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virglrenderer/src/vrend_formats.c

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/**************************************************************************
*
* Copyright (C) 2014 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include <epoxy/gl.h>
#include "vrend_renderer.h"
#include "util/u_memory.h"
#include "util/u_format.h"
#define SWIZZLE_INVALID 0xff
#define NO_SWIZZLE { SWIZZLE_INVALID, SWIZZLE_INVALID, SWIZZLE_INVALID, SWIZZLE_INVALID }
#define RRR1_SWIZZLE { PIPE_SWIZZLE_RED, PIPE_SWIZZLE_RED, PIPE_SWIZZLE_RED, PIPE_SWIZZLE_ONE }
#define RGB1_SWIZZLE { PIPE_SWIZZLE_RED, PIPE_SWIZZLE_GREEN, PIPE_SWIZZLE_BLUE, PIPE_SWIZZLE_ONE }
#define BGR1_SWIZZLE { PIPE_SWIZZLE_BLUE, PIPE_SWIZZLE_GREEN, PIPE_SWIZZLE_RED, PIPE_SWIZZLE_ONE }
#define BGRA_SWIZZLE { PIPE_SWIZZLE_BLUE, PIPE_SWIZZLE_GREEN, PIPE_SWIZZLE_RED, PIPE_SWIZZLE_ALPHA }
#ifdef __GNUC__
/* The warning missing-field-initializers is misleading: If at least one field
* is initialized, then the un-initialized fields will be filled with zero.
* Silencing the warning by manually adding the zeros that the compiler will add
* anyway doesn't improve the code, and initializing the files by using a named
* notation will make it worse, because then he remaining fields truely be
* un-initialized.
*/
#ifdef __clang__
#pragma clang diagnostic ignored "-Wmissing-field-initializers"
#else
#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
#endif
#endif
/* fill the format table */
static struct vrend_format_table base_rgba_formats[] =
{
{ VIRGL_FORMAT_R8G8B8X8_UNORM, GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, RGB1_SWIZZLE },
{ VIRGL_FORMAT_R8G8B8A8_UNORM, GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_A8R8G8B8_UNORM, GL_RGBA8, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, NO_SWIZZLE },
{ VIRGL_FORMAT_X8R8G8B8_UNORM, GL_RGBA8, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, NO_SWIZZLE },
{ VIRGL_FORMAT_A8B8G8R8_UNORM, GL_RGBA8, GL_ABGR_EXT, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_B4G4R4X4_UNORM, GL_RGBA4, GL_BGRA, GL_UNSIGNED_SHORT_4_4_4_4_REV, RGB1_SWIZZLE },
{ VIRGL_FORMAT_A4B4G4R4_UNORM, GL_RGBA4, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, NO_SWIZZLE },
{ VIRGL_FORMAT_B5G5R5X1_UNORM, GL_RGB5_A1, GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5_REV, RGB1_SWIZZLE },
{ VIRGL_FORMAT_B5G6R5_UNORM, GL_RGB565, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, NO_SWIZZLE },
{ VIRGL_FORMAT_B2G3R3_UNORM, GL_R3_G3_B2, GL_RGB, GL_UNSIGNED_BYTE_3_3_2, NO_SWIZZLE },
{ VIRGL_FORMAT_R16G16B16X16_UNORM, GL_RGBA16, GL_RGBA, GL_UNSIGNED_SHORT, RGB1_SWIZZLE },
{ VIRGL_FORMAT_R16G16B16A16_UNORM, GL_RGBA16, GL_RGBA, GL_UNSIGNED_SHORT, NO_SWIZZLE },
};
static struct vrend_format_table gl_base_rgba_formats[] =
{
{ VIRGL_FORMAT_B4G4R4A4_UNORM, GL_RGBA4, GL_BGRA, GL_UNSIGNED_SHORT_4_4_4_4_REV, NO_SWIZZLE },
{ VIRGL_FORMAT_B5G5R5A1_UNORM, GL_RGB5_A1, GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5_REV, NO_SWIZZLE },
};
static struct vrend_format_table base_depth_formats[] =
{
{ VIRGL_FORMAT_Z16_UNORM, GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, NO_SWIZZLE },
{ VIRGL_FORMAT_Z32_UNORM, GL_DEPTH_COMPONENT32, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NO_SWIZZLE },
{ VIRGL_FORMAT_S8_UINT_Z24_UNORM, GL_DEPTH24_STENCIL8_EXT, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, NO_SWIZZLE },
{ VIRGL_FORMAT_Z24X8_UNORM, GL_DEPTH_COMPONENT24, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NO_SWIZZLE },
{ VIRGL_FORMAT_Z32_FLOAT, GL_DEPTH_COMPONENT32F, GL_DEPTH_COMPONENT, GL_FLOAT, NO_SWIZZLE },
/* this is probably a separate format */
{ VIRGL_FORMAT_Z32_FLOAT_S8X24_UINT, GL_DEPTH32F_STENCIL8, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV, NO_SWIZZLE },
{ VIRGL_FORMAT_X24S8_UINT, GL_STENCIL_INDEX8, GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, NO_SWIZZLE },
};
static struct vrend_format_table base_la_formats[] = {
{ VIRGL_FORMAT_A8_UNORM, GL_ALPHA8, GL_ALPHA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_L8_UNORM, GL_R8, GL_RED, GL_UNSIGNED_BYTE, RRR1_SWIZZLE },
{ VIRGL_FORMAT_A16_UNORM, GL_ALPHA16, GL_ALPHA, GL_UNSIGNED_SHORT, NO_SWIZZLE },
{ VIRGL_FORMAT_L16_UNORM, GL_R16, GL_RED, GL_UNSIGNED_SHORT, RRR1_SWIZZLE },
};
static struct vrend_format_table rg_base_formats[] = {
{ VIRGL_FORMAT_R8_UNORM, GL_R8, GL_RED, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_R8G8_UNORM, GL_RG8, GL_RG, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_R16_UNORM, GL_R16, GL_RED, GL_UNSIGNED_SHORT, NO_SWIZZLE },
{ VIRGL_FORMAT_R16G16_UNORM, GL_RG16, GL_RG, GL_UNSIGNED_SHORT, NO_SWIZZLE },
};
