The-Homebrew-Cloud/dolphin
2
0
Fork 0
mirror of https://github.com/dolphin-emu/dolphin.git synced 2025-01-27 00:05:34 +01:00
Code Issues Packages Projects Releases Wiki Activity

Make sure our UBO buffers are always aligned correctly.

Browse Source
This commit is contained in:
Ryan Houdek 2011-12-10 15:52:20 -06:00
parent 97c3c156e6
commit c678172f32
1 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
Source/Plugins/Plugin_VideoOGL/Src/ProgramShaderCache.cpp
View File

@ -164,20 +164,26 @@ namespace OGL
} }
void ProgramShaderCache::Init(void) void ProgramShaderCache::Init(void)
{ {
// We have to get the UBO alignment here because
// if we generate a buffer that isn't aligned
// then the UBO will fail.
GLint Align;
glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, &Align);
glGenBuffers(2, UBOBuffers); glGenBuffers(2, UBOBuffers);
glBindBuffer(GL_UNIFORM_BUFFER, UBOBuffers[0]); glBindBuffer(GL_UNIFORM_BUFFER, UBOBuffers[0]);
// We multiply by *4*4 because we need to get down to basic machine units. // 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 // So multiply by four to get how many floats we have from vec4s
// Then once more to get bytes // Then once more to get bytes
glBufferData(GL_UNIFORM_BUFFER, C_PENVCONST_END * 4 * 4, NULL, GL_DYNAMIC_DRAW); glBufferData(GL_UNIFORM_BUFFER, (C_PENVCONST_END * 4 * 4) - (C_PENVCONST_END * 4 * 4 % Align) + Align, NULL, GL_DYNAMIC_DRAW);
// Now bind the buffer to the index point // Now bind the buffer to the index point
// We know PS is 0 since we have it statically set in the shader // We know PS is 0 since we have it statically set in the shader
glBindBufferBase(GL_UNIFORM_BUFFER, 1, UBOBuffers[0]); glBindBufferBase(GL_UNIFORM_BUFFER, 1, UBOBuffers[0]);
// Repeat for VS shader // Repeat for VS shader
glBindBuffer(GL_UNIFORM_BUFFER, UBOBuffers[1]); glBindBuffer(GL_UNIFORM_BUFFER, UBOBuffers[1]);
glBufferData(GL_UNIFORM_BUFFER, 1024 * 1024, NULL, GL_DYNAMIC_DRAW); glBufferData(GL_UNIFORM_BUFFER, (C_VENVCONST_END * 4 * 4) - (C_VENVCONST_END * 4 * 4 % Align) + Align, NULL, GL_DYNAMIC_DRAW);
glBindBufferBase(GL_UNIFORM_BUFFER, 2, UBOBuffers[1]); glBindBufferBase(GL_UNIFORM_BUFFER, 2, UBOBuffers[1]);
} }
void ProgramShaderCache::Shutdown(void) void ProgramShaderCache::Shutdown(void)