summaryrefslogtreecommitdiff
path: root/src/mesa/main/texformat_tmp.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/mesa/main/texformat_tmp.h')
-rw-r--r--src/mesa/main/texformat_tmp.h555
1 files changed, 293 insertions, 262 deletions
diff --git a/src/mesa/main/texformat_tmp.h b/src/mesa/main/texformat_tmp.h
index 5f0c674d4f..eb160deff9 100644
--- a/src/mesa/main/texformat_tmp.h
+++ b/src/mesa/main/texformat_tmp.h
@@ -3,6 +3,7 @@
* Version: 6.5.1
*
* Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
+ * Copyright (c) 2008 VMware, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -71,14 +72,6 @@
/* MESA_FORMAT_RGBA **********************************************************/
-/* Fetch texel from 1D, 2D or 3D RGBA texture, returning 4 GLchans */
-static void FETCH(rgba)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
-{
- const GLchan *src = TEXEL_ADDR(GLchan, texImage, i, j, k, 4);
- COPY_CHAN4( texel, src );
-}
-
/* Fetch texel from 1D, 2D or 3D RGBA texture, returning 4 GLfloats */
static void FETCH(f_rgba)( const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLfloat *texel )
@@ -106,17 +99,6 @@ static void store_texel_rgba(struct gl_texture_image *texImage,
/* MESA_FORMAT_RGB ***********************************************************/
-/* Fetch texel from 1D, 2D or 3D RGB texture, returning 4 GLchans */
-static void FETCH(rgb)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
-{
- const GLchan *src = TEXEL_ADDR(GLchan, texImage, i, j, k, 3);
- texel[RCOMP] = src[0];
- texel[GCOMP] = src[1];
- texel[BCOMP] = src[2];
- texel[ACOMP] = CHAN_MAX;
-}
-
/* Fetch texel from 1D, 2D or 3D RGB texture, returning 4 GLfloats */
static void FETCH(f_rgb)( const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLfloat *texel )
@@ -143,14 +125,14 @@ static void store_texel_rgb(struct gl_texture_image *texImage,
/* MESA_FORMAT_ALPHA *********************************************************/
/* Fetch texel from 1D, 2D or 3D ALPHA texture, returning 4 GLchans */
-static void FETCH(alpha)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_alpha)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLchan *src = TEXEL_ADDR(GLchan, texImage, i, j, k, 1);
texel[RCOMP] =
texel[GCOMP] =
- texel[BCOMP] = 0;
- texel[ACOMP] = src[0];
+ texel[BCOMP] = 0.0F;
+ texel[ACOMP] = CHAN_TO_FLOAT(src[0]);
}
#if DIM == 3
@@ -166,14 +148,14 @@ static void store_texel_alpha(struct gl_texture_image *texImage,
/* MESA_FORMAT_LUMINANCE *****************************************************/
/* Fetch texel from 1D, 2D or 3D LUMIN texture, returning 4 GLchans */
-static void FETCH(luminance)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_luminance)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLchan *src = TEXEL_ADDR(GLchan, texImage, i, j, k, 1);
texel[RCOMP] =
texel[GCOMP] =
- texel[BCOMP] = src[0];
- texel[ACOMP] = CHAN_MAX;
+ texel[BCOMP] = CHAN_TO_FLOAT(src[0]);
+ texel[ACOMP] = 1.0F;
}
#if DIM == 3
@@ -189,14 +171,14 @@ static void store_texel_luminance(struct gl_texture_image *texImage,
/* MESA_FORMAT_LUMINANCE_ALPHA ***********************************************/
/* Fetch texel from 1D, 2D or 3D L_A texture, returning 4 GLchans */
-static void FETCH(luminance_alpha)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_luminance_alpha)(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel)
{
const GLchan *src = TEXEL_ADDR(GLchan, texImage, i, j, k, 2);
- texel[RCOMP] = src[0];
- texel[GCOMP] = src[0];
- texel[BCOMP] = src[0];
- texel[ACOMP] = src[1];
+ texel[RCOMP] =
+ texel[GCOMP] =
+ texel[BCOMP] = CHAN_TO_FLOAT(src[0]);
+ texel[ACOMP] = CHAN_TO_FLOAT(src[1]);
}
#if DIM == 3
@@ -213,14 +195,14 @@ static void store_texel_luminance_alpha(struct gl_texture_image *texImage,
/* MESA_FORMAT_INTENSITY *****************************************************/
/* Fetch texel from 1D, 2D or 3D INT. texture, returning 4 GLchans */
-static void FETCH(intensity)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_intensity)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLchan *src = TEXEL_ADDR(GLchan, texImage, i, j, k, 1);
- texel[RCOMP] = src[0];
- texel[GCOMP] = src[0];
- texel[BCOMP] = src[0];
- texel[ACOMP] = src[0];
+ texel[RCOMP] =
+ texel[GCOMP] =
+ texel[BCOMP] =
+ texel[ACOMP] = CHAN_TO_FLOAT(src[0]);
}
#if DIM == 3
