void Sync() {
uint32 segment_current = m_offset / m_seg_size;
uint32 segment_next = (m_offset + m_size) / m_seg_size;
if (segment_current != segment_next) {
if (segment_next >= countof(m_fence)) {
segment_next = 0;
}
// Align current transfer on the start of the segment
m_offset = m_seg_size * segment_next;
// protect the left segment
m_fence[segment_current] = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
// Check next segment is free
if (m_fence[segment_next]) {
GLenum status = glClientWaitSync(m_fence[segment_next], GL_SYNC_FLUSH_COMMANDS_BIT, GL_TIMEOUT_IGNORED);
// Potentially it doesn't work on AMD driver which might always return GL_CONDITION_SATISFIED
if (status != GL_ALREADY_SIGNALED) {
GL_PERF("GL_PIXEL_UNPACK_BUFFER: Sync Sync (%x)! Buffer too small ?", status);
}
glDeleteSync(m_fence[segment_next]);
m_fence[segment_next] = 0;
}
}
}
EXPORT_C GSinitReadFIFO2(uint8* mem, uint32 size)
{
GL_PERF("Init Read FIFO2");
try
{
s_gs->InitReadFIFO(mem, size);
}
catch (GSDXRecoverableError)
{
}
}
EXPORT_C GSinitReadFIFO(uint8* mem)
{
GL_PERF("Init Read FIFO1");
try
{
s_gs->InitReadFIFO(mem, 1);
}
catch (GSDXRecoverableError)
{
}
}
EXPORT_C GSinitReadFIFO2(uint8* mem, uint32 size)
{
GL_PERF("Init Read FIFO2");
try
{
s_gs->InitReadFIFO(mem, size);
}
catch (GSDXRecoverableError)
{
}
catch (const std::bad_alloc&)
{
fprintf(stderr, "GSdx: Memory allocation error\n");
}
}
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);
}
}