Mesa (master): util: Remove the hand written SRGB format support code.
Jose Fonseca
jrfonseca at kemper.freedesktop.org
Tue Apr 6 15:01:26 UTC 2010
Module: Mesa
Branch: master
Commit: 05b494c10181cff6a37557f530cfaf5b8d6c8e3d
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=05b494c10181cff6a37557f530cfaf5b8d6c8e3d
Author: José Fonseca <jfonseca at vmware.com>
Date: Sun Apr 4 20:14:55 2010 +0100
util: Remove the hand written SRGB format support code.
---
src/gallium/auxiliary/util/u_tile.c | 197 -----------------------------------
1 files changed, 0 insertions(+), 197 deletions(-)
diff --git a/src/gallium/auxiliary/util/u_tile.c b/src/gallium/auxiliary/util/u_tile.c
index 43b45eb..33cdbe4 100644
--- a/src/gallium/auxiliary/util/u_tile.c
+++ b/src/gallium/auxiliary/util/u_tile.c
@@ -137,185 +137,6 @@ z16_get_tile_rgba(const ushort *src,
-/*** PIPE_FORMAT_A8B8G8R8_SRGB ***/
-
-/**
- * Convert an 8-bit sRGB value from non-linear space to a
- * linear RGB value in [0, 1].
- * Implemented with a 256-entry lookup table.
- */
-static INLINE float
-srgb_to_linear(ubyte cs8)
-{
- static float table[256];
- static boolean tableReady = FALSE;
- if (!tableReady) {
- /* compute lookup table now */
- uint i;
- for (i = 0; i < 256; i++) {
- const float cs = ubyte_to_float(i);
- if (cs <= 0.04045) {
- table[i] = cs / 12.92f;
- }
- else {
- table[i] = (float) powf((cs + 0.055) / 1.055, 2.4);
- }
- }
- tableReady = TRUE;
- }
- return table[cs8];
-}
-
-
-/**
- * Convert linear float in [0,1] to an srgb ubyte value in [0,255].
- * XXX this hasn't been tested (render to srgb surface).
- * XXX this needs optimization.
- */
-static INLINE ubyte
-linear_to_srgb(float cl)
-{
- if (cl >= 1.0F)
- return 255;
- else if (cl >= 0.0031308F)
- return float_to_ubyte(1.055F * powf(cl, 0.41666F) - 0.055F);
- else if (cl > 0.0F)
- return float_to_ubyte(12.92F * cl);
- else
- return 0.0;
-}
-
-
-static void
-a8r8g8b8_srgb_get_tile_rgba(const unsigned *src,
- unsigned w, unsigned h,
- float *p,
- unsigned dst_stride)
-{
- unsigned i, j;
-
- for (i = 0; i < h; i++) {
- float *pRow = p;
- for (j = 0; j < w; j++, pRow += 4) {
- const unsigned pixel = *src++;
- pRow[0] = srgb_to_linear((pixel >> 16) & 0xff);
- pRow[1] = srgb_to_linear((pixel >> 8) & 0xff);
- pRow[2] = srgb_to_linear((pixel >> 0) & 0xff);
- pRow[3] = ubyte_to_float((pixel >> 24) & 0xff);
- }
- p += dst_stride;
- }
-}
-
-static void
-a8r8g8b8_srgb_put_tile_rgba(unsigned *dst,
- unsigned w, unsigned h,
- const float *p,
- unsigned src_stride)
-{
- unsigned i, j;
-
- for (i = 0; i < h; i++) {
- const float *pRow = p;
- for (j = 0; j < w; j++, pRow += 4) {
- unsigned r, g, b, a;
- r = linear_to_srgb(pRow[0]);
- g = linear_to_srgb(pRow[1]);
- b = linear_to_srgb(pRow[2]);
