GSTexture* GPURendererSW::GetOutput()
{
GSVector4i r = m_env.GetDisplayRect();
r.left <<= m_scale.x;
r.top <<= m_scale.y;
r.right <<= m_scale.x;
r.bottom <<= m_scale.y;
if(m_dev->ResizeTexture(&m_texture, r.width(), r.height()))
{
m_mem.ReadFrame32(r, m_output, !!m_env.STATUS.ISRGB24);
m_texture->Update(r.rsize(), m_output, m_mem.GetWidth() * sizeof(uint32));
}
return m_texture;
}
bool GSRenderer::Merge(int field)
{
bool en[2];
GSVector4i fr[2];
GSVector4i dr[2];
GSVector2i display_baseline = { INT_MAX, INT_MAX };
GSVector2i frame_baseline = { INT_MAX, INT_MAX };
for(int i = 0; i < 2; i++)
{
en[i] = IsEnabled(i);
if(en[i])
{
fr[i] = GetFrameRect(i);
dr[i] = GetDisplayRect(i);
display_baseline.x = min(dr[i].left, display_baseline.x);
display_baseline.y = min(dr[i].top, display_baseline.y);
frame_baseline.x = min(fr[i].left, frame_baseline.x);
frame_baseline.y = min(fr[i].top, frame_baseline.y);
//printf("[%d]: %d %d %d %d, %d %d %d %d\n", i, fr[i].x,fr[i].y,fr[i].z,fr[i].w , dr[i].x,dr[i].y,dr[i].z,dr[i].w);
}
}
if(!en[0] && !en[1])
{
return false;
}
GL_PUSH("Renderer Merge %d (0: enabled %d 0x%x, 1: enabled %d 0x%x)", s_n, en[0], m_regs->DISP[0].DISPFB.Block(), en[1], m_regs->DISP[1].DISPFB.Block());
// try to avoid fullscreen blur, could be nice on tv but on a monitor it's like double vision, hurts my eyes (persona 4, guitar hero)
//
// NOTE: probably the technique explained in graphtip.pdf (Antialiasing by Supersampling / 4. Reading Odd/Even Scan Lines Separately with the PCRTC then Blending)
bool samesrc =
en[0] && en[1] &&
m_regs->DISP[0].DISPFB.FBP == m_regs->DISP[1].DISPFB.FBP &&
m_regs->DISP[0].DISPFB.FBW == m_regs->DISP[1].DISPFB.FBW &&
m_regs->DISP[0].DISPFB.PSM == m_regs->DISP[1].DISPFB.PSM;
if(samesrc /*&& m_regs->PMODE.SLBG == 0 && m_regs->PMODE.MMOD == 1 && m_regs->PMODE.ALP == 0x80*/)
{
// persona 4:
//
// fr[0] = 0 0 640 448
// fr[1] = 0 1 640 448
// dr[0] = 159 50 779 498
// dr[1] = 159 50 779 497
//
// second image shifted up by 1 pixel and blended over itself
//
// god of war:
//
// fr[0] = 0 1 512 448
// fr[1] = 0 0 512 448
// dr[0] = 127 50 639 497
// dr[1] = 127 50 639 498
//
// same just the first image shifted
//
// These kinds of cases are now fixed by the more generic frame_diff code below, as the code here was too specific and has become obsolete.
// NOTE: Persona 4 and God Of War are not rare exceptions, many games have the same(or very similar) offsets.
int topDiff = fr[0].top - fr[1].top;
if (dr[0].eq(dr[1]) && (fr[0].eq(fr[1] + GSVector4i(0, topDiff, 0, topDiff)) || fr[1].eq(fr[0] + GSVector4i(0, topDiff, 0, topDiff))))
{
// dq5:
//
// fr[0] = 0 1 512 445
// fr[1] = 0 0 512 444
// dr[0] = 127 50 639 494
// dr[1] = 127 50 639 494
int top = min(fr[0].top, fr[1].top);
int bottom = min(fr[0].bottom, fr[1].bottom);
fr[0].top = fr[1].top = top;
fr[0].bottom = fr[1].bottom = bottom;
}
}
GSVector2i fs(0, 0);
GSVector2i ds(0, 0);
GSTexture* tex[3] = {NULL, NULL, NULL};
int y_offset[3] = {0, 0, 0};
s_n++;
bool feedback_merge = m_regs->EXTWRITE.WRITE == 1;
if(samesrc && fr[0].bottom == fr[1].bottom && !feedback_merge)
{
tex[0] = GetOutput(0, y_offset[0]);
tex[1] = tex[0]; // saves one texture fetch
y_offset[1] = y_offset[0];
}
else
{
if(en[0]) tex[0] = GetOutput(0, y_offset[0]);
if(en[1]) tex[1] = GetOutput(1, y_offset[1]);
if(feedback_merge) tex[2] = GetFeedbackOutput();
}
GSVector4 src[2];
GSVector4 src_hw[2];
GSVector4 dst[2];
for(int i = 0; i < 2; i++)
{
if(!en[i] || !tex[i]) continue;
GSVector4i r = fr[i];
GSVector4 scale = GSVector4(tex[i]->GetScale()).xyxy();
src[i] = GSVector4(r) * scale / GSVector4(tex[i]->GetSize()).xyxy();
src_hw[i] = (GSVector4(r) + GSVector4 (0, y_offset[i], 0, y_offset[i])) * scale / GSVector4(tex[i]->GetSize()).xyxy();
GSVector2 off(0);
GSVector2i display_diff(dr[i].left - display_baseline.x, dr[i].top - display_baseline.y);
GSVector2i frame_diff(fr[i].left - frame_baseline.x, fr[i].top - frame_baseline.y);
// Time Crisis 2/3 uses two side by side images when in split screen mode.