static struct vrend_format_table integer_base_formats[] = {
{ VIRGL_FORMAT_R8G8B8A8_UINT, GL_RGBA8UI, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_R8G8B8A8_SINT, GL_RGBA8I, GL_RGBA_INTEGER, GL_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_R16G16B16A16_UINT, GL_RGBA16UI, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, NO_SWIZZLE },
{ VIRGL_FORMAT_R16G16B16A16_SINT, GL_RGBA16I, GL_RGBA_INTEGER, GL_SHORT, NO_SWIZZLE },
{ VIRGL_FORMAT_R32G32B32A32_UINT, GL_RGBA32UI, GL_RGBA_INTEGER, GL_UNSIGNED_INT, NO_SWIZZLE },
{ VIRGL_FORMAT_R32G32B32A32_SINT, GL_RGBA32I, GL_RGBA_INTEGER, GL_INT, NO_SWIZZLE },
};
static struct vrend_format_table integer_3comp_formats[] = {
{ VIRGL_FORMAT_R8G8B8X8_UINT, GL_RGBA8UI, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, RGB1_SWIZZLE },
{ VIRGL_FORMAT_R8G8B8X8_SINT, GL_RGBA8I, GL_RGBA_INTEGER, GL_BYTE, RGB1_SWIZZLE },
{ VIRGL_FORMAT_R16G16B16X16_UINT, GL_RGBA16UI, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, RGB1_SWIZZLE },
{ VIRGL_FORMAT_R16G16B16X16_SINT, GL_RGBA16I, GL_RGBA_INTEGER, GL_SHORT, RGB1_SWIZZLE },
{ VIRGL_FORMAT_R32G32B32_UINT, GL_RGB32UI, GL_RGB_INTEGER, GL_UNSIGNED_INT, NO_SWIZZLE },
{ VIRGL_FORMAT_R32G32B32_SINT, GL_RGB32I, GL_RGB_INTEGER, GL_INT, NO_SWIZZLE },
};
static struct vrend_format_table float_base_formats[] = {
{ VIRGL_FORMAT_R16G16B16A16_FLOAT, GL_RGBA16F, GL_RGBA, GL_HALF_FLOAT, NO_SWIZZLE },
{ VIRGL_FORMAT_R32G32B32A32_FLOAT, GL_RGBA32F, GL_RGBA, GL_FLOAT, NO_SWIZZLE },
};
static struct vrend_format_table float_la_formats[] = {
{ VIRGL_FORMAT_A16_FLOAT, GL_ALPHA16F_ARB, GL_ALPHA, GL_HALF_FLOAT, NO_SWIZZLE },
{ VIRGL_FORMAT_L16_FLOAT, GL_R16F, GL_RED, GL_HALF_FLOAT, RRR1_SWIZZLE },
{ VIRGL_FORMAT_L16A16_FLOAT, GL_LUMINANCE_ALPHA16F_ARB, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT, NO_SWIZZLE },
{ VIRGL_FORMAT_A32_FLOAT, GL_ALPHA32F_ARB, GL_ALPHA, GL_FLOAT, NO_SWIZZLE },
{ VIRGL_FORMAT_L32_FLOAT, GL_R32F, GL_RED, GL_FLOAT, RRR1_SWIZZLE },
{ VIRGL_FORMAT_L32A32_FLOAT, GL_LUMINANCE_ALPHA32F_ARB, GL_LUMINANCE_ALPHA, GL_FLOAT, NO_SWIZZLE },
};
static struct vrend_format_table integer_rg_formats[] = {
{ VIRGL_FORMAT_R8_UINT, GL_R8UI, GL_RED_INTEGER, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_R8G8_UINT, GL_RG8UI, GL_RG_INTEGER, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_R8_SINT, GL_R8I, GL_RED_INTEGER, GL_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_R8G8_SINT, GL_RG8I, GL_RG_INTEGER, GL_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_R16_UINT, GL_R16UI, GL_RED_INTEGER, GL_UNSIGNED_SHORT, NO_SWIZZLE },
{ VIRGL_FORMAT_R16G16_UINT, GL_RG16UI, GL_RG_INTEGER, GL_UNSIGNED_SHORT, NO_SWIZZLE },
{ VIRGL_FORMAT_R16_SINT, GL_R16I, GL_RED_INTEGER, GL_SHORT, NO_SWIZZLE },
{ VIRGL_FORMAT_R16G16_SINT, GL_RG16I, GL_RG_INTEGER, GL_SHORT, NO_SWIZZLE },
{ VIRGL_FORMAT_R32_UINT, GL_R32UI, GL_RED_INTEGER, GL_UNSIGNED_INT, NO_SWIZZLE },
{ VIRGL_FORMAT_R32G32_UINT, GL_RG32UI, GL_RG_INTEGER, GL_UNSIGNED_INT, NO_SWIZZLE },
{ VIRGL_FORMAT_R32_SINT, GL_R32I, GL_RED_INTEGER, GL_INT, NO_SWIZZLE },
{ VIRGL_FORMAT_R32G32_SINT, GL_RG32I, GL_RG_INTEGER, GL_INT, NO_SWIZZLE },
};
static struct vrend_format_table float_rg_formats[] = {
{ VIRGL_FORMAT_R16_FLOAT, GL_R16F, GL_RED, GL_HALF_FLOAT, NO_SWIZZLE },
{ VIRGL_FORMAT_R16G16_FLOAT, GL_RG16F, GL_RG, GL_HALF_FLOAT, NO_SWIZZLE },
{ VIRGL_FORMAT_R32_FLOAT, GL_R32F, GL_RED, GL_FLOAT, NO_SWIZZLE },
{ VIRGL_FORMAT_R32G32_FLOAT, GL_RG32F, GL_RG, GL_FLOAT, NO_SWIZZLE },
};
static struct vrend_format_table float_3comp_formats[] = {
{ VIRGL_FORMAT_R16G16B16X16_FLOAT, GL_RGBA16F, GL_RGBA, GL_HALF_FLOAT, RGB1_SWIZZLE },
{ VIRGL_FORMAT_R32G32B32_FLOAT, GL_RGB32F, GL_RGB, GL_FLOAT, NO_SWIZZLE },
};
static struct vrend_format_table integer_la_formats[] = {
{ VIRGL_FORMAT_A8_UINT, GL_ALPHA8UI_EXT, GL_ALPHA_INTEGER, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_L8_UINT, GL_R8UI, GL_RED_INTEGER, GL_UNSIGNED_BYTE, RRR1_SWIZZLE },
{ VIRGL_FORMAT_L8A8_UINT, GL_LUMINANCE_ALPHA8UI_EXT, GL_LUMINANCE_ALPHA_INTEGER_EXT, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_A8_SINT, GL_ALPHA8I_EXT, GL_ALPHA_INTEGER, GL_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_L8_SINT, GL_R8I, GL_RED_INTEGER, GL_BYTE, RRR1_SWIZZLE },
{ VIRGL_FORMAT_L8A8_SINT, GL_LUMINANCE_ALPHA8I_EXT, GL_LUMINANCE_ALPHA_INTEGER_EXT, GL_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_A16_UINT, GL_ALPHA16UI_EXT, GL_ALPHA_INTEGER, GL_UNSIGNED_SHORT, NO_SWIZZLE },
{ VIRGL_FORMAT_L16_UINT, GL_R16UI, GL_RED_INTEGER, GL_UNSIGNED_SHORT, RRR1_SWIZZLE },
{ VIRGL_FORMAT_L16A16_UINT, GL_LUMINANCE_ALPHA16UI_EXT, GL_LUMINANCE_ALPHA_INTEGER_EXT, GL_UNSIGNED_SHORT, NO_SWIZZLE },
{ VIRGL_FORMAT_A16_SINT, GL_ALPHA16I_EXT, GL_ALPHA_INTEGER, GL_SHORT, NO_SWIZZLE },
