tests/shaders/glsl-useprogram-displaylist.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  * tests for bug fdo 23746. The bug prevents glUseProgram from working when
  29  * called within a display list.
  30  */
  31
  32 #include "piglit-util.h"
  33
  34 int piglit_width = 400, piglit_height = 300;
  35 int piglit_window_mode = GLUT_RGB | GLUT_DOUBLE;
  36
  37 static GLint progr;
  38 static GLint progg;
  39 static GLint fsr;
  40 static GLint fsg;
  41 static GLint vs;
  42 static GLuint list;
  43
  44 static GLfloat vertices[12] = {150.0, 125.0, 0.0,
  45                                 150.0, 175.0, 0.0,
  46                                 100.0, 125.0, 0.0,
  47                                 100.0, 175.0, 0.0};
  48
  49 static const char *vertShaderText =
  50         "void main()\n"
  51         "{ \n"
  52         "       gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n"
  53         "} \n";
  54
  55 static const char *fragShaderTextRed =
  56         "void main()\n"
  57         "{ \n"
  58         "       gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
  59         "} \n";
  60
  61 static const char *fragShaderTextGreen =
  62         "void main()\n"
  63         "{ \n"
  64         "       gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
  65         "} \n";
  66
  67 static void
  68 compileLinkProg(void)
  69 {
  70         GLint stat;
  71
  72         vs = glCreateShader(GL_VERTEX_SHADER);
  73         fsr = glCreateShader(GL_FRAGMENT_SHADER);
  74         fsg = glCreateShader(GL_FRAGMENT_SHADER);
  75         glShaderSource(vs, 1, (const GLchar **) &vertShaderText, NULL);
  76         glShaderSource(fsr, 1, (const GLchar **) &fragShaderTextRed, NULL);
  77         glShaderSource(fsg, 1, (const GLchar **) &fragShaderTextGreen, NULL);
  78         glCompileShader(vs);
  79         glGetShaderiv(vs, GL_COMPILE_STATUS, &stat);
  80         if (!stat) {
  81                 printf("error compiling vertex shader!\n");
  82                 exit(1);
  83         }
  84         glCompileShader(fsr);
  85         glGetShaderiv(fsr, GL_COMPILE_STATUS, &stat);
  86         if (!stat) {
  87                 printf("error compiling fragment red shader!\n");
  88                 exit(1);
  89         }
  90
  91         glCompileShader(fsg);
  92         glGetShaderiv(fsg, GL_COMPILE_STATUS, &stat);
  93         if(!stat) {
  94                 printf("error compiling fragment green shader!\n");
  95                 exit(1);
  96         }
  97
  98         progr = glCreateProgram();
  99         glAttachShader(progr, vs);
 100         glAttachShader(progr, fsr);
 101         glLinkProgram(progr);
 102
 103         progg = glCreateProgram();
 104         glAttachShader(progg, vs);
 105         glAttachShader(progg, fsg);
 106         glLinkProgram(progg);
 107
 108
 109         glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3*sizeof(GLfloat),
 110                                 vertices);
 111
 112         glEnableVertexAttribArray(0);
 113
 114         list = glGenLists(1);
 115         glNewList(list, GL_COMPILE);
 116                 glUseProgram(progg);
 117         glEndList();
 118
 119 }
 120
 121 void
 122 piglit_init(int argc, char **argv)
 123 {
 124         if (!GLEW_VERSION_2_0) {
 125                 printf("Requires OpenGL 2.0\n");
 126                 piglit_report_result(PIGLIT_SKIP);
 127         }
 128
 129         piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
 130
 131         glClearColor(0.2, 0.2, 0.2, 1.0);
 132
 133         compileLinkProg();
 134 }
 135
 136 enum piglit_result
 137 piglit_display(void)
 138 {
 139         GLfloat green[3] = {0.0, 1.0, 0.0};
 140         GLboolean pass = GL_TRUE;
 141
 142         glClear(GL_COLOR_BUFFER_BIT);
 143
 144         glUseProgram(progr);
 145         glCallList(list);
 146
 147         glDrawArrays(GL_TRIANGLE_STRIP,0,4);
 148
 149         pass = piglit_probe_pixel_rgb(125, 150, green);
 150
 151         glFinish();
 152         glutSwapBuffers();
 153
 154         return pass ? PIGLIT_SUCCESS : PIGLIT_FAILURE;
 155 }