[PICA] Get vertex attributes being semi-properly read

include/PICA/gpu.hpp

@@ -6,14 +6,41 @@
 
 class GPU {
 	Memory& mem;
-	static constexpr u32 regNum = 0x300;
 	ShaderUnit shaderUnit;
-	std::array<u32, regNum> regs; // GPU internal registers
+	u8* vram = nullptr;
 
+	static constexpr u32 totalAttribCount = 12; // Up to 12 vertex attributes
+	static constexpr u32 regNum = 0x300;
+	static constexpr u32 vramSize = 6_MB;
+	std::array<u32, regNum> regs; // GPU internal registers
+	
+	template<typename T>
+	T readPhysical(u32 paddr) {
+		if (paddr >= PhysicalAddrs::FCRAM && paddr <= PhysicalAddrs::FCRAMEnd) {
+			u8* fcram = mem.getFCRAM();
+			u32 index = paddr - PhysicalAddrs::FCRAM;
+
+			return *(T*)&fcram[index];
+		} else {
+			Helpers::panic("[PICA] Read unimplemented paddr %08X", paddr);
+		}
+	}
+
+	template <bool indexed>
 	void drawArrays();
 
+	// Silly method of avoiding linking problems. TODO: Change to something less silly
+	void drawArrays(bool indexed);
+
+	struct AttribInfo {
+		u32 offset = 0; // Offset from base vertex array
+		int size = 0; // Bytes per vertex
+	};
+
+	std::array<AttribInfo, totalAttribCount> attributeInfo;
+
 public:
-	GPU(Memory& mem) : mem(mem) {}
+	GPU(Memory& mem);
 	void clearBuffer(u32 startAddress, u32 endAddress, u32 value, u32 control);
 	void reset();
 

include/PICA/regs.hpp

@@ -2,10 +2,42 @@
 
 namespace PICAInternalRegs {
 	enum : u32 {
-		// Draw command regs
+		// Geometry pipelin regs
+		VertexAttribLoc = 0x200,
+		IndexBufferConfig = 0x227,
 		VertexCountReg = 0x228,
 		VertexOffsetReg = 0x22A,
 		SignalDrawArrays = 0x22E,
+		SignalDrawElements = 0x22F,
+
+		Attrib0Offset = 0x203,
+		Attrib1Offset = 0x206,
+		Attrib2Offset = 0x209,
+		Attrib3Offset = 0x20C,
+		Attrib4Offset = 0x20F,
+		Attrib5Offset = 0x212,
+		Attrib6Offset = 0x215,
+		Attrib7Offset = 0x218,
+		Attrib8Offset = 0x21B,
+		Attrib9Offset = 0x21E,
+		Attrib10Offset = 0x221,
+		Attrib11Offset = 0x224,
+
+		Attrib0Config2 = 0x205,
+		Attrib1Config2 = 0x208,
+		Attrib2Config2 = 0x20B,
+		Attrib3Config2 = 0x20E,
+		Attrib4Config2 = 0x211,
+		Attrib5Config2 = 0x214,
+		Attrib6Config2 = 0x217,
+		Attrib7Config2 = 0x21A,
+		Attrib8Config2 = 0x21D,
+		Attrib9Config2 = 0x220,
+		Attrib10Config2 = 0x223,
+		Attrib11Config2 = 0x226,
+
+		AttribInfoStart = Attrib0Offset,
+		AttribInfoEnd = Attrib11Config2,
 
 		// Vertex shader registers
 		VertexShaderTransferEnd = 0x2BF,