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2007-10-12 Tomas Frydrych <tf@o-hand.com>

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* clutter/clutter-actor.c:
        * clutter/clutter-backend.c:
        * clutter/clutter-behaviour-depth.c:
        * clutter/clutter-box.c:
        * clutter/clutter-clone-texture.c:
        * clutter/clutter-container.c:
        * clutter/clutter-entry.c:
        * clutter/clutter-feature.c:
        * clutter/clutter-fixed.c:
        * clutter/clutter-group.c:
        * clutter/clutter-hbox.c:
        * clutter/clutter-label.c:
        * clutter/clutter-layout.c:
        * clutter/clutter-media.c:
        * clutter/clutter-rectangle.c:
        * clutter/clutter-score.c:
        * clutter/clutter-script.c:
        * clutter/clutter-stage.c:
        * clutter/clutter-texture.c:
        * clutter/clutter-timeline.c:
        * clutter/clutter-timeout-pool.c:
        * clutter/clutter-vbox.c:
        * clutter/cogl/gl/cogl.c:
        * clutter/cogl/gles/cogl.c:
        * clutter/eglnative/clutter-backend-egl.c:
        * clutter/eglnative/clutter-event-egl.c:
        * clutter/eglnative/clutter-stage-egl.c:
        * clutter/eglx/clutter-backend-egl.c:
        * clutter/eglx/clutter-event-egl.c:
        * clutter/eglx/clutter-stage-egl.c:
        * clutter/glx/clutter-event-glx.c:
        * clutter/json/json-array.c:
        * clutter/json/json-generator.c:
        * clutter/json/json-node.c:
        * clutter/json/json-object.c:
        * clutter/json/json-parser.c:
        * clutter/sdl/clutter-backend-sdl.c:
        * clutter/sdl/clutter-event-sdl.c:
        * clutter/sdl/clutter-stage-sdl.c:

	Fixedup config.h inclusion (must always be bracketed with #ifdef
	HAVE_CONFIG_H).
This commit is contained in:
Tomas Frydrych
2007-10-12 08:17:00 +00:00
parent 422c725a47
commit abd6832dd9
40 changed files with 1003 additions and 883 deletions
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218
clutter/clutter-fixed.c
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@ -23,10 +23,12 @@
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <clutter-fixed.h>
#include <clutter-private.h>
#include <clutter-private.h>
/**
* SECTION:clutter-fixed
@ -39,7 +41,7 @@
* math for fixed-to-floating and floating-to-fixed conversion.
*
* It is no recommened for use on platforms with a floating point unit
* (eg desktop systems) nor for use in bindings.
* (eg desktop systems) nor for use in bindings.
*
* Basic rules of Fixed Point arithmethic:
*
@ -152,7 +154,7 @@ static ClutterFixed sin_tbl [] =
* @angle: a #ClutterFixed angle in radians
*
* Fixed point implementation of sine function
*
*
* Return value: #ClutterFixed sine value.
*
* Since: 0.2
@ -169,7 +171,7 @@ clutter_sinx (ClutterFixed angle)
sign = 1 + ~sign;
angle = 1 + ~angle;
}
/* reduce to <0, 2*pi) */
if (angle >= CFX_2PI)
{
@ -218,7 +220,7 @@ clutter_sinx (ClutterFixed angle)
{
indx2 = indx1 + 1;
}
low = sin_tbl[indx1];
high = sin_tbl[indx2];
@ -229,7 +231,7 @@ clutter_sinx (ClutterFixed angle)
if (sign < 0)
angle = (1 + ~angle);
return angle;
}
@ -241,7 +243,7 @@ clutter_sinx (ClutterFixed angle)
*
* ClutterAngle is an integer such that 1024 represents
* full circle.
*
*
* Return value: #ClutterFixed sine value.
*
* Since: 0.2
@ -258,10 +260,10 @@ clutter_sini (ClutterAngle angle)
sign = 1 + ~sign;
angle = 1 + ~angle;
}
/* reduce to <0, 2*pi) */
angle &= 0x3ff;
/* reduce to first quadrant and sign */
if (angle > 512)
{
@ -287,10 +289,10 @@ clutter_sini (ClutterAngle angle)
}
result = sin_tbl[angle];
if (sign < 0)
result = (1 + ~result);
return result;
}
@ -301,71 +303,71 @@ clutter_sini (ClutterAngle angle)
*/
static ClutterFixed 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,
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,
};
/**
@ -376,7 +378,7 @@ static ClutterFixed tan_tbl [] =
*
* ClutterAngle is an integer such that 1024 represents
* full circle.
*
*
* Return value: #ClutterFixed sine value.
