L, 0x000199cfL, 0x00019f76L, 0x0001a53aL, + 0x0001ab1cL, 0x0001b11dL, 0x0001b73fL, 0x0001bd82L, + 0x0001c3e7L, 0x0001ca71L, 0x0001d11fL, 0x0001d7f4L, + 0x0001def1L, 0x0001e618L, 0x0001ed6aL, 0x0001f4e8L, + 0x0001fc96L, 0x00020473L, 0x00020c84L, 0x000214c9L, + 0x00021d44L, 0x000225f9L, 0x00022ee9L, 0x00023818L, + 0x00024187L, 0x00024b3aL, 0x00025534L, 0x00025f78L, + 0x00026a0aL, 0x000274edL, 0x00028026L, 0x00028bb8L, + 0x000297a8L, 0x0002a3fbL, 0x0002b0b5L, 0x0002bdddL, + 0x0002cb79L, 0x0002d98eL, 0x0002e823L, 0x0002f740L, + 0x000306ecL, 0x00031730L, 0x00032816L, 0x000339a6L, + 0x00034bebL, 0x00035ef2L, 0x000372c6L, 0x00038776L, + 0x00039d11L, 0x0003b3a6L, 0x0003cb48L, 0x0003e40aL, + 0x0003fe02L, 0x00041949L, 0x000435f7L, 0x0004542bL, + 0x00047405L, 0x000495a9L, 0x0004b940L, 0x0004def6L, + 0x00050700L, 0x00053196L, 0x00055ef9L, 0x00058f75L, + 0x0005c35dL, 0x0005fb14L, 0x00063709L, 0x000677c0L, + 0x0006bdd0L, 0x000709ecL, 0x00075ce6L, 0x0007b7bbL, + 0x00081b98L, 0x000889e9L, 0x0009046eL, 0x00098d4dL, + 0x000a2736L, 0x000ad593L, 0x000b9cc6L, 0x000c828aL, + 0x000d8e82L, 0x000ecb1bL, 0x001046eaL, 0x00121703L, + 0x00145b00L, 0x0017448dL, 0x001b2672L, 0x002095afL, + 0x0028bc49L, 0x0036519aL, 0x00517bb6L, 0x00a2f8fdL, + 0x46d3eab2L, +}; + +/* 257-value table of atan. + * + * atan_tbl[0] is atan(0.0) and atan_tbl[256] is atan(1). + * The angles are radians in CoglFixed truncated to 16-bit (they're + * all less than one) + */ +static const guint16 atan_tbl[] = +{ + 0x0000, 0x00FF, 0x01FF, 0x02FF, 0x03FF, 0x04FF, 0x05FF, 0x06FF, + 0x07FF, 0x08FF, 0x09FE, 0x0AFE, 0x0BFD, 0x0CFD, 0x0DFC, 0x0EFB, + 0x0FFA, 0x10F9, 0x11F8, 0x12F7, 0x13F5, 0x14F3, 0x15F2, 0x16F0, + 0x17EE, 0x18EB, 0x19E9, 0x1AE6, 0x1BE3, 0x1CE0, 0x1DDD, 0x1ED9, + 0x1FD5, 0x20D1, 0x21CD, 0x22C8, 0x23C3, 0x24BE, 0x25B9, 0x26B3, + 0x27AD, 0x28A7, 0x29A1, 0x2A9A, 0x2B93, 0x2C8B, 0x2D83, 0x2E7B, + 0x2F72, 0x306A, 0x3160, 0x3257, 0x334D, 0x3442, 0x3538, 0x362D, + 0x3721, 0x3815, 0x3909, 0x39FC, 0x3AEF, 0x3BE2, 0x3CD4, 0x3DC5, + 0x3EB6, 0x3FA7, 0x4097, 0x4187, 0x4277, 0x4365, 0x4454, 0x4542, + 0x462F, 0x471C, 0x4809, 0x48F5, 0x49E0, 0x4ACB, 0x4BB6, 0x4CA0, + 0x4D89, 0x4E72, 0x4F5B, 0x5043, 0x512A, 0x5211, 0x52F7, 0x53DD, + 0x54C2, 0x55A7, 0x568B, 0x576F, 0x5852, 0x5934, 0x5A16, 0x5AF7, + 0x5BD8, 0x5CB8, 0x5D98, 0x5E77, 0x5F55, 0x6033, 0x6110, 0x61ED, + 0x62C9, 0x63A4, 0x647F, 0x6559, 0x6633, 0x670C, 0x67E4, 0x68BC, + 0x6993, 0x6A6A, 0x6B40, 0x6C15, 0x6CEA, 0x6DBE, 0x6E91, 0x6F64, + 0x7036, 0x7108, 0x71D9, 0x72A9, 0x7379, 0x7448, 0x7516, 0x75E4, + 0x76B1, 0x777E, 0x7849, 0x7915, 0x79DF, 0x7AA9, 0x7B72, 0x7C3B, + 0x7D03, 0x7DCA, 0x7E91, 0x7F57, 0x801C, 0x80E1, 0x81A5, 0x8269, + 0x832B, 0x83EE, 0x84AF, 0x8570, 0x8630, 0x86F0, 0x87AF, 0x886D, + 0x892A, 0x89E7, 0x8AA4, 0x8B5F, 0x8C1A, 0x8CD5, 0x8D8E, 0x8E47, + 0x8F00, 0x8FB8, 0x906F, 0x9125, 0x91DB, 0x9290, 0x9345, 0x93F9, + 0x94AC, 0x955F, 0x9611, 0x96C2, 0x9773, 0x9823, 0x98D2, 0x9981, + 0x9A2F, 0x9ADD, 0x9B89, 0x9C36, 0x9CE1, 0x9D8C, 0x9E37, 0x9EE0, + 0x9F89, 0xA032, 0xA0DA, 0xA181, 0xA228, 0xA2CE, 0xA373, 0xA418, + 0xA4BC, 0xA560, 0xA602, 0xA6A5, 0xA746, 0xA7E8, 0xA888, 0xA928, + 0xA9C7, 0xAA66, 0xAB04, 0xABA1, 0xAC3E, 0xACDB, 0xAD76, 0xAE11, + 0xAEAC, 0xAF46, 0xAFDF, 0xB078, 0xB110, 0xB1A7, 0xB23E, 0xB2D5, + 0xB36B, 0xB400, 0xB495, 0xB529, 0xB5BC, 0xB64F, 0xB6E2, 0xB773, + 0xB805, 0xB895, 0xB926, 0xB9B5, 0xBA44, 0xBAD3, 0xBB61, 0xBBEE, + 0xBC7B, 0xBD07, 0xBD93, 0xBE1E, 0xBEA9, 0xBF33, 0xBFBC, 0xC046, + 0xC0CE, 0xC156, 0xC1DD, 0xC264, 0xC2EB, 0xC371, 0xC3F6, 0xC47B, + 0xC4FF, 0xC583, 0xC606, 0xC689, 0xC70B, 0xC78D, 0xC80E, 0xC88F, + 0xC90F +}; + +/* look up table for square root */ +static const CoglFixed sqrt_tbl[] = +{ + 0x00000000L, 0x00010000L, 0x00016A0AL, 0x0001BB68L, + 0x00020000L, 0x00023C6FL, 0x00027312L, 0x0002A550L, + 0x0002D414L, 0x00030000L, 0x0003298BL, 0x0003510EL, + 0x000376CFL, 0x00039B05L, 0x0003BDDDL, 0x0003DF7CL, + 0x00040000L, 0x00041F84L, 0x00043E1EL, 0x00045BE1L, + 0x000478DEL, 0x00049524L, 0x0004B0BFL, 0x0004CBBCL, + 0x0004E624L, 0x00050000L, 0x00051959L, 0x00053237L, + 0x00054AA0L, 0x0005629AL, 0x00057A2BL, 0x00059159L, + 0x0005A828L, 0x0005BE9CL, 0x0005D4B9L, 0x0005EA84L, + 0x00060000L, 0x00061530L, 0x00062A17L, 0x00063EB8L, + 0x00065316L, 0x00066733L, 0x00067B12L, 0x00068EB4L, + 0x0006A21DL, 0x0006B54DL, 0x0006C847L, 0x0006DB0CL, + 0x0006ED9FL, 0x00070000L, 0x00071232L, 0x00072435L, + 0x0007360BL, 0x000747B5L, 0x00075935L, 0x00076A8CL, + 0x00077BBBL, 0x00078CC2L, 0x00079DA3L, 0x0007AE60L, + 0x0007BEF8L, 0x0007CF6DL, 0x0007DFBFL, 0x0007EFF0L, + 0x00080000L, 0x00080FF0L, 0x00081FC1L, 0x00082F73L, + 0x00083F08L, 0x00084E7FL, 0x00085DDAL, 0x00086D18L, + 0x00087C3BL, 0x00088B44L, 0x00089A32L, 0x0008A906L, + 0x0008B7C2L, 0x0008C664L, 0x0008D4EEL, 0x0008E361L, + 0x0008F1BCL, 0x00090000L, 0x00090E2EL, 0x00091C45L, + 0x00092A47L, 0x00093834L, 0x0009460CL, 0x000953CFL, + 0x0009617EL, 0x00096F19L, 0x00097CA1L, 0x00098A16L, + 0x00099777L, 0x0009A4C6L, 0x0009B203L, 0x0009BF2EL, + 0x0009CC47L, 0x0009D94FL, 0x0009E645L, 0x0009F32BL, + 0x000A0000L, 0x000A0CC5L, 0x000A1979L, 0x000A261EL, + 0x000A32B3L, 0x000A3F38L, 0x000A4BAEL, 0x000A5816L, + 0x000A646EL, 0x000A70B8L, 0x000A7CF3L, 0x000A8921L, + 0x000A9540L, 0x000AA151L, 0x000AAD55L, 0x000AB94BL, + 0x000AC534L, 0x000AD110L, 0x000ADCDFL, 0x000AE8A1L, + 0x000AF457L, 0x000B0000L, 0x000B0B9DL, 0x000B172DL, + 0x000B22B2L, 0x000B2E2BL, 0x000B3998L, 0x000B44F9L, + 0x000B504FL, 0x000B5B9AL, 0x000B66D9L, 0x000B720EL, + 0x000B7D37L, 0x000B8856L, 0x000B936AL, 0x000B9E74L, + 0x000BA973L, 0x000BB467L, 0x000BBF52L, 0x000BCA32L, + 0x000BD508L, 0x000BDFD5L, 0x000BEA98L, 0x000BF551L, + 0x000C0000L, 0x000C0AA6L, 0x000C1543L, 0x000C1FD6L, + 0x000C2A60L, 0x000C34E1L, 0x000C3F59L, 0x000C49C8L, + 0x000C542EL, 0x000C5E8CL, 0x000C68E0L, 0x000C732DL, + 0x000C7D70L, 0x000C87ACL, 0x000C91DFL, 0x000C9C0AL, + 0x000CA62CL, 0x000CB047L, 0x000CBA59L, 0x000CC464L, + 0x000CCE66L, 0x000CD861L, 0x000CE254L, 0x000CEC40L, + 0x000CF624L, 0x000D0000L, 0x000D09D5L, 0x000D13A2L, + 0x000D1D69L, 0x000D2727L, 0x000D30DFL, 0x000D3A90L, + 0x000D4439L, 0x000D4DDCL, 0x000D5777L, 0x000D610CL, + 0x000D6A9AL, 0x000D7421L, 0x000D7DA1L, 0x000D871BL, + 0x000D908EL, 0x000D99FAL, 0x000DA360L, 0x000DACBFL, + 0x000DB618L, 0x000DBF6BL, 0x000DC8B7L, 0x000DD1FEL, + 0x000DDB3DL, 0x000DE477L, 0x000DEDABL, 0x000DF6D8L, + 0x000E0000L, 0x000E0922L, 0x000E123DL, 0x000E1B53L, + 0x000E2463L, 0x000E2D6DL, 0x000E3672L, 0x000E3F70L, + 0x000E4869L, 0x000E515DL, 0x000E5A4BL, 0x000E6333L, + 0x000E6C16L, 0x000E74F3L, 0x000E7DCBL, 0x000E869DL, + 0x000E8F6BL, 0x000E9832L, 0x000EA0F5L, 0x000EA9B2L, + 0x000EB26BL, 0x000EBB1EL, 0x000EC3CBL, 0x000ECC74L, + 0x000ED518L, 0x000EDDB7L, 0x000EE650L, 0x000EEEE5L, + 0x000EF775L, 0x000F0000L, 0x000F0886L, 0x000F1107L, + 0x000F1984L, 0x000F21FCL, 0x000F2A6FL, 0x000F32DDL, + 0x000F3B47L, 0x000F43ACL, 0x000F4C0CL, 0x000F5468L, + 0x000F5CBFL, 0x000F6512L, 0x000F6D60L, 0x000F75AAL, + 0x000F7DEFL, 0x000F8630L, 0x000F8E6DL, 0x000F96A5L, + 0x000F9ED9L, 0x000FA709L, 0x000FAF34L, 0x000FB75BL, + 0x000FBF7EL, 0x000FC79DL, 0x000FCFB7L, 0x000FD7CEL, + 0x000FDFE0L, 0x000FE7EEL, 0x000FEFF8L, 0x000FF7FEL, + 0x00100000L, +}; + +/* the difference of the angle for two adjacent values in the + * sin_tbl table, expressed as CoglFixed number + */ +#define COGL_SIN_STEP 0x00000192 + +static const double _magic = 68719476736.0 * 1.5; + +/* Where in the 64 bits of double is the mantissa. + * + * FIXME - this should go inside the configure.ac + */ +#if (__FLOAT_WORD_ORDER == 1234) +#define _COGL_MAN 0 +#elif (__FLOAT_WORD_ORDER == 4321) +#define _COGL_MAN 1 +#else +#define COGL_NO_FAST_CONVERSIONS +#endif + +/* + * cogl_double_to_fixed : + * @value: value to be converted + * + * A fast conversion from double precision floating to fixed point + * + * Return value: Fixed point representation of the value + */ +CoglFixed +cogl_double_to_fixed (double val) +{ +#ifdef COGL_NO_FAST_CONVERSIONS + return (CoglFixed) (val * (double) COGL_FIXED_1); +#else + union { + double d; + unsigned int i[2]; + } dbl; + + dbl.d = val; + dbl.d = dbl.d + _magic; + + return dbl.i[_COGL_MAN]; +#endif +} + +/* + * cogl_double_to_int : + * @value: value to be converted + * + * A fast conversion from doulbe precision floatint point to int; + * used this instead of casting double/float to int. + * + * Return value: Integer part of the double + */ +gint +cogl_double_to_int (double val) +{ +#ifdef COGL_NO_FAST_CONVERSIONS + return (gint) (val); +#else + union { + double d; + unsigned int i[2]; + } dbl; + + dbl.d = val; + dbl.d = dbl.d + _magic; + + return ((int) dbl.i[_COGL_MAN]) >> 16; +#endif +} + +guint +cogl_double_to_uint (double val) +{ +#ifdef COGL_NO_FAST_CONVERSIONS + return (guint)(val); +#else + union { + double d; + unsigned int i[2]; + } dbl; + + dbl.d = val; + dbl.d = dbl.d + _magic; + + return (dbl.i[_COGL_MAN]) >> 16; +#endif +} + +#undef _COGL_MAN + +CoglFixed +cogl_fixed_sin (CoglFixed angle) +{ + int sign = 1, indx1, indx2; + CoglFixed low, high, d1, d2; + + /* convert negative angle to positive + sign */ + if ((int) angle < 0) + { + sign = 1 + ~sign; + angle = 1 + ~angle; + } + + /* reduce to <0, 2*pi) */ + angle = angle % COGL_FIXED_2_PI; + + /* reduce to first quadrant and sign */ + if (angle > COGL_FIXED_PI) + { + sign = 1 + ~sign; + + if (angle > COGL_FIXED_PI + COGL_FIXED_PI_2) + { + /* fourth qudrant */ + angle = COGL_FIXED_2_PI - angle; + } + else + { + /* third quadrant */ + angle -= COGL_FIXED_PI; + } + } + else + { + if (angle > COGL_FIXED_PI_2) + { + /* second quadrant */ + angle = COGL_FIXED_PI - angle; + } + } + + /* Calculate indices of the two nearest values in our table + * and return weighted average + * + * Handle the end of the table gracefully + */ + indx1 = COGL_FIXED_DIV (angle, COGL_SIN_STEP); + indx1 = COGL_FIXED_TO_INT (indx1); + + if (indx1 == (G_N_ELEMENTS (sin_tbl) - 1)) + { + indx2 = indx1; + indx1 = indx2 - 1; + } + else + { + indx2 = indx1 + 1; + } + + low = sin_tbl[indx1]; + high = sin_tbl[indx2]; + + d1 = angle - indx1 * COGL_SIN_STEP; + d2 = indx2 * COGL_SIN_STEP - angle; + + angle = ((low * d2 + high * d1) / (COGL_SIN_STEP)); + + if (sign < 0) + angle = (1 + ~angle); + + return angle; +} + +CoglFixed +cogl_angle_sin (CoglAngle angle) +{ + int sign = 1; + CoglFixed result; + + /* reduce negative angle to positive + sign */ + if (angle < 0) + { + sign = 1 + ~sign; + angle = 1 + ~angle; + } + + /* reduce to <0, 2*pi) */ + angle &= 0x3ff; + + /* reduce to first quadrant and sign */ + if (angle > 512) + { + sign = 1 + ~sign; + + if (angle > 768) + { + /* fourth qudrant */ + angle = 1024 - angle; + } + else + { + /* third quadrant */ + angle -= 512; + } + } + else + { + if (angle > 256) + { + /* second quadrant */ + angle = 512 - angle; + } + } + + result = sin_tbl[angle]; + + if (sign < 0) + result = (1 + ~result); + + return result; +} + +CoglFixed +cogl_angle_tan (CoglAngle angle) +{ + int sign = 1; + CoglFixed result; + + /* reduce negative angle to positive + sign */ + if (angle < 0) + { + sign = 1 + ~sign; + angle = 1 + ~angle; + } + + /* reduce to <0, pi) */ + angle &= 0x1ff; + + /* reduce to first quadrant and sign */ + if (angle > 256) + { + sign = 1 + ~sign; + angle = 512 - angle; + } + + result = tan_tbl[angle]; + + if (sign < 0) + result = (1 + ~result); + + return result; +} + +CoglFixed +cogl_fixed_atan (CoglFixed x) +{ + gboolean negative = FALSE; + CoglFixed angle; + + if (x < 0) + { + negative = TRUE; + x = -x; + } + + if (x > COGL_FIXED_1) + { + /* if x > 1 then atan(x) = pi/2 - atan(1/x) */ + angle = COGL_FIXED_PI / 2 + - atan_tbl[COGL_FIXED_DIV (COGL_FIXED_1, x) >> 8]; + } + else + angle = atan_tbl[x >> 8]; + + return negative ? -angle : angle; +} + +CoglFixed +cogl_fixed_atan2 (CoglFixed y, CoglFixed x) +{ + CoglFixed angle; + + if (x == 0) + angle = y >= 0 ? COGL_FIXED_PI_2 : -COGL_FIXED_PI_2; + else + { + angle = cogl_fixed_atan (COGL_FIXED_DIV (y, x)); + + if (x < 0) + angle += y >= 0 ? COGL_FIXED_PI : -COGL_FIXED_PI; + } + + return angle; +} + +CoglFixed +cogl_fixed_sqrt (CoglFixed x) +{ + /* The idea for this comes from the Alegro library, exploiting the + * fact that, + * sqrt (x) = sqrt (x/d) * sqrt (d); + * + * For d == 2^(n): + * + * sqrt (x) = sqrt (x/2^(2n)) * 2^n + * + * By locating suitable n for given x such that x >> 2n is in <0,255> + * we can use a LUT of precomputed values. + * + * This algorithm provides both good performance and precision; + * on ARM this function is about 5 times faster than c-lib sqrt, + * whilst producing errors < 1%. + */ + int t = 0; + int sh = 0; + unsigned int mask = 0x40000000; + unsigned fract = x & 0x0000ffff; + unsigned int