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/* Copyright © 2011 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 getfragdataindex.c
*
* \author Dave Airlie
* heavily inspired by getfragdatalocation.c from Ian Romanick
*/
#include "piglit-util-gl-common.h"
PIGLIT_GL_TEST_MAIN(
100 /*window_width*/,
100 /*window_height*/,
PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE)
static const char *vs_text =
"#version 130\n"
"in vec4 vertex;\n"
"void main() { gl_Position = vertex; }\n"
;
static const char *fs_text =
"#version 130\n"
"out vec4 v;\n"
"out vec4 a[2];\n"
"void main() {\n"
" v = vec4(0.0);\n"
" a[0] = vec4(1.0);\n"
" a[1] = vec4(2.0);\n"
"}\n"
;
enum piglit_result
piglit_display(void)
{
return PIGLIT_FAIL;
}
void piglit_init(int argc, char **argv)
{
GLint max_draw_buffers, max_dual_source;
GLuint prog;
GLuint vs;
GLuint fs;
GLint idx;
piglit_require_gl_version(30);
piglit_require_extension("GL_ARB_blend_func_extended");
/* This test needs some number of draw buffers, so make sure the
* implementation isn't broken. This enables the test to generate a
* useful failure message.
*/
glGetIntegerv(GL_MAX_DRAW_BUFFERS, &max_draw_buffers);
if (max_draw_buffers < 8) {
fprintf(stderr,
"OpenGL 3.0 requires GL_MAX_DRAW_BUFFERS >= 8. "
"Only got %d!\n",
max_draw_buffers);
piglit_report_result(PIGLIT_FAIL);
}
glGetIntegerv(GL_MAX_DUAL_SOURCE_DRAW_BUFFERS, &max_dual_source);
if (max_dual_source < 1) {
fprintf(stderr,
"ARB_blend_func_extended requires GL_MAX_DUAL_SOURCE_DRAW_BUFFERS >= 1. "
"Only got %d!\n",
max_dual_source);
piglit_report_result(PIGLIT_FAIL);
}
prog = glCreateProgram();
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_text);
fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs_text);
glAttachShader(prog, vs);
glAttachShader(prog, fs);
if (!piglit_check_gl_error(GL_NO_ERROR))
piglit_report_result(PIGLIT_FAIL);
/* Page 237 (page 253 of the PDF) of the OpenGL 3.0 spec says:
*
* "If program has not been successfully linked, the error INVALID
* OPERATION is generated. If name is not a varying out variable,
* or if an error occurs, -1 will be returned."
*/
printf("Querying index before linking...\n");
idx = glGetFragDataIndex(prog, "v");
if (!piglit_check_gl_error(GL_INVALID_OPERATION))
piglit_report_result(PIGLIT_FAIL);
if (idx != -1) {
fprintf(stderr, "Expected index = -1, got %d\n", idx);
piglit_report_result(PIGLIT_FAIL);
}
glLinkProgram(prog);
if (!piglit_check_gl_error(GL_NO_ERROR))
piglit_report_result(PIGLIT_FAIL);
if (!piglit_link_check_status(prog)) {
piglit_report_result(PIGLIT_FAIL);
}
printf("Querying index of nonexistent variable...\n");
idx = glGetFragDataIndex(prog, "waldo");
if (!piglit_check_gl_error(GL_NO_ERROR))
piglit_report_result(PIGLIT_FAIL);
if (idx != -1) {
fprintf(stderr, "Expected index = -1, got %d\n", idx);
piglit_report_result(PIGLIT_FAIL);
}
piglit_report_result(PIGLIT_PASS);
}
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