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authormarha <marha@users.sourceforge.net>2011-05-25 08:21:39 +0000
committermarha <marha@users.sourceforge.net>2011-05-25 08:21:39 +0000
commit741ef6e15af761d44ca0d8d54f6b99c33dd1b6bd (patch)
tree54152e84082431bb25a59a82c51249769de08202 /mesalib/src/mesa/state_tracker
parent94d512f7295ade7b381fba2e9e0bc0c434cf8b65 (diff)
downloadvcxsrv-741ef6e15af761d44ca0d8d54f6b99c33dd1b6bd.tar.gz
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xkeyboard-config libX11 pixman mesa git update 25 May 2011
Diffstat (limited to 'mesalib/src/mesa/state_tracker')
-rw-r--r--mesalib/src/mesa/state_tracker/st_format.c3030
1 files changed, 1338 insertions, 1692 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_format.c b/mesalib/src/mesa/state_tracker/st_format.c
index 8568c68e1..de30b4fc6 100644
--- a/mesalib/src/mesa/state_tracker/st_format.c
+++ b/mesalib/src/mesa/state_tracker/st_format.c
@@ -1,1692 +1,1338 @@
-/**************************************************************************
- *
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * Copyright (c) 2008-2010 VMware, Inc.
- * 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, sub license, 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 (including the
- * next paragraph) 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 NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
- *
- **************************************************************************/
-
-
-/**
- * Mesa / Gallium format conversion and format selection code.
- * \author Brian Paul
- */
-
-#include "main/imports.h"
-#include "main/context.h"
-#include "main/texstore.h"
-#include "main/image.h"
-#include "main/macros.h"
-#include "main/mfeatures.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "pipe/p_screen.h"
-#include "util/u_format.h"
-#include "st_context.h"
-#include "st_format.h"
-
-
-static GLuint
-format_max_bits(enum pipe_format format)
-{
- GLuint size = util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 0);
-
- size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 1));
- size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 2));
- size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 3));
- size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0));
- size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1));
- return size;
-}
-
-
-/**
- * Return basic GL datatype for the given gallium format.
- */
-GLenum
-st_format_datatype(enum pipe_format format)
-{
- const struct util_format_description *desc;
-
- desc = util_format_description(format);
- assert(desc);
-
- if (desc->layout == UTIL_FORMAT_LAYOUT_PLAIN) {
- if (format == PIPE_FORMAT_B5G5R5A1_UNORM ||
- format == PIPE_FORMAT_B5G6R5_UNORM) {
- return GL_UNSIGNED_SHORT;
- }
- else if (format == PIPE_FORMAT_Z24_UNORM_S8_USCALED ||
- format == PIPE_FORMAT_S8_USCALED_Z24_UNORM ||
- format == PIPE_FORMAT_Z24X8_UNORM ||
- format == PIPE_FORMAT_X8Z24_UNORM) {
- return GL_UNSIGNED_INT_24_8;
- }
- else {
- const GLuint size = format_max_bits(format);
- if (size == 8) {
- if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED)
- return GL_UNSIGNED_BYTE;
- else
- return GL_BYTE;
- }
- else if (size == 16) {
- if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED)
- return GL_UNSIGNED_SHORT;
- else
- return GL_SHORT;
- }
- else {
- assert( size <= 32 );
- if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED)
- return GL_UNSIGNED_INT;
- else
- return GL_INT;
- }
- }
- }
- else if (format == PIPE_FORMAT_UYVY) {
- return GL_UNSIGNED_SHORT;
- }
- else if (format == PIPE_FORMAT_YUYV) {
- return GL_UNSIGNED_SHORT;
- }
- else {
- /* probably a compressed format, unsupported anyway */
- return GL_NONE;
- }
-}
-
-
-/**
- * Translate Mesa format to Gallium format.
- */
-enum pipe_format
-st_mesa_format_to_pipe_format(gl_format mesaFormat)
-{
- switch (mesaFormat) {
- case MESA_FORMAT_RGBA8888:
- return PIPE_FORMAT_A8B8G8R8_UNORM;
- case MESA_FORMAT_RGBA8888_REV:
- return PIPE_FORMAT_R8G8B8A8_UNORM;
- case MESA_FORMAT_ARGB8888:
- return PIPE_FORMAT_B8G8R8A8_UNORM;
- case MESA_FORMAT_ARGB8888_REV:
- return PIPE_FORMAT_A8R8G8B8_UNORM;
- case MESA_FORMAT_XRGB8888:
- return PIPE_FORMAT_B8G8R8X8_UNORM;
- case MESA_FORMAT_XRGB8888_REV:
- return PIPE_FORMAT_X8R8G8B8_UNORM;
- case MESA_FORMAT_ARGB1555:
- return PIPE_FORMAT_B5G5R5A1_UNORM;
- case MESA_FORMAT_ARGB4444:
- return PIPE_FORMAT_B4G4R4A4_UNORM;
- case MESA_FORMAT_RGB565:
- return PIPE_FORMAT_B5G6R5_UNORM;
- case MESA_FORMAT_RGB332:
- return PIPE_FORMAT_B2G3R3_UNORM;
- case MESA_FORMAT_ARGB2101010:
- return PIPE_FORMAT_B10G10R10A2_UNORM;
- case MESA_FORMAT_AL44:
- return PIPE_FORMAT_L4A4_UNORM;
- case MESA_FORMAT_AL88:
- return PIPE_FORMAT_L8A8_UNORM;
- case MESA_FORMAT_AL1616:
- return PIPE_FORMAT_L16A16_UNORM;
- case MESA_FORMAT_A8:
- return PIPE_FORMAT_A8_UNORM;
- case MESA_FORMAT_A16:
- return PIPE_FORMAT_A16_UNORM;
- case MESA_FORMAT_L8:
- return PIPE_FORMAT_L8_UNORM;
- case MESA_FORMAT_L16:
- return PIPE_FORMAT_L16_UNORM;
- case MESA_FORMAT_I8:
- return PIPE_FORMAT_I8_UNORM;
- case MESA_FORMAT_I16:
- return PIPE_FORMAT_I16_UNORM;
- case MESA_FORMAT_Z16:
- return PIPE_FORMAT_Z16_UNORM;
- case MESA_FORMAT_Z32:
- return PIPE_FORMAT_Z32_UNORM;
- case MESA_FORMAT_Z24_S8:
- return PIPE_FORMAT_S8_USCALED_Z24_UNORM;
- case MESA_FORMAT_S8_Z24:
- return PIPE_FORMAT_Z24_UNORM_S8_USCALED;
- case MESA_FORMAT_Z24_X8:
- return PIPE_FORMAT_X8Z24_UNORM;
- case MESA_FORMAT_X8_Z24:
- return PIPE_FORMAT_Z24X8_UNORM;
- case MESA_FORMAT_S8:
- return PIPE_FORMAT_S8_USCALED;
- case MESA_FORMAT_YCBCR:
- return PIPE_FORMAT_UYVY;
-#if FEATURE_texture_s3tc
- case MESA_FORMAT_RGB_DXT1:
- return PIPE_FORMAT_DXT1_RGB;
- case MESA_FORMAT_RGBA_DXT1:
- return PIPE_FORMAT_DXT1_RGBA;
- case MESA_FORMAT_RGBA_DXT3:
- return PIPE_FORMAT_DXT3_RGBA;
- case MESA_FORMAT_RGBA_DXT5:
- return PIPE_FORMAT_DXT5_RGBA;
-#if FEATURE_EXT_texture_sRGB
- case MESA_FORMAT_SRGB_DXT1:
- return PIPE_FORMAT_DXT1_SRGB;
- case MESA_FORMAT_SRGBA_DXT1:
- return PIPE_FORMAT_DXT1_SRGBA;
- case MESA_FORMAT_SRGBA_DXT3:
- return PIPE_FORMAT_DXT3_SRGBA;
- case MESA_FORMAT_SRGBA_DXT5:
- return PIPE_FORMAT_DXT5_SRGBA;
-#endif
-#endif
-#if FEATURE_EXT_texture_sRGB
- case MESA_FORMAT_SLA8:
- return PIPE_FORMAT_L8A8_SRGB;
- case MESA_FORMAT_SL8:
- return PIPE_FORMAT_L8_SRGB;
- case MESA_FORMAT_SRGB8:
- return PIPE_FORMAT_R8G8B8_SRGB;
- case MESA_FORMAT_SRGBA8:
- return PIPE_FORMAT_A8B8G8R8_SRGB;
- case MESA_FORMAT_SARGB8:
- return PIPE_FORMAT_B8G8R8A8_SRGB;
-#endif
- case MESA_FORMAT_RGBA_FLOAT32:
- return PIPE_FORMAT_R32G32B32A32_FLOAT;
- case MESA_FORMAT_RGBA_FLOAT16:
- return PIPE_FORMAT_R16G16B16A16_FLOAT;
- case MESA_FORMAT_RGB_FLOAT32:
- return PIPE_FORMAT_R32G32B32_FLOAT;
- case MESA_FORMAT_RGB_FLOAT16:
- return PIPE_FORMAT_R16G16B16_FLOAT;
- case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
- return PIPE_FORMAT_L32A32_FLOAT;
- case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
- return PIPE_FORMAT_L16A16_FLOAT;
- case MESA_FORMAT_LUMINANCE_FLOAT32:
- return PIPE_FORMAT_L32_FLOAT;
- case MESA_FORMAT_LUMINANCE_FLOAT16:
- return PIPE_FORMAT_L16_FLOAT;
- case MESA_FORMAT_ALPHA_FLOAT32:
- return PIPE_FORMAT_A32_FLOAT;
- case MESA_FORMAT_ALPHA_FLOAT16:
- return PIPE_FORMAT_A16_FLOAT;
- case MESA_FORMAT_INTENSITY_FLOAT32:
- return PIPE_FORMAT_I32_FLOAT;
- case MESA_FORMAT_INTENSITY_FLOAT16:
- return PIPE_FORMAT_I16_FLOAT;
- case MESA_FORMAT_R_FLOAT32:
- return PIPE_FORMAT_R32_FLOAT;
- case MESA_FORMAT_R_FLOAT16:
- return PIPE_FORMAT_R16_FLOAT;
- case MESA_FORMAT_RG_FLOAT32:
- return PIPE_FORMAT_R32G32_FLOAT;
- case MESA_FORMAT_RG_FLOAT16:
- return PIPE_FORMAT_R16G16_FLOAT;
-
- case MESA_FORMAT_R8:
- return PIPE_FORMAT_R8_UNORM;
- case MESA_FORMAT_R16:
- return PIPE_FORMAT_R16_UNORM;
- case MESA_FORMAT_RG88:
- return PIPE_FORMAT_R8G8_UNORM;
- case MESA_FORMAT_RG1616:
- return PIPE_FORMAT_R16G16_UNORM;
- case MESA_FORMAT_RGBA_16:
- return PIPE_FORMAT_R16G16B16A16_UNORM;
-
- /* signed int formats */
- case MESA_FORMAT_RGBA_INT8:
- return PIPE_FORMAT_R8G8B8A8_SSCALED;
- case MESA_FORMAT_RGBA_INT16:
- return PIPE_FORMAT_R16G16B16A16_SSCALED;
- case MESA_FORMAT_RGBA_INT32:
- return PIPE_FORMAT_R32G32B32A32_SSCALED;
-
- /* unsigned int formats */
- case MESA_FORMAT_RGBA_UINT8:
- return PIPE_FORMAT_R8G8B8A8_USCALED;
- case MESA_FORMAT_RGBA_UINT16:
- return PIPE_FORMAT_R16G16B16A16_USCALED;
- case MESA_FORMAT_RGBA_UINT32:
- return PIPE_FORMAT_R32G32B32A32_USCALED;
-
- case MESA_FORMAT_RED_RGTC1:
- return PIPE_FORMAT_RGTC1_UNORM;
- case MESA_FORMAT_SIGNED_RED_RGTC1:
- return PIPE_FORMAT_RGTC1_SNORM;
- case MESA_FORMAT_RG_RGTC2:
- return PIPE_FORMAT_RGTC2_UNORM;
- case MESA_FORMAT_SIGNED_RG_RGTC2:
- return PIPE_FORMAT_RGTC2_SNORM;
-
- case MESA_FORMAT_L_LATC1:
- return PIPE_FORMAT_LATC1_UNORM;
- case MESA_FORMAT_SIGNED_L_LATC1:
- return PIPE_FORMAT_LATC1_SNORM;
- case MESA_FORMAT_LA_LATC2:
- return PIPE_FORMAT_LATC2_UNORM;
- case MESA_FORMAT_SIGNED_LA_LATC2:
- return PIPE_FORMAT_LATC2_SNORM;
-
- /* signed normalized formats */
- case MESA_FORMAT_SIGNED_R8:
- return PIPE_FORMAT_R8_SNORM;
- case MESA_FORMAT_SIGNED_RG88_REV:
- return PIPE_FORMAT_R8G8_SNORM;
- case MESA_FORMAT_SIGNED_RGBA8888_REV:
- return PIPE_FORMAT_R8G8B8A8_SNORM;
-
- case MESA_FORMAT_SIGNED_A8:
- return PIPE_FORMAT_A8_SNORM;
- case MESA_FORMAT_SIGNED_L8:
- return PIPE_FORMAT_L8_SNORM;
- case MESA_FORMAT_SIGNED_AL88:
- return PIPE_FORMAT_L8A8_SNORM;
- case MESA_FORMAT_SIGNED_I8:
- return PIPE_FORMAT_I8_SNORM;
-
- case MESA_FORMAT_SIGNED_R16:
- return PIPE_FORMAT_R16_SNORM;
- case MESA_FORMAT_SIGNED_GR1616:
- return PIPE_FORMAT_R16G16_SNORM;
- case MESA_FORMAT_SIGNED_RGBA_16:
- return PIPE_FORMAT_R16G16B16A16_SNORM;
-
- case MESA_FORMAT_SIGNED_A16:
- return PIPE_FORMAT_A16_SNORM;
- case MESA_FORMAT_SIGNED_L16:
- return PIPE_FORMAT_L16_SNORM;
- case MESA_FORMAT_SIGNED_AL1616:
- return PIPE_FORMAT_L16A16_SNORM;
- case MESA_FORMAT_SIGNED_I16:
- return PIPE_FORMAT_I16_SNORM;
-
- case MESA_FORMAT_RGB9_E5_FLOAT:
- return PIPE_FORMAT_R9G9B9E5_FLOAT;
- case MESA_FORMAT_R11_G11_B10_FLOAT:
- return PIPE_FORMAT_R11G11B10_FLOAT;
-
- default:
- assert(0);
- return PIPE_FORMAT_NONE;
- }
-}
-
-
-/**
- * Translate Gallium format to Mesa format.
