/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
- * Copyright (c) 2008 VMware, Inc.
+ * Copyright (c) 2008-2010 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
/**
- * Texture Image-related functions.
+ * 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/texformat.h"
-#include "main/enums.h"
+#include "main/image.h"
#include "main/macros.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_bits(
- pipe_format_rgbazs_t info,
- GLuint comp )
-{
- return pf_get_component_bits( (enum pipe_format) info, comp );
-}
static GLuint
-format_max_bits(
- pipe_format_rgbazs_t info )
+format_max_bits(enum pipe_format format)
{
- GLuint size = format_bits( info, PIPE_FORMAT_COMP_R );
+ GLuint size = util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 0);
- size = MAX2( size, format_bits( info, PIPE_FORMAT_COMP_G ) );
- size = MAX2( size, format_bits( info, PIPE_FORMAT_COMP_B ) );
- size = MAX2( size, format_bits( info, PIPE_FORMAT_COMP_A ) );
- size = MAX2( size, format_bits( info, PIPE_FORMAT_COMP_Z ) );
- size = MAX2( size, format_bits( info, PIPE_FORMAT_COMP_S ) );
+ 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;
}
-static GLuint
-format_size(
- pipe_format_rgbazs_t info )
-{
- return
- format_bits( info, PIPE_FORMAT_COMP_R ) +
- format_bits( info, PIPE_FORMAT_COMP_G ) +
- format_bits( info, PIPE_FORMAT_COMP_B ) +
- format_bits( info, PIPE_FORMAT_COMP_A ) +
- format_bits( info, PIPE_FORMAT_COMP_Z ) +
- format_bits( info, PIPE_FORMAT_COMP_S );
-}
-/*
- * XXX temporary here
+/**
+ * Return basic GL datatype for the given gallium format.
*/
-GLboolean
-st_get_format_info(enum pipe_format format, struct pipe_format_info *pinfo)
+GLenum
+st_format_datatype(enum pipe_format format)
{
- if (pf_layout(format) == PIPE_FORMAT_LAYOUT_RGBAZS) {
- pipe_format_rgbazs_t info;
+ const struct util_format_description *desc;
- info = format;
-
-#if 0
- printf("%s\n", pf_name( format ) );
-#endif
+ desc = util_format_description(format);
+ assert(desc);
- /* Data type */
- if (format == PIPE_FORMAT_A1R5G5B5_UNORM || format == PIPE_FORMAT_R5G6B5_UNORM) {
- pinfo->datatype = GL_UNSIGNED_SHORT;
+ 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 {
- GLuint size;
-
- size = format_max_bits( info );
+ const GLuint size = format_max_bits(format);
if (size == 8) {
- if (pf_type(info) == PIPE_FORMAT_TYPE_UNORM)
- pinfo->datatype = GL_UNSIGNED_BYTE;
+ if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED)
+ return GL_UNSIGNED_BYTE;
else
- pinfo->datatype = GL_BYTE;
+ return GL_BYTE;
}
else if (size == 16) {
- if (pf_type(info) == PIPE_FORMAT_TYPE_UNORM)
- pinfo->datatype = GL_UNSIGNED_SHORT;
+ if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED)
+ return GL_UNSIGNED_SHORT;
else
- pinfo->datatype = GL_SHORT;
+ return GL_SHORT;
}
else {
assert( size <= 32 );
- if (pf_type(info) == PIPE_FORMAT_TYPE_UNORM)
- pinfo->datatype = GL_UNSIGNED_INT;
+ if (desc->channel[0].type == UTIL_FORMAT_TYPE_UNSIGNED)
+ return GL_UNSIGNED_INT;
else
- pinfo->datatype = GL_INT;
- }
- }
-
- /* Component bits */
- pinfo->red_bits = format_bits( info, PIPE_FORMAT_COMP_R );
- pinfo->green_bits = format_bits( info, PIPE_FORMAT_COMP_G );
- pinfo->blue_bits = format_bits( info, PIPE_FORMAT_COMP_B );
- pinfo->alpha_bits = format_bits( info, PIPE_FORMAT_COMP_A );
- pinfo->depth_bits = format_bits( info, PIPE_FORMAT_COMP_Z );
- pinfo->stencil_bits = format_bits( info, PIPE_FORMAT_COMP_S );
- pinfo->luminance_bits = 0;
- pinfo->intensity_bits = 0;
-
