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/*
* Copyright © 2013 Marek Olšák <maraeo@gmail.com>
* Copyright © 2013 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.
*/
/**
* Tests if PRIMITIVES_GENERATED works with transform feedback disabled.
*
* From EXT_transform_feedback:
* "the primitives-generated count is incremented every time a primitive
* reaches the Discarding Rasterization stage"
*/
#include "piglit-util-gl.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 10;
config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
config.khr_no_error_support = PIGLIT_NO_ERRORS;
PIGLIT_GL_TEST_CONFIG_END
static const char *vstext = "void main() { gl_Position = gl_Vertex; }";
void piglit_init(int argc, char **argv)
{
unsigned qresult;
int expected = 2;
GLuint vs;
GLuint prog;
GLuint q;
/* Check the driver. */
piglit_require_gl_version(15);
piglit_require_GLSL();
piglit_require_transform_feedback();
glGenQueries(1, &q);
glEnable(GL_RASTERIZER_DISCARD);
/* Create shaders. */
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vstext);
prog = glCreateProgram();
glAttachShader(prog, vs);
glLinkProgram(prog);
if (!piglit_link_check_status(prog)) {
glDeleteProgram(prog);
piglit_report_result(PIGLIT_FAIL);
}
glUseProgram(prog);
/* Draw a rectangle; make sure two primitives were generated. */
glBeginQuery(GL_PRIMITIVES_GENERATED, q);
piglit_draw_rect(-1, -1, 2, 2);
glEndQuery(GL_PRIMITIVES_GENERATED);
glGetQueryObjectuiv(q, GL_QUERY_RESULT, &qresult);
if (qresult != expected) {
printf("Primitives generated: %i, Expected: %i\n",
qresult, expected);
piglit_report_result(PIGLIT_FAIL);
}
piglit_report_result(PIGLIT_PASS);
}
enum piglit_result piglit_display(void)
{
return PIGLIT_FAIL; /* should not get here */
}
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