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Merge pull request #5891 from ameerj/bgra-ogl

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renderer_opengl: Use compute shaders to swizzle BGR textures on copy
This commit is contained in:
Rodrigo Locatti 2021-03-09 02:47:51 -03:00 • committed by GitHub
commit daf5c5060b
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GPG key ID: 4AEE18F83AFDEB23
14 changed files with 212 additions and 30 deletions
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20
src/video_core/renderer_opengl/gl_texture_cache.cpp
View file

@ -96,7 +96,7 @@ constexpr std::array<FormatTuple, MaxPixelFormat> FORMAT_TABLE = {{
{GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT}, // BC6H_UFLOAT
{GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT}, // BC6H_SFLOAT
{GL_COMPRESSED_RGBA_ASTC_4x4_KHR}, // ASTC_2D_4X4_UNORM
{GL_RGBA8, GL_BGRA, GL_UNSIGNED_BYTE}, // B8G8R8A8_UNORM
{GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE}, // B8G8R8A8_UNORM
{GL_RGBA32F, GL_RGBA, GL_FLOAT}, // R32G32B32A32_FLOAT
{GL_RGBA32I, GL_RGBA_INTEGER, GL_INT}, // R32G32B32A32_SINT
{GL_RG32F, GL_RG, GL_FLOAT}, // R32G32_FLOAT
@ -125,7 +125,7 @@ constexpr std::array<FormatTuple, MaxPixelFormat> FORMAT_TABLE = {{
{GL_COMPRESSED_RGBA_ASTC_8x8_KHR}, // ASTC_2D_8X8_UNORM
{GL_COMPRESSED_RGBA_ASTC_8x5_KHR}, // ASTC_2D_8X5_UNORM
{GL_COMPRESSED_RGBA_ASTC_5x4_KHR}, // ASTC_2D_5X4_UNORM
{GL_SRGB8_ALPHA8, GL_BGRA, GL_UNSIGNED_BYTE}, // B8G8R8A8_UNORM
{GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_BYTE}, // B8G8R8A8_SRGB
{GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT}, // BC1_RGBA_SRGB
{GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT}, // BC2_SRGB
{GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT}, // BC3_SRGB
@ -396,6 +396,17 @@ void AttachTexture(GLuint fbo, GLenum attachment, const ImageView* image_view) {
}
}
[[nodiscard]] bool IsPixelFormatBGR(PixelFormat format) {
switch (format) {
case PixelFormat::B5G6R5_UNORM:
case PixelFormat::B8G8R8A8_UNORM:
case PixelFormat::B8G8R8A8_SRGB:
return true;
default:
return false;
}
}
} // Anonymous namespace
ImageBufferMap::~ImageBufferMap() {
@ -512,6 +523,9 @@ bool TextureCacheRuntime::CanImageBeCopied(const Image& dst, const Image& src) {
if (dst.info.type == ImageType::e3D && dst.info.format == PixelFormat::BC4_UNORM) {
return false;
}
if (IsPixelFormatBGR(dst.info.format) || IsPixelFormatBGR(src.info.format)) {
return false;
}
return true;
}
@ -520,6 +534,8 @@ void TextureCacheRuntime::EmulateCopyImage(Image& dst, Image& src,
if (dst.info.type == ImageType::e3D && dst.info.format == PixelFormat::BC4_UNORM) {
ASSERT(src.info.type == ImageType::e3D);
util_shaders.CopyBC4(dst, src, copies);
} else if (IsPixelFormatBGR(dst.info.format) || IsPixelFormatBGR(src.info.format)) {
util_shaders.CopyBGR(dst, src, copies);
} else {
UNREACHABLE();
}

5
src/video_core/renderer_opengl/gl_texture_cache.h
View file

@ -86,6 +86,11 @@ public:
FormatProperties FormatInfo(VideoCommon::ImageType type, GLenum internal_format) const;
bool HasNativeBgr() const noexcept {
// OpenGL does not have native support for the BGR internal format
return false;
}
bool HasBrokenTextureViewFormats() const noexcept {
return has_broken_texture_view_formats;
}