{ VIRGL_FORMAT_L16_SINT, GL_R16I, GL_RED_INTEGER, GL_SHORT, RRR1_SWIZZLE },
{ VIRGL_FORMAT_L16A16_SINT, GL_LUMINANCE_ALPHA16I_EXT, GL_LUMINANCE_ALPHA_INTEGER_EXT, GL_SHORT, NO_SWIZZLE },
{ VIRGL_FORMAT_A32_UINT, GL_ALPHA32UI_EXT, GL_ALPHA_INTEGER, GL_UNSIGNED_INT, NO_SWIZZLE },
{ VIRGL_FORMAT_L32_UINT, GL_R32UI, GL_RED_INTEGER, GL_UNSIGNED_INT, RRR1_SWIZZLE },
{ VIRGL_FORMAT_L32A32_UINT, GL_LUMINANCE_ALPHA32UI_EXT, GL_LUMINANCE_ALPHA_INTEGER_EXT, GL_UNSIGNED_INT, NO_SWIZZLE },
{ VIRGL_FORMAT_A32_SINT, GL_ALPHA32I_EXT, GL_ALPHA_INTEGER, GL_INT, NO_SWIZZLE },
{ VIRGL_FORMAT_L32_SINT, GL_R32I, GL_RED_INTEGER, GL_INT, RRR1_SWIZZLE },
{ VIRGL_FORMAT_L32A32_SINT, GL_LUMINANCE_ALPHA32I_EXT, GL_LUMINANCE_ALPHA_INTEGER_EXT, GL_INT, NO_SWIZZLE },
};
static struct vrend_format_table snorm_formats[] = {
{ VIRGL_FORMAT_R8_SNORM, GL_R8_SNORM, GL_RED, GL_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_R8G8_SNORM, GL_RG8_SNORM, GL_RG, GL_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_R8G8B8A8_SNORM, GL_RGBA8_SNORM, GL_RGBA, GL_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_R8G8B8X8_SNORM, GL_RGBA8_SNORM, GL_RGBA, GL_BYTE, RGB1_SWIZZLE },
{ VIRGL_FORMAT_R16_SNORM, GL_R16_SNORM, GL_RED, GL_SHORT, NO_SWIZZLE },
{ VIRGL_FORMAT_R16G16_SNORM, GL_RG16_SNORM, GL_RG, GL_SHORT, NO_SWIZZLE },
{ VIRGL_FORMAT_R16G16B16A16_SNORM, GL_RGBA16_SNORM, GL_RGBA, GL_SHORT, NO_SWIZZLE },
{ VIRGL_FORMAT_R16G16B16X16_SNORM, GL_RGBA16_SNORM, GL_RGBA, GL_SHORT, RGB1_SWIZZLE },
};
static struct vrend_format_table snorm_la_formats[] = {
{ VIRGL_FORMAT_A8_SNORM, GL_ALPHA8_SNORM, GL_ALPHA, GL_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_L8_SNORM, GL_R8_SNORM, GL_RED, GL_BYTE, RRR1_SWIZZLE },
{ VIRGL_FORMAT_L8A8_SNORM, GL_LUMINANCE8_ALPHA8_SNORM, GL_LUMINANCE_ALPHA, GL_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_A16_SNORM, GL_ALPHA16_SNORM, GL_ALPHA, GL_SHORT, NO_SWIZZLE },
{ VIRGL_FORMAT_L16_SNORM, GL_R16_SNORM, GL_RED, GL_SHORT, RRR1_SWIZZLE },
{ VIRGL_FORMAT_L16A16_SNORM, GL_LUMINANCE16_ALPHA16_SNORM, GL_LUMINANCE_ALPHA, GL_SHORT, NO_SWIZZLE },
};
static struct vrend_format_table dxtn_formats[] = {
{ VIRGL_FORMAT_DXT1_RGB, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_RGB, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_DXT1_RGBA, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_DXT3_RGBA, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_DXT5_RGBA, GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
};
static struct vrend_format_table dxtn_srgb_formats[] = {
{ VIRGL_FORMAT_DXT1_SRGB, GL_COMPRESSED_SRGB_S3TC_DXT1_EXT, GL_RGB, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_DXT1_SRGBA, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_DXT3_SRGBA, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_DXT5_SRGBA, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
};
static struct vrend_format_table etc2_formats[] = {
{VIRGL_FORMAT_ETC2_RGB8, GL_COMPRESSED_RGB8_ETC2, GL_RGB, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ETC2_SRGB8, GL_COMPRESSED_SRGB8_ETC2, GL_RGB, GL_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ETC2_RGB8A1, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ETC2_SRGB8A1, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_RGBA, GL_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ETC2_RGBA8, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ETC2_SRGBA8, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, GL_RGBA, GL_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ETC2_R11_UNORM, GL_COMPRESSED_R11_EAC, GL_RED, GL_UNSIGNED_BYTE, NO_SWIZZLE},
{VIRGL_FORMAT_ETC2_R11_SNORM, GL_COMPRESSED_SIGNED_R11_EAC, GL_RED, GL_BYTE, NO_SWIZZLE},
{VIRGL_FORMAT_ETC2_RG11_UNORM, GL_COMPRESSED_RG11_EAC, GL_RG, GL_UNSIGNED_BYTE, NO_SWIZZLE},
{VIRGL_FORMAT_ETC2_RG11_SNORM, GL_COMPRESSED_SIGNED_RG11_EAC, GL_RG, GL_BYTE, NO_SWIZZLE},
};
static struct vrend_format_table astc_formats[] = {
{VIRGL_FORMAT_ASTC_4x4, GL_COMPRESSED_RGBA_ASTC_4x4, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_5x4, GL_COMPRESSED_RGBA_ASTC_5x4, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_5x5, GL_COMPRESSED_RGBA_ASTC_5x5, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_6x5, GL_COMPRESSED_RGBA_ASTC_6x5, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_6x6, GL_COMPRESSED_RGBA_ASTC_6x6, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_8x5, GL_COMPRESSED_RGBA_ASTC_8x5, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_8x6, GL_COMPRESSED_RGBA_ASTC_8x6, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_8x8, GL_COMPRESSED_RGBA_ASTC_8x8, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_10x5, GL_COMPRESSED_RGBA_ASTC_10x5, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