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Diffstat (limited to 'src/gallium/auxiliary/util/u_pack_color.h')
-rw-r--r--src/gallium/auxiliary/util/u_pack_color.h189
1 files changed, 95 insertions, 94 deletions
diff --git a/src/gallium/auxiliary/util/u_pack_color.h b/src/gallium/auxiliary/util/u_pack_color.h
index eda883b3b9..43eb0153ee 100644
--- a/src/gallium/auxiliary/util/u_pack_color.h
+++ b/src/gallium/auxiliary/util/u_pack_color.h
@@ -37,106 +37,110 @@
#include "pipe/p_compiler.h"
#include "pipe/p_format.h"
+#include "util/u_format.h"
#include "util/u_math.h"
+
+union util_color {
+ ubyte ub;
+ ushort us;
+ uint ui;
+ float f[4];
+};
+
/**
* Pack ubyte R,G,B,A into dest pixel.
*/
static INLINE void
util_pack_color_ub(ubyte r, ubyte g, ubyte b, ubyte a,
- enum pipe_format format, void *dest)
+ enum pipe_format format, union util_color *uc)
{
switch (format) {
case PIPE_FORMAT_R8G8B8A8_UNORM:
{
- uint *d = (uint *) dest;
- *d = (r << 24) | (g << 16) | (b << 8) | a;
+ uc->ui = (r << 24) | (g << 16) | (b << 8) | a;
}
return;
case PIPE_FORMAT_R8G8B8X8_UNORM:
{
- uint *d = (uint *) dest;
- *d = (r << 24) | (g << 16) | (b << 8) | 0xff;
+ uc->ui = (r << 24) | (g << 16) | (b << 8) | 0xff;
}
return;
case PIPE_FORMAT_A8R8G8B8_UNORM:
{
- uint *d = (uint *) dest;
- *d = (a << 24) | (r << 16) | (g << 8) | b;
+ uc->ui = (a << 24) | (r << 16) | (g << 8) | b;
}
return;
case PIPE_FORMAT_X8R8G8B8_UNORM:
{
- uint *d = (uint *) dest;
- *d = (0xff << 24) | (r << 16) | (g << 8) | b;
+ uc->ui = (0xff << 24) | (r << 16) | (g << 8) | b;
}
return;
case PIPE_FORMAT_B8G8R8A8_UNORM:
{
- uint *d = (uint *) dest;
- *d = (b << 24) | (g << 16) | (r << 8) | a;
+ uc->ui = (b << 24) | (g << 16) | (r << 8) | a;
}
return;
case PIPE_FORMAT_B8G8R8X8_UNORM:
{
- uint *d = (uint *) dest;
- *d = (b << 24) | (g << 16) | (r << 8) | 0xff;
+ uc->ui = (b << 24) | (g << 16) | (r << 8) | 0xff;
}
return;
case PIPE_FORMAT_R5G6B5_UNORM:
{
- ushort *d = (ushort *) dest;
- *d = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | (b >> 3);
+ uc->us = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | (b >> 3);
}
return;
case PIPE_FORMAT_A1R5G5B5_UNORM:
{
- ushort *d = (ushort *) dest;
- *d = ((a & 0x80) << 8) | ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | (b >> 3);
+ uc->us = ((a & 0x80) << 8) | ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | (b >> 3);
}
return;
case PIPE_FORMAT_A4R4G4B4_UNORM:
{
- ushort *d = (ushort *) dest;
- *d = ((a & 0xf0) << 8) | ((r & 0xf0) << 4) | ((g & 0xf0) << 0) | (b >> 4);
+ uc->us = ((a & 0xf0) << 8) | ((r & 0xf0) << 4) | ((g & 0xf0) << 0) | (b >> 4);
}
return;
case PIPE_FORMAT_A8_UNORM:
{
- ubyte *d = (ubyte *) dest;
- *d = a;
+ uc->ub = a;
}
return;
case PIPE_FORMAT_L8_UNORM:
case PIPE_FORMAT_I8_UNORM:
{
- ubyte *d = (ubyte *) dest;
- *d = r;
+ uc->ub = a;
}
return;
case PIPE_FORMAT_R32G32B32A32_FLOAT:
{
- float *d = (float *) dest;
- d[0] = (float)r / 255.0f;
- d[1] = (float)g / 255.0f;
- d[2] = (float)b / 255.0f;
- d[3] = (float)a / 255.0f;
+ uc->f[0] = (float)r / 255.0f;
+ uc->f[1] = (float)g / 255.0f;
+ uc->f[2] = (float)b / 255.0f;
+ uc->f[3] = (float)a / 255.0f;
}
return;
case PIPE_FORMAT_R32G32B32_FLOAT:
{
- float *d = (float *) dest;
- d[0] = (float)r / 255.0f;
- d[1] = (float)g / 255.0f;
- d[2] = (float)b / 255.0f;
+ uc->f[0] = (float)r / 255.0f;
+ uc->f[1] = (float)g / 255.0f;
+ uc->f[2] = (float)b / 255.0f;
}
return;
- /* XXX lots more cases to add */
+ /* Handle other cases with a generic function.
