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

src/primitives.c@9c44c55d327a (annotated)

src/primitives.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 64: f18dc427f86f
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/primitives.h"
 #include "ascension/error.h"
 #include "ascension/context.h"
 #include <string.h>
 #include <GL/glew.h>
 static void asc_primitives_init_plane(AscMesh *mesh) {
     asc_dprintf("Create primitive plane in VBO %u and VAO %u", mesh->vbo, mesh->vao);
     mesh->vertices = 4;
     float data[8] = {
 .0f, 0.0f, // bottom left
 .0f, 1.0f,    // top left
 .0f, 0.0f, // bottom right
 .0f, 1.0f    // top right
     };
     glBindBuffer(GL_ARRAY_BUFFER, mesh->vbo);
     glBufferData(GL_ARRAY_BUFFER, sizeof(data), data, GL_STATIC_DRAW);
     glBindVertexArray(mesh->vao);
     glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, NULL);
     glEnableVertexAttribArray(0);
 }
 bool asc_primitives_init(AscPrimitives *primitives) {
     asc_dprintf("Create primitives for the GL context of active window.");
     // TODO: more primitives
     GLuint buffers[1];
     GLuint arrays[1];
     glGenBuffers(1, buffers);
     glGenVertexArrays(1, arrays);
     AscMesh *plane = &(primitives->plane);
     plane->vbo = buffers[0];
     plane->vao = arrays[0];
     asc_primitives_init_plane(plane);
     GLenum error = glGetError();
     if (error == GL_NO_ERROR) {
         return true;
     } else {
         asc_error_gl(error, CX_STR("Initialization of primitive meshes failed."));
         return false;
     }
 }
 void asc_primitives_destroy(AscPrimitives *primitives) {
     asc_dprintf("Destroy primitives in GL context of active window.");
     GLuint buffers[1];
     GLuint arrays[1];
     buffers[0] = primitives->plane.vbo;
     arrays[0] = primitives->plane.vao;
     glDeleteBuffers(1, buffers);
     glDeleteVertexArrays(1, arrays);
     memset(primitives, 0, sizeof(AscPrimitives));
 }
 void asc_primitives_draw_plane(void) {
     AscMesh const *mesh = &(asc_active_window->glctx.primitives.plane);
     glBindVertexArray(mesh->vao);
     glDrawArrays(GL_TRIANGLE_STRIP, 0, mesh->vertices);
 }

Mercurial > hg > ascension / annotate

src/primitives.c@9c44c55d327a (annotated)

src/primitives.c