Adding assertions

- Adding assertions to each specific sceGu function
- Also adding printf for verbose output

Author: fjtrujy

src/gu/guInternal.c

@@ -19,5 +19,5 @@ int gu_display_on;
 int gu_call_mode;
 int gu_states;
 GuDrawBuffer gu_draw_buffer;
-unsigned int* gu_object_stack[32];
+unsigned int* gu_object_stack[GU_OBJECT_STACK_SIZE];
 int gu_object_stack_depth;

src/gu/guInternal.h

@@ -16,6 +16,8 @@
 #include <stdio.h>
 #endif
 
+#define GU_OBJECT_STACK_SIZE 32
+
 typedef void (*GuCallback)(int);
 
 typedef struct

src/gu/sceGuAlphaFunc.c

@@ -10,6 +10,12 @@
 
 void sceGuAlphaFunc(int func, int value, int mask)
 {
+#ifdef GU_DEBUG
+	printf("sceGuAlphaFunc(%d, %d, %d);\n", func, value, mask);
+	assert(gu_init && "GU not initialized");
+	assert(func >= GU_NEVER && func <= GU_GEQUAL && "Invalid alpha function");
+#endif
+
 	int arg = func | ((value & 0xff) << 8) | ((mask & 0xff) << 16);
 	sendCommandi(ALPHA_TEST, arg);
 }

src/gu/sceGuAmbient.c

@@ -10,6 +10,11 @@
 
 void sceGuAmbient(unsigned int color)
 {
+#ifdef GU_DEBUG
+	printf("sceGuAmbient(%08X);\n", color);
+	assert(gu_init && "GU not initialized");
+#endif
+
 	sendCommandi(AMBIENT_LIGHT_COLOR,(color));
 	sendCommandi(AMBIENT_LIGHT_ALPHA,(color >> 24));
 }

src/gu/sceGuAmbientColor.c

@@ -10,6 +10,11 @@
 
 void sceGuAmbientColor(unsigned int color)
 {
+#ifdef GU_DEBUG
+	printf("sceGuAmbientColor(0x%08X);\n", color);
+	assert(gu_init && "GU not initialized");
+#endif
+
 	sendCommandi(AMBIENT_COLOR, color);
 	sendCommandi(AMBIENT_ALPHA, color >> 24);
 }

src/gu/sceGuBeginObject.c

@@ -10,6 +10,13 @@
 
 void sceGuBeginObject(int vertex_type, int count, const void *indices, const void *vertices)
 {
+#ifdef GU_DEBUG
+	printf("sceGuBeginObject(%d, %d, %p, %p);\n", vertex_type, count, indices, vertices);
+	assert(gu_init && "GU not initialized");
+	assert(count > 0 && count <= 255 && (count % 8) == 0 && "Invalid vertex count - must be positive, <= 65535, and multiple of 8");
+	assert(gu_object_stack_depth < GU_OBJECT_STACK_SIZE && "Object stack overflow");
+#endif
+
 	if (vertex_type)
 		sendCommandi(VERTEX_TYPE, vertex_type);
 

src/gu/sceGuBlendFunc.c

@@ -10,6 +10,14 @@
 
 void sceGuBlendFunc(int op, int src, int dest, unsigned int srcfix, unsigned int destfix)
 {
+#ifdef GU_DEBUG
+	printf("sceGuBlendFunc(%d, %d, %d, 0x%08X, 0x%08X);\n", op, src, dest, srcfix, destfix);
+	assert(gu_init && "GU not initialized");
+	assert(op >= GU_ADD && op <= GU_ABS && "Invalid blend operation");
+	assert(src >= GU_OTHER_COLOR && src <= GU_FIX && "Invalid source blend factor");
+	assert(dest >= GU_OTHER_COLOR && dest <= GU_FIX && "Invalid destination blend factor");
+#endif
+
 	sendCommandi(BLEND_MODE, src | (dest << 4) | (op << 8));
 	sendCommandi(BLEND_FIXED_A, srcfix);
 	sendCommandi(BLEND_FIXED_B, destfix);

src/gu/sceGuBoneMatrix.c

@@ -10,6 +10,12 @@
 
 void sceGuBoneMatrix(unsigned int index, const ScePspFMatrix4 *matrix)
 {
+#ifdef GU_DEBUG
+	printf("sceGuBoneMatrix(%d, %p);\n", index, matrix);
+	assert(gu_init && "GU not initialized");
+	assert(index < 8 && "Invalid bone matrix index");
+#endif
+
 	unsigned int offset = ((index << 1) + index) << 2; // 3*4 matrix
 	unsigned int i, j;
 	const float *fmatrix = (const float *)matrix;

src/gu/sceGuCallList.c

@@ -10,6 +10,11 @@
 
 int sceGuCallList(const void *list)
 {
+#ifdef GU_DEBUG
+	printf("sceGuCallList(%p);\n", list);
+	assert(gu_init && "GU not initialized");
+#endif
+
 	int res;
 	unsigned int list_addr = (unsigned int)list;
 

src/gu/sceGuCallMode.c

@@ -10,5 +10,11 @@
 
 void sceGuCallMode(int mode)
 {
+#ifdef GU_DEBUG
+	printf("sceGuCallMode(%d);\n", mode);
+	assert(gu_init && "GU not initialized");
+	assert(mode >= GU_CALL_NORMAL && mode <= GU_CALL_SIGNAL && "Invalid call mode");
+#endif
+
 	gu_call_mode = mode;
 }