@@ -605,17 +587,19 @@ static void store_texel_intensity_f16(struct gl_texture_image *texImage,
/* MESA_FORMAT_RGBA8888 ******************************************************/
-/* Fetch texel from 1D, 2D or 3D rgba8888 texture, return 4 GLchans */
-static void FETCH(rgba8888)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+/* Fetch texel from 1D, 2D or 3D rgba8888 texture, return 4 GLfloats */
+static void FETCH(f_rgba8888)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
- texel[RCOMP] = UBYTE_TO_CHAN( (s >> 24) );
- texel[GCOMP] = UBYTE_TO_CHAN( (s >> 16) & 0xff );
- texel[BCOMP] = UBYTE_TO_CHAN( (s >> 8) & 0xff );
- texel[ACOMP] = UBYTE_TO_CHAN( (s ) & 0xff );
+ texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 24) );
+ texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff );
+ texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff );
+ texel[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff );
}
+
+
#if DIM == 3
static void store_texel_rgba8888(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
@@ -630,14 +614,14 @@ static void store_texel_rgba8888(struct gl_texture_image *texImage,
/* MESA_FORMAT_RGBA888_REV ***************************************************/
/* Fetch texel from 1D, 2D or 3D abgr8888 texture, return 4 GLchans */
-static void FETCH(rgba8888_rev)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_rgba8888_rev)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
- texel[RCOMP] = UBYTE_TO_CHAN( (s ) & 0xff );
- texel[GCOMP] = UBYTE_TO_CHAN( (s >> 8) & 0xff );
- texel[BCOMP] = UBYTE_TO_CHAN( (s >> 16) & 0xff );
- texel[ACOMP] = UBYTE_TO_CHAN( (s >> 24) );
+ texel[RCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff );
+ texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff );
+ texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff );
+ texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) );
}
#if DIM == 3
@@ -654,14 +638,14 @@ static void store_texel_rgba8888_rev(struct gl_texture_image *texImage,
/* MESA_FORMAT_ARGB8888 ******************************************************/
/* Fetch texel from 1D, 2D or 3D argb8888 texture, return 4 GLchans */
-static void FETCH(argb8888)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_argb8888)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
- texel[RCOMP] = UBYTE_TO_CHAN( (s >> 16) & 0xff );
- texel[GCOMP] = UBYTE_TO_CHAN( (s >> 8) & 0xff );
- texel[BCOMP] = UBYTE_TO_CHAN( (s ) & 0xff );
- texel[ACOMP] = UBYTE_TO_CHAN( (s >> 24) );
+ texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff );
+ texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff );
+ texel[BCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff );
+ texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) );
}
#if DIM == 3
@@ -677,15 +661,15 @@ static void store_texel_argb8888(struct gl_texture_image *texImage,
/* MESA_FORMAT_ARGB8888_REV **************************************************/
-/* Fetch texel from 1D, 2D or 3D argb8888_rev texture, return 4 GLchans */
-static void FETCH(argb8888_rev)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+/* Fetch texel from 1D, 2D or 3D argb8888_rev texture, return 4 GLfloats */
+static void FETCH(f_argb8888_rev)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
- texel[RCOMP] = UBYTE_TO_CHAN( (s >> 8) & 0xff );
- texel[GCOMP] = UBYTE_TO_CHAN( (s >> 16) & 0xff );
- texel[BCOMP] = UBYTE_TO_CHAN( (s >> 24) );
- texel[ACOMP] = UBYTE_TO_CHAN( (s ) & 0xff );
+ texel[RCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff );
+ texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff );
+ texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 24) );
+ texel[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff );
}
#if DIM == 3
@@ -702,14 +686,14 @@ static void store_texel_argb8888_rev(struct gl_texture_image *texImage,
/* MESA_FORMAT_RGB888 ********************************************************/
/* Fetch texel from 1D, 2D or 3D rgb888 texture, return 4 GLchans */
-static void FETCH(rgb888)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_rgb888)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3);
- texel[RCOMP] = UBYTE_TO_CHAN( src[2] );
- texel[GCOMP] = UBYTE_TO_CHAN( src[1] );
- texel[BCOMP] = UBYTE_TO_CHAN( src[0] );
- texel[ACOMP] = CHAN_MAX;
