comparison: src/primitives.c
src/primitives.c
- changeset 115
- e5f8c99b0987
- parent 114
- 5b91bbab1ac0
- child 116
- bfb2a7d62047
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| 114:5b91bbab1ac0 | 115:e5f8c99b0987 |
|---|---|
| 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 */ | |
| 27 | |
| 28 #include "ascension/primitives.h" | |
| 29 #include "ascension/error.h" | |
| 30 | |
| 31 #include <GL/glew.h> | |
| 32 | |
| 33 void asc_primitives_init_plane(AscMesh *mesh) { | |
| 34 if (mesh->vbo == 0) { | |
| 35 if (mesh->vao > 0) { | |
| 36 asc_dprintf("!!! Mesh with VAO %u has no VBO - this is most likely a programming error !!!", mesh->vao); | |
| 37 } | |
| 38 asc_mesh_allocate_buffers(mesh, 1); | |
| 39 } | |
| 40 asc_dprintf("Create plane in VBO %u and VAO %u", mesh->vbo, mesh->vao); | |
| 41 mesh->vertices = 4; | |
| 42 float data[8] = { | |
| 43 0.0f, 0.0f, // bottom left | |
| 44 0.0f, 1.0f, // top left | |
| 45 1.0f, 0.0f, // bottom right | |
| 46 1.0f, 1.0f // top right | |
| 47 }; | |
| 48 glBindBuffer(GL_ARRAY_BUFFER, mesh->vbo); | |
| 49 glBufferData(GL_ARRAY_BUFFER, sizeof(data), data, GL_STATIC_DRAW); | |
| 50 glBindVertexArray(mesh->vao); | |
| 51 glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, NULL); | |
| 52 glEnableVertexAttribArray(0); | |
| 53 } |
