Add vulkan files into skia repo.

src/gpu/vk/GrVkProgramDesc.cpp

Index: src/gpu/vk/GrVkProgramDesc.cpp
diff --git a/src/gpu/gl/GrGLProgramDesc.cpp b/src/gpu/vk/GrVkProgramDesc.cpp
similarity index 68%
copy from src/gpu/gl/GrGLProgramDesc.cpp
copy to src/gpu/vk/GrVkProgramDesc.cpp
index a2dea8739206cbcab2e356ca4e4c4e49da865502..346dbb6baaeaa15695f9255f6303e8f445854bd4 100644
--- a/src/gpu/gl/GrGLProgramDesc.cpp
+++ b/src/gpu/vk/GrVkProgramDesc.cpp
@@ -1,34 +1,22 @@
 /*
- * Copyright 2013 Google Inc.
+ * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
-#include "GrGLProgramDesc.h"
+#include "GrVkProgramDesc.h"
 
+//#include "GrVkProcessor.h"
 #include "GrProcessor.h"
 #include "GrPipeline.h"
+#include "GrVkGpu.h"
+#include "GrVkUtil.h"
 #include "SkChecksum.h"
-#include "gl/GrGLDefines.h"
-#include "gl/GrGLTexture.h"
-#include "gl/GrGLTypes.h"
 #include "glsl/GrGLSLFragmentProcessor.h"
 #include "glsl/GrGLSLFragmentShaderBuilder.h"
 #include "glsl/GrGLSLCaps.h"
 
-static uint8_t texture_target_key(GrGLenum target) {
-    switch (target) {
-        case GR_GL_TEXTURE_2D:
-            return 0;
-        case GR_GL_TEXTURE_EXTERNAL:
-            return 1;
-        case GR_GL_TEXTURE_RECTANGLE:
-            return 2;
-        default:
-            SkFAIL("Unexpected texture target.");
-            return 0;
-    }
-}
+#include "shaderc/shaderc.h"
 
 static void add_texture_key(GrProcessorKeyBuilder* b, const GrProcessor& proc,
                             const GrGLSLCaps& caps) {
@@ -41,9 +29,8 @@ static void add_texture_key(GrProcessorKeyBuilder* b, const GrProcessor& proc,
     uint16_t* k16 = SkTCast<uint16_t*>(b->add32n(word32Count));
     for (int i = 0; i < numTextures; ++i) {
         const GrTextureAccess& access = proc.textureAccess(i);
-        GrGLTexture* texture = static_cast<GrGLTexture*>(access.getTexture());
-        k16[i] = SkToU16(caps.configTextureSwizzle(texture->config()).asKey() |
-                         (texture_target_key(texture->target()) << 8));
+        GrTexture* texture = access.getTexture();
+        k16[i] = SkToU16(caps.configTextureSwizzle(texture->config()).asKey());
     }
     // zero the last 16 bits if the number of textures is odd.
     if (numTextures & 0x1) {
@@ -52,14 +39,14 @@ static void add_texture_key(GrProcessorKeyBuilder* b, const GrProcessor& proc,
 }
 
 /**
- * A function which emits a meta key into the key builder.  This is required because shader code may
- * be dependent on properties of the effect that the effect itself doesn't use
- * in its key (e.g. the pixel format of textures used). So we create a meta-key for
- * every effect using this function. It is also responsible for inserting the effect's class ID
- * which must be different for every GrProcessor subclass. It can fail if an effect uses too many
- * transforms, etc, for the space allotted in the meta-key.  NOTE, both FPs and GPs share this
- * function because it is hairy, though FPs do not have attribs, and GPs do not have transforms
- */
+* A function which emits a meta key into the key builder.  This is required because shader code may
+* be dependent on properties of the effect that the effect itself doesn't use
+* in its key (e.g. the pixel format of textures used). So we create a meta-key for
+* every effect using this function. It is also responsible for inserting the effect's class ID
+* which must be different for every GrProcessor subclass. It can fail if an effect uses too many
+* transforms, etc, for the space allotted in the meta-key.  NOTE, both FPs and GPs share this
+* function because it is hairy, though FPs do not have attribs, and GPs do not have transforms
+*/
 static bool gen_meta_key(const GrProcessor& proc,
                          const GrGLSLCaps& glslCaps,
                          uint32_t transformKey,
@@ -68,7 +55,7 @@ static bool gen_meta_key(const GrProcessor& proc,
     uint32_t classID = proc.classID();
 
