| /* |
| * Mesa 3-D graphics library |
| * Version: 7.7 |
| * |
| * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. |
| * Copyright (c) 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 |
| * 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 s_texfetch.c |
| * |
| * Texel fetch/store functions |
| * |
| * \author Gareth Hughes |
| */ |
| |
| |
| #include "main/colormac.h" |
| #include "main/macros.h" |
| #include "main/texcompress.h" |
| #include "main/texcompress_fxt1.h" |
| #include "main/texcompress_s3tc.h" |
| #include "main/texcompress_rgtc.h" |
| #include "main/texcompress_etc.h" |
| #include "main/teximage.h" |
| #include "main/samplerobj.h" |
| #include "s_context.h" |
| #include "s_texfetch.h" |
| #include "../../gallium/auxiliary/util/u_format_rgb9e5.h" |
| #include "../../gallium/auxiliary/util/u_format_r11g11b10f.h" |
| |
| |
| /** |
| * 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 / 12.92f; |
| } |
| else { |
| table[i] = (GLfloat) pow((cs + 0.055) / 1.055, 2.4); |
| } |
| } |
| tableReady = GL_TRUE; |
| } |
| return table[cs8]; |
| } |
| |
| |
| |
| /* Texel fetch routines for all supported formats |
| */ |
| #define DIM 1 |
| #include "s_texfetch_tmp.h" |
| |
| #define DIM 2 |
| #include "s_texfetch_tmp.h" |
| |
| #define DIM 3 |
| #include "s_texfetch_tmp.h" |
| |
| /** |
| * Null texel fetch function. |
| * |
| * Have to have this so the FetchTexel function pointer is never NULL. |
| */ |
| static void fetch_null_texelf( const struct swrast_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!"); |
| } |
| |
| |
| /** |
| * Table to map MESA_FORMAT_ to texel fetch/store funcs. |
| * XXX this is somewhat temporary. |
| */ |
| static struct { |
| gl_format Name; |
| FetchTexelFunc Fetch1D; |
| FetchTexelFunc Fetch2D; |
| FetchTexelFunc Fetch3D; |
| } |
| texfetch_funcs[MESA_FORMAT_COUNT] = |
| { |
| { |
| MESA_FORMAT_NONE, |
| fetch_null_texelf, |
| fetch_null_texelf, |
| fetch_null_texelf |
| }, |
| |
| { |
| MESA_FORMAT_RGBA8888, |
| fetch_texel_1d_f_rgba8888, |
| fetch_texel_2d_f_rgba8888, |
| fetch_texel_3d_f_rgba8888 |
| }, |
| { |
| MESA_FORMAT_RGBA8888_REV, |
| fetch_texel_1d_f_rgba8888_rev, |
| fetch_texel_2d_f_rgba8888_rev, |
| fetch_texel_3d_f_rgba8888_rev |
| }, |
| { |
| MESA_FORMAT_ARGB8888, |
| fetch_texel_1d_f_argb8888, |
| fetch_texel_2d_f_argb8888, |
| fetch_texel_3d_f_argb8888 |
| }, |
| { |
| MESA_FORMAT_ARGB8888_REV, |
| fetch_texel_1d_f_argb8888_rev, |
| fetch_texel_2d_f_argb8888_rev, |
| fetch_texel_3d_f_argb8888_rev |
| }, |
| { |
| MESA_FORMAT_RGBX8888, |
| fetch_texel_1d_f_rgbx8888, |
| fetch_texel_2d_f_rgbx8888, |
| fetch_texel_3d_f_rgbx8888 |
| }, |
| { |
| MESA_FORMAT_RGBX8888_REV, |
| fetch_texel_1d_f_rgbx8888_rev, |
| fetch_texel_2d_f_rgbx8888_rev, |
| fetch_texel_3d_f_rgbx8888_rev |
