/* * Mesa 3-D graphics library * * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. * Copyright (c) 2008-2009 VMware, Inc. * * 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 * THE AUTHORS OR COPYRIGHT HOLDERS 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 texfetch_tmp.h * Texel fetch functions template. * * This template file is used by texfetch.c to generate texel fetch functions * for 1-D, 2-D and 3-D texture images. * * It should be expanded by defining \p DIM as the number texture dimensions * (1, 2 or 3). According to the value of \p DIM a series of macros is defined * for the texel lookup in the gl_texture_image::Data. * * \author Gareth Hughes * \author Brian Paul */ #if DIM == 1 #define TEXEL_ADDR( type, image, i, j, k, size ) \ ((void) (j), (void) (k), ((type *)(image)->ImageSlices[0] + (i) * (size))) #define FETCH(x) fetch_texel_1d_##x #elif DIM == 2 #define TEXEL_ADDR( type, image, i, j, k, size ) \ ((void) (k), \ ((type *)((GLubyte *) (image)->ImageSlices[0] + (image)->RowStride * (j)) + \ (i) * (size))) #define FETCH(x) fetch_texel_2d_##x #elif DIM == 3 #define TEXEL_ADDR( type, image, i, j, k, size ) \ ((type *)((GLubyte *) (image)->ImageSlices[k] + \ (image)->RowStride * (j)) + (i) * (size)) #define FETCH(x) fetch_texel_3d_##x #else #error illegal number of texture dimensions #endif /* MESA_FORMAT_Z32 ***********************************************************/ /* Fetch depth texel from 1D, 2D or 3D 32-bit depth texture, * returning 1 GLfloat. * Note: no GLchan version of this function. */ static void FETCH(f_z32)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[0] = src[0] * (1.0F / 0xffffffff); } /* MESA_FORMAT_Z16 ***********************************************************/ /* Fetch depth texel from 1D, 2D or 3D 16-bit depth texture, * returning 1 GLfloat. * Note: no GLchan version of this function. */ static void FETCH(f_z16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); texel[0] = src[0] * (1.0F / 65535.0F); } /* MESA_FORMAT_RGBA_F32 ******************************************************/ /* Fetch texel from 1D, 2D or 3D RGBA_FLOAT32 texture, returning 4 GLfloats. */ static void FETCH(f_rgba_f32)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 4); texel[RCOMP] = src[0]; texel[GCOMP] = src[1]; texel[BCOMP] = src[2]; texel[ACOMP] = src[3]; } /* MESA_FORMAT_RGBA_F16 ******************************************************/ /* Fetch texel from 1D, 2D or 3D RGBA_FLOAT16 texture, * returning 4 GLfloats. */ static void FETCH(f_rgba_f16)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 4); texel[RCOMP] = _mesa_half_to_float(src[0]); texel[GCOMP] = _mesa_half_to_float(src[1]); texel[BCOMP] = _mesa_half_to_float(src[2]); texel[ACOMP] = _mesa_half_to_float(src[3]); } /* MESA_FORMAT_RGB_F32 *******************************************************/ /* Fetch texel from 1D, 2D or 3D RGB_FLOAT32 texture, * returning 4 GLfloats. */ static void FETCH(f_rgb_f32)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 3); texel[RCOMP] = src[0]; texel[GCOMP] = src[1]; texel[BCOMP] = src[2]; texel[ACOMP] = 1.0F; } /* MESA_FORMAT_RGB_F16 *******************************************************/ /* Fetch texel from 1D, 2D or 3D RGB_FLOAT16 texture, * returning 4 GLfloats. */ static void FETCH(f_rgb_f16)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 3); texel[RCOMP] = _mesa_half_to_float(src[0]); texel[GCOMP] = _mesa_half_to_float(src[1]); texel[BCOMP] = _mesa_half_to_float(src[2]); texel[ACOMP] = 1.0F; } /* MESA_FORMAT_ALPHA_F32 *****************************************************/ /* Fetch texel from 1D, 2D or 3D ALPHA_FLOAT32 texture, * returning 4 GLfloats. */ static void FETCH(f_alpha_f32)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = 0.0F; texel[ACOMP] = src[0]; } /* MESA_FORMAT_ALPHA_F32 *****************************************************/ /* Fetch texel from 1D, 