d1, d2; + CoglFixed v1, v2; + + if (x <= 0) + return 0; + + if (x > COGL_FIXED_255 || x < COGL_FIXED_1) + { + /* + * Find the highest bit set + */ +#if __arm__ + /* This actually requires at least arm v5, but gcc does not seem + * to set the architecture defines correctly, and it is I think + * very unlikely that anyone will want to use clutter on anything + * less than v5. + */ + int bit; + __asm__ ("clz %0, %1\n" + "rsb %0, %0, #31\n" + :"=r"(bit) + :"r" (x)); + + /* make even (2n) */ + bit &= 0xfffffffe; +#else + /* TODO -- add i386 branch using bshr + * + * NB: it's been said that the bshr instruction is poorly implemented + * and that it is possible to write a faster code in C using binary + * search -- at some point we should explore this + */ + int bit = 30; + while (bit >= 0) + { + if (x & mask) + break; + + mask = (mask >> 1 | mask >> 2); + bit -= 2; + } +#endif + + /* now bit indicates the highest bit set; there are two scenarios + * + * 1) bit < 23: Our number is smaller so we shift it left to maximase + * precision (< 16 really, since <16,23> never goes + * through here. + * + * 2) bit > 23: our number is above the table, so we shift right + */ + + sh = ((bit - 22) >> 1); + if (bit >= 8) + t = (x >> (16 - 22 + bit)); + else + t = (x << (22 - 16 - bit)); + } + else + { + t = COGL_FIXED_TO_INT (x); + } + + /* Do a weighted average of the two nearest values */ + v1 = sqrt_tbl[t]; + v2 = sqrt_tbl[t+1]; + + /* + * 12 is fairly arbitrary -- we want integer that is not too big to cost + * us precision + */ + d1 = (unsigned)(fract) >> 12; + d2 = ((unsigned)COGL_FIXED_1 >> 12) - d1; + + x = ((v1*d2) + (v2*d1))/(COGL_FIXED_1 >> 12); + + if (sh > 0) + x = x << sh; + else if (sh < 0) + x = (x >> (1 + ~sh)); + + return x; +} + +/** + * cogl_sqrti: + * @x: integer value + * + * Very fast fixed point implementation of square root for integers. + * + * This function is at least 6x faster than clib sqrt() on x86, and (this is + * not a typo!) about 500x faster on ARM without FPU. It's error is < 5% + * for arguments < #COGL_SQRTI_ARG_5_PERCENT and < 10% for arguments < + * #COGL_SQRTI_ARG_10_PERCENT. The maximum argument that can be passed to + * this function is COGL_SQRTI_ARG_MAX. + * + * Return value: integer square root. + * + * + * Since: 0.2 + */ +gint +cogl_sqrti (gint number) +{ +#if defined __SSE2__ + /* The GCC built-in with SSE2 (sqrtsd) is up to twice as fast as + * the pure integer code below. It is also more accurate. + */ + return __builtin_sqrt (number); +#else + /* This is a fixed point implementation of the Quake III sqrt algorithm, + * described, for example, at + * http://www.codemaestro.com/reviews/review00000105.html + * + * While the original QIII is extremely fast, the use of floating division + * and multiplication makes it perform very on arm processors without FPU. + * + * The key to successfully replacing the floating point operations with + * fixed point is in the choice of the fixed point format. The QIII + * algorithm does not calculate the square root, but its reciprocal ('y' + * below), which is only at the end turned to the inverse value. In order + * for the algorithm to produce satisfactory results, the reciprocal value + * must be represented with sufficient precission; the 16.16 we use + * elsewhere in clutter is not good enough, and 10.22 is used instead. + */ + CoglFixed x; + guint32 y_1; /* 10.22 fixed point */ + guint32 f = 0x600000; /* '1.5' as 10.22 fixed */ + + union + { + float f; + guint32 i; + } flt, flt2; + + flt.f = number; + + x = COGL_FIXED_FROM_INT (number) / 2; + + /* The QIII initial estimate */ + flt.i = 0x5f3759df - ( flt.i >> 1 ); + + /* Now, we convert the float to 10.22 fixed. We exploit the mechanism + * described at http://www.d6.com/users/checker/pdfs/gdmfp.pdf. + * + * We want 22 bit fraction; a single precission float uses 23 bit + * mantisa, so we only need to add 2^(23-22) (no need for the 1.5 + * multiplier as we are only dealing with positive numbers). + * + * Note: we have to use two separate variables here -- for some reason, + * if we try to use just the flt variable, gcc on ARM optimises the whole + * addition out, and it all goes pear shape, since without it, the bits + * in the float will not be correctly aligned. + */ + flt2.f = flt.f + 2.0; + flt2.i &= 0x7FFFFF; + + /* Now we correct the estimate */ + y_1 = (flt2.i >> 11) * (flt2.i >> 11); + y_1 = (y_1 >> 8) * (x >> 8); + + y_1 = f - y_1; + flt2.i = (flt2.i >> 11) * (y_1 >> 11); + + /* If the original argument is less than 342, we do another + * iteration to improve precission (for arguments >= 342, the single + * iteration produces generally better results). + */ + if (x < 171) + { + y_1 = (flt2.i >> 11) * (flt2.i >> 11); + y_1 = (y_1 >> 8) * (x >> 8); + + y_1 = f - y_1; + flt2.i = (flt2.i >> 11) * (y_1 >> 11); + } + + /* Invert, round and convert from 10.22 to an integer + * 0x1e3c68 is a magical rounding constant that produces slightly + * better results than 0x200000. + */ + return (number * flt2.i + 0x1e3c68) >> 22; +#endif +} + +CoglFixed +cogl_fixed_mul (CoglFixed a, + CoglFixed b) +{ +#ifdef __arm__ + /* This provides about 12% speedeup on the gcc -O2 optimised + * C version + * + * Based on code found in the following thread: + * http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2006-August/014405.html + */ + int res_low, res_hi; + + __asm__ ("smull %0, %1, %2, %3 \n" + "mov %0, %0, lsr %4 \n" + "add %1, %0, %1, lsl %5 \n" + : "=r"(res_hi), "=r"(res_low) \ + : "r"(a), "r"(b), "i"(COGL_FIXED_Q), "i"(32 - COGL_FIXED_Q)); + + return (CoglFixed) res_low; +#else + gint64 r = (gint64) a * (gint64) b; + + return (CoglFixed) (r >> COGL_FIXED_Q); +#endif +} + +CoglFixed +cogl_fixed_div (CoglFixed a, + CoglFixed b) +{ + return (CoglFixed) ((((gint64) a) << COGL_FIXED_Q) / b); +} + +CoglFixed +cogl_fixed_mul_div (CoglFixed a, + CoglFixed b, + CoglFixed c) +{ + CoglFixed ab = cogl_fixed_mul (a, b); + CoglFixed quo = cogl_fixed_div (ab, c); + + return quo; +} + +/* + * The log2x() and pow2x() functions + * + * The implementation of the log2x() and pow2x() exploits the + * well-documented fact that the exponent part of IEEE floating + * number provides a good estimate of log2 of that number, while + * the mantissa serves as a good error-correction. + * + * The implementation here uses a quadratic error correction as + * described by Ian Stephenson at: + * http://www.dctsystems.co.uk/Software/power.html. + */ + +CoglFixed +cogl_fixed_log2 (guint x) +{ + /* Note: we could easily have a version for CoglFixed x, but the int + * precision is enough for the current purposes. + */ + union + { + float f; + CoglFixed i; + } flt; + + CoglFixed magic = 0x58bb; + CoglFixed y; + + /* + * Convert x to float, then extract exponent. + * + * We want the result to be 16.16 fixed, so we shift (23-16) bits only + */ + flt.f = x; + flt.i >>= 7; + flt.i -= COGL_FIXED_FROM_INT (127); + + y = COGL_FIXED_FRACTION (flt.i); + + y = COGL_FIXED_MUL ((y - COGL_FIXED_MUL (y, y)), magic); + + return flt.i + y; +} + +guint +cogl_fixed_pow2 (CoglFixed x) +{ + /* Note: we could easily have a version that produces CoglFixed result, + * but the the range would be limited to x < 15, and the int precision + * is enough for the current purposes. + */ + + union + { + float f; + guint32 i; + } flt; + + CoglFixed magic = 0x56f7; + CoglFixed y; + + flt.i = x; + + /* + * Reverse of the log2x function -- convert the fixed value to a suitable + * floating point exponent, and mantisa adjusted with quadratic error + * correction y. + */ + y = COGL_FIXED_FRACTION (x); + y = COGL_FIXED_MUL ((y - COGL_FIXED_MUL (y, y)), magic); + + /* Shift the exponent into it's position in the floating point + * representation; as our number is not int but 16.16 fixed, shift only + * by (23 - 16) + */ + flt.i += (COGL_FIXED_FROM_INT (127) - y); + flt.i <<= 7; + + return COGL_FLOAT_TO_UINT (flt.f); +} + +guint +cogl_fixed_pow (guint x, + CoglFixed y) +{ + return cogl_fixed_pow2 (COGL_FIXED_MUL (y, cogl_fixed_log2 (x))); +} + +CoglFixed +cogl_angle_cos (CoglAngle angle) +{ + CoglAngle a = angle + 256; + + return cogl_angle_sin (a); +} + +CoglFixed +cogl_fixed_cos (CoglFixed angle) +{ + CoglFixed a = angle + COGL_FIXED_PI_2; + + return cogl_fixed_sin (a); +} diff --git a/common/cogl-primitives.c b/common/cogl-primitives.c index 3adc7d2b1..38499e6fc 100644 --- a/common/cogl-primitives.c +++ b/common/cogl-primitives.c @@ -38,18 +38,18 @@ /* these are defined in the particular backend(float in gl vs fixed in gles)*/ void _cogl_path_clear_nodes (); -void _cogl_path_add_node (ClutterFixed x, - ClutterFixed y); +void _cogl_path_add_node (CoglFixed x, + CoglFixed y); void _cogl_path_fill_nodes (); void _cogl_path_stroke_nodes (); void _cogl_rectangle (gint x, gint y, guint width, guint height); -void _cogl_rectanglex (ClutterFixed x, - ClutterFixed y, - ClutterFixed width, - ClutterFixed height); +void _cogl_rectanglex (CoglFixed x, + CoglFixed y, + CoglFixed width, + CoglFixed height); void cogl_rectangle (gint x, gint y, @@ -60,10 +60,10 @@ cogl_rectangle (gint x, } void -cogl_rectanglex (ClutterFixed x, - ClutterFixed y, - ClutterFixed width, - ClutterFixed height) +cogl_rectanglex (CoglFixed x, + CoglFixed y, + CoglFixed width, + CoglFixed height) { _cogl_rectanglex (x, y, width, height); } @@ -92,8 +92,8 @@ cogl_path_stroke (void) } void -cogl_path_move_to (ClutterFixed x, - ClutterFixed y) +cogl_path_move_to (CoglFixed x, + CoglFixed y) { _COGL_GET_CONTEXT (ctx, NO_RETVAL); @@ -112,8 +112,8 @@ cogl_path_move_to (ClutterFixed x, } void -cogl_path_rel_move_to (ClutterFixed x, - ClutterFixed y) +cogl_path_rel_move_to (CoglFixed x, + CoglFixed y) { _COGL_GET_CONTEXT (ctx, NO_RETVAL); @@ -122,8 +122,8 @@ cogl_path_rel_move_to (ClutterFixed x, } void -cogl_path_line_to (ClutterFixed x, - ClutterFixed y) +cogl_path_line_to (CoglFixed x, + CoglFixed y) { _COGL_GET_CONTEXT (ctx, NO_RETVAL); @@ -134,8 +134,8 @@ cogl_path_line_to (ClutterFixed x, } void -cogl_path_rel_line_to (ClutterFixed x, - ClutterFixed y) +cogl_path_rel_line_to (CoglFixed x, + CoglFixed y) { _COGL_GET_CONTEXT (ctx, NO_RETVAL); @@ -154,17 +154,17 @@ cogl_path_close (void) void -cogl_path_line (ClutterFixed x1, - ClutterFixed y1, - ClutterFixed x2, - ClutterFixed y2) +cogl_path_line (CoglFixed x1, + CoglFixed y1, + CoglFixed x2, + CoglFixed y2) { cogl_path_move_to (x1, y1); cogl_path_line_to (x2, y2); } void -cogl_path_polyline (ClutterFixed *coords, +cogl_path_polyline (CoglFixed *coords, gint num_points) { gint c = 0; @@ -176,7 +176,7 @@ cogl_path_polyline (ClutterFixed *coords, } void -cogl_path_polygon (ClutterFixed *coords, +cogl_path_polygon (CoglFixed *coords, gint num_points) { cogl_path_polyline (coords, num_points); @@ -184,10 +184,10 @@ cogl_path_polygon (ClutterFixed *coords, } void -cogl_path_rectangle (ClutterFixed x, - ClutterFixed y, - ClutterFixed width, - ClutterFixed height) +cogl_path_rectangle (CoglFixed x, + CoglFixed y, + CoglFixed width, + CoglFixed height) { cogl_path_move_to (x, y); cogl_path_line_to (x + width, y); @@ -197,20 +197,20 @@ cogl_path_rectangle (ClutterFixed x, } static void -_cogl_path_arc (ClutterFixed center_x, - ClutterFixed center_y, - ClutterFixed radius_x, - ClutterFixed radius_y, - ClutterAngle angle_1, - ClutterAngle angle_2, - ClutterAngle angle_step, +_cogl_path_arc (CoglFixed center_x, + CoglFixed center_y, + CoglFixed radius_x, + CoglFixed radius_y, + CoglAngle angle_1, + CoglAngle angle_2, + CoglAngle angle_step, guint move_first) { - ClutterAngle a = 0x0; - ClutterFixed cosa = 0x0; - ClutterFixed sina = 0x0; - ClutterFixed px = 0x0; - ClutterFixed py = 0x0; + CoglAngle a = 0x0; + CoglFixed cosa = 0x0; + CoglFixed sina = 0x0; + CoglFixed px = 0x0; + CoglFixed py = 0x0; /* Fix invalid angles */ @@ -225,11 +225,11 @@ _cogl_path_arc (ClutterFixed center_x, a = angle_1; while (a != angle_2) { - cosa = clutter_cosi (a); - sina = clutter_sini (a); + cosa = cogl_angle_cos (a); + sina = cogl_angle_sin (a); - px = center_x + CFX_MUL (cosa, radius_x); - py = center_y + CFX_MUL (sina, radius_y); + px = center_x + COGL_FIXED_MUL (cosa, radius_x); + py = center_y + COGL_FIXED_MUL (sina, radius_y); if (a == angle_1 && move_first) cogl_path_move_to (px, py); @@ -252,24 +252,24 @@ _cogl_path_arc (ClutterFixed center_x, /* Make sure the final point is drawn */ - cosa = clutter_cosi (angle_2); - sina = clutter_sini (angle_2); + cosa = cogl_angle_cos (angle_2); + sina = cogl_angle_sin (angle_2); - px = center_x + CFX_MUL (cosa, radius_x); - py = center_y + CFX_MUL (sina, radius_y); + px = center_x + COGL_FIXED_MUL (cosa, radius_x); + py = center_y + COGL_FIXED_MUL (sina, radius_y); cogl_path_line_to (px, py); } void -cogl_path_arc (ClutterFixed center_x, - ClutterFixed center_y, - ClutterFixed radius_x, - ClutterFixed radius_y, - ClutterAngle angle_1, - ClutterAngle angle_2) +cogl_path_arc (CoglFixed center_x, + CoglFixed center_y, + CoglFixed radius_x, + CoglFixed radius_y, + CoglAngle angle_1, + CoglAngle angle_2) { - ClutterAngle angle_step = 10; + CoglAngle angle_step = 10; /* it is documented that a move to is needed to create a freestanding * arc */ @@ -281,13 +281,13 @@ cogl_path_arc (ClutterFixed center_x, void -cogl_path_arc_rel (ClutterFixed center_x, - ClutterFixed center_y, - ClutterFixed radius_x, - ClutterFixed radius_y, - ClutterAngle angle_1, - ClutterAngle angle_2, - ClutterAngle angle_step) +cogl_path_arc_rel (CoglFixed center_x, + CoglFixed center_y, + CoglFixed radius_x, + CoglFixed radius_y, + CoglAngle angle_1, + CoglAngle angle_2, + CoglAngle angle_step) { _COGL_GET_CONTEXT (ctx, NO_RETVAL); @@ -299,50 +299,50 @@ cogl_path_arc_rel (ClutterFixed center_x, } void -cogl_path_ellipse (ClutterFixed center_x, - ClutterFixed center_y, - ClutterFixed radius_x, - ClutterFixed radius_y) +cogl_path_ellipse (CoglFixed center_x, + CoglFixed center_y, + CoglFixed radius_x, + CoglFixed radius_y) { - ClutterAngle angle_step = 10; + CoglAngle angle_step = 10; /* FIXME: if shows to be slow might be optimized * by mirroring just a quarter of it */ _cogl_path_arc (center_x, center_y, radius_x, radius_y, - 0, CLUTTER_ANGLE_FROM_DEG(360), + 0, COGL_ANGLE_FROM_DEG (360), angle_step, 1 /* move first */); cogl_path_close(); } void -cogl_path_round_rectangle (ClutterFixed x, - ClutterFixed y, - ClutterFixed width, - ClutterFixed height, - ClutterFixed radius, - ClutterAngle arc_step) +cogl_path_round_rectangle (CoglFixed x, + CoglFixed y, + CoglFixed width, + CoglFixed height, + CoglFixed radius, + CoglAngle arc_step) { - ClutterFixed inner_width = width - (radius << 1); - ClutterFixed inner_height = height - (radius << 1); + CoglFixed inner_width = width - (radius << 1); + CoglFixed inner_height = height - (radius << 1); _COGL_GET_CONTEXT (ctx, NO_RETVAL); cogl_path_move_to (x, y + radius); cogl_path_arc_rel (radius, 0, radius, radius, - CLUTTER_ANGLE_FROM_DEG (180), - CLUTTER_ANGLE_FROM_DEG (270), + COGL_ANGLE_FROM_DEG (180), + COGL_ANGLE_FROM_DEG (270), arc_step); cogl_path_line_to (ctx->path_pen.x + inner_width, ctx->path_pen.y); cogl_path_arc_rel (0, radius, radius, radius, - CLUTTER_ANGLE_FROM_DEG (-90), - CLUTTER_ANGLE_FROM_DEG (0), + COGL_ANGLE_FROM_DEG (-90), + COGL_ANGLE_FROM_DEG (0), arc_step); cogl_path_line_to (ctx->path_pen.x, @@ -350,16 +350,16 @@ cogl_path_round_rectangle (ClutterFixed x, cogl_path_arc_rel (-radius, 0, radius, radius, - CLUTTER_ANGLE_FROM_DEG (0), - CLUTTER_ANGLE_FROM_DEG (90), + COGL_ANGLE_FROM_DEG (0), + COGL_ANGLE_FROM_DEG (90), arc_step); cogl_path_line_to (ctx->path_pen.x - inner_width, ctx->path_pen.y); cogl_path_arc_rel (0, -radius, radius, radius, - CLUTTER_ANGLE_FROM_DEG (90), - CLUTTER_ANGLE_FROM_DEG (180), + COGL_ANGLE_FROM_DEG (90), + COGL_ANGLE_FROM_DEG (180), arc_step); cogl_path_close (); @@ -393,7 +393,7 @@ _cogl_path_bezier3_sub (CoglBezCubic *cubic) #define CFX_MUL2(x) ((x) << 1) #define CFX_MUL3(x) (((x) << 1) + (x)) -#define CFX_SQ(x) CFX_MUL (x, x) +#define CFX_SQ(x) COGL_FIXED_MUL (x, x) /* Calculate distance of control points from their * counterparts on the line between end points */ @@ -401,10 +401,15 @@ _cogl_path_bezier3_sub (CoglBezCubic *cubic) dif1.y = CFX_MUL3 (c->p2.y) - CFX_MUL2 (c->p1.y) - c->p4.y; dif2.x = CFX_MUL3 (c->p3.x) - CFX_MUL2 (c->p4.x) - c->p1.x; dif2.y = CFX_MUL3 (c->p3.y) - CFX_MUL2 (c->p4.y) - c->p1.y; - if (dif1.x < 0) dif1.x = -dif1.x; - if (dif1.y < 0) dif1.y = -dif1.y; - if (dif2.x < 0) dif2.x = -dif2.x; - if (dif2.y < 0) dif2.y = -dif2.y; + + if (dif1.x < 0) + dif1.x = -dif1.x; + if (dif1.y < 0) + dif1.y = -dif1.y; + if (dif2.x < 0) + dif2.x = -dif2.x; + if (dif2.y < 0) + dif2.y = -dif2.y; #undef CFX_MUL2 #undef CFX_MUL3 @@ -415,13 +420,18 @@ _cogl_path_bezier3_sub (CoglBezCubic *cubic) if (dif1.y < dif2.y) dif1.y = dif2.y; /* Cancel if the curve is flat enough */ - if (dif1.x + dif1.y <= CFX_ONE - || cindex == _COGL_MAX_BEZ_RECURSE_DEPTH-1) + if (dif1.x + dif1.y <= COGL_FIXED_1 || + cindex == _COGL_MAX_BEZ_RECURSE_DEPTH-1) { /* Add subdivision point (skip last) */ - if (cindex == 0) return; + if (cindex == 0) + return; + _cogl_path_add_node (c->p4.x, c->p4.y); - --cindex; continue; + + --cindex; + + continue; } /* Left recursion goes on top of stack! */ @@ -458,12 +468,12 @@ _cogl_path_bezier3_sub (CoglBezCubic *cubic) } void -cogl_path_curve_to (ClutterFixed x1, - ClutterFixed y1, - ClutterFixed x2, - ClutterFixed y2, - ClutterFixed x3, - ClutterFixed y3) +cogl_path_curve_to (CoglFixed x1, + CoglFixed y1, + CoglFixed x2, + CoglFixed y2, + CoglFixed x3, + CoglFixed y3) { CoglBezCubic cubic; @@ -487,12 +497,12 @@ cogl_path_curve_to (ClutterFixed x1, } void -cogl_path_rel_curve_to (ClutterFixed x1, - ClutterFixed y1, - ClutterFixed x2, - ClutterFixed y2, - ClutterFixed x3, - ClutterFixed y3) +cogl_path_rel_curve_to (CoglFixed x1, + CoglFixed y1, + CoglFixed x2, + CoglFixed y2, + CoglFixed x3, + CoglFixed y3) { _COGL_GET_CONTEXT (ctx, NO_RETVAL); @@ -544,8 +554,8 @@ _cogl_path_bezier2_sub (CoglBezQuad *quad) if (dif.y < 0) dif.y = -dif.y; /* Cancel if the curve is flat enough */ - if (dif.x + dif.y <= CFX_ONE - || qindex == _COGL_MAX_BEZ_RECURSE_DEPTH - 1) + if (dif.x + dif.y <= COGL_FIXED_1 || + qindex == _COGL_MAX_BEZ_RECURSE_DEPTH - 1) { /* Add subdivision point (skip last) */ if (qindex == 0) return; @@ -577,10 +587,10 @@ _cogl_path_bezier2_sub (CoglBezQuad *quad) } void -cogl_path_curve2_to (ClutterFixed x1, - ClutterFixed y1, - ClutterFixed x2, - ClutterFixed y2) +cogl_path_curve2_to (CoglFixed x1, + CoglFixed y1, + CoglFixed x2, + CoglFixed y2) { _COGL_GET_CONTEXT (ctx, NO_RETVAL); @@ -602,10 +612,10 @@ cogl_path_curve2_to (ClutterFixed x1, } void -cogl_rel_curve2_to (ClutterFixed x1, - ClutterFixed y1, - ClutterFixed x2, - ClutterFixed y2) +cogl_rel_curve2_to (CoglFixed x1, + CoglFixed y1, + CoglFixed x2, + CoglFixed y2) { _COGL_GET_CONTEXT (ctx, NO_RETVAL); diff --git a/common/cogl-primitives.h b/common/cogl-primitives.h index 376aefd85..f2d3ed173 100644 --- a/common/cogl-primitives.h +++ b/common/cogl-primitives.h @@ -32,8 +32,8 @@ typedef struct _CoglBezCubic CoglBezCubic; struct _CoglFixedVec2 { - ClutterFixed x; - ClutterFixed y; + CoglFixed x; + CoglFixed y; }; #ifdef CLUTTER_COGL_HAS_GL diff --git a/doc/reference/cogl/cogl-docs.sgml b/doc/reference/cogl/cogl-docs.sgml index 469137e62..23a341d25 100644 --- a/doc/reference/cogl/cogl-docs.sgml +++ b/doc/reference/cogl/cogl-docs.sgml @@ -58,6 +58,7 @@ + diff --git a/doc/reference/cogl/cogl-sections.txt b/doc/reference/cogl/cogl-sections.txt index c7c751f9b..7c6a14ba3 100644 --- a/doc/reference/cogl/cogl-sections.txt +++ b/doc/reference/cogl/cogl-sections.txt @@ -146,3 +146,88 @@ cogl_offscreen_blit cogl_offscreen_blit_region cogl_draw_buffer + +
+cogl-fixed +Fixed Point API +CoglFixed +COGL_FIXED_BITS +COGL_FIXED_Q +COGL_FIXED_MAX +COGL_FIXED_MIN + + +COGL_FIXED_FROM_FLOAT +COGL_FIXED_TO_FLOAT +COGL_FIXED_FROM_INT +COGL_FIXED_TO_INT +COGL_FIXED_TO_DOUBLE +COGL_FLOAT_TO_INT +COGL_FLOAT_TO_UINT + + +COGL_FIXED_EPSILON +COGL_FIXED_1 +COGL_FIXED_0_5 +COGL_FIXED_30 +COGL_FIXED_45 +COGL_FIXED_60 +COGL_FIXED_90 +COGL_FIXED_120 +COGL_FIXED_180 +COGL_FIXED_240 +COGL_FIXED_255 +COGL_FIXED_270 +COGL_FIXED_360 + + +COGL_FIXED_MUL +COGL_FIXED_DIV +COGL_FIXED_MUL_DIV +COGL_FIXED_FAST_DIV +COGL_FIXED_FAST_MUL +COGL_FIXED_FRACTION +COGL_FIXED_FLOOR +COGL_FIXED_CEIL + + +COGL_FIXED_2_PI +COGL_FIXED_PI +COGL_FIXED_PI_2 +COGL_FIXED_PI_4 +COGL_RADIANS_TO_DEGREES + + +COGL_SQRTI_ARG_10_PERCENT +COGL_SQRTI_ARG_5_PERCENT +COGL_SQRTI_ARG_MAX +cogl_sqrti + + +cogl_fixed_atan2 +cogl_fixed_atani +cogl_fixed_cos +cogl_fixed_log2 +cogl_fixed_pow +cogl_fixed_pow2 +cogl_fixed_sin +cogl_fixed_sqrt + + +CoglAngle +COGL_ANGLE_FROM_DEG +COGL_ANGLE_FROM_DEGX +COGL_ANGLE_TO_DEG +COGL_ANGLE_TO_DEGX +cogl_angle_cos +cogl_angle_sin +cogl_angle_tan + + +cogl_fixed_mul +cogl_fixed_div +cogl_fixed_mul_div +cogl_double_to_fixed +cogl_double_to_int +cogl_double_to_unit +
diff --git a/gl/Makefile.am b/gl/Makefile.am index 0c3f84c33..083f78ae4 100644 --- a/gl/Makefile.am +++ b/gl/Makefile.am @@ -1,6 +1,8 @@ libclutterincludedir = $(includedir)/clutter-@CLUTTER_API_VERSION@/cogl -libclutterinclude_HEADERS = $(top_builddir)/clutter/cogl/cogl.h \ - $(top_builddir)/clutter/cogl/cogl-defines-gl.h +libclutterinclude_HEADERS = \ + $(top_builddir)/clutter/cogl/cogl.h \ + $(top_builddir)/clutter/cogl/cogl-defines-gl.h \ + $(top_builddir)/clutter/cogl/cogl-fixed.h INCLUDES = \ -I$(top_srcdir) \ @@ -21,6 +23,7 @@ noinst_LTLIBRARIES = libclutter-cogl.la libclutter_cogl_la_SOURCES = \ $(top_builddir)/clutter/cogl/cogl.h \ $(top_builddir)/clutter/cogl/cogl-defines-gl.h \ + $(top_builddir)/clutter/cogl/cogl-fixed.h \ cogl-internal.h \ cogl-texture.h \ cogl-fbo.h \ @@ -37,4 +40,4 @@ libclutter_cogl_la_SOURCES = \ EXTRA_DIST = cogl-defines.h.in -libclutter_cogl_la_LIBADD = $(top_builddir)/clutter/cogl/common/libclutter-cogl-common.la +libclutter_cogl_la_LIBADD = $(top_builddir)/clutter/cogl/common/libclutter-cogl-common.la diff --git a/gl/cogl-primitives.c b/gl/cogl-primitives.c index b2659f4fb..950a46106 100644 --- a/gl/cogl-primitives.c +++ b/gl/cogl-primitives.c @@ -53,20 +53,20 @@ _cogl_rectangle (gint x, void -_cogl_rectanglex (ClutterFixed x, - ClutterFixed y, - ClutterFixed width, - ClutterFixed height) +_cogl_rectanglex (CoglFixed x, + CoglFixed y, + CoglFixed width, + CoglFixed height) { _COGL_GET_CONTEXT (ctx, NO_RETVAL); cogl_enable (ctx->color_alpha < 255 ? COGL_ENABLE_BLEND : 0); - GE( glRectf (CLUTTER_FIXED_TO_FLOAT (x), - CLUTTER_FIXED_TO_FLOAT (y), - CLUTTER_FIXED_TO_FLOAT (x + width), - CLUTTER_FIXED_TO_FLOAT (y + height)) ); + GE( glRectf (COGL_FIXED_TO_FLOAT (x), + COGL_FIXED_TO_FLOAT (y), + COGL_FIXED_TO_FLOAT (x + width), + COGL_FIXED_TO_FLOAT (y + height)) ); } void @@ -83,8 +83,8 @@ _cogl_path_clear_nodes () } void -_cogl_path_add_node (ClutterFixed x, - ClutterFixed y) +_cogl_path_add_node (CoglFixed x, + CoglFixed y) { CoglFloatVec2 *new_nodes = NULL; @@ -102,8 +102,8 @@ _cogl_path_add_node (ClutterFixed x, ctx->path_nodes_cap *= 2; } - ctx->path_nodes [ctx->path_nodes_size] .x = CLUTTER_FIXED_TO_FLOAT (x); - ctx->path_nodes [ctx->path_nodes_size] .y = CLUTTER_FIXED_TO_FLOAT (y); + ctx->path_nodes [ctx->path_nodes_size] .x = COGL_FIXED_TO_FLOAT (x); + ctx->path_nodes [ctx->path_nodes_size] .y = COGL_FIXED_TO_FLOAT (y); ctx->path_nodes_size++; if (ctx->path_nodes_size == 1) @@ -165,10 +165,10 @@ _cogl_path_fill_nodes () GE( glStencilFunc (GL_EQUAL, 0x1, 0x1) ); GE( glStencilOp (GL_KEEP, GL_KEEP, GL_KEEP) ); - bounds_x = CLUTTER_FIXED_FLOOR (ctx->path_nodes_min.x); - bounds_y = CLUTTER_FIXED_FLOOR (ctx->path_nodes_min.y); - bounds_w = CLUTTER_FIXED_CEIL (ctx->path_nodes_max.x - ctx->path_nodes_min.x); - bounds_h = CLUTTER_FIXED_CEIL (ctx->path_nodes_max.y - ctx->path_nodes_min.y); + bounds_x = COGL_FIXED_FLOOR (ctx->path_nodes_min.x); + bounds_y = COGL_FIXED_FLOOR (ctx->path_nodes_min.y); + bounds_w = COGL_FIXED_CEIL (ctx->path_nodes_max.x - ctx->path_nodes_min.x); + bounds_h = COGL_FIXED_CEIL (ctx->path_nodes_max.y - ctx->path_nodes_min.y); cogl_rectangle (bounds_x, bounds_y, bounds_w, bounds_h); diff --git a/gl/cogl-texture.c b/gl/cogl-texture.c index 11f91cfe6..77308acfc 100644 --- a/gl/cogl-texture.c +++ b/gl/cogl-texture.c @@ -58,15 +58,15 @@ struct _CoglSpanIter gint index; GArray *array; CoglTexSliceSpan *span; - ClutterFixed pos; - ClutterFixed next_pos; - ClutterFixed origin; - ClutterFixed cover_start; - ClutterFixed cover_end; - ClutterFixed intersect_start; - ClutterFixed intersect_end; - ClutterFixed intersect_start_local; - ClutterFixed intersect_end_local; + CoglFixed pos; + CoglFixed next_pos; + CoglFixed origin; + CoglFixed cover_start; + CoglFixed cover_end; + CoglFixed intersect_start; + CoglFixed intersect_end; + CoglFixed intersect_start_local; + CoglFixed intersect_end_local; gboolean intersects; }; @@ -100,8 +100,8 @@ _cogl_span_iter_update (CoglSpanIter *iter) iter->index); /* Offset next position by span size */ - iter->next_pos = iter->pos + - CLUTTER_INT_TO_FIXED (iter->span->size - iter->span->waste); + iter->next_pos = iter->pos + + COGL_FIXED_FROM_INT (iter->span->size - iter->span->waste); /* Check if span intersects the area to cover */ if (iter->next_pos <= iter->cover_start || @@ -130,9 +130,9 @@ _cogl_span_iter_update (CoglSpanIter *iter) static void _cogl_span_iter_begin (CoglSpanIter *iter, GArray *array, - ClutterFixed origin, - ClutterFixed cover_start, - ClutterFixed cover_end) + CoglFixed origin, + CoglFixed cover_start, + CoglFixed cover_end) { /* Copy info */ iter->index = 0; @@ -493,8 +493,8 @@ _cogl_texture_upload_subregion_to_gl (CoglTexture *tex, /* Iterate vertical spans */ for (source_y = src_y, _cogl_span_iter_begin (&y_iter, tex->slice_y_spans, - 0, CLUTTER_INT_TO_FIXED (dst_y), - CLUTTER_INT_TO_FIXED (dst_y + height)); + 0, COGL_FIXED_FROM_INT (dst_y), + COGL_FIXED_FROM_INT (dst_y + height)); !