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only update vbo on changes in XFBSource::Draw 

Signed-off-by: Ryan Houdek <Sonicadvance1@gmail.com>
This commit is contained in:
degasus 2012-12-09 20:44:13 +01:00 committed by Ryan Houdek
parent 34b1451fbe
commit 1f1b32b663
1 changed files with 37 additions and 17 deletions
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54
Source/Plugins/Plugin_VideoOGL/Src/FramebufferManager.cpp
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@ -29,6 +29,8 @@ namespace OGL
extern bool s_bHaveFramebufferBlit; // comes from Render.cpp. ugly.
static GLuint s_VBO = 0;
static MathUtil::Rectangle<float> s_cached_sourcerc;
static MathUtil::Rectangle<float> s_cached_drawrc;
int FramebufferManager::m_targetWidth;
int FramebufferManager::m_targetHeight;
@ -56,6 +58,15 @@ FramebufferManager::FramebufferManager(int targetWidth, int targetHeight, int ms
m_resolvedDepthTexture = 0;
m_xfbFramebuffer = 0;
s_cached_sourcerc.bottom = -1;
s_cached_sourcerc.left = -1;
s_cached_sourcerc.right = -1;
s_cached_sourcerc.top = -1;
s_cached_drawrc.bottom = -1;
s_cached_drawrc.left = -1;
s_cached_drawrc.right = -1;
s_cached_drawrc.top = -1;
m_targetWidth = targetWidth;
m_targetHeight = targetHeight;
@ -311,23 +322,32 @@ void XFBSource::Draw(const MathUtil::Rectangle<float> &sourcerc,
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, texture);
GLfloat vertices[] = {
drawrc.left, drawrc.bottom,
sourcerc.left, sourcerc.bottom,
0.0f, 0.0f,
drawrc.left, drawrc.top,
sourcerc.left, sourcerc.top,
0.0f, 1.0f,
drawrc.right, drawrc.top,
sourcerc.right, sourcerc.top,
1.0f, 1.0f,
drawrc.right, drawrc.bottom,
sourcerc.right, sourcerc.bottom,
1.0f, 0.0f
};
glBindBuffer(GL_ARRAY_BUFFER, s_VBO);
glBufferData(GL_ARRAY_BUFFER, 2*4*3*sizeof(GLfloat), vertices, GL_STREAM_DRAW);
if(!(s_cached_sourcerc == sourcerc) || !(s_cached_drawrc == drawrc)) {
GLfloat vertices[] = {
drawrc.left, drawrc.bottom,
sourcerc.left, sourcerc.bottom,
0.0f, 0.0f,
drawrc.left, drawrc.top,
sourcerc.left, sourcerc.top,
0.0f, 1.0f,
drawrc.right, drawrc.top,
sourcerc.right, sourcerc.top,
1.0f, 1.0f,
drawrc.right, drawrc.bottom,
sourcerc.right, sourcerc.bottom,
1.0f, 0.0f
};
glBindBuffer(GL_ARRAY_BUFFER, s_VBO);
glBufferData(GL_ARRAY_BUFFER, 2*4*3*sizeof(GLfloat), vertices, GL_STREAM_DRAW);
s_cached_sourcerc = sourcerc;
s_cached_drawrc = drawrc;
}
else
{
// TODO: remove on VAO
glBindBuffer(GL_ARRAY_BUFFER, s_VBO);
}
// disable all pointer, TODO: use VAO
glEnableClientState(GL_VERTEX_ARRAY);