/**************************************************************************
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*
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* Copyright (C) 2014 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include <epoxy/gl.h>
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#include "vrend_renderer.h"
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#include "util/u_memory.h"
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#include "util/u_format.h"
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#define SWIZZLE_INVALID 0xff
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#define NO_SWIZZLE { SWIZZLE_INVALID, SWIZZLE_INVALID, SWIZZLE_INVALID, SWIZZLE_INVALID }
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#define RRR1_SWIZZLE { PIPE_SWIZZLE_RED, PIPE_SWIZZLE_RED, PIPE_SWIZZLE_RED, PIPE_SWIZZLE_ONE }
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#define RGB1_SWIZZLE { PIPE_SWIZZLE_RED, PIPE_SWIZZLE_GREEN, PIPE_SWIZZLE_BLUE, PIPE_SWIZZLE_ONE }
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#ifdef __GNUC__
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/* The warning missing-field-initializers is misleading: If at least one field
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* is initialized, then the un-initialized fields will be filled with zero.
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* Silencing the warning by manually adding the zeros that the compiler will add
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* anyway doesn't improve the code, and initializing the files by using a named
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* notation will make it worse, because then he remaining fields truely be
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* un-initialized.
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*/
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#ifdef __clang__
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#pragma clang diagnostic ignored "-Wmissing-field-initializers"
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#else
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#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
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#endif
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#endif
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/* fill the format table */
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static struct vrend_format_table base_rgba_formats[] =
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{
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{ VIRGL_FORMAT_B8G8R8X8_UNORM, GL_RGBA8, GL_BGRA, GL_UNSIGNED_BYTE, RGB1_SWIZZLE },
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{ VIRGL_FORMAT_B8G8R8A8_UNORM, GL_RGBA8, GL_BGRA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_R8G8B8X8_UNORM, GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, RGB1_SWIZZLE },
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{ VIRGL_FORMAT_R8G8B8A8_UNORM, GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_A8R8G8B8_UNORM, GL_RGBA8, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, NO_SWIZZLE },
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{ VIRGL_FORMAT_X8R8G8B8_UNORM, GL_RGBA8, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, NO_SWIZZLE },
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{ VIRGL_FORMAT_A8B8G8R8_UNORM, GL_RGBA8, GL_ABGR_EXT, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_B4G4R4X4_UNORM, GL_RGBA4, GL_BGRA, GL_UNSIGNED_SHORT_4_4_4_4_REV, RGB1_SWIZZLE },
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{ VIRGL_FORMAT_A4B4G4R4_UNORM, GL_RGBA4, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, NO_SWIZZLE },
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{ VIRGL_FORMAT_B5G5R5X1_UNORM, GL_RGB5_A1, GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5_REV, RGB1_SWIZZLE },
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{ VIRGL_FORMAT_B5G6R5_UNORM, GL_RGB565, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, NO_SWIZZLE },
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{ VIRGL_FORMAT_B2G3R3_UNORM, GL_R3_G3_B2, GL_RGB, GL_UNSIGNED_BYTE_3_3_2, NO_SWIZZLE },
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{ VIRGL_FORMAT_R16G16B16X16_UNORM, GL_RGBA16, GL_RGBA, GL_UNSIGNED_SHORT, RGB1_SWIZZLE },
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{ VIRGL_FORMAT_R16G16B16A16_UNORM, GL_RGBA16, GL_RGBA, GL_UNSIGNED_SHORT, NO_SWIZZLE },
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};
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static struct vrend_format_table gl_base_rgba_formats[] =
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{
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{ VIRGL_FORMAT_B4G4R4A4_UNORM, GL_RGBA4, GL_BGRA, GL_UNSIGNED_SHORT_4_4_4_4_REV, NO_SWIZZLE },