_cogl_span_iter_end (&y_iter); @@ -514,8 +514,8 @@ _cogl_texture_upload_subregion_to_gl (CoglTexture *tex, /* Iterate horizontal spans */ for (source_x = src_x, _cogl_span_iter_begin (&x_iter, tex->slice_x_spans, - 0, CLUTTER_INT_TO_FIXED (dst_x), - CLUTTER_INT_TO_FIXED (dst_x + width)); + 0, COGL_FIXED_FROM_INT (dst_x), + COGL_FIXED_FROM_INT (dst_x + width)); !_cogl_span_iter_end (&x_iter); @@ -533,16 +533,16 @@ _cogl_texture_upload_subregion_to_gl (CoglTexture *tex, x_iter.index); /* Pick intersection width and height */ - inter_w = CLUTTER_FIXED_TO_INT (x_iter.intersect_end - - x_iter.intersect_start); - inter_h = CLUTTER_FIXED_TO_INT (y_iter.intersect_end - - y_iter.intersect_start); + inter_w = COGL_FIXED_TO_INT (x_iter.intersect_end - + x_iter.intersect_start); + inter_h = COGL_FIXED_TO_INT (y_iter.intersect_end - + y_iter.intersect_start); /* Localize intersection top-left corner to slice*/ - local_x = CLUTTER_FIXED_TO_INT (x_iter.intersect_start - - x_iter.pos); - local_y = CLUTTER_FIXED_TO_INT (y_iter.intersect_start - - y_iter.pos); + local_x = COGL_FIXED_TO_INT (x_iter.intersect_start - + x_iter.pos); + local_y = COGL_FIXED_TO_INT (y_iter.intersect_start - + y_iter.pos); /* Pick slice GL handle */ gl_handle = g_array_index (tex->slice_gl_handles, GLuint, @@ -575,14 +575,20 @@ _cogl_texture_upload_subregion_to_gl (CoglTexture *tex, && local_x < x_span->size - x_span->waste && local_x + inter_w >= x_span->size - x_span->waste) { - const guchar *src = source_bmp->data - + (src_y + CLUTTER_FIXED_TO_INT (y_iter.intersect_start) - - dst_y) * source_bmp->rowstride - + (src_x + x_span->start + x_span->size - x_span->waste - - dst_x - 1) * bpp; - guchar *dst = waste_buf; + const guchar *src; + guchar *dst; guint wx, wy; + src = source_bmp->data + + (src_y + COGL_FIXED_TO_INT (y_iter.intersect_start) + - dst_y) + * source_bmp->rowstride + + (src_x + x_span->start + x_span->size - x_span->waste + - dst_x - 1) + * bpp; + + dst = waste_buf; + for (wy = 0; wy < inter_h; wy++) { for (wx = 0; wx < x_span->waste; wx++) @@ -612,15 +618,21 @@ _cogl_texture_upload_subregion_to_gl (CoglTexture *tex, && local_y < y_span->size - y_span->waste && local_y + inter_h >= y_span->size - y_span->waste) { - const guchar *src = source_bmp->data - + (src_x + CLUTTER_FIXED_TO_INT (x_iter.intersect_start) - - dst_x) * bpp - + (src_y + y_span->start + y_span->size - y_span->waste - - dst_y - 1) * source_bmp->rowstride; - guchar *dst = waste_buf; + const guchar *src; + guchar *dst; guint wy, wx; guint copy_width; + src = source_bmp->data + + (src_x + COGL_FIXED_TO_INT (x_iter.intersect_start) + - dst_x) + * bpp + + (src_y + y_span->start + y_span->size - y_span->waste + - dst_y - 1) + * source_bmp->rowstride; + + dst = waste_buf; + if (local_x + inter_w >= x_span->size - x_span->waste) copy_width = x_span->size - local_x; else @@ -1914,24 +1926,24 @@ cogl_texture_get_data (CoglHandle handle, static void _cogl_texture_quad_sw (CoglTexture *tex, - ClutterFixed x1, - ClutterFixed y1, - ClutterFixed x2, - ClutterFixed y2, - ClutterFixed tx1, - ClutterFixed ty1, - ClutterFixed tx2, - ClutterFixed ty2) + CoglFixed x1, + CoglFixed y1, + CoglFixed x2, + CoglFixed y2, + CoglFixed tx1, + CoglFixed ty1, + CoglFixed tx2, + CoglFixed ty2) { CoglSpanIter iter_x , iter_y; - ClutterFixed tw , th; - ClutterFixed tqx , tqy; - ClutterFixed first_tx , first_ty; - ClutterFixed first_qx , first_qy; - ClutterFixed slice_tx1 , slice_ty1; - ClutterFixed slice_tx2 , slice_ty2; - ClutterFixed slice_qx1 , slice_qy1; - ClutterFixed slice_qx2 , slice_qy2; + CoglFixed tw , th; + CoglFixed tqx , tqy; + CoglFixed first_tx , first_ty; + CoglFixed first_qx , first_qy; + CoglFixed slice_tx1 , slice_ty1; + CoglFixed slice_tx2 , slice_ty2; + CoglFixed slice_qx1 , slice_qy1; + CoglFixed slice_qx2 , slice_qy2; GLuint gl_handle; gulong enable_flags = 0; @@ -1956,27 +1968,27 @@ _cogl_texture_quad_sw (CoglTexture *tex, cogl_enable (enable_flags); /* Scale ratio from texture to quad widths */ - tw = CLUTTER_INT_TO_FIXED (tex->bitmap.width); - th = CLUTTER_INT_TO_FIXED (tex->bitmap.height); + tw = COGL_FIXED_FROM_INT (tex->bitmap.width); + th = COGL_FIXED_FROM_INT (tex->bitmap.height); - tqx = CFX_QDIV (x2-x1, CFX_QMUL (tw, (tx2 - tx1))); - tqy = CFX_QDIV (y2-y1, CFX_QMUL (th, (ty2 - ty1))); + tqx = COGL_FIXED_DIV (x2 - x1, COGL_FIXED_MUL (tw, (tx2 - tx1))); + tqy = COGL_FIXED_DIV (y2 - y1, COGL_FIXED_MUL (th, (ty2 - ty1))); /* Integral texture coordinate for first tile */ - first_tx = CLUTTER_INT_TO_FIXED (CLUTTER_FIXED_FLOOR (tx1)); - first_ty = CLUTTER_INT_TO_FIXED (CLUTTER_FIXED_FLOOR (ty1)); + first_tx = COGL_FIXED_FROM_INT (COGL_FIXED_FLOOR (tx1)); + first_ty = COGL_FIXED_FROM_INT (COGL_FIXED_FLOOR (ty1)); /* Denormalize texture coordinates */ - first_tx = CFX_QMUL (first_tx, tw); - first_ty = CFX_QMUL (first_ty, th); - tx1 = CFX_QMUL (tx1, tw); - ty1 = CFX_QMUL (ty1, th); - tx2 = CFX_QMUL (tx2, tw); - ty2 = CFX_QMUL (ty2, th); + first_tx = COGL_FIXED_MUL (first_tx, tw); + first_ty = COGL_FIXED_MUL (first_ty, th); + tx1 = COGL_FIXED_MUL (tx1, tw); + ty1 = COGL_FIXED_MUL (ty1, th); + tx2 = COGL_FIXED_MUL (tx2, tw); + ty2 = COGL_FIXED_MUL (ty2, th); /* Quad coordinate of the first tile */ - first_qx = x1 - CFX_QMUL (tx1 - first_tx, tqx); - first_qy = y1 - CFX_QMUL (ty1 - first_ty, tqy); + first_qx = x1 - COGL_FIXED_MUL (tx1 - first_tx, tqx); + first_qy = y1 - COGL_FIXED_MUL (ty1 - first_ty, tqy); /* Iterate until whole quad height covered */ @@ -1990,10 +2002,10 @@ _cogl_texture_quad_sw (CoglTexture *tex, /* Span-quad intersection in quad coordinates */ slice_qy1 = first_qy + - CFX_QMUL (iter_y.intersect_start - first_ty, tqy); + COGL_FIXED_MUL (iter_y.intersect_start - first_ty, tqy); slice_qy2 = first_qy + - CFX_QMUL (iter_y.intersect_end - first_ty, tqy); + COGL_FIXED_MUL (iter_y.intersect_end - first_ty, tqy); /* Localize slice texture coordinates */ slice_ty1 = iter_y.intersect_start - iter_y.pos; @@ -2016,10 +2028,10 @@ _cogl_texture_quad_sw (CoglTexture *tex, /* Span-quad intersection in quad coordinates */ slice_qx1 = first_qx + - CFX_QMUL (iter_x.intersect_start - first_tx, tqx); + COGL_FIXED_MUL (iter_x.intersect_start - first_tx, tqx); slice_qx2 = first_qx + - CFX_QMUL (iter_x.intersect_end - first_tx, tqx); + COGL_FIXED_MUL (iter_x.intersect_end - first_tx, tqx); /* Localize slice texture coordinates */ slice_tx1 = iter_x.intersect_start - iter_x.pos; @@ -2032,14 +2044,14 @@ _cogl_texture_quad_sw (CoglTexture *tex, #if COGL_DEBUG printf("~~~~~ slice (%d,%d)\n", iter_x.index, iter_y.index); - printf("qx1: %f\n", CLUTTER_FIXED_TO_FLOAT (slice_qx1)); - printf("qy1: %f\n", CLUTTER_FIXED_TO_FLOAT (slice_qy1)); - printf("qx2: %f\n", CLUTTER_FIXED_TO_FLOAT (slice_qx2)); - printf("qy2: %f\n", CLUTTER_FIXED_TO_FLOAT (slice_qy2)); - printf("tx1: %f\n", CLUTTER_FIXED_TO_FLOAT (slice_tx1)); - printf("ty1: %f\n", CLUTTER_FIXED_TO_FLOAT (slice_ty1)); - printf("tx2: %f\n", CLUTTER_FIXED_TO_FLOAT (slice_tx2)); - printf("ty2: %f\n", CLUTTER_FIXED_TO_FLOAT (slice_ty2)); + printf("qx1: %f\n", COGL_FIXED_TO_FLOAT (slice_qx1)); + printf("qy1: %f\n", COGL_FIXED_TO_FLOAT (slice_qy1)); + printf("qx2: %f\n", COGL_FIXED_TO_FLOAT (slice_qx2)); + printf("qy2: %f\n", COGL_FIXED_TO_FLOAT (slice_qy2)); + printf("tx1: %f\n", COGL_FIXED_TO_FLOAT (slice_tx1)); + printf("ty1: %f\n", COGL_FIXED_TO_FLOAT (slice_ty1)); + printf("tx2: %f\n", COGL_FIXED_TO_FLOAT (slice_tx2)); + printf("ty2: %f\n", COGL_FIXED_TO_FLOAT (slice_ty2)); #endif /* Pick and bind opengl texture object */ @@ -2049,7 +2061,7 @@ _cogl_texture_quad_sw (CoglTexture *tex, GE( glBindTexture (tex->gl_target, gl_handle) ); -#define CFX_F CLUTTER_FIXED_TO_FLOAT +#define CFX_F COGL_FIXED_TO_FLOAT /* Draw textured quad */ glBegin (GL_QUADS); @@ -2075,14 +2087,14 @@ _cogl_texture_quad_sw (CoglTexture *tex, static void _cogl_texture_quad_hw (CoglTexture *tex, - ClutterFixed x1, - ClutterFixed y1, - ClutterFixed x2, - ClutterFixed y2, - ClutterFixed tx1, - ClutterFixed ty1, - ClutterFixed tx2, - ClutterFixed ty2) + CoglFixed x1, + CoglFixed y1, + CoglFixed x2, + CoglFixed y2, + CoglFixed tx1, + CoglFixed ty1, + CoglFixed tx2, + CoglFixed ty2) { CoglTexSliceSpan *x_span; CoglTexSliceSpan *y_span; @@ -2122,8 +2134,8 @@ _cogl_texture_quad_hw (CoglTexture *tex, ty1 = ty1 * (y_span->size - y_span->waste) / y_span->size; ty2 = ty2 * (y_span->size - y_span->waste) / y_span->size; -#define CFX_F(x) CLUTTER_FIXED_TO_FLOAT(x) - +#define CFX_F(x) COGL_FIXED_TO_FLOAT(x) + /* Draw textured quad */ glBegin (GL_QUADS); @@ -2146,17 +2158,17 @@ _cogl_texture_quad_hw (CoglTexture *tex, void cogl_texture_rectangle (CoglHandle handle, - ClutterFixed x1, - ClutterFixed y1, - ClutterFixed x2, - ClutterFixed y2, - ClutterFixed tx1, - ClutterFixed ty1, - ClutterFixed tx2, - ClutterFixed ty2) + CoglFixed x1, + CoglFixed y1, + CoglFixed x2, + CoglFixed y2, + CoglFixed tx1, + CoglFixed ty1, + CoglFixed tx2, + CoglFixed ty2) { CoglTexture *tex; - ClutterFixed tempx; + CoglFixed tempx; /* Check if valid texture */ if (!cogl_is_texture (handle)) @@ -2214,9 +2226,11 @@ cogl_texture_rectangle (CoglHandle handle, } else { - if (tex->slice_gl_handles->len == 1 - && tx1 >= -CFX_ONE && tx2 <= CFX_ONE - && ty1 >= -CFX_ONE && ty2 <= CFX_ONE) + if (tex->slice_gl_handles->len == 1 && + tx1 >= -COGL_FIXED_1 && + tx2 <= COGL_FIXED_1 && + ty1 >= -COGL_FIXED_1 && + ty2 <= COGL_FIXED_1) { _cogl_texture_quad_hw (tex, x1,y1, x2,y2, tx1,ty1, tx2,ty2); } @@ -2317,18 +2331,18 @@ cogl_texture_polygon (CoglHandle handle, /* Transform the texture co-ordinates so they are relative to the slice */ - tx = (CLUTTER_FIXED_TO_FLOAT (vertices[vnum].tx) + tx = (COGL_FIXED_TO_FLOAT (vertices[vnum].tx) - x_span->start / (GLfloat) tex->bitmap.width) * tex->bitmap.width / x_span->size; - ty = (CLUTTER_FIXED_TO_FLOAT (vertices[vnum].ty) + ty = (COGL_FIXED_TO_FLOAT (vertices[vnum].ty) - y_span->start / (GLfloat) tex->bitmap.height) * tex->bitmap.height / y_span->size; glTexCoord2f (tx, ty); - glVertex3f (CLUTTER_FIXED_TO_FLOAT (vertices[vnum].x), - CLUTTER_FIXED_TO_FLOAT (vertices[vnum].y), - CLUTTER_FIXED_TO_FLOAT (vertices[vnum].z)); + glVertex3f (COGL_FIXED_TO_FLOAT (vertices[vnum].x), + COGL_FIXED_TO_FLOAT (vertices[vnum].y), + COGL_FIXED_TO_FLOAT (vertices[vnum].z)); } GE( glEnd () ); diff --git a/gl/cogl.c b/gl/cogl.c index 567d292bc..b78035bbb 100644 --- a/gl/cogl.c +++ b/gl/cogl.c @@ -209,19 +209,19 @@ cogl_pop_matrix (void) } void -cogl_scale (ClutterFixed x, ClutterFixed y) +cogl_scale (CoglFixed x, CoglFixed y) { - glScaled (CLUTTER_FIXED_TO_DOUBLE (x), - CLUTTER_FIXED_TO_DOUBLE (y), + glScaled (COGL_FIXED_TO_DOUBLE (x), + COGL_FIXED_TO_DOUBLE (y), 1.0); } void -cogl_translatex (ClutterFixed x, ClutterFixed y, ClutterFixed z) +cogl_translatex (CoglFixed x, CoglFixed y, CoglFixed z) { - glTranslated (CLUTTER_FIXED_TO_DOUBLE (x), - CLUTTER_FIXED_TO_DOUBLE (y), - CLUTTER_FIXED_TO_DOUBLE (z)); + glTranslated (COGL_FIXED_TO_DOUBLE (x), + COGL_FIXED_TO_DOUBLE (y), + COGL_FIXED_TO_DOUBLE (z)); } void @@ -231,12 +231,12 @@ cogl_translate (gint x, gint y, gint z) } void -cogl_rotatex (ClutterFixed angle, gint x, gint y, gint z) +cogl_rotatex (CoglFixed angle, gint x, gint y, gint z) { - glRotated (CLUTTER_FIXED_TO_DOUBLE (angle), - CLUTTER_FIXED_TO_DOUBLE (x), - CLUTTER_FIXED_TO_DOUBLE (y), - CLUTTER_FIXED_TO_DOUBLE (z)); + glRotated (COGL_FIXED_TO_DOUBLE (angle), + COGL_FIXED_TO_DOUBLE (x), + COGL_FIXED_TO_DOUBLE (y), + COGL_FIXED_TO_DOUBLE (z)); } void @@ -459,24 +459,24 @@ set_clip_plane (GLint plane_num, } void -_cogl_set_clip_planes (ClutterFixed x_offset, - ClutterFixed y_offset, - ClutterFixed width, - ClutterFixed height) +_cogl_set_clip_planes (CoglFixed x_offset, + CoglFixed y_offset, + CoglFixed width, + CoglFixed height) { GLfloat modelview[16], projection[16]; - GLfloat vertex_tl[4] = { CLUTTER_FIXED_TO_FLOAT (x_offset), - CLUTTER_FIXED_TO_FLOAT (y_offset), + GLfloat vertex_tl[4] = { COGL_FIXED_TO_FLOAT (x_offset), + COGL_FIXED_TO_FLOAT (y_offset), 0.0f, 1.0f }; - GLfloat vertex_tr[4] = { CLUTTER_FIXED_TO_FLOAT (x_offset + width), - CLUTTER_FIXED_TO_FLOAT (y_offset), + GLfloat vertex_tr[4] = { COGL_FIXED_TO_FLOAT (x_offset + width), + COGL_FIXED_TO_FLOAT (y_offset), 0.0f, 1.0f }; - GLfloat vertex_bl[4] = { CLUTTER_FIXED_TO_FLOAT (x_offset), - CLUTTER_FIXED_TO_FLOAT (y_offset + height), + GLfloat vertex_bl[4] = { COGL_FIXED_TO_FLOAT (x_offset), + COGL_FIXED_TO_FLOAT (y_offset + height), 0.0f, 1.0f }; - GLfloat vertex_br[4] = { CLUTTER_FIXED_TO_FLOAT (x_offset + width), - CLUTTER_FIXED_TO_FLOAT (y_offset + height), + GLfloat vertex_br[4] = { COGL_FIXED_TO_FLOAT (x_offset + width), + COGL_FIXED_TO_FLOAT (y_offset + height), 0.0f, 1.0f }; GE( glGetFloatv (GL_MODELVIEW_MATRIX, modelview) ); @@ -520,10 +520,10 @@ compare_y_coordinate (const void *a, const void *b) } void -_cogl_add_stencil_clip (ClutterFixed x_offset, - ClutterFixed y_offset, - ClutterFixed width, - ClutterFixed height, +_cogl_add_stencil_clip (CoglFixed x_offset, + CoglFixed y_offset, + CoglFixed width, + CoglFixed height, gboolean first) { gboolean has_clip_planes @@ -550,10 +550,10 @@ _cogl_add_stencil_clip (ClutterFixed x_offset, /* Punch out a hole to allow the rectangle */ GE( glStencilFunc (GL_NEVER, 0x1, 0x1) ); GE( glStencilOp (GL_REPLACE, GL_REPLACE, GL_REPLACE) ); - GE( glRectf (CLUTTER_FIXED_TO_FLOAT (x_offset), - CLUTTER_FIXED_TO_FLOAT (y_offset), - CLUTTER_FIXED_TO_FLOAT (x_offset + width), - CLUTTER_FIXED_TO_FLOAT (y_offset + height)) ); + GE( glRectf (COGL_FIXED_TO_FLOAT (x_offset), + COGL_FIXED_TO_FLOAT (y_offset), + COGL_FIXED_TO_FLOAT (x_offset + width), + COGL_FIXED_TO_FLOAT (y_offset + height)) ); } else if (ctx->num_stencil_bits > 1) { @@ -561,10 +561,10 @@ _cogl_add_stencil_clip (ClutterFixed x_offset, rectangle */ GE( glStencilFunc (GL_NEVER, 0x1, 0x3) ); GE( glStencilOp (GL_INCR, GL_INCR, GL_INCR) ); - GE( glRectf (CLUTTER_FIXED_TO_FLOAT (x_offset), - CLUTTER_FIXED_TO_FLOAT (y_offset), - CLUTTER_FIXED_TO_FLOAT (x_offset + width), - CLUTTER_FIXED_TO_FLOAT (y_offset + height)) ); + GE( glRectf (COGL_FIXED_TO_FLOAT (x_offset), + COGL_FIXED_TO_FLOAT (y_offset), + COGL_FIXED_TO_FLOAT (x_offset + width), + COGL_FIXED_TO_FLOAT (y_offset + height)) ); /* Subtract one from all pixels in the stencil buffer so that only pixels where both the original stencil buffer and the @@ -592,17 +592,17 @@ _cogl_add_stencil_clip (ClutterFixed x_offset, int i; GLfloat points[16] = { - CLUTTER_FIXED_TO_FLOAT (x_offset), - CLUTTER_FIXED_TO_FLOAT (y_offset), + COGL_FIXED_TO_FLOAT (x_offset), + COGL_FIXED_TO_FLOAT (y_offset), 0, 1, - CLUTTER_FIXED_TO_FLOAT (x_offset + width), - CLUTTER_FIXED_TO_FLOAT (y_offset), + COGL_FIXED_TO_FLOAT (x_offset + width), + COGL_FIXED_TO_FLOAT (y_offset), 0, 1, - CLUTTER_FIXED_TO_FLOAT (x_offset), - CLUTTER_FIXED_TO_FLOAT (y_offset + height), + COGL_FIXED_TO_FLOAT (x_offset), + COGL_FIXED_TO_FLOAT (y_offset + height), 0, 1, - CLUTTER_FIXED_TO_FLOAT (x_offset + width), - CLUTTER_FIXED_TO_FLOAT (y_offset + height), + COGL_FIXED_TO_FLOAT (x_offset + width), + COGL_FIXED_TO_FLOAT (y_offset + height), 0, 1 }; @@ -708,13 +708,13 @@ _cogl_add_stencil_clip (ClutterFixed x_offset, } void -_cogl_set_matrix (const ClutterFixed *matrix) +_cogl_set_matrix (const CoglFixed *matrix) { float float_matrix[16]; int i; for (i = 0; i < 16; i++) - float_matrix[i] = CLUTTER_FIXED_TO_FLOAT (matrix[i]); + float_matrix[i] = COGL_FIXED_TO_FLOAT (matrix[i]); GE( glLoadIdentity () ); GE( glMultMatrixf (float_matrix) ); @@ -737,20 +737,20 @@ _cogl_disable_clip_planes (void) void cogl_alpha_func (COGLenum func, - ClutterFixed ref) + CoglFixed ref) { - GE( glAlphaFunc (func, CLUTTER_FIXED_TO_FLOAT(ref)) ); + GE( glAlphaFunc (func, COGL_FIXED_TO_FLOAT(ref)) ); } void -cogl_perspective (ClutterFixed fovy, - ClutterFixed aspect, - ClutterFixed zNear, - ClutterFixed zFar) +cogl_perspective (CoglFixed fovy, + CoglFixed aspect, + CoglFixed zNear, + CoglFixed zFar) { - ClutterFixed xmax, ymax; - ClutterFixed x, y, c, d; - ClutterFixed fovy_rad_half = CLUTTER_FIXED_MUL (fovy, CFX_PI) / 360; + CoglFixed xmax, ymax; + CoglFixed x, y, c, d; + CoglFixed fovy_rad_half = COGL_FIXED_MUL (fovy, COGL_FIXED_PI) / 360; GLfloat m[16]; @@ -768,22 +768,25 @@ cogl_perspective (ClutterFixed fovy, * same true for y, hence: a == 0 && b == 0; * * 2) When working with small numbers, we are loosing significant - * precision, hence we use clutter_qmulx() here, not the fast macro. + * precision */ - ymax = clutter_qmulx (zNear, CLUTTER_FIXED_DIV (clutter_sinx (fovy_rad_half), - clutter_cosx (fovy_rad_half))); - xmax = clutter_qmulx (ymax, aspect); + ymax = + COGL_FIXED_MUL (zNear, + COGL_FIXED_FAST_DIV (cogl_fixed_sin (fovy_rad_half), + cogl_fixed_cos (fovy_rad_half))); - x = CLUTTER_FIXED_DIV (zNear, xmax); - y = CLUTTER_FIXED_DIV (zNear, ymax); - c = CLUTTER_FIXED_DIV (-(zFar + zNear), ( zFar - zNear)); - d = CLUTTER_FIXED_DIV (-(clutter_qmulx (2*zFar, zNear)), (zFar - zNear)); + xmax = COGL_FIXED_FAST_DIV (ymax, aspect); + + x = COGL_FIXED_FAST_DIV (zNear, xmax); + y = COGL_FIXED_FAST_DIV (zNear, ymax); + c = COGL_FIXED_FAST_DIV (-(zFar + zNear), ( zFar - zNear)); + d = cogl_fixed_mul_div (-(2 * zFar), zNear, (zFar - zNear)); #define M(row,col) m[col*4+row] - M(0,0) = CLUTTER_FIXED_TO_FLOAT (x); - M(1,1) = CLUTTER_FIXED_TO_FLOAT (y); - M(2,2) = CLUTTER_FIXED_TO_FLOAT (c); - M(2,3) = CLUTTER_FIXED_TO_FLOAT (d); + M(0,0) = COGL_FIXED_TO_FLOAT (x); + M(1,1) = COGL_FIXED_TO_FLOAT (y); + M(2,2) = COGL_FIXED_TO_FLOAT (c); + M(2,3) = COGL_FIXED_TO_FLOAT (d); M(3,2) = -1.0F; GE( glMultMatrixf (m) ); @@ -794,22 +797,22 @@ cogl_perspective (ClutterFixed fovy, memset (ctx->inverse_projection, 0, sizeof (GLfloat) * 16); #define m ctx->inverse_projection - M(0, 0) = 1.0f / CLUTTER_FIXED_TO_FLOAT (x); - M(1, 1) = 1.0f / CLUTTER_FIXED_TO_FLOAT (y); + M(0, 0) = 1.0f / COGL_FIXED_TO_FLOAT (x); + M(1, 1) = 1.0f / COGL_FIXED_TO_FLOAT (y); M(2, 3) = -1.0f; - M(3, 2) = 1.0f / CLUTTER_FIXED_TO_FLOAT (d); - M(3, 3) = CLUTTER_FIXED_TO_FLOAT (c) / CLUTTER_FIXED_TO_FLOAT (d); + M(3, 2) = 1.0f / COGL_FIXED_TO_FLOAT (d); + M(3, 3) = COGL_FIXED_TO_FLOAT (c) / COGL_FIXED_TO_FLOAT (d); #undef m #undef M } void -cogl_frustum (ClutterFixed left, - ClutterFixed right, - ClutterFixed bottom, - ClutterFixed top, - ClutterFixed z_near, - ClutterFixed z_far) +cogl_frustum (CoglFixed left, + CoglFixed right, + CoglFixed bottom, + CoglFixed top, + CoglFixed z_near, + CoglFixed z_far) { GLfloat c, d; @@ -818,32 +821,32 @@ cogl_frustum (ClutterFixed left, GE( glMatrixMode (GL_PROJECTION) ); GE( glLoadIdentity () ); - GE( glFrustum (CLUTTER_FIXED_TO_DOUBLE (left), - CLUTTER_FIXED_TO_DOUBLE (right), - CLUTTER_FIXED_TO_DOUBLE (bottom), - CLUTTER_FIXED_TO_DOUBLE (top), - CLUTTER_FIXED_TO_DOUBLE (z_near), - CLUTTER_FIXED_TO_DOUBLE (z_far)) ); + GE( glFrustum (COGL_FIXED_TO_DOUBLE (left), + COGL_FIXED_TO_DOUBLE (right), + COGL_FIXED_TO_DOUBLE (bottom), + COGL_FIXED_TO_DOUBLE (top), + COGL_FIXED_TO_DOUBLE (z_near), + COGL_FIXED_TO_DOUBLE (z_far)) ); GE( glMatrixMode (GL_MODELVIEW) ); /* Calculate and store the inverse of the matrix */ memset (ctx->inverse_projection, 0, sizeof (GLfloat) * 16); - c = -CLUTTER_FIXED_TO_FLOAT (z_far + z_near) - / CLUTTER_FIXED_TO_FLOAT (z_far - z_near); - d = -CLUTTER_FIXED_TO_FLOAT (2 * CFX_QMUL (z_far, z_near)) - / CLUTTER_FIXED_TO_FLOAT (z_far - z_near); + c = -COGL_FIXED_TO_FLOAT (z_far + z_near) + / COGL_FIXED_TO_FLOAT (z_far - z_near); + d = -COGL_FIXED_TO_FLOAT (2 * COGL_FIXED_MUL (z_far, z_near)) + / COGL_FIXED_TO_FLOAT (z_far - z_near); #define M(row,col) ctx->inverse_projection[col*4+row] - M(0,0) = CLUTTER_FIXED_TO_FLOAT (right - left) - / CLUTTER_FIXED_TO_FLOAT (2 * z_near); - M(0,3) = CLUTTER_FIXED_TO_FLOAT (right + left) - / CLUTTER_FIXED_TO_FLOAT (2 * z_near); - M(1,1) = CLUTTER_FIXED_TO_FLOAT (top - bottom) - / CLUTTER_FIXED_TO_FLOAT (2 * z_near); - M(1,3) = CLUTTER_FIXED_TO_FLOAT (top + bottom) - / CLUTTER_FIXED_TO_FLOAT (2 * z_near); + M(0,0) = COGL_FIXED_TO_FLOAT (right - left) + / COGL_FIXED_TO_FLOAT (2 * z_near); + M(0,3) = COGL_FIXED_TO_FLOAT (right + left) + / COGL_FIXED_TO_FLOAT (2 * z_near); + M(1,1) = COGL_FIXED_TO_FLOAT (top - bottom) + / COGL_FIXED_TO_FLOAT (2 * z_near); + M(1,3) = COGL_FIXED_TO_FLOAT (top + bottom) + / COGL_FIXED_TO_FLOAT (2 * z_near); M(2,3) = -1.0f; M(3,2) = 1.0f / d; M(3,3) = c / d; @@ -860,10 +863,10 @@ cogl_viewport (guint width, void cogl_setup_viewport (guint width, guint height, - ClutterFixed fovy, - ClutterFixed aspect, - ClutterFixed z_near, - ClutterFixed z_far) + CoglFixed fovy, + CoglFixed aspect, + CoglFixed z_near, + CoglFixed z_far) { GLfloat z_camera; @@ -891,13 +894,13 @@ cogl_setup_viewport (guint width, z_camera = DEFAULT_Z_CAMERA; - if (fovy != CFX_60) + if (fovy != COGL_FIXED_60) { - ClutterFixed fovy_rad = CFX_MUL (fovy, CFX_PI) / 180; + CoglFixed fovy_rad = COGL_FIXED_MUL (fovy, COGL_FIXED_PI) / 180; z_camera = - CLUTTER_FIXED_TO_FLOAT (CFX_DIV (clutter_sinx (fovy_rad), - clutter_cosx (fovy_rad)) >> 1); + COGL_FIXED_TO_FLOAT (COGL_FIXED_DIV (cogl_fixed_sin (fovy_rad), + cogl_fixed_cos (fovy_rad)) >> 1); } GE( glTranslatef (-0.5f, -0.5f, -z_camera) ); @@ -1141,75 +1144,75 @@ cogl_features_available (CoglFeatureFlags features) } void -cogl_get_modelview_matrix (ClutterFixed m[16]) +cogl_get_modelview_matrix (CoglFixed m[16]) { GLdouble md[16]; glGetDoublev(GL_MODELVIEW_MATRIX, &md[0]); #define M(m,row,col) m[col*4+row] - M(m,0,0) = CLUTTER_FLOAT_TO_FIXED (M(md,0,0)); - M(m,0,1) = CLUTTER_FLOAT_TO_FIXED (M(md,0,1)); - M(m,0,2) = CLUTTER_FLOAT_TO_FIXED (M(md,0,2)); - M(m,0,3) = CLUTTER_FLOAT_TO_FIXED (M(md,0,3)); + M(m,0,0) = COGL_FIXED_FROM_FLOAT (M(md,0,0)); + M(m,0,1) = COGL_FIXED_FROM_FLOAT (M(md,0,1)); + M(m,0,2) = COGL_FIXED_FROM_FLOAT (M(md,0,2)); + M(m,0,3) = COGL_FIXED_FROM_FLOAT (M(md,0,3)); - M(m,1,0) = CLUTTER_FLOAT_TO_FIXED (M(md,1,0)); - M(m,1,1) = CLUTTER_FLOAT_TO_FIXED (M(md,1,1)); - M(m,1,2) = CLUTTER_FLOAT_TO_FIXED (M(md,1,2)); - M(m,1,3) = CLUTTER_FLOAT_TO_FIXED (M(md,1,3)); + M(m,1,0) = COGL_FIXED_FROM_FLOAT (M(md,1,0)); + M(m,1,1) = COGL_FIXED_FROM_FLOAT (M(md,1,1)); + M(m,1,2) = COGL_FIXED_FROM_FLOAT (M(md,1,2)); + M(m,1,3) = COGL_FIXED_FROM_FLOAT (M(md,1,3)); - M(m,2,0) = CLUTTER_FLOAT_TO_FIXED (M(md,2,0)); - M(m,2,1) = CLUTTER_FLOAT_TO_FIXED (M(md,2,1)); - M(m,2,2) = CLUTTER_FLOAT_TO_FIXED (M(md,2,2)); - M(m,2,3) = CLUTTER_FLOAT_TO_FIXED (M(md,2,3)); + M(m,2,0) = COGL_FIXED_FROM_FLOAT (M(md,2,0)); + M(m,2,1) = COGL_FIXED_FROM_FLOAT (M(md,2,1)); + M(m,2,2) = COGL_FIXED_FROM_FLOAT (M(md,2,2)); + M(m,2,3) = COGL_FIXED_FROM_FLOAT (M(md,2,3)); - M(m,3,0) = CLUTTER_FLOAT_TO_FIXED (M(md,3,0)); - M(m,3,1) = CLUTTER_FLOAT_TO_FIXED (M(md,3,1)); - M(m,3,2) = CLUTTER_FLOAT_TO_FIXED (M(md,3,2)); - M(m,3,3) = CLUTTER_FLOAT_TO_FIXED (M(md,3,3)); + M(m,3,0) = COGL_FIXED_FROM_FLOAT (M(md,3,0)); + M(m,3,1) = COGL_FIXED_FROM_FLOAT (M(md,3,1)); + M(m,3,2) = COGL_FIXED_FROM_FLOAT (M(md,3,2)); + M(m,3,3) = COGL_FIXED_FROM_FLOAT (M(md,3,3)); #undef M } void -cogl_get_projection_matrix (ClutterFixed m[16]) +cogl_get_projection_matrix (CoglFixed m[16]) { GLdouble md[16]; glGetDoublev(GL_PROJECTION_MATRIX, &md[0]); #define M(m,row,col) m[col*4+row] - M(m,0,0) = CLUTTER_FLOAT_TO_FIXED (M(md,0,0)); - M(m,0,1) = CLUTTER_FLOAT_TO_FIXED (M(md,0,1)); - M(m,0,2) = CLUTTER_FLOAT_TO_FIXED (M(md,0,2)); - M(m,0,3) = CLUTTER_FLOAT_TO_FIXED (M(md,0,3)); + M(m,0,0) = COGL_FIXED_FROM_FLOAT (M(md,0,0)); + M(m,0,1) = COGL_FIXED_FROM_FLOAT (M(md,0,1)); + M(m,0,2) = COGL_FIXED_FROM_FLOAT (M(md,0,2)); + M(m,0,3) = COGL_FIXED_FROM_FLOAT (M(md,0,3)); - M(m,1,0) = CLUTTER_FLOAT_TO_FIXED (M(md,1,0)); - M(m,1,1) = CLUTTER_FLOAT_TO_FIXED (M(md,1,1)); - M(m,1,2) = CLUTTER_FLOAT_TO_FIXED (M(md,1,2)); - M(m,1,3) = CLUTTER_FLOAT_TO_FIXED (M(md,1,3)); + M(m,1,0) = COGL_FIXED_FROM_FLOAT (M(md,1,0)); + M(m,1,1) = COGL_FIXED_FROM_FLOAT (M(md,1,1)); + M(m,1,2) = COGL_FIXED_FROM_FLOAT (M(md,1,2)); + M(m,1,3) = COGL_FIXED_FROM_FLOAT (M(md,1,3)); - M(m,2,0) = CLUTTER_FLOAT_TO_FIXED (M(md,2,0)); - M(m,2,1) = CLUTTER_FLOAT_TO_FIXED (M(md,2,1)); - M(m,2,2) = CLUTTER_FLOAT_TO_FIXED (M(md,2,2)); - M(m,2,3) = CLUTTER_FLOAT_TO_FIXED (M(md,2,3)); + M(m,2,0) = COGL_FIXED_FROM_FLOAT (M(md,2,0)); + M(m,2,1) = COGL_FIXED_FROM_FLOAT (M(md,2,1)); + M(m,2,2) = COGL_FIXED_FROM_FLOAT (M(md,2,2)); + M(m,2,3) = COGL_FIXED_FROM_FLOAT (M(md,2,3)); - M(m,3,0) = CLUTTER_FLOAT_TO_FIXED (M(md,3,0)); - M(m,3,1) = CLUTTER_FLOAT_TO_FIXED (M(md,3,1)); - M(m,3,2) = CLUTTER_FLOAT_TO_FIXED (M(md,3,2)); - M(m,3,3) = CLUTTER_FLOAT_TO_FIXED (M(md,3,3)); + M(m,3,0) = COGL_FIXED_FROM_FLOAT (M(md,3,0)); + M(m,3,1) = COGL_FIXED_FROM_FLOAT (M(md,3,1)); + M(m,3,2) = COGL_FIXED_FROM_FLOAT (M(md,3,2)); + M(m,3,3) = COGL_FIXED_FROM_FLOAT (M(md,3,3)); #undef M } void -cogl_get_viewport (ClutterFixed v[4]) +cogl_get_viewport (CoglFixed v[4]) { GLdouble vd[4]; glGetDoublev(GL_VIEWPORT, &vd[0]); - v[0] = CLUTTER_FLOAT_TO_FIXED (vd[0]); - v[1] = CLUTTER_FLOAT_TO_FIXED (vd[1]); - v[2] = CLUTTER_FLOAT_TO_FIXED (vd[2]); - v[3] = CLUTTER_FLOAT_TO_FIXED (vd[3]); + v[0] = COGL_FIXED_FROM_FLOAT (vd[0]); + v[1] = COGL_FIXED_FROM_FLOAT (vd[1]); + v[2] = COGL_FIXED_FROM_FLOAT (vd[2]); + v[3] = COGL_FIXED_FROM_FLOAT (vd[3]); } void @@ -1240,9 +1243,9 @@ cogl_get_bitmasks (gint *red, gint *green, gint *blue, gint *alpha) void cogl_fog_set (const ClutterColor *fog_color, - ClutterFixed density, - ClutterFixed start, - ClutterFixed stop) + CoglFixed density, + CoglFixed start, + CoglFixed stop) { GLfloat fogColor[4]; @@ -1258,7 +1261,7 @@ cogl_fog_set (const ClutterColor *fog_color, glFogi (GL_FOG_MODE, GL_LINEAR); glHint (GL_FOG_HINT, GL_NICEST); - glFogf (GL_FOG_DENSITY, CLUTTER_FIXED_TO_FLOAT (density)); - glFogf (GL_FOG_START, CLUTTER_FIXED_TO_FLOAT (start)); - glFogf (GL_FOG_END, CLUTTER_FIXED_TO_FLOAT (stop)); + glFogf (GL_FOG_DENSITY, COGL_FIXED_TO_FLOAT (density)); + glFogf (GL_FOG_START, COGL_FIXED_TO_FLOAT (start)); + glFogf (GL_FOG_END, COGL_FIXED_TO_FLOAT (stop)); } diff --git a/gles/Makefile.am b/gles/Makefile.am index 950888703..fe4bb77d8 100644 --- a/gles/Makefile.am +++ b/gles/Makefile.am @@ -1,6 +1,8 @@ libclutterincludedir = $(includedir)/clutter-@CLUTTER_API_VERSION@/cogl -libclutterinclude_HEADERS = $(top_builddir)/clutter/cogl/cogl.h \ - $(top_builddir)/clutter/cogl/cogl-defines-gles.h +libclutterinclude_HEADERS = \ + $(top_builddir)/clutter/cogl/cogl.h \ + $(top_builddir)/clutter/cogl/cogl-defines-gles.h \ + $(top_builddir)/clutter/cogl/cogl-fixed.h INCLUDES = \ -I$(top_srcdir) \ @@ -21,6 +23,7 @@ noinst_LTLIBRARIES = libclutter-cogl.la libclutter_cogl_la_SOURCES = \ $(top_builddir)/clutter/cogl/cogl.h \ $(top_builddir)/clutter/cogl/cogl-defines-gles.h \ + $(top_builddir)/clutter/cogl/cogl-fixed.h \ cogl-internal.h \ cogl-texture.h \ cogl-fbo.h \ diff --git a/gles/cogl-fbo.c b/gles/cogl-fbo.c index cd4cff705..3d8d7fb9f 100644 --- a/gles/cogl-fbo.c +++ b/gles/cogl-fbo.c @@ -227,12 +227,12 @@ cogl_draw_buffer (CoglBufferTarget target, CoglHandle offscreen) /* Setup new viewport and matrices */ GE( glViewport (0, 0, fbo->width, fbo->height) ); - GE( cogl_wrap_glTranslatex (-CFX_ONE, -CFX_ONE, 0) ); - GE( cogl_wrap_glScalex (CFX_QDIV (CLUTTER_INT_TO_FIXED (2), - CLUTTER_INT_TO_FIXED (fbo->width)), - CFX_QDIV (CLUTTER_INT_TO_FIXED (2), - CLUTTER_INT_TO_FIXED (fbo->height)), - CFX_ONE) ); + GE( cogl_wrap_glTranslatex (-COGL_FIXED_1, -COGL_FIXED_1, 0) ); + GE( cogl_wrap_glScalex (COGL_FIXED_DIV (COGL_FIXED_FROM_INT (2), + COGL_FIXED_FROM_INT (fbo->width)), + COGL_FIXED_DIV (COGL_FIXED_FROM_INT (2), + COGL_FIXED_FROM_INT (fbo->height)), + COGL_FIXED_1) ); /* Bind offscreen framebuffer object */ GE( glBindFramebuffer (GL_FRAMEBUFFER, fbo->gl_handle) ); diff --git a/gles/cogl-gles2-wrapper.c b/gles/cogl-gles2-wrapper.c index 2bdcaf2af..450d0b061 100644 --- a/gles/cogl-gles2-wrapper.c +++ b/gles/cogl-gles2-wrapper.c @@ -118,7 +118,7 @@ cogl_gles2_wrapper_init (CoglGles2Wrapper *wrapper) /* Initialize the fogging options */ cogl_wrap_glDisable (GL_FOG); cogl_wrap_glFogx (GL_FOG_MODE, GL_LINEAR); - cogl_wrap_glFogx (GL_FOG_DENSITY, CFX_ONE); + cogl_wrap_glFogx (GL_FOG_DENSITY, COGL_FIXED_1); cogl_wrap_glFogx (GL_FOG_START, 0); cogl_wrap_glFogx (GL_FOG_END, 1); cogl_wrap_glFogxv (GL_FOG_COLOR, default_fog_color); @@ -506,10 +506,10 @@ cogl_gles2_wrapper_update_matrix (CoglGles2Wrapper *wrapper, GLenum matrix_num) void cogl_wrap_glClearColorx (GLclampx r, GLclampx g, GLclampx b, GLclampx a) { - glClearColor (CLUTTER_FIXED_TO_FLOAT (r), - CLUTTER_FIXED_TO_FLOAT (g), - CLUTTER_FIXED_TO_FLOAT (b), - CLUTTER_FIXED_TO_FLOAT (a)); + glClearColor (COGL_FIXED_TO_FLOAT (r), + COGL_FIXED_TO_FLOAT (g), + COGL_FIXED_TO_FLOAT (b), + COGL_FIXED_TO_FLOAT (a)); } void @@ -661,7 +661,7 @@ cogl_wrap_glMultMatrixx (const GLfixed *m) int i; for (i = 0; i < 16; i++) - new_matrix[i] = CLUTTER_FIXED_TO_FLOAT (m[i]); + new_matrix[i] = COGL_FIXED_TO_FLOAT (m[i]); cogl_wrap_glMultMatrix (new_matrix); } @@ -672,21 +672,21 @@ cogl_wrap_glFrustumx (GLfixed left, GLfixed right, GLfixed z_near, GLfixed z_far) { float matrix[16]; - float two_near = CLUTTER_FIXED_TO_FLOAT (2 * z_near); + float two_near = COGL_FIXED_TO_FLOAT (2 * z_near); memset (matrix, 0, sizeof (matrix)); - matrix[0] = two_near / CLUTTER_FIXED_TO_FLOAT (right - left); - matrix[5] = two_near / CLUTTER_FIXED_TO_FLOAT (top - bottom); - matrix[8] = CLUTTER_FIXED_TO_FLOAT (right + left) - / CLUTTER_FIXED_TO_FLOAT (right - left); - matrix[9] = CLUTTER_FIXED_TO_FLOAT (top + bottom) - / CLUTTER_FIXED_TO_FLOAT (top - bottom); - matrix[10] = -CLUTTER_FIXED_TO_FLOAT (z_far + z_near) - / CLUTTER_FIXED_TO_FLOAT (z_far - z_near); + matrix[0] = two_near / COGL_FIXED_TO_FLOAT (right - left); + matrix[5] = two_near / COGL_FIXED_TO_FLOAT (top - bottom); + matrix[8] = COGL_FIXED_TO_FLOAT (right + left) + / COGL_FIXED_TO_FLOAT (right - left); + matrix[9] = COGL_FIXED_TO_FLOAT (top + bottom) + / COGL_FIXED_TO_FLOAT (top - bottom); + matrix[10] = -COGL_FIXED_TO_FLOAT (z_far + z_near) + / COGL_FIXED_TO_FLOAT (z_far - z_near); matrix[11] = -1.0f; - matrix[14] = -two_near * CLUTTER_FIXED_TO_FLOAT (z_far) - / CLUTTER_FIXED_TO_FLOAT (z_far - z_near); + matrix[14] = -two_near * COGL_FIXED_TO_FLOAT (z_far) + / COGL_FIXED_TO_FLOAT (z_far - z_near); cogl_wrap_glMultMatrix (matrix); } @@ -697,9 +697,9 @@ cogl_wrap_glScalex (GLfixed x, GLfixed y, GLfixed z) float matrix[16]; memset (matrix, 0, sizeof (matrix)); - matrix[0] = CLUTTER_FIXED_TO_FLOAT (x); - matrix[5] = CLUTTER_FIXED_TO_FLOAT (y); - matrix[10] = CLUTTER_FIXED_TO_FLOAT (z); + matrix[0] = COGL_FIXED_TO_FLOAT (x); + matrix[5] = COGL_FIXED_TO_FLOAT (y); + matrix[10] = COGL_FIXED_TO_FLOAT (z); matrix[15] = 1.0f; cogl_wrap_glMultMatrix (matrix); @@ -714,9 +714,9 @@ cogl_wrap_glTranslatex (GLfixed x, GLfixed y, GLfixed z) matrix[0] = 1.0f; matrix[5] = 1.0f; matrix[10] = 1.0f; - matrix[12] = CLUTTER_FIXED_TO_FLOAT (x); - matrix[13] = CLUTTER_FIXED_TO_FLOAT (y); - matrix[14] = CLUTTER_FIXED_TO_FLOAT (z); + matrix[12] = COGL_FIXED_TO_FLOAT (x); + matrix[13] = COGL_FIXED_TO_FLOAT (y); + matrix[14] = COGL_FIXED_TO_FLOAT (z); matrix[15] = 1.0f; cogl_wrap_glMultMatrix (matrix); @@ -726,10 +726,10 @@ void cogl_wrap_glRotatex (GLfixed angle, GLfixed x, GLfixed y, GLfixed z) { float matrix[16]; - float xf = CLUTTER_FIXED_TO_FLOAT (x); - float yf = CLUTTER_FIXED_TO_FLOAT (y); - float zf = CLUTTER_FIXED_TO_FLOAT (z); - float anglef = CLUTTER_FIXED_TO_FLOAT (angle) * G_PI / 180.0f; + float xf = COGL_FIXED_TO_FLOAT (x); + float yf = COGL_FIXED_TO_FLOAT (y); + float zf = COGL_FIXED_TO_FLOAT (z); + float anglef = COGL_FIXED_TO_FLOAT (angle) * G_PI / 180.0f; float c = cosf (anglef); float s = sinf (anglef); @@ -761,17 +761,17 @@ cogl_wrap_glOrthox (GLfixed left, GLfixed right, GLfixed bottom, GLfixed top, GLfixed near, GLfixed far) { float matrix[16]; - float xrange = CLUTTER_FIXED_TO_FLOAT (right - left); - float yrange = CLUTTER_FIXED_TO_FLOAT (top - bottom); - float zrange = CLUTTER_FIXED_TO_FLOAT (far - near); + float xrange = COGL_FIXED_TO_FLOAT (right - left); + float yrange = COGL_FIXED_TO_FLOAT (top - bottom); + float zrange = COGL_FIXED_TO_FLOAT (far - near); memset (matrix, 0, sizeof (matrix)); matrix[0] = 2.0f / xrange; matrix[5] = 2.0f / yrange; matrix[10] = 2.0f / zrange; - matrix[12] = CLUTTER_FIXED_TO_FLOAT (right + left) / xrange; - matrix[13] = CLUTTER_FIXED_TO_FLOAT (top + bottom) / yrange; - matrix[14] = CLUTTER_FIXED_TO_FLOAT (far + near) / zrange; + matrix[12] = COGL_FIXED_TO_FLOAT (right + left) / xrange; + matrix[13] = COGL_FIXED_TO_FLOAT (top + bottom) / yrange; + matrix[14] = COGL_FIXED_TO_FLOAT (far + near) / zrange; matrix[15] = 1.0f; cogl_wrap_glMultMatrix (matrix); @@ -1030,10 +1030,10 @@ void cogl_wrap_glColor4x (GLclampx r, GLclampx g, GLclampx b, GLclampx a) { glVertexAttrib4f (COGL_GLES2_WRAPPER_COLOR_ATTRIB, - CLUTTER_FIXED_TO_FLOAT (r), - CLUTTER_FIXED_TO_FLOAT (g), - CLUTTER_FIXED_TO_FLOAT (b), - CLUTTER_FIXED_TO_FLOAT (a)); + COGL_FIXED_TO_FLOAT (r), + COGL_FIXED_TO_FLOAT (g), + COGL_FIXED_TO_FLOAT (b), + COGL_FIXED_TO_FLOAT (a)); } void @@ -1043,11 +1043,12 @@ cogl_wrap_glClipPlanex (GLenum plane, GLfixed *equation) } static void -cogl_gles2_float_array_to_fixed (int size, const GLfloat *floats, - GLfixed *fixeds) +cogl_gles2_float_array_to_fixed (int size, + const GLfloat *floats, + GLfixed *fixeds) { while (size-- > 0) - *(fixeds++) = CLUTTER_FLOAT_TO_FIXED (*(floats++)); + *(fixeds++) = COGL_FIXED_FROM_FLOAT (*(floats++)); } void @@ -1110,17 +1111,17 @@ cogl_wrap_glFogx (GLenum pname, GLfixed param) case GL_FOG_DENSITY: _COGL_GLES2_CHANGE_UNIFORM (w, FOG_DENSITY, fog_density, - CLUTTER_FIXED_TO_FLOAT (param)); + COGL_FIXED_TO_FLOAT (param)); break; case GL_FOG_START: _COGL_GLES2_CHANGE_UNIFORM (w, FOG_START, fog_start, - CLUTTER_FIXED_TO_FLOAT (param)); + COGL_FIXED_TO_FLOAT (param)); break; case GL_FOG_END: _COGL_GLES2_CHANGE_UNIFORM (w, FOG_END, fog_end, - CLUTTER_FIXED_TO_FLOAT (param)); + COGL_FIXED_TO_FLOAT (param)); break; } } @@ -1134,7 +1135,8 @@ cogl_wrap_glFogxv (GLenum pname, const GLfixed *params) if (pname == GL_FOG_COLOR) { for (i = 0; i < 4; i++) - w->fog_color[i] = CLUTTER_FIXED_TO_FLOAT (params[i]); + w->fog_color[i] = COGL_FIXED_TO_FLOAT (params[i]); + w->dirty_uniforms |= COGL_GLES2_DIRTY_FOG_COLOR; } } diff --git a/gles/cogl-primitives.c b/gles/cogl-primitives.c index c559ca11b..8be70784d 100644 --- a/gles/cogl-primitives.c +++ b/gles/cogl-primitives.c @@ -64,10 +64,10 @@ _cogl_rectangle (gint x, void -_cogl_rectanglex (ClutterFixed x, - ClutterFixed y, - ClutterFixed width, - ClutterFixed height) +_cogl_rectanglex (CoglFixed x, + CoglFixed y, + CoglFixed width, + CoglFixed height) { GLfixed rect_verts[8] = { x, y, @@ -102,8 +102,8 @@ _cogl_path_clear_nodes () } void -_cogl_path_add_node (ClutterFixed x, - ClutterFixed y) +_cogl_path_add_node (CoglFixed x, + CoglFixed y) { CoglFixedVec2 *new_nodes = NULL; @@ -168,10 +168,10 @@ _cogl_path_fill_nodes () _COGL_GET_CONTEXT (ctx, NO_RETVAL); - bounds_x = CLUTTER_FIXED_FLOOR (ctx->path_nodes_min.x); - bounds_y = CLUTTER_FIXED_FLOOR (ctx->path_nodes_min.y); - bounds_w = CLUTTER_FIXED_CEIL (ctx->path_nodes_max.x - ctx->path_nodes_min.x); - bounds_h = CLUTTER_FIXED_CEIL (ctx->path_nodes_max.y - ctx->path_nodes_min.y); + bounds_x = COGL_FIXED_FLOOR (ctx->path_nodes_min.x); + bounds_y = COGL_FIXED_FLOOR (ctx->path_nodes_min.y); + bounds_w = COGL_FIXED_CEIL (ctx->path_nodes_max.x - ctx->path_nodes_min.x); + bounds_h = COGL_FIXED_CEIL (ctx->path_nodes_max.y - ctx->path_nodes_min.y); if (cogl_features_available (COGL_FEATURE_STENCIL_BUFFER)) { @@ -223,14 +223,14 @@ _cogl_path_fill_nodes () for (i=0; i < bounds_h; i++) scanlines[i]=NULL; - first_x = prev_x = CLUTTER_FIXED_TO_INT (ctx->path_nodes[0].x); - first_y = prev_y = CLUTTER_FIXED_TO_INT (ctx->path_nodes[0].y); + first_x = prev_x = COGL_FIXED_TO_INT (ctx->path_nodes[0].x); + first_y = prev_y = COGL_FIXED_TO_INT (ctx->path_nodes[0].y); /* create scanline intersection list */ for (i=1; ipath_nodes_size; i++) { - gint dest_x = CLUTTER_FIXED_TO_INT (ctx->path_nodes[i].x); - gint dest_y = CLUTTER_FIXED_TO_INT (ctx->path_nodes[i].y); + gint dest_x = COGL_FIXED_TO_INT (ctx->path_nodes[i].x); + gint dest_y = COGL_FIXED_TO_INT (ctx->path_nodes[i].y); gint ydir; gint dx; gint dy; @@ -326,10 +326,10 @@ _cogl_path_fill_nodes () if (!next) break; - x0 = CLUTTER_INT_TO_FIXED (GPOINTER_TO_INT (iter->data)); - x1 = CLUTTER_INT_TO_FIXED (GPOINTER_TO_INT (next->data)); - y0 = CLUTTER_INT_TO_FIXED (bounds_y + i); - y1 = CLUTTER_INT_TO_FIXED (bounds_y + i + 1) + 2048; + x0 = COGL_FIXED_FROM_INT (GPOINTER_TO_INT (iter->data)); + x1 = COGL_FIXED_FROM_INT (GPOINTER_TO_INT (next->data)); + y0 = COGL_FIXED_FROM_INT (bounds_y + i); + y1 = COGL_FIXED_FROM_INT (bounds_y + i + 1) + 2048; /* render scanlines 1.0625 high to avoid gaps when transformed */ diff --git a/gles/cogl-texture.c b/gles/cogl-texture.c index 395f98005..1ad09abd9 100644 --- a/gles/cogl-texture.c +++ b/gles/cogl-texture.c @@ -55,15 +55,15 @@ struct _CoglSpanIter gint index; GArray *array; CoglTexSliceSpan *span; - ClutterFixed pos; - ClutterFixed next_pos; - ClutterFixed origin; - ClutterFixed cover_start; - ClutterFixed cover_end; - ClutterFixed intersect_start; - ClutterFixed intersect_end; - ClutterFixed intersect_start_local; - ClutterFixed intersect_end_local; + CoglFixed