// Though ignore cases where baseline and display rectangle offsets only differ by 1 pixel, causes blurring and wrong resolution output on FFXII
if(display_diff.x > 2)
{
off.x = tex[i]->GetScale().x * display_diff.x;
}
// If the DX offset is too small then consider the status of frame memory offsets, prevents blurring on Tenchu: Fatal Shadows, Worms 3D
else if(display_diff.x != frame_diff.x)
{
off.x = tex[i]->GetScale().x * frame_diff.x;
}
if(display_diff.y >= 4) // Shouldn't this be >= 2?
{
off.y = tex[i]->GetScale().y * display_diff.y;
if(m_regs->SMODE2.INT && m_regs->SMODE2.FFMD)
{
off.y /= 2;
}
}
else if(display_diff.y != frame_diff.y)
{
off.y = tex[i]->GetScale().y * frame_diff.y;
}
dst[i] = GSVector4(off).xyxy() + scale * GSVector4(r.rsize());
fs.x = max(fs.x, (int)(dst[i].z + 0.5f));
fs.y = max(fs.y, (int)(dst[i].w + 0.5f));
}
ds = fs;
if(m_regs->SMODE2.INT && m_regs->SMODE2.FFMD)
{
ds.y *= 2;
}
m_real_size = ds;
bool slbg = m_regs->PMODE.SLBG;
if(tex[0] || tex[1])
{
if(tex[0] == tex[1] && !slbg && (src[0] == src[1] & dst[0] == dst[1]).alltrue())
{
// the two outputs are identical, skip drawing one of them (the one that is alpha blended)
tex[0] = NULL;
}
GSVector4 c = GSVector4((int)m_regs->BGCOLOR.R, (int)m_regs->BGCOLOR.G, (int)m_regs->BGCOLOR.B, (int)m_regs->PMODE.ALP) / 255;
m_dev->Merge(tex, src_hw, dst, fs, m_regs->PMODE, m_regs->EXTBUF, c);
if(m_regs->SMODE2.INT && m_interlace > 0)
{
if(m_interlace == 7 && m_regs->SMODE2.FFMD) // Auto interlace enabled / Odd frame interlace setting
{
int field2 = 0;
int mode = 2;
m_dev->Interlace(ds, field ^ field2, mode, tex[1] ? tex[1]->GetScale().y : tex[0]->GetScale().y);
}
else
{
int field2 = 1 - ((m_interlace - 1) & 1);
int mode = (m_interlace - 1) >> 1;
m_dev->Interlace(ds, field ^ field2, mode, tex[1] ? tex[1]->GetScale().y : tex[0]->GetScale().y);
}
}
if(m_shadeboost)
{
m_dev->ShadeBoost();
}
if(m_shaderfx)
{
m_dev->ExternalFX();
}
if(m_fxaa)
{
m_dev->FXAA();
}
}
return true;
}
bool GSRenderer::Merge(int field)
{
bool en[2];
GSVector4i fr[2];
GSVector4i dr[2];
int baseline = INT_MAX;
for(int i = 0; i < 2; i++)
{
en[i] = IsEnabled(i);
if(en[i])
{
fr[i] = GetFrameRect(i);
dr[i] = GetDisplayRect(i);
baseline = min(dr[i].top, baseline);
//printf("[%d]: %d %d %d %d, %d %d %d %d\n", i, fr[i].x,fr[i].y,fr[i].z,fr[i].w , dr[i].x,dr[i].y,dr[i].z,dr[i].w);
}
}
if(!en[0] && !en[1])
{
return false;
}
// try to avoid fullscreen blur, could be nice on tv but on a monitor it's like double vision, hurts my eyes (persona 4, guitar hero)
//
// NOTE: probably the technique explained in graphtip.pdf (Antialiasing by Supersampling / 4. Reading Odd/Even Scan Lines Separately with the PCRTC then Blending)
bool samesrc =
en[0] && en[1] &&
m_regs->DISP[0].DISPFB.FBP == m_regs->DISP[1].DISPFB.FBP &&
m_regs->DISP[0].DISPFB.FBW == m_regs->DISP[1].DISPFB.FBW &&
m_regs->DISP[0].DISPFB.PSM == m_regs->DISP[1].DISPFB.PSM;
// bool blurdetected = false;
if(samesrc /*&& m_regs->PMODE.SLBG == 0 && m_regs->PMODE.MMOD == 1 && m_regs->PMODE.ALP == 0x80*/)
{
if(fr[0].eq(fr[1] + GSVector4i(0, -1, 0, 0)) && dr[0].eq(dr[1] + GSVector4i(0, 0, 0, 1))