+ texel[RCOMP] = UBYTE_TO_FLOAT( src[2] );
+ texel[GCOMP] = UBYTE_TO_FLOAT( src[1] );
+ texel[BCOMP] = UBYTE_TO_FLOAT( src[0] );
+ texel[ACOMP] = 1.0F;
}
#if DIM == 3
@@ -718,9 +702,9 @@ static void store_texel_rgb888(struct gl_texture_image *texImage,
{
const GLubyte *rgba = (const GLubyte *) texel;
GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3);
- dst[0] = rgba[RCOMP];
+ dst[0] = rgba[BCOMP];
dst[1] = rgba[GCOMP];
- dst[2] = rgba[BCOMP];
+ dst[2] = rgba[RCOMP];
}
#endif
@@ -728,14 +712,14 @@ static void store_texel_rgb888(struct gl_texture_image *texImage,
/* MESA_FORMAT_BGR888 ********************************************************/
/* Fetch texel from 1D, 2D or 3D bgr888 texture, return 4 GLchans */
-static void FETCH(bgr888)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_bgr888)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3);
- texel[RCOMP] = UBYTE_TO_CHAN( src[0] );
- texel[GCOMP] = UBYTE_TO_CHAN( src[1] );
- texel[BCOMP] = UBYTE_TO_CHAN( src[2] );
- texel[ACOMP] = CHAN_MAX;
+ texel[RCOMP] = UBYTE_TO_FLOAT( src[0] );
+ texel[GCOMP] = UBYTE_TO_FLOAT( src[1] );
+ texel[BCOMP] = UBYTE_TO_FLOAT( src[2] );
+ texel[ACOMP] = 1.0F;
}
#if DIM == 3
@@ -744,9 +728,9 @@ static void store_texel_bgr888(struct gl_texture_image *texImage,
{
const GLubyte *rgba = (const GLubyte *) texel;
GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3);
- dst[0] = rgba[BCOMP];
+ dst[0] = rgba[RCOMP];
dst[1] = rgba[GCOMP];
- dst[2] = rgba[RCOMP];
+ dst[2] = rgba[BCOMP];
}
#endif
@@ -757,15 +741,15 @@ static void store_texel_bgr888(struct gl_texture_image *texImage,
/* MESA_FORMAT_RGB565 ********************************************************/
/* Fetch texel from 1D, 2D or 3D rgb565 texture, return 4 GLchans */
-static void FETCH(rgb565)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_rgb565)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
const GLushort s = *src;
- texel[RCOMP] = UBYTE_TO_CHAN( ((s >> 8) & 0xf8) | ((s >> 13) & 0x7) );
- texel[GCOMP] = UBYTE_TO_CHAN( ((s >> 3) & 0xfc) | ((s >> 9) & 0x3) );
- texel[BCOMP] = UBYTE_TO_CHAN( ((s << 3) & 0xf8) | ((s >> 2) & 0x7) );
- texel[ACOMP] = CHAN_MAX;
+ texel[RCOMP] = ((s >> 11) & 0x1f) * (1.0F / 31.0F);
+ texel[GCOMP] = ((s >> 5 ) & 0x3f) * (1.0F / 63.0F);
+ texel[BCOMP] = ((s ) & 0x1f) * (1.0F / 31.0F);
+ texel[ACOMP] = 1.0F;
}
#if DIM == 3
@@ -782,15 +766,15 @@ static void store_texel_rgb565(struct gl_texture_image *texImage,
/* MESA_FORMAT_RGB565_REV ****************************************************/
/* Fetch texel from 1D, 2D or 3D rgb565_rev texture, return 4 GLchans */
-static void FETCH(rgb565_rev)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_rgb565_rev)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
const GLushort s = (*src >> 8) | (*src << 8); /* byte swap */
- texel[RCOMP] = UBYTE_TO_CHAN( ((s >> 8) & 0xf8) | ((s >> 13) & 0x7) );
- texel[GCOMP] = UBYTE_TO_CHAN( ((s >> 3) & 0xfc) | ((s >> 9) & 0x3) );
- texel[BCOMP] = UBYTE_TO_CHAN( ((s << 3) & 0xf8) | ((s >> 2) & 0x7) );
- texel[ACOMP] = CHAN_MAX;
+ texel[RCOMP] = UBYTE_TO_FLOAT( ((s >> 8) & 0xf8) | ((s >> 13) & 0x7) );
+ texel[GCOMP] = UBYTE_TO_FLOAT( ((s >> 3) & 0xfc) | ((s >> 9) & 0x3) );
+ texel[BCOMP] = UBYTE_TO_FLOAT( ((s << 3) & 0xf8) | ((s >> 2) & 0x7) );
+ texel[ACOMP] = 1.0F;
}
#if DIM == 3
@@ -806,15 +790,15 @@ static void store_texel_rgb565_rev(struct gl_texture_image *texImage,
/* MESA_FORMAT_RGBA4444 ******************************************************/
/* Fetch texel from 1D, 2D or 3D argb444 texture, return 4 GLchans */
-static void FETCH(rgba4444)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_rgba4444)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
const GLushort s = *src;
- texel[RCOMP] = UBYTE_TO_CHAN( ((s >> 12) & 0xf) | ((s >> 8) & 0xf0) );
- texel[GCOMP] = UBYTE_TO_CHAN( ((s >> 8) & 0xf) | ((s >> 4) & 0xf0) );
- texel[BCOMP] = UBYTE_TO_CHAN( ((s >> 4) & 0xf) | ((s ) & 0xf0) );
- texel[ACOMP] = UBYTE_TO_CHAN( ((s ) & 0xf) | ((s << 4) & 0xf0) );
+ texel[RCOMP] = ((s >> 12) & 0xf) * (1.0F / 15.0F);
+ texel[GCOMP] = ((s >> 8) & 0xf) * (1.0F / 15.0F);
+ texel[BCOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F);
+ texel[ACOMP] = ((s ) & 0xf) * (1.0F / 15.0F);
}
#if DIM == 3
@@ -831,15 +815,15 @@ static void store_texel_rgba4444(struct gl_texture_image *texImage,
