comparison: src/mesh.c
src/mesh.c
- changeset 81
- 84a546e282b7
- child 82
- 4e1e698f4b0d
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| 80:9f7bfc0a1dc3 | 81:84a546e282b7 |
|---|---|
| 1 /* | |
| 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
| 3 * Copyright 2025 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 */ | |
| 27 | |
| 28 #include "ascension/mesh.h" | |
| 29 #include "ascension/error.h" | |
| 30 | |
| 31 #include <GL/glew.h> | |
| 32 | |
| 33 void asc_mesh_allocate_buffers(AscMesh *mesh, unsigned count) { | |
| 34 asc_dprintf("Allocate mesh buffers for %u meshes.", count); | |
| 35 GLuint buffers[count]; | |
| 36 GLuint arrays[count]; | |
| 37 glGenBuffers(count, buffers); | |
| 38 glGenVertexArrays(count, arrays); | |
| 39 for (unsigned i = 0; i < count; i++) { | |
| 40 mesh[i].vbo = buffers[i]; | |
| 41 mesh[i].vao = arrays[i]; | |
| 42 } | |
| 43 asc_error_catch_all_gl(); | |
| 44 } | |
| 45 | |
| 46 void asc_mesh_free_buffers(AscMesh *mesh, unsigned count) { | |
| 47 asc_dprintf("Free mesh buffers for %u meshes.", count); | |
| 48 if (count > 32) { | |
| 49 asc_error("Trying to free more than 32 mesh buffers at once."); | |
| 50 count = 32; | |
| 51 } | |
| 52 GLuint buffers[count]; | |
| 53 GLuint arrays[count]; | |
| 54 | |
| 55 for (unsigned i = 0; i < count; i++) { | |
| 56 buffers[i] = mesh[i].vbo; | |
| 57 arrays[i] = mesh[i].vao; | |
| 58 mesh[i].vbo = 0; | |
| 59 mesh[i].vao = 0; | |
| 60 } | |
| 61 | |
| 62 glDeleteBuffers(count, buffers); | |
| 63 glDeleteVertexArrays(count, arrays); | |
| 64 asc_error_catch_all_gl(); | |
| 65 } |
