summaryrefslogtreecommitdiffstats
path: root/gfx/angle/checkout/src/compiler/translator/TranslatorMetal.h
diff options
context:
space:
mode:
Diffstat (limited to 'gfx/angle/checkout/src/compiler/translator/TranslatorMetal.h')
-rw-r--r--gfx/angle/checkout/src/compiler/translator/TranslatorMetal.h62
1 files changed, 62 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/compiler/translator/TranslatorMetal.h b/gfx/angle/checkout/src/compiler/translator/TranslatorMetal.h
new file mode 100644
index 0000000000..32b7564f34
--- /dev/null
+++ b/gfx/angle/checkout/src/compiler/translator/TranslatorMetal.h
@@ -0,0 +1,62 @@
+//
+// Copyright 2019 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// TranslatorMetal:
+// A GLSL-based translator that outputs shaders that fit GL_KHR_vulkan_glsl.
+// It takes into account some considerations for Metal backend also.
+// The shaders are then fed into glslang to spit out SPIR-V.
+// See: https://www.khronos.org/registry/vulkan/specs/misc/GL_KHR_vulkan_glsl.txt
+//
+// The SPIR-V will then be translated to Metal Shading Language later in Metal backend.
+//
+
+#ifndef LIBANGLE_RENDERER_METAL_TRANSLATORMETAL_H_
+#define LIBANGLE_RENDERER_METAL_TRANSLATORMETAL_H_
+
+#include "compiler/translator/DriverUniformMetal.h"
+#include "compiler/translator/TranslatorVulkan.h"
+#include "compiler/translator/tree_util/DriverUniform.h"
+#include "compiler/translator/tree_util/SpecializationConstant.h"
+
+namespace sh
+{
+
+// TODO: http://anglebug.com/5339 Implement it using actual specialization constant. For now we are
+// redirecting to driver uniforms
+class SpecConstMetal : public SpecConst
+{
+ public:
+ SpecConstMetal(TSymbolTable *symbolTable,
+ const ShCompileOptions &compileOptions,
+ GLenum shaderType)
+ : SpecConst(symbolTable, compileOptions, shaderType)
+ {}
+ ~SpecConstMetal() override {}
+
+ private:
+};
+
+class TranslatorMetal : public TranslatorVulkan
+{
+ public:
+ TranslatorMetal(sh::GLenum type, ShShaderSpec spec);
+
+ protected:
+ [[nodiscard]] bool translate(TIntermBlock *root,
+ const ShCompileOptions &compileOptions,
+ PerformanceDiagnostics *perfDiagnostics) override;
+
+ [[nodiscard]] bool transformDepthBeforeCorrection(TIntermBlock *root,
+ const DriverUniform *driverUniforms) override;
+
+ [[nodiscard]] bool insertSampleMaskWritingLogic(TInfoSinkBase &sink,
+ TIntermBlock *root,
+ const DriverUniformMetal *driverUniforms);
+ [[nodiscard]] bool insertRasterizerDiscardLogic(TInfoSinkBase &sink, TIntermBlock *root);
+};
+
+} // namespace sh
+
+#endif /* LIBANGLE_RENDERER_METAL_TRANSLATORMETAL_H_ */