2D or 3D ALPHA_FLOAT16 texture, * returning 4 GLfloats. */ static void FETCH(f_alpha_f16)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = 0.0F; texel[ACOMP] = _mesa_half_to_float(src[0]); } /* MESA_FORMAT_LUMINANCE_F32 *************************************************/ /* Fetch texel from 1D, 2D or 3D LUMINANCE_FLOAT32 texture, * returning 4 GLfloats. */ static void FETCH(f_luminance_f32)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = src[0]; texel[ACOMP] = 1.0F; } /* MESA_FORMAT_LUMINANCE_F16 *************************************************/ /* Fetch texel from 1D, 2D or 3D LUMINANCE_FLOAT16 texture, * returning 4 GLfloats. */ static void FETCH(f_luminance_f16)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = _mesa_half_to_float(src[0]); texel[ACOMP] = 1.0F; } /* MESA_FORMAT_LUMINANCE_ALPHA_F32 *******************************************/ /* Fetch texel from 1D, 2D or 3D LUMINANCE_ALPHA_FLOAT32 texture, * returning 4 GLfloats. */ static void FETCH(f_luminance_alpha_f32)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = src[0]; texel[ACOMP] = src[1]; } /* MESA_FORMAT_LUMINANCE_ALPHA_F16 *******************************************/ /* Fetch texel from 1D, 2D or 3D LUMINANCE_ALPHA_FLOAT16 texture, * returning 4 GLfloats. */ static void FETCH(f_luminance_alpha_f16)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 2); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = _mesa_half_to_float(src[0]); texel[ACOMP] = _mesa_half_to_float(src[1]); } /* MESA_FORMAT_INTENSITY_F32 *************************************************/ /* Fetch texel from 1D, 2D or 3D INTENSITY_FLOAT32 texture, * returning 4 GLfloats. */ static void FETCH(f_intensity_f32)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = texel[ACOMP] = src[0]; } /* MESA_FORMAT_INTENSITY_F16 *************************************************/ /* Fetch texel from 1D, 2D or 3D INTENSITY_FLOAT16 texture, * returning 4 GLfloats. */ static void FETCH(f_intensity_f16)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = texel[ACOMP] = _mesa_half_to_float(src[0]); } /* MESA_FORMAT_R_FLOAT32 *****************************************************/ /* Fetch texel from 1D, 2D or 3D R_FLOAT32 texture, * returning 4 GLfloats. */ static void FETCH(f_r_f32)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 1); texel[RCOMP] = src[0]; texel[GCOMP] = 0.0F; texel[BCOMP] = 0.0F; texel[ACOMP] = 1.0F; } /* MESA_FORMAT_R_FLOAT16 *****************************************************/ /* Fetch texel from 1D, 2D or 3D R_FLOAT16 texture, * returning 4 GLfloats. */ static void FETCH(f_r_f16)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 1); texel[RCOMP] = _mesa_half_to_float(src[0]); texel[GCOMP] = 0.0F; texel[BCOMP] = 0.0F; texel[ACOMP] = 1.0F; } /* MESA_FORMAT_RG_FLOAT32 ****************************************************/ /* Fetch texel from 1D, 2D or 3D RG_FLOAT32 texture, * returning 4 GLfloats. */ static void FETCH(f_rg_f32)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2); texel[RCOMP] = src[0]; texel[GCOMP] = src[1]; texel[BCOMP] = 0.0F; texel[ACOMP] = 1.0F; } /* MESA_FORMAT_RG_FLOAT16 ****************************************************/ /* Fetch texel from 1D, 2D or 3D RG_FLOAT16 texture, * returning 4 GLfloats. */ static void FETCH(f_rg_f16)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLhalfARB *src = TEXEL_ADDR(GLhalfARB, texImage, i, j, k, 2); texel[RCOMP] = _mesa_half_to_float(src[0]); texel[GCOMP] = _mesa_half_to_float(src[1]); texel[BCOMP] = 0.0F; texel[ACOMP] = 1.0F; } /* * Begin Hardware formats */ /* MESA_FORMAT_RGBA8888 ******************************************************/ /* Fetch texel from 1D, 2D or 3D rgba8888 texture, return 4 GLfloats */ static void FETCH(f_rgba8888)( const struct swrast_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_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 ); } /* MESA_FORMAT_RGBA888_REV ***************************************************/ /* Fetch texel from 1D, 2D or 3D abgr8888 texture, return 4 GLchans */ static void FETCH(f_rgba8888_rev)( const struct swrast_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_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) ); } /* MESA_FORMAT_ARGB8888 ******************************************************/ /* Fetch texel from 1D, 2D or 3D argb8888 texture, return 4 GLchans */ static void FETCH(f_argb8888)( const struct swrast_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_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) ); } /* MESA_FORMAT_ARGB8888_REV **************************************************/ /* Fetch texel from 1D, 2D or 3D argb8888_rev texture, return 4 GLfloats */ static void FETCH(f_argb8888_rev)( const struct swrast_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_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 ); } /* MESA_FORMAT_RGBX8888 ******************************************************/ /* Fetch texel from 1D, 2D or 3D rgbx8888 texture, return 4 GLfloats */ static void FETCH(f_rgbx8888)( const struct swrast_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_FLOAT( (s >> 24) ); texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); texel[ACOMP] = 1.0f; } /* MESA_FORMAT_RGBX888_REV ***************************************************/ /* Fetch texel from 1D, 2D or 3D rgbx8888_rev texture, return 4 GLchans */ static void FETCH(f_rgbx8888_rev)( const struct swrast_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_FLOAT( (s ) & 0xff ); texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); texel[ACOMP] = 1.0f; } /* MESA_FORMAT_XRGB8888 ******************************************************/ /* Fetch texel from 1D, 2D or 3D xrgb8888 texture, return 4 GLchans */ static void FETCH(f_xrgb8888)( const struct swrast_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_FLOAT( (s >> 16) & 0xff ); texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 8) & 0xff ); texel[BCOMP] = UBYTE_TO_FLOAT( (s ) & 0xff ); texel[ACOMP] = 1.0f; } /* MESA_FORMAT_XRGB8888_REV **************************************************/ /* Fetch texel from 1D, 2D or 3D xrgb8888_rev texture, return 4 GLfloats */ static void FETCH(f_xrgb8888_rev)( const struct swrast_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_FLOAT( (s >> 8) & 0xff ); texel[GCOMP] = UBYTE_TO_FLOAT( (s >> 16) & 0xff ); texel[BCOMP] = UBYTE_TO_FLOAT( (s >> 24) ); texel[ACOMP] = 1.0f; } /* MESA_FORMAT_RGB888 ********************************************************/ /* Fetch texel from 1D, 2D or 3D rgb888 texture, return 4 GLchans */ static void FETCH(f_rgb888)( const struct swrast_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_FLOAT( src[2] ); texel[GCOMP] = UBYTE_TO_FLOAT( src[1] ); texel[BCOMP] = UBYTE_TO_FLOAT( src[0] ); texel[ACOMP] = 1.0F; } /* MESA_FORMAT_BGR888 ********************************************************/ /* Fetch texel from 1D, 2D or 3D bgr888 texture, return 4 GLchans */ static void FETCH(f_bgr888)( const struct swrast_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_FLOAT( src[0] ); texel[GCOMP] = UBYTE_TO_FLOAT( src[1] ); texel[BCOMP] = UBYTE_TO_FLOAT( src[2] ); texel[ACOMP] = 1.0F; } /* use color expansion like (g << 2) | (g >> 4) (does somewhat random rounding) instead of slow (g << 2) * 255 / 252 (always rounds down) */ /* MESA_FORMAT_RGB565 ********************************************************/ /* Fetch texel from 1D, 2D or 3D rgb565 texture, return 4 GLchans */ static void FETCH(f_rgb565)( const struct swrast_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] = ((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; } /* MESA_FORMAT_RGB565_REV ****************************************************/ /* Fetch texel from 1D, 2D or 3D rgb565_rev texture, return 4 GLchans */ static void