comparison: src/window.c
src/window.c
- changeset 44
- b3da4096c607
- parent 41
- df81d493716e
- child 47
- 44457f6cb0a2
equal
deleted
inserted
replaced
| 43:5a8c31904e44 | 44:b3da4096c607 |
|---|---|
| 28 #include "ascension/window.h" | 28 #include "ascension/window.h" |
| 29 #include "ascension/context.h" | 29 #include "ascension/context.h" |
| 30 #include "ascension/error.h" | 30 #include "ascension/error.h" |
| 31 #include "ascension/utils.h" | 31 #include "ascension/utils.h" |
| 32 | 32 |
| 33 #include <cx/printf.h> | |
| 34 | |
| 35 #include <GL/glew.h> | 33 #include <GL/glew.h> |
| 36 | 34 |
| 37 static void asc_gl_debug_callback( | |
| 38 GLenum source, GLenum type, GLuint id, GLenum severity, | |
| 39 GLsizei length, const GLchar* message, | |
| 40 const void* userParam | |
| 41 ) { | |
| 42 cxmutstr buf = cx_asprintf( | |
| 43 "source = %d, id = %u, type = %d, severity= %d, message = %.*s", | |
| 44 source, id, type, severity, length, message); | |
| 45 if (type == GL_DEBUG_TYPE_ERROR) { | |
| 46 asc_error(buf.ptr); | |
| 47 } else { | |
| 48 asc_dprintf("GL debug: %.*s", (int)buf.length, buf.ptr); | |
| 49 } | |
| 50 cx_strfree(&buf); | |
| 51 } | |
| 52 | |
| 53 void asc_window_settings_init_defaults(AscWindowSettings* settings) { | 35 void asc_window_settings_init_defaults(AscWindowSettings* settings) { |
| 54 settings->depth_size = 24; | |
| 55 settings->vsync = 1; | |
| 56 settings->dimensions.width = 800; | 36 settings->dimensions.width = 800; |
| 57 settings->dimensions.height = 600; | 37 settings->dimensions.height = 600; |
| 58 settings->fullscreen = 0; | 38 settings->fullscreen = 0; |
| 59 settings->gl_major_version = 4; | 39 settings->glsettings.depth_size = 24; |
| 60 settings->gl_minor_version = 0; | 40 settings->glsettings.vsync = 1; |
| 41 settings->glsettings.gl_major_version = 4; | |
| 42 settings->glsettings.gl_minor_version = 0; | |
| 61 settings->title = "Ascended Window"; | 43 settings->title = "Ascended Window"; |
| 62 } | 44 } |
| 63 | 45 |
| 64 static void asc_window_init_scenes(AscWindow *window) { | 46 static void asc_window_init_scenes(AscWindow *window) { |
| 65 asc_scene_init(&window->ui); | 47 asc_scene_init(&window->ui); |
| 101 &window->dimensions.width, | 83 &window->dimensions.width, |
| 102 &window->dimensions.height | 84 &window->dimensions.height |
| 103 ); | 85 ); |
| 104 window->resized = true; // count initial sizing as resize | 86 window->resized = true; // count initial sizing as resize |
| 105 | 87 |
| 106 SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE); | 88 if (asc_gl_context_initialize(&window->glctx, window->window, &settings->glsettings)) { |
| 107 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, settings->gl_major_version); | 89 asc_dprintf("Window %u initialized", window->id); |
| 108 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, settings->gl_minor_version); | 90 asc_context.active_window = window; |
| 109 SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, settings->depth_size); | 91 asc_window_init_scenes(window); |
| 110 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1); | 92 return window; |
| 111 window->glctx = SDL_GL_CreateContext(window->window); | 93 } else { |
| 112 if (window->glctx == NULL) { | |
| 113 asc_dprintf("Creating GL context failed for window %u", window->id); | 94 asc_dprintf("Creating GL context failed for window %u", window->id); |
| 114 } else { | 95 // cleanup on error |
| 115 glewExperimental = GL_TRUE; | 96 SDL_DestroyWindow(window->window); |
| 116 GLenum err = glewInit(); | 97 window->window = NULL; |
| 117 if (err == GLEW_OK) { | 98 window->id = 0; |
| 118 SDL_GL_SetSwapInterval(settings->vsync); | 99 return NULL; |
| 119 glClearColor(0.0f, 0.0f, 0.0f, 1.0f); | |