| }, |
| { |
| MESA_FORMAT_XRGB8888, |
| fetch_texel_1d_f_xrgb8888, |
| fetch_texel_2d_f_xrgb8888, |
| fetch_texel_3d_f_xrgb8888 |
| }, |
| { |
| MESA_FORMAT_XRGB8888_REV, |
| fetch_texel_1d_f_xrgb8888_rev, |
| fetch_texel_2d_f_xrgb8888_rev, |
| fetch_texel_3d_f_xrgb8888_rev |
| }, |
| { |
| MESA_FORMAT_RGB888, |
| fetch_texel_1d_f_rgb888, |
| fetch_texel_2d_f_rgb888, |
| fetch_texel_3d_f_rgb888 |
| }, |
| { |
| MESA_FORMAT_BGR888, |
| fetch_texel_1d_f_bgr888, |
| fetch_texel_2d_f_bgr888, |
| fetch_texel_3d_f_bgr888 |
| }, |
| { |
| MESA_FORMAT_RGB565, |
| fetch_texel_1d_f_rgb565, |
| fetch_texel_2d_f_rgb565, |
| fetch_texel_3d_f_rgb565 |
| }, |
| { |
| MESA_FORMAT_RGB565_REV, |
| fetch_texel_1d_f_rgb565_rev, |
| fetch_texel_2d_f_rgb565_rev, |
| fetch_texel_3d_f_rgb565_rev |
| }, |
| { |
| MESA_FORMAT_ARGB4444, |
| fetch_texel_1d_f_argb4444, |
| fetch_texel_2d_f_argb4444, |
| fetch_texel_3d_f_argb4444 |
| }, |
| { |
| MESA_FORMAT_ARGB4444_REV, |
| fetch_texel_1d_f_argb4444_rev, |
| fetch_texel_2d_f_argb4444_rev, |
| fetch_texel_3d_f_argb4444_rev |
| }, |
| { |
| MESA_FORMAT_RGBA5551, |
| fetch_texel_1d_f_rgba5551, |
| fetch_texel_2d_f_rgba5551, |
| fetch_texel_3d_f_rgba5551 |
| }, |
| { |
| MESA_FORMAT_ARGB1555, |
| fetch_texel_1d_f_argb1555, |
| fetch_texel_2d_f_argb1555, |
| fetch_texel_3d_f_argb1555 |
| }, |
| { |
| MESA_FORMAT_ARGB1555_REV, |
| fetch_texel_1d_f_argb1555_rev, |
| fetch_texel_2d_f_argb1555_rev, |
| fetch_texel_3d_f_argb1555_rev |
| }, |
| { |
| MESA_FORMAT_AL44, |
| fetch_texel_1d_f_al44, |
| fetch_texel_2d_f_al44, |
| fetch_texel_3d_f_al44 |
| }, |
| { |
| MESA_FORMAT_AL88, |
| fetch_texel_1d_f_al88, |
| fetch_texel_2d_f_al88, |
| fetch_texel_3d_f_al88 |
| }, |
| { |
| MESA_FORMAT_AL88_REV, |
| fetch_texel_1d_f_al88_rev, |
| fetch_texel_2d_f_al88_rev, |
| fetch_texel_3d_f_al88_rev |
| }, |
| { |
| MESA_FORMAT_AL1616, |
| fetch_texel_1d_f_al1616, |
| fetch_texel_2d_f_al1616, |
| fetch_texel_3d_f_al1616 |
| }, |
| { |
| MESA_FORMAT_AL1616_REV, |
| fetch_texel_1d_f_al1616_rev, |
| fetch_texel_2d_f_al1616_rev, |
| fetch_texel_3d_f_al1616_rev |
| }, |
| { |
| MESA_FORMAT_RGB332, |
| fetch_texel_1d_f_rgb332, |
| fetch_texel_2d_f_rgb332, |
| fetch_texel_3d_f_rgb332 |
| }, |
| { |
| MESA_FORMAT_A8, |
| fetch_texel_1d_f_a8, |
| fetch_texel_2d_f_a8, |
| fetch_texel_3d_f_a8 |
| }, |
| { |
| MESA_FORMAT_A16, |
| fetch_texel_1d_f_a16, |
| fetch_texel_2d_f_a16, |
| fetch_texel_3d_f_a16 |
| }, |
| { |
| MESA_FORMAT_L8, |
| fetch_texel_1d_f_l8, |
| fetch_texel_2d_f_l8, |
| fetch_texel_3d_f_l8 |
| }, |
| { |
| MESA_FORMAT_L16, |
| fetch_texel_1d_f_l16, |
| fetch_texel_2d_f_l16, |
| fetch_texel_3d_f_l16 |
| }, |
| { |
| MESA_FORMAT_I8, |
| fetch_texel_1d_f_i8, |
| fetch_texel_2d_f_i8, |
| fetch_texel_3d_f_i8 |
| }, |
