/* * Mesa 3-D graphics library * Version: 6.1 * * Copyright (C) 1999-2004 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 "glheader.h" #include "colormac.h" #include "context.h" #include "image.h" #include "imports.h" #include "mtypes.h" #include "texformat.h" #include "teximage.h" #include "texstate.h" #include "texstore.h" /* 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) { /* no-op */ } /***************************************************************/ /** \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 */ 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 */ 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 */ sizeof(GLchan), /* TexelBytes */ _mesa_texstore_rgba,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_alpha, /* FetchTexel1D */ fetch_texel_2d_alpha, /* FetchTexel2D */ fetch_texel_3d_alpha, /* FetchTexel3D */ fetch_texel_1d_f_alpha, /* FetchTexel1Df */ fetch_texel_2d_f_alpha, /* FetchTexel2Df */ fetch_texel_3d_f_alpha, /* 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 */ sizeof(GLchan), /* TexelBytes */ _mesa_texstore_rgba,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_luminance, /* FetchTexel1D */ fetch_texel_2d_luminance, /* FetchTexel2D */ fetch_texel_3d_luminance, /* FetchTexel3D */ fetch_texel_1d_f_luminance, /* FetchTexel1Df */ fetch_texel_2d_f_luminance, /* FetchTexel2Df */ fetch_texel_3d_f_luminance, /* 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 */ 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 */ fetch_texel_1d_f_luminance_alpha, /* FetchTexel1Df */ fetch_texel_2d_f_luminance_alpha, /* FetchTexel2Df */ fetch_texel_3d_f_luminance_alpha, /* 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 */ sizeof(GLchan), /* TexelBytes */ _mesa_texstore_rgba,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_intensity, /* FetchTexel1D */ fetch_texel_2d_intensity, /* FetchTexel2D */ fetch_texel_3d_intensity, /* FetchTexel3D */ fetch_texel_1d_f_intensity, /* FetchTexel1Df */ fetch_texel_2d_f_intensity, /* FetchTexel2Df */ fetch_texel_3d_f_intensity, /* FetchTexel3Df */ store_texel_intensity /* StoreTexel */ }; const struct gl_texture_format _mesa_texformat_depth_component_float32 = { MESA_FORMAT_DEPTH_COMPONENT_FLOAT32, /* 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(GLfloat) * 8, /* DepthBits */ sizeof(GLfloat), /* TexelBytes */ _mesa_texstore_depth_component_float32,/* StoreTexImageFunc */ fetch_null_texel, /* FetchTexel1D */ fetch_null_texel, /* FetchTexel1D */ fetch_null_texel, /* FetchTexel1D */ fetch_texel_1d_f_depth_component_f32,/* FetchTexel1Df */ fetch_texel_2d_f_depth_component_f32,/* FetchTexel2Df */ fetch_texel_3d_f_depth_component_f32,/* FetchTexel3Df */ store_texel_depth_component_f32 /* StoreTexel */ }; const struct gl_texture_format _mesa_texformat_depth_component16 = { MESA_FORMAT_DEPTH_COMPONENT16, /* 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 */ sizeof(GLushort), /* TexelBytes */ _mesa_texstore_depth_component16, /* StoreTexImageFunc */ fetch_null_texel, /* FetchTexel1D */ fetch_null_texel, /* FetchTexel1D */ fetch_null_texel, /* FetchTexel1D */ fetch_texel_1d_f_depth_component16, /* FetchTexel1Df */ fetch_texel_2d_f_depth_component16, /* FetchTexel2Df */ fetch_texel_3d_f_depth_component16, /* FetchTexel3Df */ store_texel_depth_component16 /* StoreTexel */ }; 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 */ 4 * sizeof(GLfloat), /* TexelBytes */ _mesa_texstore_rgba_float32, /* StoreTexImageFunc */ fetch_texel_1d_rgba_f32, /* FetchTexel1D */ fetch_texel_2d_rgba_f32, /* FetchTexel1D */ fetch_texel_3d_rgba_f32, /* 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 */ 4 * sizeof(GLhalfARB), /* TexelBytes */ _mesa_texstore_rgba_float16, /* StoreTexImageFunc */ fetch_texel_1d_rgba_f16, /* FetchTexel1D */ fetch_texel_2d_rgba_f16, /* FetchTexel1D */ fetch_texel_3d_rgba_f16, /* 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 */ 3 * sizeof(GLfloat), /* TexelBytes */ _mesa_texstore_rgba_float32,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_rgb_f32, /* FetchTexel1D */ fetch_texel_2d_rgb_f32, /* FetchTexel1D */ fetch_texel_3d_rgb_f32, /* 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 */ 3 * sizeof(GLhalfARB), /* TexelBytes */ _mesa_texstore_rgba_float16,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_rgb_f16, /* FetchTexel1D */ fetch_texel_2d_rgb_f16, /* FetchTexel1D */ fetch_texel_3d_rgb_f16, /* 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 */ 1 * sizeof(GLfloat), /* TexelBytes */ _mesa_texstore_rgba_float32,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_alpha_f32, /* FetchTexel1D */ fetch_texel_2d_alpha_f32, /* FetchTexel1D */ fetch_texel_3d_alpha_f32, /* 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 */ 1 * sizeof(GLhalfARB), /* TexelBytes */ _mesa_texstore_rgba_float16,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_alpha_f16, /* FetchTexel1D */ fetch_texel_2d_alpha_f16, /* FetchTexel1D */ fetch_texel_3d_alpha_f16, /* 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 */ 1 * sizeof(GLfloat), /* TexelBytes */ _mesa_texstore_rgba_float32,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_luminance_f32, /* FetchTexel1D */ fetch_texel_2d_luminance_f32, /* FetchTexel2D */ fetch_texel_3d_luminance_f32, /* 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 */ 1 * sizeof(GLhalfARB), /* TexelBytes */ _mesa_texstore_rgba_float16,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_luminance_f16, /* FetchTexel1D */ fetch_texel_2d_luminance_f16, /* FetchTexel2D */ fetch_texel_3d_luminance_f16, /* 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 */ 2 * sizeof(GLfloat), /* TexelBytes */ _mesa_texstore_rgba_float32, /* StoreTexImageFunc */ fetch_texel_1d_luminance_alpha_f32, /* FetchTexel1D */ fetch_texel_2d_luminance_alpha_f32, /* FetchTexel2D */ fetch_texel_3d_luminance_alpha_f32, /* 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 */ 2 * sizeof(GLhalfARB), /* TexelBytes */ _mesa_texstore_rgba_float16, /* StoreTexImageFunc */ fetch_texel_1d_luminance_alpha_f16, /* FetchTexel1D */ fetch_texel_2d_luminance_alpha_f16, /* FetchTexel2D */ fetch_texel_3d_luminance_alpha_f16, /* 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 */ 1 * sizeof(GLfloat), /* TexelBytes */ _mesa_texstore_rgba_float32,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_intensity_f32, /* FetchTexel1D */ fetch_texel_2d_intensity_f32, /* FetchTexel2D */ fetch_texel_3d_intensity_f32, /* 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 */ 1 * sizeof(GLhalfARB), /* TexelBytes */ _mesa_texstore_rgba_float16,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_intensity_f16, /* FetchTexel1D */ fetch_texel_2d_intensity_f16, /* FetchTexel2D */ fetch_texel_3d_intensity_f16, /* 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 */ 4, /* TexelBytes */ _mesa_texstore_rgba8888, /* StoreTexImageFunc */ fetch_texel_1d_rgba8888, /* FetchTexel1D */ fetch_texel_2d_rgba8888, /* FetchTexel2D */ fetch_texel_3d_rgba8888, /* FetchTexel3D */ fetch_texel_1d_f_rgba8888, /* FetchTexel1Df */ fetch_texel_2d_f_rgba8888, /* FetchTexel2Df */ fetch_texel_3d_f_rgba8888, /* 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 */ 4, /* TexelBytes */ _mesa_texstore_rgba8888, /* StoreTexImageFunc */ fetch_texel_1d_rgba8888_rev, /* FetchTexel1D */ fetch_texel_2d_rgba8888_rev, /* FetchTexel2D */ fetch_texel_3d_rgba8888_rev, /* FetchTexel3D */ fetch_texel_1d_f_rgba8888_rev, /* FetchTexel1Df */ fetch_texel_2d_f_rgba8888_rev, /* FetchTexel2Df */ fetch_texel_3d_f_rgba8888_rev, /* 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 */ 4, /* TexelBytes */ _mesa_texstore_argb8888, /* StoreTexImageFunc */ fetch_texel_1d_argb8888, /* FetchTexel1D */ fetch_texel_2d_argb8888, /* FetchTexel2D */ fetch_texel_3d_argb8888, /* FetchTexel3D */ fetch_texel_1d_f_argb8888, /* FetchTexel1Df */ fetch_texel_2d_f_argb8888, /* FetchTexel2Df */ fetch_texel_3d_f_argb8888, /* 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 */ 4, /* TexelBytes */ _mesa_texstore_argb8888, /* StoreTexImageFunc */ fetch_texel_1d_argb8888_rev, /* FetchTexel1D */ fetch_texel_2d_argb8888_rev, /* FetchTexel2D */ fetch_texel_3d_argb8888_rev, /* FetchTexel3D */ fetch_texel_1d_f_argb8888_rev, /* FetchTexel1Df */ fetch_texel_2d_f_argb8888_rev, /* FetchTexel2Df */ fetch_texel_3d_f_argb8888_rev, /* 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 */ 3, /* TexelBytes */ _mesa_texstore_rgb888, /* StoreTexImageFunc */ fetch_texel_1d_rgb888, /* FetchTexel1D */ fetch_texel_2d_rgb888, /* FetchTexel2D */ fetch_texel_3d_rgb888, /* FetchTexel3D */ fetch_texel_1d_f_rgb888, /* FetchTexel1Df */ fetch_texel_2d_f_rgb888, /* FetchTexel2Df */ fetch_texel_3d_f_rgb888, /* 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 */ 3, /* TexelBytes */ _mesa_texstore_bgr888, /* StoreTexImageFunc */ fetch_texel_1d_bgr888, /* FetchTexel1D */ fetch_texel_2d_bgr888, /* FetchTexel2D */ fetch_texel_3d_bgr888, /* FetchTexel3D */ fetch_texel_1d_f_bgr888, /* FetchTexel1Df */ fetch_texel_2d_f_bgr888, /* FetchTexel2Df */ fetch_texel_3d_f_bgr888, /* 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 */ 2, /* TexelBytes */ _mesa_texstore_rgb565, /* StoreTexImageFunc */ fetch_texel_1d_rgb565, /* FetchTexel1D */ fetch_texel_2d_rgb565, /* FetchTexel2D */ fetch_texel_3d_rgb565, /* FetchTexel3D */ fetch_texel_1d_f_rgb565, /* FetchTexel1Df */ fetch_texel_2d_f_rgb565, /* FetchTexel2Df */ fetch_texel_3d_f_rgb565, /* 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 */ 2, /* TexelBytes */ _mesa_texstore_rgb565, /* StoreTexImageFunc */ fetch_texel_1d_rgb565_rev, /* FetchTexel1D */ fetch_texel_2d_rgb565_rev, /* FetchTexel2D */ fetch_texel_3d_rgb565_rev, /* FetchTexel3D */ fetch_texel_1d_f_rgb565_rev, /* FetchTexel1Df */ fetch_texel_2d_f_rgb565_rev, /* FetchTexel2Df */ fetch_texel_3d_f_rgb565_rev, /* 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 */ 2, /* TexelBytes */ _mesa_texstore_argb4444, /* StoreTexImageFunc */ fetch_texel_1d_argb4444, /* FetchTexel1D */ fetch_texel_2d_argb4444, /* FetchTexel2D */ fetch_texel_3d_argb4444, /* FetchTexel3D */ fetch_texel_1d_f_argb4444, /* FetchTexel1Df */ fetch_texel_2d_f_argb4444, /* FetchTexel2Df */ fetch_texel_3d_f_argb4444, /* 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 */ 2, /* TexelBytes */ _mesa_texstore_argb4444, /* StoreTexImageFunc */ fetch_texel_1d_argb4444_rev, /* FetchTexel1D */ fetch_texel_2d_argb4444_rev, /* FetchTexel2D */ fetch_texel_3d_argb4444_rev, /* FetchTexel3D */ fetch_texel_1d_f_argb4444_rev, /* FetchTexel1Df */ fetch_texel_2d_f_argb4444_rev, /* FetchTexel2Df */ fetch_texel_3d_f_argb4444_rev, /* 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 */ 2, /* TexelBytes */ _mesa_texstore_argb1555, /* StoreTexImageFunc */ fetch_texel_1d_argb1555, /* FetchTexel1D */ fetch_texel_2d_argb1555, /* FetchTexel2D */ fetch_texel_3d_argb1555, /* FetchTexel3D */ fetch_texel_1d_f_argb1555, /* FetchTexel1Df */ fetch_texel_2d_f_argb1555, /* FetchTexel2Df */ fetch_texel_3d_f_argb1555, /* 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 */ 2, /* TexelBytes */ _mesa_texstore_argb1555, /* StoreTexImageFunc */ fetch_texel_1d_argb1555_rev, /* FetchTexel1D */ fetch_texel_2d_argb1555_rev, /* FetchTexel2D */ fetch_texel_3d_argb1555_rev, /* FetchTexel3D */ fetch_texel_1d_f_argb1555_rev, /* FetchTexel1Df */ fetch_texel_2d_f_argb1555_rev, /* FetchTexel2Df */ fetch_texel_3d_f_argb1555_rev, /* 