src/context.c

Wed, 08 Nov 2023 21:46:29 +0100

author
Mike Becker <universe@uap-core.de>
date
Wed, 08 Nov 2023 21:46:29 +0100
changeset 12
d89e0ebc76d2
parent 11
d83af80eb09b
child 15
362b7659dc76
permissions
-rw-r--r--

add projection matrix to AscWindow

     1 /*
     2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
     3  * Copyright 2023 Mike Becker. All rights reserved.
     4  *
     5  * Redistribution and use in source and binary forms, with or without
     6  * modification, are permitted provided that the following conditions are met:
     7  *
     8  *   1. Redistributions of source code must retain the above copyright
     9  *      notice, this list of conditions and the following disclaimer.
    10  *
    11  *   2. Redistributions in binary form must reproduce the above copyright
    12  *      notice, this list of conditions and the following disclaimer in the
    13  *      documentation and/or other materials provided with the distribution.
    14  *
    15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    16  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    18  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
    19  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    20  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    21  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    22  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    24  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    25  * POSSIBILITY OF SUCH DAMAGE.
    26  */
    28 #include "ascension/context.h"
    29 #include "ascension/error.h"
    30 #include "ascension/utils.h"
    32 #include <cx/linked_list.h>
    34 #include <SDL2/SDL.h>
    35 #include <SDL2/SDL_ttf.h>
    37 AscContext asc_context;
    39 void asc_context_initialize(void) {
    40     if (asc_test_flag(asc_context.flags, ASC_FLAG_INITILIZED))
    41         return;
    42     memset(&asc_context, 0, sizeof(AscContext));
    44     // initialize error buffer
    45     cxBufferInit(
    46             &asc_context.error_buffer,
    47             NULL,
    48             256,
    49             NULL,
    50             CX_BUFFER_AUTO_EXTEND
    51     );
    53     // initialize SDL
    54     if (SDL_Init(SDL_INIT_VIDEO) < 0) {
    55         asc_error(SDL_GetError());
    56     } else {
    57         if (TTF_Init() < 0) {
    58             asc_error(TTF_GetError());
    59         }
    60     }
    61     SDL_ClearError();
    62     asc_set_flag(&asc_context.flags, ASC_FLAG_INITILIZED);
    63     asc_dprintf("Ascension context initialized.");
    64 }
    66 void asc_context_destroy(void) {
    67     // destroy data
    68     for (unsigned int i = 0 ; i < ASC_MAX_WINDOWS ; i++) {
    69         asc_window_destroy(&asc_context.windows[i]);
    70     }
    71     asc_font_cache_clear();
    73     // quit SDL
    74     if (TTF_WasInit())
    75         TTF_Quit();
    76     SDL_Quit();
    78     // destroy the error buffer
    79     cxBufferDestroy(&asc_context.error_buffer);
    80     asc_context.flags = 0;
    81     asc_dprintf("Ascension context destroyed.");
    82 }

mercurial