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-rw-r--r--src/mesa/main/texformat.c1571
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diff --git a/src/mesa/main/texformat.c b/src/mesa/main/texformat.c
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+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5.1
+ *
+ * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file texformat.c
+ * Texture formats.
+ *
+ * \author Gareth Hughes
+ */
+
+
+#include "colormac.h"
+#include "context.h"
+#include "texformat.h"
+#include "texstore.h"
+
+
+#if FEATURE_EXT_texture_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 GLfloat
+nonlinear_to_linear(GLubyte cs8)
+{
+ static GLfloat table[256];
+ static GLboolean tableReady = GL_FALSE;
+ if (!tableReady) {
+ /* compute lookup table now */
+ GLuint i;
+ for (i = 0; i < 256; i++) {
+ const GLfloat cs = UBYTE_TO_FLOAT(i);
+ if (cs <= 0.04045) {
+ table[i] = cs / 12.92;
+ }
+ else {
+ table[i] = _mesa_pow((cs + 0.055) / 1.055, 2.4);
+ }
+ }
+ tableReady = GL_TRUE;
+ }
+ return table[cs8];
+}
+
+
+#endif /* FEATURE_EXT_texture_sRGB */
+
+
+/* Texel fetch routines for all supported formats
+ */
+#define DIM 1
+#include "texformat_tmp.h"
+
+#define DIM 2
+#include "texformat_tmp.h"
+
+#define DIM 3
+#include "texformat_tmp.h"
+
+/**
+ * Null texel fetch function.
+ *
+ * Have to have this so the FetchTexel function pointer is never NULL.
+ */
+static void fetch_null_texel( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLchan *texel )
+{
+ (void) texImage; (void) i; (void) j; (void) k;
+ texel[RCOMP] = 0;
+ texel[GCOMP] = 0;
+ texel[BCOMP] = 0;
+ texel[ACOMP] = 0;
+ _mesa_warning(NULL, "fetch_null_texel() called!");
+}
+
+static void fetch_null_texelf( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel )
+{
+ (void) texImage; (void) i; (void) j; (void) k;
+ texel[RCOMP] = 0.0;
+ texel[GCOMP] = 0.0;
+ texel[BCOMP] = 0.0;
+ texel[ACOMP] = 0.0;
+ _mesa_warning(NULL, "fetch_null_texelf() called!");
+}
+
+static void store_null_texel(struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, const void *texel)
+{
+ (void) texImage;
+ (void) i;
+ (void) j;
+ (void) k;
+ (void) texel;
+ /* no-op */
+}
+
+
+/**
+ * Notes about the predefined gl_texture_formats:
+ *
+ * 1. There are 1D, 2D and 3D functions for fetching texels from texture
+ * images, returning both GLchan values and GLfloat values. (six
+ * functions in total)
+ * You don't have to provide both the GLchan and GLfloat functions;
+ * just one or the other is OK. Mesa will use an "adaptor" to convert
+ * between GLchan/GLfloat when needed.
+ * Since the adaptors have small performance penalty, we provide both
+ * GLchan and GLfloat functions for some common formats like RGB, RGBA.
+ */
+
+
+/***************************************************************/
+/** \name Default GLchan-based formats */
+/*@{*/
+
+const struct gl_texture_format _mesa_texformat_rgba = {
+ MESA_FORMAT_RGBA, /* MesaFormat */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ CHAN_BITS, /* RedBits */
+ CHAN_BITS, /* GreenBits */
+ CHAN_BITS, /* BlueBits */
+ CHAN_BITS, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 4 * sizeof(GLchan), /* TexelBytes */
+ _mesa_texstore_rgba, /* StoreTexImageFunc */
+ fetch_texel_1d_rgba, /* FetchTexel1D */
+ fetch_texel_2d_rgba, /* FetchTexel2D */
+ fetch_texel_3d_rgba, /* FetchTexel3D */
+ fetch_texel_1d_f_rgba, /* FetchTexel1Df */
+ fetch_texel_2d_f_rgba, /* FetchTexel2Df */
+ fetch_texel_3d_f_rgba, /* FetchTexel3Df */
+ store_texel_rgba /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_rgb = {
+ MESA_FORMAT_RGB, /* MesaFormat */
+ GL_RGB, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ CHAN_BITS, /* RedBits */
+ CHAN_BITS, /* GreenBits */
+ CHAN_BITS, /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 3 * sizeof(GLchan), /* TexelBytes */
+ _mesa_texstore_rgba,/*yes*/ /* StoreTexImageFunc */
+ fetch_texel_1d_rgb, /* FetchTexel1D */
+ fetch_texel_2d_rgb, /* FetchTexel2D */
+ fetch_texel_3d_rgb, /* FetchTexel3D */
+ fetch_texel_1d_f_rgb, /* FetchTexel1Df */
+ fetch_texel_2d_f_rgb, /* FetchTexel2Df */
+ fetch_texel_3d_f_rgb, /* FetchTexel3Df */
+ store_texel_rgb /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_alpha = {
+ MESA_FORMAT_ALPHA, /* MesaFormat */
+ GL_ALPHA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ CHAN_BITS, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ sizeof(GLchan), /* TexelBytes */
+ _mesa_texstore_rgba,/*yes*/ /* StoreTexImageFunc */
+ fetch_texel_1d_alpha, /* FetchTexel1D */
+ fetch_texel_2d_alpha, /* FetchTexel2D */
+ fetch_texel_3d_alpha, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_alpha /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_luminance = {
+ MESA_FORMAT_LUMINANCE, /* MesaFormat */
+ GL_LUMINANCE, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 0, /* AlphaBits */
+ CHAN_BITS, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ sizeof(GLchan), /* TexelBytes */