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 */ 2, /* TexelBytes */ _mesa_texstore_al88, /* StoreTexImageFunc */ fetch_texel_1d_al88, /* FetchTexel1D */ fetch_texel_2d_al88, /* FetchTexel2D */ fetch_texel_3d_al88, /* FetchTexel3D */ fetch_texel_1d_f_al88, /* FetchTexel1Df */ fetch_texel_2d_f_al88, /* FetchTexel2Df */ fetch_texel_3d_f_al88, /* 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 */ 2, /* TexelBytes */ _mesa_texstore_al88, /* StoreTexImageFunc */ fetch_texel_1d_al88_rev, /* FetchTexel1D */ fetch_texel_2d_al88_rev, /* FetchTexel2D */ fetch_texel_3d_al88_rev, /* FetchTexel3D */ fetch_texel_1d_f_al88_rev, /* FetchTexel1Df */ fetch_texel_2d_f_al88_rev, /* FetchTexel2Df */ fetch_texel_3d_f_al88_rev, /* 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 */ 1, /* TexelBytes */ _mesa_texstore_rgb332, /* StoreTexImageFunc */ fetch_texel_1d_rgb332, /* FetchTexel1D */ fetch_texel_2d_rgb332, /* FetchTexel2D */ fetch_texel_3d_rgb332, /* FetchTexel3D */ fetch_texel_1d_f_rgb332, /* FetchTexel1Df */ fetch_texel_2d_f_rgb332, /* FetchTexel2Df */ fetch_texel_3d_f_rgb332, /* 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 */ 1, /* TexelBytes */ _mesa_texstore_a8, /* StoreTexImageFunc */ fetch_texel_1d_a8, /* FetchTexel1D */ fetch_texel_2d_a8, /* FetchTexel2D */ fetch_texel_3d_a8, /* FetchTexel3D */ fetch_texel_1d_f_a8, /* FetchTexel1Df */ fetch_texel_2d_f_a8, /* FetchTexel2Df */ fetch_texel_3d_f_a8, /* 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 */ 1, /* TexelBytes */ _mesa_texstore_a8,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_l8, /* FetchTexel1D */ fetch_texel_2d_l8, /* FetchTexel2D */ fetch_texel_3d_l8, /* FetchTexel3D */ fetch_texel_1d_f_l8, /* FetchTexel1Df */ fetch_texel_2d_f_l8, /* FetchTexel2Df */ fetch_texel_3d_f_l8, /* 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 */ 1, /* TexelBytes */ _mesa_texstore_a8,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_i8, /* FetchTexel1D */ fetch_texel_2d_i8, /* FetchTexel2D */ fetch_texel_3d_i8, /* FetchTexel3D */ fetch_texel_1d_f_i8, /* FetchTexel1Df */ fetch_texel_2d_f_i8, /* FetchTexel2Df */ fetch_texel_3d_f_i8, /* 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 */ 1, /* TexelBytes */ _mesa_texstore_ci8, /* StoreTexImageFunc */ fetch_texel_1d_ci8, /* FetchTexel1D */ fetch_texel_2d_ci8, /* FetchTexel2D */ fetch_texel_3d_ci8, /* FetchTexel3D */ fetch_texel_1d_f_ci8, /* FetchTexel1Df */ fetch_texel_2d_f_ci8, /* FetchTexel2Df */ fetch_texel_3d_f_ci8, /* 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 */ 2, /* TexelBytes */ _mesa_texstore_ycbcr, /* StoreTexImageFunc */ fetch_texel_1d_ycbcr, /* FetchTexel1D */ fetch_texel_2d_ycbcr, /* FetchTexel2D */ fetch_texel_3d_ycbcr, /* FetchTexel3D */ fetch_texel_1d_f_ycbcr, /* FetchTexel1Df */ fetch_texel_2d_f_ycbcr, /* FetchTexel2Df */ fetch_texel_3d_f_ycbcr, /* 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 */ 2, /* TexelBytes */ _mesa_texstore_ycbcr, /* StoreTexImageFunc */ fetch_texel_1d_ycbcr_rev, /* FetchTexel1D */ fetch_texel_2d_ycbcr_rev, /* FetchTexel2D */ fetch_texel_3d_ycbcr_rev, /* FetchTexel3D */ fetch_texel_1d_f_ycbcr_rev, /* FetchTexel1Df */ fetch_texel_2d_f_ycbcr_rev, /* FetchTexel2Df */ fetch_texel_3d_f_ycbcr_rev, /* FetchTexel3Df */ store_texel_ycbcr_rev /* 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, /* 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) { switch (internalFormat) { case GL_DEPTH_COMPONENT: case GL_DEPTH_COMPONENT24_SGIX: case GL_DEPTH_COMPONENT32_SGIX: return &_mesa_texformat_depth_component_float32; case GL_DEPTH_COMPONENT16_SGIX: return &_mesa_texformat_depth_component16; 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 */ } } _mesa_problem(ctx, "unexpected format in _mesa_choose_tex_format()"); return NULL; }