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{ VIRGL_FORMAT_B5G5R5A1_UNORM, GL_RGB5_A1, GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5_REV, NO_SWIZZLE },
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};
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static struct vrend_format_table base_depth_formats[] =
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{
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{ VIRGL_FORMAT_Z16_UNORM, GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, NO_SWIZZLE },
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{ VIRGL_FORMAT_Z32_UNORM, GL_DEPTH_COMPONENT32, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NO_SWIZZLE },
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{ VIRGL_FORMAT_S8_UINT_Z24_UNORM, GL_DEPTH24_STENCIL8_EXT, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, NO_SWIZZLE },
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{ VIRGL_FORMAT_Z24X8_UNORM, GL_DEPTH_COMPONENT24, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NO_SWIZZLE },
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{ VIRGL_FORMAT_Z32_FLOAT, GL_DEPTH_COMPONENT32F, GL_DEPTH_COMPONENT, GL_FLOAT, NO_SWIZZLE },
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/* this is probably a separate format */
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{ VIRGL_FORMAT_Z32_FLOAT_S8X24_UINT, GL_DEPTH32F_STENCIL8, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV, NO_SWIZZLE },
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{ VIRGL_FORMAT_X24S8_UINT, GL_STENCIL_INDEX8, GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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};
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static struct vrend_format_table base_la_formats[] = {
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{ VIRGL_FORMAT_A8_UNORM, GL_ALPHA8, GL_ALPHA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_L8_UNORM, GL_R8, GL_RED, GL_UNSIGNED_BYTE, RRR1_SWIZZLE },
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{ VIRGL_FORMAT_L8A8_UNORM, GL_LUMINANCE8_ALPHA8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_A16_UNORM, GL_ALPHA16, GL_ALPHA, GL_UNSIGNED_SHORT, NO_SWIZZLE },
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{ VIRGL_FORMAT_L16_UNORM, GL_R16, GL_RED, GL_UNSIGNED_SHORT, RRR1_SWIZZLE },
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{ VIRGL_FORMAT_L16A16_UNORM, GL_LUMINANCE16_ALPHA16, GL_LUMINANCE_ALPHA, GL_UNSIGNED_SHORT, NO_SWIZZLE },
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};
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static struct vrend_format_table rg_base_formats[] = {
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{ VIRGL_FORMAT_R8_UNORM, GL_R8, GL_RED, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_R8G8_UNORM, GL_RG8, GL_RG, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_R16_UNORM, GL_R16, GL_RED, GL_UNSIGNED_SHORT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R16G16_UNORM, GL_RG16, GL_RG, GL_UNSIGNED_SHORT, NO_SWIZZLE },
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};
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static struct vrend_format_table integer_base_formats[] = {
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{ VIRGL_FORMAT_R8G8B8A8_UINT, GL_RGBA8UI, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_R8G8B8A8_SINT, GL_RGBA8I, GL_RGBA_INTEGER, GL_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_R16G16B16A16_UINT, GL_RGBA16UI, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R16G16B16A16_SINT, GL_RGBA16I, GL_RGBA_INTEGER, GL_SHORT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R32G32B32A32_UINT, GL_RGBA32UI, GL_RGBA_INTEGER, GL_UNSIGNED_INT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R32G32B32A32_SINT, GL_RGBA32I, GL_RGBA_INTEGER, GL_INT, NO_SWIZZLE },
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};
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static struct vrend_format_table integer_3comp_formats[] = {
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{ VIRGL_FORMAT_R8G8B8X8_UINT, GL_RGBA8UI, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, RGB1_SWIZZLE },
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{ VIRGL_FORMAT_R8G8B8X8_SINT, GL_RGBA8I, GL_RGBA_INTEGER, GL_BYTE, RGB1_SWIZZLE },
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{ VIRGL_FORMAT_R16G16B16X16_UINT, GL_RGBA16UI, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, RGB1_SWIZZLE },
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{ VIRGL_FORMAT_R16G16B16X16_SINT, GL_RGBA16I, GL_RGBA_INTEGER, GL_SHORT, RGB1_SWIZZLE },
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{ VIRGL_FORMAT_R32G32B32_UINT, GL_RGB32UI, GL_RGB_INTEGER, GL_UNSIGNED_INT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R32G32B32_SINT, GL_RGB32I, GL_RGB_INTEGER, GL_INT, NO_SWIZZLE },
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};
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static struct vrend_format_table float_base_formats[] = {