FETCH(f_rgb565_rev)( const struct swrast_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_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; } /* MESA_FORMAT_ARGB4444 ******************************************************/ /* Fetch texel from 1D, 2D or 3D argb444 texture, return 4 GLchans */ static void FETCH(f_argb4444)( const struct swrast_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] = ((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); } /* MESA_FORMAT_ARGB4444_REV **************************************************/ /* Fetch texel from 1D, 2D or 3D argb4444_rev texture, return 4 GLchans */ static void FETCH(f_argb4444_rev)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); 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); } /* MESA_FORMAT_RGBA5551 ******************************************************/ /* Fetch texel from 1D, 2D or 3D argb1555 texture, return 4 GLchans */ static void FETCH(f_rgba5551)( const struct swrast_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] = ((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; } /* MESA_FORMAT_ARGB1555 ******************************************************/ /* Fetch texel from 1D, 2D or 3D argb1555 texture, return 4 GLchans */ static void FETCH(f_argb1555)( const struct swrast_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] = ((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; } /* MESA_FORMAT_ARGB1555_REV **************************************************/ /* Fetch texel from 1D, 2D or 3D argb1555_rev texture, return 4 GLchans */ static void FETCH(f_argb1555_rev)( const struct swrast_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_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 ); } /* MESA_FORMAT_ARGB2101010 ***************************************************/ /* Fetch texel from 1D, 2D or 3D argb2101010 texture, return 4 GLchans */ static void FETCH(f_argb2101010)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); const GLuint s = *src; texel[RCOMP] = ((s >> 20) & 0x3ff) * (1.0F / 1023.0F); texel[GCOMP] = ((s >> 10) & 0x3ff) * (1.0F / 1023.0F); texel[BCOMP] = ((s >> 0) & 0x3ff) * (1.0F / 1023.0F); texel[ACOMP] = ((s >> 30) & 0x03) * (1.0F / 3.0F); } /* MESA_FORMAT_GR88 **********************************************************/ /* Fetch texel from 1D, 2D or 3D rg88 texture, return 4 GLchans */ static void FETCH(f_gr88)( const struct swrast_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_FLOAT( s & 0xff ); texel[GCOMP] = UBYTE_TO_FLOAT( s >> 8 ); texel[BCOMP] = 0.0; texel[ACOMP] = 1.0; } /* MESA_FORMAT_RG88 ******************************************************/ /* Fetch texel from 1D, 2D or 3D rg88_rev texture, return 4 GLchans */ static void FETCH(f_rg88)( const struct swrast_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_FLOAT( s >> 8 ); texel[GCOMP] = UBYTE_TO_FLOAT( s & 0xff ); texel[BCOMP] = 0.0; texel[ACOMP] = 1.0; } /* MESA_FORMAT_AL44 **********************************************************/ /* Fetch texel from 1D, 2D or 3D al44 texture, return 4 GLchans */ static void FETCH(f_al44)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLubyte s = *TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = (s & 0xf) * (1.0F / 15.0F); texel[ACOMP] = ((s >> 4) & 0xf) * (1.0F / 15.0F); } /* MESA_FORMAT_AL88 **********************************************************/ /* Fetch texel from 1D, 2D or 3D al88 texture, return 4 GLchans */ static void FETCH(f_al88)( const struct swrast_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_FLOAT( s & 0xff ); texel[ACOMP] = UBYTE_TO_FLOAT( s >> 8 ); } /* MESA_FORMAT_R8 ************************************************************/ /* Fetch texel from 1D, 2D or 3D rg88 texture, return 4 GLchans */ static void FETCH(f_r8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLubyte s = *TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); texel[RCOMP] = UBYTE_TO_FLOAT(s); texel[GCOMP] = 