tests/spec/arb_vertex_buffer_object/ib-subdata-sync.c

   1 /*
   2  * Copyright © 2013 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #include "piglit-util-gl.h"
  25
  26 PIGLIT_GL_TEST_CONFIG_BEGIN
  27
  28         config.supports_gl_compat_version = 10;
  29
  30         config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
  31         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  32
  33 PIGLIT_GL_TEST_CONFIG_END
  34
  35 enum piglit_result
  36 piglit_display(void)
  37 {
  38         float verts[] = {
  39                 -1, -1,
  40                  0, -1,
  41                  0,  1,
  42                 -1,  1,
  43
  44                  0, -1,
  45                  1, -1,
  46                  1,  1,
  47                  0,  1,
  48         };
  49         uint32_t ib_1[] = {0, 1, 2, 3};
  50         uint32_t ib_2[] = {4, 5, 6, 7};
  51
  52         bool pass = true;
  53         size_t size = sizeof(ib_1);
  54         GLuint vbo, ibo;
  55         float green[] = {0, 1, 0, 0};
  56
  57         glColor4fv(green);
  58
  59         glGenBuffersARB(1, &vbo);
  60         glBindBufferARB(GL_ARRAY_BUFFER, vbo);
  61         glBufferData(GL_ARRAY_BUFFER, sizeof(verts), verts, GL_STREAM_DRAW);
  62         glEnableClientState(GL_VERTEX_ARRAY);
  63         glVertexPointer(2, GL_FLOAT, 0, NULL);
  64
  65         glGenBuffersARB(1, &ibo);
  66         glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER, ibo);
  67         glBufferData(GL_ELEMENT_ARRAY_BUFFER, 4096, NULL, GL_STREAM_DRAW);
  68
  69         glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, 0, size, ib_1);
  70         glDrawElements(GL_TRIANGLE_FAN, 4, GL_UNSIGNED_INT, NULL);
  71         glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, 0, size, ib_2);
  72         glDrawElements(GL_TRIANGLE_FAN, 4, GL_UNSIGNED_INT, NULL);
  73
  74         pass = piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height, green);
  75
  76         piglit_present_results();
  77
  78         return pass ? PIGLIT_PASS : PIGLIT_FAIL;
  79 }
  80
  81 void
  82 piglit_init(int argc, char *argv[])
  83 {
  84         piglit_require_extension("GL_ARB_vertex_buffer_object");
  85 }