32 bpp floating point textures

src/gpu/gl/GrGpuGL.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 "GrGpuGL.h"
 #include "GrGLNameAllocator.h"
@@ skipping 621 matching lines @@
                     }
                     dst += trimRowBytes;
                 }
                 // now point data to our copied version
                 data = tempStorage.get();
             }
         }
         if (glFlipY) {
             GL_CALL(PixelStorei(GR_GL_UNPACK_FLIP_Y, GR_GL_TRUE));
         }
-        GL_CALL(PixelStorei(GR_GL_UNPACK_ALIGNMENT, static_cast<GrGLint>(bpp)));
+        GL_CALL(PixelStorei(GR_GL_UNPACK_ALIGNMENT,
+              static_cast<GrGLint>(GrUnpackAlignment(dataConfig))));
     }
     bool succeeded = true;
     if (isNewTexture &&
         0 == left && 0 == top &&
         desc.fWidth == width && desc.fHeight == height) {
         CLEAR_ERROR_BEFORE_ALLOC(this->glInterface());
         if (useTexStorage) {
             // We never resize  or change formats of textures.
             GL_ALLOC_CALL(this->glInterface(),
                           TexStorage2D(GR_GL_TEXTURE_2D,
@@ skipping 2037 matching lines @@
                     *internalFormat = GR_GL_COMPRESSED_RED_RGTC1;
                     break;
                 case GrGLCaps::k3DC_LATCAlias:
                     *internalFormat = GR_GL_COMPRESSED_3DC_X;
                     break;
             }
             break;
         case kR11_EAC_GrPixelConfig:
             *internalFormat = GR_GL_COMPRESSED_R11;
             break;
+        case kRGBA_float_GrPixelConfig:
+            *internalFormat = GR_GL_RGBA32F;
+            *externalFormat = GR_GL_RGBA;
+            *externalType = GR_GL_FLOAT;
+            break;
         default:
             return false;
     }
     return true;
 }
 
 void GrGpuGL::setTextureUnit(int unit) {
     SkASSERT(unit >= 0 && unit < fHWBoundTextures.count());
     if (unit != fHWActiveTextureUnitIdx) {
         GL_CALL(ActiveTexture(GR_GL_TEXTURE0 + unit));
@@ skipping 308 matching lines @@
             this->setVertexArrayID(gpu, 0);
         }
         int attrCount = gpu->glCaps().maxVertexAttributes();
         if (fDefaultVertexArrayAttribState.count() != attrCount) {
             fDefaultVertexArrayAttribState.resize(attrCount);
         }
         attribState = &fDefaultVertexArrayAttribState;
     }
     return attribState;
 }