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// Copyright (C) 2003 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#include <d3dx9.h>
#include <string>
#include "VideoConfig.h"
#include "D3DShader.h"
namespace DX9
{
namespace D3D
{
// bytecode->shader.
LPDIRECT3DVERTEXSHADER9 CreateVertexShaderFromByteCode(const u8 *bytecode, int len)
{
LPDIRECT3DVERTEXSHADER9 v_shader;
HRESULT hr = D3D::dev->CreateVertexShader((DWORD *)bytecode, &v_shader);
if (FAILED(hr))
{
PanicAlert("CreateVertexShaderFromByteCode failed from %p (size %d) at %s %d\n", bytecode, len, __FILE__, __LINE__);
v_shader = NULL;
}
return v_shader;
}
// code->bytecode.
bool CompileVertexShader(const char *code, int len, u8 **bytecode, int *bytecodelen)
{
LPD3DXBUFFER shaderBuffer = NULL;
LPD3DXBUFFER errorBuffer = NULL;
HRESULT hr = PD3DXCompileShader(code, len, 0, 0, "main", D3D::VertexShaderVersionString(),
0, &shaderBuffer, &errorBuffer, 0);
if (FAILED(hr))
{
//compilation error
if (g_ActiveConfig.bShowShaderErrors) {
std::string hello = (char*)errorBuffer->GetBufferPointer();
hello += "\n\n";
hello += code;
MessageBoxA(0, hello.c_str(), "Error compiling vertex shader", MB_ICONERROR);
}
*bytecode = 0;
*bytecodelen = 0;
}
else if (SUCCEEDED(hr))
{
*bytecodelen = shaderBuffer->GetBufferSize();
*bytecode = new u8[*bytecodelen];
memcpy(*bytecode, shaderBuffer->GetBufferPointer(), *bytecodelen);
}
//cleanup
if (shaderBuffer)
shaderBuffer->Release();
if (errorBuffer)
errorBuffer->Release();
return SUCCEEDED(hr) ? true : false;
}
// bytecode->shader
LPDIRECT3DPIXELSHADER9 CreatePixelShaderFromByteCode(const u8 *bytecode, int len)
{
LPDIRECT3DPIXELSHADER9 p_shader;
HRESULT hr = D3D::dev->CreatePixelShader((DWORD *)bytecode, &p_shader);
if (FAILED(hr))
{
PanicAlert("CreatePixelShaderFromByteCode failed at %s %d\n", __FILE__, __LINE__);
p_shader = NULL;
}
return p_shader;
}
// code->bytecode
bool CompilePixelShader(const char *code, int len, u8 **bytecode, int *bytecodelen)
{
LPD3DXBUFFER shaderBuffer = 0;
LPD3DXBUFFER errorBuffer = 0;
// Someone:
// For some reason, I had this kind of errors : "Shader uses texture addressing operations
// in a dependency chain that is too complex for the target shader model (ps_2_0) to handle."
HRESULT hr = PD3DXCompileShader(code, len, 0, 0, "main", D3D::PixelShaderVersionString(),
0, &shaderBuffer, &errorBuffer, 0);
if (FAILED(hr))
{
if (g_ActiveConfig.bShowShaderErrors) {
std::string hello = (char*)errorBuffer->GetBufferPointer();
hello += "\n\n";
hello += code;
MessageBoxA(0, hello.c_str(), "Error compiling pixel shader", MB_ICONERROR);
}
*bytecode = 0;
*bytecodelen = 0;
}
else if (SUCCEEDED(hr))
{
*bytecodelen = shaderBuffer->GetBufferSize();
*bytecode = new u8[*bytecodelen];
memcpy(*bytecode, shaderBuffer->GetBufferPointer(), *bytecodelen);
}
//cleanup
if (shaderBuffer)
shaderBuffer->Release();
if (errorBuffer)
errorBuffer->Release();
return SUCCEEDED(hr) ? true : false;
}
LPDIRECT3DVERTEXSHADER9 CompileAndCreateVertexShader(const char *code, int len)
{
u8 *bytecode;
int bytecodelen;
if (CompileVertexShader(code, len, &bytecode, &bytecodelen))
{
LPDIRECT3DVERTEXSHADER9 v_shader = CreateVertexShaderFromByteCode(bytecode, len);
delete [] bytecode;
return v_shader;
}
PanicAlert("Failed to compile and create vertex shader from %p (size %d) at %s %d\n", code, len, __FILE__, __LINE__);
return NULL;
}
LPDIRECT3DPIXELSHADER9 CompileAndCreatePixelShader(const char* code, unsigned int len)
{
u8 *bytecode;
int bytecodelen;
if (CompilePixelShader(code, len, &bytecode, &bytecodelen))
{
LPDIRECT3DPIXELSHADER9 p_shader = CreatePixelShaderFromByteCode(bytecode, len);
delete [] bytecode;
return p_shader;
}
PanicAlert("Failed to compile and create pixel shader, %s %d\n", __FILE__, __LINE__);
return NULL;
}
} // namespace
} // namespace DX9
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