- /* Format size */
- pinfo->size = format_size( info ) / 8;
-
- /* Luminance & Intensity bits */
- if( pf_swizzle_x(info) == PIPE_FORMAT_COMP_R &&
- pf_swizzle_y(info) == PIPE_FORMAT_COMP_R &&
- pf_swizzle_z(info) == PIPE_FORMAT_COMP_R ) {
- if( pf_swizzle_w(info) == PIPE_FORMAT_COMP_R ) {
- pinfo->intensity_bits = pinfo->red_bits;
- }
- else {
- pinfo->luminance_bits = pinfo->red_bits;
- }
- pinfo->red_bits = 0;
- }
-
- /* Base format */
- if (pinfo->depth_bits) {
- if (pinfo->stencil_bits) {
- pinfo->base_format = GL_DEPTH_STENCIL_EXT;
- }
- else {
- pinfo->base_format = GL_DEPTH_COMPONENT;
+ return GL_INT;
}
}
- else if (pinfo->stencil_bits) {
- pinfo->base_format = GL_STENCIL_INDEX;
- }
- else {
- pinfo->base_format = GL_RGBA;
- }
}
- else if (pf_layout(format) == PIPE_FORMAT_LAYOUT_YCBCR) {
- pinfo->base_format = GL_YCBCR_MESA;
- pinfo->datatype = GL_UNSIGNED_SHORT;
- pinfo->size = 2; /* two bytes per "texel" */
+ else if (format == PIPE_FORMAT_UYVY) {
+ return GL_UNSIGNED_SHORT;
+ }
+ else if (format == PIPE_FORMAT_YUYV) {
+ return GL_UNSIGNED_SHORT;
}
else {
/* compressed format? */
assert(0);
}
-#if 0
- printf(
- "ST_FORMAT: R(%u), G(%u), B(%u), A(%u), Z(%u), S(%u)\n",
- pinfo->red_bits,
- pinfo->green_bits,
- pinfo->blue_bits,
- pinfo->alpha_bits,
- pinfo->depth_bits,
- pinfo->stencil_bits );
-#endif
-
- pinfo->format = format;
-
- return GL_TRUE;
-}
-
-
-/**
- * Return bytes per pixel for the given format.
- */
-GLuint
-st_sizeof_format(enum pipe_format format)
-{
- struct pipe_format_info info;
- if (!st_get_format_info( format, &info )) {
- assert( 0 );
- return 0;
- }
- return info.size;
+ assert(0);
+ return GL_NONE;
}
/**
- * Return bytes per pixel for the given format.
+ * Translate Mesa format to Gallium format.
*/
-GLenum
-st_format_datatype(enum pipe_format format)
-{
- struct pipe_format_info info;
- if (!st_get_format_info( format, &info )) {
- assert( 0 );
- return 0;
- }
- return info.datatype;
-}
-
-
enum pipe_format
-st_mesa_format_to_pipe_format(GLuint mesaFormat)
+st_mesa_format_to_pipe_format(gl_format mesaFormat)
{
switch (mesaFormat) {
- /* fix this */
- case MESA_FORMAT_ARGB8888_REV:
+ 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_A1R5G5B5_UNORM;
+ return PIPE_FORMAT_B5G5R5A1_UNORM;
case MESA_FORMAT_ARGB4444:
- return PIPE_FORMAT_A4R4G4B4_UNORM;
+ return PIPE_FORMAT_B4G4R4A4_UNORM;
case MESA_FORMAT_RGB565:
- return PIPE_FORMAT_R5G6B5_UNORM;
+ return PIPE_FORMAT_B5G6R5_UNORM;
case MESA_FORMAT_AL88:
- return PIPE_FORMAT_A8L8_UNORM;
+ return PIPE_FORMAT_L8A8_UNORM;
case MESA_FORMAT_A8:
return PIPE_FORMAT_A8_UNORM;
case MESA_FORMAT_L8:
case MESA_FORMAT_Z32:
return PIPE_FORMAT_Z32_UNORM;
case MESA_FORMAT_Z24_S8:
- return PIPE_FORMAT_Z24S8_UNORM;
+ return PIPE_FORMAT_S8_USCALED_Z24_UNORM;
case MESA_FORMAT_S8_Z24:
- return PIPE_FORMAT_S8Z24_UNORM;
+ 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_YCBCR;
+ return PIPE_FORMAT_UYVY;
#if FEATURE_texture_s3tc
case MESA_FORMAT_RGB_DXT1:
return PIPE_FORMAT_DXT1_RGB;
#endif
#if FEATURE_EXT_texture_sRGB
case MESA_FORMAT_SLA8:
- return PIPE_FORMAT_A8L8_SRGB;
+ 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_R8G8B8A8_SRGB;
+ return PIPE_FORMAT_A8B8G8R8_SRGB;
case MESA_FORMAT_SARGB8:
- return PIPE_FORMAT_A8R8G8B8_SRGB;
+ return PIPE_FORMAT_B8G8R8A8_SRGB;
#endif
+ 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;
default:
assert(0);
- return 0;
+ return PIPE_FORMAT_NONE;
}
}
+
/**
- * Find an RGBA format supported by the context/winsys.