+ _mesa_texstore_rgba,/*yes*/ /* StoreTexImageFunc */
+ fetch_texel_1d_luminance, /* FetchTexel1D */
+ fetch_texel_2d_luminance, /* FetchTexel2D */
+ fetch_texel_3d_luminance, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_luminance /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_luminance_alpha = {
+ MESA_FORMAT_LUMINANCE_ALPHA, /* MesaFormat */
+ GL_LUMINANCE_ALPHA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ CHAN_BITS, /* AlphaBits */
+ CHAN_BITS, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 2 * sizeof(GLchan), /* TexelBytes */
+ _mesa_texstore_rgba,/*yes*/ /* StoreTexImageFunc */
+ fetch_texel_1d_luminance_alpha, /* FetchTexel1D */
+ fetch_texel_2d_luminance_alpha, /* FetchTexel2D */
+ fetch_texel_3d_luminance_alpha, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_luminance_alpha /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_intensity = {
+ MESA_FORMAT_INTENSITY, /* MesaFormat */
+ GL_INTENSITY, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ CHAN_BITS, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ sizeof(GLchan), /* TexelBytes */
+ _mesa_texstore_rgba,/*yes*/ /* StoreTexImageFunc */
+ fetch_texel_1d_intensity, /* FetchTexel1D */
+ fetch_texel_2d_intensity, /* FetchTexel2D */
+ fetch_texel_3d_intensity, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_intensity /* StoreTexel */
+};
+
+
+#if FEATURE_EXT_texture_sRGB
+
+const struct gl_texture_format _mesa_texformat_srgb8 = {
+ MESA_FORMAT_SRGB8, /* MesaFormat */
+ GL_RGB, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 8, /* RedBits */
+ 8, /* GreenBits */
+ 8, /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 3, /* TexelBytes */
+ _mesa_texstore_srgb8, /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel2D */
+ NULL, /* FetchTexel3D */
+ fetch_texel_1d_srgb8, /* FetchTexel1Df */
+ fetch_texel_2d_srgb8, /* FetchTexel2Df */
+ fetch_texel_3d_srgb8, /* FetchTexel3Df */
+ store_texel_srgb8 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_srgba8 = {
+ MESA_FORMAT_SRGBA8, /* MesaFormat */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 8, /* RedBits */
+ 8, /* GreenBits */
+ 8, /* BlueBits */
+ 8, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 4, /* TexelBytes */
+ _mesa_texstore_srgba8, /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel2D */
+ NULL, /* FetchTexel3D */
+ fetch_texel_1d_srgba8, /* FetchTexel1Df */
+ fetch_texel_2d_srgba8, /* FetchTexel2Df */
+ fetch_texel_3d_srgba8, /* FetchTexel3Df */
+ store_texel_srgba8 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_sl8 = {
+ MESA_FORMAT_SL8, /* MesaFormat */
+ GL_LUMINANCE, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 0, /* AlphaBits */
+ 8, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 1, /* TexelBytes */
+ _mesa_texstore_sl8, /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel2D */
+ NULL, /* FetchTexel3D */
+ fetch_texel_1d_sl8, /* FetchTexel1Df */
+ fetch_texel_2d_sl8, /* FetchTexel2Df */
+ fetch_texel_3d_sl8, /* FetchTexel3Df */
+ store_texel_sl8 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_sla8 = {
+ MESA_FORMAT_SLA8, /* MesaFormat */
+ GL_LUMINANCE_ALPHA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 8, /* AlphaBits */
+ 8, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 2, /* TexelBytes */
+ _mesa_texstore_sla8, /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel2D */
+ NULL, /* FetchTexel3D */
+ fetch_texel_1d_sla8, /* FetchTexel1Df */
+ fetch_texel_2d_sla8, /* FetchTexel2Df */
+ fetch_texel_3d_sla8, /* FetchTexel3Df */
+ store_texel_sla8 /* StoreTexel */
+};
+
+#endif /* FEATURE_EXT_texture_sRGB */
+
+const struct gl_texture_format _mesa_texformat_rgba_float32 = {
+ MESA_FORMAT_RGBA_FLOAT32, /* MesaFormat */
+ GL_RGBA, /* BaseFormat */
+ GL_FLOAT, /* DataType */
+ 8 * sizeof(GLfloat), /* RedBits */
+ 8 * sizeof(GLfloat), /* GreenBits */
+ 8 * sizeof(GLfloat), /* BlueBits */
+ 8 * sizeof(GLfloat), /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 4 * sizeof(GLfloat), /* TexelBytes */
+ _mesa_texstore_rgba_float32, /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel1D */
+ fetch_texel_1d_f_rgba_f32, /* FetchTexel1Df */
+ fetch_texel_2d_f_rgba_f32, /* FetchTexel2Df */
+ fetch_texel_3d_f_rgba_f32, /* FetchTexel3Df */
+ store_texel_rgba_f32 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_rgba_float16 = {
+ MESA_FORMAT_RGBA_FLOAT16, /* MesaFormat */
+ GL_RGBA, /* BaseFormat */
+ GL_FLOAT, /* DataType */
+ 8 * sizeof(GLhalfARB), /* RedBits */
+ 8 * sizeof(GLhalfARB), /* GreenBits */
+ 8 * sizeof(GLhalfARB), /* BlueBits */
+ 8 * sizeof(GLhalfARB), /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 4 * sizeof(GLhalfARB), /* TexelBytes */
+ _mesa_texstore_rgba_float16, /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel1D */
+ fetch_texel_1d_f_rgba_f16, /* FetchTexel1Df */
+ fetch_texel_2d_f_rgba_f16, /* FetchTexel2Df */
+ fetch_texel_3d_f_rgba_f16, /* FetchTexel3Df */
+ store_texel_rgba_f16 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_rgb_float32 = {
