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GLSL: store and use exact ubo sizes

This commit is contained in:
degasus 2013-03-17 16:49:42 +01:00
parent 612c2e8516
commit 106d7c37e8
2 changed files with 10 additions and 6 deletions
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14
Source/Plugins/Plugin_VideoOGL/Src/ProgramShaderCache.cpp
View File

@ -27,6 +27,8 @@ namespace OGL
static const u32 UBO_LENGTH = 32*1024*1024;
GLintptr ProgramShaderCache::s_vs_data_size;
GLintptr ProgramShaderCache::s_ps_data_size;
GLintptr ProgramShaderCache::s_vs_data_offset;
u8 *ProgramShaderCache::s_ubo_buffer;
u32 ProgramShaderCache::s_ubo_buffer_size;
@ -169,8 +171,8 @@ void ProgramShaderCache::UploadConstants()
if(s_ubo_dirty) {
s_buffer->Alloc(s_ubo_buffer_size);
size_t offset = s_buffer->Upload(s_ubo_buffer, s_ubo_buffer_size);
glBindBufferRange(GL_UNIFORM_BUFFER, 1, s_buffer->getBuffer(), offset, s_vs_data_offset);
glBindBufferRange(GL_UNIFORM_BUFFER, 2, s_buffer->getBuffer(), offset + s_vs_data_offset, s_ubo_buffer_size - s_vs_data_offset);
glBindBufferRange(GL_UNIFORM_BUFFER, 1, s_buffer->getBuffer(), offset, s_ps_data_size);
glBindBufferRange(GL_UNIFORM_BUFFER, 2, s_buffer->getBuffer(), offset + s_vs_data_offset, s_vs_data_size);
s_ubo_dirty = false;
}
}
@ -388,10 +390,10 @@ void ProgramShaderCache::Init(void)
GLint Align;
glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, &Align);
GLintptr const ps_data_size = ROUND_UP(C_PENVCONST_END * sizeof(float) * 4, Align);
GLintptr const vs_data_size = ROUND_UP(C_VENVCONST_END * sizeof(float) * 4, Align);
s_vs_data_offset = ps_data_size;
s_ubo_buffer_size = ps_data_size + vs_data_size;
s_ps_data_size = C_PENVCONST_END * sizeof(float) * 4;
s_vs_data_size = C_VENVCONST_END * sizeof(float) * 4;
s_vs_data_offset = ROUND_UP(s_ps_data_size, Align);
s_ubo_buffer_size = ROUND_UP(s_ps_data_size, Align) + ROUND_UP(s_vs_data_size, Align);
// We multiply by *4*4 because we need to get down to basic machine units.
// So multiply by four to get how many floats we have from vec4s

2
Source/Plugins/Plugin_VideoOGL/Src/ProgramShaderCache.h
View File

@ -125,6 +125,8 @@ private:
static PCacheEntry* last_entry;
static SHADERUID last_uid;
static GLintptr s_vs_data_size;
static GLintptr s_ps_data_size;
static GLintptr s_vs_data_offset;
static u8 *s_ubo_buffer;
static u32 s_ubo_buffer_size;