tests/spec/arb_draw_elements_base_vertex/bounds.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  *    Eric Anholt <eric@anholt.net>
  25  *    Michal Suchanek <hramrach@centrum.cz>
  26  *    based on mesa demo added by Keith Whitwell <keith@tungstengraphics.com>
  27  */
  28
  29 /** @file draw-elements-base-vertex.c
  30  * Tests ARB_draw_elements_base_vertex functionality by drawing two
  31  * triangles using different base vertices, using the same vertex and
  32  * index buffers.
  33  * In Mesa Gallium 7.11 this causes a crash.
  34  */
  35
  36 #include "piglit-util-gl.h"
  37
  38 PIGLIT_GL_TEST_CONFIG_BEGIN
  39
  40         config.supports_gl_compat_version = 10;
  41
  42         config.window_width = 300;
  43         config.window_height = 300;
  44         config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
  45         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  46
  47 PIGLIT_GL_TEST_CONFIG_END
  48
  49 static GLfloat vertices[][4] = {
  50         {  1, -1, 0, 1 }, /* bottom right */
  51         {  1,  1, 0, 1 }, /*    top right */
  52         { -1,  1, 0, 1 }, /*    top left  */
  53         { -1, -1, 0, 1 }, /* bottom left  */
  54 };
  55 static GLubyte colors[][4] = {
  56         {   0, 255,   0, 0 },
  57         {   0,   0, 255, 0 },
  58         { 255, 255, 255, 0 },
  59         { 255,   0,   0, 0 },
  60 };
  61
  62 void
  63 piglit_init(int argc, char **argv)
  64 {
  65         static const char * program =
  66                 "!!ARBvp1.0\n"
  67                 "MOV result.color, vertex.color;\n"
  68                 "MOV result.position, vertex.position;\n"
  69                 "END\n";
  70         GLuint program_no;
  71
  72         piglit_require_extension("GL_ARB_draw_elements_base_vertex");
  73         piglit_require_extension("GL_ARB_vertex_program");
  74         glGenProgramsARB(1, &program_no);
  75         glBindProgramARB(GL_VERTEX_PROGRAM_ARB, program_no);
  76         glProgramStringARB(GL_VERTEX_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
  77                         strlen(program), program);
  78         assert(glIsProgramARB(program_no));
  79
  80         glMatrixMode(GL_MODELVIEW);
  81         glPushMatrix();
  82         glLoadIdentity();
  83
  84         glEnableClientState(GL_VERTEX_ARRAY);
  85         glVertexPointer(3, GL_FLOAT, sizeof(vertices[0]), vertices);
  86         glEnableClientState(GL_COLOR_ARRAY);
  87         glColorPointer(4, GL_UNSIGNED_BYTE, 0, colors);
  88 }
  89
  90 enum piglit_result
  91 piglit_display(void)
  92 {
  93         GLboolean pass = GL_TRUE;
  94         GLuint indices[] = { 1, 2, 0,
  95                            3, 0, 1 };
  96         static GLfloat test_colors[][3] = {
  97                 { 1, 0, 0 },
  98                 { 0, 1, 0 },
  99                 { 0, 0, 1 },
 100                 { 1, 1, 1 },
 101         };
 102
 103         glViewport(0, 0, piglit_width, piglit_height);
 104         glMatrixMode(GL_PROJECTION);
 105         glLoadIdentity();
 106         glOrtho(-1, 1, -1, 1, -0.5, 1000);
 107         glMatrixMode(GL_MODELVIEW);
 108         glLoadIdentity();
 109
 110         glClearColor(0.3, 0.3, 0.3, 1);
 111         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 112
 113         glEnable(GL_VERTEX_PROGRAM_ARB);
 114         /* draw elements 3,4,5 ->verts 3,0,1 (lower-right tri) */
 115         glDrawElements(GL_TRIANGLES, 3, GL_UNSIGNED_INT, indices + 3);
 116         /* draw elements 0,1,2 ->verts (1+1),(2+1),(0+1) (upper-left tri) */
 117         glDrawElementsBaseVertex(GL_TRIANGLES, 3, GL_UNSIGNED_INT, indices, 1);
 118         glFlush();
 119
 120         pass = piglit_probe_pixel_rgb(0, 0, test_colors[0]) && pass;
 121         pass = piglit_probe_pixel_rgb(piglit_width - 1, 0, test_colors[1]) && pass;
 122         pass = piglit_probe_pixel_rgb(piglit_width - 1, piglit_height - 1, test_colors[2]) && pass;
 123         pass = piglit_probe_pixel_rgb(0, piglit_height - 1, test_colors[3]) && pass;
 124
 125         piglit_present_results();
 126
 127         return pass ? PIGLIT_PASS : PIGLIT_FAIL;
 128 }