/* MESA_FORMAT_ARGB4444 ******************************************************/
/* Fetch texel from 1D, 2D or 3D argb444 texture, return 4 GLchans */
-static void FETCH(argb4444)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_argb4444)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
const GLushort s = *src;
- texel[RCOMP] = UBYTE_TO_CHAN( ((s >> 8) & 0xf) | ((s >> 4) & 0xf0) );
- texel[GCOMP] = UBYTE_TO_CHAN( ((s >> 4) & 0xf) | ((s ) & 0xf0) );
- texel[BCOMP] = UBYTE_TO_CHAN( ((s ) & 0xf) | ((s << 4) & 0xf0) );
- texel[ACOMP] = UBYTE_TO_CHAN( ((s >> 12) & 0xf) | ((s >> 8) & 0xf0) );
+ texel[RCOMP] = ((s >> 8) & 0xf) * (1.0F / 15.0F);
+ texel[GCOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F);
+ texel[BCOMP] = ((s ) & 0xf) * (1.0F / 15.0F);
+ texel[ACOMP] = ((s >> 12) & 0xf) * (1.0F / 15.0F);
}
#if DIM == 3
@@ -856,14 +840,14 @@ static void store_texel_argb4444(struct gl_texture_image *texImage,
/* MESA_FORMAT_ARGB4444_REV **************************************************/
/* Fetch texel from 1D, 2D or 3D argb4444_rev texture, return 4 GLchans */
-static void FETCH(argb4444_rev)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_argb4444_rev)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
- texel[RCOMP] = UBYTE_TO_CHAN( ((s ) & 0xf) | ((s << 4) & 0xf0) );
- texel[GCOMP] = UBYTE_TO_CHAN( ((s >> 12) & 0xf) | ((s >> 8) & 0xf0) );
- texel[BCOMP] = UBYTE_TO_CHAN( ((s >> 8) & 0xf) | ((s >> 4) & 0xf0) );
- texel[ACOMP] = UBYTE_TO_CHAN( ((s >> 4) & 0xf) | ((s ) & 0xf0) );
+ texel[RCOMP] = ((s ) & 0xf) * (1.0F / 15.0F);
+ texel[GCOMP] = ((s >> 12) & 0xf) * (1.0F / 15.0F);
+ texel[BCOMP] = ((s >> 8) & 0xf) * (1.0F / 15.0F);
+ texel[ACOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F);
}
#if DIM == 3
@@ -879,15 +863,15 @@ static void store_texel_argb4444_rev(struct gl_texture_image *texImage,
/* MESA_FORMAT_RGBA5551 ******************************************************/
/* Fetch texel from 1D, 2D or 3D argb1555 texture, return 4 GLchans */
-static void FETCH(rgba5551)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_rgba5551)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
const GLushort s = *src;
- texel[RCOMP] = UBYTE_TO_CHAN( ((s >> 8) & 0xf8) | ((s >> 13) & 0x7) );
- texel[GCOMP] = UBYTE_TO_CHAN( ((s >> 3) & 0xf8) | ((s >> 8) & 0x7) );
- texel[BCOMP] = UBYTE_TO_CHAN( ((s << 2) & 0xf8) | ((s >> 3) & 0x7) );
- texel[ACOMP] = UBYTE_TO_CHAN( ((s) & 0x01) ? 255 : 0);
+ texel[RCOMP] = ((s >> 11) & 0x1f) * (1.0F / 31.0F);
+ texel[GCOMP] = ((s >> 6) & 0x1f) * (1.0F / 31.0F);
+ texel[BCOMP] = ((s >> 1) & 0x1f) * (1.0F / 31.0F);
+ texel[ACOMP] = ((s ) & 0x01) * 1.0F;
}
#if DIM == 3
@@ -903,15 +887,15 @@ static void store_texel_rgba5551(struct gl_texture_image *texImage,
/* MESA_FORMAT_ARGB1555 ******************************************************/
/* Fetch texel from 1D, 2D or 3D argb1555 texture, return 4 GLchans */
-static void FETCH(argb1555)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_argb1555)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
const GLushort s = *src;
- texel[RCOMP] = UBYTE_TO_CHAN( ((s >> 7) & 0xf8) | ((s >> 12) & 0x7) );
- texel[GCOMP] = UBYTE_TO_CHAN( ((s >> 2) & 0xf8) | ((s >> 7) & 0x7) );
- texel[BCOMP] = UBYTE_TO_CHAN( ((s << 3) & 0xf8) | ((s >> 2) & 0x7) );
- texel[ACOMP] = UBYTE_TO_CHAN( ((s >> 15) & 0x01) * 255 );
+ texel[RCOMP] = ((s >> 10) & 0x1f) * (1.0F / 31.0F);
+ texel[GCOMP] = ((s >> 5) & 0x1f) * (1.0F / 31.0F);
+ texel[BCOMP] = ((s >> 0) & 0x1f) * (1.0F / 31.0F);
+ texel[ACOMP] = ((s >> 15) & 0x01) * 1.0F;
}
#if DIM == 3
@@ -928,15 +912,15 @@ static void store_texel_argb1555(struct gl_texture_image *texImage,
/* MESA_FORMAT_ARGB1555_REV **************************************************/
/* Fetch texel from 1D, 2D or 3D argb1555_rev texture, return 4 GLchans */
-static void FETCH(argb1555_rev)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_argb1555_rev)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
const GLushort s = (*src << 8) | (*src >> 8); /* byteswap */
- texel[RCOMP] = UBYTE_TO_CHAN( ((s >> 7) & 0xf8) | ((s >> 12) & 0x7) );
- texel[GCOMP] = UBYTE_TO_CHAN( ((s >> 2) & 0xf8) | ((s >> 7) & 0x7) );
- texel[BCOMP] = UBYTE_TO_CHAN( ((s << 3) & 0xf8) | ((s >> 2) & 0x7) );
