From 031da68c8edaa8c0192fae8c3e0fc8706aeacf48 Mon Sep 17 00:00:00 2001
From: UnknownShadow200 <unknownshadow200@gmail.com>
Date: Sat, 30 Sep 2023 15:22:23 +1000
Subject: [PATCH] Dreamcast: Fix build not working, also add classicube
 textures for default textures since Dreamcast build currently can't write any
 files

---
 .github/workflows/build_dreamcast.yml |  6 ------
 misc/dreamcast/Makefile               |  9 ++++++++-
 src/Platform_Dreamcast.c              | 27 ++-------------------------
 3 files changed, 10 insertions(+), 32 deletions(-)

diff --git a/.github/workflows/build_dreamcast.yml b/.github/workflows/build_dreamcast.yml
index 72d2b881c..c121aa17c 100644
--- a/.github/workflows/build_dreamcast.yml
+++ b/.github/workflows/build_dreamcast.yml
@@ -26,12 +26,6 @@ jobs:
           NOTIFY_MESSAGE: 'Failed to compile Dreamcast build'
           WEBHOOK_URL: '${{ secrets.WEBHOOK_URL }}'
           
-      - uses: ./.github/actions/upload_build
-        if: ${{ always() && steps.compile.outcome == 'success' }}
-        with:
-          SOURCE_FILE: 'ClassiCube-dc.elf'
-          DEST_NAME: 'ClassiCube-dc.elf'
-          
       - uses: ./.github/actions/upload_build
         if: ${{ always() && steps.compile.outcome == 'success' }}
         with:
diff --git a/misc/dreamcast/Makefile b/misc/dreamcast/Makefile
index ab37c445c..9dbd60f88 100644
--- a/misc/dreamcast/Makefile
+++ b/misc/dreamcast/Makefile
@@ -10,12 +10,13 @@ LDFLAGS=-g
 LIBS=-lm $(GLDC_LIB)
 
 TARGET := ClassiCube-dc
+CC_TEXTURES = classicube.zip
 
 ifeq ($(strip $(KOS_BASE)),)
 $(error "Please set KOS variables in your environment.")
 endif
 
-default: $(GLDC_LIB) $(BUILD_DIR) $(TARGET).cdi
+default: $(CC_TEXTURES) $(GLDC_LIB) $(BUILD_DIR) $(TARGET).cdi
 
 $(BUILD_DIR):
 	mkdir -p $(BUILD_DIR)
@@ -23,6 +24,10 @@ $(BUILD_DIR):
 $(GLDC_LIB):
 	$(MAKE) -C third_party/gldc
 
+# TODO add textures to misc folder ?	
+$(CC_TEXTURES): 
+	curl http://www.classicube.net/static/default.zip -o $@
+	
 $(BUILD_DIR)/%.o: src/%.c
 	kos-cc $(CFLAGS) -c $< -o $@
 
@@ -43,6 +48,8 @@ $(TARGET)-scr.bin: $(TARGET).bin
 $(TARGET).iso: $(TARGET)-scr.bin
 	mkdir -p ISO_FILES
 	cp $(TARGET)-scr.bin ISO_FILES/1ST_READ.BIN
+	mkdir -p ISO_FILES/texpacks
+	cp $(CC_TEXTURES) ISO_FILES/texpacks/classicube.zip
 	cp misc/dreamcast/IP.BIN IP.BIN
 	mkisofs -G IP.BIN -C 0,11702 -J -l -r -o $(TARGET).iso ISO_FILES
 	# genisoimage -V ClassiCube -G IP.BIN -joliet -rock -l -o $(TARGET).iso ISO_FILES
diff --git a/src/Platform_Dreamcast.c b/src/Platform_Dreamcast.c
index 62bc23ea6..59c4025d6 100644
--- a/src/Platform_Dreamcast.c
+++ b/src/Platform_Dreamcast.c
@@ -34,33 +34,12 @@ const char* Platform_AppNameSuffix = " Dreamcast";
 *#########################################################################################################################*/
 cc_uint64 Stopwatch_ElapsedMicroseconds(cc_uint64 beg, cc_uint64 end) {
 	if (end < beg) return 0;
-	return (end - beg) / 1000;
+	return end - beg;
 }
-// Borrowed from kos/kernel/arch/dreamcast/kernel/timer.c so it compiles
-//  with older toolchain versions
-#define _PMCR_CTRL_0  ( *((volatile uint16*)(0xff000084)) )
-#define _PMCTR_HIGH_0 ( *((volatile uint32*)(0xff100004)) )
-#define _PMCTR_LOW_0  ( *((volatile uint32*)(0xff100008)) )
-#define _PMCR_CLR        0x2000
-#define _PMCR_PMENABLE   0x8000
-#define _PMCR_RUN        0xc000
-#define _PMCR_PMM_MASK   0x003f
-#define _PMCR_CLOCK_TYPE_SHIFT 8
-#define _NS_PER_CYCLE 5
-#define _PMCR_COUNT_CPU_CYCLES  0
-#define _PMCR_ELAPSED_TIME_MODE 0x23
 
 cc_uint64 Stopwatch_Measure(void) {
-	uint64 cycles = (uint64)(_PMCTR_HIGH_0 & 0xFFFF) << 32 | _PMCTR_LOW_0;
-	return cycles * _NS_PER_CYCLE;
+	return timer_us_gettime64();
 }
-static void Stopwatch_Init(void) {
-	_PMCR_CTRL_0 &= ~(_PMCR_PMM_MASK | _PMCR_PMENABLE);
-	_PMCR_CTRL_0 |= _PMCR_CLR;
-	_PMCR_CTRL_0  = _PMCR_RUN | _PMCR_ELAPSED_TIME_MODE | (_PMCR_COUNT_CPU_CYCLES << _PMCR_CLOCK_TYPE_SHIFT);
-}
-// NOTE: If using newer toolchain versions, only need this:
-//  cc_uint64 Stopwatch_Measure(void) { return timer_ns_gettime64(); }
 
 void Platform_Log(const char* msg, int len) {
 	fs_write(STDOUT_FILENO, msg,  len);
@@ -441,8 +420,6 @@ cc_result Process_StartOpen(const cc_string* args) {
 }
 
 void Platform_Init(void) {
-	Stopwatch_Init();
-	
 	char cwd[600] = { 0 };
 	char* ptr = getcwd(cwd, 600);
 	Platform_Log1("WORKING DIR: %c", ptr);