mirror of
https://github.com/brl/mutter.git
synced 2024-11-27 18:40:40 -05:00
ec403b2805
These functions are defined to take an angle in degrees, so the angle needs
converting before calling the corresponding {sin,cos,tan,atan}f()
This fixes test-cogl-tex-tile.
334 lines
9.3 KiB
Diff
334 lines
9.3 KiB
Diff
diff --git a/clutter/clutter-fixed.h b/clutter/clutter-fixed.h
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index 3ae0916..5d150da 100644
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--- a/clutter/clutter-fixed.h
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+++ b/clutter/clutter-fixed.h
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@@ -39,126 +39,118 @@ G_BEGIN_DECLS
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*
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* Fixed point number (16.16)
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*/
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-typedef CoglFixed ClutterFixed;
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+typedef float ClutterFixed;
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/**
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* ClutterAngle:
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*
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- * Integer representation of an angle such that 1024 corresponds to
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- * full circle (i.e., 2*Pi).
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+ * An abstract representation of an angle.
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*/
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-typedef CoglAngle ClutterAngle; /* angle such that 1024 == 2*PI */
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+typedef float ClutterAngle;
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-#define CLUTTER_ANGLE_FROM_DEG(x) (COGL_ANGLE_FROM_DEG (x))
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-#define CLUTTER_ANGLE_FROM_DEGX(x) (COGL_ANGLE_FROM_DEGX (x))
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-#define CLUTTER_ANGLE_TO_DEG(x) (COGL_ANGLE_TO_DEG (x))
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-#define CLUTTER_ANGLE_TO_DEGX(x) (COGL_ANGLE_TO_DEGX (x))
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+#define CLUTTER_ANGLE_FROM_DEG(x) ((float)(x))
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+#define CLUTTER_ANGLE_FROM_DEGX(x) (CLUTTER_FIXED_TO_FLOAT (x))
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+#define CLUTTER_ANGLE_TO_DEG(x) ((float)(x))
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+#define CLUTTER_ANGLE_TO_DEGX(x) (CLUTTER_FLOAT_TO_FIXED (x))
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/*
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* some commonly used constants
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*/
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/**
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- * CFX_Q:
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- *
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- * Size in bits of decimal part of floating point value.
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- */
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-#define CFX_Q COGL_FIXED_Q
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-
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-/**
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* CFX_ONE:
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*
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* 1.0 represented as a fixed point value.
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*/
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-#define CFX_ONE COGL_FIXED_1
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+#define CFX_ONE 1.0
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/**
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* CFX_HALF:
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*
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* 0.5 represented as a fixed point value.
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*/
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-#define CFX_HALF COGL_FIXED_0_5
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+#define CFX_HALF 0.5
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/**
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* CFX_MAX:
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*
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* Maximum fixed point value.
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*/
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-#define CFX_MAX COGL_FIXED_MAX
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+#define CFX_MAX G_MAXFLOAT
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/**
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* CFX_MIN:
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*
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* Minimum fixed point value.
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*/
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-#define CFX_MIN COGL_FIXED_MIN
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+#define CFX_MIN (-G_MAXFLOAT)
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/**
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* CFX_PI:
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*
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* Fixed point representation of Pi
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*/
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-#define CFX_PI COGL_FIXED_PI
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+#define CFX_PI G_PI
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/**
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* CFX_2PI:
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*
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* Fixed point representation of Pi*2
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*/
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-#define CFX_2PI COGL_FIXED_2_PI
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+#define CFX_2PI (G_PI * 2)
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/**
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* CFX_PI_2:
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*
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* Fixed point representation of Pi/2
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*/
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-#define CFX_PI_2 COGL_FIXED_PI_2
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+#define CFX_PI_2 (G_PI / 2)
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/**
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* CFX_PI_4:
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*
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* Fixed point representation of Pi/4
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*/
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-#define CFX_PI_4 COGL_FIXED_PI_4
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+#define CFX_PI_4 (G_PI / 4)
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/**
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* CFX_360:
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*
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* Fixed point representation of the number 360
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*/
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-#define CFX_360 COGL_FIXED_360
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+#define CFX_360 360.0
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/**
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* CFX_240:
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*
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* Fixed point representation of the number 240
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*/
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-#define CFX_240 COGL_FIXED_240
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+#define CFX_240 240.0
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/**
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* CFX_180:
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*
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* Fixed point representation of the number 180
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*/
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-#define CFX_180 COGL_FIXED_180
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+#define CFX_180 180.0
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/**
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* CFX_120:
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*
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* Fixed point representation of the number 120
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*/
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-#define CFX_120 COGL_FIXED_120
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+#define CFX_120 120.0
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/**
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* CFX_60:
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*
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* Fixed point representation of the number 60
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*/
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-#define CFX_60 COGL_FIXED_60
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+#define CFX_60 60.0
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/**
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* CFX_RADIANS_TO_DEGREES:
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*
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* Fixed point representation of the number 180 / pi
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*/
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-#define CFX_RADIANS_TO_DEGREES COGL_RADIANS_TO_DEGREES
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+#define CFX_RADIANS_TO_DEGREES (180.0 / G_PI)
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/**
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* CFX_255:
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*
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* Fixed point representation of the number 255
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*/
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-#define CFX_255 COGL_FIXED_255
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+#define CFX_255 255.0
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/**
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* CLUTTER_FIXED_TO_FLOAT:
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@@ -166,7 +158,7 @@ typedef CoglAngle ClutterAngle; /* angle such that 1024 == 2*PI */
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*
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* Convert a fixed point value to float.
