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comparison: src/sprite.c

src/sprite.c

changeset 169
6e6717d9c776
parent 168
f70569c49c24
equal deleted inserted replaced
168:f70569c49c24 169:6e6717d9c776
48 .defines.frag = rect ? "#define USE_RECT" : NULL, 48 .defines.frag = rect ? "#define USE_RECT" : NULL,
49 }, &codes)) { 49 }, &codes)) {
50 asc_error("Loading sprite shader failed."); 50 asc_error("Loading sprite shader failed.");
51 return NULL; 51 return NULL;
52 } 52 }
53 // TODO: find better way to deal with inheritance (&shader->program just looks bad) 53 AscShaderProgram *shader = asc_shader_create(codes, sizeof(*shader));
54 AscSpriteShader *shader = asc_shader_create(codes, sizeof(*shader)); 54 if (asc_shader_invalid(shader)) {
55 if (asc_shader_invalid(&shader->program)) {
56 asc_shader_free_codes(codes); 55 asc_shader_free_codes(codes);
57 return (AscShaderProgram*) shader; 56 return shader;
58 } 57 }
59 shader->tex = asc_shader_get_uniform_loc(&shader->program, "tex"); 58 asc_ptr_cast(AscSpriteShader, sprite_shader, shader);
59 sprite_shader->tex = asc_shader_get_uniform_loc(shader, "tex");
60 asc_shader_free_codes(codes); 60 asc_shader_free_codes(codes);
61 61
62 asc_error_catch_all_gl(); 62 asc_error_catch_all_gl();
63 63
64 return (AscShaderProgram*) shader; 64 return shader;
65 } 65 }
66 66
67 static void asc_sprite_destroy(AscSceneNode *node) { 67 static void asc_sprite_destroy(AscSceneNode *node) {
68 AscSprite *sprite = (AscSprite *) node; 68 asc_ptr_cast(AscSprite, sprite, node);
69 asc_mesh_destroy(&sprite->mesh); 69 asc_mesh_destroy(&sprite->mesh);
70 sprite->texture->refcount--; 70 sprite->texture->refcount--;
71 } 71 }
72 72
73 static void asc_sprite_update(AscSceneNode *node) { 73 static void asc_sprite_update(AscSceneNode *node) {
74 AscSprite *sprite = (AscSprite *) node; 74 asc_ptr_cast(AscSprite, sprite, node);
75 75
76 // calculate texture parameters 76 // calculate texture parameters
77 asc_vec2f uv_scale; 77 asc_vec2f uv_scale;
78 if (sprite->texture_scale_mode == ASC_TEXTURE_SCALE_REPEAT) { 78 if (sprite->texture_scale_mode == ASC_TEXTURE_SCALE_REPEAT) {
79 uv_scale = asc_texture_calculate_uv_scale(sprite->texture, 79 uv_scale = asc_texture_calculate_uv_scale(sprite->texture,
88 .uv_scale = uv_scale 88 .uv_scale = uv_scale
89 ); 89 );
90 } 90 }
91 91
92 void asc_sprite_draw(const AscCamera *camera, const AscSceneNode *node) { 92 void asc_sprite_draw(const AscCamera *camera, const AscSceneNode *node) {
93 asc_ptr_cast(const AscSprite, sprite, node); 93 asc_cptr_cast(AscSprite, sprite, node);
94 94
95 // Activate shader 95 // Activate shader
96 // TODO: scene should know which shader we are going to activate s.t. it can pre-sort nodes 96 // TODO: scene should know which shader we are going to activate s.t. it can pre-sort nodes
97 const AscSpriteShader *shader = 97 const AscShaderProgram *shader =
98 asc_texture_is_uv_normalized(sprite->texture) 98 asc_texture_is_uv_normalized(sprite->texture)
99 ? asc_shader_lookup_or_create(ASC_SHADER_SPRITE_UV, asc_sprite_shader_create, 0) 99 ? asc_shader_lookup_or_create(ASC_SHADER_SPRITE_UV, asc_sprite_shader_create, 0)
100 : asc_shader_lookup_or_create(ASC_SHADER_SPRITE_RECT, asc_sprite_shader_create, 1); 100 : asc_shader_lookup_or_create(ASC_SHADER_SPRITE_RECT, asc_sprite_shader_create, 1);
101 // TODO: how to remove the following cast? 101 if (asc_shader_use(shader, camera)) return;
102 if (asc_shader_invalid((AscShaderProgram*)shader)) return; 102 asc_cptr_cast(AscSpriteShader, sprite_shader, shader);
103 asc_shader_use(&shader->program, camera);
104 103
105 // Upload model matrix 104 // Upload model matrix
106 asc_shader_upload_model_matrix(&shader->program, node); 105 asc_shader_upload_model_matrix(shader, node);
107 106
108 // Bind texture 107 // Bind texture
109 asc_texture_bind(sprite->texture, shader->tex, 0); 108 asc_texture_bind(sprite->texture, sprite_shader->tex, 0);
110 109
111 // Draw mesh 110 // Draw mesh
112 asc_mesh_draw_triangle_strip(&sprite->mesh); 111 asc_mesh_draw_triangle_strip(&sprite->mesh);
113 } 112 }
114 113

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