preserve-emulation/pcsx2
1
0
Fork 0
mirror of https://github.com/PCSX2/pcsx2.git synced 2026-09-10 14:52:58 +02:00
Code Issues Packages Projects Releases Wiki Activity

gsdx-ogl: optimize GPU->CPU memory transfer size

Browse Source 
Might help for snow engine game (a little)

Previous code use to read the full texture whereas now it will be limited
to the size of the useful data.
This commit is contained in:
Gregory Hainaut
2016-03-18 20:24:42 +01:00
parent 490cb757bf
commit da741e294e
2 changed files with 8 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
plugins/GSdx/GSTextureCacheOGL.cpp
+2 -1
View File
@@ -83,8 +83,9 @@ void GSTextureCacheOGL::Read(Target* t, const GSVector4i& r)
if(GSTexture* offscreen = m_renderer->m_dev->CopyOffscreen(t->m_texture, src, r.width(), r.height(), fmt, ps_shader))
{
GSTexture::GSMap m;
GSVector4i r_offscreen(0, 0, r.width(), r.height());
if(offscreen->Map(m))
if(offscreen->Map(m, &r_offscreen))
{
// TODO: block level write
plugins/GSdx/GSTextureOGL.cpp
+6 -1
View File
@@ -396,6 +396,7 @@ bool GSTextureOGL::Map(GSMap& m, const GSVector4i* r)
#if 0
// Maybe it is as good as the code below. I don't know
// With openGL 4.5 you can use glGetTextureSubImage
glGetTextureImage(m_texture_id, GL_TEX_LEVEL_0, m_int_format, m_int_type, 1024*1024*16, m_local_buffer);
@@ -406,7 +407,11 @@ bool GSTextureOGL::Map(GSMap& m, const GSVector4i* r)
glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_texture_id, 0);
glPixelStorei(GL_PACK_ALIGNMENT, m_int_alignment);
glReadPixels(0, 0, m_size.x, m_size.y, m_int_format, m_int_type, m_local_buffer);
if (r)
glReadPixels(r->x, r->y, r->width(), r->height(), m_int_format, m_int_type, m_local_buffer);
else
glReadPixels(0, 0, m_size.x, m_size.y, m_int_format, m_int_type, m_local_buffer);
glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
#endif