Added rect draw api

Added some new maths types
Updated shaders to use new D_Rect structure
Added rect buffers to frames
Misc cleanup

code/core/impl/math.c

@@ -1,3 +1,23 @@
+V2f V2F(F32 x, F32 y) {
+	V2f result = { x, y };
+	return result;
+}
+
+V3f V3F(F32 x, F32 y, F32 z) {
+	V3f result = { x, y, z };
+	return result;
+}
+
+V4f V4F(F32 x, F32 y, F32 z, F32 w) {
+	V4f result = { x, y, z, w };
+	return result;
+}
+
+R2f R2F(V2f min, V2f max) {
+	R2f result = { min, max };
+	return result;
+}
+
 V3f V3f_Neg(V3f x) {
 	V3f result = { -x.x, -x.y, -x.z };
 	return result;

code/core/macros.h

@@ -4,6 +4,7 @@
 #include <assert.h>
 
 #define Assert(exp) assert(exp)
+#define StaticAssert(exp) static_assert(exp, #exp)
 
 #define ArraySize(x) (sizeof(x) / sizeof((x)[0]))
 #define Min(a, b) ((a) < (b) ? (a) : (b))

code/core/math.h

@@ -87,6 +87,18 @@ struct Mat4x4FInv {
 	Mat4x4F inv;
 };
 
+typedef struct R2f R2f;
+struct R2f {
+	V2f min;
+	V2f max;
+};
+
+function V2f V2F(F32 x, F32 y);
+function V3f V3F(F32 x, F32 y, F32 z);
+function V4f V4F(F32 x, F32 y, F32 z, F32 w);
+
+function R2f R2F(V2f min, V2f max);
+
 function V3f V3f_Neg(V3f x);
 function V3f V3f_Scale(V3f x, F32 s);