ascension: src/glcontext.c@9c44c55d327a (annotated)

src/glcontext.c@9c44c55d327a (annotated)

src/glcontext.c

Thu, 18 Apr 2024 22:53:55 +0200

author: Mike Becker <universe@uap-core.de>
date: Thu, 18 Apr 2024 22:53:55 +0200
changeset 65: 9c44c55d327a
parent 50: d8d2e4817db1
permissions: -rw-r--r--

consistently refer to windows by ID - fixes #381

This change discovered that the font cache is completely broken. We created issue #387 for this.

 /*
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  * Copyright 2023 Mike Becker. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *   1. Redistributions of source code must retain the above copyright
  *      notice, this list of conditions and the following disclaimer.
  *
  *   2. Redistributions in binary form must reproduce the above copyright
  *      notice, this list of conditions and the following disclaimer in the
  *      documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #include "ascension/glcontext.h"
 #include "ascension/error.h"
 #include <cx/printf.h>
 #include <GL/glew.h>
 static void asc_gl_debug_callback(
         GLenum source, GLenum type, GLuint id, GLenum severity,
         GLsizei length, const GLchar* message,
         const void* userParam
 ) {
     cxmutstr buf = cx_asprintf(
             "source = %d, id = %u, type = %d, severity= %d, message = %.*s",
             source, id, type, severity, length, message);
     if (type == GL_DEBUG_TYPE_ERROR) {
         asc_error(buf.ptr);
     } else {
         asc_dprintf("GL debug: %.*s", (int)buf.length, buf.ptr);
     }
     cx_strfree(&buf);
 }
 static void asc_shader_initialize_predefined(AscGLContext *ctx) {
     AscShaderSprite *sprite = &ctx->shader.sprite;
     sprite->base = asc_shader_easy_compile_and_link("shader/sprite_vtx.glsl", "shader/sprite_frag.glsl");
     sprite->depth = glGetUniformLocation(sprite->base.id, "depth");
     sprite->tex = glGetUniformLocation(sprite->base.id, "texture");
 }
 static void asc_shader_destroy_predefined(AscGLContext *ctx) {
     asc_shader_program_destroy(ctx->shader.sprite.base);
 }
 bool asc_gl_context_initialize(
         AscGLContext *ctx,
         SDL_Window *window,
         AscGLContextSettings const *settings
 ) {
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, settings->gl_major_version);
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, settings->gl_minor_version);
     SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, settings->depth_size);
     SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
     ctx->glctx = SDL_GL_CreateContext(window);
     if (ctx->glctx == NULL) return false;
     ctx->window = window;
     glewExperimental = GL_TRUE;
     GLenum err = glewInit();
     if (err == GLEW_OK) {
         SDL_GL_SetSwapInterval(settings->vsync);
         glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
         glEnable(GL_DEBUG_OUTPUT);
         glDebugMessageCallback(asc_gl_debug_callback, NULL);
         if (!asc_primitives_init(&ctx->primitives)) {
             asc_error("Creating primitive meshes failed");
             SDL_GL_DeleteContext(ctx->glctx);
             return false;
         }
         asc_shader_initialize_predefined(ctx);
         return true;
     } else {
         asc_error(glewGetErrorString(err));
         SDL_GL_DeleteContext(ctx->glctx);
         return false;
     }
 }
 void asc_gl_context_destroy(AscGLContext *ctx) {
     if (ctx->glctx == NULL) return;
     SDL_GL_MakeCurrent(ctx->window, ctx->glctx);
     asc_shader_destroy_predefined(ctx);
     asc_primitives_destroy(&ctx->primitives);
     // destroy the GL context and the window
     SDL_GL_DeleteContext(ctx->glctx);
     ctx->glctx = NULL;
 }

Mercurial > hg > ascension / annotate

src/glcontext.c@9c44c55d327a (annotated)

src/glcontext.c