tests/shaders/glsl-invalid-asm-01.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 DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 /**
  25  * \file glsl-invalid-asm-01.c
  26  * Attempting to render with an invalid ARB_fp shader should generate an error.
  27  *
  28  * Based on code inspection it was found that Mesa does not correctly generate
  29  * the draw-time error if a GLSL shader is used with an invalid assembly
  30  * (GL_ARB_vertex_program or GL_ARB_fragment_program) program.  This test
  31  * attempts to reproduce this failure using an assembly fragment program.
  32  */
  33 #include "piglit-util-gl.h"
  34
  35 static const char vs_text[] =
  36         "void main() { gl_Position = gl_Vertex;"
  37         "gl_FrontColor = vec4(1.0, 0.0, 0.0, 1.0); }";
  38
  39 static const char fp_text[] =
  40         "this won't compile";
  41
  42 PIGLIT_GL_TEST_CONFIG_BEGIN
  43
  44         config.supports_gl_compat_version = 10;
  45
  46         config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
  47
  48 PIGLIT_GL_TEST_CONFIG_END
  49
  50 enum piglit_result
  51 piglit_display(void)
  52 {
  53         static GLboolean logged = GL_FALSE;
  54         GLboolean pass = GL_TRUE;
  55         GLenum err;
  56
  57         glClearColor(0.5, 0.5, 0.5, 0.0);
  58         glClear(GL_COLOR_BUFFER_BIT);
  59
  60         piglit_draw_rect(-1.0, -1.0, 2.0, 2.0);
  61
  62         err = glGetError();
  63         if (err != GL_INVALID_OPERATION) {
  64                 if (!logged) {
  65                         printf("Unexpected OpenGL error state 0x%04x with bad "
  66                                "fragment program at draw (expected 0x%04x).\n",
  67                                err, GL_INVALID_OPERATION);
  68                         logged = GL_TRUE;
  69                 }
  70
  71                 pass = GL_FALSE;
  72         }
  73         return pass ? PIGLIT_PASS : PIGLIT_FAIL;
  74 }
  75
  76 void
  77 piglit_init(int argc, char **argv)
  78 {
  79         GLuint vs;
  80         GLuint fp;
  81         GLuint prog;
  82         GLenum err;
  83
  84         piglit_require_gl_version(20);
  85
  86         piglit_require_extension("GL_ARB_fragment_program");
  87
  88         vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_text);
  89         prog = piglit_link_simple_program(vs, 0);
  90         glUseProgram(prog);
  91
  92         glGenProgramsARB(1, &fp);
  93         glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, fp);
  94         glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB,
  95                            GL_PROGRAM_FORMAT_ASCII_ARB,
  96                            strlen(fp_text),
  97                            (const GLubyte *) fp_text);
  98
  99         err = glGetError();
 100         if (err != GL_INVALID_OPERATION) {
 101                 printf("Unexpected OpenGL error state 0x%04x with bad "
 102                        "fragment program (expected 0x%04x).\n",
 103                        err, GL_INVALID_OPERATION);
 104                 piglit_report_result(PIGLIT_FAIL);
 105         }
 106
 107         glEnable(GL_FRAGMENT_PROGRAM_ARB);
 108
 109         /* Clear all GL error state.
 110          */
 111         while (glGetError() != 0)
 112                 /* empty */ ;
 113 }