+ MESA_FORMAT_RGB_FLOAT32, /* MesaFormat */
+ GL_RGB, /* BaseFormat */
+ GL_FLOAT, /* DataType */
+ 8 * sizeof(GLfloat), /* RedBits */
+ 8 * sizeof(GLfloat), /* GreenBits */
+ 8 * sizeof(GLfloat), /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 3 * sizeof(GLfloat), /* TexelBytes */
+ _mesa_texstore_rgba_float32,/*yes*/ /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel1D */
+ fetch_texel_1d_f_rgb_f32, /* FetchTexel1Df */
+ fetch_texel_2d_f_rgb_f32, /* FetchTexel2Df */
+ fetch_texel_3d_f_rgb_f32, /* FetchTexel3Df */
+ store_texel_rgb_f32 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_rgb_float16 = {
+ MESA_FORMAT_RGB_FLOAT16, /* MesaFormat */
+ GL_RGB, /* BaseFormat */
+ GL_FLOAT, /* DataType */
+ 8 * sizeof(GLhalfARB), /* RedBits */
+ 8 * sizeof(GLhalfARB), /* GreenBits */
+ 8 * sizeof(GLhalfARB), /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 3 * sizeof(GLhalfARB), /* TexelBytes */
+ _mesa_texstore_rgba_float16,/*yes*/ /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel1D */
+ fetch_texel_1d_f_rgb_f16, /* FetchTexel1Df */
+ fetch_texel_2d_f_rgb_f16, /* FetchTexel2Df */
+ fetch_texel_3d_f_rgb_f16, /* FetchTexel3Df */
+ store_texel_rgb_f16 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_alpha_float32 = {
+ MESA_FORMAT_ALPHA_FLOAT32, /* MesaFormat */
+ GL_ALPHA, /* BaseFormat */
+ GL_FLOAT, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 8 * sizeof(GLfloat), /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 1 * sizeof(GLfloat), /* TexelBytes */
+ _mesa_texstore_rgba_float32,/*yes*/ /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel1D */
+ fetch_texel_1d_f_alpha_f32, /* FetchTexel1Df */
+ fetch_texel_2d_f_alpha_f32, /* FetchTexel2Df */
+ fetch_texel_3d_f_alpha_f32, /* FetchTexel3Df */
+ store_texel_alpha_f32 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_alpha_float16 = {
+ MESA_FORMAT_ALPHA_FLOAT16, /* MesaFormat */
+ GL_ALPHA, /* BaseFormat */
+ GL_FLOAT, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 8 * sizeof(GLhalfARB), /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 1 * sizeof(GLhalfARB), /* TexelBytes */
+ _mesa_texstore_rgba_float16,/*yes*/ /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel1D */
+ fetch_texel_1d_f_alpha_f16, /* FetchTexel1Df */
+ fetch_texel_2d_f_alpha_f16, /* FetchTexel2Df */
+ fetch_texel_3d_f_alpha_f16, /* FetchTexel3Df */
+ store_texel_alpha_f16 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_luminance_float32 = {
+ MESA_FORMAT_LUMINANCE_FLOAT32, /* MesaFormat */
+ GL_LUMINANCE, /* BaseFormat */
+ GL_FLOAT, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 0, /* AlphaBits */
+ 8 * sizeof(GLfloat), /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 1 * sizeof(GLfloat), /* TexelBytes */
+ _mesa_texstore_rgba_float32,/*yes*/ /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel2D */
+ NULL, /* FetchTexel3D */
+ fetch_texel_1d_f_luminance_f32, /* FetchTexel1Df */
+ fetch_texel_2d_f_luminance_f32, /* FetchTexel2Df */
+ fetch_texel_3d_f_luminance_f32, /* FetchTexel3Df */
+ store_texel_luminance_f32 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_luminance_float16 = {
+ MESA_FORMAT_LUMINANCE_FLOAT16, /* MesaFormat */
+ GL_LUMINANCE, /* BaseFormat */
+ GL_FLOAT, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 0, /* AlphaBits */
+ 8 * sizeof(GLhalfARB), /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 1 * sizeof(GLhalfARB), /* TexelBytes */
+ _mesa_texstore_rgba_float16,/*yes*/ /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel2D */
+ NULL, /* FetchTexel3D */
+ fetch_texel_1d_f_luminance_f16, /* FetchTexel1Df */
+ fetch_texel_2d_f_luminance_f16, /* FetchTexel2Df */
+ fetch_texel_3d_f_luminance_f16, /* FetchTexel3Df */
+ store_texel_luminance_f16 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_luminance_alpha_float32 = {
+ MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32, /* MesaFormat */
+ GL_LUMINANCE_ALPHA, /* BaseFormat */
+ GL_FLOAT, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 8 * sizeof(GLfloat), /* AlphaBits */
+ 8 * sizeof(GLfloat), /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 2 * sizeof(GLfloat), /* TexelBytes */
+ _mesa_texstore_rgba_float32, /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel2D */
+ NULL, /* FetchTexel3D */
+ fetch_texel_1d_f_luminance_alpha_f32,/* FetchTexel1Df */
+ fetch_texel_2d_f_luminance_alpha_f32,/* FetchTexel2Df */
+ fetch_texel_3d_f_luminance_alpha_f32,/* FetchTexel3Df */
+ store_texel_luminance_alpha_f32 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_luminance_alpha_float16 = {
+ MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16, /* MesaFormat */
+ GL_LUMINANCE_ALPHA, /* BaseFormat */
+ GL_FLOAT, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 8 * sizeof(GLhalfARB), /* AlphaBits */
+ 8 * sizeof(GLhalfARB), /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 2 * sizeof(GLhalfARB), /* TexelBytes */
+ _mesa_texstore_rgba_float16, /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel2D */
