Xbox: Be a little more efficient in draw calls

src/Graphics_Xbox.c

@@ -476,6 +476,18 @@ void Gfx_SetFog(cc_bool enabled) {
 }
 
 void Gfx_SetFogCol(PackedCol color) {
+	int R = PackedCol_R(color);
+	int G = PackedCol_G(color);
+	int B = PackedCol_B(color);
+	int A = PackedCol_A(color);
+
+	uint32_t* p = pb_begin();
+	p = pb_push1(p, NV097_SET_FOG_COLOR, 
+					MASK(NV097_SET_FOG_COLOR_RED,   R) |
+					MASK(NV097_SET_FOG_COLOR_GREEN, G) |
+					MASK(NV097_SET_FOG_COLOR_BLUE,  B) |
+					MASK(NV097_SET_FOG_COLOR_ALPHA, A));
+	pb_end(p);
 }
 
 void Gfx_SetFogDensity(float value) {
@@ -655,16 +667,16 @@ static void DrawArrays(int mode, int start, int count) {
 	uint32_t *p = pb_begin();
 	p = pb_push1(p, NV097_SET_BEGIN_END, mode);
 
-	// NV097_DRAW_ARRAYS_COUNT is an 8 bit mask, so must be < 256
+	// NV097_DRAW_ARRAYS_COUNT is an 8 bit mask, so must be <= 256
 	while (count > 0)
 	{
-		int batch_count = min(count, 64); // TODO increase?
+		int batch_count = min(count, 256);
 
 		p = pb_push1(p, 0x40000000 | NV097_DRAW_ARRAYS,
 						MASK(NV097_DRAW_ARRAYS_COUNT, (batch_count-1)) | 
 						MASK(NV097_DRAW_ARRAYS_START_INDEX, start));
 
-		start += batch_count;				
+		start += batch_count;
 		count -= batch_count;
 	}
 
@@ -676,7 +688,6 @@ void Gfx_DrawVb_Lines(int verticesCount) {
 	DrawArrays(NV097_SET_BEGIN_END_OP_LINES, 0, verticesCount);
 }
 
-#define MAX_BATCH 120
 static void DrawIndexedVertices(int verticesCount, int startVertex) {
 	// TODO switch to indexed rendering
 	DrawArrays(NV097_SET_BEGIN_END_OP_QUADS, startVertex, verticesCount);

src/Platform_Xbox.c

@@ -111,7 +111,7 @@ cc_result Directory_Create(const cc_string* path) {
 }
 
 int File_Exists(const cc_string* path) {
-	if (!hdd_mounted) return ERR_NOT_SUPPORTED;
+	if (!hdd_mounted) return 0;
 
 	char str[NATIVE_STR_LEN];
 	DWORD attribs;
@@ -203,7 +203,8 @@ cc_result File_Write(cc_file file, const void* data, cc_uint32 count, cc_uint32*
 }
 
 cc_result File_Close(cc_file file) {
-	return CloseHandle(file) ? 0 : GetLastError();
+	NTSTATUS status = NtClose(file);
+	return NT_SUCCESS(status) ? 0 : status;
 }
 
 cc_result File_Seek(cc_file file, int offset, int seekType) {
@@ -243,8 +244,9 @@ void Thread_Run(void** handle, Thread_StartFunc func, int stackSize, const char*
 }
 
 void Thread_Detach(void* handle) {
-	if (!CloseHandle((HANDLE)handle)) {
-		Logger_Abort2(GetLastError(), "Freeing thread handle");
+	NTSTATUS status = NtClose((HANDLE)handle);
+	if (!NT_SUCCESS(status)) {
+		Logger_Abort2(status, "Freeing thread handle");
 	}
 }