| { |
| MESA_FORMAT_I16, |
| fetch_texel_1d_f_i16, |
| fetch_texel_2d_f_i16, |
| fetch_texel_3d_f_i16 |
| }, |
| { |
| MESA_FORMAT_YCBCR, |
| fetch_texel_1d_f_ycbcr, |
| fetch_texel_2d_f_ycbcr, |
| fetch_texel_3d_f_ycbcr |
| }, |
| { |
| MESA_FORMAT_YCBCR_REV, |
| fetch_texel_1d_f_ycbcr_rev, |
| fetch_texel_2d_f_ycbcr_rev, |
| fetch_texel_3d_f_ycbcr_rev |
| }, |
| { |
| MESA_FORMAT_R8, |
| fetch_texel_1d_f_r8, |
| fetch_texel_2d_f_r8, |
| fetch_texel_3d_f_r8 |
| }, |
| { |
| MESA_FORMAT_GR88, |
| fetch_texel_1d_f_gr88, |
| fetch_texel_2d_f_gr88, |
| fetch_texel_3d_f_gr88 |
| }, |
| { |
| MESA_FORMAT_RG88, |
| fetch_texel_1d_f_rg88, |
| fetch_texel_2d_f_rg88, |
| fetch_texel_3d_f_rg88 |
| }, |
| { |
| MESA_FORMAT_R16, |
| fetch_texel_1d_f_r16, |
| fetch_texel_2d_f_r16, |
| fetch_texel_3d_f_r16 |
| }, |
| { |
| MESA_FORMAT_RG1616, |
| fetch_texel_1d_f_rg1616, |
| fetch_texel_2d_f_rg1616, |
| fetch_texel_3d_f_rg1616 |
| }, |
| { |
| MESA_FORMAT_RG1616_REV, |
| fetch_texel_1d_f_rg1616_rev, |
| fetch_texel_2d_f_rg1616_rev, |
| fetch_texel_3d_f_rg1616_rev |
| }, |
| { |
| MESA_FORMAT_ARGB2101010, |
| fetch_texel_1d_f_argb2101010, |
| fetch_texel_2d_f_argb2101010, |
| fetch_texel_3d_f_argb2101010 |
| }, |
| { |
| MESA_FORMAT_Z24_S8, |
| fetch_texel_1d_f_z24_s8, |
| fetch_texel_2d_f_z24_s8, |
| fetch_texel_3d_f_z24_s8 |
| }, |
| { |
| MESA_FORMAT_S8_Z24, |
| fetch_texel_1d_f_s8_z24, |
| fetch_texel_2d_f_s8_z24, |
| fetch_texel_3d_f_s8_z24 |
| }, |
| { |
| MESA_FORMAT_Z16, |
| fetch_texel_1d_f_z16, |
| fetch_texel_2d_f_z16, |
| fetch_texel_3d_f_z16 |
| }, |
| { |
| MESA_FORMAT_X8_Z24, |
| fetch_texel_1d_f_s8_z24, |
| fetch_texel_2d_f_s8_z24, |
| fetch_texel_3d_f_s8_z24 |
| }, |
| { |
| MESA_FORMAT_Z24_X8, |
| fetch_texel_1d_f_z24_s8, |
| fetch_texel_2d_f_z24_s8, |
| fetch_texel_3d_f_z24_s8 |
| }, |
| { |
| MESA_FORMAT_Z32, |
| fetch_texel_1d_f_z32, |
| fetch_texel_2d_f_z32, |
| fetch_texel_3d_f_z32 |
| }, |
| { |
| MESA_FORMAT_S8, |
| NULL, |
| NULL, |
| NULL |
| }, |
| { |
| MESA_FORMAT_SRGB8, |
| fetch_texel_1d_srgb8, |
| fetch_texel_2d_srgb8, |
| fetch_texel_3d_srgb8 |
| }, |
| { |
| MESA_FORMAT_SRGBA8, |
| fetch_texel_1d_srgba8, |
| fetch_texel_2d_srgba8, |
| fetch_texel_3d_srgba8 |
| }, |
| { |
| MESA_FORMAT_SARGB8, |
| fetch_texel_1d_sargb8, |
| fetch_texel_2d_sargb8, |
| fetch_texel_3d_sargb8 |
| }, |
| { |
| MESA_FORMAT_SL8, |
| fetch_texel_1d_sl8, |
| fetch_texel_2d_sl8, |
| fetch_texel_3d_sl8 |
| }, |
| { |
| MESA_FORMAT_SLA8, |
| fetch_texel_1d_sla8, |
| fetch_texel_2d_sla8, |
| fetch_texel_3d_sla8 |
| }, |
| { |
| MESA_FORMAT_SRGB_DXT1, |
| _mesa_fetch_texel_srgb_dxt1, |
| _mesa_fetch_texel_srgb_dxt1, |
| _mesa_fetch_texel_srgb_dxt1 |
| }, |
| { |
| MESA_FORMAT_SRGBA_DXT1, |
| _mesa_fetch_texel_srgba_dxt1, |
| _mesa_fetch_texel_srgba_dxt1, |