+ * 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_L8A8_UNORM:
+ return MESA_FORMAT_AL88;
+ case PIPE_FORMAT_A8_UNORM:
+ return MESA_FORMAT_A8;
+ case PIPE_FORMAT_L8_UNORM:
+ return MESA_FORMAT_L8;
+ case PIPE_FORMAT_I8_UNORM:
+ return MESA_FORMAT_I8;
+ case PIPE_FORMAT_S8_USCALED:
+ return MESA_FORMAT_S8;
+
+ case PIPE_FORMAT_R16G16B16A16_SNORM:
+ return MESA_FORMAT_SIGNED_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_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;
+ default:
+ assert(0);
+ return MESA_FORMAT_NONE;
+ }
+}
+
+
+/**
+ * Return first supported format from the given list.
*/
static enum pipe_format
-default_rgba_format(struct pipe_screen *screen,
- enum pipe_texture_target target,
- unsigned tex_usage,
- unsigned geom_flags)
+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,
+ unsigned geom_flags)
{
- static const enum pipe_format colorFormats[] = {
- PIPE_FORMAT_A8R8G8B8_UNORM,
- PIPE_FORMAT_B8G8R8A8_UNORM,
- PIPE_FORMAT_R8G8B8A8_UNORM,
- PIPE_FORMAT_R5G6B5_UNORM
- };
uint i;
- for (i = 0; i < Elements(colorFormats); i++) {
- if (screen->is_format_supported( screen, colorFormats[i], target, tex_usage, geom_flags )) {
- return colorFormats[i];
+ for (i = 0; i < num_formats; i++) {
+ if (screen->is_format_supported(screen, formats[i], target,
+ sample_count, tex_usage, geom_flags)) {
+ return formats[i];
}
}
return PIPE_FORMAT_NONE;
}
+
/**
- * Find an sRGBA format supported by the context/winsys.
+ * Find an RGBA format supported by the context/winsys.
*/
static enum pipe_format
-default_srgba_format(struct pipe_screen *screen,
+default_rgba_format(struct pipe_screen *screen,
enum pipe_texture_target target,
- unsigned tex_usage,
+ unsigned sample_count,
+ unsigned tex_usage,
unsigned geom_flags)
{
static const enum pipe_format colorFormats[] = {
- PIPE_FORMAT_A8R8G8B8_SRGB,
- PIPE_FORMAT_B8G8R8A8_SRGB,
- PIPE_FORMAT_R8G8B8A8_SRGB,
+ PIPE_FORMAT_B8G8R8A8_UNORM,
+ PIPE_FORMAT_A8R8G8B8_UNORM,
+ PIPE_FORMAT_A8B8G8R8_UNORM,
+ PIPE_FORMAT_B5G6R5_UNORM
};
- uint i;
- for (i = 0; i < Elements(colorFormats); i++) {
- if (screen->is_format_supported( screen, colorFormats[i], target, tex_usage, geom_flags )) {
- return colorFormats[i];
- }
- }
- return PIPE_FORMAT_NONE;
+ return find_supported_format(screen, colorFormats, Elements(colorFormats),
+ target, sample_count, tex_usage, geom_flags);
}
+
/**
- * Search list of formats for first RGBA format with >8 bits/channel.
+ * Find an RGB format supported by the context/winsys.
*/
static enum pipe_format
-default_deep_rgba_format(struct pipe_screen *screen,
- enum pipe_texture_target target,
- unsigned tex_usage,
- unsigned geom_flags)
+default_rgb_format(struct pipe_screen *screen,
+ enum pipe_texture_target target,
+ unsigned sample_count,
+ unsigned tex_usage,
+ unsigned geom_flags)
{
- if (screen->is_format_supported(screen, PIPE_FORMAT_R16G16B16A16_SNORM, target, tex_usage, geom_flags)) {
- return PIPE_FORMAT_R16G16B16A16_SNORM;
- }
- if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET)
- return default_rgba_format(screen, target, tex_usage, geom_flags);
- else
- return PIPE_FORMAT_NONE;
+ 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, geom_flags);
}
-
/**
- * Find an Z format supported by the context/winsys.
+ * Find an sRGBA format supported by the context/winsys.
