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GSP: Implements preliminary command synchronization via GPU interrupts.

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Core: Added a comment to explain the logic for the RunLoop iterations.
This commit is contained in:
bunnei 2014-07-22 22:59:26 -04:00
parent c48ab0bd9e
commit ec14ffe1cd
4 changed files with 140 additions and 29 deletions
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22
src/core/hw/gpu.cpp
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@ -7,7 +7,11 @@
#include "core/core.h"
#include "core/mem_map.h"
#include "core/hle/hle.h"
#include "core/hle/kernel/thread.h"
#include "core/hle/service/gsp.h"
#include "core/hw/gpu.h"
#include "video_core/video_core.h"
@ -17,7 +21,8 @@ namespace GPU {
RegisterSet<u32, Regs> g_regs;
u64 g_last_ticks = 0; ///< Last CPU ticks
u32 g_cur_line = 0; ///< Current vertical screen line
u64 g_last_ticks = 0; ///< Last CPU ticks
/**
* Sets whether the framebuffers are in the GSP heap (FCRAM) or VRAM
@ -249,17 +254,28 @@ template void Write<u8>(u32 addr, const u8 data);
void Update() {
u64 current_ticks = Core::g_app_core->GetTicks();
// Fake a vertical blank
if ((current_ticks - g_last_ticks) >= kFrameTicks) {
// Synchronize line...
if ((current_ticks - g_last_ticks) >= GPU::kFrameTicks / 400) {
GSP_GPU::SignalInterrupt(GSP_GPU::GXInterruptId::PDC0);
g_cur_line++;
g_last_ticks = current_ticks;
}
// Synchronize frame...
if (g_cur_line >= 400) {
g_cur_line = 0;
GSP_GPU::SignalInterrupt(GSP_GPU::GXInterruptId::PDC1);
VideoCore::g_renderer->SwapBuffers();
Kernel::WaitCurrentThread(WAITTYPE_VBLANK);
HLE::Reschedule(__func__);
}
}
/// Initialize hardware
void Init() {
g_cur_line = 0;
g_last_ticks = Core::g_app_core->GetTicks();
// SetFramebufferLocation(FRAMEBUFFER_LOCATION_FCRAM);
SetFramebufferLocation(FRAMEBUFFER_LOCATION_VRAM);