| _mesa_fetch_texel_srgba_dxt1 |
| }, |
| { |
| MESA_FORMAT_SRGBA_DXT3, |
| _mesa_fetch_texel_srgba_dxt3, |
| _mesa_fetch_texel_srgba_dxt3, |
| _mesa_fetch_texel_srgba_dxt3 |
| }, |
| { |
| MESA_FORMAT_SRGBA_DXT5, |
| _mesa_fetch_texel_srgba_dxt5, |
| _mesa_fetch_texel_srgba_dxt5, |
| _mesa_fetch_texel_srgba_dxt5 |
| }, |
| |
| { |
| MESA_FORMAT_RGB_FXT1, |
| NULL, |
| _mesa_fetch_texel_2d_f_rgb_fxt1, |
| NULL |
| }, |
| { |
| MESA_FORMAT_RGBA_FXT1, |
| NULL, |
| _mesa_fetch_texel_2d_f_rgba_fxt1, |
| NULL |
| }, |
| { |
| MESA_FORMAT_RGB_DXT1, |
| _mesa_fetch_texel_rgb_dxt1, |
| _mesa_fetch_texel_rgb_dxt1, |
| _mesa_fetch_texel_rgb_dxt1 |
| }, |
| { |
| MESA_FORMAT_RGBA_DXT1, |
| _mesa_fetch_texel_rgba_dxt1, |
| _mesa_fetch_texel_rgba_dxt1, |
| _mesa_fetch_texel_rgba_dxt1 |
| }, |
| { |
| MESA_FORMAT_RGBA_DXT3, |
| _mesa_fetch_texel_rgba_dxt3, |
| _mesa_fetch_texel_rgba_dxt3, |
| _mesa_fetch_texel_rgba_dxt3 |
| }, |
| { |
| MESA_FORMAT_RGBA_DXT5, |
| _mesa_fetch_texel_rgba_dxt5, |
| _mesa_fetch_texel_rgba_dxt5, |
| _mesa_fetch_texel_rgba_dxt5 |
| }, |
| { |
| MESA_FORMAT_RGBA_FLOAT32, |
| fetch_texel_1d_f_rgba_f32, |
| fetch_texel_2d_f_rgba_f32, |
| fetch_texel_3d_f_rgba_f32 |
| }, |
| { |
| MESA_FORMAT_RGBA_FLOAT16, |
| fetch_texel_1d_f_rgba_f16, |
| fetch_texel_2d_f_rgba_f16, |
| fetch_texel_3d_f_rgba_f16 |
| }, |
| { |
| MESA_FORMAT_RGB_FLOAT32, |
| fetch_texel_1d_f_rgb_f32, |
| fetch_texel_2d_f_rgb_f32, |
| fetch_texel_3d_f_rgb_f32 |
| }, |
| { |
| MESA_FORMAT_RGB_FLOAT16, |
| fetch_texel_1d_f_rgb_f16, |
| fetch_texel_2d_f_rgb_f16, |
| fetch_texel_3d_f_rgb_f16 |
| }, |
| { |
| MESA_FORMAT_ALPHA_FLOAT32, |
| fetch_texel_1d_f_alpha_f32, |
| fetch_texel_2d_f_alpha_f32, |
| fetch_texel_3d_f_alpha_f32 |
| }, |
| { |
| MESA_FORMAT_ALPHA_FLOAT16, |
| fetch_texel_1d_f_alpha_f16, |
| fetch_texel_2d_f_alpha_f16, |
| fetch_texel_3d_f_alpha_f16 |
| }, |
| { |
| MESA_FORMAT_LUMINANCE_FLOAT32, |
| fetch_texel_1d_f_luminance_f32, |
| fetch_texel_2d_f_luminance_f32, |
| fetch_texel_3d_f_luminance_f32 |
| }, |
| { |
| MESA_FORMAT_LUMINANCE_FLOAT16, |
| fetch_texel_1d_f_luminance_f16, |
| fetch_texel_2d_f_luminance_f16, |
| fetch_texel_3d_f_luminance_f16 |
| }, |
| { |
| MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32, |
| fetch_texel_1d_f_luminance_alpha_f32, |
| fetch_texel_2d_f_luminance_alpha_f32, |
| fetch_texel_3d_f_luminance_alpha_f32 |
| }, |
| { |
| MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16, |
| fetch_texel_1d_f_luminance_alpha_f16, |
| fetch_texel_2d_f_luminance_alpha_f16, |
| fetch_texel_3d_f_luminance_alpha_f16 |
| }, |
| { |
| MESA_FORMAT_INTENSITY_FLOAT32, |
| fetch_texel_1d_f_intensity_f32, |
| fetch_texel_2d_f_intensity_f32, |
| fetch_texel_3d_f_intensity_f32 |
| }, |
| { |
| MESA_FORMAT_INTENSITY_FLOAT16, |
