1.1 --- a/src/core.c Mon Oct 30 18:54:16 2023 +0100
1.2 +++ b/src/core.c Wed Nov 01 20:09:49 2023 +0100
1.3 @@ -26,31 +26,17 @@
1.4 */
1.5
1.6 #include "ascension/core.h"
1.7 -#include "ascension/utils.h"
1.8
1.9 #include <cx/linked_list.h>
1.10 #include <cx/printf.h>
1.11
1.12 -static void asc_gl_debug_callback(
1.13 - GLenum source, GLenum type, GLuint id, GLenum severity,
1.14 - GLsizei length, const GLchar* message,
1.15 - const void* userParam
1.16 -) {
1.17 - cxmutstr buf = cx_asprintf(
1.18 - "source = %d, id = %u, type = %d, severity= %d, message = %.*s",
1.19 - source, id, type, severity, length, message);
1.20 - if (type == GL_DEBUG_TYPE_ERROR) {
1.21 - asc_error(buf.ptr);
1.22 - } else {
1.23 - asc_dprintf("GL debug: %*.s", (int)buf.length, buf.ptr);
1.24 - }
1.25 - cx_strfree(&buf);
1.26 -}
1.27 +#include <SDL2/SDL.h>
1.28 +#include <SDL2/SDL_ttf.h>
1.29
1.30 AscContext asc_context;
1.31
1.32 -// forward declarations
1.33 -static void asc_window_destroy_impl(AscWindow* window);
1.34 +// forward declare the destructor functions that reside in other units
1.35 +void asc_window_destroy_impl(void* obj);
1.36
1.37 void asc_context_initialize(void) {
1.38 if (asc_test_flag(asc_context.flags, ASC_FLAG_INITILIZED))
1.39 @@ -137,153 +123,3 @@
1.40 cxBufferClear(&asc_context.error_buffer);
1.41 asc_clear_flag(&asc_context.flags, ASC_FLAG_HAS_ERROR);
1.42 }
1.43 -
1.44 -static void asc_event_window_resized(Uint32 id, Sint32 width, Sint32 height) {
1.45 - CxIterator iter = cxListIterator(asc_context.windows);
1.46 - cx_foreach(AscWindow*, w, iter) {
1.47 - if (w->id == id) {
1.48 - w->dimensions.width = width;
1.49 - w->dimensions.height = height;
1.50 - return;
1.51 - }
1.52 - }
1.53 -}
1.54 -
1.55 -bool asc_loop_next(void) {
1.56 - // dispatch SDL events
1.57 - SDL_Event event;
1.58 - while (SDL_PollEvent(&event)) {
1.59 - switch (event.type) {
1.60 - case SDL_QUIT:return false;
1.61 - case SDL_WINDOWEVENT: {
1.62 - if (event.window.type == SDL_WINDOWEVENT_RESIZED)
1.63 - asc_event_window_resized(
1.64 - event.window.windowID,
1.65 - event.window.data1,
1.66 - event.window.data2
1.67 - );
1.68 - break;
1.69 - }
1.70 - case SDL_KEYDOWN:
1.71 - // TODO: remove this code and implement key press map instead
1.72 - if (event.key.keysym.sym == SDLK_ESCAPE)
1.73 - return false;
1.74 - break;
1.75 - case SDL_KEYUP:
1.76 - // TODO: implement key press map
1.77 - break;
1.78 - }
1.79 - }
1.80 -
1.81 - // sync the windows
1.82 - CxMutIterator windows = cxListMutIterator(asc_context.windows);
1.83 - cx_foreach(AscWindow*, w, windows) {
1.84 - asc_window_sync(w);
1.85 - }
1.86 - return true;
1.87 -}
1.88 -
1.89 -void asc_window_settings_init_defaults(AscWindowSettings* settings) {
1.90 - settings->depth_size = 24;
1.91 - settings->vsync = 1;
1.92 - settings->dimensions.width = 800;
1.93 - settings->dimensions.height = 600;
1.94 - settings->fullscreen = 0;
1.95 - settings->gl_major_version = 3;
1.96 - settings->gl_minor_version = 3;
1.97 - settings->title = "Ascended Window";
1.98 -}
1.99 -
1.100 -void asc_window_initialize(AscWindow* window, AscWindowSettings const* settings) {
1.101 - Uint32 flags = SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN;
1.102 - flags |= settings->fullscreen ? SDL_WINDOW_FULLSCREEN_DESKTOP : SDL_WINDOW_RESIZABLE;