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*/
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-#define CLUTTER_FIXED_TO_FLOAT(x) COGL_FIXED_TO_FLOAT ((x))
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+#define CLUTTER_FIXED_TO_FLOAT(x) (x)
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/**
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* CLUTTER_FIXED_TO_DOUBLE:
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@@ -174,7 +166,7 @@ typedef CoglAngle ClutterAngle; /* angle such that 1024 == 2*PI */
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*
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* Convert a fixed point value to double.
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*/
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-#define CLUTTER_FIXED_TO_DOUBLE(x) COGL_FIXED_TO_DOUBLE ((x))
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+#define CLUTTER_FIXED_TO_DOUBLE(x) ((double)(x))
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/**
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* CLUTTER_FLOAT_TO_FIXED:
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@@ -182,7 +174,7 @@ typedef CoglAngle ClutterAngle; /* angle such that 1024 == 2*PI */
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*
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* Convert a float value to fixed.
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*/
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-#define CLUTTER_FLOAT_TO_FIXED(x) COGL_FIXED_FROM_FLOAT ((x))
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+#define CLUTTER_FLOAT_TO_FIXED(x) ((x))
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/**
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* CLUTTER_FLOAT_TO_INT:
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@@ -190,7 +182,7 @@ typedef CoglAngle ClutterAngle; /* angle such that 1024 == 2*PI */
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*
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* Convert a float value to int.
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*/
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-#define CLUTTER_FLOAT_TO_INT(x) COGL_FLOAT_TO_INT ((x))
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+#define CLUTTER_FLOAT_TO_INT(x) ((int)(x))
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/**
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* CLUTTER_FLOAT_TO_UINT:
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@@ -198,7 +190,7 @@ typedef CoglAngle ClutterAngle; /* angle such that 1024 == 2*PI */
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*
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* Convert a float value to unsigned int.
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*/
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-#define CLUTTER_FLOAT_TO_UINT(x) COGL_FLOAT_TO_UINT ((x))
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+#define CLUTTER_FLOAT_TO_UINT(x) ((unsigned int)(x))
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/**
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* CLUTTER_INT_TO_FIXED:
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@@ -206,7 +198,7 @@ typedef CoglAngle ClutterAngle; /* angle such that 1024 == 2*PI */
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*
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* Convert an integer value to fixed point.
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*/
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-#define CLUTTER_INT_TO_FIXED(x) COGL_FIXED_FROM_INT ((x))
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+#define CLUTTER_INT_TO_FIXED(x) ((float)(x))
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/**
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* CLUTTER_FIXED_TO_INT:
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@@ -216,7 +208,7 @@ typedef CoglAngle ClutterAngle; /* angle such that 1024 == 2*PI */
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*
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* Since: 0.6
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*/
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-#define CLUTTER_FIXED_TO_INT(x) COGL_FIXED_TO_INT ((x))
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+#define CLUTTER_FIXED_TO_INT(x) ((int)(x))
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/**
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* CLUTTER_FIXED_FRACTION:
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@@ -224,7 +216,7 @@ typedef CoglAngle ClutterAngle; /* angle such that 1024 == 2*PI */
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*
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* Retrieves the fractionary part of a fixed point value
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*/
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-#define CLUTTER_FIXED_FRACTION(x) COGL_FIXED_FRACTION ((x))
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+#define CLUTTER_FIXED_FRACTION(x) ((x)-floorf (x))
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/**
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* CLUTTER_FIXED_FLOOR:
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@@ -232,7 +224,7 @@ typedef CoglAngle ClutterAngle; /* angle such that 1024 == 2*PI */
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*
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* Round down a fixed point value to an integer.
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*/
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-#define CLUTTER_FIXED_FLOOR(x) COGL_FIXED_FLOOR ((x))
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+#define CLUTTER_FIXED_FLOOR(x) (floorf (x))
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/**
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* CLUTTER_FIXED_CEIL:
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@@ -240,7 +232,7 @@ typedef CoglAngle ClutterAngle; /* angle such that 1024 == 2*PI */
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*
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* Round up a fixed point value to an integer.