+ NULL, /* FetchTexel3D */
+ fetch_texel_1d_f_luminance_alpha_f16,/* FetchTexel1Df */
+ fetch_texel_2d_f_luminance_alpha_f16,/* FetchTexel2Df */
+ fetch_texel_3d_f_luminance_alpha_f16,/* FetchTexel3Df */
+ store_texel_luminance_alpha_f16 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_intensity_float32 = {
+ MESA_FORMAT_INTENSITY_FLOAT32, /* MesaFormat */
+ GL_INTENSITY, /* BaseFormat */
+ GL_FLOAT, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 8 * sizeof(GLfloat), /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 1 * sizeof(GLfloat), /* TexelBytes */
+ _mesa_texstore_rgba_float32,/*yes*/ /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel2D */
+ NULL, /* FetchTexel3D */
+ fetch_texel_1d_f_intensity_f32, /* FetchTexel1Df */
+ fetch_texel_2d_f_intensity_f32, /* FetchTexel2Df */
+ fetch_texel_3d_f_intensity_f32, /* FetchTexel3Df */
+ store_texel_intensity_f32 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_intensity_float16 = {
+ MESA_FORMAT_INTENSITY_FLOAT16, /* MesaFormat */
+ GL_INTENSITY, /* BaseFormat */
+ GL_FLOAT, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 8 * sizeof(GLhalfARB), /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 1 * sizeof(GLhalfARB), /* TexelBytes */
+ _mesa_texstore_rgba_float16,/*yes*/ /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel2D */
+ NULL, /* FetchTexel3D */
+ fetch_texel_1d_f_intensity_f16, /* FetchTexel1Df */
+ fetch_texel_2d_f_intensity_f16, /* FetchTexel2Df */
+ fetch_texel_3d_f_intensity_f16, /* FetchTexel3Df */
+ store_texel_intensity_f16 /* StoreTexel */
+};
+
+
+/*@}*/
+
+
+/***************************************************************/
+/** \name Hardware formats */
+/*@{*/
+
+const struct gl_texture_format _mesa_texformat_rgba8888 = {
+ MESA_FORMAT_RGBA8888, /* MesaFormat */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 8, /* RedBits */
+ 8, /* GreenBits */
+ 8, /* BlueBits */
+ 8, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 4, /* TexelBytes */
+ _mesa_texstore_rgba8888, /* StoreTexImageFunc */
+ fetch_texel_1d_rgba8888, /* FetchTexel1D */
+ fetch_texel_2d_rgba8888, /* FetchTexel2D */
+ fetch_texel_3d_rgba8888, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_rgba8888 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_rgba8888_rev = {
+ MESA_FORMAT_RGBA8888_REV, /* MesaFormat */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 8, /* RedBits */
+ 8, /* GreenBits */
+ 8, /* BlueBits */
+ 8, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 4, /* TexelBytes */
+ _mesa_texstore_rgba8888, /* StoreTexImageFunc */
+ fetch_texel_1d_rgba8888_rev, /* FetchTexel1D */
+ fetch_texel_2d_rgba8888_rev, /* FetchTexel2D */
+ fetch_texel_3d_rgba8888_rev, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_rgba8888_rev /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_argb8888 = {
+ MESA_FORMAT_ARGB8888, /* MesaFormat */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 8, /* RedBits */
+ 8, /* GreenBits */
+ 8, /* BlueBits */
+ 8, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 4, /* TexelBytes */
+ _mesa_texstore_argb8888, /* StoreTexImageFunc */
+ fetch_texel_1d_argb8888, /* FetchTexel1D */
+ fetch_texel_2d_argb8888, /* FetchTexel2D */
+ fetch_texel_3d_argb8888, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_argb8888 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_argb8888_rev = {
+ MESA_FORMAT_ARGB8888_REV, /* MesaFormat */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 8, /* RedBits */
+ 8, /* GreenBits */
+ 8, /* BlueBits */
+ 8, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 4, /* TexelBytes */
+ _mesa_texstore_argb8888, /* StoreTexImageFunc */
+ fetch_texel_1d_argb8888_rev, /* FetchTexel1D */
+ fetch_texel_2d_argb8888_rev, /* FetchTexel2D */
+ fetch_texel_3d_argb8888_rev, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_argb8888_rev /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_rgb888 = {
+ MESA_FORMAT_RGB888, /* MesaFormat */
+ GL_RGB, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 8, /* RedBits */
+ 8, /* GreenBits */
+ 8, /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 3, /* TexelBytes */
+ _mesa_texstore_rgb888, /* StoreTexImageFunc */
+ fetch_texel_1d_rgb888, /* FetchTexel1D */
+ fetch_texel_2d_rgb888, /* FetchTexel2D */
+ fetch_texel_3d_rgb888, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_rgb888 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_bgr888 = {
+ MESA_FORMAT_BGR888, /* MesaFormat */
+ GL_RGB, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 8, /* RedBits */
+ 8, /* GreenBits */
+ 8, /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 3, /* TexelBytes */
+ _mesa_texstore_bgr888, /* StoreTexImageFunc */
+ fetch_texel_1d_bgr888, /* FetchTexel1D */
+ fetch_texel_2d_bgr888, /* FetchTexel2D */
+ fetch_texel_3d_bgr888, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_bgr888 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_rgb565 = {