0.0; texel[BCOMP] = 0.0; texel[ACOMP] = 1.0; } /* MESA_FORMAT_R16 ***********************************************************/ /* Fetch texel from 1D, 2D or 3D r16 texture, return 4 GLchans */ static void FETCH(f_r16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1); texel[RCOMP] = USHORT_TO_FLOAT(s); texel[GCOMP] = 0.0; texel[BCOMP] = 0.0; texel[ACOMP] = 1.0; } /* MESA_FORMAT_AL88_REV ******************************************************/ /* Fetch texel from 1D, 2D or 3D al88_rev texture, return 4 GLchans */ static void FETCH(f_al88_rev)( const struct swrast_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_FLOAT( s >> 8 ); texel[ACOMP] = UBYTE_TO_FLOAT( s & 0xff ); } /* MESA_FORMAT_GR1616 ********************************************************/ /* Fetch texel from 1D, 2D or 3D rg1616 texture, return 4 GLchans */ static void FETCH(f_rg1616)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = USHORT_TO_FLOAT( s & 0xffff ); texel[GCOMP] = USHORT_TO_FLOAT( s >> 16 ); texel[BCOMP] = 0.0; texel[ACOMP] = 1.0; } /* MESA_FORMAT_RG1616 ****************************************************/ /* Fetch texel from 1D, 2D or 3D rg1616_rev texture, return 4 GLchans */ static void FETCH(f_rg1616_rev)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = USHORT_TO_FLOAT( s >> 16 ); texel[GCOMP] = USHORT_TO_FLOAT( s & 0xffff ); texel[BCOMP] = 0.0; texel[ACOMP] = 1.0; } /* MESA_FORMAT_AL1616 ********************************************************/ /* Fetch texel from 1D, 2D or 3D al1616 texture, return 4 GLchans */ static void FETCH(f_al1616)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = USHORT_TO_FLOAT( s & 0xffff ); texel[ACOMP] = USHORT_TO_FLOAT( s >> 16 ); } /* MESA_FORMAT_AL1616_REV ****************************************************/ /* Fetch texel from 1D, 2D or 3D al1616_rev texture, return 4 GLchans */ static void FETCH(f_al1616_rev)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = USHORT_TO_FLOAT( s >> 16 ); texel[ACOMP] = USHORT_TO_FLOAT( s & 0xffff ); } /* MESA_FORMAT_RGB332 ********************************************************/ /* Fetch texel from 1D, 2D or 3D rgb332 texture, return 4 GLchans */ static void FETCH(f_rgb332)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 1); const GLubyte s = *src; 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; } /* MESA_FORMAT_A8 ************************************************************/ /* Fetch texel from 1D, 2D or 3D a8 texture, return 4 GLchans */ static void FETCH(f_a8)( const struct swrast_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] = 0.0F; texel[ACOMP] = UBYTE_TO_FLOAT( src[0] ); } /* MESA_FORMAT_A16 ************************************************************/ /* Fetch texel from 1D, 2D or 3D a8 texture, return 4 GLchans */ static void FETCH(f_a16)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = 0.0F; texel[ACOMP] = USHORT_TO_FLOAT( src[0] ); } /* MESA_FORMAT_L8 ************************************************************/ /* Fetch texel from 1D, 2D or 3D l8 texture, return 4 GLchans */ static void FETCH(f_l8)( const struct swrast_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_FLOAT( src[0] ); texel[ACOMP] = 1.0F; } /* MESA_FORMAT_L16 ***********************************************************/ /* Fetch texel from 1D, 2D or 3D l16 texture, return 4 GLchans */ static void FETCH(f_l16)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = USHORT_TO_FLOAT( src[0] ); texel[ACOMP] = 1.0F; } /* MESA_FORMAT_I8 ************************************************************/ /* Fetch texel from 1D, 2D or 3D i8 texture, return 4 GLchans */ static void FETCH(f_i8)( const struct swrast_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_FLOAT( src[0] ); } /* MESA_FORMAT_I16 ***********************************************************/ /* Fetch texel from 1D, 2D or 3D i16 texture, return 