- */
-gl_format
-st_pipe_format_to_mesa_format(enum pipe_format format)
-{
- switch (format) {
- case PIPE_FORMAT_A8B8G8R8_UNORM:
- return MESA_FORMAT_RGBA8888;
- case PIPE_FORMAT_R8G8B8A8_UNORM:
- return MESA_FORMAT_RGBA8888_REV;
- case PIPE_FORMAT_B8G8R8A8_UNORM:
- return MESA_FORMAT_ARGB8888;
- case PIPE_FORMAT_A8R8G8B8_UNORM:
- return MESA_FORMAT_ARGB8888_REV;
- case PIPE_FORMAT_B8G8R8X8_UNORM:
- return MESA_FORMAT_XRGB8888;
- case PIPE_FORMAT_X8R8G8B8_UNORM:
- return MESA_FORMAT_XRGB8888_REV;
- case PIPE_FORMAT_B5G5R5A1_UNORM:
- return MESA_FORMAT_ARGB1555;
- case PIPE_FORMAT_B4G4R4A4_UNORM:
- return MESA_FORMAT_ARGB4444;
- case PIPE_FORMAT_B5G6R5_UNORM:
- return MESA_FORMAT_RGB565;
- case PIPE_FORMAT_B2G3R3_UNORM:
- return MESA_FORMAT_RGB332;
- case PIPE_FORMAT_B10G10R10A2_UNORM:
- return MESA_FORMAT_ARGB2101010;
- case PIPE_FORMAT_L4A4_UNORM:
- return MESA_FORMAT_AL44;
- case PIPE_FORMAT_L8A8_UNORM:
- return MESA_FORMAT_AL88;
- case PIPE_FORMAT_L16A16_UNORM:
- return MESA_FORMAT_AL1616;
- case PIPE_FORMAT_A8_UNORM:
- return MESA_FORMAT_A8;
- case PIPE_FORMAT_A16_UNORM:
- return MESA_FORMAT_A16;
- case PIPE_FORMAT_L8_UNORM:
- return MESA_FORMAT_L8;
- case PIPE_FORMAT_L16_UNORM:
- return MESA_FORMAT_L16;
- case PIPE_FORMAT_I8_UNORM:
- return MESA_FORMAT_I8;
- case PIPE_FORMAT_I16_UNORM:
- return MESA_FORMAT_I16;
- case PIPE_FORMAT_S8_USCALED:
- return MESA_FORMAT_S8;
-
- case PIPE_FORMAT_R16G16B16A16_UNORM:
- return MESA_FORMAT_RGBA_16;
-
- case PIPE_FORMAT_Z16_UNORM:
- return MESA_FORMAT_Z16;
- case PIPE_FORMAT_Z32_UNORM:
- return MESA_FORMAT_Z32;
- case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
- return MESA_FORMAT_Z24_S8;
- case PIPE_FORMAT_X8Z24_UNORM:
- return MESA_FORMAT_Z24_X8;
- case PIPE_FORMAT_Z24X8_UNORM:
- return MESA_FORMAT_X8_Z24;
- case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
- return MESA_FORMAT_S8_Z24;
-
- case PIPE_FORMAT_UYVY:
- return MESA_FORMAT_YCBCR;
- case PIPE_FORMAT_YUYV:
- return MESA_FORMAT_YCBCR_REV;
-
-#if FEATURE_texture_s3tc
- case PIPE_FORMAT_DXT1_RGB:
- return MESA_FORMAT_RGB_DXT1;
- case PIPE_FORMAT_DXT1_RGBA:
- return MESA_FORMAT_RGBA_DXT1;
- case PIPE_FORMAT_DXT3_RGBA:
- return MESA_FORMAT_RGBA_DXT3;
- case PIPE_FORMAT_DXT5_RGBA:
- return MESA_FORMAT_RGBA_DXT5;
-#if FEATURE_EXT_texture_sRGB
- case PIPE_FORMAT_DXT1_SRGB:
- return MESA_FORMAT_SRGB_DXT1;
- case PIPE_FORMAT_DXT1_SRGBA:
- return MESA_FORMAT_SRGBA_DXT1;
- case PIPE_FORMAT_DXT3_SRGBA:
- return MESA_FORMAT_SRGBA_DXT3;
- case PIPE_FORMAT_DXT5_SRGBA:
- return MESA_FORMAT_SRGBA_DXT5;
-#endif
-#endif
-
-#if FEATURE_EXT_texture_sRGB
- case PIPE_FORMAT_L8A8_SRGB:
- return MESA_FORMAT_SLA8;
- case PIPE_FORMAT_L8_SRGB:
- return MESA_FORMAT_SL8;
- case PIPE_FORMAT_R8G8B8_SRGB:
- return MESA_FORMAT_SRGB8;
- case PIPE_FORMAT_A8B8G8R8_SRGB:
- return MESA_FORMAT_SRGBA8;
- case PIPE_FORMAT_B8G8R8A8_SRGB:
- return MESA_FORMAT_SARGB8;
-#endif
- case PIPE_FORMAT_R32G32B32A32_FLOAT:
- return MESA_FORMAT_RGBA_FLOAT32;
- case PIPE_FORMAT_R16G16B16A16_FLOAT:
- return MESA_FORMAT_RGBA_FLOAT16;
- case PIPE_FORMAT_R32G32B32_FLOAT:
- return MESA_FORMAT_RGB_FLOAT32;
- case PIPE_FORMAT_R16G16B16_FLOAT:
- return MESA_FORMAT_RGB_FLOAT16;
- case PIPE_FORMAT_L32A32_FLOAT:
- return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32;
- case PIPE_FORMAT_L16A16_FLOAT:
- return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16;
- case PIPE_FORMAT_L32_FLOAT:
- return MESA_FORMAT_LUMINANCE_FLOAT32;
- case PIPE_FORMAT_L16_FLOAT:
- return MESA_FORMAT_LUMINANCE_FLOAT16;
- case PIPE_FORMAT_A32_FLOAT:
- return MESA_FORMAT_ALPHA_FLOAT32;
- case PIPE_FORMAT_A16_FLOAT:
- return MESA_FORMAT_ALPHA_FLOAT16;
- case PIPE_FORMAT_I32_FLOAT:
- return MESA_FORMAT_INTENSITY_FLOAT32;
- case PIPE_FORMAT_I16_FLOAT:
- return MESA_FORMAT_INTENSITY_FLOAT16;
- case PIPE_FORMAT_R32_FLOAT:
- return MESA_FORMAT_R_FLOAT32;
- case PIPE_FORMAT_R16_FLOAT:
- return MESA_FORMAT_R_FLOAT16;
- case PIPE_FORMAT_R32G32_FLOAT:
- return MESA_FORMAT_RG_FLOAT32;
- case PIPE_FORMAT_R16G16_FLOAT:
- return MESA_FORMAT_RG_FLOAT16;
-
- case PIPE_FORMAT_R8_UNORM:
- return MESA_FORMAT_R8;
- case PIPE_FORMAT_R16_UNORM:
- return MESA_FORMAT_R16;
- case PIPE_FORMAT_R8G8_UNORM:
- return MESA_FORMAT_RG88;
- case PIPE_FORMAT_R16G16_UNORM:
- return MESA_FORMAT_RG1616;
-
- /* signed int formats */
- case PIPE_FORMAT_R8G8B8A8_SSCALED:
- return MESA_FORMAT_RGBA_INT8;
- case PIPE_FORMAT_R16G16B16A16_SSCALED:
- return MESA_FORMAT_RGBA_INT16;
- case PIPE_FORMAT_R32G32B32A32_SSCALED:
- return MESA_FORMAT_RGBA_INT32;
-
- /* unsigned int formats */
- case PIPE_FORMAT_R8G8B8A8_USCALED:
- return MESA_FORMAT_RGBA_UINT8;
- case PIPE_FORMAT_R16G16B16A16_USCALED:
- return MESA_FORMAT_RGBA_UINT16;
- case PIPE_FORMAT_R32G32B32A32_USCALED:
- return MESA_FORMAT_RGBA_UINT32;
-
- case PIPE_FORMAT_RGTC1_UNORM:
- return MESA_FORMAT_RED_RGTC1;
- case PIPE_FORMAT_RGTC1_SNORM:
- return MESA_FORMAT_SIGNED_RED_RGTC1;
- case PIPE_FORMAT_RGTC2_UNORM:
- return MESA_FORMAT_RG_RGTC2;
- case PIPE_FORMAT_RGTC2_SNORM:
- return MESA_FORMAT_SIGNED_RG_RGTC2;
-
- case PIPE_FORMAT_LATC1_UNORM:
- return MESA_FORMAT_L_LATC1;
- case PIPE_FORMAT_LATC1_SNORM:
- return MESA_FORMAT_SIGNED_L_LATC1;
- case PIPE_FORMAT_LATC2_UNORM:
- return MESA_FORMAT_LA_LATC2;
- case PIPE_FORMAT_LATC2_SNORM:
- return MESA_FORMAT_SIGNED_LA_LATC2;
-
- /* signed normalized formats */
- case PIPE_FORMAT_R8_SNORM:
- return MESA_FORMAT_SIGNED_R8;
- case PIPE_FORMAT_R8G8_SNORM:
- return MESA_FORMAT_SIGNED_RG88_REV;
- case PIPE_FORMAT_R8G8B8A8_SNORM:
- return MESA_FORMAT_SIGNED_RGBA8888_REV;
-
- case PIPE_FORMAT_A8_SNORM:
- return MESA_FORMAT_SIGNED_A8;
- case PIPE_FORMAT_L8_SNORM:
- return MESA_FORMAT_SIGNED_L8;
- case PIPE_FORMAT_L8A8_SNORM:
- return MESA_FORMAT_SIGNED_AL88;
- case PIPE_FORMAT_I8_SNORM:
- return MESA_FORMAT_SIGNED_I8;
-
- case PIPE_FORMAT_R16_SNORM:
- return MESA_FORMAT_SIGNED_R16;
- case PIPE_FORMAT_R16G16_SNORM:
- return MESA_FORMAT_SIGNED_GR1616;
- case PIPE_FORMAT_R16G16B16A16_SNORM:
- return MESA_FORMAT_SIGNED_RGBA_16;
-
- case PIPE_FORMAT_A16_SNORM:
- return MESA_FORMAT_SIGNED_A16;
- case PIPE_FORMAT_L16_SNORM:
- return MESA_FORMAT_SIGNED_L16;
- case PIPE_FORMAT_L16A16_SNORM:
- return MESA_FORMAT_SIGNED_AL1616;
- case PIPE_FORMAT_I16_SNORM:
- return MESA_FORMAT_SIGNED_I16;
-
- case PIPE_FORMAT_R9G9B9E5_FLOAT:
- return MESA_FORMAT_RGB9_E5_FLOAT;
- case PIPE_FORMAT_R11G11B10_FLOAT:
- return MESA_FORMAT_R11_G11_B10_FLOAT;
-
- default:
- assert(0);
- return MESA_FORMAT_NONE;
- }
-}
-
-
-/**
- * Return first supported format from the given list.
- */
-static enum pipe_format
-find_supported_format(struct pipe_screen *screen,
- const enum pipe_format formats[],
- uint num_formats,
- enum pipe_texture_target target,
- unsigned sample_count,
- unsigned tex_usage)
-{
- uint i;
- for (i = 0; i < num_formats; i++) {
- if (screen->is_format_supported(screen, formats[i], target,
- sample_count, tex_usage)) {
- return formats[i];
- }
- }
- return PIPE_FORMAT_NONE;
-}
-
-
-/**
- * Find an RGBA format supported by the context/winsys.
- */
-static enum pipe_format
-default_rgba_format(struct pipe_screen *screen,
- enum pipe_texture_target target,
- unsigned sample_count,
- unsigned tex_usage)
-{
- static const enum pipe_format colorFormats[] = {
- PIPE_FORMAT_B8G8R8A8_UNORM,
- PIPE_FORMAT_A8R8G8B8_UNORM,
- PIPE_FORMAT_A8B8G8R8_UNORM,
- PIPE_FORMAT_B5G6R5_UNORM
- };
- return find_supported_format(screen, colorFormats, Elements(colorFormats),
- target, sample_count, tex_usage);
-}
-
-
-/**
- * Find an RGB format supported by the context/winsys.
- */
-static enum pipe_format
-default_rgb_format(struct pipe_screen *screen,
- enum pipe_texture_target target,
- unsigned sample_count,
- unsigned tex_usage)
-{
- static const enum pipe_format colorFormats[] = {
- PIPE_FORMAT_B8G8R8X8_UNORM,
- PIPE_FORMAT_X8R8G8B8_UNORM,
- PIPE_FORMAT_X8B8G8R8_UNORM,
- PIPE_FORMAT_B8G8R8A8_UNORM,
- PIPE_FORMAT_A8R8G8B8_UNORM,
- PIPE_FORMAT_A8B8G8R8_UNORM,
- PIPE_FORMAT_B5G6R5_UNORM
- };
- return find_supported_format(screen, colorFormats, Elements(colorFormats),
- target, sample_count, tex_usage);
-}
-
-/**
- * Find an sRGBA format supported by the context/winsys.
- */
-static enum pipe_format
-default_srgba_format(struct pipe_screen *screen,
- enum pipe_texture_target target,
- unsigned sample_count,
- unsigned tex_usage)
-{
- static const enum pipe_format colorFormats[] = {
- PIPE_FORMAT_B8G8R8A8_SRGB,
- PIPE_FORMAT_A8R8G8B8_SRGB,
- PIPE_FORMAT_A8B8G8R8_SRGB,
- };
- return find_supported_format(screen, colorFormats, Elements(colorFormats),
- target, sample_count, tex_usage);
-}
-
-
-/**
- * Given an OpenGL internalFormat value for a texture or surface, return
- * the best matching PIPE_FORMAT_x, or PIPE_FORMAT_NONE if there's no match.
- * This is called during glTexImage2D, for example.
- *
- * The bindings parameter typically has PIPE_BIND_SAMPLER_VIEW set, plus
- * either PIPE_BINDING_RENDER_TARGET or PIPE_BINDING_DEPTH_STENCIL if
- * we want render-to-texture ability.
- *
- * \param internalFormat the user value passed to glTexImage2D
- * \param target one of PIPE_TEXTURE_x
- * \param bindings bitmask of PIPE_BIND_x flags.
