tests/shaders/glsl-invalid-asm-02.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-02.c
  26  * Attempting to render with an invalid ARB_vp 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 vertex program.
  32  */
  33 #include "piglit-util-gl.h"
  34
  35 static const char fs_text[] =
  36         "void main() { gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0); }";
  37
  38 static const char vp_text[] =
  39         "this won't compile";
  40
  41 PIGLIT_GL_TEST_CONFIG_BEGIN
  42
  43         config.supports_gl_compat_version = 10;
  44
  45         config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
  46
  47 PIGLIT_GL_TEST_CONFIG_END
  48
  49 enum piglit_result
  50 piglit_display(void)
  51 {
  52         static GLboolean logged = GL_FALSE;
  53         GLboolean pass = GL_TRUE;
  54         GLenum err;
  55
  56         glClearColor(0.5, 0.5, 0.5, 0.0);
  57         glClear(GL_COLOR_BUFFER_BIT);
  58
  59         piglit_draw_rect(-1.0, -1.0, 2.0, 2.0);
  60
  61         err = glGetError();
  62         if (err != GL_INVALID_OPERATION) {
  63                 if (!logged) {
  64                         printf("Unexpected OpenGL error state 0x%04x with bad "
  65                                "vertex program at draw (expected 0x%04x).\n",
  66                                err, GL_INVALID_OPERATION);
  67                         logged = GL_TRUE;
  68                 }
  69
  70                 pass = GL_FALSE;
  71         }
  72         return pass ? PIGLIT_PASS : PIGLIT_FAIL;
  73 }
  74
  75 void
  76 piglit_init(int argc, char **argv)
  77 {
  78         GLuint fs;
  79         GLuint vp;
  80         GLuint prog;
  81         GLenum err;
  82
  83         piglit_require_gl_version(20);
  84
  85         piglit_require_extension("GL_ARB_vertex_program");
  86
  87         fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs_text);
  88         prog = piglit_link_simple_program(fs, 0);
  89         glUseProgram(prog);
  90
  91         glGenProgramsARB(1, &vp);
  92         glBindProgramARB(GL_VERTEX_PROGRAM_ARB, vp);
  93         glProgramStringARB(GL_VERTEX_PROGRAM_ARB,
  94                            GL_PROGRAM_FORMAT_ASCII_ARB,
  95                            strlen(vp_text),
  96                            (const GLubyte *) vp_text);
  97
  98         err = glGetError();
  99         if (err != GL_INVALID_OPERATION) {
 100                 printf("Unexpected OpenGL error state 0x%04x with bad "
 101                        "vertex program (expected 0x%04x).\n",
 102                        err, GL_INVALID_OPERATION);
 103                 piglit_report_result(PIGLIT_FAIL);
 104         }
 105
 106         glEnable(GL_VERTEX_PROGRAM_ARB);
 107
 108         /* Clear all GL error state.
 109          */
 110         while (glGetError() != 0)
 111                 /* empty */ ;
 112 }