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/**************************************************************************
*
* Copyright 2011 Jose Fonseca
* Copyright 2008-2009 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
**************************************************************************/
#include <stdio.h>
#include "d3dshader.hpp"
#include "os.hpp"
struct ID3DXBuffer : public IUnknown {
virtual LPVOID STDMETHODCALLTYPE GetBufferPointer(void) = 0;
virtual DWORD STDMETHODCALLTYPE GetBufferSize(void) = 0;
};
typedef HRESULT
(WINAPI *PD3DXDISASSEMBLESHADER)(
CONST DWORD *pShader,
BOOL EnableColorCode,
LPCSTR pComments,
ID3DXBuffer **ppDisassembly
);
HRESULT
DisassembleShader(const DWORD *tokens, IDisassemblyBuffer **ppDisassembly)
{
static BOOL firsttime = TRUE;
/*
* TODO: Consider using d3dcompile_xx.dll per
* http://msdn.microsoft.com/en-us/library/windows/desktop/ee663275.aspx
*/
static HMODULE hD3DXModule = NULL;
static PD3DXDISASSEMBLESHADER pfnD3DXDisassembleShader = NULL;
if (firsttime) {
if (!hD3DXModule) {
unsigned release;
int version;
for (release = 0; release <= 1; ++release) {
/* Version 41 corresponds to Mar 2009 version of DirectX Runtime / SDK */
for (version = 41; version >= 0; --version) {
char filename[256];
_snprintf(filename, sizeof(filename),
"d3dx9%s%s%u.dll", release ? "" : "d", version ? "_" : "", version);
hD3DXModule = LoadLibraryA(filename);
if (hD3DXModule)
goto found;
}
}
found:
;
}
if (hD3DXModule) {
if (!pfnD3DXDisassembleShader) {
pfnD3DXDisassembleShader = (PD3DXDISASSEMBLESHADER)GetProcAddress(hD3DXModule, "D3DXDisassembleShader");
}
}
firsttime = FALSE;
}
HRESULT hr = E_FAIL;
if (pfnD3DXDisassembleShader) {
hr = pfnD3DXDisassembleShader(tokens, FALSE, NULL,
reinterpret_cast<ID3DXBuffer **>(ppDisassembly));
}
return hr;
}
struct ID3D10Blob : public IUnknown {
virtual LPVOID STDMETHODCALLTYPE GetBufferPointer(void) = 0;
virtual SIZE_T STDMETHODCALLTYPE GetBufferSize(void) = 0;
};
typedef ID3D10Blob ID3DBlob;
#define D3D_DISASM_ENABLE_COLOR_CODE 0x00000001
#define D3D_DISASM_ENABLE_DEFAULT_VALUE_PRINTS 0x00000002
#define D3D_DISASM_ENABLE_INSTRUCTION_NUMBERING 0x00000004
#define D3D_DISASM_ENABLE_INSTRUCTION_CYCLE 0x00000008
#define D3D_DISASM_DISABLE_DEBUG_INFO 0x00000010
#define D3D_DISASM_ENABLE_INSTRUCTION_OFFSET 0x00000020
#define D3D_DISASM_INSTRUCTION_ONLY 0x00000040
typedef HRESULT
(WINAPI *PFND3DDISASSEMBLE)(
LPCVOID pSrcData,
SIZE_T SrcDataSize,
UINT Flags,
LPCSTR szComments,
ID3DBlob **ppDisassembly
);
static PFND3DDISASSEMBLE pfnD3DDisassemble = NULL;
typedef HRESULT
(WINAPI *PFND3D10DISASSEMBLESHADER)(
const void *pShader,
SIZE_T BytecodeLength,
BOOL EnableColorCode,
LPCSTR pComments,
ID3D10Blob **ppDisassembly
);
static PFND3D10DISASSEMBLESHADER pfnD3D10DisassembleShader = NULL;
HRESULT
DisassembleShader(const void *pShaderBytecode, SIZE_T BytecodeLength, IDisassemblyBuffer **ppDisassembly)
{
static bool firsttime = true;
if (firsttime) {
char szFilename[MAX_PATH];
HMODULE hModule = NULL;
int version;
for (version = 47; version >= 33; --version) {
_snprintf(szFilename, sizeof(szFilename), "d3dcompiler_%i.dll", version);
hModule = LoadLibraryA(szFilename);
if (hModule) {
pfnD3DDisassemble = (PFND3DDISASSEMBLE)
GetProcAddress(hModule, "D3DDisassemble");
if (pfnD3DDisassemble) {
break;
}
}
}
if (!pfnD3DDisassemble) {
os::log("apitrace: warning: failed to load d3dcompiler_xx.dll\n");
/*
* Fallback to D3D10DisassembleShader, which should be always present.
*/
if (GetSystemDirectoryA(szFilename, MAX_PATH)) {
strcat(szFilename, "\\d3d10.dll");
hModule = LoadLibraryA(szFilename);
if (hModule) {
pfnD3D10DisassembleShader = (PFND3D10DISASSEMBLESHADER)
GetProcAddress(hModule, "D3D10DisassembleShader");
}
}
}
firsttime = false;
}
HRESULT hr = E_FAIL;
if (pfnD3DDisassemble) {
hr = pfnD3DDisassemble(pShaderBytecode, BytecodeLength, 0, NULL,
reinterpret_cast<ID3DBlob **>(ppDisassembly));
} else if (pfnD3D10DisassembleShader) {
hr = pfnD3D10DisassembleShader(pShaderBytecode, BytecodeLength, 0, NULL,
reinterpret_cast<ID3D10Blob **>(ppDisassembly));
}
return hr;
}
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