76
src/video_core/renderer_opengl/util_shaders.cpp
View file

@ -14,6 +14,7 @@
#include "video_core/host_shaders/block_linear_unswizzle_2d_comp.h"
#include "video_core/host_shaders/block_linear_unswizzle_3d_comp.h"
#include "video_core/host_shaders/opengl_copy_bc4_comp.h"
#include "video_core/host_shaders/opengl_copy_bgra_comp.h"
#include "video_core/host_shaders/pitch_unswizzle_comp.h"
#include "video_core/renderer_opengl/gl_resource_manager.h"
#include "video_core/renderer_opengl/gl_shader_manager.h"
@ -48,6 +49,11 @@ OGLProgram MakeProgram(std::string_view source) {
return program;
}
size_t NumPixelsInCopy(const VideoCommon::ImageCopy& copy) {
return static_cast<size_t>(copy.extent.width * copy.extent.height *
copy.src_subresource.num_layers);
}
} // Anonymous namespace
UtilShaders::UtilShaders(ProgramManager& program_manager_)
@ -55,6 +61,7 @@ UtilShaders::UtilShaders(ProgramManager& program_manager_)
block_linear_unswizzle_2d_program(MakeProgram(BLOCK_LINEAR_UNSWIZZLE_2D_COMP)),
block_linear_unswizzle_3d_program(MakeProgram(BLOCK_LINEAR_UNSWIZZLE_3D_COMP)),
pitch_unswizzle_program(MakeProgram(PITCH_UNSWIZZLE_COMP)),
copy_bgra_program(MakeProgram(OPENGL_COPY_BGRA_COMP)),
copy_bc4_program(MakeProgram(OPENGL_COPY_BC4_COMP)) {
const auto swizzle_table = Tegra::Texture::MakeSwizzleTable();
swizzle_table_buffer.Create();
@ -205,6 +212,43 @@ void UtilShaders::CopyBC4(Image& dst_image, Image& src_image, std::span<const Im
program_manager.RestoreGuestCompute();
}
void UtilShaders::CopyBGR(Image& dst_image, Image& src_image,
std::span<const VideoCommon::ImageCopy> copies) {
static constexpr GLuint BINDING_INPUT_IMAGE = 0;
static constexpr GLuint BINDING_OUTPUT_IMAGE = 1;
static constexpr VideoCommon::Offset3D zero_offset{0, 0, 0};
const u32 bytes_per_block = BytesPerBlock(dst_image.info.format);
switch (bytes_per_block) {
case 2:
// BGR565 copy
for (const ImageCopy& copy : copies) {
ASSERT(copy.src_offset == zero_offset);
ASSERT(copy.dst_offset == zero_offset);
bgr_copy_pass.Execute(dst_image, src_image, copy);
}
break;
case 4: {
// BGRA8 copy
program_manager.BindHostCompute(copy_bgra_program.handle);
constexpr GLenum FORMAT = GL_RGBA8;
for (const ImageCopy& copy : copies) {
ASSERT(copy.src_offset == zero_offset);
ASSERT(copy.dst_offset == zero_offset);
glBindImageTexture(BINDING_INPUT_IMAGE, src_image.StorageHandle(),
copy.src_subresource.base_level, GL_FALSE, 0, GL_READ_ONLY, FORMAT);
glBindImageTexture(BINDING_OUTPUT_IMAGE, dst_image.StorageHandle(),
copy.dst_subresource.base_level, GL_FALSE, 0, GL_WRITE_ONLY, FORMAT);
glDispatchCompute(copy.extent.width, copy.extent.height, copy.extent.depth);
}
program_manager.RestoreGuestCompute();
break;
}
default:
UNREACHABLE();
break;
}
}
GLenum StoreFormat(u32 bytes_per_block) {
switch (bytes_per_block) {
case 1:
@ -222,4 +266,36 @@ GLenum StoreFormat(u32 bytes_per_block) {
return GL_R8UI;
}
void Bgr565CopyPass::Execute(const Image& dst_image, const Image& src_image,
const ImageCopy& copy) {
if (CopyBufferCreationNeeded(copy)) {
CreateNewCopyBuffer(copy, GL_TEXTURE_2D_ARRAY, GL_RGB565);
}
// Copy from source to PBO
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glPixelStorei(GL_PACK_ROW_LENGTH, copy.extent.width);
glBindBuffer(GL_PIXEL_PACK_BUFFER, bgr16_pbo.handle);
glGetTextureSubImage(src_image.Handle(), 0, 0, 0, 0, copy.extent.width, copy.extent.height,
copy.src_subresource.num_layers, GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
static_cast<GLsizei>(bgr16_pbo_size), nullptr);
// Copy from PBO to destination in reverse order
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glPixelStorei(GL_UNPACK_ROW_LENGTH, copy.extent.width);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, bgr16_pbo.handle);
glTextureSubImage3D(dst_image.Handle(), 0, 0, 0, 0, copy.extent.width, copy.extent.height,
copy.dst_subresource.num_layers, GL_RGB, GL_UNSIGNED_SHORT_5_6_5_REV,
nullptr);
}
bool Bgr565CopyPass::CopyBufferCreationNeeded(const ImageCopy& copy) {
return bgr16_pbo_size < NumPixelsInCopy(copy) * sizeof(u16);
}
void Bgr565CopyPass::CreateNewCopyBuffer(const ImageCopy& copy, GLenum target, GLuint format) {
bgr16_pbo.Create();
bgr16_pbo_size = NumPixelsInCopy(copy) * sizeof(u16);
glNamedBufferData(bgr16_pbo.handle, bgr16_pbo_size, nullptr, GL_STREAM_COPY);
}
} // namespace OpenGL

22
src/video_core/renderer_opengl/util_shaders.h
View file

@ -19,6 +19,22 @@ class ProgramManager;
struct ImageBufferMap;
class Bgr565CopyPass {
public:
Bgr565CopyPass() = default;
~Bgr565CopyPass() = default;
void Execute(const Image& dst_image, const Image& src_image,
const VideoCommon::ImageCopy& copy);
private:
[[nodiscard]] bool CopyBufferCreationNeeded(const VideoCommon::ImageCopy& copy);
void CreateNewCopyBuffer(const VideoCommon::ImageCopy& copy, GLenum target, GLuint format);
OGLBuffer bgr16_pbo;
size_t bgr16_pbo_size{};
};
class UtilShaders {
public:
explicit UtilShaders(ProgramManager& program_manager);
@ -36,6 +52,9 @@ public:
void CopyBC4(Image& dst_image, Image& src_image,
std::span<const VideoCommon::ImageCopy> copies);
void CopyBGR(Image& dst_image, Image& src_image,
std::span<const VideoCommon::ImageCopy> copies);
private:
ProgramManager& program_manager;
@ -44,7 +63,10 @@ private:
OGLProgram block_linear_unswizzle_2d_program;
OGLProgram block_linear_unswizzle_3d_program;
OGLProgram pitch_unswizzle_program;
OGLProgram copy_bgra_program;
OGLProgram copy_bc4_program;
Bgr565CopyPass bgr_copy_pass;
};
GLenum StoreFormat(u32 bytes_per_block);