tests/spec/nv_conditional_render/copyteximage.c

   1 /*
   2  * Copyright © 2011 Intel Corporation
   3  * Copyright © 2011 Marek Olšák <maraeo@gmail.com>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  22  * IN THE SOFTWARE.
  23  */
  24
  25 #include "piglit-util-gl.h"
  26
  27 /**
  28  * @file copyteximage.c
  29  *
  30  * Tests that conditional rendering does not affect glCopyTexImage2D().
  31  *
  32  * It's something that would be likely to be implemented through
  33  * normal rendering inside of the driver, and thus easy to
  34  * accidentally disable during conditional rendering.
  35  */
  36
  37 PIGLIT_GL_TEST_CONFIG_BEGIN
  38
  39         config.supports_gl_compat_version = 10;
  40         config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
  41         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  42
  43 PIGLIT_GL_TEST_CONFIG_END
  44
  45 static void
  46 fill_tex(int level, int w, int h, const GLfloat *color)
  47 {
  48         GLfloat *data;
  49         int i;
  50
  51         data = malloc(w * h * 4 * sizeof(GLfloat));
  52         for (i = 0; i < 4 * w * h; i += 4) {
  53                 data[i + 0] = color[0];
  54                 data[i + 1] = color[1];
  55                 data[i + 2] = color[2];
  56                 data[i + 3] = color[3];
  57         }
  58         glTexImage2D(GL_TEXTURE_2D, level, GL_RGBA, w, h, 0,
  59                      GL_RGBA, GL_FLOAT, data);
  60         free(data);
  61 }
  62
  63 enum piglit_result
  64 piglit_display(void)
  65 {
  66         bool pass = true;
  67         float red[4] = {1.0, 0.0, 0.0, 0.0};
  68         float green[4] = {0.0, 1.0, 0.0, 0.0};
  69         GLuint q, texture;
  70
  71         glClearColor(0.5, 0.5, 0.5, 0.5);
  72         glClear(GL_COLOR_BUFFER_BIT);
  73
  74         /* Draw bottom half of window to green. */
  75         glColor4fv(green);
  76         piglit_draw_rect(-1, -1, 2, 1);
  77         glColor4f(1, 1, 1, 1);
  78
  79         /* Set up a red texture. */
  80         glGenTextures(1, &texture);
  81         glBindTexture(GL_TEXTURE_2D, texture);
  82
  83         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
  84         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
  85         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
  86         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
  87                         GL_LINEAR_MIPMAP_NEAREST);
  88         glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
  89
  90         fill_tex(0, piglit_width, piglit_height / 2, red);
  91
  92         glGenQueries(1, &q);
  93
  94         /* Generate query fail. */
  95         glBeginQuery(GL_SAMPLES_PASSED, q);
  96         glEndQuery(GL_SAMPLES_PASSED);
  97
  98         /* This should not be affected by conditional rendering. */
  99         glBeginConditionalRenderNV(q, GL_QUERY_WAIT_NV);
 100         glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 0, 0, piglit_width, piglit_height / 2, 0);
 101         glEndConditionalRenderNV();
 102
 103         /* Draw the texture. */
 104         glEnable(GL_TEXTURE_2D);
 105         piglit_draw_rect_tex(-1, 0, 2, 1,
 106                              0, 0, 1, 1);
 107         glDisable(GL_TEXTURE_2D);
 108
 109         pass = piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height,
 110                                       green);
 111
 112         piglit_present_results();
 113
 114         glDeleteQueries(1, &q);
 115
 116         return pass ? PIGLIT_PASS : PIGLIT_FAIL;
 117 }
 118
 119 void
 120 piglit_init(int argc, char **argv)
 121 {
 122         piglit_require_gl_version(20);
 123
 124         piglit_require_extension("GL_NV_conditional_render");
 125 }