| fetch_texel_1d_f_intensity_f16, |
| fetch_texel_2d_f_intensity_f16, |
| fetch_texel_3d_f_intensity_f16 |
| }, |
| { |
| MESA_FORMAT_R_FLOAT32, |
| fetch_texel_1d_f_r_f32, |
| fetch_texel_2d_f_r_f32, |
| fetch_texel_3d_f_r_f32 |
| }, |
| { |
| MESA_FORMAT_R_FLOAT16, |
| fetch_texel_1d_f_r_f16, |
| fetch_texel_2d_f_r_f16, |
| fetch_texel_3d_f_r_f16 |
| }, |
| { |
| MESA_FORMAT_RG_FLOAT32, |
| fetch_texel_1d_f_rg_f32, |
| fetch_texel_2d_f_rg_f32, |
| fetch_texel_3d_f_rg_f32 |
| }, |
| { |
| MESA_FORMAT_RG_FLOAT16, |
| fetch_texel_1d_f_rg_f16, |
| fetch_texel_2d_f_rg_f16, |
| fetch_texel_3d_f_rg_f16 |
| }, |
| |
| { |
| MESA_FORMAT_ALPHA_UINT8, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_ALPHA_UINT16, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_ALPHA_UINT32, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_ALPHA_INT8, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_ALPHA_INT16, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_ALPHA_INT32, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| |
| { |
| MESA_FORMAT_INTENSITY_UINT8, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_INTENSITY_UINT16, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_INTENSITY_UINT32, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_INTENSITY_INT8, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_INTENSITY_INT16, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_INTENSITY_INT32, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| |
| { |
| MESA_FORMAT_LUMINANCE_UINT8, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_LUMINANCE_UINT16, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_LUMINANCE_UINT32, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_LUMINANCE_INT8, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_LUMINANCE_INT16, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_LUMINANCE_INT32, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| |
| { |
| MESA_FORMAT_LUMINANCE_ALPHA_UINT8, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_LUMINANCE_ALPHA_UINT16, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_LUMINANCE_ALPHA_UINT32, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_LUMINANCE_ALPHA_INT8, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_LUMINANCE_ALPHA_INT16, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_LUMINANCE_ALPHA_INT32, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| |
| { |
| MESA_FORMAT_R_INT8, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_RG_INT8, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| { |
| MESA_FORMAT_RGB_INT8, |
| NULL, |
| NULL, |
| NULL |
| }, |
| |
| /* non-normalized, signed int */ |
| { |
| MESA_FORMAT_RGBA_INT8, |
| fetch_texel_1d_rgba_int8, |
| fetch_texel_2d_rgba_int8, |
| fetch_texel_3d_rgba_int8 |
| }, |
