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Support render-to-offset within a framebuffer.

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Fixes #6324.
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Unknown W. Brackets committed 2014-06-14 17:08:41 -07:00
1 parent 34dcc23e69
commit 030b562eb9
5 files changed
+25 -9
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GPU/GLES/Framebuffer.cpp
+20 -6
View File
@@ -862,22 +862,36 @@ void FramebufferManager::DoSetRenderFrameBuffer() {
// Find a matching framebuffer
VirtualFramebuffer *vfb = 0;
size_t i;
gstate_c.cutRTOffsetX = 0;
for (i = 0; i < vfbs_.size(); ++i) {
VirtualFramebuffer *v = vfbs_[i];
if (MaskedEqual(v->fb_address, fb_address)) {
vfb = v;
// Update fb stride in case it changed
vfb->fb_stride = fb_stride;
v->format = fmt;
vfb->format = fmt;
// In throughmode, a higher height could be used. Let's avoid shrinking the buffer.
if (gstate.isModeThrough() && (int)v->width < fb_stride) {
v->width = std::max((int)v->width, drawing_width);
v->height = std::max((int)v->height, drawing_height);
if (gstate.isModeThrough() && (int)vfb->width < fb_stride) {
vfb->width = std::max((int)vfb->width, drawing_width);
vfb->height = std::max((int)vfb->height, drawing_height);
} else {
v->width = drawing_width;
v->height = drawing_height;
vfb->width = drawing_width;
vfb->height = drawing_height;
}
break;
} else if (v->fb_address < fb_address && v->fb_address + v->fb_stride * 4 > fb_address) {
// Possibly a render-to-offset.
const u32 bpp = v->format == GE_FORMAT_8888 ? 4 : 2;
const int x_offset = (fb_address - v->fb_address) / bpp;
if (v->format == fmt && v->fb_stride == fb_stride && x_offset < fb_stride && v->height >= drawing_height) {
WARN_LOG_REPORT_ONCE(renderoffset, HLE, "Rendering to framebuffer offset: %08x +%dx%d", v->fb_address, x_offset, 0);
vfb = v;
gstate_c.cutRTOffsetX = x_offset;
vfb->width = std::max((int)vfb->width, x_offset + drawing_width);
// To prevent the newSize code from being confused.
drawing_width += x_offset;
break;
}
}
}