90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
#ifndef TEXTURE_H
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#define TEXTURE_H
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#include "timer.h"
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#define TEX_SPEC 0
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#define TEX_NORM 1
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#define TEX_HEIGHT 2
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#define TEX_DIFF 3
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/* Normalized S,T coordinates for rendering */
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struct glrect {
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float s0;
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float s1;
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float t0;
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float t1;
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};
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float st_s_w(struct glrect st);
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float st_s_h(struct glrect st);
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#define ST_UNIT (struct glrect) { 0.f, 1.f, 0.f, 1.f }
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/* Pixel U,V coordiantes */
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struct uvrect {
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int u0;
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int u1;
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int v0;
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int v1;
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};
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/* Tracks a playing animation */
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struct TexAnimation {
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int frame;
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int playing;
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int pausetime;
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struct timer *timer;
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struct TexAnim *anim;
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int loop;
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};
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/* Describes an animation on a particular texture */
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struct TexAnim {
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struct glrect *st_frames; /* Dynamic array of frames of animation */
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int ms;
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struct Texture *tex;
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};
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struct TextureOptions {
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int sprite;
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unsigned int gamma:1;
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int animation;
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};
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struct Texture {
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unsigned int id; /* ID reference for the GPU memory location of the texture */
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int width;
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int height;
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struct TextureOptions opts;
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struct TexAnim anim;
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};
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struct Texture *texture_pullfromfile(const char *path); // Create texture from image
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struct Texture *texture_loadfromfile(const char *path); // Create texture & load to gpu
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void tex_gpu_reload(struct Texture *tex); // gpu_free then gpu_load
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void tex_gpu_free(struct Texture *tex); // Remove texture data from gpu
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void tex_bind(struct Texture *tex); // Bind to gl context
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char * tex_get_path(struct Texture *tex); // Get image path for texture
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void anim_play(struct TexAnimation *anim);
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void anim_setframe(struct TexAnimation *anim, int frame);
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void anim_stop(struct TexAnimation *anim);
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void anim_pause(struct TexAnimation *anim);
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void anim_fwd(struct TexAnimation *anim);
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void anim_bkwd(struct TexAnimation *anim);
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void anim_incr(struct TexAnimation *anim);
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void anim_decr(struct TexAnimation *anim);
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void tex_incr_anim(struct TexAnimation *tex_anim);
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void tex_anim_set(struct TexAnimation *anim);
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struct glrect tex_get_rect(struct Texture *tex);
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struct glrect anim_get_rect(struct TexAnimation *anim);
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int anim_frames(struct TexAnim *a);
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#endif
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