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Added temporary VC hacks

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This commit is contained in:
aglab2
2021-08-01 11:40:14 +08:00
parent cc06704d46
commit 5621c99d70
3 changed files with 20 additions and 1 deletions
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7
Makefile
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@@ -20,6 +20,7 @@ USE_DEBUG := 0
# Build for the N64 (turn this off for ports)
TARGET_N64 ?= 1
VC_HACKS ?= 0
# CONSOLE - selects the console to target
# bb - Targets the iQue Player (codenamed BB)
@@ -36,6 +37,10 @@ else ifeq ($(CONSOLE),bb)
DEFINES += BBPLAYER=1
endif
ifeq ($(VC_HACKS), 1)
DEFINES += VC_HACKS=1
endif
# COMPILER - selects the C compiler to use
# gcc - uses the GNU C Compiler
COMPILER ?= gcc
@@ -417,7 +422,7 @@ DEF_INC_CFLAGS := $(foreach i,$(INCLUDE_DIRS),-I$(i)) $(C_DEFINES)
# C compiler options
CFLAGS = -G 0 $(OPT_FLAGS) $(TARGET_CFLAGS) $(MIPSISET) $(DEF_INC_CFLAGS)
ifeq ($(COMPILER),gcc)
CFLAGS += -mno-shared -march=vr4300 -mfix4300 -mabi=32 -mhard-float -mdivide-breaks -fno-stack-protector -fno-common -fno-zero-initialized-in-bss -fno-PIC -mno-abicalls -fno-strict-aliasing -fno-inline-functions -ffreestanding -fwrapv -Wall -Wextra -Wno-missing-braces
CFLAGS += -mno-shared -march=vr4300 -mfix4300 -mabi=32 -mhard-float -mdivide-breaks -fno-stack-protector -fno-common -fno-zero-initialized-in-bss -fno-PIC -mno-abicalls -fno-strict-aliasing -fno-inline-functions -ffreestanding -fwrapv -Wall -Wextra -Wno-missing-braces -fno-jump-tables
else
CFLAGS += -non_shared -Wab,-r4300_mul -Xcpluscomm -Xfullwarn -signed -32
endif

5
src/audio/heap.c
View File

@@ -1087,6 +1087,11 @@ s32 audio_shut_down_and_reset_step(void) {
* Waits until a specified number of audio frames have been created
*/
void wait_for_audio_frames(s32 frames) {
#ifdef VC_HACKS
// VC emulator stubs this function because busy loops are not supported
// Technically we can put infinite loop that _looks_ like -O0 for emu but this is cleaner
return;
#endif
gAudioFrameCount = 0;
// Sound thread will update gAudioFrameCount
while (gAudioFrameCount < frames) {

9
src/game/game_init.c
View File

@@ -384,9 +384,14 @@ void render_init(void) {
exec_display_list(&gGfxPool->spTask);
// Skip incrementing the initial framebuffer index on emulators so that they display immediately as the Gfx task finishes
// VC probably emulates osViSwapBuffer accurately so instant patch breaks VC compatibility
#ifndef VC_HACKS
if ((*(volatile u32 *)0xA4100010) != 0) { // Read RDP Clock Register, has a value of zero on emulators
#endif
sRenderingFrameBuffer++;
#ifndef VC_HACKS
}
#endif
gGlobalTimer++;
}
@@ -422,14 +427,18 @@ void display_and_vsync(void) {
profiler_log_thread5_time(THREAD5_END);
osRecvMesg(&gGameVblankQueue, &gMainReceivedMesg, OS_MESG_BLOCK);
// Skip swapping buffers on emulator so that they display immediately as the Gfx task finishes
#ifndef VC_HACKS
if ((*(volatile u32 *)0xA4100010) != 0) { // Read RDP Clock Register, has a value of zero on emulators
#endif
if (++sRenderedFramebuffer == 3) {
sRenderedFramebuffer = 0;
}
if (++sRenderingFrameBuffer == 3) {
sRenderingFrameBuffer = 0;
}
#ifndef VC_HACKS
}
#endif
gGlobalTimer++;
}