+ */
default:
- debug_print_format("gallium: unhandled format in util_pack_color_ub()", format);
- assert(0);
+ {
+ ubyte src[4];
+
+ src[0] = r;
+ src[1] = g;
+ src[2] = b;
+ src[3] = a;
+ util_format_write_4ub(format, src, 0, uc, 0, 0, 0, 1, 1);
+ }
}
}
@@ -145,13 +149,13 @@ util_pack_color_ub(ubyte r, ubyte g, ubyte b, ubyte a,
* Unpack RGBA from a packed pixel, returning values as ubytes in [0,255].
*/
static INLINE void
-util_unpack_color_ub(enum pipe_format format, const void *src,
+util_unpack_color_ub(enum pipe_format format, union util_color *uc,
ubyte *r, ubyte *g, ubyte *b, ubyte *a)
{
switch (format) {
case PIPE_FORMAT_R8G8B8A8_UNORM:
{
- uint p = ((const uint *) src)[0];
+ uint p = uc->ui;
*r = (ubyte) ((p >> 24) & 0xff);
*g = (ubyte) ((p >> 16) & 0xff);
*b = (ubyte) ((p >> 8) & 0xff);
@@ -160,7 +164,7 @@ util_unpack_color_ub(enum pipe_format format, const void *src,
return;
case PIPE_FORMAT_R8G8B8X8_UNORM:
{
- uint p = ((const uint *) src)[0];
+ uint p = uc->ui;
*r = (ubyte) ((p >> 24) & 0xff);
*g = (ubyte) ((p >> 16) & 0xff);
*b = (ubyte) ((p >> 8) & 0xff);
@@ -169,7 +173,7 @@ util_unpack_color_ub(enum pipe_format format, const void *src,
return;
case PIPE_FORMAT_A8R8G8B8_UNORM:
{
- uint p = ((const uint *) src)[0];
+ uint p = uc->ui;
*r = (ubyte) ((p >> 16) & 0xff);
*g = (ubyte) ((p >> 8) & 0xff);
*b = (ubyte) ((p >> 0) & 0xff);
@@ -178,7 +182,7 @@ util_unpack_color_ub(enum pipe_format format, const void *src,
return;
case PIPE_FORMAT_X8R8G8B8_UNORM:
{
- uint p = ((const uint *) src)[0];
+ uint p = uc->ui;
*r = (ubyte) ((p >> 16) & 0xff);
*g = (ubyte) ((p >> 8) & 0xff);
*b = (ubyte) ((p >> 0) & 0xff);
@@ -187,7 +191,7 @@ util_unpack_color_ub(enum pipe_format format, const void *src,
return;
case PIPE_FORMAT_B8G8R8A8_UNORM:
{
- uint p = ((const uint *) src)[0];
+ uint p = uc->ui;
*r = (ubyte) ((p >> 8) & 0xff);
*g = (ubyte) ((p >> 16) & 0xff);
*b = (ubyte) ((p >> 24) & 0xff);
@@ -196,7 +200,7 @@ util_unpack_color_ub(enum pipe_format format, const void *src,
return;
case PIPE_FORMAT_B8G8R8X8_UNORM:
{
- uint p = ((const uint *) src)[0];
+ uint p = uc->ui;
*r = (ubyte) ((p >> 8) & 0xff);
*g = (ubyte) ((p >> 16) & 0xff);
*b = (ubyte) ((p >> 24) & 0xff);
@@ -205,7 +209,7 @@ util_unpack_color_ub(enum pipe_format format, const void *src,
return;
case PIPE_FORMAT_R5G6B5_UNORM:
{
- ushort p = ((const ushort *) src)[0];
+ ushort p = uc->us;
*r = (ubyte) (((p >> 8) & 0xf8) | ((p >> 13) & 0x7));
*g = (ubyte) (((p >> 3) & 0xfc) | ((p >> 9) & 0x3));
*b = (ubyte) (((p << 3) & 0xf8) | ((p >> 2) & 0x7));
