thirdparty/ppsspp
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GPU: Clear alpha more consistently from 565.

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Before, the backends all did different things.  Now they are more in sync,
but Vulkan still behaves slightly differently.

Fixes #11326.
This commit is contained in:
Unknown W. Brackets 2018-08-30 21:00:21 -07:00
parent 22a536fb0c
commit 16d7a80980
6 changed files with 65 additions and 26 deletions
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29
GPU/Directx9/FramebufferDX9.cpp
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@ -100,6 +100,19 @@ static const D3DVERTEXELEMENT9 g_FramebufferVertexElements[] = {
}
device_->CreateVertexDeclaration(g_FramebufferVertexElements, &pFramebufferVertexDecl);
int usage = 0;
D3DPOOL pool = D3DPOOL_MANAGED;
if (deviceEx_) {
pool = D3DPOOL_DEFAULT;
usage = D3DUSAGE_DYNAMIC;
}
HRESULT hr = device_->CreateTexture(1, 1, 1, usage, D3DFMT_A8R8G8B8, pool, &nullTex_, nullptr);
D3DLOCKED_RECT rect;
nullTex_->LockRect(0, &rect, nullptr, D3DLOCK_DISCARD);
memset(rect.pBits, 0, 4);
nullTex_->UnlockRect(0);
}
FramebufferManagerDX9::~FramebufferManagerDX9() {
@ -125,6 +138,8 @@ static const D3DVERTEXELEMENT9 g_FramebufferVertexElements[] = {
if (stencilUploadVS_) {
stencilUploadVS_->Release();
}
if (nullTex_)
nullTex_->Release();
}
void FramebufferManagerDX9::SetTextureCache(TextureCacheDX9 *tc) {
@ -307,24 +322,24 @@ static const D3DVERTEXELEMENT9 g_FramebufferVertexElements[] = {
return;
}
draw_->BindFramebufferAsRenderTarget(vfb->fbo, { Draw::RPAction::CLEAR, Draw::RPAction::KEEP, Draw::RPAction::KEEP });
// Technically, we should at this point re-interpret the bytes of the old format to the new.
// That might get tricky, and could cause unnecessary slowness in some games.
// For now, we just clear alpha/stencil from 565, which fixes shadow issues in Kingdom Hearts.
// (it uses 565 to write zeros to the buffer, than 4444 to actually render the shadow.)
// (it uses 565 to write zeros to the buffer, then 4444 to actually render the shadow.)
//
// The best way to do this may ultimately be to create a new FBO (combine with any resize?)
// and blit with a shader to that, then replace the FBO on vfb. Stencil would still be complex
// to exactly reproduce in 4444 and 8888 formats.
if (old == GE_FORMAT_565) {
draw_->BindFramebufferAsRenderTarget(vfb->fbo, { Draw::RPAction::KEEP, Draw::RPAction::KEEP, Draw::RPAction::CLEAR });
dxstate.scissorTest.disable();
dxstate.depthWrite.set(FALSE);
dxstate.colorMask.set(false, false, false, true);
dxstate.stencilFunc.set(D3DCMP_ALWAYS, 0, 0);
dxstate.stencilMask.set(0xFF);
gstate_c.Dirty(DIRTY_BLEND_STATE | DIRTY_DEPTHSTENCIL_STATE | DIRTY_VIEWPORTSCISSOR_STATE);
gstate_c.Dirty(DIRTY_BLEND_STATE | DIRTY_DEPTHSTENCIL_STATE | DIRTY_RASTER_STATE | DIRTY_VIEWPORTSCISSOR_STATE | DIRTY_TEXTURE_PARAMS | DIRTY_VERTEXSHADER_STATE | DIRTY_FRAGMENTSHADER_STATE);
float coord[20] = {
-1.0f,-1.0f,0, 0,0,
@ -338,7 +353,7 @@ static const D3DVERTEXELEMENT9 g_FramebufferVertexElements[] = {
device_->SetPixelShader(pFramebufferPixelShader);
device_->SetVertexShader(pFramebufferVertexShader);
shaderManagerDX9_->DirtyLastShader();
device_->SetTexture(0, nullptr);
device_->SetTexture(0, nullTex_);
D3DVIEWPORT9 vp{ 0, 0, (DWORD)vfb->renderWidth, (DWORD)vfb->renderHeight, 0.0f, 1.0f };
device_->SetViewport(&vp);
@ -349,9 +364,9 @@ static const D3DVERTEXELEMENT9 g_FramebufferVertexElements[] = {
ERROR_LOG_REPORT(G3D, "ReformatFramebufferFrom() failed: %08x", hr);
}
dxstate.viewport.restore();
}
RebindFramebuffer();
textureCache_->ForgetLastTexture();
}
}
static void CopyPixelDepthOnly(u32 *dstp, const u32 *srcp, size_t c) {