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*/
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-#define CLUTTER_FIXED_CEIL(x) COGL_FIXED_CEIL ((x))
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+#define CLUTTER_FIXED_CEIL(x) (ceilf (x))
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/**
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* CLUTTER_FIXED_MUL:
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@@ -249,7 +241,7 @@ typedef CoglAngle ClutterAngle; /* angle such that 1024 == 2*PI */
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*
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* Multiply two fixed point values
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*/
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-#define CLUTTER_FIXED_MUL(x,y) COGL_FIXED_MUL ((x), (y))
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+#define CLUTTER_FIXED_MUL(x,y) ((x) * (y))
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/**
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* CLUTTER_FIXED_DIV:
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@@ -258,54 +250,16 @@ typedef CoglAngle ClutterAngle; /* angle such that 1024 == 2*PI */
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*
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* Divide two fixed point values
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*/
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-#define CLUTTER_FIXED_DIV(x,y) COGL_FIXED_DIV ((x), (y))
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-
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-#define clutter_qmulx(x,y) cogl_fixed_mul ((x), (y))
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-#define clutter_qdivx(x,y) cogl_fixed_div ((x), (y))
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-
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-#define clutter_sinx(a) cogl_fixed_sin ((a))
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-#define clutter_sini(a) cogl_angle_sin ((a))
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-#define clutter_tani(a) cogl_angle_tan ((a))
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-#define clutter_atani(a) cogl_fixed_atan ((a))
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-#define clutter_atan2i(x,y) cogl_fixed_atan2 ((x), (y))
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-#define clutter_cosx(a) cogl_fixed_cos ((a))
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-#define clutter_cosi(a) cogl_angle_cos ((a))
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-
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-/**
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- * CLUTTER_SQRTI_ARG_MAX
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- *
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- * Maximum argument that can be passed to #clutter_sqrti function.
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- *
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- * Since: 0.6
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- */
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-#define CLUTTER_SQRTI_ARG_MAX COGL_SQRTI_ARG_MAX
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-
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-/**
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- * CLUTTER_SQRTI_ARG_5_PERCENT
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- *
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- * Maximum argument that can be passed to #clutter_sqrti for which the
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- * resulting error is < 5%
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- *
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- * Since: 0.6
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- */
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-#define CLUTTER_SQRTI_ARG_5_PERCENT COGL_SQRTI_ARG_5_PERCENT
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-
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-/**
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- * CLUTTER_SQRTI_ARG_10_PERCENT
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- *
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- * Maximum argument that can be passed to #clutter_sqrti for which the
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- * resulting error is < 10%
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- *
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- * Since: 0.6
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- */
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-#define CLUTTER_SQRTI_ARG_10_PERCENT COGL_SQRTI_ARG_10_PERCENT
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+#define CLUTTER_FIXED_DIV(x,y) ((x) / (y))
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-#define clutter_sqrtx(x) cogl_fixed_sqrt ((x))
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-#define clutter_sqrti(x) cogl_sqrti ((x))
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+#define clutter_qmulx(x,y) ((x) * (y))
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+#define clutter_qdivx(x,y) ((x) / (y))
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-#define clutter_log2x(x) cogl_fixed_log2 ((x))
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-#define clutter_pow2x(x) cogl_fixed_pow2 ((x))
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-#define clutter_powx(x,y) cogl_fixed_pow ((x), (y))
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+#define clutter_sinx(a) sinf (a * (G_PI/180.0))
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+#define clutter_tanx(a) tanf (a * (G_PI/180.0))
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+#define clutter_atanx(a) atanf (a * (G_PI/180.0))
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+#define clutter_atan2x(x,y) atan2f (x, y)
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+#define clutter_cosx(a) cosf (a * (G_PI/180.0))
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#define CLUTTER_TYPE_FIXED (clutter_fixed_get_type ())
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#define CLUTTER_TYPE_PARAM_FIXED (clutter_param_fixed_get_type ())
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@@ -331,7 +285,7 @@ typedef struct _ClutterParamSpecFixed ClutterParamSpecFixed;
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*
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* Since: 0.8
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*/
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-#define CLUTTER_MAXFIXED COGL_FIXED_MAX
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+#define CLUTTER_MAXFIXED G_MAXFLOAT
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/**
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* CLUTTER_MINFIXED:
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@@ -340,7 +294,7 @@ typedef struct _ClutterParamSpecFixed ClutterParamSpecFixed;
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*
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* Since: 0.8
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*/
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-#define CLUTTER_MINFIXED COGL_FIXED_MIN
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+#define CLUTTER_MINFIXED (-G_MAXFLOAT)
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/**
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* ClutterParamSpecFixed
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