webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 133 insertions, 0 deletions

diff --git a/Source/ThirdParty/ANGLE/src/libANGLE/renderer/gl/ShaderGL.cpp b/Source/ThirdParty/ANGLE/src/libANGLE/renderer/gl/ShaderGL.cpp
new file mode 100644
index 000000000..1574507d1
--- /dev/null
+++ b/Source/ThirdParty/ANGLE/src/libANGLE/renderer/gl/ShaderGL.cpp
@@ -0,0 +1,133 @@
+//
+// Copyright 2015 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// ShaderGL.cpp: Implements the class methods for ShaderGL.
+
+#include "libANGLE/renderer/gl/ShaderGL.h"
+
+#include "common/debug.h"
+#include "libANGLE/Compiler.h"
+#include "libANGLE/renderer/gl/FunctionsGL.h"
+#include "libANGLE/renderer/gl/RendererGL.h"
+#include "libANGLE/renderer/gl/WorkaroundsGL.h"
+
+#include <iostream>
+
+namespace rx
+{
+
+ShaderGL::ShaderGL(const gl::ShaderState &data,
+                   const FunctionsGL *functions,
+                   const WorkaroundsGL &workarounds)
+    : ShaderImpl(data), mFunctions(functions), mWorkarounds(workarounds), mShaderID(0)
+{
+    ASSERT(mFunctions);
+}
+
+ShaderGL::~ShaderGL()
+{
+    if (mShaderID != 0)
+    {
+        mFunctions->deleteShader(mShaderID);
+        mShaderID = 0;
+    }
+}
+
+ShCompileOptions ShaderGL::prepareSourceAndReturnOptions(std::stringstream *sourceStream,
+                                                         std::string * /*sourcePath*/)
+{
+    // Reset the previous state
+    if (mShaderID != 0)
+    {
+        mFunctions->deleteShader(mShaderID);
+        mShaderID = 0;
+    }
+
+    *sourceStream << mData.getSource();
+
+    ShCompileOptions options = SH_INIT_GL_POSITION;
+
+    if (mWorkarounds.doWhileGLSLCausesGPUHang)
+    {
+        options |= SH_REWRITE_DO_WHILE_LOOPS;
+    }
+
+    if (mWorkarounds.emulateAbsIntFunction)
+    {
+        options |= SH_EMULATE_ABS_INT_FUNCTION;
+    }
+
+    if (mWorkarounds.addAndTrueToLoopCondition)
+    {
+        options |= SH_ADD_AND_TRUE_TO_LOOP_CONDITION;
+    }
+
+    if (mWorkarounds.emulateIsnanFloat)
+    {
+        options |= SH_EMULATE_ISNAN_FLOAT_FUNCTION;
+    }
+
+    if (mWorkarounds.useUnusedBlocksWithStandardOrSharedLayout)
+    {
+        options |= SH_USE_UNUSED_STANDARD_SHARED_BLOCKS;
+    }
+
+    return options;
+}
+
+bool ShaderGL::postTranslateCompile(gl::Compiler *compiler, std::string *infoLog)
+{
+    // Translate the ESSL into GLSL
+    const char *translatedSourceCString = mData.getTranslatedSource().c_str();
+
+    // Generate a shader object and set the source
+    mShaderID = mFunctions->createShader(mData.getShaderType());
+    mFunctions->shaderSource(mShaderID, 1, &translatedSourceCString, nullptr);
+    mFunctions->compileShader(mShaderID);
+
+    // Check for compile errors from the native driver
+    GLint compileStatus = GL_FALSE;
+    mFunctions->getShaderiv(mShaderID, GL_COMPILE_STATUS, &compileStatus);
+    if (compileStatus == GL_FALSE)
+    {
+        // Compilation failed, put the error into the info log
+        GLint infoLogLength = 0;
+        mFunctions->getShaderiv(mShaderID, GL_INFO_LOG_LENGTH, &infoLogLength);
+
+        // Info log length includes the null terminator, so 1 means that the info log is an empty
+        // string.
+        if (infoLogLength > 1)
+        {
+            std::vector<char> buf(infoLogLength);
+            mFunctions->getShaderInfoLog(mShaderID, infoLogLength, nullptr, &buf[0]);
+
+            mFunctions->deleteShader(mShaderID);
+            mShaderID = 0;
+
+            *infoLog = &buf[0];
+            TRACE("\n%s", infoLog->c_str());
+        }
+        else
+        {
+            TRACE("\nShader compilation failed with no info log.");
+        }
+        return false;
+    }
+
+    return true;
+}
+
+std::string ShaderGL::getDebugInfo() const
+{
+    return std::string();
+}
+
+GLuint ShaderGL::getShaderID() const
+{
+    return mShaderID;
+}
+
+}