tests/general/vs-point_size-zero.c

   1 /*
   2  * Copyright (c) 2012 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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the 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,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NON-INFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS AND/OR THEIR SUPPLIERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  */
  24
  25 #include "piglit-util-gl.h"
  26
  27 PIGLIT_GL_TEST_CONFIG_BEGIN
  28
  29         config.supports_gl_compat_version = 10;
  30
  31         config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
  32
  33 PIGLIT_GL_TEST_CONFIG_END
  34
  35 static const char *vstext =
  36    "void main() \n"
  37    "{ \n"
  38    "   gl_Position = ftransform(); \n"
  39    "   gl_FrontColor = vec4(1.0); \n"
  40    "   gl_PointSize = 0.001; \n"
  41    "} \n";
  42
  43
  44 static GLuint vs, prog;
  45
  46 enum piglit_result
  47 piglit_display(void)
  48 {
  49    GLboolean pass;
  50    float black[] = {0, 0, 0};
  51
  52    glClear(GL_COLOR_BUFFER_BIT);
  53    glUseProgram(prog);
  54    glEnable(GL_VERTEX_PROGRAM_POINT_SIZE);
  55
  56    glBegin(GL_POINTS);
  57    glVertex2i(50, 20);
  58    glEnd();
  59
  60    glUseProgram(0);
  61
  62    pass = !piglit_probe_rect_rgb_silent(49, 19, 3, 3, black);
  63    if (!pass)
  64       puts("Fail: nothing rendered.");
  65
  66    piglit_present_results();
  67
  68    return pass ? PIGLIT_PASS : PIGLIT_FAIL;
  69 }
  70
  71 void
  72 piglit_init(int argc, char **argv)
  73 {
  74    piglit_require_gl_version(20);
  75    vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vstext);
  76    assert(vs);
  77    prog = piglit_link_simple_program(vs, 0);
  78
  79    piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
  80 }