Geometry pipeline v2

Co-Authored-By: Sky <skylersaleh@gmail.com>

include/PICA/gpu.hpp

@@ -4,6 +4,7 @@
 #include "logger.hpp"
 #include "memory.hpp"
 #include "PICA/float_types.hpp"
+#include "PICA/regs.hpp"
 #include "PICA/shader_unit.hpp"
 #include "renderer_gl/renderer_gl.hpp"
 
@@ -19,6 +20,7 @@ class GPU {
 	static constexpr u32 regNum = 0x300;
 	static constexpr u32 vramSize = 6_MB;
 	std::array<u32, regNum> regs; // GPU internal registers
+	std::array<vec4f, 16> currentAttributes; // Vertex attributes before being passed to the shader
 
 	template <bool indexed>
 	void drawArrays();
@@ -31,12 +33,17 @@ class GPU {
 		int size = 0; // Bytes per vertex
 		u32 config1 = 0;
 		u32 config2 = 0;
+		u32 componentCount = 0; // Number of components for the attribute
 
 		u64 getConfigFull() {
 			return u64(config1) | (u64(config2) << 32);
 		}
 	};
 
+	u64 getVertexShaderInputConfig() {
+		return u64(regs[PICAInternalRegs::VertexShaderInputCfgLow]) | (u64(regs[PICAInternalRegs::VertexShaderInputCfgHigh]) << 32);
+	}
+
 	std::array<AttribInfo, maxAttribCount> attributeInfo; // Info for each of the 12 attributes
 	u32 totalAttribCount = 0; // Number of vertex attributes to send to VS
 	u32 fixedAttribMask = 0; // Which attributes are fixed?

include/PICA/regs.hpp

@@ -10,6 +10,7 @@ namespace PICAInternalRegs {
 
 		DepthScale = 0x4D,
 		DepthOffset = 0x4E,
+		ShaderOutputCount = 0x4F,
 
 		// Framebuffer registers
 		AlphaTestConfig = 0x104,
@@ -85,6 +86,10 @@ namespace PICAInternalRegs {
 		VertexFloatUniformData6 = 0x2C7,
 		VertexFloatUniformData7 = 0x2C8,
 
+		VertexShaderInputBufferCfg = 0x2B9,
+		VertexShaderInputCfgLow = 0x2BB,
+		VertexShaderInputCfgHigh = 0x2BC,
+
 		VertexShaderTransferIndex = 0x2CB,
 		VertexShaderData0 = 0x2CC,
 		VertexShaderData1 = 0x2CD,

include/PICA/shader.hpp

@@ -163,7 +163,7 @@ public:
 	std::array<vec4f, 96> floatUniforms;
 
 	std::array<vec4f, 16> fixedAttributes; // Fixed vertex attributes
-	std::array<vec4f, 16> attributes; // Attributes passed to the shader
+	std::array<vec4f, 16> inputs; // Attributes passed to the shader
 	std::array<vec4f, 16> outputs;
 
 	PICAShader(ShaderType type) : type(type) {}