+ MESA_FORMAT_RGB565, /* MesaFormat */
+ GL_RGB, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 5, /* RedBits */
+ 6, /* GreenBits */
+ 5, /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 2, /* TexelBytes */
+ _mesa_texstore_rgb565, /* StoreTexImageFunc */
+ fetch_texel_1d_rgb565, /* FetchTexel1D */
+ fetch_texel_2d_rgb565, /* FetchTexel2D */
+ fetch_texel_3d_rgb565, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_rgb565 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_rgb565_rev = {
+ MESA_FORMAT_RGB565_REV, /* MesaFormat */
+ GL_RGB, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 5, /* RedBits */
+ 6, /* GreenBits */
+ 5, /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 2, /* TexelBytes */
+ _mesa_texstore_rgb565, /* StoreTexImageFunc */
+ fetch_texel_1d_rgb565_rev, /* FetchTexel1D */
+ fetch_texel_2d_rgb565_rev, /* FetchTexel2D */
+ fetch_texel_3d_rgb565_rev, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_rgb565_rev /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_argb4444 = {
+ MESA_FORMAT_ARGB4444, /* MesaFormat */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 4, /* RedBits */
+ 4, /* GreenBits */
+ 4, /* BlueBits */
+ 4, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 2, /* TexelBytes */
+ _mesa_texstore_argb4444, /* StoreTexImageFunc */
+ fetch_texel_1d_argb4444, /* FetchTexel1D */
+ fetch_texel_2d_argb4444, /* FetchTexel2D */
+ fetch_texel_3d_argb4444, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_argb4444 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_argb4444_rev = {
+ MESA_FORMAT_ARGB4444_REV, /* MesaFormat */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 4, /* RedBits */
+ 4, /* GreenBits */
+ 4, /* BlueBits */
+ 4, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 2, /* TexelBytes */
+ _mesa_texstore_argb4444, /* StoreTexImageFunc */
+ fetch_texel_1d_argb4444_rev, /* FetchTexel1D */
+ fetch_texel_2d_argb4444_rev, /* FetchTexel2D */
+ fetch_texel_3d_argb4444_rev, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_argb4444_rev /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_argb1555 = {
+ MESA_FORMAT_ARGB1555, /* MesaFormat */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 5, /* RedBits */
+ 5, /* GreenBits */
+ 5, /* BlueBits */
+ 1, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 2, /* TexelBytes */
+ _mesa_texstore_argb1555, /* StoreTexImageFunc */
+ fetch_texel_1d_argb1555, /* FetchTexel1D */
+ fetch_texel_2d_argb1555, /* FetchTexel2D */
+ fetch_texel_3d_argb1555, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_argb1555 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_argb1555_rev = {
+ MESA_FORMAT_ARGB1555_REV, /* MesaFormat */
+ GL_RGBA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 5, /* RedBits */
+ 5, /* GreenBits */
+ 5, /* BlueBits */
+ 1, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 2, /* TexelBytes */
+ _mesa_texstore_argb1555, /* StoreTexImageFunc */
+ fetch_texel_1d_argb1555_rev, /* FetchTexel1D */
+ fetch_texel_2d_argb1555_rev, /* FetchTexel2D */
+ fetch_texel_3d_argb1555_rev, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_argb1555_rev /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_al88 = {
+ MESA_FORMAT_AL88, /* MesaFormat */
+ GL_LUMINANCE_ALPHA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 8, /* AlphaBits */
+ 8, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 2, /* TexelBytes */
+ _mesa_texstore_al88, /* StoreTexImageFunc */
+ fetch_texel_1d_al88, /* FetchTexel1D */
+ fetch_texel_2d_al88, /* FetchTexel2D */
+ fetch_texel_3d_al88, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_al88 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_al88_rev = {
+ MESA_FORMAT_AL88_REV, /* MesaFormat */
+ GL_LUMINANCE_ALPHA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 8, /* AlphaBits */
+ 8, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 2, /* TexelBytes */
+ _mesa_texstore_al88, /* StoreTexImageFunc */
+ fetch_texel_1d_al88_rev, /* FetchTexel1D */
+ fetch_texel_2d_al88_rev, /* FetchTexel2D */
+ fetch_texel_3d_al88_rev, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_al88_rev /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_rgb332 = {
+ MESA_FORMAT_RGB332, /* MesaFormat */
+ GL_RGB, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 3, /* RedBits */
+ 3, /* GreenBits */
+ 2, /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 1, /* TexelBytes */
+ _mesa_texstore_rgb332, /* StoreTexImageFunc */
+ fetch_texel_1d_rgb332, /* FetchTexel1D */
+ fetch_texel_2d_rgb332, /* FetchTexel2D */
+ fetch_texel_3d_rgb332, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_rgb332 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_a8 = {
+ MESA_FORMAT_A8, /* MesaFormat */
+ GL_ALPHA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 8, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 1, /* TexelBytes */
+ _mesa_texstore_a8, /* StoreTexImageFunc */
+ fetch_texel_1d_a8, /* FetchTexel1D */
