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/*
* Copyright © 2010 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
/**
* \file useshaderprogram-bad-program.c
* Call glUseShaderProgramEXT with a bad program, verify the error generated
*
* \author Ian Romanick <ian.d.romanick@intel.com>
*/
#include "piglit-util-gl-common.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.window_width = 100;
config.window_height = 100;
config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
PIGLIT_GL_TEST_CONFIG_END
static const char bad_vs_text[] =
"vec4 my_ftransform(void);\n"
"void main() { gl_Position = my_ftransform(); }";
static const char good_vs_text[] =
"void main() { gl_Position = gl_Vertex; }";
enum piglit_result
piglit_display(void)
{
return PIGLIT_FAIL;
}
void
piglit_init(int argc, char **argv)
{
enum piglit_result result = PIGLIT_PASS;
GLenum err;
GLint ok;
GLuint prog;
GLuint vs;
piglit_require_gl_version(20);
piglit_require_extension("GL_EXT_separate_shader_objects");
printf("Trying shader with unresolved external symbol...\n");
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, bad_vs_text);
prog = glCreateProgram();
glAttachShader(prog, vs);
glLinkProgram(prog);
glDeleteShader(vs);
ok = piglit_link_check_status_quiet(prog);
if (ok) {
fprintf(stderr,
"Linking with unresolved symbol succeeded when it "
"should have failed.\n");
piglit_report_result(PIGLIT_FAIL);
}
/* There shouldn't be any GL errors, but clear them all just to be
* sure.
*/
while (glGetError() != 0)
/* empty */ ;
/* The specified program is not linked. This should generate
* the error GL_INVALID_OPERATION.
*/
glUseShaderProgramEXT(GL_VERTEX_SHADER, prog);
err = glGetError();
if (err != GL_INVALID_OPERATION) {
printf("Unexpected OpenGL error state 0x%04x for "
"glUseShaderProgramEXT called with\n"
"an unlinked shader program (expected 0x%04x).\n",
err, GL_INVALID_OPERATION);
result = PIGLIT_FAIL;
}
glDeleteProgram(prog);
glUseProgram(0);
/* Try again with a shader program that could be linked but wasn't.
*/
printf("Trying unlinked, valid shader...\n");
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, good_vs_text);
prog = glCreateProgram();
glAttachShader(prog, vs);
glDeleteShader(vs);
/* There shouldn't be any GL errors, but clear them all just to be
* sure.
*/
while (glGetError() != 0)
/* empty */ ;
/* The specified program is not linked. This should generate
* the error GL_INVALID_OPERATION.
*/
glUseShaderProgramEXT(GL_VERTEX_SHADER, prog);
err = glGetError();
if (err != GL_INVALID_OPERATION) {
printf("Unexpected OpenGL error state 0x%04x for "
"glUseShaderProgramEXT called with\n"
"an unlinked shader program (expected 0x%04x).\n",
err, GL_INVALID_OPERATION);
result = PIGLIT_FAIL;
}
glDeleteProgram(prog);
glUseProgram(0);
piglit_report_result(result);
}
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