Dolphin shaders

src/duskdolphin/display/shader/shaderdolphin.h

@@ -9,9 +9,91 @@
 #include "error/error.h"
 
 typedef struct {
-  void *empty;
+  mat4 view;
+  mat4 proj;
+  mat4 model;
+
+  bool_t isProjectionPerspective;
+  Mtx44 matrixProjection;
+  Mtx matrixView;
+  Mtx matrixModel;
+  Mtx matrixModelView;
+
+  uint_fast8_t dirtyMatrix;
 } shaderdolphin_t;
 
 typedef struct {
   void *empty;
-} shaderdefinitiondolphin_t;
+} shaderdefinitiondolphin_t;
+
+#define SHADER_DOLPHIN_DIRTY_MODEL (1 << 0)
+#define SHADER_DOLPHIN_DIRTY_PROJ (1 << 1)
+#define SHADER_DOLPHIN_DIRTY_VIEW (1 << 2)
+
+extern shaderdolphin_t *SHADER_BOUND;
+
+/**
+ * Initializes a dolphin shader. Basically a render parameter pipeline.
+ * 
+ * @param shader Shader to initialize.
+ * @param def Definition of the shader to initialize with.
+ * @return Error code if failure.
+ */
+errorret_t shaderInitDolphin(
+  shaderdolphin_t *shader,
+  const shaderdefinitiondolphin_t *def
+);
+
+/**
+ * Binds a dolphin shader. Basically sets the render parameters for rendering.
+ * 
+ * @param shader Shader to bind.
+ * @return Error code if failure.
+ */
+errorret_t shaderBindDolphin(shaderdolphin_t *shader);
+
+/**
+ * Sets a matrix uniform in the dolphin shader. Basically does nothing.
+ * 
+ * @param shader Shader to set the matrix in.
+ * @param name Name of the uniform to set.
+ * @param matrix Matrix to set.
+ * @return Error code if failure.
+ */
+errorret_t shaderSetMatrixDolphin(
+  shaderdolphin_t *shader,
+  const char_t *name,
+  mat4 matrix
+);
+
+/**
+ * Disposes a dolphin shader. Basically does nothing.
+ * 
+ * @param shader Shader to dispose.
+ * @return Error code if failure.
+ */
+errorret_t shaderDisposeDolphin(shaderdolphin_t *shader);
+
+/**
+ * Internal Dolphin method, called right before a draw call to perform a matrix
+ * update and recalc.
+ * 
+ * @return Error code if failure.
+ */
+errorret_t shaderUpdateMVPDolphin();
+
+/**
+ * Converts a glm style column major mat4 to a GX compatible row major Mtx44.
+ * 
+ * @param in Matrix to convert.
+ * @param out Output converted matrix.
+ */
+void shaderMat4ToMtx44(const mat4 in, Mtx44 out);
+
+/**
+ * Converts a glm style column major mat4 to a GX compatible row major Mtx.
+ * 
+ * @param inGlmMatrix Matrix to convert.
+ * @param outGXMatrix Output converted matrix.
+ */
+void shaderMat4ToMtx(const mat4 inGlmMatrix, Mtx outGXMatrix);