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

src/texture.c@9c44c55d327a (annotated)

src/texture.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 2024 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/texture.h"
 #include "ascension/error.h"
 #include <assert.h>
 #include <GL/glew.h>
 void asc_texture_bind(AscTexture const *tex, int uniform_location, int unit) {
     glActiveTexture(GL_TEXTURE0 + unit);
     GLenum error = glGetError();
     if (error == GL_INVALID_ENUM) {
         asc_error("Tried to use more texture units than available.");
     }
     glBindTexture(tex->target, tex->tex_id);
     glUniform1i(uniform_location, unit);
 }
 void asc_texture_from_surface(AscTexture *tex, SDL_Surface const *surface) {
     glBindTexture(tex->target,tex->tex_id);
     glPixelStorei(GL_UNPACK_ROW_LENGTH,
                   surface->pitch / surface->format->BytesPerPixel);
     glTexImage2D(tex->target, 0, GL_RGBA,
                  surface->w, surface->h,
 , GL_BGRA,
                  GL_UNSIGNED_BYTE, surface->pixels);
 }
 void asc_texture_init(
         AscTexture *tex,
         enum asc_texture_target target,
         enum asc_texture_min_filter min_filter,
         enum asc_texture_mag_filter mag_filter
 ) {
     static const GLenum texture_targets[] = {
             GL_TEXTURE_RECTANGLE
     };
     static const GLint texture_filters[] = {
             GL_NEAREST,
             GL_LINEAR,
             GL_NEAREST_MIPMAP_NEAREST,
             GL_LINEAR_MIPMAP_NEAREST,
             GL_NEAREST_MIPMAP_LINEAR,
             GL_LINEAR_MIPMAP_LINEAR
     };
     assert(target < sizeof(texture_targets) / sizeof(GLenum));
     assert(min_filter < sizeof(texture_filters) / sizeof(GLint));
     assert(mag_filter < 2); // mag filter only supports nearest/linear
     tex->target = texture_targets[target];
     glGenTextures(1, &tex->tex_id);
     glBindTexture(tex->target, tex->tex_id);
     glTexParameteri(tex->target, GL_TEXTURE_MIN_FILTER,
                     texture_filters[min_filter]);
     glTexParameteri(tex->target, GL_TEXTURE_MAG_FILTER,
                     texture_filters[mag_filter]);
     asc_dprintf("Generated new texture for text node: %u", tex->tex_id);
 }
 void asc_texture_destroy(AscTexture *tex) {
     asc_dprintf("Release text node texture: %u", tex->tex_id);
     glDeleteTextures(1, &tex->tex_id);
 }

Mercurial > hg > ascension / annotate

src/texture.c@9c44c55d327a (annotated)

src/texture.c