*/
static enum pipe_format
-default_depth_format(struct pipe_screen *screen,
- enum pipe_texture_target target,
- unsigned tex_usage,
- unsigned geom_flags)
+default_srgba_format(struct pipe_screen *screen,
+ enum pipe_texture_target target,
+ unsigned sample_count,
+ unsigned tex_usage,
+ unsigned geom_flags)
{
- static const enum pipe_format zFormats[] = {
- PIPE_FORMAT_Z16_UNORM,
- PIPE_FORMAT_Z32_UNORM,
- PIPE_FORMAT_S8Z24_UNORM,
- PIPE_FORMAT_Z24S8_UNORM
+ static const enum pipe_format colorFormats[] = {
+ PIPE_FORMAT_B8G8R8A8_SRGB,
+ PIPE_FORMAT_A8R8G8B8_SRGB,
+ PIPE_FORMAT_A8B8G8R8_SRGB,
};
- uint i;
- for (i = 0; i < Elements(zFormats); i++) {
- if (screen->is_format_supported( screen, zFormats[i], target, tex_usage, geom_flags )) {
- return zFormats[i];
- }
- }
- return PIPE_FORMAT_NONE;
+ return find_supported_format(screen, colorFormats, Elements(colorFormats),
+ target, sample_count, tex_usage, geom_flags);
}
/**
* 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 tex_usage either PIPE_TEXTURE_USAGE_RENDER_TARGET
- * or PIPE_TEXTURE_USAGE_SAMPLER
+ * \param bindings bitmask of PIPE_BIND_x flags.
*/
enum pipe_format
-st_choose_format(struct pipe_context *pipe, GLenum internalFormat,
- enum pipe_texture_target target, unsigned tex_usage)
+st_choose_format(struct pipe_screen *screen, GLenum internalFormat,
+ enum pipe_texture_target target, unsigned sample_count,
+ unsigned bindings)
{
- struct pipe_screen *screen = pipe->screen;
- unsigned geom_flags = 0;
+ unsigned geom_flags = 0; /* we don't care about POT vs. NPOT here, yet */
switch (internalFormat) {
case 4:
case GL_RGBA:
- case GL_COMPRESSED_RGBA:
- case 3:
- case GL_RGB:
- case GL_COMPRESSED_RGB:
case GL_RGBA8:
case GL_RGB10_A2:
case GL_RGBA12:
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ return default_rgba_format( screen, target, sample_count, bindings,
+ geom_flags );
+ case 3:
+ case GL_RGB:
+ return default_rgb_format( screen, target, sample_count, bindings,
+ geom_flags );
case GL_RGBA16:
- if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET)
- return default_deep_rgba_format( screen, target, tex_usage, geom_flags );
- else
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ return default_rgba_format( screen, target, sample_count, bindings,
+ geom_flags );
case GL_RGBA4:
case GL_RGBA2:
- if (screen->is_format_supported( screen, PIPE_FORMAT_A4R4G4B4_UNORM, target, tex_usage, geom_flags ))
- return PIPE_FORMAT_A4R4G4B4_UNORM;
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ if (screen->is_format_supported( screen, PIPE_FORMAT_B4G4R4A4_UNORM,
+ target, sample_count, bindings,
+ geom_flags ))
+ return PIPE_FORMAT_B4G4R4A4_UNORM;
+ return default_rgba_format( screen, target, sample_count, bindings,
+ geom_flags );
case GL_RGB5_A1:
- if (screen->is_format_supported( screen, PIPE_FORMAT_A1R5G5B5_UNORM, target, tex_usage, geom_flags ))
- return PIPE_FORMAT_A1R5G5B5_UNORM;
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ if (screen->is_format_supported( screen, PIPE_FORMAT_B5G5R5A1_UNORM,
+ target, sample_count, bindings,
+ geom_flags ))
+ return PIPE_FORMAT_B5G5R5A1_UNORM;
+ return default_rgba_format( screen, target, sample_count, bindings,
+ geom_flags );
case GL_RGB8:
case GL_RGB10:
case GL_RGB12:
case GL_RGB16:
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ return default_rgb_format( screen, target, sample_count, bindings,
+ geom_flags );
case GL_RGB5:
case GL_RGB4:
case GL_R3_G3_B2:
- if (screen->is_format_supported( screen, PIPE_FORMAT_R5G6B5_UNORM, target, tex_usage, geom_flags ))