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{ VIRGL_FORMAT_R16G16B16A16_FLOAT, GL_RGBA16F, GL_RGBA, GL_HALF_FLOAT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R32G32B32A32_FLOAT, GL_RGBA32F, GL_RGBA, GL_FLOAT, NO_SWIZZLE },
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};
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static struct vrend_format_table float_la_formats[] = {
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{ VIRGL_FORMAT_A16_FLOAT, GL_ALPHA16F_ARB, GL_ALPHA, GL_HALF_FLOAT, NO_SWIZZLE },
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{ VIRGL_FORMAT_L16_FLOAT, GL_R16F, GL_RED, GL_HALF_FLOAT, RRR1_SWIZZLE },
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{ VIRGL_FORMAT_L16A16_FLOAT, GL_LUMINANCE_ALPHA16F_ARB, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT, NO_SWIZZLE },
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{ VIRGL_FORMAT_A32_FLOAT, GL_ALPHA32F_ARB, GL_ALPHA, GL_FLOAT, NO_SWIZZLE },
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{ VIRGL_FORMAT_L32_FLOAT, GL_R32F, GL_RED, GL_FLOAT, RRR1_SWIZZLE },
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{ VIRGL_FORMAT_L32A32_FLOAT, GL_LUMINANCE_ALPHA32F_ARB, GL_LUMINANCE_ALPHA, GL_FLOAT, NO_SWIZZLE },
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};
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static struct vrend_format_table integer_rg_formats[] = {
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{ VIRGL_FORMAT_R8_UINT, GL_R8UI, GL_RED_INTEGER, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_R8G8_UINT, GL_RG8UI, GL_RG_INTEGER, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_R8_SINT, GL_R8I, GL_RED_INTEGER, GL_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_R8G8_SINT, GL_RG8I, GL_RG_INTEGER, GL_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_R16_UINT, GL_R16UI, GL_RED_INTEGER, GL_UNSIGNED_SHORT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R16G16_UINT, GL_RG16UI, GL_RG_INTEGER, GL_UNSIGNED_SHORT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R16_SINT, GL_R16I, GL_RED_INTEGER, GL_SHORT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R16G16_SINT, GL_RG16I, GL_RG_INTEGER, GL_SHORT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R32_UINT, GL_R32UI, GL_RED_INTEGER, GL_UNSIGNED_INT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R32G32_UINT, GL_RG32UI, GL_RG_INTEGER, GL_UNSIGNED_INT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R32_SINT, GL_R32I, GL_RED_INTEGER, GL_INT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R32G32_SINT, GL_RG32I, GL_RG_INTEGER, GL_INT, NO_SWIZZLE },
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};
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static struct vrend_format_table float_rg_formats[] = {
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{ VIRGL_FORMAT_R16_FLOAT, GL_R16F, GL_RED, GL_HALF_FLOAT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R16G16_FLOAT, GL_RG16F, GL_RG, GL_HALF_FLOAT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R32_FLOAT, GL_R32F, GL_RED, GL_FLOAT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R32G32_FLOAT, GL_RG32F, GL_RG, GL_FLOAT, NO_SWIZZLE },
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};
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static struct vrend_format_table float_3comp_formats[] = {
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{ VIRGL_FORMAT_R16G16B16X16_FLOAT, GL_RGBA16F, GL_RGBA, GL_HALF_FLOAT, RGB1_SWIZZLE },
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{ VIRGL_FORMAT_R32G32B32_FLOAT, GL_RGB32F, GL_RGB, GL_FLOAT, NO_SWIZZLE },
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};
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static struct vrend_format_table integer_la_formats[] = {
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{ VIRGL_FORMAT_A8_UINT, GL_ALPHA8UI_EXT, GL_ALPHA_INTEGER, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_L8_UINT, GL_R8UI, GL_RED_INTEGER, GL_UNSIGNED_BYTE, RRR1_SWIZZLE },
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{ VIRGL_FORMAT_L8A8_UINT, GL_LUMINANCE_ALPHA8UI_EXT, GL_LUMINANCE_ALPHA_INTEGER_EXT, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_A8_SINT, GL_ALPHA8I_EXT, GL_ALPHA_INTEGER, GL_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_L8_SINT, GL_R8I, GL_RED_INTEGER, GL_BYTE, RRR1_SWIZZLE },
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{ VIRGL_FORMAT_L8A8_SINT, GL_LUMINANCE_ALPHA8I_EXT, GL_LUMINANCE_ALPHA_INTEGER_EXT, GL_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_A16_UINT, GL_ALPHA16UI_EXT, GL_ALPHA_INTEGER, GL_UNSIGNED_SHORT, NO_SWIZZLE },
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{ VIRGL_FORMAT_L16_UINT, GL_R16UI, GL_RED_INTEGER, GL_UNSIGNED_SHORT, RRR1_SWIZZLE },
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{ VIRGL_FORMAT_L16A16_UINT, GL_LUMINANCE_ALPHA16UI_EXT, GL_LUMINANCE_ALPHA_INTEGER_EXT, GL_UNSIGNED_SHORT, NO_SWIZZLE },