pos; + CoglFixed next_pos; + CoglFixed origin; + CoglFixed cover_start; + CoglFixed cover_end; + CoglFixed intersect_start; + CoglFixed intersect_end; + CoglFixed intersect_start_local; + CoglFixed intersect_end_local; gboolean intersects; }; @@ -108,7 +108,7 @@ _cogl_span_iter_update (CoglSpanIter *iter) /* Offset next position by span size */ iter->next_pos = iter->pos + - CLUTTER_INT_TO_FIXED (iter->span->size - iter->span->waste); + COGL_FIXED_FROM_INT (iter->span->size - iter->span->waste); /* Check if span intersects the area to cover */ if (iter->next_pos <= iter->cover_start || @@ -137,9 +137,9 @@ _cogl_span_iter_update (CoglSpanIter *iter) static void _cogl_span_iter_begin (CoglSpanIter *iter, GArray *array, - ClutterFixed origin, - ClutterFixed cover_start, - ClutterFixed cover_end) + CoglFixed origin, + CoglFixed cover_start, + CoglFixed cover_end) { /* Copy info */ iter->index = 0; @@ -342,10 +342,10 @@ _cogl_texture_draw_and_read (CoglTexture *tex, GLint *viewport) { gint bpp; - ClutterFixed rx1, ry1; - ClutterFixed rx2, ry2; - ClutterFixed tx1, ty1; - ClutterFixed tx2, ty2; + CoglFixed rx1, ry1; + CoglFixed rx2, ry2; + CoglFixed tx1, ty1; + CoglFixed tx2, ty2; int bw, bh; CoglBitmap rect_bmp; CoglHandle handle; @@ -366,9 +366,9 @@ _cogl_texture_draw_and_read (CoglTexture *tex, /* Draw the texture image */ cogl_texture_rectangle (handle, 0, 0, - CLUTTER_INT_TO_FIXED (tex->bitmap.width), - CLUTTER_INT_TO_FIXED (tex->bitmap.height), - 0, 0, CFX_ONE, CFX_ONE); + COGL_FIXED_FROM_INT (tex->bitmap.width), + COGL_FIXED_FROM_INT (tex->bitmap.height), + 0, 0, COGL_FIXED_1, COGL_FIXED_1); /* Read into target bitmap */ GE( glPixelStorei (GL_PACK_ALIGNMENT, 1) ); @@ -383,7 +383,7 @@ _cogl_texture_draw_and_read (CoglTexture *tex, ry1 = 0; ry2 = 0; ty1 = 0; ty2 = 0; -#define CFIX CLUTTER_INT_TO_FIXED +#define CFIX COGL_FIXED_FROM_INT /* Walk Y axis until whole bitmap height consumed */ for (bh = tex->bitmap.height; bh > 0; bh -= viewport[3]) @@ -394,7 +394,7 @@ _cogl_texture_draw_and_read (CoglTexture *tex, /* Normalized texture Y coords */ ty1 = ty2; - ty2 = CFX_QDIV (CFIX (ry2), CFIX (tex->bitmap.height)); + ty2 = COGL_FIXED_DIV (CFIX (ry2), CFIX (tex->bitmap.height)); rx1 = 0; rx2 = 0; tx1 = 0; tx2 = 0; @@ -408,7 +408,7 @@ _cogl_texture_draw_and_read (CoglTexture *tex, /* Normalized texture X coords */ tx1 = tx2; - tx2 = CFX_QDIV (CFIX (rx2), CFIX (tex->bitmap.width)); + tx2 = COGL_FIXED_DIV (CFIX (rx2), CFIX (tex->bitmap.width)); /* Clear buffer with transparent black, draw with white for direct copy to framebuffer */ @@ -486,10 +486,10 @@ _cogl_texture_download_from_gl (CoglTexture *tex, GE( cogl_wrap_glPushMatrix () ); GE( cogl_wrap_glLoadIdentity () ); - GE( cogl_wrap_glOrthox (0, CLUTTER_INT_TO_FIXED (viewport[2]), - 0, CLUTTER_INT_TO_FIXED (viewport[3]), - CLUTTER_INT_TO_FIXED (0), - CLUTTER_INT_TO_FIXED (100)) ); + GE( cogl_wrap_glOrthox (0, COGL_FIXED_FROM_INT (viewport[2]), + 0, COGL_FIXED_FROM_INT (viewport[3]), + COGL_FIXED_FROM_INT (0), + COGL_FIXED_FROM_INT (100)) ); GE( cogl_wrap_glMatrixMode (GL_MODELVIEW) ); GE( cogl_wrap_glPushMatrix () ); @@ -608,8 +608,8 @@ _cogl_texture_upload_subregion_to_gl (CoglTexture *tex, /* Iterate vertical spans */ for (source_y = src_y, _cogl_span_iter_begin (&y_iter, tex->slice_y_spans, - 0, CLUTTER_INT_TO_FIXED (dst_y), - CLUTTER_INT_TO_FIXED (dst_y + height)); + 0, COGL_FIXED_FROM_INT (dst_y), + COGL_FIXED_FROM_INT (dst_y + height)); !_cogl_span_iter_end (&y_iter); @@ -629,8 +629,8 @@ _cogl_texture_upload_subregion_to_gl (CoglTexture *tex, /* Iterate horizontal spans */ for (source_x = src_x, _cogl_span_iter_begin (&x_iter, tex->slice_x_spans, - 0, CLUTTER_INT_TO_FIXED (dst_x), - CLUTTER_INT_TO_FIXED (dst_x + width)); + 0, COGL_FIXED_FROM_INT (dst_x), + COGL_FIXED_FROM_INT (dst_x + width)); !_cogl_span_iter_end (&x_iter); @@ -648,16 +648,16 @@ _cogl_texture_upload_subregion_to_gl (CoglTexture *tex, x_iter.index); /* Pick intersection width and height */ - inter_w = CLUTTER_FIXED_TO_INT (x_iter.intersect_end - - x_iter.intersect_start); - inter_h = CLUTTER_FIXED_TO_INT (y_iter.intersect_end - - y_iter.intersect_start); + inter_w = COGL_FIXED_TO_INT (x_iter.intersect_end - + x_iter.intersect_start); + inter_h = COGL_FIXED_TO_INT (y_iter.intersect_end - + y_iter.intersect_start); /* Localize intersection top-left corner to slice*/ - local_x = CLUTTER_FIXED_TO_INT (x_iter.intersect_start - - x_iter.pos); - local_y = CLUTTER_FIXED_TO_INT (y_iter.intersect_start - - y_iter.pos); + local_x = COGL_FIXED_TO_INT (x_iter.intersect_start - + x_iter.pos); + local_y = COGL_FIXED_TO_INT (y_iter.intersect_start - + y_iter.pos); /* Pick slice GL handle */ gl_handle = g_array_index (tex->slice_gl_handles, GLuint, @@ -702,7 +702,7 @@ _cogl_texture_upload_subregion_to_gl (CoglTexture *tex, && local_x + inter_w >= x_span->size - x_span->waste) { const guchar *src = source_bmp->data - + (src_y + CLUTTER_FIXED_TO_INT (y_iter.intersect_start) + + (src_y + COGL_FIXED_TO_INT (y_iter.intersect_start) - dst_y) * source_bmp->rowstride + (src_x + x_span->start + x_span->size - x_span->waste - dst_x - 1) * bpp; @@ -734,7 +734,7 @@ _cogl_texture_upload_subregion_to_gl (CoglTexture *tex, && local_y + inter_h >= y_span->size - y_span->waste) { const guchar *src = source_bmp->data - + (src_x + CLUTTER_FIXED_TO_INT (x_iter.intersect_start) + + (src_x + COGL_FIXED_TO_INT (x_iter.intersect_start) - dst_x) * bpp + (src_y + y_span->start + y_span->size - y_span->waste - dst_y - 1) * source_bmp->rowstride; @@ -1886,24 +1886,24 @@ cogl_texture_get_data (CoglHandle handle, static void _cogl_texture_quad_sw (CoglTexture *tex, - ClutterFixed x1, - ClutterFixed y1, - ClutterFixed x2, - ClutterFixed y2, - ClutterFixed tx1, - ClutterFixed ty1, - ClutterFixed tx2, - ClutterFixed ty2) + CoglFixed x1, + CoglFixed y1, + CoglFixed x2, + CoglFixed y2, + CoglFixed tx1, + CoglFixed ty1, + CoglFixed tx2, + CoglFixed ty2) { CoglSpanIter iter_x , iter_y; - ClutterFixed tw , th; - ClutterFixed tqx , tqy; - ClutterFixed first_tx , first_ty; - ClutterFixed first_qx , first_qy; - ClutterFixed slice_tx1 , slice_ty1; - ClutterFixed slice_tx2 , slice_ty2; - ClutterFixed slice_qx1 , slice_qy1; - ClutterFixed slice_qx2 , slice_qy2; + CoglFixed tw , th; + CoglFixed tqx , tqy; + CoglFixed first_tx , first_ty; + CoglFixed first_qx , first_qy; + CoglFixed slice_tx1 , slice_ty1; + CoglFixed slice_tx2 , slice_ty2; + CoglFixed slice_qx1 , slice_qy1; + CoglFixed slice_qx2 , slice_qy2; GLfixed tex_coords[8]; GLfixed quad_coords[8]; GLuint gl_handle; @@ -1933,27 +1933,27 @@ _cogl_texture_quad_sw (CoglTexture *tex, GE( cogl_wrap_glVertexPointer (2, GL_FIXED, 0, quad_coords) ); /* Scale ratio from texture to quad widths */ - tw = CLUTTER_INT_TO_FIXED (tex->bitmap.width); - th = CLUTTER_INT_TO_FIXED (tex->bitmap.height); + tw = COGL_FIXED_FROM_INT (tex->bitmap.width); + th = COGL_FIXED_FROM_INT (tex->bitmap.height); - tqx = CFX_QDIV (x2-x1, CFX_QMUL (tw, (tx2 - tx1))); - tqy = CFX_QDIV (y2-y1, CFX_QMUL (th, (ty2 - ty1))); + tqx = COGL_FIXED_DIV (x2-x1, COGL_FIXED_MUL (tw, (tx2 - tx1))); + tqy = COGL_FIXED_DIV (y2-y1, COGL_FIXED_MUL (th, (ty2 - ty1))); /* Integral texture coordinate for first tile */ - first_tx = CLUTTER_INT_TO_FIXED (CLUTTER_FIXED_FLOOR (tx1)); - first_ty = CLUTTER_INT_TO_FIXED (CLUTTER_FIXED_FLOOR (ty1)); + first_tx = COGL_FIXED_FROM_INT (COGL_FIXED_FLOOR (tx1)); + first_ty = COGL_FIXED_FROM_INT (COGL_FIXED_FLOOR (ty1)); /* Denormalize texture coordinates */ - first_tx = CFX_QMUL (first_tx, tw); - first_ty = CFX_QMUL (first_ty, th); - tx1 = CFX_QMUL (tx1, tw); - ty1 = CFX_QMUL (ty1, th); - tx2 = CFX_QMUL (tx2, tw); - ty2 = CFX_QMUL (ty2, th); + first_tx = COGL_FIXED_MUL (first_tx, tw); + first_ty = COGL_FIXED_MUL (first_ty, th); + tx1 = COGL_FIXED_MUL (tx1, tw); + ty1 = COGL_FIXED_MUL (ty1, th); + tx2 = COGL_FIXED_MUL (tx2, tw); + ty2 = COGL_FIXED_MUL (ty2, th); /* Quad coordinate of the first tile */ - first_qx = x1 - CFX_QMUL (tx1 - first_tx, tqx); - first_qy = y1 - CFX_QMUL (ty1 - first_ty, tqy); + first_qx = x1 - COGL_FIXED_MUL (tx1 - first_tx, tqx); + first_qy = y1 - COGL_FIXED_MUL (ty1 - first_ty, tqy); /* Iterate until whole quad height covered */ @@ -1967,10 +1967,10 @@ _cogl_texture_quad_sw (CoglTexture *tex, /* Span-quad intersection in quad coordinates */ slice_qy1 = first_qy + - CFX_QMUL (iter_y.intersect_start - first_ty, tqy); + COGL_FIXED_MUL (iter_y.intersect_start - first_ty, tqy); slice_qy2 = first_qy + - CFX_QMUL (iter_y.intersect_end - first_ty, tqy); + COGL_FIXED_MUL (iter_y.intersect_end - first_ty, tqy); /* Localize slice texture coordinates */ slice_ty1 = iter_y.intersect_start - iter_y.pos; @@ -1992,10 +1992,10 @@ _cogl_texture_quad_sw (CoglTexture *tex, /* Span-quad intersection in quad coordinates */ slice_qx1 = first_qx + - CFX_QMUL (iter_x.intersect_start - first_tx, tqx); + COGL_FIXED_MUL (iter_x.intersect_start - first_tx, tqx); slice_qx2 = first_qx + - CFX_QMUL (iter_x.intersect_end - first_tx, tqx); + COGL_FIXED_MUL (iter_x.intersect_end - first_tx, tqx); /* Localize slice texture coordinates */ slice_tx1 = iter_x.intersect_start - iter_x.pos; @@ -2007,14 +2007,14 @@ _cogl_texture_quad_sw (CoglTexture *tex, #if COGL_DEBUG printf("~~~~~ slice (%d,%d)\n", iter_x.index, iter_y.index); - printf("qx1: %f\n", CLUTTER_FIXED_TO_FLOAT (slice_qx1)); - printf("qy1: %f\n", CLUTTER_FIXED_TO_FLOAT (slice_qy1)); - printf("qx2: %f\n", CLUTTER_FIXED_TO_FLOAT (slice_qx2)); - printf("qy2: %f\n", CLUTTER_FIXED_TO_FLOAT (slice_qy2)); - printf("tx1: %f\n", CLUTTER_FIXED_TO_FLOAT (slice_tx1)); - printf("ty1: %f\n", CLUTTER_FIXED_TO_FLOAT (slice_ty1)); - printf("tx2: %f\n", CLUTTER_FIXED_TO_FLOAT (slice_tx2)); - printf("ty2: %f\n", CLUTTER_FIXED_TO_FLOAT (slice_ty2)); + printf("qx1: %f\n", COGL_FIXED_TO_FLOAT (slice_qx1)); + printf("qy1: %f\n", COGL_FIXED_TO_FLOAT (slice_qy1)); + printf("qx2: %f\n", COGL_FIXED_TO_FLOAT (slice_qx2)); + printf("qy2: %f\n", COGL_FIXED_TO_FLOAT (slice_qy2)); + printf("tx1: %f\n", COGL_FIXED_TO_FLOAT (slice_tx1)); + printf("ty1: %f\n", COGL_FIXED_TO_FLOAT (slice_ty1)); + printf("tx2: %f\n", COGL_FIXED_TO_FLOAT (slice_tx2)); + printf("ty2: %f\n", COGL_FIXED_TO_FLOAT (slice_ty2)); #endif /* Pick and bind opengl texture object */ @@ -2043,14 +2043,14 @@ _cogl_texture_quad_sw (CoglTexture *tex, static void _cogl_texture_quad_hw (CoglTexture *tex, - ClutterFixed x1, - ClutterFixed y1, - ClutterFixed x2, - ClutterFixed y2, - ClutterFixed tx1, - ClutterFixed ty1, - ClutterFixed tx2, - ClutterFixed ty2) + CoglFixed x1, + CoglFixed y1, + CoglFixed x2, + CoglFixed y2, + CoglFixed tx1, + CoglFixed ty1, + CoglFixed tx2, + CoglFixed ty2) { GLfixed tex_coords[8]; GLfixed quad_coords[8]; @@ -2111,17 +2111,17 @@ _cogl_texture_quad_hw (CoglTexture *tex, void cogl_texture_rectangle (CoglHandle handle, - ClutterFixed x1, - ClutterFixed y1, - ClutterFixed x2, - ClutterFixed y2, - ClutterFixed tx1, - ClutterFixed ty1, - ClutterFixed tx2, - ClutterFixed ty2) + CoglFixed x1, + CoglFixed y1, + CoglFixed x2, + CoglFixed y2, + CoglFixed tx1, + CoglFixed ty1, + CoglFixed tx2, + CoglFixed ty2) { CoglTexture *tex; - ClutterFixed tempx; + CoglFixed tempx; /* Check if valid texture */ if (!cogl_is_texture (handle)) @@ -2170,9 +2170,9 @@ cogl_texture_rectangle (CoglHandle handle, } /* Tile textured quads */ - if (tex->slice_gl_handles->len == 1 - && tx1 >= -CFX_ONE && tx2 <= CFX_ONE - && ty1 >= -CFX_ONE && ty2 <= CFX_ONE) + if (tex->slice_gl_handles->len == 1 && + tx1 >= -COGL_FIXED_1 && tx2 <= COGL_FIXED_1 && + ty1 >= -COGL_FIXED_1 && ty2 <= COGL_FIXED_1) { _cogl_texture_quad_hw (tex, x1,y1, x2,y2, tx1,ty1, tx2,ty2); } diff --git a/gles/cogl.c b/gles/cogl.c index 0bf4d54f6..531b7479b 100644 --- a/gles/cogl.c +++ b/gles/cogl.c @@ -116,13 +116,13 @@ cogl_pop_matrix (void) } void -cogl_scale (ClutterFixed x, ClutterFixed y) +cogl_scale (CoglFixed x, CoglFixed y) { - GE( cogl_wrap_glScalex (x, y, CFX_ONE) ); + GE( cogl_wrap_glScalex (x, y, COGL_FIXED_1) ); } void -cogl_translatex (ClutterFixed x, ClutterFixed y, ClutterFixed z) +cogl_translatex (CoglFixed x, CoglFixed y, CoglFixed z) { GE( cogl_wrap_glTranslatex (x, y, z) ); } @@ -130,16 +130,16 @@ cogl_translatex (ClutterFixed x, ClutterFixed y, ClutterFixed z) void cogl_translate (gint x, gint y, gint z) { - GE( cogl_wrap_glTranslatex (CLUTTER_INT_TO_FIXED(x), - CLUTTER_INT_TO_FIXED(y), - CLUTTER_INT_TO_FIXED(z)) ); + GE( cogl_wrap_glTranslatex (COGL_FIXED_FROM_INT(x), + COGL_FIXED_FROM_INT(y), + COGL_FIXED_FROM_INT(z)) ); } void -cogl_rotatex (ClutterFixed angle, - ClutterFixed x, - ClutterFixed y, - ClutterFixed z) +cogl_rotatex (CoglFixed angle, + CoglFixed