*
* Since: 0.3
@ -393,10 +395,10 @@ clutter_tani (ClutterAngle angle)
sign = 1 + ~sign;
angle = 1 + ~angle;
}
/* reduce to <0, pi) */
angle &= 0x1ff;
/* reduce to first quadrant and sign */
if (angle > 256)
{
@ -405,10 +407,10 @@ clutter_tani (ClutterAngle angle)
}
result = tan_tbl[angle];
if (sign < 0)
result = (1 + ~result);
return result;
}
@ -515,7 +517,7 @@ clutter_sqrtx (ClutterFixed x)
unsigned int mask = 0x40000000;
unsigned fract = x & 0x0000ffff;
unsigned int d1, d2;
if (x <= 0)
return 0;
@ -555,9 +557,9 @@ clutter_sqrtx (ClutterFixed x)
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.
@ -586,14 +588,14 @@ clutter_sqrtx (ClutterFixed x)
*/
d1 = (unsigned)(fract) >> 12;
d2 = ((unsigned)CFX_ONE >> 12) - d1;
x = ((v1*d2) + (v2*d1))/(CFX_ONE >> 12);
if (sh > 0)
x = x << sh;
else if (sh < 0)
x = (x >> (1 + ~sh));
return x;
}
@ -602,7 +604,7 @@ clutter_sqrtx (ClutterFixed x)
* @x: integer value
*
* Very fast fixed point implementation of square root for integers.
*
*
* This function is about 10x faster than clib sqrt() on x86, and (this is
* not a typo!) more than 800x faster on ARM without FPU. It's error is < 5%
* for arguments < 132 and < 10% for arguments < 5591.
@ -645,9 +647,9 @@ clutter_sqrti (gint number)
float f;
guint32 i;
} flt, flt2;
flt.f = number;
x = CLUTTER_INT_TO_FIXED (number) / 2;
/* The QIII initial estimate */
@ -655,11 +657,11 @@ clutter_sqrti (gint number)
/* 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
@ -708,13 +710,13 @@ clutter_qmulx (ClutterFixed op1, ClutterFixed op2)
* 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"(op1), "r"(op2), "i"(CFX_Q), "i"(32-CFX_Q));
return (ClutterFixed) res_low;
#else
long long r = (long long) op1 * (long long) op2;
@ -730,7 +732,7 @@ clutter_qmulx (ClutterFixed op1, ClutterFixed op2)
* 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 mantisa serves as a good error-correction.
*
*
* The implemenation here uses a quadratic error correction as described by
* Ian Stephenson at http://www.dctsystems.co.uk/Software/power.html.
*/
@ -754,26 +756,26 @@ clutter_log2x (guint x)
/* Note: we could easily have a version for ClutterFixed x, but the int
* precission is enough for the current purposes.
*/
union
union
{
float f;
ClutterFixed i;
} flt;
ClutterFixed magic = 0x58bb;
ClutterFixed 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 >>= 7;
flt.i -= CLUTTER_INT_TO_FIXED (127);
y = CLUTTER_FIXED_FRACTION (flt.i);
y = CFX_MUL ((y - CFX_MUL (y, y)), magic);
return flt.i + y;
@ -799,13 +801,13 @@ clutter_pow2x (ClutterFixed x)
* but the the range would be limited to x < 15, and the int precission
* is enough for the current purposes.
*/
union
union
{
float f;
guint32 i;
} flt;
ClutterFixed magic = 0x56f7;
ClutterFixed y;
@ -835,7 +837,7 @@ clutter_pow2x (ClutterFixed x)
* @x: base
* @y: #ClutterFixed exponent
*
* Calculates x to y power. (Note, if x is a constant it will be faster to
* Calculates x to y power. (Note, if x is a constant it will be faster to
* calculate the power as clutter_pow2x (CLUTTER_FIXED_MUL(y, log2 (x)))
*
* Return value: x in y power.
@ -861,7 +863,7 @@ const double _magic = 68719476736.0*1.5;
#define CFX_NO_FAST_CONVERSIONS
#endif
/*
/*
* clutter_double_to_fixed :
* @value: value to be converted
*
@ -877,7 +879,7 @@ _clutter_double_to_fixed (double val)
#ifdef CFX_NO_FAST_CONVERSIONS
return (ClutterFixed)(val * (double)CFX_ONE);
#else
union
union
{
double d;
unsigned int i[2];
@ -906,7 +908,7 @@ _clutter_double_to_int (double val)
#ifdef CFX_NO_FAST_CONVERSIONS
return (gint)(val);
#else
union
union
{
double d;
unsigned int i[2];
@ -924,7 +926,7 @@ _clutter_double_to_uint (double val)
#ifdef CFX_NO_FAST_CONVERSIONS
return (guint)(val);
#else
union
union
{
double d;
unsigned int i[2];