| { |
| MESA_FORMAT_R_INT16, |
| NULL, |
| NULL, |
| NULL |
| }, |
| { |
| MESA_FORMAT_RG_INT16, |
| NULL, |
| NULL, |
| NULL |
| }, |
| { |
| MESA_FORMAT_RGB_INT16, |
| NULL, |
| NULL, |
| NULL |
| }, |
| { |
| MESA_FORMAT_RGBA_INT16, |
| fetch_texel_1d_rgba_int16, |
| fetch_texel_2d_rgba_int16, |
| fetch_texel_3d_rgba_int16 |
| }, |
| { |
| MESA_FORMAT_R_INT32, |
| NULL, |
| NULL, |
| NULL |
| }, |
| { |
| MESA_FORMAT_RG_INT32, |
| NULL, |
| NULL, |
| NULL |
| }, |
| { |
| MESA_FORMAT_RGB_INT32, |
| NULL, |
| NULL, |
| NULL |
| }, |
| { |
| MESA_FORMAT_RGBA_INT32, |
| fetch_texel_1d_rgba_int32, |
| fetch_texel_2d_rgba_int32, |
| fetch_texel_3d_rgba_int32 |
| }, |
| |
| /* non-normalized, unsigned int */ |
| { |
| MESA_FORMAT_R_UINT8, |
| NULL, |
| NULL, |
| NULL |
| }, |
| { |
| MESA_FORMAT_RG_UINT8, |
| NULL, |
| NULL, |
| NULL |
| }, |
| { |
| MESA_FORMAT_RGB_UINT8, |
| NULL, |
| NULL, |
| NULL |
| }, |
| { |
| MESA_FORMAT_RGBA_UINT8, |
| fetch_texel_1d_rgba_uint8, |
| fetch_texel_2d_rgba_uint8, |
| fetch_texel_3d_rgba_uint8 |
| }, |
| { |
| MESA_FORMAT_R_UINT16, |
| NULL, |
| NULL, |
| NULL |
| }, |
| { |
| MESA_FORMAT_RG_UINT16, |
| NULL, |
| NULL, |
| NULL |
| }, |
| { |
| MESA_FORMAT_RGB_UINT16, |
| NULL, |
| NULL, |
| NULL |
| }, |
| { |
| MESA_FORMAT_RGBA_UINT16, |
| fetch_texel_1d_rgba_uint16, |
| fetch_texel_2d_rgba_uint16, |
| fetch_texel_3d_rgba_uint16 |
| }, |
| { |
| MESA_FORMAT_R_UINT32, |
| NULL, |
| NULL, |
| NULL |
| }, |
| { |
| MESA_FORMAT_RG_UINT32, |
| NULL, |
| NULL, |
| NULL |
| }, |
| { |
| MESA_FORMAT_RGB_UINT32, |
| NULL, |
| NULL, |
| NULL |
| }, |
| { |
| MESA_FORMAT_RGBA_UINT32, |
| fetch_texel_1d_rgba_uint32, |
| fetch_texel_2d_rgba_uint32, |
| fetch_texel_3d_rgba_uint32 |
| }, |
| |
| /* dudv */ |
| { |
| MESA_FORMAT_DUDV8, |
| fetch_texel_1d_dudv8, |
| fetch_texel_2d_dudv8, |
| fetch_texel_3d_dudv8 |
| }, |
| |
| /* signed, normalized */ |
| { |
| MESA_FORMAT_SIGNED_R8, |
| fetch_texel_1d_signed_r8, |
| fetch_texel_2d_signed_r8, |
| fetch_texel_3d_signed_r8 |
| }, |
| { |
| MESA_FORMAT_SIGNED_RG88_REV, |
| fetch_texel_1d_signed_rg88_rev, |
| fetch_texel_2d_signed_rg88_rev, |
| fetch_texel_3d_signed_rg88_rev |
| }, |
| { |
| MESA_FORMAT_SIGNED_RGBX8888, |
| fetch_texel_1d_signed_rgbx8888, |
| fetch_texel_2d_signed_rgbx8888, |
| fetch_texel_3d_signed_rgbx8888 |
| }, |
| { |
| MESA_FORMAT_SIGNED_RGBA8888, |
| fetch_texel_1d_signed_rgba8888, |
| fetch_texel_2d_signed_rgba8888, |
| fetch_texel_3d_signed_rgba8888 |
| }, |
| { |
| MESA_FORMAT_SIGNED_RGBA8888_REV, |
| fetch_texel_1d_signed_rgba8888_rev, |
| fetch_texel_2d_signed_rgba8888_rev, |
| fetch_texel_3d_signed_rgba8888_rev |
| }, |
| { |
| MESA_FORMAT_SIGNED_R16, |
| fetch_texel_1d_signed_r16, |
| fetch_texel_2d_signed_r16, |
| fetch_texel_3d_signed_r16 |
