From ec14ffe1cda04cd098ce07f3d3ad96c253e91eed Mon Sep 17 00:00:00 2001 From: bunnei Date: Tue, 22 Jul 2014 22:59:26 -0400 Subject: GSP: Implements preliminary command synchronization via GPU interrupts. Core: Added a comment to explain the logic for the RunLoop iterations. --- src/core/hw/gpu.cpp | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) (limited to 'src/core/hw') diff --git a/src/core/hw/gpu.cpp b/src/core/hw/gpu.cpp index c00be2a8..41976d98 100644 --- a/src/core/hw/gpu.cpp +++ b/src/core/hw/gpu.cpp @@ -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 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(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); -- cgit v1.2.3