- */
-enum pipe_format
-st_choose_format(struct pipe_screen *screen, GLenum internalFormat,
- enum pipe_texture_target target, unsigned sample_count,
- unsigned bindings)
-{
-
- switch (internalFormat) {
- case GL_RGB10:
- case GL_RGB10_A2:
- if (screen->is_format_supported( screen, PIPE_FORMAT_B10G10R10A2_UNORM,
- target, sample_count, bindings))
- return PIPE_FORMAT_B10G10R10A2_UNORM;
- /* Pass through. */
- case 4:
- case GL_RGBA:
- case GL_RGBA8:
- return default_rgba_format( screen, target, sample_count, bindings);
-
- case GL_BGRA:
- if (screen->is_format_supported( screen, PIPE_FORMAT_B8G8R8A8_UNORM,
- target, sample_count, bindings))
- return PIPE_FORMAT_B8G8R8A8_UNORM;
- return default_rgba_format( screen, target, sample_count, bindings);
-
- case 3:
- case GL_RGB:
- case GL_RGB8:
- return default_rgb_format( screen, target, sample_count, bindings);
-
- case GL_RGB12:
- case GL_RGB16:
- case GL_RGBA12:
- case GL_RGBA16:
- if (screen->is_format_supported( screen, PIPE_FORMAT_R16G16B16A16_UNORM,
- target, sample_count, bindings))
- return PIPE_FORMAT_R16G16B16A16_UNORM;
- return default_rgba_format( screen, target, sample_count, bindings);
-
- case GL_RGBA4:
- case GL_RGBA2:
- if (screen->is_format_supported( screen, PIPE_FORMAT_B4G4R4A4_UNORM,
- target, sample_count, bindings))
- return PIPE_FORMAT_B4G4R4A4_UNORM;
- return default_rgba_format( screen, target, sample_count, bindings);
-
- case GL_RGB5_A1:
- if (screen->is_format_supported( screen, PIPE_FORMAT_B5G5R5A1_UNORM,
- target, sample_count, bindings))
- return PIPE_FORMAT_B5G5R5A1_UNORM;
- return default_rgba_format( screen, target, sample_count, bindings);
-
- case GL_R3_G3_B2:
- if (screen->is_format_supported( screen, PIPE_FORMAT_B2G3R3_UNORM,
- target, sample_count, bindings))
- return PIPE_FORMAT_B2G3R3_UNORM;
- /* Pass through. */
- case GL_RGB5:
- case GL_RGB4:
- if (screen->is_format_supported( screen, PIPE_FORMAT_B5G6R5_UNORM,
- target, sample_count, bindings))
- return PIPE_FORMAT_B5G6R5_UNORM;
- if (screen->is_format_supported( screen, PIPE_FORMAT_B5G5R5A1_UNORM,
- target, sample_count, bindings))
- return PIPE_FORMAT_B5G5R5A1_UNORM;
- return default_rgba_format( screen, target, sample_count, bindings);
-
- case GL_ALPHA12:
- case GL_ALPHA16:
- if (screen->is_format_supported( screen, PIPE_FORMAT_A16_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_A16_UNORM;
- /* Pass through. */
- case GL_ALPHA:
- case GL_ALPHA4:
- case GL_ALPHA8:
- case GL_COMPRESSED_ALPHA:
- if (screen->is_format_supported( screen, PIPE_FORMAT_A8_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_A8_UNORM;
- return default_rgba_format( screen, target, sample_count, bindings);
-
- case GL_LUMINANCE12:
- case GL_LUMINANCE16:
- if (screen->is_format_supported( screen, PIPE_FORMAT_L16_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_L16_UNORM;
- /* Pass through. */
- case 1:
- case GL_LUMINANCE:
- case GL_LUMINANCE4:
- case GL_LUMINANCE8:
- if (screen->is_format_supported( screen, PIPE_FORMAT_L8_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_L8_UNORM;
- return default_rgba_format( screen, target, sample_count, bindings);
-
- case GL_LUMINANCE12_ALPHA4:
- case GL_LUMINANCE12_ALPHA12:
- case GL_LUMINANCE16_ALPHA16:
- if (screen->is_format_supported( screen, PIPE_FORMAT_L16A16_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_L16A16_UNORM;
- /* Pass through. */
- case 2:
- case GL_LUMINANCE_ALPHA:
- case GL_LUMINANCE6_ALPHA2:
- case GL_LUMINANCE8_ALPHA8:
- if (screen->is_format_supported( screen, PIPE_FORMAT_L8A8_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_L8A8_UNORM;
- return default_rgba_format( screen, target, sample_count, bindings);
-
- case GL_LUMINANCE4_ALPHA4:
- if (screen->is_format_supported( screen, PIPE_FORMAT_L4A4_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_L4A4_UNORM;
- if (screen->is_format_supported( screen, PIPE_FORMAT_L8A8_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_L8A8_UNORM;
- return default_rgba_format( screen, target, sample_count, bindings);
-
- case GL_INTENSITY12:
- case GL_INTENSITY16:
- if (screen->is_format_supported( screen, PIPE_FORMAT_I16_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_I16_UNORM;
- /* Pass through. */
- case GL_INTENSITY:
- case GL_INTENSITY4:
- case GL_INTENSITY8:
- case GL_COMPRESSED_INTENSITY:
- if (screen->is_format_supported( screen, PIPE_FORMAT_I8_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_I8_UNORM;
- return default_rgba_format( screen, target, sample_count, bindings);
-
- case GL_YCBCR_MESA:
- if (screen->is_format_supported(screen, PIPE_FORMAT_UYVY, target,
- sample_count, bindings)) {
- return PIPE_FORMAT_UYVY;
- }
- if (screen->is_format_supported(screen, PIPE_FORMAT_YUYV, target,
- sample_count, bindings)) {
- return PIPE_FORMAT_YUYV;
- }
- return PIPE_FORMAT_NONE;
-
- case GL_COMPRESSED_RGB:
- /* can only sample from compressed formats */
- if (bindings & ~PIPE_BIND_SAMPLER_VIEW)
- return PIPE_FORMAT_NONE;
- else if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGB,
- target, sample_count, bindings))
- return PIPE_FORMAT_DXT1_RGB;
- else
- return default_rgb_format(screen, target, sample_count, bindings);
-
- case GL_COMPRESSED_RGBA:
- /* can only sample from compressed formats */
- if (bindings & ~PIPE_BIND_SAMPLER_VIEW)
- return PIPE_FORMAT_NONE;
- else if (screen->is_format_supported(screen, PIPE_FORMAT_DXT3_RGBA,
- target, sample_count, bindings))
- return PIPE_FORMAT_DXT3_RGBA;
- else
- return default_rgba_format(screen, target, sample_count, bindings);
-
- case GL_RGB_S3TC:
- case GL_RGB4_S3TC:
- case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
- if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGB,
- target, sample_count, bindings))
- return PIPE_FORMAT_DXT1_RGB;
- else
- return PIPE_FORMAT_NONE;
-
- case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
- if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGBA,
- target, sample_count, bindings))
- return PIPE_FORMAT_DXT1_RGBA;
- else
- return PIPE_FORMAT_NONE;
-
- case GL_RGBA_S3TC:
- case GL_RGBA4_S3TC:
- case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
- if (screen->is_format_supported(screen, PIPE_FORMAT_DXT3_RGBA,
- target, sample_count, bindings))
- return PIPE_FORMAT_DXT3_RGBA;
- else
- return PIPE_FORMAT_NONE;
-
- case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
- if (screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA,
- target, sample_count, bindings))
- return PIPE_FORMAT_DXT5_RGBA;
- else
- return PIPE_FORMAT_NONE;
-
-#if 0
- case GL_COMPRESSED_RGB_FXT1_3DFX:
- return PIPE_FORMAT_RGB_FXT1;
- case GL_COMPRESSED_RGBA_FXT1_3DFX:
- return PIPE_FORMAT_RGB_FXT1;
-#endif
-
- case GL_DEPTH_COMPONENT16:
- if (screen->is_format_supported(screen, PIPE_FORMAT_Z16_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_Z16_UNORM;
- /* fall-through */
- case GL_DEPTH_COMPONENT24:
- if (screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
- target, sample_count, bindings))
- return PIPE_FORMAT_Z24_UNORM_S8_USCALED;
- if (screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
- target, sample_count, bindings))
- return PIPE_FORMAT_S8_USCALED_Z24_UNORM;
- /* fall-through */
- case GL_DEPTH_COMPONENT32:
- if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_Z32_UNORM;
- /* fall-through */
- case GL_DEPTH_COMPONENT:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_Z32_UNORM,
- PIPE_FORMAT_Z24_UNORM_S8_USCALED,
- PIPE_FORMAT_S8_USCALED_Z24_UNORM,
- PIPE_FORMAT_Z16_UNORM
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
-
- case GL_STENCIL_INDEX:
- case GL_STENCIL_INDEX1_EXT:
- case GL_STENCIL_INDEX4_EXT:
- case GL_STENCIL_INDEX8_EXT:
- case GL_STENCIL_INDEX16_EXT:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_S8_USCALED,
- PIPE_FORMAT_Z24_UNORM_S8_USCALED,
- PIPE_FORMAT_S8_USCALED_Z24_UNORM
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
-
- case GL_DEPTH_STENCIL_EXT:
- case GL_DEPTH24_STENCIL8_EXT:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_Z24_UNORM_S8_USCALED,
- PIPE_FORMAT_S8_USCALED_Z24_UNORM
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
-
- case GL_SRGB_EXT:
- case GL_SRGB8_EXT:
- case GL_SRGB_ALPHA_EXT:
- case GL_SRGB8_ALPHA8_EXT:
- return default_srgba_format( screen, target, sample_count, bindings);
-
- case GL_COMPRESSED_SRGB_EXT:
- case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
- if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_SRGB, target,
- sample_count, bindings))
- return PIPE_FORMAT_DXT1_SRGB;
- return default_srgba_format( screen, target, sample_count, bindings);
-
- case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
- return PIPE_FORMAT_DXT1_SRGBA;
-
- case GL_COMPRESSED_SRGB_ALPHA_EXT:
- case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
- if (screen->is_format_supported(screen, PIPE_FORMAT_DXT3_SRGBA, target,
- sample_count, bindings))
- return PIPE_FORMAT_DXT3_SRGBA;
- return default_srgba_format( screen, target, sample_count, bindings);
-
- case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
- return PIPE_FORMAT_DXT5_SRGBA;
-
- case GL_SLUMINANCE_ALPHA_EXT:
- case GL_SLUMINANCE8_ALPHA8_EXT:
- case GL_COMPRESSED_SLUMINANCE_EXT:
- case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
- if (screen->is_format_supported(screen, PIPE_FORMAT_L8A8_SRGB, target,
- sample_count, bindings))
- return PIPE_FORMAT_L8A8_SRGB;
- return default_srgba_format( screen, target, sample_count, bindings);
-
- case GL_SLUMINANCE_EXT:
- case GL_SLUMINANCE8_EXT:
- if (screen->is_format_supported(screen, PIPE_FORMAT_L8_SRGB, target,
- sample_count, bindings))
- return PIPE_FORMAT_L8_SRGB;
- return default_srgba_format( screen, target, sample_count, bindings);
-
- /* prefer formats in order of data size, choosing 16-bit ones if equal sized */
- case GL_RGBA16F_ARB:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_R16G16B16A16_FLOAT,
- PIPE_FORMAT_R32G32B32A32_FLOAT
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
- case GL_RGB16F_ARB:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_R16G16B16_FLOAT,
- PIPE_FORMAT_R16G16B16A16_FLOAT,
- PIPE_FORMAT_R32G32B32_FLOAT,
- PIPE_FORMAT_R32G32B32A32_FLOAT
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
- case GL_LUMINANCE_ALPHA16F_ARB:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_L16A16_FLOAT,
- PIPE_FORMAT_R16G16B16A16_FLOAT,
- PIPE_FORMAT_L32A32_FLOAT,
- PIPE_FORMAT_R32G32B32A32_FLOAT
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
- case GL_ALPHA16F_ARB:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_A16_FLOAT,
- PIPE_FORMAT_L16A16_FLOAT,
- PIPE_FORMAT_A32_FLOAT,
- PIPE_FORMAT_R16G16B16A16_FLOAT,
- PIPE_FORMAT_L32A32_FLOAT,
- PIPE_FORMAT_R32G32B32A32_FLOAT
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
- case GL_INTENSITY16F_ARB:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_I16_FLOAT,
- PIPE_FORMAT_L16A16_FLOAT,
- PIPE_FORMAT_I32_FLOAT,
- PIPE_FORMAT_R16G16B16A16_FLOAT,
- PIPE_FORMAT_L32A32_FLOAT,
- PIPE_FORMAT_R32G32B32A32_FLOAT
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
- case GL_LUMINANCE16F_ARB:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_L16_FLOAT,
- PIPE_FORMAT_L16A16_FLOAT,
- PIPE_FORMAT_L32_FLOAT,
- PIPE_FORMAT_R16G16B16A16_FLOAT,
- PIPE_FORMAT_L32A32_FLOAT,
- PIPE_FORMAT_R32G32B32A32_FLOAT
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
- case GL_R16F:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_R16_FLOAT,
- PIPE_FORMAT_R16G16_FLOAT,
- PIPE_FORMAT_R32_FLOAT,
- PIPE_FORMAT_R16G16B16A16_FLOAT,
- PIPE_FORMAT_R32G32_FLOAT,
- PIPE_FORMAT_R32G32B32A32_FLOAT
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
- case GL_RG16F:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_R16G16_FLOAT,
- PIPE_FORMAT_R16G16B16A16_FLOAT,
- PIPE_FORMAT_R32G32_FLOAT,
- PIPE_FORMAT_R32G32B32A32_FLOAT
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
-
- /* try a 32-bit format if available, otherwise fallback to a 16-bit one */
- case GL_RGBA32F_ARB:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_R32G32B32A32_FLOAT,
- PIPE_FORMAT_R16G16B16A16_FLOAT
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
- case GL_RGB32F_ARB:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_R32G32B32_FLOAT,
- PIPE_FORMAT_R32G32B32A32_FLOAT,
- PIPE_FORMAT_R16G16B16A16_FLOAT
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
- case GL_LUMINANCE_ALPHA32F_ARB:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_L32A32_FLOAT,
- PIPE_FORMAT_R32G32B32A32_FLOAT,
- PIPE_FORMAT_L16A16_FLOAT,
- PIPE_FORMAT_R16G16B16A16_FLOAT
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
- case GL_ALPHA32F_ARB:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_A32_FLOAT,
- PIPE_FORMAT_L32A32_FLOAT,
- PIPE_FORMAT_R32G32B32A32_FLOAT,
- PIPE_FORMAT_A16_FLOAT,
- PIPE_FORMAT_L16A16_FLOAT,
- PIPE_FORMAT_R16G16B16A16_FLOAT
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
- case GL_INTENSITY32F_ARB:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_I32_FLOAT,
- PIPE_FORMAT_L32A32_FLOAT,
- PIPE_FORMAT_R32G32B32A32_FLOAT,
- PIPE_FORMAT_I16_FLOAT,
- PIPE_FORMAT_L16A16_FLOAT,
- PIPE_FORMAT_R16G16B16A16_FLOAT
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
- case GL_LUMINANCE32F_ARB:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_L32_FLOAT,
- PIPE_FORMAT_L32A32_FLOAT,
- PIPE_FORMAT_R32G32B32A32_FLOAT,
- PIPE_FORMAT_L16_FLOAT,
- PIPE_FORMAT_L16A16_FLOAT,
- PIPE_FORMAT_R16G16B16A16_FLOAT
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
- case GL_R32F:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_R32_FLOAT,
- PIPE_FORMAT_R32G32_FLOAT,
- PIPE_FORMAT_R32G32B32A32_FLOAT,
- PIPE_FORMAT_R16_FLOAT,
- PIPE_FORMAT_R16G16_FLOAT,
- PIPE_FORMAT_R16G16B16A16_FLOAT
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
- case GL_RG32F:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_R32G32_FLOAT,
- PIPE_FORMAT_R32G32B32A32_FLOAT,
- PIPE_FORMAT_R16G16_FLOAT,
- PIPE_FORMAT_R16G16B16A16_FLOAT
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
-
- case GL_RED:
- case GL_R8:
- if (screen->is_format_supported(screen, PIPE_FORMAT_R8_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_R8_UNORM;
- return PIPE_FORMAT_NONE;
- case GL_RG:
- case GL_RG8:
- if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_R8G8_UNORM;
- return PIPE_FORMAT_NONE;
-
- case GL_R16:
- if (screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_R16_UNORM;
- return PIPE_FORMAT_NONE;
-
- case GL_RG16:
- if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_R16G16_UNORM;
- return PIPE_FORMAT_NONE;
-
- case GL_COMPRESSED_RED:
- case GL_COMPRESSED_RED_RGTC1:
- if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_RGTC1_UNORM;
- if (screen->is_format_supported(screen, PIPE_FORMAT_R8_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_R8_UNORM;
- return PIPE_FORMAT_NONE;
-
- case GL_COMPRESSED_SIGNED_RED_RGTC1:
- if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_SNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_RGTC1_SNORM;
- return PIPE_FORMAT_NONE;
-
- case GL_COMPRESSED_RG:
- case GL_COMPRESSED_RG_RGTC2:
- if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_RGTC2_UNORM;
- if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_R8G8_UNORM;
- return PIPE_FORMAT_NONE;
-
- case GL_COMPRESSED_SIGNED_RG_RGTC2:
- if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_SNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_RGTC2_SNORM;
- return PIPE_FORMAT_NONE;
-
- case GL_COMPRESSED_LUMINANCE:
- case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
- if (screen->is_format_supported(screen, PIPE_FORMAT_LATC1_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_LATC1_UNORM;
- if (screen->is_format_supported(screen, PIPE_FORMAT_L8_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_L8_UNORM;
- return PIPE_FORMAT_NONE;
-
- case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
- if (screen->is_format_supported(screen, PIPE_FORMAT_LATC1_SNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_LATC1_SNORM;
- return PIPE_FORMAT_NONE;
-
- case GL_COMPRESSED_LUMINANCE_ALPHA:
- case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
- case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
- if (screen->is_format_supported(screen, PIPE_FORMAT_LATC2_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_LATC2_UNORM;
- if (screen->is_format_supported(screen, PIPE_FORMAT_L8A8_UNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_L8A8_UNORM;
- return PIPE_FORMAT_NONE;
-
- case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
- if (screen->is_format_supported(screen, PIPE_FORMAT_LATC2_SNORM, target,
- sample_count, bindings))
- return PIPE_FORMAT_LATC2_SNORM;
- return PIPE_FORMAT_NONE;
-
- /* signed/unsigned integer formats.