_10x6, GL_COMPRESSED_RGBA_ASTC_10x6, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_10x8, GL_COMPRESSED_RGBA_ASTC_10x8, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_10x10, GL_COMPRESSED_RGBA_ASTC_10x10, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_12x10, GL_COMPRESSED_RGBA_ASTC_12x10, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_12x12, GL_COMPRESSED_RGBA_ASTC_12x12, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_4x4_SRGB, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4, GL_RGBA, GL_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_5x4_SRGB, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4, GL_RGBA, GL_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_5x5_SRGB, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5, GL_RGBA, GL_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_6x5_SRGB, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5, GL_RGBA, GL_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_6x6_SRGB, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6, GL_RGBA, GL_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_8x5_SRGB, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5, GL_RGBA, GL_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_8x6_SRGB, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6, GL_RGBA, GL_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_8x8_SRGB, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8, GL_RGBA, GL_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_10x5_SRGB, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5, GL_RGBA, GL_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_10x6_SRGB, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6, GL_RGBA, GL_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_10x8_SRGB, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8, GL_RGBA, GL_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_10x10_SRGB, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10, GL_RGBA, GL_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_12x10_SRGB, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10, GL_RGBA, GL_BYTE, NO_SWIZZLE },
{VIRGL_FORMAT_ASTC_12x12_SRGB, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12, GL_RGBA, GL_BYTE, NO_SWIZZLE },
};
static struct vrend_format_table rgtc_formats[] = {
{ VIRGL_FORMAT_RGTC1_UNORM, GL_COMPRESSED_RED_RGTC1, GL_RED, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_RGTC1_SNORM, GL_COMPRESSED_SIGNED_RED_RGTC1, GL_RED, GL_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_RGTC2_UNORM, GL_COMPRESSED_RG_RGTC2, GL_RG, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_RGTC2_SNORM, GL_COMPRESSED_SIGNED_RG_RGTC2, GL_RG, GL_BYTE, NO_SWIZZLE },
};
static struct vrend_format_table srgb_formats[] = {
{ VIRGL_FORMAT_R8G8B8X8_SRGB, GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_BYTE, RGB1_SWIZZLE },
{ VIRGL_FORMAT_R8G8B8A8_SRGB, GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_L8_SRGB, GL_SR8_EXT, GL_RED, GL_UNSIGNED_BYTE, RRR1_SWIZZLE },
{ VIRGL_FORMAT_R8_SRGB, GL_SR8_EXT, GL_RED, GL_UNSIGNED_BYTE, NO_SWIZZLE },
};
static struct vrend_format_table gl_srgb_formats[] =
{
{ VIRGL_FORMAT_B8G8R8X8_SRGB, GL_SRGB8_ALPHA8, GL_BGRA, GL_UNSIGNED_BYTE, RGB1_SWIZZLE },
{ VIRGL_FORMAT_B8G8R8A8_SRGB, GL_SRGB8_ALPHA8, GL_BGRA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
};
static struct vrend_format_table bit10_formats[] = {
{ VIRGL_FORMAT_B10G10R10X2_UNORM, GL_RGB10_A2, GL_BGRA, GL_UNSIGNED_INT_2_10_10_10_REV, RGB1_SWIZZLE },
{ VIRGL_FORMAT_B10G10R10A2_UNORM, GL_RGB10_A2, GL_BGRA, GL_UNSIGNED_INT_2_10_10_10_REV, NO_SWIZZLE },
{ VIRGL_FORMAT_B10G10R10A2_UINT, GL_RGB10_A2UI, GL_BGRA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV, NO_SWIZZLE },
{ VIRGL_FORMAT_R10G10B10X2_UNORM, GL_RGB10_A2, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, RGB1_SWIZZLE },
{ VIRGL_FORMAT_R10G10B10A2_UNORM, GL_RGB10_A2, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, NO_SWIZZLE },
{ VIRGL_FORMAT_R10G10B10A2_UINT, GL_RGB10_A2UI, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV, NO_SWIZZLE },
};
static struct vrend_format_table packed_float_formats[] = {
{ VIRGL_FORMAT_R11G11B10_FLOAT, GL_R11F_G11F_B10F, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, NO_SWIZZLE },
};
static struct vrend_format_table exponent_float_formats[] = {
{ VIRGL_FORMAT_R9G9B9E5_FLOAT, GL_RGB9_E5, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, NO_SWIZZLE },
};
static struct vrend_format_table bptc_formats[] = {
