GSTexture* GSRendererHW::GetOutput(int i, int& y_offset)
{
const GSRegDISPFB& DISPFB = m_regs->DISP[i].DISPFB;
GIFRegTEX0 TEX0;
TEX0.TBP0 = DISPFB.Block();
TEX0.TBW = DISPFB.FBW;
TEX0.PSM = DISPFB.PSM;
// TRACE(_T("[%d] GetOutput %d %05x (%d)\n"), (int)m_perfmon.GetFrame(), i, (int)TEX0.TBP0, (int)TEX0.PSM);
GSTexture* t = NULL;
if(GSTextureCache::Target* rt = m_tc->LookupTarget(TEX0, m_width, m_height, GetFrameRect(i).bottom))
{
t = rt->m_texture;
int delta = TEX0.TBP0 - rt->m_TEX0.TBP0;
if (delta > 0) {
// Code was corrected to use generic format. But I'm not sure behavior is correct.
// Let's keep the warning to easily spot game that trigger this code path.
#ifndef DISABLE_WIP_ASSERTION
ASSERT(DISPFB.PSM == PSM_PSMCT32 || DISPFB.PSM == PSM_PSMCT24);
#endif
int pages = delta >> 5u;
int y_pages = pages / DISPFB.FBW;
y_offset = y_pages * GSLocalMemory::m_psm[DISPFB.PSM].pgs.y;
GL_CACHE("Frame y offset %d pixels, unit %d", y_offset, i);
}
void GSTextureCacheOGL::Read(Target* t, const GSVector4i& r)
{
if(!t->m_dirty.empty())
{
return;
}
const GIFRegTEX0& TEX0 = t->m_TEX0;
GLuint fmt;
int ps_shader;
switch (TEX0.PSM)
{
case PSM_PSMCT32:
case PSM_PSMCT24:
fmt = GL_RGBA8;
ps_shader = 0;
break;
case PSM_PSMCT16:
case PSM_PSMCT16S:
fmt = GL_R16UI;
ps_shader = 1;
break;
case PSM_PSMZ32:
fmt = GL_R32UI;
ps_shader = 10;
break;
case PSM_PSMZ24:
fmt = GL_R32UI;
ps_shader = 10;
break;
case PSM_PSMZ16:
case PSM_PSMZ16S:
fmt = GL_R16UI;
ps_shader = 10;
break;
default:
return;
}
// Yes lots of logging, but I'm not confident with this code
GL_PUSH("Texture Cache Read. Format(0x%x)", TEX0.PSM);
GL_CACHE("TC: Read Back Target: %d (0x%x)[fmt: 0x%x]",
t->m_texture->GetID(), TEX0.TBP0, TEX0.PSM);
GL_PERF("Read texture from GPU. Format(0x%x)", TEX0.PSM);
GSVector4 src = GSVector4(r) * GSVector4(t->m_texture->GetScale()).xyxy() / GSVector4(t->m_texture->GetSize()).xyxy();
if(GSTexture* offscreen = m_renderer->m_dev->CopyOffscreen(t->m_texture, src, r.width(), r.height(), fmt, ps_shader))
{
GSTexture::GSMap m;
if(offscreen->Map(m))
{
// TODO: block level write
GSOffset* off = m_renderer->m_mem.GetOffset(TEX0.TBP0, TEX0.TBW, TEX0.PSM);
switch(TEX0.PSM)
{
case PSM_PSMCT32:
m_renderer->m_mem.WritePixel32(m.bits, m.pitch, off, r);
break;
case PSM_PSMCT24:
m_renderer->m_mem.WritePixel24(m.bits, m.pitch, off, r);
break;
case PSM_PSMCT16:
case PSM_PSMCT16S:
m_renderer->m_mem.WritePixel16(m.bits, m.pitch, off, r);
break;
case PSM_PSMZ32:
m_renderer->m_mem.WritePixel32(m.bits, m.pitch, off, r);
break;
case PSM_PSMZ24:
m_renderer->m_mem.WritePixel24(m.bits, m.pitch, off, r);
break;
case PSM_PSMZ16:
case PSM_PSMZ16S:
m_renderer->m_mem.WritePixel16(m.bits, m.pitch, off, r);
break;
default:
ASSERT(0);
}
offscreen->Unmap();
}
// FIXME invalidate data
m_renderer->m_dev->Recycle(offscreen);
}
GL_POP();
}