- * XXX Mesa only has formats for RGBA signed/unsigned integer formats.
- * If/when new formats are added this code should be updated.
- */
- case GL_RED_INTEGER_EXT:
- case GL_GREEN_INTEGER_EXT:
- case GL_BLUE_INTEGER_EXT:
- case GL_ALPHA_INTEGER_EXT:
- case GL_RGB_INTEGER_EXT:
- case GL_RGBA_INTEGER_EXT:
- case GL_BGR_INTEGER_EXT:
- case GL_BGRA_INTEGER_EXT:
- case GL_LUMINANCE_INTEGER_EXT:
- case GL_LUMINANCE_ALPHA_INTEGER_EXT:
- /* fall-through */
- case GL_RGBA8I_EXT:
- case GL_RGB8I_EXT:
- case GL_ALPHA8I_EXT:
- case GL_INTENSITY8I_EXT:
- case GL_LUMINANCE8I_EXT:
- case GL_LUMINANCE_ALPHA8I_EXT:
- if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SSCALED,
- target,
- sample_count, bindings))
- return PIPE_FORMAT_R8G8B8A8_SSCALED;
- return PIPE_FORMAT_NONE;
- case GL_RGBA16I_EXT:
- case GL_RGB16I_EXT:
- case GL_ALPHA16I_EXT:
- case GL_INTENSITY16I_EXT:
- case GL_LUMINANCE16I_EXT:
- case GL_LUMINANCE_ALPHA16I_EXT:
- if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_SSCALED,
- target,
- sample_count, bindings))
- return PIPE_FORMAT_R16G16B16A16_SSCALED;
- return PIPE_FORMAT_NONE;
- case GL_RGBA32I_EXT:
- case GL_RGB32I_EXT:
- case GL_ALPHA32I_EXT:
- case GL_INTENSITY32I_EXT:
- case GL_LUMINANCE32I_EXT:
- case GL_LUMINANCE_ALPHA32I_EXT:
- /* xxx */
- if (screen->is_format_supported(screen, PIPE_FORMAT_R32G32B32A32_SSCALED,
- target,
- sample_count, bindings))
- return PIPE_FORMAT_R32G32B32A32_SSCALED;
- return PIPE_FORMAT_NONE;
-
- case GL_RGBA8UI_EXT:
- case GL_RGB8UI_EXT:
- case GL_ALPHA8UI_EXT:
- case GL_INTENSITY8UI_EXT:
- case GL_LUMINANCE8UI_EXT:
- case GL_LUMINANCE_ALPHA8UI_EXT:
- if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_USCALED,
- target,
- sample_count, bindings))
- return PIPE_FORMAT_R8G8B8A8_USCALED;
- return PIPE_FORMAT_NONE;
-
- case GL_RGBA16UI_EXT:
- case GL_RGB16UI_EXT:
- case GL_ALPHA16UI_EXT:
- case GL_INTENSITY16UI_EXT:
- case GL_LUMINANCE16UI_EXT:
- case GL_LUMINANCE_ALPHA16UI_EXT:
- if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_USCALED,
- target,
- sample_count, bindings))
- return PIPE_FORMAT_R16G16B16A16_USCALED;
- return PIPE_FORMAT_NONE;
-
- case GL_RGBA32UI_EXT:
- case GL_RGB32UI_EXT:
- case GL_ALPHA32UI_EXT:
- case GL_INTENSITY32UI_EXT:
- case GL_LUMINANCE32UI_EXT:
- case GL_LUMINANCE_ALPHA32UI_EXT:
- if (screen->is_format_supported(screen, PIPE_FORMAT_R32G32B32A32_USCALED,
- target,
- sample_count, bindings))
- return PIPE_FORMAT_R32G32B32A32_USCALED;
- return PIPE_FORMAT_NONE;
-
- /* signed normalized formats */
- case GL_RED_SNORM:
- case GL_R8_SNORM:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_R8_SNORM,
- PIPE_FORMAT_R8G8_SNORM,
- PIPE_FORMAT_R8G8B8A8_SNORM,
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
-
- case GL_R16_SNORM:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_R16_SNORM,
- PIPE_FORMAT_R16G16_SNORM,
- PIPE_FORMAT_R16G16B16A16_SNORM,
- PIPE_FORMAT_R8_SNORM,
- PIPE_FORMAT_R8G8_SNORM,
- PIPE_FORMAT_R8G8B8A8_SNORM,
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
-
- case GL_RG_SNORM:
- case GL_RG8_SNORM:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_R8G8_SNORM,
- PIPE_FORMAT_R8G8B8A8_SNORM,
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
-
- case GL_RG16_SNORM:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_R16G16_SNORM,
- PIPE_FORMAT_R16G16B16A16_SNORM,
- PIPE_FORMAT_R8G8_SNORM,
- PIPE_FORMAT_R8G8B8A8_SNORM,
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
-
- case GL_RGB_SNORM:
- case GL_RGB8_SNORM:
- case GL_RGBA_SNORM:
- case GL_RGBA8_SNORM:
- if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SNORM,
- target,
- sample_count, bindings))
- return PIPE_FORMAT_R8G8B8A8_SNORM;
- return PIPE_FORMAT_NONE;
-
- case GL_RGB16_SNORM:
- case GL_RGBA16_SNORM:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_R16G16B16A16_SNORM,
- PIPE_FORMAT_R8G8B8A8_SNORM,
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
-
-
- case GL_ALPHA_SNORM:
- case GL_ALPHA8_SNORM:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_A8_SNORM,
- PIPE_FORMAT_R8G8B8A8_SNORM,
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
-
- case GL_ALPHA16_SNORM:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_A16_SNORM,
- PIPE_FORMAT_R16G16B16A16_SNORM,
- PIPE_FORMAT_A8_SNORM,
- PIPE_FORMAT_R8G8B8A8_SNORM,
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
-
- case GL_LUMINANCE_SNORM:
- case GL_LUMINANCE8_SNORM:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_L8_SNORM,
- PIPE_FORMAT_R8G8B8A8_SNORM,
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
-
- case GL_LUMINANCE16_SNORM:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_L16_SNORM,
- PIPE_FORMAT_R16G16B16A16_SNORM,
- PIPE_FORMAT_L8_SNORM,
- PIPE_FORMAT_R8G8B8A8_SNORM,
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
-
- case GL_LUMINANCE_ALPHA_SNORM:
- case GL_LUMINANCE8_ALPHA8_SNORM:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_L8A8_SNORM,
- PIPE_FORMAT_R8G8B8A8_SNORM,
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
-
- case GL_LUMINANCE16_ALPHA16_SNORM:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_L16A16_SNORM,
- PIPE_FORMAT_R16G16B16A16_SNORM,
- PIPE_FORMAT_L8A8_SNORM,
- PIPE_FORMAT_R8G8B8A8_SNORM,
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
-
- case GL_INTENSITY_SNORM:
- case GL_INTENSITY8_SNORM:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_I8_SNORM,
- PIPE_FORMAT_R8G8B8A8_SNORM,
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
-
- case GL_INTENSITY16_SNORM:
- {
- static const enum pipe_format formats[] = {
- PIPE_FORMAT_I16_SNORM,
- PIPE_FORMAT_R16G16B16A16_SNORM,
- PIPE_FORMAT_I8_SNORM,
- PIPE_FORMAT_R8G8B8A8_SNORM,
- };
- return find_supported_format(screen, formats, Elements(formats),
- target, sample_count, bindings);
- }
-
- case GL_RGB9_E5:
- if (screen->is_format_supported(screen, PIPE_FORMAT_R9G9B9E5_FLOAT, target,
- sample_count, bindings)) {
- return PIPE_FORMAT_R9G9B9E5_FLOAT;
- }
- return PIPE_FORMAT_NONE;
-
- case GL_R11F_G11F_B10F:
- if (screen->is_format_supported(screen, PIPE_FORMAT_R11G11B10_FLOAT, target,
- sample_count, bindings)) {
- return PIPE_FORMAT_R11G11B10_FLOAT;
- }
- return PIPE_FORMAT_NONE;
-
- default:
- return PIPE_FORMAT_NONE;
- }
-}
-
-
-/**
- * Called by FBO code to choose a PIPE_FORMAT_ for drawing surfaces.
- */
-enum pipe_format
-st_choose_renderbuffer_format(struct pipe_screen *screen,
- GLenum internalFormat, unsigned sample_count)
-{
- uint usage;
- if (_mesa_is_depth_or_stencil_format(internalFormat))
- usage = PIPE_BIND_DEPTH_STENCIL;
- else
- usage = PIPE_BIND_RENDER_TARGET;
- return st_choose_format(screen, internalFormat, PIPE_TEXTURE_2D,
- sample_count, usage);
-}
-
-
-/**
- * Called via ctx->Driver.chooseTextureFormat().
- */
-gl_format
-st_ChooseTextureFormat_renderable(struct gl_context *ctx, GLint internalFormat,
- GLenum format, GLenum type, GLboolean renderable)
-{
- struct pipe_screen *screen = st_context(ctx)->pipe->screen;
- enum pipe_format pFormat;
- uint bindings;
-
- (void) format;
- (void) type;
-
- /* GL textures may wind up being render targets, but we don't know
- * that in advance. Specify potential render target flags now.
- */
- bindings = PIPE_BIND_SAMPLER_VIEW;
- if (renderable == GL_TRUE) {
- if (_mesa_is_depth_format(internalFormat) ||
- _mesa_is_depth_or_stencil_format(internalFormat))
- bindings |= PIPE_BIND_DEPTH_STENCIL;
- else
- bindings |= PIPE_BIND_RENDER_TARGET;
- }
-
- pFormat = st_choose_format(screen, internalFormat,
- PIPE_TEXTURE_2D, 0, bindings);
-
- if (pFormat == PIPE_FORMAT_NONE) {
- /* try choosing format again, this time without render target bindings */
- pFormat = st_choose_format(screen, internalFormat,
- PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW);
- }
-
- if (pFormat == PIPE_FORMAT_NONE) {
- /* no luck at all */
- return MESA_FORMAT_NONE;
- }
-
- return st_pipe_format_to_mesa_format(pFormat);
-}
-
-gl_format
-st_ChooseTextureFormat(struct gl_context *ctx, GLint internalFormat,
- GLenum format, GLenum type)
-{
- boolean want_renderable =
- internalFormat == 3 || internalFormat == 4 ||
- internalFormat == GL_RGB || internalFormat == GL_RGBA ||
- internalFormat == GL_RGB8 || internalFormat == GL_RGBA8 ||
- internalFormat == GL_BGRA;
-
- return st_ChooseTextureFormat_renderable(ctx, internalFormat,
- format, type, want_renderable);
-}
-
-/**
- * Test if a gallium format is equivalent to a GL format/type.