- texel[ACOMP] = UBYTE_TO_CHAN( ((s >> 15) & 0x01) * 255 );
+ texel[RCOMP] = UBYTE_TO_FLOAT( ((s >> 7) & 0xf8) | ((s >> 12) & 0x7) );
+ texel[GCOMP] = UBYTE_TO_FLOAT( ((s >> 2) & 0xf8) | ((s >> 7) & 0x7) );
+ texel[BCOMP] = UBYTE_TO_FLOAT( ((s << 3) & 0xf8) | ((s >> 2) & 0x7) );
+ texel[ACOMP] = UBYTE_TO_FLOAT( ((s >> 15) & 0x01) * 255 );
}
#if DIM == 3
@@ -953,14 +937,14 @@ static void store_texel_argb1555_rev(struct gl_texture_image *texImage,
/* MESA_FORMAT_AL88 **********************************************************/
/* Fetch texel from 1D, 2D or 3D al88 texture, return 4 GLchans */
-static void FETCH(al88)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_al88)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
texel[RCOMP] =
texel[GCOMP] =
- texel[BCOMP] = UBYTE_TO_CHAN( s & 0xff );
- texel[ACOMP] = UBYTE_TO_CHAN( s >> 8 );
+ texel[BCOMP] = UBYTE_TO_FLOAT( s & 0xff );
+ texel[ACOMP] = UBYTE_TO_FLOAT( s >> 8 );
}
#if DIM == 3
@@ -977,14 +961,14 @@ static void store_texel_al88(struct gl_texture_image *texImage,
/* MESA_FORMAT_AL88_REV ******************************************************/
/* Fetch texel from 1D, 2D or 3D al88_rev texture, return 4 GLchans */
-static void FETCH(al88_rev)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_al88_rev)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
texel[RCOMP] =
texel[GCOMP] =
- texel[BCOMP] = UBYTE_TO_CHAN( s >> 8 );
- texel[ACOMP] = UBYTE_TO_CHAN( s & 0xff );
+ texel[BCOMP] = UBYTE_TO_FLOAT( s >> 8 );
+ texel[ACOMP] = UBYTE_TO_FLOAT( s & 0xff );
}
#if DIM == 3
@@ -1001,17 +985,15 @@ static void store_texel_al88_rev(struct gl_texture_image *texImage,
/* MESA_FORMAT_RGB332 ********************************************************/
/* Fetch texel from 1D, 2D or 3D rgb332 texture, return 4 GLchans */
-static void FETCH(rgb332)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_rgb332)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
- static const GLubyte lut2to8[4] = {0, 85, 170, 255};
- static const GLubyte lut3to8[8] = {0, 36, 73, 109, 146, 182, 219, 255};
const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
const GLubyte s = *src;
- texel[RCOMP] = UBYTE_TO_CHAN( lut3to8[(s >> 5) & 0x7] );
- texel[GCOMP] = UBYTE_TO_CHAN( lut3to8[(s >> 2) & 0x7] );
- texel[BCOMP] = UBYTE_TO_CHAN( lut2to8[(s ) & 0x3] );
- texel[ACOMP] = CHAN_MAX;
+ texel[RCOMP] = ((s >> 5) & 0x7) * (1.0F / 7.0F);
+ texel[GCOMP] = ((s >> 2) & 0x7) * (1.0F / 7.0F);
+ texel[BCOMP] = ((s ) & 0x3) * (1.0F / 3.0F);
+ texel[ACOMP] = 1.0F;
}
#if DIM == 3
@@ -1028,14 +1010,14 @@ static void store_texel_rgb332(struct gl_texture_image *texImage,
/* MESA_FORMAT_A8 ************************************************************/
/* Fetch texel from 1D, 2D or 3D a8 texture, return 4 GLchans */
-static void FETCH(a8)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_a8)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
texel[RCOMP] =
texel[GCOMP] =
- texel[BCOMP] = 0;
- texel[ACOMP] = UBYTE_TO_CHAN( src[0] );
+ texel[BCOMP] = 0.0F;
+ texel[ACOMP] = UBYTE_TO_FLOAT( src[0] );
}
#if DIM == 3
@@ -1052,14 +1034,14 @@ static void store_texel_a8(struct gl_texture_image *texImage,
/* MESA_FORMAT_L8 ************************************************************/
/* Fetch texel from 1D, 2D or 3D l8 texture, return 4 GLchans */
-static void FETCH(l8)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_l8)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
texel[RCOMP] =
texel[GCOMP] =
- texel[BCOMP] = UBYTE_TO_CHAN( src[0] );
- texel[ACOMP] = CHAN_MAX;
+ texel[BCOMP] = UBYTE_TO_FLOAT( src[0] );
+ texel[ACOMP] = 1.0F;
}
#if DIM == 3
@@ -1076,14 +1058,14 @@ static void store_texel_l8(struct gl_texture_image *texImage,
/* MESA_FORMAT_I8 ************************************************************/
/* Fetch texel from 1D, 2D or 3D i8 texture, return 4 GLchans */
-static void FETCH(i8)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_i8)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
texel[RCOMP] =
texel[GCOMP] =
texel[BCOMP] =
- texel[ACOMP] = UBYTE_TO_CHAN( src[0] );
+ texel[ACOMP] = UBYTE_TO_FLOAT( src[0] );
}
#if DIM == 3
@@ -1102,12 +1084,11 @@ static void store_texel_i8(struct gl_texture_image *texImage,
/* Fetch CI texel from 1D, 2D or 3D ci8 texture, lookup the index in a
* color table, and return 4 GLchans.
