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 |