1.103 -
1.104 - window->window = SDL_CreateWindow(
1.105 - settings->title,
1.106 - SDL_WINDOWPOS_CENTERED,
1.107 - SDL_WINDOWPOS_CENTERED,
1.108 - settings->dimensions.width,
1.109 - settings->dimensions.height,
1.110 - flags
1.111 - );
1.112 - if (window->window == NULL) {
1.113 - asc_error(SDL_GetError());
1.114 - return;
1.115 - }
1.116 -
1.117 - window->id = SDL_GetWindowID(window->window);
1.118 - SDL_GetWindowSize(window->window,
1.119 - &window->dimensions.width,
1.120 - &window->dimensions.height
1.121 - );
1.122 -
1.123 - SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
1.124 - SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, settings->gl_major_version);
1.125 - SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, settings->gl_minor_version);
1.126 - SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, settings->depth_size);
1.127 - SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
1.128 - window->glctx = SDL_GL_CreateContext(window->window);
1.129 - if (window->glctx == NULL) {
1.130 - asc_dprintf("Creating GL context failed for window %u", window->id);
1.131 - } else {
1.132 - glewExperimental = GL_TRUE;
1.133 - GLenum err = glewInit();
1.134 - if (err == GLEW_OK) {
1.135 - SDL_GL_SetSwapInterval(settings->vsync);
1.136 - glEnable(GL_DEPTH_TEST);
1.137 - glEnable(GL_BLEND);
1.138 - glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
1.139 - glEnable(GL_DEBUG_OUTPUT);
1.140 - glDebugMessageCallback(asc_gl_debug_callback, NULL);
1.141 - asc_dprintf("Window %u initialized", window->id);
1.142 - cxListAdd(asc_context.windows, window);
1.143 - return;
1.144 - } else {
1.145 - asc_error(glewGetErrorString(err));
1.146 - }
1.147 - }
1.148 -
1.149 - // cleanup on error
1.150 - if (window->glctx != NULL) {
1.151 - SDL_GL_DeleteContext(window->glctx);
1.152 - }
1.153 - window->glctx = NULL;
1.154 - SDL_DestroyWindow(window->window);
1.155 - window->window = NULL;
1.156 - window->id = 0;
1.157 -}
1.158 -
1.159 -void asc_window_destroy_impl(AscWindow* window) {
1.160 - // destory the GL context and the window
1.161 - if (window->glctx != NULL) {
1.162 - SDL_GL_DeleteContext(window->glctx);
1.163 - }
1.164 - if (window->window != NULL) {
1.165 - SDL_DestroyWindow(window->window);
1.166 - }
1.167 -
1.168 - // clean the data
1.169 - asc_dprintf("Window %u and its OpenGL context destroyed.", window->id);
1.170 - memset(window, 0, sizeof(AscWindow));
1.171 -}
1.172 -
1.173 -void asc_window_destroy(AscWindow* window) {
1.174 - // find the window in the context and remove it
1.175 - bool found = false;
1.176 - CxMutIterator iter = cxListMutIterator(asc_context.windows);
1.177 - cx_foreach(AscWindow*, w, iter) {
1.178 - if (w == window) {
1.179 - found = true;
1.180 - cxIteratorFlagRemoval(iter);
1.181 - }
1.182 - }
1.183 - if (!found) asc_window_destroy_impl(window);
1.184 -}
1.185 -
1.186 -void asc_window_sync(AscWindow const* window) {
1.187 - SDL_GL_MakeCurrent(window->window, window->glctx);
1.188 - SDL_GL_SwapWindow(window->window);
1.189 - glViewport(0, 0, window->dimensions.width, window->dimensions.height);
1.190 - glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
1.191 - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
1.192 -}