+ fetch_texel_2d_a8, /* FetchTexel2D */
+ fetch_texel_3d_a8, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_a8 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_l8 = {
+ MESA_FORMAT_L8, /* MesaFormat */
+ GL_LUMINANCE, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 0, /* AlphaBits */
+ 8, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 1, /* TexelBytes */
+ _mesa_texstore_a8,/*yes*/ /* StoreTexImageFunc */
+ fetch_texel_1d_l8, /* FetchTexel1D */
+ fetch_texel_2d_l8, /* FetchTexel2D */
+ fetch_texel_3d_l8, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_l8 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_i8 = {
+ MESA_FORMAT_I8, /* MesaFormat */
+ GL_INTENSITY, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 8, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 1, /* TexelBytes */
+ _mesa_texstore_a8,/*yes*/ /* StoreTexImageFunc */
+ fetch_texel_1d_i8, /* FetchTexel1D */
+ fetch_texel_2d_i8, /* FetchTexel2D */
+ fetch_texel_3d_i8, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_i8 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_ci8 = {
+ MESA_FORMAT_CI8, /* MesaFormat */
+ GL_COLOR_INDEX, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 8, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 1, /* TexelBytes */
+ _mesa_texstore_ci8, /* StoreTexImageFunc */
+ fetch_texel_1d_ci8, /* FetchTexel1D */
+ fetch_texel_2d_ci8, /* FetchTexel2D */
+ fetch_texel_3d_ci8, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_ci8 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_ycbcr = {
+ MESA_FORMAT_YCBCR, /* MesaFormat */
+ GL_YCBCR_MESA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 2, /* TexelBytes */
+ _mesa_texstore_ycbcr, /* StoreTexImageFunc */
+ fetch_texel_1d_ycbcr, /* FetchTexel1D */
+ fetch_texel_2d_ycbcr, /* FetchTexel2D */
+ fetch_texel_3d_ycbcr, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_ycbcr /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_ycbcr_rev = {
+ MESA_FORMAT_YCBCR_REV, /* MesaFormat */
+ GL_YCBCR_MESA, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 2, /* TexelBytes */
+ _mesa_texstore_ycbcr, /* StoreTexImageFunc */
+ fetch_texel_1d_ycbcr_rev, /* FetchTexel1D */
+ fetch_texel_2d_ycbcr_rev, /* FetchTexel2D */
+ fetch_texel_3d_ycbcr_rev, /* FetchTexel3D */
+ NULL, /* FetchTexel1Df */
+ NULL, /* FetchTexel2Df */
+ NULL, /* FetchTexel3Df */
+ store_texel_ycbcr_rev /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_z24_s8 = {
+ MESA_FORMAT_Z24_S8, /* MesaFormat */
+ GL_DEPTH_STENCIL_EXT, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 24, /* DepthBits */
+ 8, /* StencilBits */
+ 4, /* TexelBytes */
+ _mesa_texstore_z24_s8, /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel2D */
+ NULL, /* FetchTexel3D */
+ fetch_texel_1d_f_z24_s8, /* FetchTexel1Df */
+ fetch_texel_2d_f_z24_s8, /* FetchTexel2Df */
+ fetch_texel_3d_f_z24_s8, /* FetchTexel3Df */
+ store_texel_z24_s8 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_z16 = {
+ MESA_FORMAT_Z16, /* MesaFormat */
+ GL_DEPTH_COMPONENT, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ sizeof(GLushort) * 8, /* DepthBits */
+ 0, /* StencilBits */
+ sizeof(GLushort), /* TexelBytes */
+ _mesa_texstore_z16, /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel1D */
+ fetch_texel_1d_f_z16, /* FetchTexel1Df */
+ fetch_texel_2d_f_z16, /* FetchTexel2Df */
+ fetch_texel_3d_f_z16, /* FetchTexel3Df */
+ store_texel_z16 /* StoreTexel */
+};
+
+const struct gl_texture_format _mesa_texformat_z32 = {
+ MESA_FORMAT_Z32, /* MesaFormat */
+ GL_DEPTH_COMPONENT, /* BaseFormat */
+ GL_UNSIGNED_NORMALIZED_ARB, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ sizeof(GLuint) * 8, /* DepthBits */
+ 0, /* StencilBits */
+ sizeof(GLuint), /* TexelBytes */
+ _mesa_texstore_z32, /* StoreTexImageFunc */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel1D */
+ NULL, /* FetchTexel1D */
+ fetch_texel_1d_f_z32, /* FetchTexel1Df */
+ fetch_texel_2d_f_z32, /* FetchTexel2Df */
+ fetch_texel_3d_f_z32, /* FetchTexel3Df */
+ store_texel_z32 /* StoreTexel */
+};
+
+/*@}*/
+
+
+/***************************************************************/
+/** \name Null format (useful for proxy textures) */
+/*@{*/
+
+const struct gl_texture_format _mesa_null_texformat = {
+ -1, /* MesaFormat */
+ 0, /* BaseFormat */
+ GL_NONE, /* DataType */
+ 0, /* RedBits */
+ 0, /* GreenBits */
+ 0, /* BlueBits */
+ 0, /* AlphaBits */
+ 0, /* LuminanceBits */
+ 0, /* IntensityBits */
+ 0, /* IndexBits */
+ 0, /* DepthBits */
+ 0, /* StencilBits */
+ 0, /* TexelBytes */
+ NULL, /* StoreTexImageFunc */
+ fetch_null_texel, /* FetchTexel1D */
+ fetch_null_texel, /* FetchTexel2D */
+ fetch_null_texel, /* FetchTexel3D */
+ fetch_null_texelf, /* FetchTexel1Df */
+ fetch_null_texelf, /* FetchTexel2Df */
+ fetch_null_texelf, /* FetchTexel3Df */
+ store_null_texel /* StoreTexel */
+};
+
+/*@}*/
+
+
+/**
+ * Choose an appropriate texture format given the format, type and
+ * internalFormat parameters passed to glTexImage().