- return PIPE_FORMAT_R5G6B5_UNORM;
- if (screen->is_format_supported( screen, PIPE_FORMAT_A1R5G5B5_UNORM, target, tex_usage, geom_flags ))
- return PIPE_FORMAT_A1R5G5B5_UNORM;
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ if (screen->is_format_supported( screen, PIPE_FORMAT_B5G6R5_UNORM,
+ target, sample_count, bindings,
+ geom_flags ))
+ return PIPE_FORMAT_B5G6R5_UNORM;
+ if (screen->is_format_supported( screen, PIPE_FORMAT_B5G5R5A1_UNORM,
+ target, sample_count, bindings,
+ geom_flags ))
+ return PIPE_FORMAT_B5G5R5A1_UNORM;
+ return default_rgba_format( screen, target, sample_count, bindings,
+ geom_flags );
case GL_ALPHA:
case GL_ALPHA4:
case GL_ALPHA12:
case GL_ALPHA16:
case GL_COMPRESSED_ALPHA:
- if (screen->is_format_supported( screen, PIPE_FORMAT_A8_UNORM, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported( screen, PIPE_FORMAT_A8_UNORM, target,
+ sample_count, bindings, geom_flags ))
return PIPE_FORMAT_A8_UNORM;
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ return default_rgba_format( screen, target, sample_count, bindings,
+ geom_flags );
case 1:
case GL_LUMINANCE:
case GL_LUMINANCE12:
case GL_LUMINANCE16:
case GL_COMPRESSED_LUMINANCE:
- if (screen->is_format_supported( screen, PIPE_FORMAT_L8_UNORM, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported( screen, PIPE_FORMAT_L8_UNORM, target,
+ sample_count, bindings, geom_flags ))
return PIPE_FORMAT_L8_UNORM;
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ return default_rgba_format( screen, target, sample_count, bindings,
+ geom_flags );
case 2:
case GL_LUMINANCE_ALPHA:
case GL_LUMINANCE12_ALPHA12:
case GL_LUMINANCE16_ALPHA16:
case GL_COMPRESSED_LUMINANCE_ALPHA:
- if (screen->is_format_supported( screen, PIPE_FORMAT_A8L8_UNORM, target, tex_usage, geom_flags ))
- return PIPE_FORMAT_A8L8_UNORM;
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ if (screen->is_format_supported( screen, PIPE_FORMAT_L8A8_UNORM, target,
+ sample_count, bindings, geom_flags ))
+ return PIPE_FORMAT_L8A8_UNORM;
+ return default_rgba_format( screen, target, sample_count, bindings,
+ geom_flags );
case GL_INTENSITY:
case GL_INTENSITY4:
case GL_INTENSITY12:
case GL_INTENSITY16:
case GL_COMPRESSED_INTENSITY:
- if (screen->is_format_supported( screen, PIPE_FORMAT_I8_UNORM, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported( screen, PIPE_FORMAT_I8_UNORM, target,
+ sample_count, bindings, geom_flags ))
return PIPE_FORMAT_I8_UNORM;
- return default_rgba_format( screen, target, tex_usage, geom_flags );
+ return default_rgba_format( screen, target, sample_count, bindings,
+ geom_flags );
case GL_YCBCR_MESA:
- if (screen->is_format_supported(screen, PIPE_FORMAT_YCBCR,
- target, tex_usage, geom_flags)) {
- return PIPE_FORMAT_YCBCR;
+ if (screen->is_format_supported(screen, PIPE_FORMAT_UYVY, target,
+ sample_count, bindings, geom_flags)) {
+ return PIPE_FORMAT_UYVY;
}
- if (screen->is_format_supported(screen, PIPE_FORMAT_YCBCR_REV,
- target, tex_usage, geom_flags)) {
- return PIPE_FORMAT_YCBCR_REV;
+ if (screen->is_format_supported(screen, PIPE_FORMAT_YUYV, target,
+ sample_count, bindings, geom_flags)) {
+ return PIPE_FORMAT_YUYV;
}
return PIPE_FORMAT_NONE;
+ case GL_COMPRESSED_RED:
+ case GL_COMPRESSED_RG:
+ 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,
+ geom_flags))
+ return PIPE_FORMAT_DXT1_RGB;
+ else
+ return default_rgb_format(screen, target, sample_count, bindings,
+ geom_flags);
+
+ 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,
+ geom_flags))
+ return PIPE_FORMAT_DXT3_RGBA;
+ else
+ return default_rgba_format(screen, target, sample_count, bindings,