{ VIRGL_FORMAT_BPTC_RGBA_UNORM, GL_COMPRESSED_RGBA_BPTC_UNORM, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_BPTC_SRGBA, GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_BPTC_RGB_FLOAT, GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT, GL_RGB, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_BPTC_RGB_UFLOAT, GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT, GL_RGB, GL_UNSIGNED_BYTE, NO_SWIZZLE },
};
static struct vrend_format_table gl_bgra_formats[] = {
{ VIRGL_FORMAT_B8G8R8X8_UNORM, GL_RGBA8, GL_BGRA, GL_UNSIGNED_BYTE, RGB1_SWIZZLE },
{ VIRGL_FORMAT_B8G8R8A8_UNORM, GL_RGBA8, GL_BGRA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
};
static struct vrend_format_table gles_bgra_formats[] = {
{ VIRGL_FORMAT_B8G8R8X8_UNORM, GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, RGB1_SWIZZLE },
{ VIRGL_FORMAT_B8G8R8A8_UNORM, GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
{ VIRGL_FORMAT_B8G8R8X8_SRGB, GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_BYTE, RGB1_SWIZZLE },
{ VIRGL_FORMAT_B8G8R8A8_SRGB, GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
};
static struct vrend_format_table gles_z32_format[] = {
{ VIRGL_FORMAT_Z32_UNORM, GL_DEPTH_COMPONENT24, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NO_SWIZZLE },
};
static struct vrend_format_table gles_bit10_formats[] = {
{ VIRGL_FORMAT_B10G10R10X2_UNORM, GL_RGB10_A2, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, RGB1_SWIZZLE },
{ VIRGL_FORMAT_B10G10R10A2_UNORM, GL_RGB10_A2, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, NO_SWIZZLE },
};
static bool color_format_can_readback(struct vrend_format_table *virgl_format, int gles_ver)
{
GLint imp = 0;
if (virgl_format->format == VIRGL_FORMAT_R8G8B8A8_UNORM)
return true;
if (gles_ver >= 30 &&
(virgl_format->format == VIRGL_FORMAT_R32G32B32A32_SINT ||
virgl_format->format == VIRGL_FORMAT_R32G32B32A32_UINT))
return true;
if ((virgl_format->format == VIRGL_FORMAT_R32G32B32A32_FLOAT) &&
(gles_ver >= 32 || epoxy_has_gl_extension("GL_EXT_color_buffer_float")))
return true;
/* Hotfix for the CI, on GLES these formats are defined like
* VIRGL_FORMAT_R10G10B10.2_UNORM, and seems to be incorrect for direct
* readback but the blit workaround seems to work, so disable the
* direct readback for these two formats. */
if (virgl_format->format == VIRGL_FORMAT_B10G10R10A2_UNORM ||
virgl_format->format == VIRGL_FORMAT_B10G10R10X2_UNORM)
return false;
/* Check implementation specific readback formats */
glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_TYPE, &imp);
if (imp == (GLint)virgl_format->gltype) {
glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_FORMAT, &imp);
if (imp == (GLint)virgl_format->glformat)
return true;
}
return false;
}
static bool depth_stencil_formats_can_readback(enum virgl_formats format)
{
switch (format) {
case VIRGL_FORMAT_Z16_UNORM:
case VIRGL_FORMAT_Z32_UNORM:
case VIRGL_FORMAT_Z32_FLOAT:
case VIRGL_FORMAT_Z24X8_UNORM:
return epoxy_has_gl_extension("GL_NV_read_depth");
case VIRGL_FORMAT_Z24_UNORM_S8_UINT:
case VIRGL_FORMAT_S8_UINT_Z24_UNORM:
case VIRGL_FORMAT_Z32_FLOAT_S8X24_UINT:
return epoxy_has_gl_extension("GL_NV_read_depth_stencil");
case VIRGL_FORMAT_X24S8_UINT:
case VIRGL_FORMAT_S8X24_UINT:
case VIRGL_FORMAT_S8_UINT:
return epoxy_has_gl_extension("GL_NV_read_stencil");
default:
return false;
}
}
static void vrend_add_formats(struct vrend_format_table *table, int num_entries)
{
int i;
const bool is_desktop_gl = epoxy_is_desktop_gl();
const int gles_ver = is_desktop_gl ? 0 : epoxy_gl_version();
for (i = 0; i < num_entries; i++) {
GLenum status;
bool is_depth = false;
uint32_t flags = 0;
uint32_t binding = 0;
GLuint buffers;
GLuint tex_id, fb_id;
/**/
glGenTextures(1, &tex_id);
glGenFramebuffers(1, &fb_id);
glBindTexture(GL_TEXTURE_2D, tex_id);
glBindFramebuffer(GL_FRAMEBUFFER, fb_id);
/* we can't probe compressed formats, as we'd need valid payloads to
* glCompressedTexImage2D. Let's just check for extensions instead.
*/
if (table[i].format < VIRGL_FORMAT_MAX) {
const struct util_format_description *desc = util_format_description(table[i].format);
switch (desc->layout) {
case UTIL_FORMAT_LAYOUT_S3TC:
if (epoxy_has_gl_extension("GL_S3_s3tc") ||
epoxy_has_gl_extension("GL_EXT_texture_compression_s3tc"))
vrend_insert_format(&table[i], VIRGL_BIND_SAMPLER_VIEW, flags);
continue;
case UTIL_FORMAT_LAYOUT_RGTC:
if (epoxy_has_gl_extension("GL_ARB_texture_compression_rgtc") ||
epoxy_has_gl_extension("GL_EXT_texture_compression_rgtc") )
vrend_insert_format(&table[i], VIRGL_BIND_SAMPLER_VIEW, flags);
continue;
case UTIL_FORMAT_LAYOUT_ETC:
if ((table[i].format == VIRGL_FORMAT_ETC1_RGB8 &&
epoxy_has_gl_extension("GL_OES_compressed_ETC1_RGB8_texture")) ||
(table[i].format != VIRGL_FORMAT_ETC1_RGB8 && gles_ver >= 30))
vrend_insert_format(&table[i], VIRGL_BIND_SAMPLER_VIEW, flags);
continue;
case UTIL_FORMAT_LAYOUT_BPTC:
