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gsp: Fix setbufferswap framebuffer selection

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This commit is contained in:
GPUCode 2023-08-09 11:49:19 +03:00
parent ca3c2550f2
commit 9417c75ca7
3 changed files with 11 additions and 8 deletions
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3
include/PICA/regs.hpp
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@ -191,8 +191,7 @@ namespace PICA {
VramBankControl = 0xB,
GPUBusy = 0xC,
BacklightControl = 0xBC,
// TODO: Framebuffer regs
Framebuffer0Size = 0x2F,
Framebuffer0Size = 0x118,
Framebuffer0AFirstAddr = 0x119,
Framebuffer0ASecondAddr = 0x11A,
Framebuffer0Config = 0x11B,

8
src/core/renderer_gl/renderer_gl.cpp
View file

@ -462,13 +462,17 @@ void RendererGL::display() {
gl.disableClipPlane(1);
using namespace PICA::ExternalRegs;
const u32 topScreenAddr = externalRegs[Framebuffer0AFirstAddr];
const u32 bottomScreenAddr = externalRegs[Framebuffer1AFirstAddr];
const u32 topActiveFb = externalRegs[Framebuffer0Select] & 1;
const u32 topScreenAddr = externalRegs[topActiveFb == 0 ? Framebuffer0AFirstAddr : Framebuffer0ASecondAddr];
const u32 bottomActiveFb = externalRegs[Framebuffer1Select] & 1;
const u32 bottomScreenAddr = externalRegs[bottomActiveFb == 0 ? Framebuffer1AFirstAddr : Framebuffer1ASecondAddr];
auto topScreen = colourBufferCache.findFromAddress(topScreenAddr);
auto bottomScreen = colourBufferCache.findFromAddress(bottomScreenAddr);
screenFramebuffer.bind(OpenGL::DrawFramebuffer);
OpenGL::clearColor();
if (topScreen) {
topScreen->get().texture.bind();
OpenGL::setViewport(0, 240, 400, 240); // Top screen viewport

8
src/core/services/gsp_gpu.cpp
View file

@ -398,16 +398,16 @@ void GPUService::setBufferSwapImpl(u32 screenId, const FramebufferInfo& info) {
constexpr static std::array<u32, 8> fb_addresses = {
Framebuffer0AFirstAddr,
Framebuffer0ASecondAddr,
Framebuffer0BFirstAddr,
Framebuffer0BSecondAddr,
Framebuffer1AFirstAddr,
Framebuffer1ASecondAddr,
Framebuffer1BFirstAddr,
Framebuffer0ASecondAddr,
Framebuffer0BSecondAddr,
Framebuffer1ASecondAddr,
Framebuffer1BSecondAddr,
};
const u32 fb_index = screenId * 4 + info.activeFb * 2;
const u32 fb_index = info.activeFb * 4 + screenId * 2;
gpu.writeExternalReg(fb_addresses[fb_index], VaddrToPaddr(info.leftFramebufferVaddr));
gpu.writeExternalReg(fb_addresses[fb_index + 1], VaddrToPaddr(info.rightFramebufferVaddr));