- */
-GLboolean
-st_equal_formats(enum pipe_format pFormat, GLenum format, GLenum type)
-{
- switch (pFormat) {
- case PIPE_FORMAT_A8B8G8R8_UNORM:
- return format == GL_RGBA && type == GL_UNSIGNED_BYTE;
- case PIPE_FORMAT_A8R8G8B8_UNORM:
- return format == GL_BGRA && type == GL_UNSIGNED_BYTE;
- case PIPE_FORMAT_B5G6R5_UNORM:
- return format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5;
- /* XXX more combos... */
- default:
- return GL_FALSE;
- }
-}
-
-GLboolean
-st_sampler_compat_formats(enum pipe_format format1, enum pipe_format format2)
-{
- if (format1 == format2)
- return GL_TRUE;
-
- if (format1 == PIPE_FORMAT_B8G8R8A8_UNORM &&
- format2 == PIPE_FORMAT_B8G8R8X8_UNORM)
- return GL_TRUE;
-
- if (format1 == PIPE_FORMAT_B8G8R8X8_UNORM &&
- format2 == PIPE_FORMAT_B8G8R8A8_UNORM)
- return GL_TRUE;
-
- if (format1 == PIPE_FORMAT_A8B8G8R8_UNORM &&
- format2 == PIPE_FORMAT_X8B8G8R8_UNORM)
- return GL_TRUE;
-
- if (format1 == PIPE_FORMAT_X8B8G8R8_UNORM &&
- format2 == PIPE_FORMAT_A8B8G8R8_UNORM)
- return GL_TRUE;
-
- if (format1 == PIPE_FORMAT_A8R8G8B8_UNORM &&
- format2 == PIPE_FORMAT_X8R8G8B8_UNORM)
- return GL_TRUE;
-
- if (format1 == PIPE_FORMAT_X8R8G8B8_UNORM &&
- format2 == PIPE_FORMAT_A8R8G8B8_UNORM)
- return GL_TRUE;
-
- return GL_FALSE;
-}
-
-
-
-/**
- * This is used for translating texture border color and the clear
- * color. For example, the clear color is interpreted according to
- * the renderbuffer's base format. For example, if clearing a
- * GL_LUMINANCE buffer, ClearColor[0] = luminance and ClearColor[1] =
- * alpha. Similarly for texture border colors.
- */
-void
-st_translate_color(const GLfloat colorIn[4], GLenum baseFormat,
- GLfloat colorOut[4])
-{
- switch (baseFormat) {
- case GL_RED:
- colorOut[0] = colorIn[0];
- colorOut[1] = 0.0F;
- colorOut[2] = 0.0F;
- colorOut[3] = 1.0F;
- break;
- case GL_RG:
- colorOut[0] = colorIn[0];
- colorOut[1] = colorIn[1];
- colorOut[2] = 0.0F;
- colorOut[3] = 1.0F;
- break;
- case GL_RGB:
- colorOut[0] = colorIn[0];
- colorOut[1] = colorIn[1];
- colorOut[2] = colorIn[2];
- colorOut[3] = 1.0F;
- break;
- case GL_ALPHA:
- colorOut[0] = colorOut[1] = colorOut[2] = 0.0;
- colorOut[3] = colorIn[3];
- break;
- case GL_LUMINANCE:
- colorOut[0] = colorOut[1] = colorOut[2] = colorIn[0];
- colorOut[3] = 1.0;
- break;
- case GL_LUMINANCE_ALPHA:
- colorOut[0] = colorOut[1] = colorOut[2] = colorIn[0];
- colorOut[3] = colorIn[3];
- break;
- case GL_INTENSITY:
- colorOut[0] = colorOut[1] = colorOut[2] = colorOut[3] = colorIn[0];
- break;
- default:
- COPY_4V(colorOut, colorIn);
- }
-}
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright (c) 2008-2010 VMware, Inc.
+ * 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, sub license, 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 (including the
+ * next paragraph) 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+
+/**
+ * Mesa / Gallium format conversion and format selection code.
+ * \author Brian Paul
+ */
+
+#include "main/imports.h"
+#include "main/context.h"
+#include "main/texstore.h"
+#include "main/image.h"
+#include "main/macros.h"
+#include "main/mfeatures.h"
+
+#include "pipe/p_context.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_screen.h"
+#include "util/u_format.h"
+#include "st_context.h"
+#include "st_format.h"
+
+
+static GLuint
+format_max_bits(enum pipe_format format)
+{
+ GLuint size = util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 0);
+
+ size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 1));
+ size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 2));
+ size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 3));
+ size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0));
+ size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1));
+ return size;
+}
+
+
+/**
+ * Return basic GL datatype for the given gallium format.
+ */
+GLenum
+st_format_datatype(enum pipe_format format)
+{
+ const struct util_format_description *desc;
+
+ desc = util_format_description(format);
+ assert(desc);
+
+ if (desc->layout == UTIL_FORMAT_LAYOUT_PLAIN) {
+ if (format == PIPE_FORMAT_B5G5R5A1_UNORM ||
+ format == PIPE_FORMAT_B5G6R5_UNORM) {
+ return GL_UNSIGNED_SHORT;
+ }
+ else if (format == PIPE_FORMAT_Z24_UNORM_S8_USCALED ||
+ format == PIPE_FORMAT_S8_USCALED_Z24_UNORM ||
+ format == PIPE_FORMAT_Z24X8_UNORM ||
+ format == PIPE_FORMAT_X8Z24_UNORM) {
+ return GL_UNSIGNED_INT_24_8;
+ }
+ else {
+ const GLuint size = format_max_bits(format);
+ if (size == 8) {
+ if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED)
+ return GL_UNSIGNED_BYTE;
+ else
+ return GL_BYTE;
+ }
+ else if (size == 16) {
+ if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED)
+ return GL_UNSIGNED_SHORT;
+ else
+ return GL_SHORT;
+ }
+ else {
+ assert( size <= 32 );
+ if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED)
+ return GL_UNSIGNED_INT;
+ else
+ return GL_INT;
+ }
+ }
+ }
+ else if (format == PIPE_FORMAT_UYVY) {
+ return GL_UNSIGNED_SHORT;
+ }
+ else if (format == PIPE_FORMAT_YUYV) {
+ return GL_UNSIGNED_SHORT;
+ }
+ else {
+ /* probably a compressed format, unsupported anyway */
+ return GL_NONE;
+ }
+}
+
+
+/**
+ * Translate Mesa format to Gallium format.
+ */
+enum pipe_format
+st_mesa_format_to_pipe_format(gl_format mesaFormat)
+{
+ switch (mesaFormat) {
+ case MESA_FORMAT_RGBA8888:
+ return PIPE_FORMAT_A8B8G8R8_UNORM;
+ case MESA_FORMAT_RGBA8888_REV:
+ return PIPE_FORMAT_R8G8B8A8_UNORM;
+ case MESA_FORMAT_ARGB8888:
+ return PIPE_FORMAT_B8G8R8A8_UNORM;
+ case MESA_FORMAT_ARGB8888_REV:
+ return PIPE_FORMAT_A8R8G8B8_UNORM;
+ case MESA_FORMAT_XRGB8888:
+ return PIPE_FORMAT_B8G8R8X8_UNORM;
+ case MESA_FORMAT_XRGB8888_REV:
+ return PIPE_FORMAT_X8R8G8B8_UNORM;
+ case MESA_FORMAT_ARGB1555:
+ return PIPE_FORMAT_B5G5R5A1_UNORM;
+ case MESA_FORMAT_ARGB4444:
+ return PIPE_FORMAT_B4G4R4A4_UNORM;
+ case MESA_FORMAT_RGB565:
+ return PIPE_FORMAT_B5G6R5_UNORM;
+ case MESA_FORMAT_RGB332:
+ return PIPE_FORMAT_B2G3R3_UNORM;
+ case MESA_FORMAT_ARGB2101010:
+ return PIPE_FORMAT_B10G10R10A2_UNORM;
+ case MESA_FORMAT_AL44:
+ return PIPE_FORMAT_L4A4_UNORM;
+ case MESA_FORMAT_AL88:
+ return PIPE_FORMAT_L8A8_UNORM;
+ case MESA_FORMAT_AL1616:
+ return PIPE_FORMAT_L16A16_UNORM;
+ case MESA_FORMAT_A8:
+ return PIPE_FORMAT_A8_UNORM;
+ case MESA_FORMAT_A16:
+ return PIPE_FORMAT_A16_UNORM;
+ case MESA_FORMAT_L8:
+ return PIPE_FORMAT_L8_UNORM;
+ case MESA_FORMAT_L16:
+ return PIPE_FORMAT_L16_UNORM;
+ case MESA_FORMAT_I8:
+ return PIPE_FORMAT_I8_UNORM;
+ case MESA_FORMAT_I16:
+ return PIPE_FORMAT_I16_UNORM;
+ case MESA_FORMAT_Z16:
+ return PIPE_FORMAT_Z16_UNORM;
+ case MESA_FORMAT_Z32:
+ return PIPE_FORMAT_Z32_UNORM;
+ case MESA_FORMAT_Z24_S8:
+ return PIPE_FORMAT_S8_USCALED_Z24_UNORM;
+ case MESA_FORMAT_S8_Z24:
+ return PIPE_FORMAT_Z24_UNORM_S8_USCALED;
+ case MESA_FORMAT_Z24_X8:
+ return PIPE_FORMAT_X8Z24_UNORM;
+ case MESA_FORMAT_X8_Z24:
+ return PIPE_FORMAT_Z24X8_UNORM;
+ case MESA_FORMAT_S8:
+ return PIPE_FORMAT_S8_USCALED;
+ case MESA_FORMAT_YCBCR:
+ return PIPE_FORMAT_UYVY;
+#if FEATURE_texture_s3tc
+ case MESA_FORMAT_RGB_DXT1:
+ return PIPE_FORMAT_DXT1_RGB;
+ case MESA_FORMAT_RGBA_DXT1:
+ return PIPE_FORMAT_DXT1_RGBA;
+ case MESA_FORMAT_RGBA_DXT3:
+ return PIPE_FORMAT_DXT3_RGBA;
+ case MESA_FORMAT_RGBA_DXT5:
+ return PIPE_FORMAT_DXT5_RGBA;
+#if FEATURE_EXT_texture_sRGB
+ case MESA_FORMAT_SRGB_DXT1:
+ return PIPE_FORMAT_DXT1_SRGB;
+ case MESA_FORMAT_SRGBA_DXT1:
+ return PIPE_FORMAT_DXT1_SRGBA;
+ case MESA_FORMAT_SRGBA_DXT3:
+ return PIPE_FORMAT_DXT3_SRGBA;
+ case MESA_FORMAT_SRGBA_DXT5:
+ return PIPE_FORMAT_DXT5_SRGBA;
+#endif
+#endif
+#if FEATURE_EXT_texture_sRGB
+ case MESA_FORMAT_SLA8:
+ return PIPE_FORMAT_L8A8_SRGB;
+ case MESA_FORMAT_SL8:
+ return PIPE_FORMAT_L8_SRGB;
+ case MESA_FORMAT_SRGB8:
+ return PIPE_FORMAT_R8G8B8_SRGB;
+ case MESA_FORMAT_SRGBA8:
+ return PIPE_FORMAT_A8B8G8R8_SRGB;
+ case MESA_FORMAT_SARGB8:
+ return PIPE_FORMAT_B8G8R8A8_SRGB;
+#endif
+ case MESA_FORMAT_RGBA_FLOAT32:
+ return PIPE_FORMAT_R32G32B32A32_FLOAT;
+ case MESA_FORMAT_RGBA_FLOAT16:
+ return PIPE_FORMAT_R16G16B16A16_FLOAT;
+ case MESA_FORMAT_RGB_FLOAT32:
+ return PIPE_FORMAT_R32G32B32_FLOAT;
+ case MESA_FORMAT_RGB_FLOAT16:
+ return PIPE_FORMAT_R16G16B16_FLOAT;
+ case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
+ return PIPE_FORMAT_L32A32_FLOAT;
+ case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
+ return PIPE_FORMAT_L16A16_FLOAT;
+ case MESA_FORMAT_LUMINANCE_FLOAT32:
+ return PIPE_FORMAT_L32_FLOAT;
+ case MESA_FORMAT_LUMINANCE_FLOAT16:
+ return PIPE_FORMAT_L16_FLOAT;
+ case MESA_FORMAT_ALPHA_FLOAT32:
+ return PIPE_FORMAT_A32_FLOAT;
+ case MESA_FORMAT_ALPHA_FLOAT16:
+ return PIPE_FORMAT_A16_FLOAT;
+ case MESA_FORMAT_INTENSITY_FLOAT32:
+ return PIPE_FORMAT_I32_FLOAT;
+ case MESA_FORMAT_INTENSITY_FLOAT16:
+ return PIPE_FORMAT_I16_FLOAT;
+ case MESA_FORMAT_R_FLOAT32:
+ return PIPE_FORMAT_R32_FLOAT;
+ case MESA_FORMAT_R_FLOAT16:
+ return PIPE_FORMAT_R16_FLOAT;
+ case MESA_FORMAT_RG_FLOAT32:
+ return PIPE_FORMAT_R32G32_FLOAT;
+ case MESA_FORMAT_RG_FLOAT16:
+ return PIPE_FORMAT_R16G16_FLOAT;
+
+ case MESA_FORMAT_R8:
+ return PIPE_FORMAT_R8_UNORM;
+ case MESA_FORMAT_R16:
+ return PIPE_FORMAT_R16_UNORM;
+ case MESA_FORMAT_RG88:
+ return PIPE_FORMAT_R8G8_UNORM;
+ case MESA_FORMAT_RG1616:
+ return PIPE_FORMAT_R16G16_UNORM;
+ case MESA_FORMAT_RGBA_16:
+ return PIPE_FORMAT_R16G16B16A16_UNORM;
+
+ /* signed int formats */
+ case MESA_FORMAT_RGBA_INT8:
+ return PIPE_FORMAT_R8G8B8A8_SSCALED;
+ case MESA_FORMAT_RGBA_INT16:
+ return PIPE_FORMAT_R16G16B16A16_SSCALED;
+ case MESA_FORMAT_RGBA_INT32:
+ return PIPE_FORMAT_R32G32B32A32_SSCALED;
+
+ /* unsigned int formats */
+ case MESA_FORMAT_RGBA_UINT8:
+ return PIPE_FORMAT_R8G8B8A8_USCALED;
+ case MESA_FORMAT_RGBA_UINT16:
+ return PIPE_FORMAT_R16G16B16A16_USCALED;
+ case MESA_FORMAT_RGBA_UINT32:
+ return PIPE_FORMAT_R32G32B32A32_USCALED;
+
+ case MESA_FORMAT_RED_RGTC1:
+ return PIPE_FORMAT_RGTC1_UNORM;
+ case MESA_FORMAT_SIGNED_RED_RGTC1:
+ return PIPE_FORMAT_RGTC1_SNORM;
+ case MESA_FORMAT_RG_RGTC2:
+ return PIPE_FORMAT_RGTC2_UNORM;
+ case MESA_FORMAT_SIGNED_RG_RGTC2:
+ return PIPE_FORMAT_RGTC2_SNORM;
+
+ case MESA_FORMAT_L_LATC1:
+ return PIPE_FORMAT_LATC1_UNORM;
+ case MESA_FORMAT_SIGNED_L_LATC1:
+ return PIPE_FORMAT_LATC1_SNORM;
+ case MESA_FORMAT_LA_LATC2:
+ return PIPE_FORMAT_LATC2_UNORM;
+ case MESA_FORMAT_SIGNED_LA_LATC2:
+ return PIPE_FORMAT_LATC2_SNORM;
+
+ /* signed normalized formats */
+ case MESA_FORMAT_SIGNED_R8:
+ return PIPE_FORMAT_R8_SNORM;
+ case MESA_FORMAT_SIGNED_RG88_REV:
+ return PIPE_FORMAT_R8G8_SNORM;
+ case MESA_FORMAT_SIGNED_RGBA8888_REV:
+ return PIPE_FORMAT_R8G8B8A8_SNORM;
+
+ case MESA_FORMAT_SIGNED_A8:
+ return PIPE_FORMAT_A8_SNORM;
+ case MESA_FORMAT_SIGNED_L8:
+ return PIPE_FORMAT_L8_SNORM;
+ case MESA_FORMAT_SIGNED_AL88:
+ return PIPE_FORMAT_L8A8_SNORM;
+ case MESA_FORMAT_SIGNED_I8:
+ return PIPE_FORMAT_I8_SNORM;
+
+ case MESA_FORMAT_SIGNED_R16:
+ return PIPE_FORMAT_R16_SNORM;
+ case MESA_FORMAT_SIGNED_GR1616:
+ return PIPE_FORMAT_R16G16_SNORM;
+ case MESA_FORMAT_SIGNED_RGBA_16:
+ return PIPE_FORMAT_R16G16B16A16_SNORM;
+
+ case MESA_FORMAT_SIGNED_A16:
+ return PIPE_FORMAT_A16_SNORM;
+ case MESA_FORMAT_SIGNED_L16:
+ return PIPE_FORMAT_L16_SNORM;
+ case MESA_FORMAT_SIGNED_AL1616:
+ return PIPE_FORMAT_L16A16_SNORM;
+ case MESA_FORMAT_SIGNED_I16:
+ return PIPE_FORMAT_I16_SNORM;
+
+ case MESA_FORMAT_RGB9_E5_FLOAT:
+ return PIPE_FORMAT_R9G9B9E5_FLOAT;
+ case MESA_FORMAT_R11_G11_B10_FLOAT:
+ return PIPE_FORMAT_R11G11B10_FLOAT;
+
+ default:
+ assert(0);
+ return PIPE_FORMAT_NONE;
+ }
+}
+
+
+/**
+ * Translate Gallium format to Mesa format.