     // Currently we allow 16 bits for the class id and the overall processor key size.
-    static const uint32_t kMetaKeyInvalidMask = ~((uint32_t) SK_MaxU16);
+    static const uint32_t kMetaKeyInvalidMask = ~((uint32_t)SK_MaxU16);
     if ((processorKeySize | classID) & kMetaKeyInvalidMask) {
         return false;
     }
@@ -94,10 +81,10 @@ static bool gen_frag_proc_and_meta_keys(const GrPrimitiveProcessor& primProc,
     fp.getGLSLProcessorKey(glslCaps, b);
 
     return gen_meta_key(fp, glslCaps, primProc.getTransformKey(fp.coordTransforms(),
-                                                               fp.numTransformsExclChildren()), b);
+        fp.numTransformsExclChildren()), b);
 }
 
-bool GrGLProgramDescBuilder::Build(GrProgramDesc* desc,
+bool GrVkProgramDescBuilder::Build(GrProgramDesc* desc,
                                    const GrPrimitiveProcessor& primProc,
                                    const GrPipeline& pipeline,
                                    const GrGLSLCaps& glslCaps) {
@@ -106,25 +93,25 @@ bool GrGLProgramDescBuilder::Build(GrProgramDesc* desc,
     // bindings in use or other descriptor field settings) it should be set
     // to a canonical value to avoid duplicate programs with different keys.
 
-    GrGLProgramDesc* glDesc = (GrGLProgramDesc*) desc;
+    GrVkProgramDesc* vkDesc = (GrVkProgramDesc*)desc;
 
     GR_STATIC_ASSERT(0 == kProcessorKeysOffset % sizeof(uint32_t));
     // Make room for everything up to the effect keys.
-    glDesc->key().reset();
-    glDesc->key().push_back_n(kProcessorKeysOffset);
+    vkDesc->key().reset();
+    vkDesc->key().push_back_n(kProcessorKeysOffset);
 
-    GrProcessorKeyBuilder b(&glDesc->key());
+    GrProcessorKeyBuilder b(&vkDesc->key());
 
     primProc.getGLSLProcessorKey(glslCaps, &b);
     if (!gen_meta_key(primProc, glslCaps, 0, &b)) {
-        glDesc->key().reset();
+        vkDesc->key().reset();
         return false;
     }
 
     for (int i = 0; i < pipeline.numFragmentProcessors(); ++i) {
         const GrFragmentProcessor& fp = pipeline.getFragmentProcessor(i);
         if (!gen_frag_proc_and_meta_keys(primProc, fp, glslCaps, &b)) {
-            glDesc->key().reset();
+            vkDesc->key().reset();
             return false;
         }
     }
@@ -132,21 +119,21 @@ bool GrGLProgramDescBuilder::Build(GrProgramDesc* desc,
     const GrXferProcessor& xp = pipeline.getXferProcessor();
     xp.getGLSLProcessorKey(glslCaps, &b);
     if (!gen_meta_key(xp, glslCaps, 0, &b)) {
-        glDesc->key().reset();
+        vkDesc->key().reset();
         return false;
     }
 
     // --------DO NOT MOVE HEADER ABOVE THIS LINE--------------------------------------------------
     // Because header is a pointer into the dynamic array, we can't push any new data into the key
     // below here.
-    KeyHeader* header = glDesc->atOffset<KeyHeader, kHeaderOffset>();
+    KeyHeader* header = vkDesc->atOffset<KeyHeader, kHeaderOffset>();
 
     // make sure any padding in the header is zeroed.
     memset(header, 0, kHeaderSize);
 
     if (pipeline.readsFragPosition()) {
         header->fFragPosKey =
-                GrGLSLFragmentShaderBuilder::KeyForFragmentPosition(pipeline.getRenderTarget());
+            GrGLSLFragmentShaderBuilder::KeyForFragmentPosition(pipeline.getRenderTarget());
     } else {
         header->fFragPosKey = 0;
     }
@@ -163,6 +150,6 @@ bool GrGLProgramDescBuilder::Build(GrProgramDesc* desc,
     header->fSnapVerticesToPixelCenters = pipeline.snapVerticesToPixelCenters();
     header->fColorEffectCnt = pipeline.numColorFragmentProcessors();
     header->fCoverageEffectCnt = pipeline.numCoverageFragmentProcessors();
-    glDesc->finalize();
+    vkDesc->finalize();
     return true;
 }