tests/shaders/glsl-vs-user-varying-ff.c

   1 /*
   2  * Copyright © 2010 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
  24 /**
  25  * \file glsl-vs-user-varying-ff.c
  26  * Test a vertex shader with a user-defined varying used with fixed function
  27  *
  28  * \author Ian Romanick <ian.d.romanick@intel.com>
  29  */
  30 #include "piglit-util-gl.h"
  31
  32 PIGLIT_GL_TEST_CONFIG_BEGIN
  33
  34         config.supports_gl_compat_version = 10;
  35
  36         config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
  37
  38 PIGLIT_GL_TEST_CONFIG_END
  39
  40 static const char vs_text[] =
  41         "varying vec4 color;\n"
  42         "\n"
  43         "void main()\n"
  44         "{\n"
  45         "  gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n"
  46         "  color = vec4(0.0, 1.0, 0.0, 1.0);\n"
  47         "  gl_FrontColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
  48         "}\n"
  49         ;
  50
  51 GLuint prog;
  52
  53 enum piglit_result
  54 piglit_display(void)
  55 {
  56         static const float green[3] = { 0.0, 1.0, 0.0 };
  57         enum piglit_result result = PIGLIT_PASS;
  58
  59         glClear(GL_COLOR_BUFFER_BIT);
  60
  61         piglit_draw_rect(10, 10, 10, 10);
  62
  63         if (!piglit_probe_pixel_rgb(15, 15, green))
  64                 result = PIGLIT_FAIL;
  65
  66         if (!piglit_automatic)
  67                 piglit_present_results();
  68
  69         return result;
  70 }
  71
  72 void
  73 piglit_init(int argc, char **argv)
  74 {
  75         GLuint vs;
  76
  77         piglit_require_gl_version(20);
  78
  79         glClearColor(0.3, 0.3, 0.3, 0.0);
  80         piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
  81
  82         vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_text);
  83
  84         prog = piglit_link_simple_program(vs, 0);
  85
  86         glDeleteShader(vs);
  87
  88         /* Don't try to render if the program failed to link, and linking
  89          * had better succeed!
  90          */
  91         if (!piglit_link_check_status(prog))
  92                 piglit_report_result(PIGLIT_FAIL);
  93
  94         glUseProgram(prog);
  95 }