@@ -214,7 +218,7 @@ util_unpack_color_ub(enum pipe_format format, const void *src,
return;
case PIPE_FORMAT_A1R5G5B5_UNORM:
{
- ushort p = ((const ushort *) src)[0];
+ ushort p = uc->us;
*r = (ubyte) (((p >> 7) & 0xf8) | ((p >> 12) & 0x7));
*g = (ubyte) (((p >> 2) & 0xf8) | ((p >> 7) & 0x7));
*b = (ubyte) (((p << 3) & 0xf8) | ((p >> 2) & 0x7));
@@ -223,7 +227,7 @@ util_unpack_color_ub(enum pipe_format format, const void *src,
return;
case PIPE_FORMAT_A4R4G4B4_UNORM:
{
- ushort p = ((const ushort *) src)[0];
+ ushort p = uc->us;
*r = (ubyte) (((p >> 4) & 0xf0) | ((p >> 8) & 0xf));
*g = (ubyte) (((p >> 0) & 0xf0) | ((p >> 4) & 0xf));
*b = (ubyte) (((p << 4) & 0xf0) | ((p >> 0) & 0xf));
@@ -232,27 +236,27 @@ util_unpack_color_ub(enum pipe_format format, const void *src,
return;
case PIPE_FORMAT_A8_UNORM:
{
- ubyte p = ((const ubyte *) src)[0];
+ ubyte p = uc->ub;
*r = *g = *b = (ubyte) 0xff;
*a = p;
}
return;
case PIPE_FORMAT_L8_UNORM:
{
- ubyte p = ((const ubyte *) src)[0];
+ ubyte p = uc->ub;
*r = *g = *b = p;
*a = (ubyte) 0xff;
}
return;
case PIPE_FORMAT_I8_UNORM:
{
- ubyte p = ((const ubyte *) src)[0];
+ ubyte p = uc->ub;
*r = *g = *b = *a = p;
}
return;
case PIPE_FORMAT_R32G32B32A32_FLOAT:
{
- const float *p = (const float *) src;
+ const float *p = &uc->f[0];
*r = float_to_ubyte(p[0]);
*g = float_to_ubyte(p[1]);
*b = float_to_ubyte(p[2]);
@@ -261,7 +265,7 @@ util_unpack_color_ub(enum pipe_format format, const void *src,
return;
case PIPE_FORMAT_R32G32B32_FLOAT:
{
- const float *p = (const float *) src;
+ const float *p = &uc->f[0];
*r = float_to_ubyte(p[0]);
*g = float_to_ubyte(p[1]);
*b = float_to_ubyte(p[2]);
@@ -271,7 +275,7 @@ util_unpack_color_ub(enum pipe_format format, const void *src,
case PIPE_FORMAT_R32G32_FLOAT:
{
- const float *p = (const float *) src;
+ const float *p = &uc->f[0];
*r = float_to_ubyte(p[0]);
*g = float_to_ubyte(p[1]);
*b = *a = (ubyte) 0xff;
@@ -280,31 +284,40 @@ util_unpack_color_ub(enum pipe_format format, const void *src,
case PIPE_FORMAT_R32_FLOAT:
{
- const float *p = (const float *) src;
+ const float *p = &uc->f[0];
*r = float_to_ubyte(p[0]);
*g = *b = *a = (ubyte) 0xff;
}
return;
- /* XXX lots more cases to add */
+ /* Handle other cases with a generic function.
+ */
default:
- debug_print_format("gallium: unhandled format in util_unpack_color_ub()",
- format);
- assert(0);
+ {
+ ubyte dst[4];
+
+ util_format_read_4ub(format, dst, 0, uc, 0, 0, 0, 1, 1);
+ *r = dst[0];
+ *g = dst[1];
+ *b = dst[2];
+ *a = dst[3];
+ }
}
}
-
/**
* Note rgba outside [0,1] will be clamped for int pixel formats.