+ *
+ * \param ctx the GL context.
+ * \param internalFormat user's prefered internal texture format.
+ * \param format incoming image pixel format.
+ * \param type incoming image data type.
+ *
+ * \return a pointer to a gl_texture_format object which describes the
+ * choosen texture format, or NULL on failure.
+ *
+ * This is called via dd_function_table::ChooseTextureFormat. Hardware drivers
+ * will typically override this function with a specialized version.
+ */
+const struct gl_texture_format *
+_mesa_choose_tex_format( GLcontext *ctx, GLint internalFormat,
+ GLenum format, GLenum type )
+{
+ (void) format;
+ (void) type;
+
+ switch (internalFormat) {
+ /* RGBA formats */
+ case 4:
+ case GL_RGBA:
+ case GL_RGB10_A2:
+ case GL_RGBA12:
+ case GL_RGBA16:
+ return &_mesa_texformat_rgba;
+ case GL_RGBA8:
+ return &_mesa_texformat_rgba8888;
+ case GL_RGB5_A1:
+ return &_mesa_texformat_argb1555;
+ case GL_RGBA2:
+ return &_mesa_texformat_argb4444_rev; /* just to test another format*/
+ case GL_RGBA4:
+ return &_mesa_texformat_argb4444;
+
+ /* RGB formats */
+ case 3:
+ case GL_RGB:
+ case GL_RGB10:
+ case GL_RGB12:
+ case GL_RGB16:
+ return &_mesa_texformat_rgb;
+ case GL_RGB8:
+ return &_mesa_texformat_rgb888;
+ case GL_R3_G3_B2:
+ return &_mesa_texformat_rgb332;
+ case GL_RGB4:
+ return &_mesa_texformat_rgb565_rev; /* just to test another format */
+ case GL_RGB5:
+ return &_mesa_texformat_rgb565;
+
+ /* Alpha formats */
+ case GL_ALPHA:
+ case GL_ALPHA4:
+ case GL_ALPHA12:
+ case GL_ALPHA16:
+ return &_mesa_texformat_alpha;
+ case GL_ALPHA8:
+ return &_mesa_texformat_a8;
+
+ /* Luminance formats */
+ case 1:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE4:
+ case GL_LUMINANCE12:
+ case GL_LUMINANCE16:
+ return &_mesa_texformat_luminance;
+ case GL_LUMINANCE8:
+ return &_mesa_texformat_l8;
+
+ /* Luminance/Alpha formats */
+ case 2:
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE4_ALPHA4:
+ case GL_LUMINANCE6_ALPHA2:
+ case GL_LUMINANCE12_ALPHA4:
+ case GL_LUMINANCE12_ALPHA12:
+ case GL_LUMINANCE16_ALPHA16:
+ return &_mesa_texformat_luminance_alpha;
+ case GL_LUMINANCE8_ALPHA8:
+ return &_mesa_texformat_al88;
+
+ case GL_INTENSITY:
+ case GL_INTENSITY4:
+ case GL_INTENSITY12:
+ case GL_INTENSITY16:
+ return &_mesa_texformat_intensity;
+ case GL_INTENSITY8:
+ return &_mesa_texformat_i8;
+
+ case GL_COLOR_INDEX:
+ case GL_COLOR_INDEX1_EXT:
+ case GL_COLOR_INDEX2_EXT:
+ case GL_COLOR_INDEX4_EXT:
+ case GL_COLOR_INDEX12_EXT:
+ case GL_COLOR_INDEX16_EXT:
+ case GL_COLOR_INDEX8_EXT:
+ return &_mesa_texformat_ci8;
+
+ default:
+ ; /* fallthrough */
+ }
+
+ if (ctx->Extensions.SGIX_depth_texture ||
+ ctx->Extensions.ARB_depth_texture) {
+ switch (internalFormat) {
+ case GL_DEPTH_COMPONENT:
+ case GL_DEPTH_COMPONENT24_SGIX:
+ case GL_DEPTH_COMPONENT32_SGIX:
+ return &_mesa_texformat_z32;
+ case GL_DEPTH_COMPONENT16_SGIX:
+ return &_mesa_texformat_z16;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_texture_compression) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_ALPHA_ARB:
+ return &_mesa_texformat_alpha;
+ case GL_COMPRESSED_LUMINANCE_ARB:
+ return &_mesa_texformat_luminance;
+ case GL_COMPRESSED_LUMINANCE_ALPHA_ARB:
+ return &_mesa_texformat_luminance_alpha;
+ case GL_COMPRESSED_INTENSITY_ARB:
+ return &_mesa_texformat_intensity;
+ case GL_COMPRESSED_RGB_ARB:
+ if (ctx->Extensions.TDFX_texture_compression_FXT1)
+ return &_mesa_texformat_rgb_fxt1;
+ else if (ctx->Extensions.EXT_texture_compression_s3tc ||
+ ctx->Extensions.S3_s3tc)
+ return &_mesa_texformat_rgb_dxt1;
+ else
+ return &_mesa_texformat_rgb;
+ case GL_COMPRESSED_RGBA_ARB:
+ if (ctx->Extensions.TDFX_texture_compression_FXT1)
+ return &_mesa_texformat_rgba_fxt1;