*/
-static void FETCH(ci8)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+static void FETCH(f_ci8)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1);
const struct gl_color_table *palette;
- GLubyte texelUB[4];
GLuint index;
GET_CURRENT_CONTEXT(ctx);
@@ -1124,61 +1105,48 @@ static void FETCH(ci8)( const struct gl_texture_image *texImage,
index = (*src) & (palette->Size - 1);
{
- const GLubyte *table = palette->TableUB;
+ const GLfloat *table = palette->TableF;
switch (palette->_BaseFormat) {
case GL_ALPHA:
- texelUB[RCOMP] =
- texelUB[GCOMP] =
- texelUB[BCOMP] = 0;
- texelUB[ACOMP] = table[index];
- break;;
+ texel[RCOMP] =
+ texel[GCOMP] =
+ texel[BCOMP] = 0.0F;
+ texel[ACOMP] = table[index];
+ break;
case GL_LUMINANCE:
- texelUB[RCOMP] =
- texelUB[GCOMP] =
- texelUB[BCOMP] = table[index];
- texelUB[ACOMP] = 255;
+ texel[RCOMP] =
+ texel[GCOMP] =
+ texel[BCOMP] = table[index];
+ texel[ACOMP] = 1.0F;
break;
case GL_INTENSITY:
- texelUB[RCOMP] =
- texelUB[GCOMP] =
- texelUB[BCOMP] =
- texelUB[ACOMP] = table[index];
- break;;
+ texel[RCOMP] =
+ texel[GCOMP] =
+ texel[BCOMP] =
+ texel[ACOMP] = table[index];
+ break;
case GL_LUMINANCE_ALPHA:
- texelUB[RCOMP] =
- texelUB[GCOMP] =
- texelUB[BCOMP] = table[index * 2 + 0];
- texelUB[ACOMP] = table[index * 2 + 1];
- break;;
+ texel[RCOMP] =
+ texel[GCOMP] =
+ texel[BCOMP] = table[index * 2 + 0];
+ texel[ACOMP] = table[index * 2 + 1];
+ break;
case GL_RGB:
- texelUB[RCOMP] = table[index * 3 + 0];
- texelUB[GCOMP] = table[index * 3 + 1];
- texelUB[BCOMP] = table[index * 3 + 2];
- texelUB[ACOMP] = 255;
- break;;
+ texel[RCOMP] = table[index * 3 + 0];
+ texel[GCOMP] = table[index * 3 + 1];
+ texel[BCOMP] = table[index * 3 + 2];
+ texel[ACOMP] = 1.0F;
+ break;
case GL_RGBA:
- texelUB[RCOMP] = table[index * 4 + 0];
- texelUB[GCOMP] = table[index * 4 + 1];
- texelUB[BCOMP] = table[index * 4 + 2];
- texelUB[ACOMP] = table[index * 4 + 3];
- break;;
+ texel[RCOMP] = table[index * 4 + 0];
+ texel[GCOMP] = table[index * 4 + 1];
+ texel[BCOMP] = table[index * 4 + 2];
+ texel[ACOMP] = table[index * 4 + 3];
+ break;
default:
_mesa_problem(ctx, "Bad palette format in fetch_texel_ci8");
return;
}
-#if CHAN_TYPE == GL_UNSIGNED_BYTE
- COPY_4UBV(texel, texelUB);
-#elif CHAN_TYPE == GL_UNSIGNED_SHORT
- texel[0] = UBYTE_TO_USHORT(texelUB[0]);
- texel[1] = UBYTE_TO_USHORT(texelUB[1]);
- texel[2] = UBYTE_TO_USHORT(texelUB[2]);
- texel[3] = UBYTE_TO_USHORT(texelUB[3]);
-#else
- texel[0] = UBYTE_TO_FLOAT(texelUB[0]);
- texel[1] = UBYTE_TO_FLOAT(texelUB[1]);
- texel[2] = UBYTE_TO_FLOAT(texelUB[2]);
- texel[3] = UBYTE_TO_FLOAT(texelUB[3]);
-#endif
}
}
@@ -1196,14 +1164,15 @@ static void store_texel_ci8(struct gl_texture_image *texImage,
#if FEATURE_EXT_texture_sRGB
/* Fetch texel from 1D, 2D or 3D srgb8 texture, return 4 GLfloats */
+/* Note: component order is same as for MESA_FORMAT_RGB888 */
static void FETCH(srgb8)(const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3);
- texel[RCOMP] = nonlinear_to_linear(src[0]);
+ texel[RCOMP] = nonlinear_to_linear(src[2]);
texel[GCOMP] = nonlinear_to_linear(src[1]);
- texel[BCOMP] = nonlinear_to_linear(src[2]);
- texel[ACOMP] = CHAN_MAX;
+ texel[BCOMP] = nonlinear_to_linear(src[0]);
+ texel[ACOMP] = 1.0F;
}
#if DIM == 3
@@ -1212,9 +1181,9 @@ static void store_texel_srgb8(struct gl_texture_image *texImage,
{
const GLubyte *rgba = (const GLubyte *) texel;
GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 3);
- dst[0] = rgba[RCOMP]; /* no conversion */
+ dst[0] = rgba[BCOMP]; /* no conversion */
dst[1] = rgba[GCOMP];
- dst[2] = rgba[BCOMP];
+ dst[2] = rgba[RCOMP];
}
#endif
@@ -1222,11 +1191,11 @@ static void store_texel_srgb8(struct gl_texture_image *texImage,
static void FETCH(srgba8)(const struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, GLfloat *texel )
{
- const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 4);
- texel[RCOMP] = nonlinear_to_linear(src[0]);
- texel[GCOMP] = nonlinear_to_linear(src[1]);
- texel[BCOMP] = nonlinear_to_linear(src[2]);
- texel[ACOMP] = UBYTE_TO_FLOAT(src[3]); /* linear! */
+ const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
+ texel[RCOMP] = nonlinear_to_linear( (s >> 24) );
+ texel[GCOMP] = nonlinear_to_linear( (s >> 16) & 0xff );
