1#ifndef RENDERER_H
 2#define RENDERER_H
 3
 4#include "types.h"
 5#include "mgmath.h"
 6#include "platform/platform.h"
 7
 8typedef u32 MGMesh;
 9#define MGMESH_INVALID ((MGMesh)0)
10
11typedef u32 MGTexture;
12#define MGTEXTURE_INVALID ((MGTexture)0)
13
14typedef struct {
15	const u8* pixels;
16	i32       width;
17	i32       height;
18} MGTextureDesc;
19
20typedef struct {
21	float x;
22	float y;
23	float z;
24
25	float u;
26	float v;
27
28	u32 col;
29} MGVertex;
30
31typedef struct {
32	const MGVertex* vtc; /* vertices */
33	u32             vtcc; /* vertices count */
34	const u16*      idc; /* indecies */
35	u32             idcc; /* indecies count */
36} MGMeshDesc;
37
38/* create renderer with chosen context
39   (just GL for now) */
40void renderer_create(MGContext* ctx);
41
42/* start drawing to screen */
43void renderer_begin(void);
44
45/* finish drawing to screen */
46void renderer_end(void);
47
48/* destroy renderer resources */
49void renderer_destroy(void);
50
51/* create mesh from descriptor
52   returns mesh handle, or MGMESH_INVALID on failure */
53MGMesh renderer_mesh_create(const MGMeshDesc* desc);
54
55/* draws mesh using specified texture and mat */
56void renderer_mesh_draw(MGMesh mesh, MGTexture texture, const MGMat4* mvp);
57
58/* destroy mesh */
59void renderer_mesh_destroy(MGMesh id);
60
61/* load texture from file
62   returns texture handle, or MGTEXTURE_INVALID on failure */
63MGTexture renderer_texture_load(const char* path);
64
65/* create an RGBA8 texture from pixels
66   returns texture handle, or MGTEXTURE_INVALID on failure */
67MGTexture renderer_texture_create(const MGTextureDesc* desc);
68
69/* destroy texture */
70void renderer_texture_destroy(MGTexture id);
71
72/* toggle wireframe view */
73void renderer_debug_wireframe(i8 enabled);
74
75#endif /* RENDERER_H */