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gsdx hw: trace some special post processing effect 

* Double downscale is done in GTA
* Channel Shuffle is the top-left corner issue

So far nothing is emulated
This commit is contained in:
Gregory Hainaut 2016-04-28 19:39:57 +02:00
parent 5b04f4dab9
commit 45bfe2ad58
2 changed files with 32 additions and 0 deletions
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29
plugins/GSdx/GSRendererHW.cpp
View File

@ -29,6 +29,8 @@ GSRendererHW::GSRendererHW(GSTextureCache* tc)
, m_reset(false)
, m_upscale_multiplier(1)
, m_tc(tc)
, m_channel_shuffle(false)
, m_double_downscale(false)
{
m_upscale_multiplier = theApp.GetConfig("upscale_multiplier", 1);
m_userhacks_skipdraw = !!theApp.GetConfig("UserHacks", 0) ? theApp.GetConfig("UserHacks_SkipDraw", 0) : 0;
@ -370,6 +372,33 @@ void GSRendererHW::Draw()
(context->FRAME.FBP == context->ZBUF.ZBP && !PRIM->TME && !context->ZBUF.ZMSK && !context->FRAME.FBMSK && context->TEST.ZTE)
);
if (PRIM->TME && m_context->FRAME.Block() == m_context->TEX0.TBP0 && (m_vt.m_primclass == GS_SPRITE_CLASS)) {
// Special post-processing effect
GSVector4 delta_p = m_vt.m_max.p - m_vt.m_min.p;
if (m_vertex.next == 4) {
// Note potentially we could also check the content of vertex (2nd
// sprite must be half of the first one)
m_double_downscale = true;
GL_INS("Double downscale effect detected");
} else if ((m_context->TEX0.PSM == PSM_PSMT8) && (delta_p.x <= 64.0f) && (delta_p.y <= 32.0f)) {
//fprintf(stderr, "delta_p %f %f\n", delta_p.x, delta_p.y);
if (m_channel_shuffle) {
GL_INS("Channel shuffle effect detected SKIP");
} else {
GL_INS("Channel shuffle effect detected");
m_channel_shuffle = true;
}
} else {
GL_INS("Special post-processing effect not supported");
m_channel_shuffle = false;
m_double_downscale = false;
}
} else {
m_channel_shuffle = false;
m_double_downscale = false;
}
GIFRegTEX0 TEX0;
TEX0.TBP0 = context->FRAME.Block();

3
plugins/GSdx/GSRendererHW.h
View File

@ -152,6 +152,9 @@ protected:
int m_userhacks_round_sprite_offset;
bool m_channel_shuffle;
bool m_double_downscale;
public:
GSRendererHW(GSTextureCache* tc);
virtual ~GSRendererHW();