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Unified Diff: src/gpu/gl/builders/GrGLNvprProgramBuilder.h

Issue 611653002: Cleanup of shader building system (Closed) Base URL: https://skia.googlesource.com/skia.git@solo_gp
Patch Set: Created 6 years, 2 months ago
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Index: src/gpu/gl/builders/GrGLNvprProgramBuilder.h
diff --git a/src/gpu/gl/builders/GrGLNvprProgramBuilder.h b/src/gpu/gl/builders/GrGLNvprProgramBuilder.h
new file mode 100644
index 0000000000000000000000000000000000000000..cb1337521d9a6327b08c61a5abd3e20078ed3322
--- /dev/null
+++ b/src/gpu/gl/builders/GrGLNvprProgramBuilder.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrGLNvprProgramBuilder_DEFINED
+#define GrGLNvprProgramBuilder_DEFINED
+
+#include "GrGLProgramBuilder.h"
+
+class GrGLNvprProgramBuilder : public GrGLProgramBuilder {
+public:
+ GrGLNvprProgramBuilder(GrGpuGL*, const GrOptDrawState&, const GrGLProgramDesc&);
+
+ /*
+ * The separable varying info must be passed to GrGLProgram so this must
+ * be part of the public interface
+ */
+ struct SeparableVaryingInfo {
+ GrGLShaderVar fVariable;
+ GrGLint fLocation;
+ };
+
+ typedef GrTAllocator<SeparableVaryingInfo> SeparableVaryingInfoArray;
+
+ virtual GrGLProgram* createProgram(GrGLuint programID);
+
+private:
+ virtual void emitTransforms(const GrProcessorStage&,
+ GrGLProcessor::TransformedCoordsArray* outCoords,
+ GrGLInstalledProcessors*) SK_OVERRIDE;
+
+ typedef GrGLInstalledProcessors::ShaderVarHandle ShaderVarHandle;
+
+ /**
+ * Add a separable varying input variable to the current program.
+ * A separable varying (fragment shader input) is a varying that can be used also when vertex
+ * shaders are not used. With a vertex shader, the operation is same as with other
+ * varyings. Without a vertex shader, such as with NV_path_rendering, GL APIs are used to
+ * populate the variable. The APIs can refer to the variable through the returned handle.
+ */
+ ShaderVarHandle addSeparableVarying(GrSLType type,
+ const char* name,
+ const char** vsOutName,
+ const char** fsInName);
+
+ void resolveSeparableVaryings(GrGLuint programId);
+
+ SeparableVaryingInfoArray fSeparableVaryingInfos;
+
+ typedef GrGLProgramBuilder INHERITED;
+};
+
+#endif
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