tests/spec/arb_seamless_cube_map/arb_seamless_cubemap.c

   1 /*
   2  * Copyright © Marek Olšák <maraeo@gmail.com>
   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 shall be included
  12  * in all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  15  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  18  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  19  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  20  */
  21
  22 #include "piglit-util-gl.h"
  23
  24 PIGLIT_GL_TEST_CONFIG_BEGIN
  25
  26         config.supports_gl_compat_version = 10;
  27
  28         config.window_width = 200;
  29         config.window_height = 40;
  30         config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
  31
  32 PIGLIT_GL_TEST_CONFIG_END
  33
  34 static const float colors[6][3] = {
  35    {1, 0, 0},
  36    {0, 1, 1},
  37    {0, 1, 0},
  38    {1, 0, 1},
  39    {0, 0, 1},
  40    {1, 1, 0}
  41 };
  42
  43 static const GLenum targets[6] = {
  44    GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB,
  45    GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB,
  46    GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB,
  47    GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB,
  48    GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB,
  49    GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
  50 };
  51
  52 static void draw_quad(int x, int y, float s, float t, float r)
  53 {
  54    glBegin(GL_QUADS);
  55       glTexCoord3f(s, t, r);
  56       glVertex2i(x,    y);
  57       glVertex2i(x,    y+20);
  58       glVertex2i(x+20, y+20);
  59       glVertex2i(x+20, y);
  60    glEnd();
  61 }
  62
  63 enum piglit_result piglit_display(void)
  64 {
  65    GLboolean pass = GL_TRUE;
  66    const float violet[3] = {0.5, 0, 0.5};
  67
  68    glClear(GL_COLOR_BUFFER_BIT);
  69
  70    draw_quad(10, 10, 0.99, 0, 1);
  71    draw_quad(40, 10, 1, 0, 0.99);
  72
  73    glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
  74    draw_quad(70, 10, 0.99, 0, 1);
  75    draw_quad(100, 10, 1, 0, 0.99);
  76    glDisable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
  77
  78    pass = piglit_probe_pixel_rgb(20, 20, colors[4]) && pass;
  79    pass = piglit_probe_pixel_rgb(50, 20, colors[0]) && pass;
  80    pass = piglit_probe_pixel_rgb(80, 20, violet) && pass;
  81    pass = piglit_probe_pixel_rgb(110, 20, violet) && pass;
  82
  83    piglit_present_results();
  84
  85    return pass ? PIGLIT_PASS : PIGLIT_FAIL;
  86 }
  87
  88 void piglit_init(int argc, char **argv)
  89 {
  90    GLint i;
  91
  92    piglit_require_extension("GL_ARB_texture_cube_map");
  93    piglit_require_extension("GL_ARB_seamless_cube_map");
  94
  95    glBindTexture(GL_TEXTURE_CUBE_MAP_ARB, 1);
  96    glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
  97    glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
  98    glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
  99    glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 100    glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 101
 102    for (i = 0; i < 6; i++) {
 103       glTexImage2D(targets[i], 0, GL_RGBA8, 1, 1, 0, GL_RGB, GL_FLOAT, colors[i]);
 104    }
 105
 106    glEnable(GL_TEXTURE_CUBE_MAP_ARB);
 107
 108    glClearColor(.3, .3, .3, 0);
 109    glColor3f( 1.0, 1.0, 1.0 );
 110
 111    piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
 112 }