- a = float_to_ubyte(pRow[3]);
- *dst++ = (a << 24) | (r << 16) | (g << 8) | b;
- }
- p += src_stride;
- }
-}
-
-
-/*** PIPE_FORMAT_L8A8_SRGB ***/
-
-static void
-a8l8_srgb_get_tile_rgba(const ushort *src,
- unsigned w, unsigned h,
- float *p,
- unsigned dst_stride)
-{
- unsigned i, j;
-
- for (i = 0; i < h; i++) {
- float *pRow = p;
- for (j = 0; j < w; j++, pRow += 4) {
- ushort p = *src++;
- pRow[0] =
- pRow[1] =
- pRow[2] = srgb_to_linear(p & 0xff);
- pRow[3] = ubyte_to_float(p >> 8);
- }
- p += dst_stride;
- }
-}
-
-static void
-a8l8_srgb_put_tile_rgba(ushort *dst,
- unsigned w, unsigned h,
- const float *p,
- unsigned src_stride)
-{
- unsigned i, j;
-
- for (i = 0; i < h; i++) {
- const float *pRow = p;
- for (j = 0; j < w; j++, pRow += 4) {
- unsigned r, a;
- r = linear_to_srgb(pRow[0]);
- a = float_to_ubyte(pRow[3]);
- *dst++ = (a << 8) | r;
- }
- p += src_stride;
- }
-}
-
-
-/*** PIPE_FORMAT_L8_SRGB ***/
-
-static void
-l8_srgb_get_tile_rgba(const ubyte *src,
- unsigned w, unsigned h,
- float *p,
- unsigned dst_stride)
-{
- unsigned i, j;
-
- for (i = 0; i < h; i++) {
- float *pRow = p;
- for (j = 0; j < w; j++, src++, pRow += 4) {
- pRow[0] =
- pRow[1] =
- pRow[2] = srgb_to_linear(*src);
- pRow[3] = 1.0;
- }
- p += dst_stride;
- }
-}
-
-static void
-l8_srgb_put_tile_rgba(ubyte *dst,
- unsigned w, unsigned h,
- const float *p,
- unsigned src_stride)
-{
- unsigned i, j;
-
- for (i = 0; i < h; i++) {
- const float *pRow = p;
- for (j = 0; j < w; j++, pRow += 4) {
- unsigned r;
- r = linear_to_srgb(pRow[0]);
- *dst++ = (ubyte) r;
- }
- p += src_stride;
- }
-}
-
-
/*** PIPE_FORMAT_Z32_UNORM ***/
/**
@@ -518,15 +339,6 @@ pipe_tile_raw_to_rgba(enum pipe_format format,
float *dst, unsigned dst_stride)
{
switch (format) {
- case PIPE_FORMAT_B8G8R8A8_SRGB:
- a8r8g8b8_srgb_get_tile_rgba((unsigned *) src, w, h, dst, dst_stride);
- break;
- case PIPE_FORMAT_L8A8_SRGB:
- a8l8_srgb_get_tile_rgba((ushort *) src, w, h, dst, dst_stride);
- break;
- case PIPE_FORMAT_L8_SRGB:
- l8_srgb_get_tile_rgba((ubyte *) src, w, h, dst, dst_stride);
- break;
case PIPE_FORMAT_Z16_UNORM:
z16_get_tile_rgba((ushort *) src, w, h, dst, dst_stride);
break;
@@ -670,15 +482,6 @@ pipe_put_tile_rgba(struct pipe_context *pipe,
return;
switch (format) {
- case PIPE_FORMAT_B8G8R8A8_SRGB:
- a8r8g8b8_srgb_put_tile_rgba((unsigned *) packed, w, h, p, src_stride);
- break;
- case PIPE_FORMAT_L8A8_SRGB:
- a8l8_srgb_put_tile_rgba((ushort *) packed, w, h, p, src_stride);
- break;
- case PIPE_FORMAT_L8_SRGB:
- l8_srgb_put_tile_rgba((ubyte *) packed, w, h, p, src_stride);
- break;
case PIPE_FORMAT_Z16_UNORM:
/*z16_put_tile_rgba((ushort *) packed, w, h, p, src_stride);*/
break;
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