4 GLchans */ static void FETCH(f_i16)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = texel[ACOMP] = USHORT_TO_FLOAT( src[0] ); } /* 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 swrast_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[2]); texel[GCOMP] = nonlinear_to_linear(src[1]); texel[BCOMP] = nonlinear_to_linear(src[0]); texel[ACOMP] = 1.0F; } /* Fetch texel from 1D, 2D or 3D srgba8 texture, return 4 GLfloats */ static void FETCH(srgba8)(const struct swrast_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 >> 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! */ } /* Fetch texel from 1D, 2D or 3D sargb8 texture, return 4 GLfloats */ static void FETCH(sargb8)(const struct swrast_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! */ } /* Fetch texel from 1D, 2D or 3D sl8 texture, return 4 GLfloats */ static void FETCH(sl8)(const struct swrast_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] = nonlinear_to_linear(src[0]); texel[ACOMP] = 1.0F; } /* Fetch texel from 1D, 2D or 3D sla8 texture, return 4 GLfloats */ static void FETCH(sla8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 2); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = nonlinear_to_linear(src[0]); texel[ACOMP] = UBYTE_TO_FLOAT(src[1]); /* linear */ } /* MESA_FORMAT_RGBA_INT8 **************************************************/ static void FETCH(rgba_int8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLbyte *src = TEXEL_ADDR(GLbyte, texImage, i, j, k, 4); texel[RCOMP] = (GLfloat) src[0]; texel[GCOMP] = (GLfloat) src[1]; texel[BCOMP] = (GLfloat) src[2]; texel[ACOMP] = (GLfloat) src[3]; } /* MESA_FORMAT_RGBA_INT16 **************************************************/ static void FETCH(rgba_int16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLshort *src = TEXEL_ADDR(GLshort, texImage, i, j, k, 4); texel[RCOMP] = (GLfloat) src[0]; texel[GCOMP] = (GLfloat) src[1]; texel[BCOMP] = (GLfloat) src[2]; texel[ACOMP] = (GLfloat) src[3]; } /* MESA_FORMAT_RGBA_INT32 **************************************************/ static void FETCH(rgba_int32)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLint *src = TEXEL_ADDR(GLint, texImage, i, j, k, 4); texel[RCOMP] = (GLfloat) src[0]; texel[GCOMP] = (GLfloat) src[1]; texel[BCOMP] = (GLfloat) src[2]; texel[ACOMP] = (GLfloat) src[3]; } /* MESA_FORMAT_RGBA_UINT8 **************************************************/ static void FETCH(rgba_uint8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 4); texel[RCOMP] = (GLfloat) src[0]; texel[GCOMP] = (GLfloat) src[1]; texel[BCOMP] = (GLfloat) src[2]; texel[ACOMP] = (GLfloat) src[3]; } /* MESA_FORMAT_RGBA_UINT16 **************************************************/ static void FETCH(rgba_uint16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLushort *src = TEXEL_ADDR(GLushort, texImage, i, j, k, 4); texel[RCOMP] = (GLfloat) src[0]; texel[GCOMP] = (GLfloat) src[1]; texel[BCOMP] = (GLfloat) src[2]; texel[ACOMP] = (GLfloat) src[3]; } /* MESA_FORMAT_RGBA_UINT32 **************************************************/ static void FETCH(rgba_uint32)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 4); texel[RCOMP] = (GLfloat) src[0]; texel[GCOMP] = (GLfloat) src[1]; texel[BCOMP] = (GLfloat) src[2]; texel[ACOMP] = (GLfloat) src[3]; } /* 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 swrast_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_R8 ***********************************************/ static void FETCH(signed_r8)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); texel[RCOMP] = BYTE_TO_FLOAT_TEX( s ); texel[GCOMP] = 0.0F; texel[BCOMP] = 0.0F; texel[ACOMP] = 1.0F; } /* MESA_FORMAT_SIGNED_A8 ***********************************************/ static void FETCH(signed_a8)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); texel[RCOMP] = 0.0F; texel[GCOMP] = 0.0F; texel[BCOMP] = 0.0F; texel[ACOMP] = BYTE_TO_FLOAT_TEX( s ); } /* MESA_FORMAT_SIGNED_L8 ***********************************************/ static void FETCH(signed_l8)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = BYTE_TO_FLOAT_TEX( s ); texel[ACOMP] = 1.0F; } /* MESA_FORMAT_SIGNED_I8 ***********************************************/ static void FETCH(signed_i8)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLbyte s = *TEXEL_ADDR(GLbyte, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = texel[ACOMP] = BYTE_TO_FLOAT_TEX( s ); } /* MESA_FORMAT_SIGNED_RG88_REV ***********************************************/ static void FETCH(signed_rg88_rev)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLushort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); texel[RCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s & 0xff) ); texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); texel[BCOMP] = 0.0F; texel[ACOMP] = 1.0F; } /* MESA_FORMAT_SIGNED_AL88 ***********************************************/ static void FETCH(signed_al88)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLushort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s & 0xff) ); texel[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); } /* MESA_FORMAT_SIGNED_RGBX8888 ***********************************************/ static void FETCH(signed_rgbx8888)( const struct swrast_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( (GLbyte) (s >> 24) ); texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 16) ); texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); texel[ACOMP] = 1.0f; } /* MESA_FORMAT_SIGNED_RGBA8888 ***********************************************/ static void FETCH(signed_rgba8888)( const struct swrast_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( (GLbyte) (s >> 24) ); texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 16) ); texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); texel[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s ) ); } static void FETCH(signed_rgba8888_rev)( const struct swrast_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( (GLbyte) (s ) ); texel[GCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 8) ); texel[BCOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 16) ); texel[ACOMP] = BYTE_TO_FLOAT_TEX( (GLbyte) (s >> 24) ); } /* MESA_FORMAT_SIGNED_R16 ***********************************************/ static void FETCH(signed_r16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); texel[RCOMP] = SHORT_TO_FLOAT_TEX( s ); texel[GCOMP] = 0.0F; texel[BCOMP] = 0.0F; texel[ACOMP] = 1.0F; } /* MESA_FORMAT_SIGNED_A16 ***********************************************/ static void FETCH(signed_a16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); texel[RCOMP] = 0.0F; texel[GCOMP] = 0.0F; texel[BCOMP] = 0.0F; texel[ACOMP] = SHORT_TO_FLOAT_TEX( s ); } /* MESA_FORMAT_SIGNED_L16 ***********************************************/ static void FETCH(signed_l16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = SHORT_TO_FLOAT_TEX( s ); texel[ACOMP] = 1.0F; } /* MESA_FORMAT_SIGNED_I16 ***********************************************/ static void FETCH(signed_i16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLshort s = *TEXEL_ADDR(GLshort, texImage, i, j, k, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = texel[ACOMP] = SHORT_TO_FLOAT_TEX( s ); } /* MESA_FORMAT_SIGNED_RG1616 ***********************************************/ static void FETCH(signed_rg1616)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 2); texel[RCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); texel[GCOMP] = SHORT_TO_FLOAT_TEX( s[1] ); texel[BCOMP] = 0.0F; texel[ACOMP] = 1.0F; } /* MESA_FORMAT_SIGNED_AL1616 ***********************************************/ static void FETCH(signed_al1616)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 2); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); texel[ACOMP] = SHORT_TO_FLOAT_TEX( s[1] ); } /* MESA_FORMAT_SIGNED_RGB_16 ***********************************************/ static void FETCH(signed_rgb_16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 3); texel[RCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); texel[GCOMP] = SHORT_TO_FLOAT_TEX( s[1] ); texel[BCOMP] = SHORT_TO_FLOAT_TEX( s[2] ); texel[ACOMP] = 1.0F; } /* MESA_FORMAT_SIGNED_RGBA_16 ***********************************************/ static void FETCH(signed_rgba_16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLshort *s = TEXEL_ADDR(GLshort, texImage, i, j, k, 4); texel[RCOMP] = SHORT_TO_FLOAT_TEX( s[0] ); texel[GCOMP] = SHORT_TO_FLOAT_TEX( s[1] ); texel[BCOMP] = SHORT_TO_FLOAT_TEX( s[2] ); texel[ACOMP] = SHORT_TO_FLOAT_TEX( s[3] ); } /* MESA_FORMAT_RGBA_16 ***********************************************/ static void FETCH(rgba_16)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLushort *s = TEXEL_ADDR(GLushort, texImage, i, j, k, 4); texel[RCOMP] = USHORT_TO_FLOAT( s[0] ); texel[GCOMP] = USHORT_TO_FLOAT( s[1] ); texel[BCOMP] = USHORT_TO_FLOAT( s[2] ); texel[ACOMP] = USHORT_TO_FLOAT( s[3] ); } /* MESA_FORMAT_YCBCR *********************************************************/ /* 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 swrast_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 */ const GLubyte y0 = (*src0 >> 8) & 0xff; /* luminance */ const GLubyte cb = *src0 & 0xff; /* chroma U */ const GLubyte y1 = (*src1 >> 8) & 0xff; /* luminance */ const GLubyte cr = *src1 & 0xff; /* chroma V */ 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; } /* MESA_FORMAT_YCBCR_REV *****************************************************/ /* 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 swrast_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 */ const GLubyte y0 = *src0 & 0xff; /* luminance */ const GLubyte cr = (*src0 >> 8) & 0xff; /* chroma V */ const GLubyte y1 = *src1 & 0xff; /* luminance */ const GLubyte cb = (*src1 >> 8) & 0xff; /* chroma U */ 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; } /* MESA_TEXFORMAT_Z24_S8 ***************************************************/ static void FETCH(f_z24_s8)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { /* only return Z, not stencil data */ const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); const GLdouble scale = 1.0 / (GLdouble) 0xffffff; texel[0] = ((*src) >> 8) * scale; ASSERT(texImage->Base.TexFormat == MESA_FORMAT_Z24_S8 || texImage->Base.TexFormat == MESA_FORMAT_Z24_X8); ASSERT(texel[0] >= 0.0F); ASSERT(texel[0] <= 1.0F); } /* MESA_TEXFORMAT_S8_Z24 ***************************************************/ static void FETCH(f_s8_z24)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { /* only return Z, not stencil data */ const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); const GLdouble scale = 1.0 / (GLdouble) 0xffffff; texel[0] = ((*src) & 0x00ffffff) * scale; ASSERT(texImage->Base.TexFormat == MESA_FORMAT_S8_Z24 || texImage->Base.TexFormat == MESA_FORMAT_X8_Z24); ASSERT(texel[0] >= 0.0F); ASSERT(texel[0] <= 1.0F); } /* MESA_FORMAT_RGB9_E5 ******************************************************/ static void FETCH(rgb9_e5)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); rgb9e5_to_float3(*src, texel); texel[ACOMP] = 1.0F; } /* MESA_FORMAT_R11_G11_B10_FLOAT *********************************************/ static void FETCH(r11_g11_b10f)( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); r11g11b10f_to_float3(*src, texel); texel[ACOMP] = 1.0F; } /* MESA_FORMAT_Z32_FLOAT_X24S8 ***********************************************/ static void FETCH(z32f_x24s8)(const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel) { const GLfloat *src = TEXEL_ADDR(GLfloat, texImage, i, j, k, 2); texel[RCOMP] = src[0]; texel[GCOMP] = 0.0F; texel[BCOMP] = 0.0F; texel[ACOMP] = 1.0F; } #undef TEXEL_ADDR #undef DIM #undef FETCH