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gsdx hw: GS can draw 2 frames in a single framebuffer 

So let's increase the height. It will increase the memory requirement on some games

v2: try to do it automatically
(not sure it will useful as most game will requires it)
v3: let's back to an hardcoded 1280 size. It generates too much issue
This commit is contained in:
Gregory Hainaut 2016-03-28 12:09:59 +02:00
parent 063d2e568a
commit 8943a9db4a
1 changed files with 10 additions and 1 deletions
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11
plugins/GSdx/GSRendererHW.cpp
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@ -58,7 +58,16 @@ void GSRendererHW::SetScaling()
int fb_width = max({ (int)m_context->FRAME.FBW * 64, crtc_size.x , 512 });
// 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_size.y) : 1024;
//
// Gregory: the framebuffer must have enough room to draw
// * at least 2 frames such as FMV (see OI_BlitFMV)
// * high resolution game such as snowblind engine game
//
// Autodetection isn't a good idea because it will create flickering
// If memory consumption is an issue, there are 2 possibilities
// * 1/ Avoid to create hundreds of RT
// * 2/ Use sparse texture (requires recent HW)
int fb_height = (fb_width < 1024) ? 1280 : 1024;
int upscaled_fb_w = fb_width * m_upscale_multiplier;
int upscaled_fb_h = fb_height * m_upscale_multiplier;