void GSTextureCacheOGL::Read(Source* t, const GSVector4i& r)
{
const GIFRegTEX0& TEX0 = t->m_TEX0;
// FIXME Create a get function to avoid the useless copy
// Note: With openGL 4.5 you can use glGetTextureSubImage
if (GSTexture* offscreen = m_renderer->m_dev->CreateOffscreen(r.width(), r.height())) {
m_renderer->m_dev->CopyRect(t->m_texture, offscreen, r);
GSTexture::GSMap m;
GSVector4i r_offscreen(0, 0, r.width(), r.height());
if (offscreen->Map(m, &r_offscreen)) {
GSOffset* off = m_renderer->m_mem.GetOffset(TEX0.TBP0, TEX0.TBW, TEX0.PSM);
m_renderer->m_mem.WritePixel32(m.bits, m.pitch, off, r);
offscreen->Unmap();
}
// FIXME invalidate data
m_renderer->m_dev->Recycle(offscreen);
}
}
void GSTextureCache11::Read(Source* t, const GSVector4i& r)
{
// FIXME: copy was copyied from openGL. It is unlikely to work.
const GIFRegTEX0& TEX0 = t->m_TEX0;
if (GSTexture* offscreen = m_renderer->m_dev->CreateOffscreen(r.width(), r.height())) {
m_renderer->m_dev->CopyRect(t->m_texture, offscreen, r);
GSTexture::GSMap m;
GSVector4i r_offscreen(0, 0, r.width(), r.height());
if (offscreen->Map(m, &r_offscreen)) {
GSOffset* off = m_renderer->m_mem.GetOffset(TEX0.TBP0, TEX0.TBW, TEX0.PSM);
m_renderer->m_mem.WritePixel32(m.bits, m.pitch, off, r);
offscreen->Unmap();
}
// FIXME invalidate data
m_renderer->m_dev->Recycle(offscreen);
}
}
void GSTextureCacheOGL::Read(Target* t, const GSVector4i& r)
{
if (!t->m_dirty.empty() || r.width() == 0 || r.height() == 0)
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 = ShaderConvert_COPY;
break;
case PSM_PSMCT16:
case PSM_PSMCT16S:
fmt = GL_R16UI;
ps_shader = ShaderConvert_RGBA8_TO_16_BITS;
break;
case PSM_PSMZ32:
fmt = GL_R32UI;
ps_shader = ShaderConvert_FLOAT32_TO_32_BITS;
break;
case PSM_PSMZ24:
fmt = GL_R32UI;
ps_shader = ShaderConvert_FLOAT32_TO_32_BITS;
break;
case PSM_PSMZ16:
case PSM_PSMZ16S:
fmt = GL_R16UI;
ps_shader = ShaderConvert_FLOAT32_TO_32_BITS;
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_PERF("TC: Read Back Target: %d (0x%x)[fmt: 0x%x]. Size %dx%d",
t->m_texture->GetID(), TEX0.TBP0, TEX0.PSM, r.width(), r.height());
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;
GSVector4i r_offscreen(0, 0, r.width(), r.height());
if(offscreen->Map(m, &r_offscreen))
{
// 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);
}
}
