Initial commit

channel/channelapp/source/gfx.h

@@ -0,0 +1,96 @@
+#ifndef _GFX_H_
+#define _GFX_H_
+
+#include <ogc/gx.h>
+
+#define COL_DEFAULT 0xFFFFFFFF
+
+#define WIDESCREEN_RATIO (852.0/640.0)
+
+typedef struct {
+	f32 x, y, z;
+} gfx_coordinates;
+
+typedef enum {
+	GFXT_RGBA8,
+	GFXT_A8
+} gfx_tex_type;
+
+typedef enum {
+	GFXE_GRADIENT,
+	GFXE_TEXTURE
+} gfx_entity_type;
+
+typedef struct {
+	gfx_entity_type type;
+	u16 w, h;
+
+	union {
+		struct {
+			u32 c1, c2, c3, c4;
+		} gradient;
+
+		struct {
+			u8 *pixels;
+			gfx_tex_type type;
+			GXTexObj obj;
+		} texture;
+	};
+} gfx_entity;
+
+typedef enum {
+	GFXQ_NULL = -1,
+	GFXQ_ORIGIN,
+	GFXQ_SCISSOR,
+	GFXQ_ENTITY
+} gfx_queue_type;
+
+typedef struct {
+	gfx_queue_type type;
+
+	union {
+		struct {
+			gfx_coordinates *coords;
+		} origin;
+
+		struct {
+			u16 x, y, z, w, h;
+		} scissor;
+
+		struct {
+			gfx_coordinates coords;
+			f32 scale;
+			f32 rad;
+			gfx_entity *entity;
+			u32 color;
+		} entity;
+	};
+} gfx_queue_entry;
+
+extern bool widescreen;
+extern u16 view_height, view_width;
+
+void gfx_init_video (void);
+void gfx_init (void);
+void gfx_deinit (void);
+
+void gfx_get_efb_size(u16 *x, u16 *y);
+void gfx_set_efb_buffer(u32 *buffer);
+
+void gfx_gen_gradient (gfx_entity *entity, u16 w, u16 h,
+					   u32 c1, u32 c2, u32 c3, u32 c4);
+void gfx_gen_tex (gfx_entity *entity, u16 w, u16 h, u8 *pixels, gfx_tex_type type);
+
+void gfx_qe_origin_push (gfx_queue_entry *entry, gfx_coordinates *coords);
+void gfx_qe_origin_pop (gfx_queue_entry *entry);
+void gfx_qe_scissor_reset (gfx_queue_entry *entry);
+void gfx_qe_scissor (gfx_queue_entry *entry, u16 x, u16 y, u16 z, u16 w, u16 h);
+void gfx_qe_entity (gfx_queue_entry *entry, gfx_entity *entity, f32 x, f32 y,
+					s16 layer, u32 color);
+
+void gfx_frame_start (void);
+void gfx_frame_push (const gfx_queue_entry *entries, int count);
+void gfx_frame_end (void);
+
+#endif
+