if (epoxy_has_gl_extension("GL_ARB_texture_compression_bptc") ||
epoxy_has_gl_extension("GL_EXT_texture_compression_bptc"))
vrend_insert_format(&table[i], VIRGL_BIND_SAMPLER_VIEW, flags);
continue;
case UTIL_FORMAT_LAYOUT_ASTC:
if(epoxy_has_gl_extension("GL_KHR_texture_compression_astc_ldr"))
vrend_insert_format(&table[i], VIRGL_BIND_SAMPLER_VIEW, flags);
continue;
default:
;/* do logic below */
}
}
/* The error state should be clear here */
status = glGetError();
assert(status == GL_NO_ERROR);
glTexImage2D(GL_TEXTURE_2D, 0, table[i].internalformat, 32, 32, 0, table[i].glformat, table[i].gltype, NULL);
status = glGetError();
if (status == GL_INVALID_VALUE || status == GL_INVALID_ENUM || status == GL_INVALID_OPERATION) {
struct vrend_format_table *entry = NULL;
uint8_t swizzle[4];
binding = VIRGL_BIND_SAMPLER_VIEW | VIRGL_BIND_RENDER_TARGET;
switch (table[i].format) {
case VIRGL_FORMAT_A8_UNORM:
entry = &rg_base_formats[0];
swizzle[0] = swizzle[1] = swizzle[2] = PIPE_SWIZZLE_ZERO;
swizzle[3] = PIPE_SWIZZLE_RED;
break;
case VIRGL_FORMAT_A16_UNORM:
entry = &rg_base_formats[2];
swizzle[0] = swizzle[1] = swizzle[2] = PIPE_SWIZZLE_ZERO;
swizzle[3] = PIPE_SWIZZLE_RED;
break;
default:
break;
}
if (entry) {
vrend_insert_format_swizzle(table[i].format, entry, binding, swizzle, flags);
}
glDeleteTextures(1, &tex_id);
glDeleteFramebuffers(1, &fb_id);
continue;
}
if (table[i].format < VIRGL_FORMAT_MAX && util_format_is_depth_or_stencil(table[i].format)) {
GLenum attachment;
if (table[i].format == VIRGL_FORMAT_Z24X8_UNORM || table[i].format == VIRGL_FORMAT_Z32_UNORM || table[i].format == VIRGL_FORMAT_Z16_UNORM || table[i].format == VIRGL_FORMAT_Z32_FLOAT)
attachment = GL_DEPTH_ATTACHMENT;
else
attachment = GL_DEPTH_STENCIL_ATTACHMENT;
glFramebufferTexture2D(GL_FRAMEBUFFER, attachment, GL_TEXTURE_2D, tex_id, 0);
is_depth = true;
buffers = GL_NONE;
glDrawBuffers(1, &buffers);
} else {
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, tex_id, 0);
buffers = GL_COLOR_ATTACHMENT0;
glDrawBuffers(1, &buffers);
}
status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
binding = VIRGL_BIND_SAMPLER_VIEW;
if (status == GL_FRAMEBUFFER_COMPLETE) {
binding |= is_depth ? VIRGL_BIND_DEPTH_STENCIL : VIRGL_BIND_RENDER_TARGET;
if (is_desktop_gl ||
(is_depth && depth_stencil_formats_can_readback(table[i].format)) ||
color_format_can_readback(&table[i], gles_ver))
flags |= VIRGL_TEXTURE_CAN_READBACK;
}
glDeleteTextures(1, &tex_id);
glDeleteFramebuffers(1, &fb_id);
if (table[i].swizzle[0] != SWIZZLE_INVALID)
vrend_insert_format_swizzle(table[i].format, &table[i], binding, table[i].swizzle, flags);
else
vrend_insert_format(&table[i], binding, flags);
}
}
#define add_formats(x) vrend_add_formats((x), ARRAY_SIZE((x)))
void vrend_build_format_list_common(void)
{
add_formats(base_rgba_formats);
add_formats(base_depth_formats);
add_formats(base_la_formats);
/* float support */
add_formats(float_base_formats);
add_formats(float_la_formats);
add_formats(float_3comp_formats);
/* texture integer support ? */
add_formats(integer_base_formats);
add_formats(integer_la_formats);
add_formats(integer_3comp_formats);
/* RG support? */
add_formats(rg_base_formats);
/* integer + rg */
add_formats(integer_rg_formats);
/* float + rg */
add_formats(float_rg_formats);
/* snorm */
add_formats(snorm_formats);
add_formats(snorm_la_formats);
/* compressed */
add_formats(etc2_formats);
add_formats(rgtc_formats);
add_formats(dxtn_formats);
add_formats(dxtn_srgb_formats);
add_formats(srgb_formats);
add_formats(bit10_formats);
add_formats(packed_float_formats);
add_formats(exponent_float_formats);
add_formats(bptc_formats);
}
void vrend_build_format_list_gl(void)
{
/* GL_BGRA formats aren't as well supported in GLES as in GL, specially in
* transfer operations. So we only register support for it in GL.
*/
add_formats(gl_base_rgba_formats);
add_formats(gl_bgra_formats);
add_formats(gl_srgb_formats);
}
void vrend_build_format_list_gles(void)
{
/* The BGR[A|X] formats is required but OpenGL ES does not
* support it as nicely as OpenGL. We could try to use BGRA_EXT from
* EXT_texture_format_BGRA8888, but it becomes error prone when mixed
* with BGR*_SRGB formats and framebuffer multisampling. Instead, on
* GLES hosts, we always emulate BGR* as GL_RGB* with a swizzle on
* transfers to/from the host.
*/
add_formats(gles_bgra_formats);
/* The Z32 format is required, but OpenGL ES does not support
* using it as a depth buffer. We just fake support with Z24
* and hope nobody notices.
*/
add_formats(gles_z32_format);
add_formats(gles_bit10_formats);
add_formats(astc_formats);
}
/* glTexStorage may not support all that is supported by glTexImage,
* so add a flag to indicate when it can be used.