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{ VIRGL_FORMAT_A16_SINT, GL_ALPHA16I_EXT, GL_ALPHA_INTEGER, GL_SHORT, NO_SWIZZLE },
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{ VIRGL_FORMAT_L16_SINT, GL_R16I, GL_RED_INTEGER, GL_SHORT, RRR1_SWIZZLE },
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{ VIRGL_FORMAT_L16A16_SINT, GL_LUMINANCE_ALPHA16I_EXT, GL_LUMINANCE_ALPHA_INTEGER_EXT, GL_SHORT, NO_SWIZZLE },
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{ VIRGL_FORMAT_A32_UINT, GL_ALPHA32UI_EXT, GL_ALPHA_INTEGER, GL_UNSIGNED_INT, NO_SWIZZLE },
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{ VIRGL_FORMAT_L32_UINT, GL_R32UI, GL_RED_INTEGER, GL_UNSIGNED_INT, RRR1_SWIZZLE },
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{ VIRGL_FORMAT_L32A32_UINT, GL_LUMINANCE_ALPHA32UI_EXT, GL_LUMINANCE_ALPHA_INTEGER_EXT, GL_UNSIGNED_INT, NO_SWIZZLE },
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{ VIRGL_FORMAT_A32_SINT, GL_ALPHA32I_EXT, GL_ALPHA_INTEGER, GL_INT, NO_SWIZZLE },
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{ VIRGL_FORMAT_L32_SINT, GL_R32I, GL_RED_INTEGER, GL_INT, RRR1_SWIZZLE },
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{ VIRGL_FORMAT_L32A32_SINT, GL_LUMINANCE_ALPHA32I_EXT, GL_LUMINANCE_ALPHA_INTEGER_EXT, GL_INT, NO_SWIZZLE },
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};
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static struct vrend_format_table snorm_formats[] = {
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{ VIRGL_FORMAT_R8_SNORM, GL_R8_SNORM, GL_RED, GL_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_R8G8_SNORM, GL_RG8_SNORM, GL_RG, GL_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_R8G8B8A8_SNORM, GL_RGBA8_SNORM, GL_RGBA, GL_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_R8G8B8X8_SNORM, GL_RGBA8_SNORM, GL_RGBA, GL_BYTE, RGB1_SWIZZLE },
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{ VIRGL_FORMAT_R16_SNORM, GL_R16_SNORM, GL_RED, GL_SHORT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R16G16_SNORM, GL_RG16_SNORM, GL_RG, GL_SHORT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R16G16B16A16_SNORM, GL_RGBA16_SNORM, GL_RGBA, GL_SHORT, NO_SWIZZLE },
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{ VIRGL_FORMAT_R16G16B16X16_SNORM, GL_RGBA16_SNORM, GL_RGBA, GL_SHORT, RGB1_SWIZZLE },
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};
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static struct vrend_format_table snorm_la_formats[] = {
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{ VIRGL_FORMAT_A8_SNORM, GL_ALPHA8_SNORM, GL_ALPHA, GL_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_L8_SNORM, GL_R8_SNORM, GL_RED, GL_BYTE, RRR1_SWIZZLE },
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{ VIRGL_FORMAT_L8A8_SNORM, GL_LUMINANCE8_ALPHA8_SNORM, GL_LUMINANCE_ALPHA, GL_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_A16_SNORM, GL_ALPHA16_SNORM, GL_ALPHA, GL_SHORT, NO_SWIZZLE },
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{ VIRGL_FORMAT_L16_SNORM, GL_R16_SNORM, GL_RED, GL_SHORT, RRR1_SWIZZLE },
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{ VIRGL_FORMAT_L16A16_SNORM, GL_LUMINANCE16_ALPHA16_SNORM, GL_LUMINANCE_ALPHA, GL_SHORT, NO_SWIZZLE },
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};
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static struct vrend_format_table dxtn_formats[] = {
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{ VIRGL_FORMAT_DXT1_RGB, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_RGB, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_DXT1_RGBA, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_DXT3_RGBA, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_DXT5_RGBA, GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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};
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static struct vrend_format_table dxtn_srgb_formats[] = {
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{ VIRGL_FORMAT_DXT1_SRGB, GL_COMPRESSED_SRGB_S3TC_DXT1_EXT, GL_RGB, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_DXT1_SRGBA, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_DXT3_SRGBA, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_DXT5_SRGBA, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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};
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static struct vrend_format_table rgtc_formats[] = {
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{ VIRGL_FORMAT_RGTC1_UNORM, GL_COMPRESSED_RED_RGTC1, GL_RED, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_RGTC1_SNORM, GL_COMPRESSED_SIGNED_RED_RGTC1, GL_RED, GL_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_RGTC2_UNORM, GL_COMPRESSED_RG_RGTC2, GL_RG, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_RGTC2_SNORM, GL_COMPRESSED_SIGNED_RG_RGTC2, GL_RG, GL_BYTE, NO_SWIZZLE },