| }, |
| { |
| MESA_FORMAT_SIGNED_GR1616, |
| fetch_texel_1d_signed_rg1616, |
| fetch_texel_2d_signed_rg1616, |
| fetch_texel_3d_signed_rg1616 |
| }, |
| { |
| MESA_FORMAT_SIGNED_RGB_16, |
| fetch_texel_1d_signed_rgb_16, |
| fetch_texel_2d_signed_rgb_16, |
| fetch_texel_3d_signed_rgb_16 |
| }, |
| { |
| MESA_FORMAT_SIGNED_RGBA_16, |
| fetch_texel_1d_signed_rgba_16, |
| fetch_texel_2d_signed_rgba_16, |
| fetch_texel_3d_signed_rgba_16 |
| }, |
| { |
| MESA_FORMAT_RGBA_16, |
| fetch_texel_1d_rgba_16, |
| fetch_texel_2d_rgba_16, |
| fetch_texel_3d_rgba_16 |
| }, |
| { |
| MESA_FORMAT_RED_RGTC1, |
| _mesa_fetch_texel_red_rgtc1, |
| _mesa_fetch_texel_red_rgtc1, |
| _mesa_fetch_texel_red_rgtc1 |
| }, |
| { |
| MESA_FORMAT_SIGNED_RED_RGTC1, |
| _mesa_fetch_texel_signed_red_rgtc1, |
| _mesa_fetch_texel_signed_red_rgtc1, |
| _mesa_fetch_texel_signed_red_rgtc1 |
| }, |
| { |
| MESA_FORMAT_RG_RGTC2, |
| _mesa_fetch_texel_rg_rgtc2, |
| _mesa_fetch_texel_rg_rgtc2, |
| _mesa_fetch_texel_rg_rgtc2 |
| }, |
| { |
| MESA_FORMAT_SIGNED_RG_RGTC2, |
| _mesa_fetch_texel_signed_rg_rgtc2, |
| _mesa_fetch_texel_signed_rg_rgtc2, |
| _mesa_fetch_texel_signed_rg_rgtc2 |
| }, |
| { |
| MESA_FORMAT_L_LATC1, |
| _mesa_fetch_texel_l_latc1, |
| _mesa_fetch_texel_l_latc1, |
| _mesa_fetch_texel_l_latc1 |
| }, |
| { |
| MESA_FORMAT_SIGNED_L_LATC1, |
| _mesa_fetch_texel_signed_l_latc1, |
| _mesa_fetch_texel_signed_l_latc1, |
| _mesa_fetch_texel_signed_l_latc1 |
| }, |
| { |
| MESA_FORMAT_LA_LATC2, |
| _mesa_fetch_texel_la_latc2, |
| _mesa_fetch_texel_la_latc2, |
| _mesa_fetch_texel_la_latc2 |
| }, |
| { |
| MESA_FORMAT_SIGNED_LA_LATC2, |
| _mesa_fetch_texel_signed_la_latc2, |
| _mesa_fetch_texel_signed_la_latc2, |
| _mesa_fetch_texel_signed_la_latc2 |
| }, |
| { |
| MESA_FORMAT_ETC1_RGB8, |
| NULL, |
| _mesa_fetch_texel_2d_f_etc1_rgb8, |
| NULL |
| }, |
| { |
| MESA_FORMAT_SIGNED_A8, |
| fetch_texel_1d_signed_a8, |
| fetch_texel_2d_signed_a8, |
| fetch_texel_3d_signed_a8 |
| }, |
| { |
| MESA_FORMAT_SIGNED_L8, |
| fetch_texel_1d_signed_l8, |
| fetch_texel_2d_signed_l8, |
| fetch_texel_3d_signed_l8 |
| }, |
| { |
| MESA_FORMAT_SIGNED_AL88, |
| fetch_texel_1d_signed_al88, |
| fetch_texel_2d_signed_al88, |
| fetch_texel_3d_signed_al88 |
| }, |
| { |
| MESA_FORMAT_SIGNED_I8, |
| fetch_texel_1d_signed_i8, |
| fetch_texel_2d_signed_i8, |
| fetch_texel_3d_signed_i8 |
| }, |
| { |
| MESA_FORMAT_SIGNED_A16, |
| fetch_texel_1d_signed_a16, |
| fetch_texel_2d_signed_a16, |
| fetch_texel_3d_signed_a16 |
| }, |
| { |
| MESA_FORMAT_SIGNED_L16, |
| fetch_texel_1d_signed_l16, |
| fetch_texel_2d_signed_l16, |
| fetch_texel_3d_signed_l16 |
| }, |
| { |
| MESA_FORMAT_SIGNED_AL1616, |
| fetch_texel_1d_signed_al1616, |
| fetch_texel_2d_signed_al1616, |
| fetch_texel_3d_signed_al1616 |
| }, |