|| fr[1].eq(fr[0] + GSVector4i(0, -1, 0, 0)) && dr[1].eq(dr[0] + GSVector4i(0, 0, 0, 1)))
{
// persona 4:
//
// fr[0] = 0 0 640 448
// fr[1] = 0 1 640 448
// dr[0] = 159 50 779 498
// dr[1] = 159 50 779 497
//
// second image shifted up by 1 pixel and blended over itself
//
// god of war:
//
// fr[0] = 0 1 512 448
// fr[1] = 0 0 512 448
// dr[0] = 127 50 639 497
// dr[1] = 127 50 639 498
//
// same just the first image shifted
int top = min(fr[0].top, fr[1].top);
int bottom = max(dr[0].bottom, dr[1].bottom);
fr[0].top = top;
fr[1].top = top;
dr[0].bottom = bottom;
dr[1].bottom = bottom;
// blurdetected = true;
}
else if(dr[0].eq(dr[1]) && (fr[0].eq(fr[1] + GSVector4i(0, 1, 0, 1)) || fr[1].eq(fr[0] + GSVector4i(0, 1, 0, 1))))
{
// dq5:
//
// fr[0] = 0 1 512 445
// fr[1] = 0 0 512 444
// dr[0] = 127 50 639 494
// dr[1] = 127 50 639 494
int top = min(fr[0].top, fr[1].top);
int bottom = min(fr[0].bottom, fr[1].bottom);
fr[0].top = fr[1].top = top;
fr[0].bottom = fr[1].bottom = bottom;
// blurdetected = true;
}
//printf("samesrc = %d blurdetected = %d\n",samesrc,blurdetected);
}
GSVector2i fs(0, 0);
GSVector2i ds(0, 0);
GSTexture* tex[2] = {NULL, NULL};
if(samesrc && fr[0].bottom == fr[1].bottom)
{
tex[0] = GetOutput(0);
tex[1] = tex[0]; // saves one texture fetch
}
else
{
if(en[0]) tex[0] = GetOutput(0);
if(en[1]) tex[1] = GetOutput(1);
}
GSVector4 src[2];
GSVector4 dst[2];
for(int i = 0; i < 2; i++)
{
if(!en[i] || !tex[i]) continue;
GSVector4i r = fr[i];
// overscan hack
if(dr[i].height() > 512) // hmm
{
int y = GetDeviceSize(i).y;
if(m_regs->SMODE2.INT && m_regs->SMODE2.FFMD) y /= 2;
r.bottom = r.top + y;
}
GSVector4 scale = GSVector4(tex[i]->GetScale()).xyxy();
src[i] = GSVector4(r) * scale / GSVector4(tex[i]->GetSize()).xyxy();
GSVector2 o(0, 0);
if(dr[i].top - baseline >= 4) // 2?
{
o.y = tex[i]->GetScale().y * (dr[i].top - baseline);
if(m_regs->SMODE2.INT && m_regs->SMODE2.FFMD)
{
o.y /= 2;
}
}
dst[i] = GSVector4(o).xyxy() + scale * GSVector4(r.rsize());
fs.x = max(fs.x, (int)(dst[i].z + 0.5f));
fs.y = max(fs.y, (int)(dst[i].w + 0.5f));
}
ds = fs;
if(m_regs->SMODE2.INT && m_regs->SMODE2.FFMD)
{
ds.y *= 2;
}
bool slbg = m_regs->PMODE.SLBG;
bool mmod = m_regs->PMODE.MMOD;
if(tex[0] || tex[1])
{
if(tex[0] == tex[1] && !slbg && (src[0] == src[1] & dst[0] == dst[1]).alltrue())
{
// the two outputs are identical, skip drawing one of them (the one that is alpha blended)
tex[0] = NULL;
}
GSVector4 c = GSVector4((int)m_regs->BGCOLOR.R, (int)m_regs->BGCOLOR.G, (int)m_regs->BGCOLOR.B, (int)m_regs->PMODE.ALP) / 255;
m_dev->Merge(tex, src, dst, fs, slbg, mmod, c);
if(m_regs->SMODE2.INT && m_interlace > 0)
{
if (m_interlace == 7 && m_regs->SMODE2.FFMD == 1) // Auto interlace enabled / Odd frame interlace setting
{
int field2 = 0;
int mode = 2;
m_dev->Interlace(ds, field ^ field2, mode, tex[1] ? tex[1]->GetScale().y : tex[0]->GetScale().y);
}
else
{
int field2 = 1 - ((m_interlace - 1) & 1);
int mode = (m_interlace - 1) >> 1;
m_dev->Interlace(ds, field ^ field2, mode, tex[1] ? tex[1]->GetScale().y : tex[0]->GetScale().y);
}
}
if(m_shadeboost)
{
m_dev->ShadeBoost();
}
if (m_shaderfx)
{
m_dev->ExternalFX();
}
if(m_fxaa)
{
m_dev->FXAA();
}
}
return true;
}
