+init

1 files changed, 89 insertions, 0 deletions

diff --git a/src/core/shader.h b/src/core/shader.h
new file mode 100644
index 0000000..8da8ae3
--- /dev/null
+++ b/src/core/shader.h
@@ -0,0 +1,89 @@
+#ifndef _SOFTSHADEROOM_SHADER_H_
+#define _SOFTSHADEROOM_SHADER_H_
+
+#include "../math/math.h"
+#include "vert.h"
+
+typedef struct UniformCollection {
+	/*built in varaibles*/
+	Mat4* model;
+	Mat4* view;
+	Mat4* projection;
+	Mat4* mvp;
+	Mat4* mv;
+	/*userside variables*/
+	Mat4 var_mat4[8];
+	Vec4 var_vec4[8];
+	Vec3 var_vec3[8];
+	Vec2 var_vec2[8];
+} UniformCollection;
+
+#define ssrum4(i) (uniforms->var_mat4[i])
+#define ssruv2(i) (uniforms->var_vec2[i])
+#define ssruv3(i) (uniforms->var_vec3[i])
+#define ssruv4(i) (uniforms->var_vec4[i])
+
+typedef struct VertexShaderIn {
+	Vert* vertex;
+} VertexShaderIn;
+
+typedef void(*VertexShader)(UniformCollection* uniforms, VertexShaderIn* in, Vec4* homocoord);
+
+typedef struct FragmentShaderIn {
+	Vert *A, *B, *C;
+	Vec3* bc; 
+} FragmentShaderIn;
+
+typedef bool(*FragmentShader)(UniformCollection* uniforms, FragmentShaderIn* in, Color* color);
+
+typedef struct Program {
+	VertexShader vertexshader; 
+	FragmentShader fragmentshader; 
+} Program;
+
+void ssrS_bcpcolor(Vec3* bc, Color A, Color B, Color C, Color* out);
+void ssrS_bcpvec2(Vec3* bc, Vec2* A, Vec2* B, Vec2* C, Vec2* out);
+void ssrS_bcpvec3(Vec3* bc, Vec3* A, Vec3* B, Vec3* C, Vec3* out);
+void ssrS_bcpvec4(Vec3* bc, Vec4* A, Vec4* B, Vec4* C, Vec4* out);
+
+/*
+** 顶点数据外，还提供额外的寄存器
+*/
+enum RegisterType {
+	REGTYPE_VEC2 = 1,
+	REGTYPE_VEC4 = 2,
+	REGTYPE_VEC3 = 3,
+};
+
+typedef struct Register {
+	uint length;
+	uint type;
+	union {
+		Vec4* v4;
+		Vec2* v2;
+		Vec3* v3;
+	};
+} Register;
+
+void ssrS_setregvec4_01i(uint idx, Vec4* value);
+void ssrS_setregvec4_02i(uint idx, Vec4* value);
+void ssrS_setregvec2_01i(uint idx, Vec2* value);
+void ssrS_setregvec2_02i(uint idx, Vec2* value);
+void ssrS_setregvec3_01i(uint idx, Vec3* value);
+void ssrS_setregvec3_02i(uint idx, Vec3* value);
+
+Vec4* ssrS_getregvec4_01i(uint idx);
+Vec4* ssrS_getregvec4_02i(uint idx);
+Vec2* ssrS_getregvec2_01i(uint idx);
+Vec2* ssrS_getregvec2_02i(uint idx);
+Vec3* ssrS_getregvec3_01i(uint idx);
+Vec3* ssrS_getregvec3_02i(uint idx);
+
+Vec4* ssrS_getregvec4_01(Vert* vert);
+Vec4* ssrS_getregvec4_02(Vert* vert);
+Vec2* ssrS_getregvec2_01(Vert* vert);
+Vec2* ssrS_getregvec2_02(Vert* vert);
+Vec3* ssrS_getregvec3_01(Vert* vert);
+Vec3* ssrS_getregvec3_02(Vert* vert);
+
+#endif
\ No newline at end of file