+ */
+gl_format
+st_pipe_format_to_mesa_format(enum pipe_format format)
+{
+ switch (format) {
+ case PIPE_FORMAT_A8B8G8R8_UNORM:
+ return MESA_FORMAT_RGBA8888;
+ case PIPE_FORMAT_R8G8B8A8_UNORM:
+ return MESA_FORMAT_RGBA8888_REV;
+ case PIPE_FORMAT_B8G8R8A8_UNORM:
+ return MESA_FORMAT_ARGB8888;
+ case PIPE_FORMAT_A8R8G8B8_UNORM:
+ return MESA_FORMAT_ARGB8888_REV;
+ case PIPE_FORMAT_B8G8R8X8_UNORM:
+ return MESA_FORMAT_XRGB8888;
+ case PIPE_FORMAT_X8R8G8B8_UNORM:
+ return MESA_FORMAT_XRGB8888_REV;
+ case PIPE_FORMAT_B5G5R5A1_UNORM:
+ return MESA_FORMAT_ARGB1555;
+ case PIPE_FORMAT_B4G4R4A4_UNORM:
+ return MESA_FORMAT_ARGB4444;
+ case PIPE_FORMAT_B5G6R5_UNORM:
+ return MESA_FORMAT_RGB565;
+ case PIPE_FORMAT_B2G3R3_UNORM:
+ return MESA_FORMAT_RGB332;
+ case PIPE_FORMAT_B10G10R10A2_UNORM:
+ return MESA_FORMAT_ARGB2101010;
+ case PIPE_FORMAT_L4A4_UNORM:
+ return MESA_FORMAT_AL44;
+ case PIPE_FORMAT_L8A8_UNORM:
+ return MESA_FORMAT_AL88;
+ case PIPE_FORMAT_L16A16_UNORM:
+ return MESA_FORMAT_AL1616;
+ case PIPE_FORMAT_A8_UNORM:
+ return MESA_FORMAT_A8;
+ case PIPE_FORMAT_A16_UNORM:
+ return MESA_FORMAT_A16;
+ case PIPE_FORMAT_L8_UNORM:
+ return MESA_FORMAT_L8;
+ case PIPE_FORMAT_L16_UNORM:
+ return MESA_FORMAT_L16;
+ case PIPE_FORMAT_I8_UNORM:
+ return MESA_FORMAT_I8;
+ case PIPE_FORMAT_I16_UNORM:
+ return MESA_FORMAT_I16;
+ case PIPE_FORMAT_S8_USCALED:
+ return MESA_FORMAT_S8;
+
+ case PIPE_FORMAT_R16G16B16A16_UNORM:
+ return MESA_FORMAT_RGBA_16;
+
+ case PIPE_FORMAT_Z16_UNORM:
+ return MESA_FORMAT_Z16;
+ case PIPE_FORMAT_Z32_UNORM:
+ return MESA_FORMAT_Z32;
+ case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
+ return MESA_FORMAT_Z24_S8;
+ case PIPE_FORMAT_X8Z24_UNORM:
+ return MESA_FORMAT_Z24_X8;
+ case PIPE_FORMAT_Z24X8_UNORM:
+ return MESA_FORMAT_X8_Z24;
+ case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
+ return MESA_FORMAT_S8_Z24;
+
+ case PIPE_FORMAT_UYVY:
+ return MESA_FORMAT_YCBCR;
+ case PIPE_FORMAT_YUYV:
+ return MESA_FORMAT_YCBCR_REV;
+
+#if FEATURE_texture_s3tc
+ case PIPE_FORMAT_DXT1_RGB:
+ return MESA_FORMAT_RGB_DXT1;
+ case PIPE_FORMAT_DXT1_RGBA:
+ return MESA_FORMAT_RGBA_DXT1;
+ case PIPE_FORMAT_DXT3_RGBA:
+ return MESA_FORMAT_RGBA_DXT3;
+ case PIPE_FORMAT_DXT5_RGBA:
+ return MESA_FORMAT_RGBA_DXT5;
+#if FEATURE_EXT_texture_sRGB
+ case PIPE_FORMAT_DXT1_SRGB:
+ return MESA_FORMAT_SRGB_DXT1;
+ case PIPE_FORMAT_DXT1_SRGBA:
+ return MESA_FORMAT_SRGBA_DXT1;
+ case PIPE_FORMAT_DXT3_SRGBA:
+ return MESA_FORMAT_SRGBA_DXT3;
+ case PIPE_FORMAT_DXT5_SRGBA:
+ return MESA_FORMAT_SRGBA_DXT5;
+#endif
+#endif
+
+#if FEATURE_EXT_texture_sRGB
+ case PIPE_FORMAT_L8A8_SRGB:
+ return MESA_FORMAT_SLA8;
+ case PIPE_FORMAT_L8_SRGB:
+ return MESA_FORMAT_SL8;
+ case PIPE_FORMAT_R8G8B8_SRGB:
+ return MESA_FORMAT_SRGB8;
+ case PIPE_FORMAT_A8B8G8R8_SRGB:
+ return MESA_FORMAT_SRGBA8;
+ case PIPE_FORMAT_B8G8R8A8_SRGB:
+ return MESA_FORMAT_SARGB8;
+#endif
+ case PIPE_FORMAT_R32G32B32A32_FLOAT:
+ return MESA_FORMAT_RGBA_FLOAT32;
+ case PIPE_FORMAT_R16G16B16A16_FLOAT:
+ return MESA_FORMAT_RGBA_FLOAT16;
+ case PIPE_FORMAT_R32G32B32_FLOAT:
+ return MESA_FORMAT_RGB_FLOAT32;
+ case PIPE_FORMAT_R16G16B16_FLOAT:
+ return MESA_FORMAT_RGB_FLOAT16;
+ case PIPE_FORMAT_L32A32_FLOAT:
+ return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32;
+ case PIPE_FORMAT_L16A16_FLOAT:
+ return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16;
+ case PIPE_FORMAT_L32_FLOAT:
+ return MESA_FORMAT_LUMINANCE_FLOAT32;
+ case PIPE_FORMAT_L16_FLOAT:
+ return MESA_FORMAT_LUMINANCE_FLOAT16;
+ case PIPE_FORMAT_A32_FLOAT:
+ return MESA_FORMAT_ALPHA_FLOAT32;
+ case PIPE_FORMAT_A16_FLOAT:
+ return MESA_FORMAT_ALPHA_FLOAT16;
+ case PIPE_FORMAT_I32_FLOAT:
+ return MESA_FORMAT_INTENSITY_FLOAT32;
+ case PIPE_FORMAT_I16_FLOAT:
+ return MESA_FORMAT_INTENSITY_FLOAT16;
+ case PIPE_FORMAT_R32_FLOAT:
+ return MESA_FORMAT_R_FLOAT32;
+ case PIPE_FORMAT_R16_FLOAT:
+ return MESA_FORMAT_R_FLOAT16;
+ case PIPE_FORMAT_R32G32_FLOAT:
+ return MESA_FORMAT_RG_FLOAT32;
+ case PIPE_FORMAT_R16G16_FLOAT:
+ return MESA_FORMAT_RG_FLOAT16;
+
+ case PIPE_FORMAT_R8_UNORM:
+ return MESA_FORMAT_R8;
+ case PIPE_FORMAT_R16_UNORM:
+ return MESA_FORMAT_R16;
+ case PIPE_FORMAT_R8G8_UNORM:
+ return MESA_FORMAT_RG88;
+ case PIPE_FORMAT_R16G16_UNORM:
+ return MESA_FORMAT_RG1616;
+
+ /* signed int formats */
+ case PIPE_FORMAT_R8G8B8A8_SSCALED:
+ return MESA_FORMAT_RGBA_INT8;
+ case PIPE_FORMAT_R16G16B16A16_SSCALED:
+ return MESA_FORMAT_RGBA_INT16;
+ case PIPE_FORMAT_R32G32B32A32_SSCALED:
+ return MESA_FORMAT_RGBA_INT32;
+
+ /* unsigned int formats */
+ case PIPE_FORMAT_R8G8B8A8_USCALED:
+ return MESA_FORMAT_RGBA_UINT8;
+ case PIPE_FORMAT_R16G16B16A16_USCALED:
+ return MESA_FORMAT_RGBA_UINT16;
+ case PIPE_FORMAT_R32G32B32A32_USCALED:
+ return MESA_FORMAT_RGBA_UINT32;
+
+ case PIPE_FORMAT_RGTC1_UNORM:
+ return MESA_FORMAT_RED_RGTC1;
+ case PIPE_FORMAT_RGTC1_SNORM:
+ return MESA_FORMAT_SIGNED_RED_RGTC1;
+ case PIPE_FORMAT_RGTC2_UNORM:
+ return MESA_FORMAT_RG_RGTC2;
+ case PIPE_FORMAT_RGTC2_SNORM:
+ return MESA_FORMAT_SIGNED_RG_RGTC2;
+
+ case PIPE_FORMAT_LATC1_UNORM:
+ return MESA_FORMAT_L_LATC1;
+ case PIPE_FORMAT_LATC1_SNORM:
+ return MESA_FORMAT_SIGNED_L_LATC1;
+ case PIPE_FORMAT_LATC2_UNORM:
+ return MESA_FORMAT_LA_LATC2;
+ case PIPE_FORMAT_LATC2_SNORM:
+ return MESA_FORMAT_SIGNED_LA_LATC2;
+
+ /* signed normalized formats */
+ case PIPE_FORMAT_R8_SNORM:
+ return MESA_FORMAT_SIGNED_R8;
+ case PIPE_FORMAT_R8G8_SNORM:
+ return MESA_FORMAT_SIGNED_RG88_REV;
+ case PIPE_FORMAT_R8G8B8A8_SNORM:
+ return MESA_FORMAT_SIGNED_RGBA8888_REV;
+
+ case PIPE_FORMAT_A8_SNORM:
+ return MESA_FORMAT_SIGNED_A8;
+ case PIPE_FORMAT_L8_SNORM:
+ return MESA_FORMAT_SIGNED_L8;
+ case PIPE_FORMAT_L8A8_SNORM:
+ return MESA_FORMAT_SIGNED_AL88;
+ case PIPE_FORMAT_I8_SNORM:
+ return MESA_FORMAT_SIGNED_I8;
+
+ case PIPE_FORMAT_R16_SNORM:
+ return MESA_FORMAT_SIGNED_R16;
+ case PIPE_FORMAT_R16G16_SNORM:
+ return MESA_FORMAT_SIGNED_GR1616;
+ case PIPE_FORMAT_R16G16B16A16_SNORM:
+ return MESA_FORMAT_SIGNED_RGBA_16;
+
+ case PIPE_FORMAT_A16_SNORM:
+ return MESA_FORMAT_SIGNED_A16;
+ case PIPE_FORMAT_L16_SNORM:
+ return MESA_FORMAT_SIGNED_L16;
+ case PIPE_FORMAT_L16A16_SNORM:
+ return MESA_FORMAT_SIGNED_AL1616;
+ case PIPE_FORMAT_I16_SNORM:
+ return MESA_FORMAT_SIGNED_I16;
+
+ case PIPE_FORMAT_R9G9B9E5_FLOAT:
+ return MESA_FORMAT_RGB9_E5_FLOAT;
+ case PIPE_FORMAT_R11G11B10_FLOAT:
+ return MESA_FORMAT_R11_G11_B10_FLOAT;
+
+ default:
+ assert(0);
+ return MESA_FORMAT_NONE;
+ }
+}
+
+
+/**
+ * Map GL texture formats to Gallium pipe formats.
+ */
+struct format_mapping
+{
+ GLenum glFormats[18]; /**< list of GLenum formats, 0-terminated */
+ enum pipe_format pipeFormats[10]; /**< list of pipe formats, 0-terminated */
+};
+
+
+#define DEFAULT_RGBA_FORMATS \
+ PIPE_FORMAT_B8G8R8A8_UNORM, \
+ PIPE_FORMAT_A8R8G8B8_UNORM, \
+ PIPE_FORMAT_A8B8G8R8_UNORM, \
+ PIPE_FORMAT_B5G6R5_UNORM, \
+ 0
+
+#define DEFAULT_RGB_FORMATS \
+ PIPE_FORMAT_B8G8R8X8_UNORM, \
+ PIPE_FORMAT_X8R8G8B8_UNORM, \
+ PIPE_FORMAT_X8B8G8R8_UNORM, \
+ PIPE_FORMAT_B8G8R8A8_UNORM, \
+ PIPE_FORMAT_A8R8G8B8_UNORM, \
+ PIPE_FORMAT_A8B8G8R8_UNORM, \
+ PIPE_FORMAT_B5G6R5_UNORM, \
+ 0
+
+#define DEFAULT_SRGBA_FORMATS \
+ PIPE_FORMAT_B8G8R8A8_SRGB, \
+ PIPE_FORMAT_A8R8G8B8_SRGB, \
+ PIPE_FORMAT_A8B8G8R8_SRGB, \
+ 0
+
+/**
+ * This table maps OpenGL texture format enums to Gallium pipe_format enums.