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};
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static struct vrend_format_table srgb_formats[] = {
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{ VIRGL_FORMAT_R8G8B8X8_SRGB, GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_BYTE, RGB1_SWIZZLE },
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{ VIRGL_FORMAT_R8G8B8A8_SRGB, GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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{ VIRGL_FORMAT_L8_SRGB, GL_SR8_EXT, GL_RED, GL_UNSIGNED_BYTE, RRR1_SWIZZLE },
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{ VIRGL_FORMAT_L8A8_SRGB, GL_SLUMINANCE8_ALPHA8_EXT, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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};
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static struct vrend_format_table gl_srgb_formats[] =
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{
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{ VIRGL_FORMAT_B8G8R8X8_SRGB, GL_SRGB8_ALPHA8, GL_BGRA, GL_UNSIGNED_BYTE, RGB1_SWIZZLE },
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{ VIRGL_FORMAT_B8G8R8A8_SRGB, GL_SRGB8_ALPHA8, GL_BGRA, GL_UNSIGNED_BYTE, NO_SWIZZLE },
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};
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static struct vrend_format_table bit10_formats[] = {
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{ VIRGL_FORMAT_B10G10R10X2_UNORM, GL_RGB10_A2, GL_BGRA, GL_UNSIGNED_INT_2_10_10_10_REV, RGB1_SWIZZLE },
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{ VIRGL_FORMAT_B10G10R10A2_UNORM, GL_RGB10_A2, GL_BGRA, GL_UNSIGNED_INT_2_10_10_10_REV, NO_SWIZZLE },
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{ VIRGL_FORMAT_B10G10R10A2_UINT, GL_RGB10_A2UI, GL_BGRA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV, NO_SWIZZLE },
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{ VIRGL_FORMAT_R10G10B10X2_UNORM, GL_RGB10_A2, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, RGB1_SWIZZLE },
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{ VIRGL_FORMAT_R10G10B10A2_UNORM, GL_RGB10_A2, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, NO_SWIZZLE },
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{ VIRGL_FORMAT_R10G10B10A2_UINT, GL_RGB10_A2UI, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV, NO_SWIZZLE },
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};
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static struct vrend_format_table packed_float_formats[] = {
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{ VIRGL_FORMAT_R11G11B10_FLOAT, GL_R11F_G11F_B10F, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, NO_SWIZZLE },
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};
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static struct vrend_format_table exponent_float_formats[] = {
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{ 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 gles_bgra_formats[] = {
|
{ VIRGL_FORMAT_B8G8R8X8_UNORM, GL_BGRA_EXT, GL_BGRA_EXT, GL_UNSIGNED_BYTE, RGB1_SWIZZLE },
|
{ VIRGL_FORMAT_B8G8R8A8_UNORM, GL_BGRA_EXT, GL_BGRA_EXT, 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 void vrend_add_formats(struct vrend_format_table *table, int num_entries)
|
{
|
int i;
|
uint32_t binding = 0;
|
GLuint buffers;
|
GLuint tex_id, fb_id;
|
|
for (i = 0; i < num_entries; i++) {
|
GLenum status;
|
bool is_depth = false;
|
/**/
|
glGenTextures(1, &tex_id);
|
glGenFramebuffers(1, &fb_id);
|
|
glBindTexture(GL_TEXTURE_2D, tex_id);
|
glBindFramebuffer(GL_FRAMEBUFFER, fb_id);
|
|
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 | VIRGL_BIND_NEED_SWIZZLE;
|
|
switch (table[i].format) {
|
case PIPE_FORMAT_A8_UNORM:
|
entry = &rg_base_formats[0];
|
swizzle[0] = swizzle[1] = swizzle[2] = PIPE_SWIZZLE_ZERO;
|
swizzle[3] = PIPE_SWIZZLE_RED;
|
break;
|
case PIPE_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);
|
}
|
glDeleteTextures(1, &tex_id);
|
glDeleteFramebuffers(1, &fb_id);
|
continue;
|
}
|
|
if (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_EXT, attachment, GL_TEXTURE_2D, tex_id, 0);
|
|
is_depth = true;
|
|
buffers = GL_NONE;
|
glDrawBuffers(1, &buffers);
|
} else {
|
glFramebufferTexture2D(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, tex_id, 0);
|
|
buffers = GL_COLOR_ATTACHMENT0_EXT;
|
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);
|
|
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);
|
else
|
vrend_insert_format(&table[i], binding);
|
}
|
}
|
|
#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(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_srgb_formats);
|
}
|
|
void vrend_build_format_list_gles(void)
|
{
|
/* The BGR[A|X] formats is required but OpenGL ES does not
|
* support rendering to it. Try to use GL_BGRA_EXT from the
|
* GL_EXT_texture_format_BGRA8888 extension. But the
|
* GL_BGRA_EXT format is not supported by OpenGL Desktop.