+ texel[BCOMP] = nonlinear_to_linear( (s >> 8) & 0xff );
+ texel[ACOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); /* linear! */
}
#if DIM == 3
@@ -1234,10 +1203,29 @@ static void store_texel_srgba8(struct gl_texture_image *texImage,
GLint i, GLint j, GLint k, const void *texel)
{
const GLubyte *rgba = (const GLubyte *) texel;
- GLubyte *dst = TEXEL_ADDR(GLubyte, texImage, i, j, k, 4);
- dst[0] = rgba[RCOMP];
- dst[1] = rgba[GCOMP];
- dst[2] = rgba[BCOMP];
+ GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
+ *dst = PACK_COLOR_8888(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]);
+}
+#endif
+
+/* Fetch texel from 1D, 2D or 3D sargb8 texture, return 4 GLfloats */
+static void FETCH(sargb8)(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
+{
+ const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
+ texel[RCOMP] = nonlinear_to_linear( (s >> 16) & 0xff );
+ texel[GCOMP] = nonlinear_to_linear( (s >> 8) & 0xff );
+ texel[BCOMP] = nonlinear_to_linear( (s ) & 0xff );
+ texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) ); /* linear! */
+}
+
+#if DIM == 3
+static void store_texel_sargb8(struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, const void *texel)
+{
+ const GLubyte *rgba = (const GLubyte *) texel;
+ GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
+ *dst = PACK_COLOR_8888(rgba[ACOMP], rgba[RCOMP], rgba[GCOMP], rgba[BCOMP]);
}
#endif
@@ -1249,7 +1237,7 @@ static void FETCH(sl8)(const struct gl_texture_image *texImage,
texel[RCOMP] =
texel[GCOMP] =
texel[BCOMP] = nonlinear_to_linear(src[0]);
- texel[ACOMP] = CHAN_MAX;
+ texel[ACOMP] = 1.0F;
}
#if DIM == 3
@@ -1284,19 +1272,74 @@ static void store_texel_sla8(struct gl_texture_image *texImage,
}
#endif
+#endif /* FEATURE_EXT_texture_sRGB */
-#endif /* FEATURE_EXT_texture_sRGB */
+/* MESA_FORMAT_DUDV8 ********************************************************/
+
+/* this format by definition produces 0,0,0,1 as rgba values,
+ however we'll return the dudv values as rg and fix up elsewhere */
+static void FETCH(dudv8)(const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
+{
+ const GLbyte *src = TEXEL_ADDR(GLbyte, texImage, i, j, k, 2);
+ texel[RCOMP] = BYTE_TO_FLOAT(src[0]);
+ texel[GCOMP] = BYTE_TO_FLOAT(src[1]);
+ texel[BCOMP] = 0;
+ texel[ACOMP] = 0;
+}
+
+/* MESA_FORMAT_SIGNED_RGBA8888 ***********************************************/
+
+static void FETCH(signed_rgba8888)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
+{
+ const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
+ texel[RCOMP] = BYTE_TO_FLOAT_TEX( (s >> 24) );
+ texel[GCOMP] = BYTE_TO_FLOAT_TEX( (s >> 16) & 0xff );
+ texel[BCOMP] = BYTE_TO_FLOAT_TEX( (s >> 8) & 0xff );
+ texel[ACOMP] = BYTE_TO_FLOAT_TEX( (s ) & 0xff );
+}
+
+#if DIM == 3
+static void store_texel_signed_rgba8888(struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, const void *texel)
+{
+ const GLbyte *rgba = (const GLbyte *) texel;
+ GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
+ *dst = PACK_COLOR_8888(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]);
+}
+#endif
+
+static void FETCH(signed_rgba8888_rev)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
+{
+ const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
+ texel[RCOMP] = BYTE_TO_FLOAT_TEX( (s ) & 0xff );
+ texel[GCOMP] = BYTE_TO_FLOAT_TEX( (s >> 8) & 0xff );
+ texel[BCOMP] = BYTE_TO_FLOAT_TEX( (s >> 16) & 0xff );
+ texel[ACOMP] = BYTE_TO_FLOAT_TEX( (s >> 24) );
+}
+
+#if DIM == 3
+static void store_texel_signed_rgba8888_rev(struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, const void *texel)
+{
+ const GLubyte *rgba = (const GLubyte *) texel;
+ GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
+ *dst = PACK_COLOR_8888_REV(rgba[RCOMP], rgba[GCOMP], rgba[BCOMP], rgba[ACOMP]);
+}
+#endif
/* MESA_FORMAT_YCBCR *********************************************************/
-/* Fetch texel from 1D, 2D or 3D ycbcr texture, return 4 GLchans */
-/* We convert YCbCr to RGB here */
-/* XXX this may break if GLchan != GLubyte */
-static void FETCH(ycbcr)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+/* Fetch texel from 1D, 2D or 3D ycbcr texture, return 4 GLfloats.
+ * We convert YCbCr to RGB here.