+ * Multiple GL enums might map to multiple pipe_formats.
+ * The first pipe format in the list that's supported is the one that's chosen.
+ */
+static struct format_mapping format_map[] = {
+ /* Basic RGB, RGBA formats */
+ {
+ { GL_RGB10, GL_RGB10_A2, 0 },
+ { PIPE_FORMAT_B10G10R10A2_UNORM, 0 }
+ },
+ {
+ { 4, GL_RGBA, GL_RGBA8, 0 },
+ { DEFAULT_RGBA_FORMATS, 0 }
+ },
+ {
+ { GL_BGRA, 0 },
+ { PIPE_FORMAT_B8G8R8A8_UNORM, DEFAULT_RGB_FORMATS, 0 }
+ },
+ {
+ { 3, GL_RGB, GL_RGB8, 0 },
+ { DEFAULT_RGB_FORMATS, 0 }
+ },
+ {
+ { GL_RGB12, GL_RGB16, GL_RGBA12, GL_RGBA16, 0 },
+ { PIPE_FORMAT_R16G16B16A16_UNORM, DEFAULT_RGB_FORMATS, 0 }
+ },
+ {
+ { GL_RGBA4, GL_RGBA2, 0 },
+ { PIPE_FORMAT_B4G4R4A4_UNORM, DEFAULT_RGBA_FORMATS }
+ },
+ {
+ { GL_RGB5_A1, 0 },
+ { PIPE_FORMAT_B5G5R5A1_UNORM, DEFAULT_RGBA_FORMATS, 0 }
+ },
+ {
+ { GL_R3_G3_B2, 0 },
+ { PIPE_FORMAT_B2G3R3_UNORM, PIPE_FORMAT_B5G6R5_UNORM,
+ PIPE_FORMAT_B5G5R5A1_UNORM, DEFAULT_RGBA_FORMATS }
+ },
+ {
+ { GL_RGB5, GL_RGB4 },
+ { PIPE_FORMAT_B5G6R5_UNORM, PIPE_FORMAT_B5G5R5A1_UNORM,
+ DEFAULT_RGBA_FORMATS }
+ },
+
+ /* basic Alpha formats */
+ {
+ { GL_ALPHA12, GL_ALPHA16, 0 },
+ { PIPE_FORMAT_A16_UNORM, PIPE_FORMAT_A8_UNORM,
+ DEFAULT_RGBA_FORMATS }
+ },
+ {
+ { GL_ALPHA, GL_ALPHA4, GL_ALPHA8, GL_COMPRESSED_ALPHA, 0 },
+ { PIPE_FORMAT_A8_UNORM, DEFAULT_RGBA_FORMATS }
+ },
+
+ /* basic Luminance formats */
+ {
+ { GL_LUMINANCE12, GL_LUMINANCE16, 0 },
+ { PIPE_FORMAT_L16_UNORM, PIPE_FORMAT_L8_UNORM, DEFAULT_RGBA_FORMATS, 0 }
+ },
+ {
+ { 1, GL_LUMINANCE, GL_LUMINANCE4, GL_LUMINANCE8, 0 },
+ { PIPE_FORMAT_L8_UNORM, DEFAULT_RGBA_FORMATS }
+ },
+
+ /* basic Luminance/Alpha formats */
+ {
+ { GL_LUMINANCE12_ALPHA4, GL_LUMINANCE12_ALPHA12,
+ GL_LUMINANCE16_ALPHA16, 0},
+ { PIPE_FORMAT_L16A16_UNORM, PIPE_FORMAT_L8A8_UNORM,
+ PIPE_FORMAT_L8A8_UNORM, DEFAULT_RGBA_FORMATS }
+ },
+ {
+ { 2, GL_LUMINANCE_ALPHA, GL_LUMINANCE6_ALPHA2, GL_LUMINANCE8_ALPHA8, 0 },
+ { PIPE_FORMAT_L8A8_UNORM, DEFAULT_RGBA_FORMATS }
+ },
+ {
+ { GL_LUMINANCE4_ALPHA4, 0 },
+ { PIPE_FORMAT_L4A4_UNORM, PIPE_FORMAT_L4A4_UNORM,
+ DEFAULT_RGBA_FORMATS }
+ },
+
+ /* basic Intensity formats */
+ {
+ { GL_INTENSITY12, GL_INTENSITY16, 0 },
+ { PIPE_FORMAT_I16_UNORM, PIPE_FORMAT_I8_UNORM, DEFAULT_RGBA_FORMATS }
+ },
+ {
+ { GL_INTENSITY, GL_INTENSITY4, GL_INTENSITY8,
+ GL_COMPRESSED_INTENSITY, 0 },
+ { PIPE_FORMAT_I8_UNORM, DEFAULT_RGBA_FORMATS }
+ },
+
+ /* YCbCr */
+ {
+ { GL_YCBCR_MESA, 0 },
+ { PIPE_FORMAT_UYVY, PIPE_FORMAT_YUYV, 0 }
+ },
+
+ /* compressed formats */ /* XXX PIPE_BIND_SAMPLER_VIEW only */
+ {
+ { GL_COMPRESSED_RGB, 0 },
+ { PIPE_FORMAT_DXT1_RGB, 0 }
+ },
+ {
+ { GL_COMPRESSED_RGBA, 0 },
+ { PIPE_FORMAT_DXT5_RGBA, 0 }
+ },
+ {
+ { GL_RGB_S3TC, GL_RGB4_S3TC, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, 0 },
+ { PIPE_FORMAT_DXT1_RGB, 0 }
+ },
+ {
+ { GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, 0 },
+ { PIPE_FORMAT_DXT1_RGBA, 0 }
+ },
+ {
+ { GL_RGBA_S3TC, GL_RGBA4_S3TC, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, 0 },
+ { PIPE_FORMAT_DXT3_RGBA, 0 }
+ },
+ {
+ { GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, 0 },
+ { PIPE_FORMAT_DXT5_RGBA, 0 }
+ },
+
+#if 0
+ {
+ { GL_COMPRESSED_RGB_FXT1_3DFX, 0 },
+ { PIPE_FORMAT_RGB_FXT1, 0 }
+ },
+ {
+ { GL_COMPRESSED_RGBA_FXT1_3DFX, 0 },
+ { PIPE_FORMAT_RGB_FXT1, 0 }
+ },
+#endif
+
+ /* Depth formats */
+ {
+ { GL_DEPTH_COMPONENT16, 0 },
+ { PIPE_FORMAT_Z16_UNORM, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
+ PIPE_FORMAT_S8_USCALED_Z24_UNORM, PIPE_FORMAT_Z32_UNORM, 0 }
+ },
+ {
+ { GL_DEPTH_COMPONENT24, 0 },
+ { PIPE_FORMAT_Z24X8_UNORM, PIPE_FORMAT_X8Z24_UNORM,
+ PIPE_FORMAT_Z24_UNORM_S8_USCALED, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
+ PIPE_FORMAT_Z32_UNORM, 0 }
+ },
+ {
+ { GL_DEPTH_COMPONENT32, 0 },
+ { PIPE_FORMAT_Z32_UNORM, 0 }
+ },
+ {
+ { GL_DEPTH_COMPONENT, 0 },
+ { PIPE_FORMAT_Z24X8_UNORM, PIPE_FORMAT_X8Z24_UNORM,
+ PIPE_FORMAT_Z32_UNORM, PIPE_FORMAT_Z16_UNORM,
+ PIPE_FORMAT_Z24_UNORM_S8_USCALED, PIPE_FORMAT_S8_USCALED_Z24_UNORM, 0 }
+ },
+
+ /* stencil formats */
+ {
+ { GL_STENCIL_INDEX, GL_STENCIL_INDEX1_EXT, GL_STENCIL_INDEX4_EXT,
+ GL_STENCIL_INDEX8_EXT, GL_STENCIL_INDEX16_EXT, 0 },
+ {
+ PIPE_FORMAT_S8_USCALED, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
+ PIPE_FORMAT_S8_USCALED_Z24_UNORM, 0
+ }
+ },
+
+ /* Depth / Stencil formats */
+ {
+ { GL_DEPTH_STENCIL_EXT, GL_DEPTH24_STENCIL8_EXT, 0 },
+ { PIPE_FORMAT_Z24_UNORM_S8_USCALED, PIPE_FORMAT_S8_USCALED_Z24_UNORM, 0 }
+ },
+
+ /* sRGB formats */
+ {
+ { GL_SRGB_EXT, GL_SRGB8_EXT, GL_SRGB_ALPHA_EXT, GL_SRGB8_ALPHA8_EXT, 0 },
+ { DEFAULT_SRGBA_FORMATS }
+ },
+ {
+ { GL_COMPRESSED_SRGB_EXT, GL_COMPRESSED_SRGB_S3TC_DXT1_EXT, 0 },
+ { PIPE_FORMAT_DXT1_SRGB, DEFAULT_SRGBA_FORMATS }
+ },
+ {
+ { GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, 0 },
+ { PIPE_FORMAT_DXT1_SRGBA, 0 }
+ },
+ {
+ { GL_COMPRESSED_SRGB_ALPHA_EXT,
+ GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, 0 },
+ { PIPE_FORMAT_DXT3_SRGBA, DEFAULT_SRGBA_FORMATS }
+ },
+ {
+ { GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, 0 },
+ { PIPE_FORMAT_DXT5_SRGBA, 0 }
+ },
+ {
+ { GL_SLUMINANCE_ALPHA_EXT, GL_SLUMINANCE8_ALPHA8_EXT,
+ GL_COMPRESSED_SLUMINANCE_EXT, GL_COMPRESSED_SLUMINANCE_ALPHA_EXT, 0 },
+ { PIPE_FORMAT_L8A8_SRGB, DEFAULT_SRGBA_FORMATS }
+ },
+ {
+ { GL_SLUMINANCE_EXT, GL_SLUMINANCE8_EXT, 0 },
+ { PIPE_FORMAT_L8_SRGB, DEFAULT_SRGBA_FORMATS }
+ },
+
+ /* 16-bit float formats */
+ {
+ { GL_RGBA16F_ARB, 0 },
+ { PIPE_FORMAT_R16G16B16A16_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
+ },
+ {
+ { GL_RGB16F_ARB, 0 },
+ { PIPE_FORMAT_R16G16B16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
+ PIPE_FORMAT_R32G32B32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
+ },
+ {
+ { GL_LUMINANCE_ALPHA16F_ARB, 0 },
+ { PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
+ PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
+ },
+ {
+ { GL_ALPHA16F_ARB, 0 },
+ { PIPE_FORMAT_A16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
+ PIPE_FORMAT_A32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
+ PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
+ },
+ {
+ { GL_INTENSITY16F_ARB, 0 },
+ { PIPE_FORMAT_I16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
+ PIPE_FORMAT_I32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
+ PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
+ },
+ {
+ { GL_LUMINANCE16F_ARB, 0 },
+ { PIPE_FORMAT_L16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
+ PIPE_FORMAT_L32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
+ PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
+ },
+ {
+ { GL_R16F, 0 },
+ { PIPE_FORMAT_R16_FLOAT, PIPE_FORMAT_R16G16_FLOAT,
+ PIPE_FORMAT_R32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
+ PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
+ },
+ {
+ { GL_RG16F, 0 },
+ { PIPE_FORMAT_R16G16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
+ PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
+ },
+
+ /* 32-bit float formats */
+ {
+ { GL_RGBA32F_ARB, 0 },
+ { PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
+ },
+ {
+ { GL_RGB32F_ARB, 0 },
+ { PIPE_FORMAT_R32G32B32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT,
+ PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
+ },
+ {
+ { GL_LUMINANCE_ALPHA32F_ARB, 0 },
+ { PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT,
+ PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
+ },
+ {
+ { GL_ALPHA32F_ARB, 0 },
+ { PIPE_FORMAT_A32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_A16_FLOAT,
+ PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
+ },
+ {
+ { GL_INTENSITY32F_ARB, 0 },
+ { PIPE_FORMAT_I32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_I16_FLOAT,
+ PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
+ },
+ {
+ { GL_LUMINANCE32F_ARB, 0 },
+ { PIPE_FORMAT_L32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_L16_FLOAT,
+ PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
+ },
+ {
+ { GL_R32F, 0 },
+ { PIPE_FORMAT_R32_FLOAT, PIPE_FORMAT_R32G32_FLOAT,
+ PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_R16_FLOAT,
+ PIPE_FORMAT_R16G16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
+ },
+ {
+ { GL_RG32F, 0 },
+ { PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT,
+ PIPE_FORMAT_R16G16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
+ },
+
+ /* R, RG formats */
+ {
+ { GL_RED, GL_R8, 0 },
+ { PIPE_FORMAT_R8_UNORM, 0 }
+ },
+ {
+ { GL_RG, GL_RG8, 0 },
+ { PIPE_FORMAT_R8G8_UNORM, 0 }
+ },
+ {
+ { GL_R16, 0 },
+ { PIPE_FORMAT_R16_UNORM, 0 }
+ },
+ {
+ { GL_RG16, 0 },
+ { PIPE_FORMAT_R16G16_UNORM, 0 }
+ },
+
+ /* compressed R, RG formats */
+ {
+ { GL_COMPRESSED_RED, GL_COMPRESSED_RED_RGTC1, 0 },
+ { PIPE_FORMAT_RGTC1_UNORM, PIPE_FORMAT_R8_UNORM, 0 }
+ },
+ {
+ { GL_COMPRESSED_SIGNED_RED_RGTC1, 0 },
+ { PIPE_FORMAT_RGTC1_SNORM, 0 }
+ },
+ {
+ { GL_COMPRESSED_RG, GL_COMPRESSED_RG_RGTC2, 0 },
+ { PIPE_FORMAT_RGTC2_UNORM, PIPE_FORMAT_R8G8_UNORM, 0 }
+ },
+ {
+ { GL_COMPRESSED_SIGNED_RG_RGTC2, 0 },
+ { PIPE_FORMAT_RGTC2_SNORM, 0 }
+ },
+ {
+ { GL_COMPRESSED_LUMINANCE, GL_COMPRESSED_LUMINANCE_LATC1_EXT, 0 },
+ { PIPE_FORMAT_LATC1_UNORM, PIPE_FORMAT_L8_UNORM, 0 }
+ },
+ {
+ { GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT, 0 },
+ { PIPE_FORMAT_LATC1_SNORM, 0 }
+ },
+ {
+ { GL_COMPRESSED_LUMINANCE_ALPHA, GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT,
+ GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI, 0 },
+ { PIPE_FORMAT_LATC2_UNORM, PIPE_FORMAT_L8A8_UNORM, 0 }
+ },
+ {
+ { GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT, 0 },
+ { PIPE_FORMAT_LATC2_SNORM, 0 }
+ },
+
+ /* signed/unsigned integer formats.