x, + CoglFixed y, + CoglFixed z) { GE( cogl_wrap_glRotatex (angle,x,y,z) ); } @@ -147,10 +147,10 @@ cogl_rotatex (ClutterFixed angle, void cogl_rotate (gint angle, gint x, gint y, gint z) { - GE( cogl_wrap_glRotatex (CLUTTER_INT_TO_FIXED(angle), - CLUTTER_INT_TO_FIXED(x), - CLUTTER_INT_TO_FIXED(y), - CLUTTER_INT_TO_FIXED(z)) ); + GE( cogl_wrap_glRotatex (COGL_FIXED_FROM_INT(angle), + COGL_FIXED_FROM_INT(x), + COGL_FIXED_FROM_INT(y), + COGL_FIXED_FROM_INT(z)) ); } static inline gboolean @@ -326,22 +326,22 @@ cogl_color (const ClutterColor *color) } static void -apply_matrix (const ClutterFixed *matrix, ClutterFixed *vertex) +apply_matrix (const CoglFixed *matrix, CoglFixed *vertex) { int x, y; - ClutterFixed vertex_out[4] = { 0 }; + CoglFixed vertex_out[4] = { 0 }; for (y = 0; y < 4; y++) for (x = 0; x < 4; x++) - vertex_out[y] += CFX_QMUL (vertex[x], matrix[y + x * 4]); + vertex_out[y] += cogl_fixed_mul (vertex[x], matrix[y + x * 4]); memcpy (vertex, vertex_out, sizeof (vertex_out)); } static void -project_vertex (ClutterFixed *modelview, - ClutterFixed *project, - ClutterFixed *vertex) +project_vertex (CoglFixed *modelview, + CoglFixed *project, + CoglFixed *vertex) { int i; @@ -351,13 +351,13 @@ project_vertex (ClutterFixed *modelview, apply_matrix (project, vertex); /* Convert from homogenized coordinates */ for (i = 0; i < 4; i++) - vertex[i] = CFX_QDIV (vertex[i], vertex[3]); + vertex[i] = cogl_fixed_div (vertex[i], vertex[3]); } static void set_clip_plane (GLint plane_num, - const ClutterFixed *vertex_a, - const ClutterFixed *vertex_b) + const CoglFixed *vertex_a, + const CoglFixed *vertex_b) { GLfixed plane[4]; GLfixed angle; @@ -365,9 +365,9 @@ set_clip_plane (GLint plane_num, /* Calculate the angle between the axes and the line crossing the two points */ - angle = CFX_QMUL (clutter_atan2i (vertex_b[1] - vertex_a[1], - vertex_b[0] - vertex_a[0]), - CFX_RADIANS_TO_DEGREES); + angle = cogl_fixed_mul (cogl_fixed_atan2 (vertex_b[1] - vertex_a[1], + vertex_b[0] - vertex_a[0]), + COGL_RADIANS_TO_DEGREES); GE( cogl_wrap_glPushMatrix () ); /* Load the identity matrix and multiply by the reverse of the @@ -383,7 +383,7 @@ set_clip_plane (GLint plane_num, GE( cogl_wrap_glTranslatex (-vertex_a[0], -vertex_a[1], -vertex_a[2]) ); plane[0] = 0; - plane[1] = -CFX_ONE; + plane[1] = -COGL_FIXED_1; plane[2] = 0; plane[3] = vertex_a[1]; GE( cogl_wrap_glClipPlanex (plane_num, plane) ); @@ -394,18 +394,18 @@ set_clip_plane (GLint plane_num, } void -_cogl_set_clip_planes (ClutterFixed x_offset, - ClutterFixed y_offset, - ClutterFixed width, - ClutterFixed height) +_cogl_set_clip_planes (CoglFixed x_offset, + CoglFixed y_offset, + CoglFixed width, + CoglFixed height) { GLfixed modelview[16], projection[16]; - ClutterFixed vertex_tl[4] = { x_offset, y_offset, 0, CFX_ONE }; - ClutterFixed vertex_tr[4] = { x_offset + width, y_offset, 0, CFX_ONE }; - ClutterFixed vertex_bl[4] = { x_offset, y_offset + height, 0, CFX_ONE }; - ClutterFixed vertex_br[4] = { x_offset + width, y_offset + height, - 0, CFX_ONE }; + CoglFixed vertex_tl[4] = { x_offset, y_offset, 0, COGL_FIXED_1 }; + CoglFixed vertex_tr[4] = { x_offset + width, y_offset, 0, COGL_FIXED_1 }; + CoglFixed vertex_bl[4] = { x_offset, y_offset + height, 0, COGL_FIXED_1 }; + CoglFixed vertex_br[4] = { x_offset + width, y_offset + height, + 0, COGL_FIXED_1 }; GE( cogl_wrap_glGetFixedv (GL_MODELVIEW_MATRIX, modelview) ); GE( cogl_wrap_glGetFixedv (GL_PROJECTION_MATRIX, projection) ); @@ -423,7 +423,7 @@ _cogl_set_clip_planes (ClutterFixed x_offset, if ((vertex_tl[0] < vertex_tr[0] ? 1 : 0) != (vertex_bl[1] < vertex_tl[1] ? 1 : 0)) { - ClutterFixed temp[4]; + CoglFixed temp[4]; memcpy (temp, vertex_tl, sizeof (temp)); memcpy (vertex_tl, vertex_tr, sizeof (temp)); memcpy (vertex_tr, temp, sizeof (temp)); @@ -448,10 +448,10 @@ compare_y_coordinate (const void *a, const void *b) } void -_cogl_add_stencil_clip (ClutterFixed x_offset, - ClutterFixed y_offset, - ClutterFixed width, - ClutterFixed height, +_cogl_add_stencil_clip (CoglFixed x_offset, + CoglFixed y_offset, + CoglFixed width, + CoglFixed height, gboolean first) { gboolean has_clip_planes @@ -498,9 +498,9 @@ _cogl_add_stencil_clip (ClutterFixed x_offset, GE( cogl_wrap_glMatrixMode (GL_PROJECTION) ); GE( cogl_wrap_glPushMatrix () ); GE( cogl_wrap_glLoadIdentity () ); - cogl_rectanglex (-CFX_ONE, -CFX_ONE, - CLUTTER_INT_TO_FIXED (2), - CLUTTER_INT_TO_FIXED (2)); + cogl_rectanglex (-COGL_FIXED_1, -COGL_FIXED_1, + COGL_FIXED_FROM_INT (2), + COGL_FIXED_FROM_INT (2)); GE( cogl_wrap_glPopMatrix () ); GE( cogl_wrap_glMatrixMode (GL_MODELVIEW) ); GE( cogl_wrap_glPopMatrix () ); @@ -517,10 +517,10 @@ _cogl_add_stencil_clip (ClutterFixed x_offset, int i; GLfixed points[16] = { - x_offset, y_offset, 0, CFX_ONE, - x_offset + width, y_offset, 0, CFX_ONE, - x_offset, y_offset + height, 0, CFX_ONE, - x_offset + width, y_offset + height, 0, CFX_ONE + x_offset, y_offset, 0, COGL_FIXED_1, + x_offset + width, y_offset, 0, COGL_FIXED_1, + x_offset, y_offset + height, 0, COGL_FIXED_1, + x_offset + width, y_offset + height, 0, COGL_FIXED_1 }; GLfixed draw_points[12]; @@ -551,10 +551,10 @@ _cogl_add_stencil_clip (ClutterFixed x_offset, /* If the clip rect goes outside of the screen then use the extents of the rect instead */ - left_edge = MIN (-CFX_ONE, MIN (points[0], points[8])); - right_edge = MAX ( CFX_ONE, MAX (points[4], points[12])); - bottom_edge = MIN (-CFX_ONE, MIN (points[1], points[5])); - top_edge = MAX ( CFX_ONE, MAX (points[9], points[13])); + left_edge = MIN (-COGL_FIXED_1, MIN (points[0], points[8])); + right_edge = MAX ( COGL_FIXED_1, MAX (points[4], points[12])); + bottom_edge = MIN (-COGL_FIXED_1, MIN (points[1], points[5])); + top_edge = MAX ( COGL_FIXED_1, MAX (points[9], points[13])); /* Using the identity matrix for the projection and modelview matrix, draw the triangles around the inner @@ -626,7 +626,7 @@ _cogl_add_stencil_clip (ClutterFixed x_offset, } void -_cogl_set_matrix (const ClutterFixed *matrix) +_cogl_set_matrix (const CoglFixed *matrix) { GE( cogl_wrap_glLoadIdentity () ); GE( cogl_wrap_glMultMatrixx (matrix) ); @@ -649,23 +649,23 @@ _cogl_disable_clip_planes (void) void cogl_alpha_func (COGLenum func, - ClutterFixed ref) + CoglFixed ref) { - GE( cogl_wrap_glAlphaFunc (func, CLUTTER_FIXED_TO_FLOAT(ref)) ); + GE( cogl_wrap_glAlphaFunc (func, COGL_FIXED_TO_FLOAT(ref)) ); } /* * Fixed point implementation of the perspective function */ void -cogl_perspective (ClutterFixed fovy, - ClutterFixed aspect, - ClutterFixed zNear, - ClutterFixed zFar) +cogl_perspective (CoglFixed fovy, + CoglFixed aspect, + CoglFixed zNear, + CoglFixed zFar) { - ClutterFixed xmax, ymax; - ClutterFixed x, y, c, d; - ClutterFixed fovy_rad_half = CFX_MUL (fovy, CFX_PI) / 360; + CoglFixed xmax, ymax; + CoglFixed x, y, c, d; + CoglFixed fovy_rad_half = cogl_fixed_mul (fovy, COGL_FIXED_PI) / 360; GLfixed m[16]; @@ -683,51 +683,52 @@ cogl_perspective (ClutterFixed fovy, * same true for y, hence: a == 0 && b == 0; * * 2) When working with small numbers, we can are loosing significant - * precision, hence we use clutter_qmulx() here, not the fast macro. + * precision */ - ymax = clutter_qmulx (zNear, CFX_DIV (clutter_sinx (fovy_rad_half), - clutter_cosx (fovy_rad_half))); - xmax = clutter_qmulx (ymax, aspect); + ymax = cogl_fixed_mul (zNear, + cogl_fixed_div (cogl_fixed_sin (fovy_rad_half), + cogl_fixed_cos (fovy_rad_half))); + xmax = cogl_fixed_mul (ymax, aspect); - x = CFX_DIV (zNear, xmax); - y = CFX_DIV (zNear, ymax); - c = CFX_DIV (-(zFar + zNear), ( zFar - zNear)); - d = CFX_DIV (-(clutter_qmulx (2*zFar, zNear)), (zFar - zNear)); + x = cogl_fixed_div (zNear, xmax); + y = cogl_fixed_div (zNear, ymax); + c = cogl_fixed_div (-(zFar + zNear), ( zFar - zNear)); + d = cogl_fixed_div (-(cogl_fixed_mul (2 * zFar, zNear)), (zFar - zNear)); #define M(row,col) m[col*4+row] M(0,0) = x; M(1,1) = y; M(2,2) = c; M(2,3) = d; - M(3,2) = 1 + ~CFX_ONE; + M(3,2) = 1 + ~COGL_FIXED_1; GE( cogl_wrap_glMultMatrixx (m) ); GE( cogl_wrap_glMatrixMode (GL_MODELVIEW) ); /* Calculate and store the inverse of the matrix */ - memset (ctx->inverse_projection, 0, sizeof (ClutterFixed) * 16); + memset (ctx->inverse_projection, 0, sizeof (CoglFixed) * 16); #define m ctx->inverse_projection - M(0, 0) = CFX_QDIV (CFX_ONE, x); - M(1, 1) = CFX_QDIV (CFX_ONE, y); - M(2, 3) = -CFX_ONE; - M(3, 2) = CFX_QDIV (CFX_ONE, d); - M(3, 3) = CFX_QDIV (c, d); + M(0, 0) = cogl_fixed_div (COGL_FIXED_1, x); + M(1, 1) = cogl_fixed_div (COGL_FIXED_1, y); + M(2, 3) = -COGL_FIXED_1; + M(3, 2) = cogl_fixed_div (COGL_FIXED_1, d); + M(3, 3) = cogl_fixed_div (c, d); #undef m #undef M } void -cogl_frustum (ClutterFixed left, - ClutterFixed right, - ClutterFixed bottom, - ClutterFixed top, - ClutterFixed z_near, - ClutterFixed z_far) +cogl_frustum (CoglFixed left, + CoglFixed right, + CoglFixed bottom, + CoglFixed top, + CoglFixed z_near, + CoglFixed z_far) { - ClutterFixed c, d; + CoglFixed c, d; _COGL_GET_CONTEXT (ctx, NO_RETVAL); @@ -741,19 +742,19 @@ cogl_frustum (ClutterFixed left, GE( cogl_wrap_glMatrixMode (GL_MODELVIEW) ); /* Calculate and store the inverse of the matrix */ - memset (ctx->inverse_projection, 0, sizeof (ClutterFixed) * 16); + memset (ctx->inverse_projection, 0, sizeof (CoglFixed) * 16); - c = -CFX_QDIV (z_far + z_near, z_far - z_near); - d = -CFX_QDIV (2 * CFX_QMUL (z_far, z_near), z_far - z_near); + c = -cogl_fixed_div (z_far + z_near, z_far - z_near); + d = -cogl_fixed_div (2 * cogl_fixed_mul (z_far, z_near), z_far - z_near); #define M(row,col) ctx->inverse_projection[col*4+row] - M(0,0) = CFX_QDIV (right - left, 2 * z_near); - M(0,3) = CFX_QDIV (right + left, 2 * z_near); - M(1,1) = CFX_QDIV (top - bottom, 2 * z_near); - M(1,3) = CFX_QDIV (top + bottom, 2 * z_near); - M(2,3) = -CFX_ONE; - M(3,2) = CFX_QDIV (CFX_ONE, d); - M(3,3) = CFX_QDIV (c, d); + M(0,0) = cogl_fixed_div (right - left, 2 * z_near); + M(0,3) = cogl_fixed_div (right + left, 2 * z_near); + M(1,1) = cogl_fixed_div (top - bottom, 2 * z_near); + M(1,3) = cogl_fixed_div (top + bottom, 2 * z_near); + M(2,3) = -COGL_FIXED_1; + M(3,2) = cogl_fixed_div (COGL_FIXED_1, d); + M(3,3) = cogl_fixed_div (c, d); #undef M } @@ -767,14 +768,14 @@ cogl_viewport (guint width, void cogl_setup_viewport (guint w, guint h, - ClutterFixed fovy, - ClutterFixed aspect, - ClutterFixed z_near, - ClutterFixed z_far) + CoglFixed fovy, + CoglFixed aspect, + CoglFixed z_near, + CoglFixed z_far) { gint width = (gint) w; gint height = (gint) h; - ClutterFixed z_camera; + CoglFixed z_camera; GE( glViewport (0, 0, width, height) ); @@ -792,24 +793,24 @@ cogl_setup_viewport (guint w, * See comments in ../gl/cogl.c */ #define DEFAULT_Z_CAMERA 0.869f - z_camera = CLUTTER_FLOAT_TO_FIXED (DEFAULT_Z_CAMERA); + z_camera = COGL_FIXED_FROM_FLOAT (DEFAULT_Z_CAMERA); - if (fovy != CFX_60) - { - ClutterFixed fovy_rad = CFX_MUL (fovy, CFX_PI) / 180; + if (fovy != COGL_FIXED_60) + { + CoglFixed fovy_rad = cogl_fixed_mul (fovy, COGL_FIXED_PI) / 180; - z_camera = CFX_DIV (clutter_sinx (fovy_rad), - clutter_cosx (fovy_rad)) >> 1; - } + z_camera = cogl_fixed_div (cogl_fixed_sin (fovy_rad), + cogl_fixed_cos (fovy_rad)) >> 1; + } - GE( cogl_wrap_glTranslatex (-1 << 15, -1 << 15, -z_camera)); + GE( cogl_wrap_glTranslatex (-1 << 15, -1 << 15, -z_camera) ); - GE( cogl_wrap_glScalex ( CFX_ONE / width, - -CFX_ONE / height, - CFX_ONE / width)); + GE( cogl_wrap_glScalex ( COGL_FIXED_1 / width, + -COGL_FIXED_1 / height, + COGL_FIXED_1 / width) ); - GE( cogl_wrap_glTranslatex (0, -CFX_ONE * height, 0) ); + GE( cogl_wrap_glTranslatex (0, -COGL_FIXED_1 * height, 0) ); } static void @@ -860,19 +861,19 @@ cogl_features_available (CoglFeatureFlags features) } void -cogl_get_modelview_matrix (ClutterFixed m[16]) +cogl_get_modelview_matrix (CoglFixed m[16]) { cogl_wrap_glGetFixedv(GL_MODELVIEW_MATRIX, &m[0]); } void -cogl_get_projection_matrix (ClutterFixed m[16]) +cogl_get_projection_matrix (CoglFixed m[16]) { cogl_wrap_glGetFixedv(GL_PROJECTION_MATRIX, &m[0]); } void -cogl_get_viewport (ClutterFixed v[4]) +cogl_get_viewport (CoglFixed v[4]) { GLint viewport[4]; int i; @@ -880,7 +881,7 @@ cogl_get_viewport (ClutterFixed v[4]) cogl_wrap_glGetIntegerv (GL_VIEWPORT, viewport); for (i = 0; i < 4; i++) - v[i] = CLUTTER_INT_TO_FIXED (viewport[i]); + v[i] = COGL_FIXED_FROM_INT (viewport[i]); } void @@ -898,9 +899,9 @@ cogl_get_bitmasks (gint *red, gint *green, gint *blue, gint *alpha) void cogl_fog_set (const ClutterColor *fog_color, - ClutterFixed density, - ClutterFixed z_near, - ClutterFixed z_far) + CoglFixed density, + CoglFixed z_near, + CoglFixed z_far) { GLfixed fogColor[4];