comparison: src/glcontext.c
src/glcontext.c
- changeset 137
- f8e6e0ae61a8
- parent 115
- e5f8c99b0987
equal
deleted
inserted
replaced
| 136:768e6eac1ab0 | 137:f8e6e0ae61a8 |
|---|---|
| 26 */ | 26 */ |
| 27 | 27 |
| 28 #include "ascension/glcontext.h" | 28 #include "ascension/glcontext.h" |
| 29 #include "ascension/error.h" | 29 #include "ascension/error.h" |
| 30 | 30 |
| 31 #include "ascension/2d/sprite.h" | |
| 32 | |
| 31 #include <GL/glew.h> | 33 #include <GL/glew.h> |
| 32 #include <cx/array_list.h> | 34 #include <cx/array_list.h> |
| 33 | 35 |
| 34 static void asc_gl_debug_callback( | 36 static void asc_gl_debug_callback( |
| 35 GLenum source, GLenum type, GLuint id, GLenum severity, | 37 GLenum source, GLenum type, GLuint id, GLenum severity, |
| 44 source, id, type, severity, length, message); | 46 source, id, type, severity, length, message); |
| 45 } | 47 } |
| 46 } | 48 } |
| 47 | 49 |
| 48 static int asc_shader_initialize_predefined(AscGLContext *ctx) { | 50 static int asc_shader_initialize_predefined(AscGLContext *ctx) { |
| 51 // TODO: check if we can replace that by lazy loading shaders just like fonts | |
| 49 int ret = 0; | 52 int ret = 0; |
| 50 ret |= asc_shader_sprite_init(&ctx->shader.sprite); | 53 ret |= asc_shader_sprite_init(&ctx->shader.sprite_uv, false); |
| 54 ret |= asc_shader_sprite_init(&ctx->shader.sprite_rect, true); | |
| 51 ret |= asc_error_catch_all_gl(); | 55 ret |= asc_error_catch_all_gl(); |
| 52 return ret; | 56 return ret; |
| 53 } | 57 } |
| 54 | 58 |
| 55 static void asc_shader_destroy_predefined(AscGLContext *ctx) { | 59 static void asc_shader_destroy_predefined(AscGLContext *ctx) { |
| 56 asc_shader_program_destroy(&ctx->shader.sprite.program); | 60 asc_shader_program_destroy(&ctx->shader.sprite_uv.program); |
| 57 } | 61 asc_shader_program_destroy(&ctx->shader.sprite_rect.program); |
| 58 | |
| 59 static int asc_texture_initialize_predefined(AscGLContext *ctx) { | |
| 60 asc_texture_init_rectangle(ctx->textures_rect, ASC_TEXTURE_RECT_COUNT); | |
| 61 asc_texture_init_2d(ctx->textures_2d, ASC_TEXTURE_2D_COUNT); | |
| 62 | |
| 63 // Create a 1x1 surface with 32-bit RGBA format | |
| 64 SDL_Surface* white1x1 = SDL_CreateRGBSurface( | |
| 65 0, 1, 1, 32, | |
| 66 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF); | |
| 67 if (white1x1 == NULL) { | |
| 68 asc_error("Failed to create surface: %s", SDL_GetError()); | |
| 69 return 1; | |
| 70 } | |
| 71 SDL_FillRect(white1x1, NULL, 0xFFFFFFFF); | |
| 72 | |
| 73 // Initialize the empty textures with the white surface | |
| 74 asc_texture_from_surface(&ctx->textures_rect[ASC_TEXTURE_RECT_EMPTY_1X1_IDX], white1x1); | |
| 75 asc_texture_from_surface(&ctx->textures_2d[ASC_TEXTURE_2D_EMPTY_1X1_IDX], white1x1); | |
| 76 | |
| 77 return asc_error_catch_all_gl(); | |
| 78 } | |
| 79 | |
| 80 static void asc_texture_destroy_predefined(AscGLContext *ctx) { | |
| 81 asc_texture_destroy(ctx->textures_rect, ASC_TEXTURE_RECT_COUNT); | |
| 82 asc_texture_destroy(ctx->textures_2d, ASC_TEXTURE_2D_COUNT); | |
| 83 } | 62 } |
| 84 | 63 |
| 85 struct asc_gl_context_cleanup_data { | 64 struct asc_gl_context_cleanup_data { |
| 86 int type; | 65 int type; |
| 87 union { | 66 union { |
| 134 asc_error("Initializing predefined shaders failed"); | 113 asc_error("Initializing predefined shaders failed"); |
| 135 SDL_GL_DeleteContext(ctx->glctx); | 114 SDL_GL_DeleteContext(ctx->glctx); |
| 136 return false; | 115 return false; |
| 137 } | 116 } |
| 138 | 117 |
| 139 if (asc_texture_initialize_predefined(ctx)) { | |
| 140 asc_error("Initializing predefined textures failed"); | |
| 141 return false; | |
| 142 } | |
| 143 | |
| 144 ctx->cleanup_funcs = cxArrayListCreateSimple(sizeof(struct asc_gl_context_cleanup_data), 8); | 118 ctx->cleanup_funcs = cxArrayListCreateSimple(sizeof(struct asc_gl_context_cleanup_data), 8); |
| 145 cxDefineDestructor(ctx->cleanup_funcs, asc_gl_context_cleanup); | 119 cxDefineDestructor(ctx->cleanup_funcs, asc_gl_context_cleanup); |
| 146 | 120 |
| 147 return true; | 121 return true; |
| 148 } else { | 122 } else { |
| 155 void asc_gl_context_destroy(AscGLContext *ctx) { | 129 void asc_gl_context_destroy(AscGLContext *ctx) { |
| 156 if (ctx->glctx == NULL) return; | 130 if (ctx->glctx == NULL) return; |
| 157 SDL_GL_MakeCurrent(ctx->window, ctx->glctx); | 131 SDL_GL_MakeCurrent(ctx->window, ctx->glctx); |
| 158 | 132 |
| 159 cxListFree(ctx->cleanup_funcs); | 133 cxListFree(ctx->cleanup_funcs); |
| 160 asc_texture_destroy_predefined(ctx); | |
| 161 asc_shader_destroy_predefined(ctx); | 134 asc_shader_destroy_predefined(ctx); |
| 162 | 135 |
| 163 // destroy the GL context and the window | 136 // destroy the GL context and the window |
| 164 SDL_GL_DeleteContext(ctx->glctx); | 137 SDL_GL_DeleteContext(ctx->glctx); |
| 165 ctx->glctx = NULL; | 138 ctx->glctx = NULL; |
