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make use of glMapBuffer to set ubo data

This commit is contained in:
Jordan Woyak 2011-12-11 05:13:05 -06:00
parent 16b58a8825
commit 5ae1f674f5
3 changed files with 55 additions and 7 deletions
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56
Source/Plugins/Plugin_VideoOGL/Src/ProgramShaderCache.cpp
View File

@ -25,6 +25,8 @@ namespace OGL
ProgramShaderCache::PCache ProgramShaderCache::pshaders;
GLuint ProgramShaderCache::s_ps_ubo;
GLuint ProgramShaderCache::s_vs_ubo;
float* ProgramShaderCache::s_ps_mapped_data;
float* ProgramShaderCache::s_vs_mapped_data;
std::pair<u64, u64> ProgramShaderCache::CurrentShaderProgram;
const char *UniformNames[NUM_UNIFORMS] = {
@ -142,18 +144,55 @@ namespace OGL
void ProgramShaderCache::SetMultiPSConstant4fv(unsigned int offset, const float *f, unsigned int count)
{
glBindBuffer(GL_UNIFORM_BUFFER, s_ps_ubo);
glBufferSubData(GL_UNIFORM_BUFFER, offset * sizeof(float) * 4, count * sizeof(float) * 4, f);
glBindBuffer(GL_UNIFORM_BUFFER, 0);
if (!s_ps_mapped_data)
{
glBindBuffer(GL_UNIFORM_BUFFER, s_ps_ubo);
s_ps_mapped_data = reinterpret_cast<float*>(glMapBuffer(GL_UNIFORM_BUFFER, GL_WRITE_ONLY));
glBindBuffer(GL_UNIFORM_BUFFER, 0);
if (!s_ps_mapped_data)
PanicAlert("glMapBuffer");
}
std::copy(f, f + count * 4, s_ps_mapped_data + offset * 4);
}
void ProgramShaderCache::SetMultiVSConstant4fv(unsigned int offset, const float *f, unsigned int count)
{
glBindBuffer(GL_UNIFORM_BUFFER, s_vs_ubo);
glBufferSubData(GL_UNIFORM_BUFFER, offset * sizeof(float) * 4, count * sizeof(float) * 4, f);
if (!s_vs_mapped_data)
{
glBindBuffer(GL_UNIFORM_BUFFER, s_vs_ubo);
s_vs_mapped_data = reinterpret_cast<float*>(glMapBuffer(GL_UNIFORM_BUFFER, GL_WRITE_ONLY));
glBindBuffer(GL_UNIFORM_BUFFER, 0);
if (!s_vs_mapped_data)
PanicAlert("glMapBuffer");
}
std::copy(f, f + count * 4, s_vs_mapped_data + offset * 4);
}
void ProgramShaderCache::FlushConstants()
{
if (s_ps_mapped_data)
{
glBindBuffer(GL_UNIFORM_BUFFER, s_ps_ubo);
if (!glUnmapBuffer(GL_UNIFORM_BUFFER))
PanicAlert("glUnmapBuffer");
s_ps_mapped_data = NULL;
}
if (s_vs_mapped_data)
{
glBindBuffer(GL_UNIFORM_BUFFER, s_vs_ubo);
if (!glUnmapBuffer(GL_UNIFORM_BUFFER))
PanicAlert("glUnmapBuffer");
s_vs_mapped_data = NULL;
}
glBindBuffer(GL_UNIFORM_BUFFER, 0);
}
GLuint ProgramShaderCache::GetCurrentProgram(void) { return CurrentProgram; }
GLint ProgramShaderCache::GetAttr(int num)
@ -200,8 +239,11 @@ namespace OGL
iter->second.Destroy();
pshaders.clear();
// "A buffer object's mapped data store is automatically unmapped when the buffer object is deleted"
glDeleteBuffers(1, &s_ps_ubo);
glDeleteBuffers(1, &s_ps_ubo);
glDeleteBuffers(1, &s_vs_ubo);
s_ps_ubo = s_vs_ubo = 0;
s_ps_mapped_data = s_vs_mapped_data = NULL;
}
}

3
Source/Plugins/Plugin_VideoOGL/Src/ProgramShaderCache.h
View File

@ -96,6 +96,7 @@ class ProgramShaderCache
static std::pair<u64, u64> CurrentShaderProgram;
static GLuint s_ps_ubo, s_vs_ubo;
static float *s_ps_mapped_data, *s_vs_mapped_data;
public:
static PROGRAMSHADER GetShaderProgram(void);
static GLint GetAttr(int num);
@ -104,6 +105,8 @@ public:
static void SetMultiPSConstant4fv(unsigned int offset, const float *f, unsigned int count);
static void SetMultiVSConstant4fv(unsigned int offset, const float *f, unsigned int count);
static void FlushConstants();
static void Init(void);
static void Shutdown(void);

3
Source/Plugins/Plugin_VideoOGL/Src/VertexManager.cpp
View File

@ -214,6 +214,9 @@ void VertexManager::vFlush()
// set global constants
VertexShaderManager::SetConstants();
PixelShaderManager::SetConstants();
if(g_ActiveConfig.bUseGLSL && g_ActiveConfig.backend_info.bSupportsGLSLUBO)
ProgramShaderCache::FlushConstants();
// setup the pointers
if (g_nativeVertexFmt)