|
*/
|
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);
|
}
|
|
/* 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; i++) {
|
|
if (table[i].internalformat != 0) {
|
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].bindings |= VIRGL_BIND_CAN_TEXTURE_STORAGE;
|
glDeleteTextures(1, &tex_id);
|
}
|
}
|
}
|
|
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;
|
|
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 pipe_format src,
|
enum pipe_format dst)
|
{
|
switch (src) {
|
case PIPE_FORMAT_R32G32B32A32_UINT:
|
case PIPE_FORMAT_R32G32B32A32_SINT:
|
case PIPE_FORMAT_R32G32B32A32_FLOAT:
|
case PIPE_FORMAT_R32G32B32A32_SNORM:
|
case PIPE_FORMAT_R32G32B32A32_UNORM:
|
switch (dst) {
|
case PIPE_FORMAT_DXT3_RGBA:
|
case PIPE_FORMAT_DXT3_SRGBA:
|
case PIPE_FORMAT_DXT5_RGBA:
|
case PIPE_FORMAT_DXT5_SRGBA:
|
case PIPE_FORMAT_RGTC2_UNORM:
|
case PIPE_FORMAT_RGTC2_SNORM:
|
case PIPE_FORMAT_BPTC_RGBA_UNORM:
|
case PIPE_FORMAT_BPTC_SRGBA:
|
case PIPE_FORMAT_BPTC_RGB_FLOAT:
|
case PIPE_FORMAT_BPTC_RGB_UFLOAT:
|
return 1;
|
default:
|
return -1;
|
}
|
case PIPE_FORMAT_R16G16B16A16_UINT:
|
case PIPE_FORMAT_R16G16B16A16_SINT:
|
case PIPE_FORMAT_R16G16B16A16_FLOAT:
|
case PIPE_FORMAT_R16G16B16A16_SNORM:
|
case PIPE_FORMAT_R16G16B16A16_UNORM:
|
case PIPE_FORMAT_R32G32_UINT:
|
case PIPE_FORMAT_R32G32_SINT:
|
case PIPE_FORMAT_R32G32_FLOAT:
|
case PIPE_FORMAT_R32G32_UNORM:
|
case PIPE_FORMAT_R32G32_SNORM:
|
switch (dst) {
|
case PIPE_FORMAT_DXT1_RGBA:
|
case PIPE_FORMAT_DXT1_SRGBA:
|
case PIPE_FORMAT_DXT1_RGB:
|
case PIPE_FORMAT_DXT1_SRGB:
|
case PIPE_FORMAT_RGTC1_UNORM:
|
case PIPE_FORMAT_RGTC1_SNORM:
|
return 1;
|
default:
|
return -1;
|
}
|
default:
|
return 0;
|
}
|
}
|
|
static boolean format_compressed_compressed_copy_compatible(enum pipe_format src, enum pipe_format dst)
|
{
|
if ((src == PIPE_FORMAT_RGTC1_UNORM && dst == PIPE_FORMAT_RGTC1_SNORM) ||
|
(src == PIPE_FORMAT_RGTC2_UNORM && dst == PIPE_FORMAT_RGTC2_SNORM) ||
|
(src == PIPE_FORMAT_BPTC_RGBA_UNORM && dst == PIPE_FORMAT_BPTC_SRGBA) ||
|
(src == PIPE_FORMAT_BPTC_RGB_FLOAT && dst == PIPE_FORMAT_BPTC_RGB_UFLOAT))
|
return true;
|
return false;
|
}
|
|
boolean format_is_copy_compatible(enum pipe_format src, enum pipe_format dst,
|
boolean allow_compressed)
|
{
|
int r;
|
|
if (src == dst)
|
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 (!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);
|
}
|