*/
static INLINE void
-util_pack_color(const float rgba[4], enum pipe_format format, void *dest)
+util_pack_color(const float rgba[4], enum pipe_format format, union util_color *uc)
{
- ubyte r, g, b, a;
+ ubyte r = 0;
+ ubyte g = 0;
+ ubyte b = 0;
+ ubyte a = 0;
- if (pf_size_x(format) <= 8) {
+ if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 0) <= 8) {
/* format uses 8-bit components or less */
r = float_to_ubyte(rgba[0]);
g = float_to_ubyte(rgba[1]);
@@ -315,92 +328,80 @@ util_pack_color(const float rgba[4], enum pipe_format format, void *dest)
switch (format) {
case PIPE_FORMAT_R8G8B8A8_UNORM:
{
- uint *d = (uint *) dest;
- *d = (r << 24) | (g << 16) | (b << 8) | a;
+ uc->ui = (r << 24) | (g << 16) | (b << 8) | a;
}
return;
case PIPE_FORMAT_R8G8B8X8_UNORM:
{
- uint *d = (uint *) dest;
- *d = (r << 24) | (g << 16) | (b << 8) | 0xff;
+ uc->ui = (r << 24) | (g << 16) | (b << 8) | 0xff;
}
return;
case PIPE_FORMAT_A8R8G8B8_UNORM:
{
- uint *d = (uint *) dest;
- *d = (a << 24) | (r << 16) | (g << 8) | b;
+ uc->ui = (a << 24) | (r << 16) | (g << 8) | b;
}
return;
case PIPE_FORMAT_X8R8G8B8_UNORM:
{
- uint *d = (uint *) dest;
- *d = (0xff << 24) | (r << 16) | (g << 8) | b;
+ uc->ui = (0xff << 24) | (r << 16) | (g << 8) | b;
}
return;
case PIPE_FORMAT_B8G8R8A8_UNORM:
{
- uint *d = (uint *) dest;
- *d = (b << 24) | (g << 16) | (r << 8) | a;
+ uc->ui = (b << 24) | (g << 16) | (r << 8) | a;
}
return;
case PIPE_FORMAT_B8G8R8X8_UNORM:
{
- uint *d = (uint *) dest;
- *d = (b << 24) | (g << 16) | (r << 8) | 0xff;
+ uc->ui = (b << 24) | (g << 16) | (r << 8) | 0xff;
}
return;
case PIPE_FORMAT_R5G6B5_UNORM:
{
- ushort *d = (ushort *) dest;
- *d = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | (b >> 3);
+ uc->us = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | (b >> 3);
}
return;
case PIPE_FORMAT_A1R5G5B5_UNORM:
{
- ushort *d = (ushort *) dest;
- *d = ((a & 0x80) << 8) | ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | (b >> 3);
+ uc->us = ((a & 0x80) << 8) | ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | (b >> 3);
}
return;
case PIPE_FORMAT_A4R4G4B4_UNORM:
{
- ushort *d = (ushort *) dest;
- *d = ((a & 0xf0) << 8) | ((r & 0xf0) << 4) | ((g & 0xf0) << 0) | (b >> 4);
+ uc->ub = ((a & 0xf0) << 8) | ((r & 0xf0) << 4) | ((g & 0xf0) << 0) | (b >> 4);
}
return;
case PIPE_FORMAT_A8_UNORM:
{
- ubyte *d = (ubyte *) dest;
- *d = a;
+ uc->ub = a;
}
return;
case PIPE_FORMAT_L8_UNORM:
case PIPE_FORMAT_I8_UNORM:
{
- ubyte *d = (ubyte *) dest;
- *d = r;
+ uc->ub = r;
}
return;
case PIPE_FORMAT_R32G32B32A32_FLOAT:
{
- float *d = (float *) dest;
- d[0] = rgba[0];
- d[1] = rgba[1];
- d[2] = rgba[2];
- d[3] = rgba[3];
+ uc->f[0] = rgba[0];
+ uc->f[1] = rgba[1];
+ uc->f[2] = rgba[2];
+ uc->f[3] = rgba[3];
}
return;
case PIPE_FORMAT_R32G32B32_FLOAT:
{
- float *d = (float *) dest;
- d[0] = rgba[0];
- d[1] = rgba[1];
- d[2] = rgba[2];
+ uc->f[0] = rgba[0];
+ uc->f[1] = rgba[1];
+ uc->f[2] = rgba[2];
}
return;
- /* XXX lots more cases to add */
+
+ /* Handle other cases with a generic function.
+ */
default:
- debug_print_format("gallium: unhandled format in util_pack_color()", format);
- assert(0);
+ util_format_write_4f(format, rgba, 0, uc, 0, 0, 0, 1, 1);
}
}
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