*/
void vrend_check_texture_storage(struct vrend_format_table *table)
{
int i;
GLuint tex_id;
for (i = 0; i < VIRGL_FORMAT_MAX_EXTENDED; i++) {
if (table[i].internalformat != 0 &&
!(table[i].flags & VIRGL_TEXTURE_CAN_TEXTURE_STORAGE)) {
glGenTextures(1, &tex_id);
glBindTexture(GL_TEXTURE_2D, tex_id);
glTexStorage2D(GL_TEXTURE_2D, 1, table[i].internalformat, 32, 32);
if (glGetError() == GL_NO_ERROR)
table[i].flags |= VIRGL_TEXTURE_CAN_TEXTURE_STORAGE;
glDeleteTextures(1, &tex_id);
}
}
}
bool vrend_check_framebuffer_mixed_color_attachements()
{
GLuint tex_id[2];
GLuint fb_id;
bool retval = false;
glGenTextures(2, tex_id);
glGenFramebuffers(1, &fb_id);
glBindTexture(GL_TEXTURE_2D, tex_id[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glBindFramebuffer(GL_FRAMEBUFFER, fb_id);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, tex_id[0], 0);
glBindTexture(GL_TEXTURE_2D, tex_id[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, 32, 32, 0, GL_RED, GL_UNSIGNED_BYTE, NULL);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, GL_TEXTURE_2D, tex_id[1], 0);
retval = glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE;
glDeleteFramebuffers(1, &fb_id);
glDeleteTextures(2, tex_id);
return retval;
}
unsigned vrend_renderer_query_multisample_caps(unsigned max_samples, struct virgl_caps_v2 *caps)
{
GLuint tex;
GLuint fbo;
GLenum status;
uint max_samples_confirmed = 1;
uint test_num_samples[4] = {2,4,8,16};
int out_buf_offsets[4] = {0,1,2,4};
int lowest_working_ms_count_idx = -1;
assert(glGetError() == GL_NO_ERROR &&
"Stale error state detected, please check for failures in initialization");
glGenFramebuffers( 1, &fbo );
memset(caps->sample_locations, 0, 8 * sizeof(uint32_t));
for (int i = 3; i >= 0; i--) {
if (test_num_samples[i] > max_samples)
continue;
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, tex);
glTexStorage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, test_num_samples[i], GL_RGBA32F, 64, 64, GL_TRUE);
status = glGetError();
if (status == GL_NO_ERROR) {
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D_MULTISAMPLE, tex, 0);
status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
if (status == GL_FRAMEBUFFER_COMPLETE) {
if (max_samples_confirmed < test_num_samples[i])
max_samples_confirmed = test_num_samples[i];
for (uint k = 0; k < test_num_samples[i]; ++k) {
float msp[2];
uint32_t compressed;
glGetMultisamplefv(GL_SAMPLE_POSITION, k, msp);
compressed = ((unsigned)(floor(msp[0] * 16.0f)) & 0xf) << 4;
compressed |= ((unsigned)(floor(msp[1] * 16.0f)) & 0xf);
caps->sample_locations[out_buf_offsets[i] + (k >> 2)] |= compressed << (8 * (k & 3));
}
lowest_working_ms_count_idx = i;
} else {
/* If a framebuffer doesn't support low sample counts,
* use the sample position from the last working larger count. */
if (lowest_working_ms_count_idx > 0) {
for (uint k = 0; k < test_num_samples[i]; ++k) {
caps->sample_locations[out_buf_offsets[i] + (k >> 2)] =
caps->sample_locations[out_buf_offsets[lowest_working_ms_count_idx] + (k >> 2)];
}
}
}
glBindFramebuffer(GL_FRAMEBUFFER, 0);
}
glDeleteTextures(1, &tex);
}
glDeleteFramebuffers(1, &fbo);
return max_samples_confirmed;
}
/* returns: 1 = compatible, -1 = not compatible, 0 = undecided */
static int format_uncompressed_compressed_copy_compatible(enum virgl_formats src,
enum virgl_formats dst)
{
switch (src) {
case VIRGL_FORMAT_R32G32B32A32_UINT:
case VIRGL_FORMAT_R32G32B32A32_SINT:
case VIRGL_FORMAT_R32G32B32A32_FLOAT:
case VIRGL_FORMAT_R32G32B32A32_SNORM:
case VIRGL_FORMAT_R32G32B32A32_UNORM:
switch (dst) {
case VIRGL_FORMAT_DXT3_RGBA:
case VIRGL_FORMAT_DXT3_SRGBA:
case VIRGL_FORMAT_DXT5_RGBA:
case VIRGL_FORMAT_DXT5_SRGBA:
case VIRGL_FORMAT_RGTC2_UNORM:
case VIRGL_FORMAT_RGTC2_SNORM:
case VIRGL_FORMAT_BPTC_RGBA_UNORM:
case VIRGL_FORMAT_BPTC_SRGBA:
case VIRGL_FORMAT_BPTC_RGB_FLOAT:
case VIRGL_FORMAT_BPTC_RGB_UFLOAT:
case VIRGL_FORMAT_ETC2_RGBA8:
case VIRGL_FORMAT_ETC2_SRGBA8:
case VIRGL_FORMAT_ETC2_RG11_UNORM:
case VIRGL_FORMAT_ETC2_RG11_SNORM:
return 1;
case VIRGL_FORMAT_ASTC_4x4:
case VIRGL_FORMAT_ASTC_5x4:
case VIRGL_FORMAT_ASTC_5x5:
case VIRGL_FORMAT_ASTC_6x5:
case VIRGL_FORMAT_ASTC_6x6:
case VIRGL_FORMAT_ASTC_8x5:
case VIRGL_FORMAT_ASTC_8x6:
case VIRGL_FORMAT_ASTC_8x8:
case VIRGL_FORMAT_ASTC_10x5:
case VIRGL_FORMAT_ASTC_10x6:
case VIRGL_FORMAT_ASTC_10x8:
case VIRGL_FORMAT_ASTC_10x10:
case VIRGL_FORMAT_ASTC_12x10:
case VIRGL_FORMAT_ASTC_12x12:
case VIRGL_FORMAT_ASTC_4x4_SRGB:
case VIRGL_FORMAT_ASTC_5x4_SRGB:
case VIRGL_FORMAT_ASTC_5x5_SRGB:
case VIRGL_FORMAT_ASTC_6x5_SRGB:
case VIRGL_FORMAT_ASTC_6x6_SRGB:
case VIRGL_FORMAT_ASTC_8x5_SRGB:
case VIRGL_FORMAT_ASTC_8x6_SRGB:
case VIRGL_FORMAT_ASTC_8x8_SRGB:
case VIRGL_FORMAT_ASTC_10x5_SRGB:
case VIRGL_FORMAT_ASTC_10x6_SRGB:
case VIRGL_FORMAT_ASTC_10x8_SRGB:
case VIRGL_FORMAT_ASTC_10x10_SRGB:
case VIRGL_FORMAT_ASTC_12x10_SRGB:
case VIRGL_FORMAT_ASTC_12x12_SRGB:
return epoxy_is_desktop_gl() ? -1 : 1;
default:
return -1;
}
case VIRGL_FORMAT_R16G16B16A16_UINT:
case VIRGL_FORMAT_R16G16B16A16_SINT:
case VIRGL_FORMAT_R16G16B16A16_FLOAT:
case VIRGL_FORMAT_R16G16B16A16_SNORM:
case VIRGL_FORMAT_R16G16B16A16_UNORM:
case VIRGL_FORMAT_R32G32_UINT:
case VIRGL_FORMAT_R32G32_SINT:
case VIRGL_FORMAT_R32G32_FLOAT:
case VIRGL_FORMAT_R32G32_UNORM:
case VIRGL_FORMAT_R32G32_SNORM:
switch (dst) {
case VIRGL_FORMAT_DXT1_RGBA:
case VIRGL_FORMAT_DXT1_SRGBA:
case VIRGL_FORMAT_DXT1_RGB:
case VIRGL_FORMAT_DXT1_SRGB:
case VIRGL_FORMAT_RGTC1_UNORM:
case VIRGL_FORMAT_RGTC1_SNORM:
case VIRGL_FORMAT_ETC2_RGB8:
case VIRGL_FORMAT_ETC2_SRGB8:
case VIRGL_FORMAT_ETC2_RGB8A1:
case VIRGL_FORMAT_ETC2_SRGB8A1:
case VIRGL_FORMAT_ETC2_R11_UNORM:
case VIRGL_FORMAT_ETC2_R11_SNORM:
return 1;
default:
return -1;
}
default:
return 0;
}
}
static boolean format_compressed_compressed_copy_compatible(enum virgl_formats src, enum virgl_formats dst)
{
const bool is_desktop_gl = epoxy_is_desktop_gl();
if(!is_desktop_gl) {
if((src == VIRGL_FORMAT_ASTC_4x4 && dst == VIRGL_FORMAT_ASTC_4x4_SRGB) ||
(src == VIRGL_FORMAT_ASTC_5x4 && dst == VIRGL_FORMAT_ASTC_5x4_SRGB) ||
(src == VIRGL_FORMAT_ASTC_5x5 && dst == VIRGL_FORMAT_ASTC_5x5_SRGB) ||
(src == VIRGL_FORMAT_ASTC_6x5 && dst == VIRGL_FORMAT_ASTC_6x5_SRGB) ||
(src == VIRGL_FORMAT_ASTC_6x6 && dst == VIRGL_FORMAT_ASTC_6x6_SRGB) ||
(src == VIRGL_FORMAT_ASTC_8x5 && dst == VIRGL_FORMAT_ASTC_8x5_SRGB) ||
(src == VIRGL_FORMAT_ASTC_8x6 && dst == VIRGL_FORMAT_ASTC_8x6_SRGB) ||
(src == VIRGL_FORMAT_ASTC_8x8 && dst == VIRGL_FORMAT_ASTC_8x8_SRGB) ||
(src == VIRGL_FORMAT_ASTC_10x5 && dst == VIRGL_FORMAT_ASTC_10x5_SRGB) ||
(src == VIRGL_FORMAT_ASTC_10x6 && dst == VIRGL_FORMAT_ASTC_10x6_SRGB) ||
(src == VIRGL_FORMAT_ASTC_10x8 && dst == VIRGL_FORMAT_ASTC_10x8_SRGB) ||
(src == VIRGL_FORMAT_ASTC_10x10 && dst == VIRGL_FORMAT_ASTC_10x10_SRGB) ||
(src == VIRGL_FORMAT_ASTC_12x10 && dst == VIRGL_FORMAT_ASTC_12x10_SRGB) ||
(src == VIRGL_FORMAT_ASTC_12x12 && dst == VIRGL_FORMAT_ASTC_12x12_SRGB))
return true;
}
if ((src == VIRGL_FORMAT_RGTC1_UNORM && dst == VIRGL_FORMAT_RGTC1_SNORM) ||
(src == VIRGL_FORMAT_RGTC2_UNORM && dst == VIRGL_FORMAT_RGTC2_SNORM) ||
(src == VIRGL_FORMAT_BPTC_RGBA_UNORM && dst == VIRGL_FORMAT_BPTC_SRGBA) ||
(src == VIRGL_FORMAT_BPTC_RGB_FLOAT && dst == VIRGL_FORMAT_BPTC_RGB_UFLOAT) ||
(src == VIRGL_FORMAT_ETC2_R11_UNORM && dst == VIRGL_FORMAT_ETC2_R11_SNORM) ||
(src == VIRGL_FORMAT_ETC2_RG11_UNORM && dst == VIRGL_FORMAT_ETC2_RG11_SNORM) ||
(src == VIRGL_FORMAT_ETC2_RGBA8 && dst == VIRGL_FORMAT_ETC2_SRGBA8) ||
(src == VIRGL_FORMAT_ETC2_RGB8A1 && dst == VIRGL_FORMAT_ETC2_SRGB8A1) ||
(src == VIRGL_FORMAT_ETC2_RGB8 && dst == VIRGL_FORMAT_ETC2_SRGB8))
return true;
return false;
}
boolean format_is_copy_compatible(enum virgl_formats src, enum virgl_formats dst,
unsigned int flags)
{
int r;
if (src == dst) {
/* When Mesa imports dma_buf VIRGL_FORMAT_B8G8R8X8_UNORM/DRM|GBM_FORMAT_XRGB8888
* it uses internal format GL_RGB8.
* But when virglrenderer creates VIRGL_FORMAT_B8G8R8X8_UNORM texture, it
* uses internal format GL_RGBA8.
* So the formats do not match when Mesa checks them internally.
*/
if (flags & VREND_COPY_COMPAT_FLAG_ONE_IS_EGL_IMAGE &&
src == VIRGL_FORMAT_B8G8R8X8_UNORM)
return false;
return true;
}
if (util_format_is_plain(src) && util_format_is_plain(dst)) {
const struct util_format_description *src_desc = util_format_description(src);
const struct util_format_description *dst_desc = util_format_description(dst);
return util_is_format_compatible(src_desc, dst_desc);
}
if (!(flags & VREND_COPY_COMPAT_FLAG_ALLOW_COMPRESSED))
return false;
/* compressed-uncompressed */
r = format_uncompressed_compressed_copy_compatible(src, dst);
if (r)
return r > 0;
r = format_uncompressed_compressed_copy_compatible(dst, src);
if (r)
return r > 0;
return format_compressed_compressed_copy_compatible(dst, src) ||
format_compressed_compressed_copy_compatible(src, dst);
}