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https://gitea.wildfiregames.com/0ad/0ad
synced 2026-08-15 22:53:31 -07:00
127 lines
3 KiB
C++
Executable file
127 lines
3 KiB
C++
Executable file
#include "precompiled.h"
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#include "res/vfs.h"
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#include "res/mem.h"
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#include "renderer/VertexProgram.h"
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#include "graphics/ProgramManager.h"
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#include "renderer/Renderer.h"
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#include "maths/Vector3D.h"
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#include "graphics/LightEnv.h"
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#include "CLogger.h"
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#define LOG_CATEGORY "shaders"
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CVertexProgram::CVertexProgram(const char *file)
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{
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Load(file);
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}
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CVertexProgram::~CVertexProgram()
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{
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#ifdef BUILD_CG
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if(m_Program)
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cgDestroyProgram(m_Program);
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#endif
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}
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bool CVertexProgram::IsValid()
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{
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#ifdef BUILD_CG
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return (m_Program != NULL);
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#else
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return false;
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#endif
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}
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void CVertexProgram::Bind()
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{
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#ifdef BUILD_CG
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if(!IsValid())
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return;
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EnumParameters(CG_GLOBAL);
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EnumParameters(CG_PROGRAM);
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if(!cgGLIsProgramLoaded(m_Program))
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cgGLLoadProgram(m_Program);
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cgGLBindProgram(m_Program);
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#endif
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}
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void CVertexProgram::Load(const char *file)
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{
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#ifdef BUILD_CG
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m_Program = NULL;
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if(!file || !vfs_exists(file) || g_ProgramManager.GetVPProfile() == CG_PROFILE_UNKNOWN)
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return;
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void *data;
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size_t size;
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Handle h = vfs_load(file, data, size, 0);
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if(h <= 0)
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{
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LOG(ERROR, LOG_CATEGORY, "CVertexShader::LoadShader: vfs_load for %s failed!\n", file);
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return;
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}
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std::string src = (char*)data;
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mem_free_h(h);
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m_Program = cgCreateProgram(
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g_ProgramManager.GetContext(),
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CG_SOURCE,
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src.c_str(),
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g_ProgramManager.GetVPProfile(),
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"main",
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NULL
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);
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if(!m_Program)
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{
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LOG(ERROR, LOG_CATEGORY, "CVertexShader::LoadShader: Could not compile Cg shader: %s", cgGetErrorString(cgGetError()));
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return;
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}
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#endif
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}
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#ifdef BUILD_CG
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void CVertexProgram::EnumParameters(CGenum ns)
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{
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CGparameter param = cgGetFirstParameter(m_Program, ns);
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while(param)
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{
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PushParameter(param);
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param = cgGetNextParameter(param);
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}
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}
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void CVertexProgram::PushParameter(CGparameter param)
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{
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assert(param);
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std::string name = cgGetParameterName(param);
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if(name == "ModelViewProj")
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cgGLSetStateMatrixParameter(param, CG_GL_MODELVIEW_PROJECTION_MATRIX, CG_GL_MATRIX_IDENTITY);
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else if(name == "ModelView")
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cgGLSetStateMatrixParameter(param, CG_GL_MODELVIEW_MATRIX, CG_GL_MATRIX_IDENTITY);
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else if(name == "Projection")
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cgGLSetStateMatrixParameter(param, CG_GL_PROJECTION_MATRIX, CG_GL_MATRIX_IDENTITY);
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else if(name == "Texture")
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cgGLSetStateMatrixParameter(param, CG_GL_TEXTURE_MATRIX, CG_GL_MATRIX_IDENTITY);
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else if(name == "SunDir")
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{
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cgGLSetParameterPointer(
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param, sizeof(CVector3D), GL_FLOAT, sizeof(float), &g_Renderer.GetLightEnv().m_SunDir.X
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);
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}
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else if(name == "SunColor")
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{
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cgGLSetParameterPointer(
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param, sizeof(CVector3D), GL_FLOAT, sizeof(float), &g_Renderer.GetLightEnv().m_SunColor.X
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);
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}
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else
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LOG(WARNING, LOG_CATEGORY, "CVertexShader::LoadShader: Unknown parameter name: %s", name.c_str());
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}
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#endif
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