tests/general/bgra-sec-color-pointer.c

   1 /*
   2  * Copyright © 2009 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
  21  * DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *    Ben Holmes <shranzel@hotmail.com>
  25  */
  26
  27 /*
  28  * this test draws quads with RGBA and BGRA formats using
  29  * glSecondaryColorPointer. Two quads are drawn without blending and two
  30  * with alpha blending.
  31  */
  32
  33 #include "piglit-util-gl.h"
  34
  35 PIGLIT_GL_TEST_CONFIG_BEGIN
  36
  37         config.supports_gl_compat_version = 10;
  38
  39         config.window_width = 400;
  40         config.window_height = 300;
  41         config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
  42         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  43
  44 PIGLIT_GL_TEST_CONFIG_END
  45
  46 static GLfloat verts[12] = {225.0, 175.0, 0.0,
  47                                 225.0, 225.0, 0.0,
  48                                 175.0, 175.0, 0.0,
  49                                 175.0, 225.0, 0.0};
  50
  51
  52 static GLubyte colors[16] = {255, 0, 0, 127,
  53                                 255, 0, 0, 127,
  54                                 255, 0, 0, 127,
  55                                 255, 0, 0, 127};
  56
  57
  58 void
  59 piglit_init(int argc, char **argv)
  60 {
  61         piglit_require_gl_version(14);
  62
  63         piglit_require_extension("GL_EXT_vertex_array_bgra");
  64
  65         piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
  66
  67         glEnable(GL_COLOR_SUM);
  68         glColor3f(0.0, 0.0, 0.0);
  69
  70         glClearColor(0.6, 0.6, 0.6, 1.0);
  71 }
  72
  73 enum piglit_result
  74 piglit_display(void)
  75 {
  76         GLboolean pass = GL_TRUE;
  77         GLfloat red[3]={1.0, 0.0, 0.0};
  78         GLfloat blue[3]={0.0, 0.0, 1.0};
  79         GLfloat greyRed[3]={1.0, 0.6, 0.6};
  80         GLfloat greyBlue[3]={0.6, 0.6, 1.0};
  81
  82         glClear(GL_COLOR_BUFFER_BIT);
  83
  84         glEnableClientState(GL_VERTEX_ARRAY);
  85         glEnableClientState(GL_SECONDARY_COLOR_ARRAY);
  86
  87         glSecondaryColorPointer(3, GL_UNSIGNED_BYTE, 4, colors);
  88         glVertexPointer(3, GL_FLOAT, 0, verts);
  89         glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
  90
  91         glPushMatrix();
  92         glTranslatef(75.0, 0.0, 0.0);
  93
  94         glSecondaryColorPointer(GL_BGRA, GL_UNSIGNED_BYTE, 0, colors);
  95         glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
  96
  97         glPopMatrix();
  98
  99         glEnable(GL_BLEND);
 100         glBlendFunc(GL_SRC_ALPHA, GL_ONE);
 101
 102         glPushMatrix();
 103         glTranslatef(0.0, -75.0, 0.0);
 104
 105         glSecondaryColorPointer(3, GL_UNSIGNED_BYTE, 4, colors);
 106         glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 107
 108         glPushMatrix();
 109         glTranslatef(75.0, 0.0, 0.0);
 110
 111         glSecondaryColorPointer(GL_BGRA, GL_UNSIGNED_BYTE, 0, colors);
 112         glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 113
 114         glPopMatrix();
 115         glPopMatrix();
 116
 117         pass = pass && piglit_probe_pixel_rgb(200, 200, red);
 118         pass = pass && piglit_probe_pixel_rgb(275, 200, blue);
 119         pass = pass && piglit_probe_pixel_rgb(200, 125, greyRed);
 120         pass = pass && piglit_probe_pixel_rgb(275, 125, greyBlue);
 121
 122         glFinish();
 123         piglit_present_results();
 124
 125         glDisable(GL_BLEND);
 126         glDisableClientState(GL_SECONDARY_COLOR_ARRAY);
 127         glDisableClientState(GL_VERTEX_ARRAY);
 128
 129         return pass ? PIGLIT_PASS : PIGLIT_FAIL;
 130 }