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first try of primitive restart index generator

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Convert all quads+triangles into trangle_strip and uses primitive restart to split them.
Speed up triangle_strip, but slows down all others primitive formats.
Only implemented in ogl.
This commit is contained in:
degasus
2013-03-29 14:27:33 +01:00
parent c743e75d92
commit ca8554e7d1
8 changed files with 102 additions and 33 deletions
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4
Source/Plugins/Plugin_VideoOGL/Src/VertexManager.cpp
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@ -127,7 +127,7 @@ void VertexManager::Draw(u32 stride)
if(g_ogl_config.bSupportsGLBaseVertex) {
if (triangle_index_size > 0)
{
glDrawElementsBaseVertex(GL_TRIANGLES, triangle_index_size, GL_UNSIGNED_SHORT, (u8*)NULL+s_offset[0], s_baseVertex);
glDrawElementsBaseVertex(g_ActiveConfig.backend_info.bSupportsPrimitiveRestart?GL_TRIANGLE_STRIP:GL_TRIANGLES, triangle_index_size, GL_UNSIGNED_SHORT, (u8*)NULL+s_offset[0], s_baseVertex);
INCSTAT(stats.thisFrame.numIndexedDrawCalls);
}
if (line_index_size > 0)
@ -143,7 +143,7 @@ void VertexManager::Draw(u32 stride)
} else {
if (triangle_index_size > 0)
{
glDrawElements(GL_TRIANGLES, triangle_index_size, GL_UNSIGNED_SHORT, (u8*)NULL+s_offset[0]);
glDrawElements(g_ActiveConfig.backend_info.bSupportsPrimitiveRestart?GL_TRIANGLE_STRIP:GL_TRIANGLES, triangle_index_size, GL_UNSIGNED_SHORT, (u8*)NULL+s_offset[0]);
INCSTAT(stats.thisFrame.numIndexedDrawCalls);
}
if (line_index_size > 0)