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//
// Copyright 2014 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.
//
#include "libGLESv2/renderer/d3d/HLSLCompiler.h"
#include "libGLESv2/Program.h"
#include "libGLESv2/main.h"
#include "common/utilities.h"
#include "common/platform.h"
#if defined(__MINGW32__) && !defined(D3DCOMPILER_DLL)
// Add define + typedefs for older MinGW-w64 headers (pre 5783)
#define D3DCOMPILER_DLL L"d3dcompiler_43.dll"
HRESULT WINAPI D3DCompile(const void *data, SIZE_T data_size, const char *filename,
const D3D_SHADER_MACRO *defines, ID3DInclude *include, const char *entrypoint,
const char *target, UINT sflags, UINT eflags, ID3DBlob **shader, ID3DBlob **error_messages);
typedef HRESULT (WINAPI *pD3DCompile)(const void *data, SIZE_T data_size, const char *filename,
const D3D_SHADER_MACRO *defines, ID3DInclude *include, const char *entrypoint,
const char *target, UINT sflags, UINT eflags, ID3DBlob **shader, ID3DBlob **error_messages);
#endif // __MINGW32__ && !D3DCOMPILER_DLL
#ifndef QT_D3DCOMPILER_DLL
#define QT_D3DCOMPILER_DLL D3DCOMPILER_DLL
#endif
namespace rx
{
HLSLCompiler::HLSLCompiler()
: mD3DCompilerModule(NULL),
mD3DCompileFunc(NULL)
{
}
HLSLCompiler::~HLSLCompiler()
{
release();
}
bool HLSLCompiler::initialize()
{
#if !defined(ANGLE_PLATFORM_WINRT)
#if defined(ANGLE_PRELOADED_D3DCOMPILER_MODULE_NAMES)
// Find a D3DCompiler module that had already been loaded based on a predefined list of versions.
static const char *d3dCompilerNames[] = ANGLE_PRELOADED_D3DCOMPILER_MODULE_NAMES;
for (size_t i = 0; i < ArraySize(d3dCompilerNames); ++i)
{
if (GetModuleHandleExA(0, d3dCompilerNames[i], &mD3DCompilerModule))
{
break;
}
}
#endif // ANGLE_PRELOADED_D3DCOMPILER_MODULE_NAMES
// Load the compiler DLL specified by the environment, or default to QT_D3DCOMPILER_DLL
const wchar_t *defaultCompiler = _wgetenv(L"QT_D3DCOMPILER_DLL");
if (!defaultCompiler)
defaultCompiler = QT_D3DCOMPILER_DLL;
const wchar_t *compilerDlls[] = {
defaultCompiler,
L"d3dcompiler_47.dll",
L"d3dcompiler_46.dll",
L"d3dcompiler_45.dll",
L"d3dcompiler_44.dll",
L"d3dcompiler_43.dll",
0
};
// Load the first available known compiler DLL
for (int i = 0; compilerDlls[i]; ++i)
{
mD3DCompilerModule = LoadLibrary(compilerDlls[i]);
if (mD3DCompilerModule)
break;
}
if (!mD3DCompilerModule)
{
ERR("No D3D compiler module found - aborting!\n");
return false;
}
mD3DCompileFunc = reinterpret_cast<CompileFuncPtr>(GetProcAddress(mD3DCompilerModule, "D3DCompile"));
ASSERT(mD3DCompileFunc);
#else
mD3DCompileFunc = reinterpret_cast<CompileFuncPtr>(&D3DCompile);
#endif
return mD3DCompileFunc != NULL;
}
void HLSLCompiler::release()
{
if (mD3DCompilerModule)
{
FreeLibrary(mD3DCompilerModule);
mD3DCompilerModule = NULL;
mD3DCompileFunc = NULL;
}
}
ShaderBlob *HLSLCompiler::compileToBinary(gl::InfoLog &infoLog, const char *hlsl, const char *profile,
const UINT optimizationFlags[], const char *flagNames[], int attempts) const
{
#if !defined(ANGLE_PLATFORM_WINRT)
ASSERT(mD3DCompilerModule && mD3DCompileFunc);
#endif
if (!hlsl)
{
return NULL;
}
pD3DCompile compileFunc = reinterpret_cast<pD3DCompile>(mD3DCompileFunc);
for (int i = 0; i < attempts; ++i)
{
ID3DBlob *errorMessage = NULL;
ID3DBlob *binary = NULL;
HRESULT result = compileFunc(hlsl, strlen(hlsl), gl::g_fakepath, NULL, NULL, "main", profile, optimizationFlags[i], 0, &binary, &errorMessage);
if (errorMessage)
{
const char *message = (const char*)errorMessage->GetBufferPointer();
infoLog.appendSanitized(message);
TRACE("\n%s", hlsl);
TRACE("\n%s", message);
SafeRelease(errorMessage);
}
if (SUCCEEDED(result))
{
return (ShaderBlob*)binary;
}
else
{
if (result == E_OUTOFMEMORY)
{
return gl::error(GL_OUT_OF_MEMORY, (ShaderBlob*)NULL);
}
infoLog.append("Warning: D3D shader compilation failed with %s flags.", flagNames[i]);
if (i + 1 < attempts)
{
infoLog.append(" Retrying with %s.\n", flagNames[i + 1]);
}
}
}
return NULL;
}
}
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