+ * XXX Mesa only has formats for RGBA signed/unsigned integer formats.
+ * If/when new formats are added this code should be updated.
+ */
+ {
+ { GL_RED_INTEGER_EXT,
+ GL_GREEN_INTEGER_EXT,
+ GL_BLUE_INTEGER_EXT,
+ GL_ALPHA_INTEGER_EXT,
+ GL_RGB_INTEGER_EXT,
+ GL_RGBA_INTEGER_EXT,
+ GL_BGR_INTEGER_EXT,
+ GL_BGRA_INTEGER_EXT,
+ GL_LUMINANCE_INTEGER_EXT,
+ GL_LUMINANCE_ALPHA_INTEGER_EXT,
+ GL_RGBA8I_EXT,
+ GL_RGB8I_EXT,
+ GL_ALPHA8I_EXT,
+ GL_INTENSITY8I_EXT,
+ GL_LUMINANCE8I_EXT,
+ GL_LUMINANCE_ALPHA8I_EXT, 0 },
+ { PIPE_FORMAT_R8G8B8A8_SSCALED, 0 }
+ },
+ {
+ {
+ GL_RGBA16I_EXT,
+ GL_RGB16I_EXT,
+ GL_ALPHA16I_EXT,
+ GL_INTENSITY16I_EXT,
+ GL_LUMINANCE16I_EXT,
+ GL_LUMINANCE_ALPHA16I_EXT, 0 },
+ { PIPE_FORMAT_R16G16B16A16_SSCALED, 0 },
+ },
+ {
+ {
+ GL_RGBA32I_EXT,
+ GL_RGB32I_EXT,
+ GL_ALPHA32I_EXT,
+ GL_INTENSITY32I_EXT,
+ GL_LUMINANCE32I_EXT,
+ GL_LUMINANCE_ALPHA32I_EXT, 0 },
+ { PIPE_FORMAT_R32G32B32A32_SSCALED, 0 }
+ },
+ {
+ {
+ GL_RGBA8UI_EXT,
+ GL_RGB8UI_EXT,
+ GL_ALPHA8UI_EXT,
+ GL_INTENSITY8UI_EXT,
+ GL_LUMINANCE8UI_EXT,
+ GL_LUMINANCE_ALPHA8UI_EXT, 0 },
+ { PIPE_FORMAT_R8G8B8A8_USCALED, 0 }
+ },
+ {
+ {
+ GL_RGBA16UI_EXT,
+ GL_RGB16UI_EXT,
+ GL_ALPHA16UI_EXT,
+ GL_INTENSITY16UI_EXT,
+ GL_LUMINANCE16UI_EXT,
+ GL_LUMINANCE_ALPHA16UI_EXT, 0 },
+ { PIPE_FORMAT_R16G16B16A16_USCALED, 0 }
+ },
+ {
+ {
+ GL_RGBA32UI_EXT,
+ GL_RGB32UI_EXT,
+ GL_ALPHA32UI_EXT,
+ GL_INTENSITY32UI_EXT,
+ GL_LUMINANCE32UI_EXT,
+ GL_LUMINANCE_ALPHA32UI_EXT, 0 },
+ { PIPE_FORMAT_R32G32B32A32_USCALED, 0 }
+ },
+
+ /* signed normalized formats */
+ {
+ { GL_RED_SNORM, GL_R8_SNORM, 0 },
+ { PIPE_FORMAT_R8_SNORM, PIPE_FORMAT_R8G8_SNORM,
+ PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
+ },
+ {
+ { GL_R16_SNORM, 0 },
+ { PIPE_FORMAT_R16_SNORM,
+ PIPE_FORMAT_R16G16_SNORM,
+ PIPE_FORMAT_R16G16B16A16_SNORM,
+ PIPE_FORMAT_R8_SNORM,
+ PIPE_FORMAT_R8G8_SNORM,
+ PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
+ },
+ {
+ { GL_RG_SNORM, GL_RG8_SNORM, 0 },
+ { PIPE_FORMAT_R8G8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
+ },
+ {
+ { GL_RG16_SNORM, 0 },
+ { PIPE_FORMAT_R16G16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
+ PIPE_FORMAT_R8G8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
+ },
+ {
+ { GL_RGB_SNORM, GL_RGB8_SNORM, GL_RGBA_SNORM, GL_RGBA8_SNORM, 0 },
+ { PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
+ },
+ {
+ { GL_RGB16_SNORM, GL_RGBA16_SNORM, 0 },
+ { PIPE_FORMAT_R16G16B16A16_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
+ },
+ {
+ { GL_ALPHA_SNORM, GL_ALPHA8_SNORM, 0 },
+ { PIPE_FORMAT_A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
+ },
+ {
+ { GL_ALPHA16_SNORM, 0 },
+ { PIPE_FORMAT_A16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
+ PIPE_FORMAT_A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
+ },
+ {
+ { GL_LUMINANCE_SNORM, GL_LUMINANCE8_SNORM, 0 },
+ { PIPE_FORMAT_L8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
+ },
+ {
+ { GL_LUMINANCE16_SNORM, 0 },
+ { PIPE_FORMAT_L16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
+ PIPE_FORMAT_L8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
+ },
+ {
+ { GL_LUMINANCE_ALPHA_SNORM, GL_LUMINANCE8_ALPHA8_SNORM, 0 },
+ { PIPE_FORMAT_L8A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
+ },
+ {
+ { GL_LUMINANCE16_ALPHA16_SNORM, 0 },
+ { PIPE_FORMAT_L16A16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
+ PIPE_FORMAT_L8A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
+ },
+ {
+ { GL_INTENSITY_SNORM, GL_INTENSITY8_SNORM, 0 },
+ { PIPE_FORMAT_I8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
+ },
+ {
+ { GL_INTENSITY16_SNORM, 0 },
+ { PIPE_FORMAT_I16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
+ PIPE_FORMAT_I8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
+ }
+};
+
+
+/**
+ * Return first supported format from the given list.
+ */
+static enum pipe_format
+find_supported_format(struct pipe_screen *screen,
+ const enum pipe_format formats[],
+ enum pipe_texture_target target,
+ unsigned sample_count,
+ unsigned tex_usage)
+{
+ uint i;
+ for (i = 0; formats[i]; i++) {
+ if (screen->is_format_supported(screen, formats[i], target,
+ sample_count, tex_usage)) {
+ return formats[i];
+ }
+ }
+ return PIPE_FORMAT_NONE;
+}
+
+
+/**
+ * Given an OpenGL internalFormat value for a texture or surface, return
+ * the best matching PIPE_FORMAT_x, or PIPE_FORMAT_NONE if there's no match.
+ * This is called during glTexImage2D, for example.
+ *
+ * The bindings parameter typically has PIPE_BIND_SAMPLER_VIEW set, plus
+ * either PIPE_BINDING_RENDER_TARGET or PIPE_BINDING_DEPTH_STENCIL if
+ * we want render-to-texture ability.
+ *
+ * \param internalFormat the user value passed to glTexImage2D
+ * \param target one of PIPE_TEXTURE_x
+ * \param bindings bitmask of PIPE_BIND_x flags.
+ */
+enum pipe_format
+st_choose_format(struct pipe_screen *screen, GLenum internalFormat,
+ enum pipe_texture_target target, unsigned sample_count,
+ unsigned bindings)
+{
+ GET_CURRENT_CONTEXT(ctx); /* XXX this should be a function parameter */
+ int i, j;
+
+ /* can't render to compressed formats at this time */
+ if (_mesa_is_compressed_format(ctx, internalFormat)
+ && (bindings & ~PIPE_BIND_SAMPLER_VIEW)) {
+ return PIPE_FORMAT_NONE;
+ }
+
+ /* search table for internalFormat */
+ for (i = 0; i < Elements(format_map); i++) {
+ const struct format_mapping *mapping = &format_map[i];
+ for (j = 0; mapping->glFormats[j]; j++) {
+ if (mapping->glFormats[j] == internalFormat) {
+ /* Found the desired internal format. Find first pipe format
+ * which is supported by the driver.
+ */
+ return find_supported_format(screen, mapping->pipeFormats,
+ target, sample_count, bindings);
+ }
+ }
+ }
+
+ _mesa_problem(NULL, "unhandled format!\n");
+ return PIPE_FORMAT_NONE;
+}
+
+
+/**
+ * Called by FBO code to choose a PIPE_FORMAT_ for drawing surfaces.
+ */
+enum pipe_format
+st_choose_renderbuffer_format(struct pipe_screen *screen,
+ GLenum internalFormat, unsigned sample_count)
+{
+ uint usage;
+ if (_mesa_is_depth_or_stencil_format(internalFormat))
+ usage = PIPE_BIND_DEPTH_STENCIL;
+ else
+ usage = PIPE_BIND_RENDER_TARGET;
+ return st_choose_format(screen, internalFormat, PIPE_TEXTURE_2D,
+ sample_count, usage);
+}
+
+
+/**
+ * Called via ctx->Driver.chooseTextureFormat().
+ */
+gl_format
+st_ChooseTextureFormat_renderable(struct gl_context *ctx, GLint internalFormat,
+ GLenum format, GLenum type, GLboolean renderable)
+{
+ struct pipe_screen *screen = st_context(ctx)->pipe->screen;
+ enum pipe_format pFormat;
+ uint bindings;
+
+ (void) format;
+ (void) type;
+
+ /* GL textures may wind up being render targets, but we don't know
+ * that in advance. Specify potential render target flags now.
+ */
+ bindings = PIPE_BIND_SAMPLER_VIEW;
+ if (renderable == GL_TRUE) {
+ if (_mesa_is_depth_format(internalFormat) ||
+ _mesa_is_depth_or_stencil_format(internalFormat))
+ bindings |= PIPE_BIND_DEPTH_STENCIL;
+ else
+ bindings |= PIPE_BIND_RENDER_TARGET;
+ }
+
+ pFormat = st_choose_format(screen, internalFormat,
+ PIPE_TEXTURE_2D, 0, bindings);
+
+ if (pFormat == PIPE_FORMAT_NONE) {
+ /* try choosing format again, this time without render target bindings */
+ pFormat = st_choose_format(screen, internalFormat,
+ PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW);
+ }
+
+ if (pFormat == PIPE_FORMAT_NONE) {
+ /* no luck at all */
+ return MESA_FORMAT_NONE;
+ }
+
+ return st_pipe_format_to_mesa_format(pFormat);
+}
+
+gl_format
+st_ChooseTextureFormat(struct gl_context *ctx, GLint internalFormat,
+ GLenum format, GLenum type)
+{
+ boolean want_renderable =
+ internalFormat == 3 || internalFormat == 4 ||
+ internalFormat == GL_RGB || internalFormat == GL_RGBA ||
+ internalFormat == GL_RGB8 || internalFormat == GL_RGBA8 ||
+ internalFormat == GL_BGRA;
+
+ return st_ChooseTextureFormat_renderable(ctx, internalFormat,
+ format, type, want_renderable);
+}
+
+/**
+ * Test if a gallium format is equivalent to a GL format/type.
+ */
+GLboolean
+st_equal_formats(enum pipe_format pFormat, GLenum format, GLenum type)
+{
+ switch (pFormat) {
+ case PIPE_FORMAT_A8B8G8R8_UNORM:
+ return format == GL_RGBA && type == GL_UNSIGNED_BYTE;
+ case PIPE_FORMAT_A8R8G8B8_UNORM:
+ return format == GL_BGRA && type == GL_UNSIGNED_BYTE;
+ case PIPE_FORMAT_B5G6R5_UNORM:
+ return format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5;
+ /* XXX more combos... */
+ default:
+ return GL_FALSE;
+ }
+}
+
+GLboolean
+st_sampler_compat_formats(enum pipe_format format1, enum pipe_format format2)
+{
+ if (format1 == format2)
+ return GL_TRUE;
+
+ if (format1 == PIPE_FORMAT_B8G8R8A8_UNORM &&
+ format2 == PIPE_FORMAT_B8G8R8X8_UNORM)
+ return GL_TRUE;
+
+ if (format1 == PIPE_FORMAT_B8G8R8X8_UNORM &&
+ format2 == PIPE_FORMAT_B8G8R8A8_UNORM)
+ return GL_TRUE;
+
+ if (format1 == PIPE_FORMAT_A8B8G8R8_UNORM &&
+ format2 == PIPE_FORMAT_X8B8G8R8_UNORM)
+ return GL_TRUE;
+
+ if (format1 == PIPE_FORMAT_X8B8G8R8_UNORM &&
+ format2 == PIPE_FORMAT_A8B8G8R8_UNORM)
+ return GL_TRUE;
+
+ if (format1 == PIPE_FORMAT_A8R8G8B8_UNORM &&
+ format2 == PIPE_FORMAT_X8R8G8B8_UNORM)
+ return GL_TRUE;
+
+ if (format1 == PIPE_FORMAT_X8R8G8B8_UNORM &&
+ format2 == PIPE_FORMAT_A8R8G8B8_UNORM)
+ return GL_TRUE;
+
+ return GL_FALSE;
+}
+
+
+
+/**
+ * This is used for translating texture border color and the clear
+ * color. For example, the clear color is interpreted according to
+ * the renderbuffer's base format. For example, if clearing a
+ * GL_LUMINANCE buffer, ClearColor[0] = luminance and ClearColor[1] =
+ * alpha. Similarly for texture border colors.
+ */
+void
+st_translate_color(const GLfloat colorIn[4], GLenum baseFormat,
+ GLfloat colorOut[4])
+{
+ switch (baseFormat) {
+ case GL_RED:
+ colorOut[0] = colorIn[0];
+ colorOut[1] = 0.0F;
+ colorOut[2] = 0.0F;
+ colorOut[3] = 1.0F;
+ break;
+ case GL_RG:
+ colorOut[0] = colorIn[0];
+ colorOut[1] = colorIn[1];
+ colorOut[2] = 0.0F;
+ colorOut[3] = 1.0F;
+ break;
+ case GL_RGB:
+ colorOut[0] = colorIn[0];
+ colorOut[1] = colorIn[1];
+ colorOut[2] = colorIn[2];
+ colorOut[3] = 1.0F;
+ break;
+ case GL_ALPHA:
+ colorOut[0] = colorOut[1] = colorOut[2] = 0.0;
+ colorOut[3] = colorIn[3];
+ break;
+ case GL_LUMINANCE:
+ colorOut[0] = colorOut[1] = colorOut[2] = colorIn[0];
+ colorOut[3] = 1.0;
+ break;
+ case GL_LUMINANCE_ALPHA:
+ colorOut[0] = colorOut[1] = colorOut[2] = colorIn[0];
+ colorOut[3] = colorIn[3];
+ break;
+ case GL_INTENSITY:
+ colorOut[0] = colorOut[1] = colorOut[2] = colorOut[3] = colorIn[0];
+ break;
+ default:
+ COPY_4V(colorOut, colorIn);
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 02:09:43 +0000