chromium/third_party/dawn/src/dawn/native/opengl/ShaderModuleGL.cpp

// Copyright 2017 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
//    contributors may be used to endorse or promote products derived from
//    this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#include "dawn/native/opengl/ShaderModuleGL.h"

#include <sstream>
#include <utility>

#include "absl/container/flat_hash_map.h"
#include "dawn/native/BindGroupLayoutInternal.h"
#include "dawn/native/CacheRequest.h"
#include "dawn/native/Pipeline.h"
#include "dawn/native/TintUtils.h"
#include "dawn/native/opengl/BindGroupLayoutGL.h"
#include "dawn/native/opengl/BindingPoint.h"
#include "dawn/native/opengl/DeviceGL.h"
#include "dawn/native/opengl/PipelineLayoutGL.h"
#include "dawn/platform/DawnPlatform.h"
#include "dawn/platform/tracing/TraceEvent.h"

#include "src/tint/api/common/binding_point.h"

namespace dawn::native {
namespace {

GLenum GLShaderType(SingleShaderStage stage) { … }

tint::glsl::writer::Version::Standard ToTintGLStandard(opengl::OpenGLVersion::Standard standard) { … }

BindingMap;

opengl::CombinedSampler* AppendCombinedSampler(opengl::CombinedSamplerInfo* info,
                                               tint::BindingPoint texture,
                                               tint::BindingPoint sampler,
                                               tint::BindingPoint placeholderBindingPoint) { … }

InterstageLocationAndName;

#define GLSL_COMPILATION_REQUEST_MEMBERS …

DAWN_MAKE_CACHE_REQUEST(…);
#undef GLSL_COMPILATION_REQUEST_MEMBERS

#define GLSL_COMPILATION_MEMBERS …

DAWN_SERIALIZABLE(…){};
#undef GLSL_COMPILATION_MEMBERS

}  // namespace
}  // namespace dawn::native

namespace dawn::native::opengl {
namespace {

// Find all the sampler/texture pairs for this entry point, and create CombinedSamplers for them.
// CombinedSampler records the binding points of the original texture and sampler, and generates a
// unique name. The corresponding uniforms will be retrieved by these generated names in PipelineGL.
// Any texture-only references will have "usePlaceholderSampler" set to true, and only the texture
// binding point will be used in naming them. In addition, Dawn will bind a non-filtering sampler
// for them (see PipelineGL).
CombinedSamplerInfo generateCombinedSamplerInfo(tint::inspector::Inspector& inspector,
                                                const std::string& entryPoint,
                                                tint::glsl::writer::Bindings& bindings,
                                                BindingMap externalTextureExpansionMap,
                                                bool* needsPlaceholderSampler

) { … }

bool generateTextureBuiltinFromUniformData(tint::inspector::Inspector& inspector,
                                           const std::string& entryPoint,
                                           const PipelineLayout* layout,
                                           BindingPointToFunctionAndOffset* bindingPointToData,
                                           tint::glsl::writer::Bindings& bindings) { … }

}  // namespace

std::string GetBindingName(BindGroupIndex group, BindingNumber bindingNumber) { … }

bool operator<(const BindingLocation& a, const BindingLocation& b) { … }

bool operator<(const CombinedSampler& a, const CombinedSampler& b) { … }

std::string CombinedSampler::GetName() const { … }

// static
ResultOrError<Ref<ShaderModule>> ShaderModule::Create(
    Device* device,
    const UnpackedPtr<ShaderModuleDescriptor>& descriptor,
    const std::vector<tint::wgsl::Extension>& internalExtensions,
    ShaderModuleParseResult* parseResult,
    OwnedCompilationMessages* compilationMessages) { … }

ShaderModule::ShaderModule(Device* device,
                           const UnpackedPtr<ShaderModuleDescriptor>& descriptor,
                           std::vector<tint::wgsl::Extension> internalExtensions)
    : … { … }

MaybeError ShaderModule::Initialize(ShaderModuleParseResult* parseResult,
                                    OwnedCompilationMessages* compilationMessages) { … }

std::pair<tint::glsl::writer::Bindings, BindingMap> generateBindingInfo(
    SingleShaderStage stage,
    const PipelineLayout* layout,
    const BindingInfoArray& moduleBindingInfo,
    GLSLCompilationRequest& req) { … }

ResultOrError<GLuint> ShaderModule::CompileShader(
    const OpenGLFunctions& gl,
    const ProgrammableStage& programmableStage,
    SingleShaderStage stage,
    bool usesVertexIndex,
    bool usesInstanceIndex,
    bool usesFragDepth,
    CombinedSamplerInfo* combinedSamplers,
    const PipelineLayout* layout,
    bool* needsPlaceholderSampler,
    bool* needsTextureBuiltinUniformBuffer,
    BindingPointToFunctionAndOffset* bindingPointToData) const { … }

}  // namespace dawn::native::opengl