| { |
| MESA_FORMAT_SIGNED_I16, |
| fetch_texel_1d_signed_i16, |
| fetch_texel_2d_signed_i16, |
| fetch_texel_3d_signed_i16 |
| }, |
| { |
| MESA_FORMAT_RGB9_E5_FLOAT, |
| fetch_texel_1d_rgb9_e5, |
| fetch_texel_2d_rgb9_e5, |
| fetch_texel_3d_rgb9_e5 |
| }, |
| { |
| MESA_FORMAT_R11_G11_B10_FLOAT, |
| fetch_texel_1d_r11_g11_b10f, |
| fetch_texel_2d_r11_g11_b10f, |
| fetch_texel_3d_r11_g11_b10f |
| }, |
| { |
| MESA_FORMAT_Z32_FLOAT, |
| fetch_texel_1d_f_r_f32, /* Reuse the R32F functions. */ |
| fetch_texel_2d_f_r_f32, |
| fetch_texel_3d_f_r_f32 |
| }, |
| { |
| MESA_FORMAT_Z32_FLOAT_X24S8, |
| fetch_texel_1d_z32f_x24s8, |
| fetch_texel_2d_z32f_x24s8, |
| fetch_texel_3d_z32f_x24s8 |
| }, |
| { |
| MESA_FORMAT_ARGB2101010_UINT, |
| NULL, |
| NULL, |
| NULL |
| }, |
| { |
| MESA_FORMAT_ABGR2101010_UINT, |
| NULL, |
| NULL, |
| NULL |
| }, |
| }; |
| |
| |
| FetchTexelFunc |
| _mesa_get_texel_fetch_func(gl_format format, GLuint dims) |
| { |
| #ifdef DEBUG |
| /* check that the table entries are sorted by format name */ |
| gl_format fmt; |
| for (fmt = 0; fmt < MESA_FORMAT_COUNT; fmt++) { |
| assert(texfetch_funcs[fmt].Name == fmt); |
| } |
| #endif |
| |
| STATIC_ASSERT(Elements(texfetch_funcs) == MESA_FORMAT_COUNT); |
| |
| assert(format < MESA_FORMAT_COUNT); |
| |
| switch (dims) { |
| case 1: |
| return texfetch_funcs[format].Fetch1D; |
| case 2: |
| return texfetch_funcs[format].Fetch2D; |
| case 3: |
| return texfetch_funcs[format].Fetch3D; |
| default: |
| assert(0 && "bad dims in _mesa_get_texel_fetch_func"); |
| return NULL; |
| } |
| } |
| |
| |
| /** |
| * Initialize the texture image's FetchTexel methods. |
| */ |
| static void |
| set_fetch_functions(struct gl_sampler_object *samp, |
| struct swrast_texture_image *texImage, GLuint dims) |
| { |
| gl_format format = texImage->Base.TexFormat; |
| |
| ASSERT(dims == 1 || dims == 2 || dims == 3); |
| |
| if (samp->sRGBDecode == GL_SKIP_DECODE_EXT && |
| _mesa_get_format_color_encoding(format) == GL_SRGB) { |
| format = _mesa_get_srgb_format_linear(format); |
| } |
| |
| texImage->FetchTexel = _mesa_get_texel_fetch_func(format, dims); |
| ASSERT(texImage->FetchTexel); |
| } |
| |
| void |
| _mesa_update_fetch_functions(struct gl_context *ctx, GLuint unit) |
| { |
| struct gl_texture_object *texObj = ctx->Texture.Unit[unit]._Current; |
| struct gl_sampler_object *samp; |
| GLuint face, i; |
| GLuint dims; |
| |
| if (!texObj) |
| return; |
| |
| samp = _mesa_get_samplerobj(ctx, unit); |
| |
| dims = _mesa_get_texture_dimensions(texObj->Target); |
| |
| for (face = 0; face < 6; face++) { |
| for (i = 0; i < MAX_TEXTURE_LEVELS; i++) { |
| if (texObj->Image[face][i]) { |
| set_fetch_functions(samp, |
| swrast_texture_image(texObj->Image[face][i]), |
| dims); |
| } |
| } |
| } |
| } |