+ geom_flags);
+
case GL_RGB_S3TC:
case GL_RGB4_S3TC:
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
- return PIPE_FORMAT_DXT1_RGB;
+ if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGB,
+ target, sample_count, bindings,
+ geom_flags))
+ return PIPE_FORMAT_DXT1_RGB;
+ else
+ return PIPE_FORMAT_NONE;
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
- return PIPE_FORMAT_DXT1_RGBA;
+ if (screen->is_format_supported(screen, PIPE_FORMAT_DXT1_RGBA,
+ target, sample_count, bindings,
+ geom_flags))
+ 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:
- return PIPE_FORMAT_DXT3_RGBA;
+ if (screen->is_format_supported(screen, PIPE_FORMAT_DXT3_RGBA,
+ target, sample_count, bindings,
+ geom_flags))
+ return PIPE_FORMAT_DXT3_RGBA;
+ else
+ return PIPE_FORMAT_NONE;
case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
- return PIPE_FORMAT_DXT5_RGBA;
+ if (screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA,
+ target, sample_count, bindings,
+ geom_flags))
+ return PIPE_FORMAT_DXT5_RGBA;
+ else
+ return PIPE_FORMAT_NONE;
#if 0
case GL_COMPRESSED_RGB_FXT1_3DFX:
#endif
case GL_DEPTH_COMPONENT16:
- if (screen->is_format_supported( screen, PIPE_FORMAT_Z16_UNORM, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported(screen, PIPE_FORMAT_Z16_UNORM, target,
+ sample_count, bindings, geom_flags))
return PIPE_FORMAT_Z16_UNORM;
/* fall-through */
case GL_DEPTH_COMPONENT24:
- if (screen->is_format_supported( screen, PIPE_FORMAT_S8Z24_UNORM, target, tex_usage, geom_flags ))
- return PIPE_FORMAT_S8Z24_UNORM;
- if (screen->is_format_supported( screen, PIPE_FORMAT_Z24S8_UNORM, target, tex_usage, geom_flags ))
- return PIPE_FORMAT_Z24S8_UNORM;
+ if (screen->is_format_supported(screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
+ target, sample_count, bindings, geom_flags))
+ return PIPE_FORMAT_Z24_UNORM_S8_USCALED;
+ if (screen->is_format_supported(screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
+ target, sample_count, bindings, geom_flags))
+ return PIPE_FORMAT_S8_USCALED_Z24_UNORM;
/* fall-through */
case GL_DEPTH_COMPONENT32:
- if (screen->is_format_supported( screen, PIPE_FORMAT_Z32_UNORM, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_UNORM, target,
+ sample_count, bindings, geom_flags))
return PIPE_FORMAT_Z32_UNORM;
/* fall-through */
case GL_DEPTH_COMPONENT:
- return default_depth_format( screen, target, tex_usage, geom_flags );
+ {
+ static const enum pipe_format formats[] = {
+ PIPE_FORMAT_Z16_UNORM,
+ PIPE_FORMAT_Z32_UNORM,
+ PIPE_FORMAT_Z24_UNORM_S8_USCALED,
+ PIPE_FORMAT_S8_USCALED_Z24_UNORM
+ };
+ return find_supported_format(screen, formats, Elements(formats),
+ target, sample_count, bindings, geom_flags);
+ }
case GL_STENCIL_INDEX:
case GL_STENCIL_INDEX1_EXT:
case GL_STENCIL_INDEX4_EXT:
case GL_STENCIL_INDEX8_EXT:
case GL_STENCIL_INDEX16_EXT:
- if (screen->is_format_supported( screen, PIPE_FORMAT_S8_UNORM, target, tex_usage, geom_flags ))
- return PIPE_FORMAT_S8_UNORM;
- if (screen->is_format_supported( screen, PIPE_FORMAT_S8Z24_UNORM, target, tex_usage, geom_flags ))
- return PIPE_FORMAT_S8Z24_UNORM;
- if (screen->is_format_supported( screen, PIPE_FORMAT_Z24S8_UNORM, target, tex_usage, geom_flags ))
- return PIPE_FORMAT_Z24S8_UNORM;
- return PIPE_FORMAT_NONE;
+ {
+ 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, geom_flags);
+ }
case GL_DEPTH_STENCIL_EXT:
case GL_DEPTH24_STENCIL8_EXT:
- if (screen->is_format_supported( screen, PIPE_FORMAT_S8Z24_UNORM, target, tex_usage, geom_flags ))
- return PIPE_FORMAT_S8Z24_UNORM;