| 120 glEnable(GL_DEBUG_OUTPUT); | |
| 121 glDebugMessageCallback(asc_gl_debug_callback, NULL); | |
| 122 | |
| 123 asc_dprintf("Window %u initialized", window->id); | |
| 124 if (asc_primitives_init(&window->primitives)) { | |
| 125 asc_context.active_window = window; | |
| 126 asc_window_init_scenes(window); | |
| 127 return window; | |
| 128 } else { | |
| 129 asc_dprintf("!!! Creating primitives for window %u failed !!!", window->id); | |
| 130 } | |
| 131 } else { | |
| 132 asc_error(glewGetErrorString(err)); | |
| 133 } | |
| 134 } | 100 } |
| 135 | |
| 136 // cleanup on error | |
| 137 if (window->glctx != NULL) { | |
| 138 SDL_GL_DeleteContext(window->glctx); | |
| 139 } | |
| 140 window->glctx = NULL; | |
| 141 SDL_DestroyWindow(window->window); | |
| 142 window->window = NULL; | |
| 143 window->id = 0; | |
| 144 } | 101 } |
| 145 | 102 |
| 146 void asc_window_destroy(AscWindow* window) { | 103 void asc_window_destroy(AscWindow* window) { |
| 147 // safeguard | 104 // safeguard |
| 148 if (window->id == 0) return; | 105 if (window->id == 0) return; |
| 153 } | 110 } |
| 154 | 111 |
| 155 // destroy all scenes | 112 // destroy all scenes |
| 156 asc_scene_destroy(&window->ui); | 113 asc_scene_destroy(&window->ui); |
| 157 | 114 |
| 158 // release context related data (we have to make the GL context current for this) | 115 // release context related data |
| 159 SDL_GL_MakeCurrent(window->window, window->glctx); | 116 asc_gl_context_destroy(&window->glctx); |
| 160 asc_primitives_destroy(&window->primitives); | |
| 161 | 117 |
| 162 // destroy the GL context and the window | 118 // destroy window |
| 163 if (window->glctx != NULL) { | |
| 164 SDL_GL_DeleteContext(window->glctx); | |
| 165 } | |
| 166 if (window->window != NULL) { | 119 if (window->window != NULL) { |
| 167 SDL_DestroyWindow(window->window); | 120 SDL_DestroyWindow(window->window); |
| 168 } | 121 } |
| 169 | 122 |
| 170 // if another window was active, make the other context current again | 123 // if another window was active, make the other context current again |
| 171 if (asc_context.active_window != NULL) { | 124 if (asc_context.active_window != NULL) { |
| 172 AscWindow const *aw = asc_context.active_window; | 125 asc_gl_context_activate(&asc_context.active_window->glctx); |
| 173 SDL_GL_MakeCurrent(aw->window, aw->glctx); | |
| 174 } | 126 } |
| 175 | 127 |
| 176 // clean the data | 128 // clean the data |
| 177 asc_dprintf("Window %u and its OpenGL context destroyed.", window->id); | 129 asc_dprintf("Window %u and its OpenGL context destroyed.", window->id); |
| 178 memset(window, 0, sizeof(AscWindow)); | 130 memset(window, 0, sizeof(AscWindow)); |
| 179 } | 131 } |
| 180 | 132 |
| 181 void asc_window_sync(AscWindow* window) { | 133 void asc_window_sync(AscWindow* window) { |
| 182 AscWindow const *active_window = asc_context.active_window; | 134 AscWindow *active_window = asc_context.active_window; |
| 183 if (window != active_window) { | 135 if (window != active_window) { |
| 184 asc_window_activate(window); | 136 asc_window_activate(window); |
| 185 } | 137 } |
| 186 | 138 |
| 187 // Draw the UI | 139 // Draw the UI |
| 196 if (window != active_window) { | 148 if (window != active_window) { |
| 197 asc_window_activate(active_window); | 149 asc_window_activate(active_window); |
| 198 } | 150 } |
| 199 } | 151 } |
| 200 | 152 |
| 201 void asc_window_activate(AscWindow const *window) { | 153 void asc_window_activate(AscWindow *window) { |
| 202 SDL_GL_MakeCurrent(window->window, window->glctx); | 154 asc_gl_context_activate(&window->glctx); |
| 203 asc_context.active_window = (AscWindow *)window; | 155 asc_context.active_window = (AscWindow *)window; |
| 204 } | 156 } |