+ else if (ctx->Extensions.EXT_texture_compression_s3tc ||
+ ctx->Extensions.S3_s3tc)
+ return &_mesa_texformat_rgba_dxt3; /* Not rgba_dxt1, see spec */
+ else
+ return &_mesa_texformat_rgba;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.MESA_ycbcr_texture) {
+ if (internalFormat == GL_YCBCR_MESA) {
+ if (type == GL_UNSIGNED_SHORT_8_8_MESA)
+ return &_mesa_texformat_ycbcr;
+ else
+ return &_mesa_texformat_ycbcr_rev;
+ }
+ }
+
+ if (ctx->Extensions.TDFX_texture_compression_FXT1) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB_FXT1_3DFX:
+ return &_mesa_texformat_rgb_fxt1;
+ case GL_COMPRESSED_RGBA_FXT1_3DFX:
+ return &_mesa_texformat_rgba_fxt1;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_texture_compression_s3tc) {
+ switch (internalFormat) {
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ return &_mesa_texformat_rgb_dxt1;
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ return &_mesa_texformat_rgba_dxt1;
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ return &_mesa_texformat_rgba_dxt3;
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ return &_mesa_texformat_rgba_dxt5;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.S3_s3tc) {
+ switch (internalFormat) {
+ case GL_RGB_S3TC:
+ case GL_RGB4_S3TC:
+ return &_mesa_texformat_rgb_dxt1;
+ case GL_RGBA_S3TC:
+ case GL_RGBA4_S3TC:
+ return &_mesa_texformat_rgba_dxt3;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.ARB_texture_float) {
+ switch (internalFormat) {
+ case GL_ALPHA16F_ARB:
+ return &_mesa_texformat_alpha_float16;
+ case GL_ALPHA32F_ARB:
+ return &_mesa_texformat_alpha_float32;
+ case GL_LUMINANCE16F_ARB:
+ return &_mesa_texformat_luminance_float16;
+ case GL_LUMINANCE32F_ARB:
+ return &_mesa_texformat_luminance_float32;
+ case GL_LUMINANCE_ALPHA16F_ARB:
+ return &_mesa_texformat_luminance_alpha_float16;
+ case GL_LUMINANCE_ALPHA32F_ARB:
+ return &_mesa_texformat_luminance_alpha_float32;
+ case GL_INTENSITY16F_ARB:
+ return &_mesa_texformat_intensity_float16;
+ case GL_INTENSITY32F_ARB:
+ return &_mesa_texformat_intensity_float32;
+ case GL_RGB16F_ARB:
+ return &_mesa_texformat_rgb_float16;
+ case GL_RGB32F_ARB:
+ return &_mesa_texformat_rgb_float32;
+ case GL_RGBA16F_ARB:
+ return &_mesa_texformat_rgba_float16;
+ case GL_RGBA32F_ARB:
+ return &_mesa_texformat_rgba_float32;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+ if (ctx->Extensions.EXT_packed_depth_stencil) {
+ switch (internalFormat) {
+ case GL_DEPTH_STENCIL_EXT:
+ case GL_DEPTH24_STENCIL8_EXT:
+ return &_mesa_texformat_z24_s8;
+ default:
+ ; /* fallthrough */
+ }
+ }
+
+#if FEATURE_EXT_texture_sRGB
+ if (ctx->Extensions.EXT_texture_sRGB) {
+ switch (internalFormat) {
+ case GL_SRGB_EXT:
+ case GL_SRGB8_EXT:
+ return &_mesa_texformat_srgb8;
+ case GL_SRGB_ALPHA_EXT:
+ case GL_SRGB8_ALPHA8_EXT:
+ return &_mesa_texformat_srgba8;
+ case GL_SLUMINANCE_EXT:
+ case GL_SLUMINANCE8_EXT:
+ return &_mesa_texformat_sl8;
+ case GL_SLUMINANCE_ALPHA_EXT:
+ case GL_SLUMINANCE8_ALPHA8_EXT:
+ return &_mesa_texformat_sla8;
+ /* NOTE: not supporting any compression of sRGB at this time */
+ case GL_COMPRESSED_SRGB_EXT:
+ return &_mesa_texformat_srgb8;
+ case GL_COMPRESSED_SRGB_ALPHA_EXT:
+ return &_mesa_texformat_srgba8;
+ case GL_COMPRESSED_SLUMINANCE_EXT:
+ return &_mesa_texformat_sl8;
+ case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
+ return &_mesa_texformat_sla8;
+ case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
+ return &_mesa_texformat_srgb8;
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
+ return &_mesa_texformat_srgba8;
+ default:
+ ; /* fallthrough */
+ }
+ }
+#endif /* FEATURE_EXT_texture_sRGB */
+
+ _mesa_problem(ctx, "unexpected format in _mesa_choose_tex_format()");
+ return NULL;
+}