- if (screen->is_format_supported( screen, PIPE_FORMAT_Z24S8_UNORM, target, tex_usage, geom_flags ))
- return PIPE_FORMAT_Z24S8_UNORM;
- return PIPE_FORMAT_NONE;
+ {
+ 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, geom_flags);
+ }
case GL_SRGB_EXT:
case GL_SRGB8_EXT:
case GL_COMPRESSED_SRGB_ALPHA_EXT:
case GL_SRGB_ALPHA_EXT:
case GL_SRGB8_ALPHA8_EXT:
- return default_srgba_format( screen, target, tex_usage, geom_flags );
+ return default_srgba_format( screen, target, sample_count, bindings,
+ geom_flags );
case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
return PIPE_FORMAT_DXT1_SRGB;
case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_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_A8L8_SRGB, target, tex_usage, geom_flags ))
- return PIPE_FORMAT_A8L8_SRGB;
- return default_srgba_format( screen, target, tex_usage, geom_flags );
+ if (screen->is_format_supported(screen, PIPE_FORMAT_L8A8_SRGB, target,
+ sample_count, bindings, geom_flags))
+ return PIPE_FORMAT_L8A8_SRGB;
+ return default_srgba_format( screen, target, sample_count, bindings,
+ geom_flags );
case GL_SLUMINANCE_EXT:
case GL_SLUMINANCE8_EXT:
- if (screen->is_format_supported( screen, PIPE_FORMAT_L8_SRGB, target, tex_usage, geom_flags ))
+ if (screen->is_format_supported(screen, PIPE_FORMAT_L8_SRGB, target,
+ sample_count, bindings, geom_flags))
return PIPE_FORMAT_L8_SRGB;
- return default_srgba_format( screen, target, tex_usage, geom_flags );
+ return default_srgba_format( screen, target, sample_count, bindings,
+ geom_flags );
+
+ case GL_RED:
+ case GL_R8:
+ if (screen->is_format_supported(screen, PIPE_FORMAT_R8_UNORM, target,
+ sample_count, bindings, geom_flags))
+ 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, geom_flags))
+ return PIPE_FORMAT_R8G8_UNORM;
+ return PIPE_FORMAT_NONE;
- default:
+ case GL_R16:
+ if (screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM, target,
+ sample_count, bindings, geom_flags))
+ 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, geom_flags))
+ return PIPE_FORMAT_R16G16_UNORM;
+ return PIPE_FORMAT_NONE;
+
+ case GL_COMPRESSED_RED_RGTC1:
+ if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_UNORM, target,
+ sample_count, bindings, geom_flags))
+ return PIPE_FORMAT_RGTC1_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, geom_flags))
+ return PIPE_FORMAT_RGTC1_SNORM;
+ return PIPE_FORMAT_NONE;
+
+ case GL_COMPRESSED_RG_RGTC2:
+ if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_UNORM, target,
+ sample_count, bindings, geom_flags))
+ return PIPE_FORMAT_RGTC2_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, geom_flags))
+ return PIPE_FORMAT_RGTC2_SNORM;
+ return PIPE_FORMAT_NONE;
-static GLboolean
-is_depth_or_stencil_format(GLenum internalFormat)
-{
- switch (internalFormat) {
- case GL_DEPTH_COMPONENT:
- case GL_DEPTH_COMPONENT16:
- case GL_DEPTH_COMPONENT24:
- case GL_DEPTH_COMPONENT32:
- case GL_STENCIL_INDEX:
- case GL_STENCIL_INDEX1_EXT:
- case GL_STENCIL_INDEX4_EXT:
- case GL_STENCIL_INDEX8_EXT:
- case GL_STENCIL_INDEX16_EXT:
- case GL_DEPTH_STENCIL_EXT:
- case GL_DEPTH24_STENCIL8_EXT:
- return GL_TRUE;
default:
- return GL_FALSE;
+ 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_context *pipe, GLenum internalFormat)
+st_choose_renderbuffer_format(struct pipe_screen *screen,
+ GLenum internalFormat, unsigned sample_count)
{
uint usage;
- if (is_depth_or_stencil_format(internalFormat))
- usage = PIPE_TEXTURE_USAGE_DEPTH_STENCIL;
+ if (_mesa_is_depth_or_stencil_format(internalFormat))
+ usage = PIPE_BIND_DEPTH_STENCIL;
else
