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Merge pull request #1170 from PCSX2-Alpha/TC_Scaling 

GSDX: Detect RT size based on display and frame registers.
This commit is contained in:
Gregory Hainaut 2016-03-02 13:51:28 +01:00
parent 883963232f b07b06a9fb
commit edef3ad8c3
1 changed files with 19 additions and 17 deletions
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36
plugins/GSdx/GSRendererHW.cpp
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@ -49,27 +49,29 @@ GSRendererHW::GSRendererHW(GSTextureCache* tc)
void GSRendererHW::SetScaling()
{
int buffer_size = max(m_context->FRAME.FBW * 64, m_regs->DISP[m_regs->PMODE.EN1 == 1 ? 0 : 1].DISPFB.FBW * 64);
int crtc_width = GetDisplayRect().width();
int crtc_height = GetDisplayRect().height();
//Only increase the buffer size, don't make it smaller, it breaks games (GH3)
// Framebuffer width is always a multiple of 64 so at certain cases it can't cover some weird width values.
// 480P , 576P use width as 720 which is not referencable by FBW * 64. so it produces 704 ( the closest value multiple by 64).
// In such cases, let's just use the CRTC width.
int fb_width = max((int)m_context->FRAME.FBW * 64, crtc_width);
// Also don't change the size for custom resolution (m_upscale_multiplier = 0).
if (m_upscale_multiplier && m_width < (buffer_size * m_upscale_multiplier)) {
m_tc->RemovePartial();
} else {
// GS doesn't have a specific register for the FrameBuffer height. so we get the height
// from physical units of the display rectangle in case the game uses a heigher value of height.
int fb_height = (fb_width < 1024) ? max(512, crtc_height) : 1024;
bool good_rt_size = m_width == (fb_width * m_upscale_multiplier) && m_height == (fb_height * m_upscale_multiplier);
bool initialized_register_state = ((m_context->FRAME.FBW * 64) > 1) && (crtc_height > 1);
// No need to resize for native/custom resolutions as default size will be enough for native and we manually get RT Buffer size for custom.
// don't resize until the display rectangle and register states are stabilized.
if ( m_upscale_multiplier <= 1 || good_rt_size || !initialized_register_state)
return;
}
m_height = buffer_size < 1024 ? 512 : 1024;
if (m_upscale_multiplier > 1) {
m_width = buffer_size * m_upscale_multiplier;
m_height *= m_upscale_multiplier;
}
if (m_upscale_multiplier)
printf("Frame buffer size set to %dx%d (%dx%d)\n", (m_width / m_upscale_multiplier), (m_height / m_upscale_multiplier), m_width, m_height);
m_tc->RemovePartial();
m_width = fb_width * m_upscale_multiplier;
m_height = fb_height * m_upscale_multiplier;
printf("Frame buffer size set to %dx%d (%dx%d)\n", (m_width / m_upscale_multiplier), (m_height / m_upscale_multiplier), m_width, m_height);
}
GSRendererHW::~GSRendererHW()