/* * Copyright © 2014 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 loc-boundaries.c * * Tests the boundary values for uniform locations, this is a positive test * for the locations, every check here is expected to pass. * * The GL_ARB_explicit_uniform_location spec says: * "The explicitly defined locations and the generated locations must be * in the range of 0 to MAX_UNIFORM_LOCATIONS minus one." * * "Valid locations for default-block uniform variable locations are in * the range of 0 to the implementation-defined maximum number of * uniform locations." * * This test tests 0, MAX - 1 and a single value in between, shader contains * also uniform without explicit location to see that it does not affect * getting the wanted locations. */ #include "piglit-util-gl.h" PIGLIT_GL_TEST_CONFIG_BEGIN config.supports_gl_compat_version = 30; config.window_visual = PIGLIT_GL_VISUAL_RGB; PIGLIT_GL_TEST_CONFIG_END enum piglit_result piglit_display(void) { return PIGLIT_FAIL; } static const char vs_text[] = "vec4 vertex;\n" "void main() {\n" "gl_Position = vertex;\n" "}"; static const char fs_template[] = "#version 130\n" "#extension GL_ARB_explicit_attrib_location: require\n" "#extension GL_ARB_explicit_uniform_location: require\n" "uniform float a;\n" "layout(location = %d) uniform float r;\n" "layout(location = %d) uniform float g;\n" "layout(location = %d) uniform float b;\n" "void main() {\n" "gl_FragColor = vec4(r, g, b, a);\n" "}"; void piglit_init(int argc, char **argv) { int maxloc; GLuint prog; char *f_sha; piglit_require_extension("GL_ARB_explicit_attrib_location"); piglit_require_extension("GL_ARB_explicit_uniform_location"); glGetIntegerv(GL_MAX_UNIFORM_LOCATIONS, &maxloc); if (!piglit_check_gl_error(GL_NO_ERROR)) piglit_report_result(PIGLIT_FAIL); /* test GL_MAX_UNIFORM_LOCATIONS - 1, 0, and a loc in between (1) */ if (asprintf(&f_sha, fs_template, maxloc - 1, 0, 1) == -1) piglit_report_result(PIGLIT_FAIL); prog = piglit_build_simple_program(vs_text, f_sha); free(f_sha); if (glGetUniformLocation(prog, "r") != maxloc - 1) piglit_report_result(PIGLIT_FAIL); if (glGetUniformLocation(prog, "g") != 0) piglit_report_result(PIGLIT_FAIL); if (glGetUniformLocation(prog, "b") != 1) piglit_report_result(PIGLIT_FAIL); glDeleteProgram(prog); piglit_report_result(PIGLIT_PASS); }