- usage = PIPE_TEXTURE_USAGE_RENDER_TARGET;
- return st_choose_format(pipe, internalFormat, PIPE_TEXTURE_2D, usage);
-}
-
-
-static const struct gl_texture_format *
-translate_gallium_format_to_mesa_format(enum pipe_format format)
-{
- switch (format) {
- case PIPE_FORMAT_A8R8G8B8_UNORM:
- return &_mesa_texformat_argb8888;
- case PIPE_FORMAT_A1R5G5B5_UNORM:
- return &_mesa_texformat_argb1555;
- case PIPE_FORMAT_A4R4G4B4_UNORM:
- return &_mesa_texformat_argb4444;
- case PIPE_FORMAT_R5G6B5_UNORM:
- return &_mesa_texformat_rgb565;
- case PIPE_FORMAT_A8L8_UNORM:
- return &_mesa_texformat_al88;
- case PIPE_FORMAT_A8_UNORM:
- return &_mesa_texformat_a8;
- case PIPE_FORMAT_L8_UNORM:
- return &_mesa_texformat_l8;
- case PIPE_FORMAT_I8_UNORM:
- return &_mesa_texformat_i8;
- case PIPE_FORMAT_Z16_UNORM:
- return &_mesa_texformat_z16;
- case PIPE_FORMAT_Z32_UNORM:
- return &_mesa_texformat_z32;
- case PIPE_FORMAT_Z24S8_UNORM:
- return &_mesa_texformat_z24_s8;
- case PIPE_FORMAT_S8Z24_UNORM:
- return &_mesa_texformat_s8_z24;
- case PIPE_FORMAT_YCBCR:
- return &_mesa_texformat_ycbcr;
- case PIPE_FORMAT_YCBCR_REV:
- return &_mesa_texformat_ycbcr_rev;
-#if FEATURE_texture_s3tc
- case PIPE_FORMAT_DXT1_RGB:
- return &_mesa_texformat_rgb_dxt1;
- case PIPE_FORMAT_DXT1_RGBA:
- return &_mesa_texformat_rgba_dxt1;
- case PIPE_FORMAT_DXT3_RGBA:
- return &_mesa_texformat_rgba_dxt3;
- case PIPE_FORMAT_DXT5_RGBA:
- return &_mesa_texformat_rgba_dxt5;
-#if FEATURE_EXT_texture_sRGB
- case PIPE_FORMAT_DXT1_SRGB:
- return &_mesa_texformat_srgb_dxt1;
- case PIPE_FORMAT_DXT1_SRGBA:
- return &_mesa_texformat_srgba_dxt1;
- case PIPE_FORMAT_DXT3_SRGBA:
- return &_mesa_texformat_srgba_dxt3;
- case PIPE_FORMAT_DXT5_SRGBA:
- return &_mesa_texformat_srgba_dxt5;
-#endif
-#endif
-#if FEATURE_EXT_texture_sRGB
- case PIPE_FORMAT_A8L8_SRGB:
- return &_mesa_texformat_sla8;
- case PIPE_FORMAT_L8_SRGB:
- return &_mesa_texformat_sl8;
- case PIPE_FORMAT_R8G8B8_SRGB:
- return &_mesa_texformat_srgb8;
- case PIPE_FORMAT_R8G8B8A8_SRGB:
- return &_mesa_texformat_srgba8;
- case PIPE_FORMAT_A8R8G8B8_SRGB:
- return &_mesa_texformat_sargb8;
-#endif
- /* XXX add additional cases */
- default:
- assert(0);
- return NULL;
- }
+ usage = PIPE_BIND_RENDER_TARGET;
+ return st_choose_format(screen, internalFormat, PIPE_TEXTURE_2D,
+ sample_count, usage);
}
/**
* Called via ctx->Driver.chooseTextureFormat().
*/
-const struct gl_texture_format *
-st_ChooseTextureFormat(GLcontext *ctx, GLint internalFormat,
- GLenum format, GLenum type)
+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;
- pFormat = st_choose_format(ctx->st->pipe, internalFormat, PIPE_TEXTURE_2D,
- PIPE_TEXTURE_USAGE_SAMPLER);
- if (pFormat == PIPE_FORMAT_NONE)
- return NULL;
+ /* 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 translate_gallium_format_to_mesa_format(pFormat);
+ return st_pipe_format_to_mesa_format(pFormat);
}
+gl_format
+st_ChooseTextureFormat(struct gl_context *ctx, GLint internalFormat,
+ GLenum format, GLenum type)
+{
+ return st_ChooseTextureFormat_renderable(ctx, internalFormat,
+ format, type, GL_TRUE);
+}
/**
* Test if a gallium format is equivalent to a GL format/type.
st_equal_formats(enum pipe_format pFormat, GLenum format, GLenum type)
{
switch (pFormat) {
- case PIPE_FORMAT_R8G8B8A8_UNORM:
+ case PIPE_FORMAT_A8B8G8R8_UNORM:
return format == GL_RGBA && type == GL_UNSIGNED_BYTE;
- case PIPE_FORMAT_B8G8R8A8_UNORM:
+ case PIPE_FORMAT_A8R8G8B8_UNORM:
return format == GL_BGRA && type == GL_UNSIGNED_BYTE;
- case PIPE_FORMAT_R5G6B5_UNORM:
+ 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;
+}