Refactor how we store and use samplers in Ganesh

src/gpu/gl/GrGLProgram.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrGLProgram.h"
 
 #include "GrAllocator.h"
@@ skipping 13 matching lines @@
 #define GL_CALL(X) GR_GL_CALL(fGpu->glInterface(), X)
 #define GL_CALL_RET(R, X) GR_GL_CALL_RET(fGpu->glInterface(), R, X)
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
 GrGLProgram::GrGLProgram(GrGLGpu* gpu,
                          const GrProgramDesc& desc,
                          const BuiltinUniformHandles& builtinUniforms,
                          GrGLuint programID,
                          const UniformInfoArray& uniforms,
+                         const SkTArray<GrGLSampler>& samplers,
                          const VaryingInfoArray& pathProcVaryings,
                          GrGLSLPrimitiveProcessor* geometryProcessor,
                          GrGLSLXferProcessor* xferProcessor,
-                         const GrGLSLFragProcs& fragmentProcessors,
-                         SkTArray<UniformHandle>* passSamplerUniforms)
+                         const GrGLSLFragProcs& fragmentProcessors)
     : fBuiltinUniformHandles(builtinUniforms)
     , fProgramID(programID)
     , fGeometryProcessor(geometryProcessor)
     , fXferProcessor(xferProcessor)
     , fFragmentProcessors(fragmentProcessors)
     , fDesc(desc)
     , fGpu(gpu)
     , fProgramDataManager(gpu, programID, uniforms, pathProcVaryings) {
-    fSamplerUniforms.swap(passSamplerUniforms);
     // Assign texture units to sampler uniforms one time up front.
     GL_CALL(UseProgram(fProgramID));
-    for (int i = 0; i < fSamplerUniforms.count(); i++) {
-        fProgramDataManager.setSampler(fSamplerUniforms[i], i);
-    }
+    fProgramDataManager.setSamplers(samplers);
 }
 
 GrGLProgram::~GrGLProgram() {
     if (fProgramID) {
         GL_CALL(DeleteProgram(fProgramID));
     }
     for (int i = 0; i < fFragmentProcessors.count(); ++i) {
         delete fFragmentProcessors[i];
     }
 }
@@ skipping 79 matching lines @@
         const GrTextureAccess& access = processor.textureAccess(i);
         fGpu->bindTexture((*nextSamplerIdx)++, access.getParams(),
                           allowSRGBInputs, static_cast<GrGLTexture*>(access.getTexture()));
     }
     for (int i = 0; i < processor.numBuffers(); ++i) {
         const GrBufferAccess& access = processor.bufferAccess(i);
         fGpu->bindTexelBuffer((*nextSamplerIdx)++, access.offsetInBytes(), access.texelConfig(),
                               static_cast<GrGLBuffer*>(access.buffer()));
     }
 }