+ */
+static void FETCH(f_ycbcr)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLushort *src0 = TEXEL_ADDR(GLushort, texImage, (i & ~1), j, k, 1); /* even */
const GLushort *src1 = src0 + 1; /* odd */
@@ -1304,23 +1347,17 @@ static void FETCH(ycbcr)( const struct gl_texture_image *texImage,
const GLubyte cb = *src0 & 0xff; /* chroma U */
const GLubyte y1 = (*src1 >> 8) & 0xff; /* luminance */
const GLubyte cr = *src1 & 0xff; /* chroma V */
- GLint r, g, b;
- if (i & 1) {
- /* odd pixel: use y1,cr,cb */
- r = (GLint) (1.164 * (y1-16) + 1.596 * (cr-128));
- g = (GLint) (1.164 * (y1-16) - 0.813 * (cr-128) - 0.391 * (cb-128));
- b = (GLint) (1.164 * (y1-16) + 2.018 * (cb-128));
- }
- else {
- /* even pixel: use y0,cr,cb */
- r = (GLint) (1.164 * (y0-16) + 1.596 * (cr-128));
- g = (GLint) (1.164 * (y0-16) - 0.813 * (cr-128) - 0.391 * (cb-128));
- b = (GLint) (1.164 * (y0-16) + 2.018 * (cb-128));
- }
- texel[RCOMP] = CLAMP(r, 0, CHAN_MAX);
- texel[GCOMP] = CLAMP(g, 0, CHAN_MAX);
- texel[BCOMP] = CLAMP(b, 0, CHAN_MAX);
- texel[ACOMP] = CHAN_MAX;
+ const GLubyte y = (i & 1) ? y1 : y0; /* choose even/odd luminance */
+ GLfloat r = 1.164F * (y - 16) + 1.596F * (cr - 128);
+ GLfloat g = 1.164F * (y - 16) - 0.813F * (cr - 128) - 0.391F * (cb - 128);
+ GLfloat b = 1.164F * (y - 16) + 2.018F * (cb - 128);
+ r *= (1.0F / 255.0F);
+ g *= (1.0F / 255.0F);
+ b *= (1.0F / 255.0F);
+ texel[RCOMP] = CLAMP(r, 0.0F, 1.0F);
+ texel[GCOMP] = CLAMP(g, 0.0F, 1.0F);
+ texel[BCOMP] = CLAMP(b, 0.0F, 1.0F);
+ texel[ACOMP] = 1.0F;
}
#if DIM == 3
@@ -1339,11 +1376,11 @@ static void store_texel_ycbcr(struct gl_texture_image *texImage,
/* MESA_FORMAT_YCBCR_REV *****************************************************/
-/* Fetch texel from 1D, 2D or 3D ycbcr_rev texture, return 4 GLchans */
-/* We convert YCbCr to RGB here */
-/* XXX this may break if GLchan != GLubyte */
-static void FETCH(ycbcr_rev)( const struct gl_texture_image *texImage,
- GLint i, GLint j, GLint k, GLchan *texel )
+/* Fetch texel from 1D, 2D or 3D ycbcr_rev texture, return 4 GLfloats.
+ * We convert YCbCr to RGB here.
+ */
+static void FETCH(f_ycbcr_rev)( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
{
const GLushort *src0 = TEXEL_ADDR(GLushort, texImage, (i & ~1), j, k, 1); /* even */
const GLushort *src1 = src0 + 1; /* odd */
@@ -1351,23 +1388,17 @@ static void FETCH(ycbcr_rev)( const struct gl_texture_image *texImage,
const GLubyte cr = (*src0 >> 8) & 0xff; /* chroma V */
const GLubyte y1 = *src1 & 0xff; /* luminance */
const GLubyte cb = (*src1 >> 8) & 0xff; /* chroma U */
- GLint r, g, b;
- if (i & 1) {
- /* odd pixel: use y1,cr,cb */
- r = (GLint) (1.164 * (y1-16) + 1.596 * (cr-128));
- g = (GLint) (1.164 * (y1-16) - 0.813 * (cr-128) - 0.391 * (cb-128));
- b = (GLint) (1.164 * (y1-16) + 2.018 * (cb-128));
- }
- else {
- /* even pixel: use y0,cr,cb */
- r = (GLint) (1.164 * (y0-16) + 1.596 * (cr-128));
- g = (GLint) (1.164 * (y0-16) - 0.813 * (cr-128) - 0.391 * (cb-128));
- b = (GLint) (1.164 * (y0-16) + 2.018 * (cb-128));
- }
- texel[RCOMP] = CLAMP(r, 0, CHAN_MAX);
- texel[GCOMP] = CLAMP(g, 0, CHAN_MAX);
- texel[BCOMP] = CLAMP(b, 0, CHAN_MAX);
- texel[ACOMP] = CHAN_MAX;
+ const GLubyte y = (i & 1) ? y1 : y0; /* choose even/odd luminance */
+ GLfloat r = 1.164F * (y - 16) + 1.596F * (cr - 128);
+ GLfloat g = 1.164F * (y - 16) - 0.813F * (cr - 128) - 0.391F * (cb - 128);
+ GLfloat b = 1.164F * (y - 16) + 2.018F * (cb - 128);
+ r *= (1.0F / 255.0F);
+ g *= (1.0F / 255.0F);
+ b *= (1.0F / 255.0F);
+ texel[RCOMP] = CLAMP(r, 0.0F, 1.0F);
+ texel[GCOMP] = CLAMP(g, 0.0F, 1.0F);
+ texel[BCOMP] = CLAMP(b, 0.0F, 1.0F);
+ texel[ACOMP] = 1.0F;
}
#if DIM == 3
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-29 05:30:58 +0000