tests/spec/ati_fragment_shader/render-notexture.c

   1 /*
   2  * Copyright © 2017 Miklós Máté
   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 /**
  25  * Tests rendering with GL_ATI_fragment_shader: when no texture is bound
  26  * - glPassTexCoordATI() should work as normal
  27  * - glSampleMapATI() should return all zeros
  28  */
  29
  30 #include "piglit-util-gl.h"
  31
  32 PIGLIT_GL_TEST_CONFIG_BEGIN
  33
  34         config.supports_gl_compat_version = 10;
  35         config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
  36
  37 PIGLIT_GL_TEST_CONFIG_END
  38
  39 static const float color1[] = {0.2, 0.3, 0.8};
  40 static const float texcoord[] = {0.2, 0.7, 0.4};
  41 static const float black[] = {0.0, 0.0, 0.0};
  42
  43 enum {
  44         SHADER_TEXCOORD = 1,
  45         SHADER_TEX,
  46 };
  47
  48 enum piglit_result
  49 piglit_display(void)
  50 {
  51         bool pass = true;
  52         GLuint tex;
  53
  54         piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
  55
  56         glClearColor(1.0, 0.0, 0.0, 1.0);
  57         glClear(GL_COLOR_BUFFER_BIT);
  58
  59         glTexCoord3fv(texcoord);
  60
  61         glEnable(GL_FRAGMENT_SHADER_ATI);
  62         glBindFragmentShaderATI(SHADER_TEXCOORD);
  63         piglit_draw_rect(0, 0, piglit_width / 4, piglit_height);
  64         glBindFragmentShaderATI(SHADER_TEX);
  65         piglit_draw_rect(piglit_width / 4, 0, piglit_width / 4, piglit_height);
  66         glGenTextures(1, &tex);
  67         glBindTexture(GL_TEXTURE_2D, tex);
  68         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1, 1, 0, GL_RGB, GL_FLOAT,
  69                      (void*)color1);
  70         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
  71         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
  72         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
  73         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
  74         piglit_draw_rect(2 * piglit_width / 4, 0,
  75                          piglit_width / 4, piglit_height);
  76         glEnable(GL_TEXTURE_2D);
  77         piglit_draw_rect(3 * piglit_width / 4, 0,
  78                          piglit_width / 4, piglit_height);
  79         glDisable(GL_TEXTURE_2D);
  80         glDeleteTextures(1, &tex);
  81         glDisable(GL_FRAGMENT_SHADER_ATI);
  82
  83         pass = pass && piglit_probe_rect_rgb(0, 0, piglit_width / 4,
  84                                              piglit_height, texcoord);
  85         pass = pass && piglit_probe_rect_rgb(piglit_width / 4, 0,
  86                                              piglit_width / 4,
  87                                              piglit_height, black);
  88         pass = pass && piglit_probe_rect_rgb(2 * piglit_width / 4, 0,
  89                                              piglit_width / 4,
  90                                              piglit_height, black);
  91         pass = pass && piglit_probe_rect_rgb(3 * piglit_width / 4, 0,
  92                                              piglit_width / 4,
  93                                              piglit_height, color1);
  94
  95         piglit_present_results();
  96
  97         pass &= piglit_check_gl_error(GL_NO_ERROR);
  98
  99         return pass ? PIGLIT_PASS : PIGLIT_FAIL;
 100 }
 101
 102 void
 103 piglit_init(int argc, char **argv)
 104 {
 105         piglit_require_extension("GL_ATI_fragment_shader");
 106
 107         glBindFragmentShaderATI(SHADER_TEXCOORD);
 108         glBeginFragmentShaderATI();
 109         glPassTexCoordATI(GL_REG_1_ATI, GL_TEXTURE0_ARB, GL_SWIZZLE_STR_ATI);
 110         glColorFragmentOp1ATI(GL_MOV_ATI, GL_REG_0_ATI, GL_NONE, GL_NONE,
 111                         GL_REG_1_ATI, GL_NONE, GL_NONE);
 112         glEndFragmentShaderATI();
 113
 114         glBindFragmentShaderATI(SHADER_TEX);
 115         glBeginFragmentShaderATI();
 116         glSampleMapATI(GL_REG_0_ATI, GL_TEXTURE0_ARB, GL_SWIZZLE_STR_ATI);
 117         glColorFragmentOp1ATI(GL_MOV_ATI, GL_REG_0_ATI, GL_NONE, GL_NONE,
 118                         GL_REG_0_ATI, GL_NONE, GL_NONE);
 119         glEndFragmentShaderATI();
 120
 121         if (!piglit_check_gl_error(GL_NO_ERROR))
 122                 piglit_report_result(PIGLIT_FAIL);
 123 }