diff options
author | Eric Anholt <eric@anholt.net> | 2012-06-19 15:02:41 -0700 |
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committer | Eric Anholt <eric@anholt.net> | 2012-07-20 14:57:06 -0700 |
commit | 14959d483bddcfb3c567add3ea762bcd246537e6 (patch) | |
tree | 46016361a32205be695f922e9c40dea43a5ef34f /tests/spec/arb_uniform_buffer_object | |
parent | 6d822fd6805d185f6b8d85baf23a50192e30810a (diff) |
GL_ARB_ubo/getactiveuniformblockname: New test for API behavior.
Diffstat (limited to 'tests/spec/arb_uniform_buffer_object')
-rw-r--r-- | tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt | 1 | ||||
-rw-r--r-- | tests/spec/arb_uniform_buffer_object/getactiveuniformblockname.c | 211 |
2 files changed, 212 insertions, 0 deletions
diff --git a/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt b/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt index e2e8b6318..d8c651656 100644 --- a/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt +++ b/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt @@ -12,6 +12,7 @@ link_libraries ( add_executable (arb_uniform_buffer_object-bindbuffer-general-point bindbuffer-general-point.c) add_executable (arb_uniform_buffer_object-buffer-targets buffer-targets.c) +add_executable (arb_uniform_buffer_object-getactiveuniformblockname getactiveuniformblockname.c) add_executable (arb_uniform_buffer_object-getintegeri_v getintegeri_v.c) add_executable (arb_uniform_buffer_object-getprogramiv getprogramiv.c) add_executable (arb_uniform_buffer_object-getuniformblockindex getuniformblockindex.c) diff --git a/tests/spec/arb_uniform_buffer_object/getactiveuniformblockname.c b/tests/spec/arb_uniform_buffer_object/getactiveuniformblockname.c new file mode 100644 index 000000000..3208a19bd --- /dev/null +++ b/tests/spec/arb_uniform_buffer_object/getactiveuniformblockname.c @@ -0,0 +1,211 @@ +/* + * Copyright © 2012 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 getactiveuniformblockname.c + * + * From the GL_ARB_uniform_buffer_object spec: + * + * "An active uniform block's name string can be queried from its + * uniform block index by calling + * + * void GetActiveUniformBlockName(uint program, + * uint uniformBlockIndex, + * sizei bufSize, + * sizei* length, + * char* uniformBlockName); + * + * The string name of the uniform block identified by + * <uniformBlockIndex> is returned into <uniformBlockName>. The + * name is null-terminated. The actual number of characters + * written into <uniformBlockName>, excluding the null + * terminator, is returned in <length>. If <length> is NULL, no + * length is returned. + * + * <bufSize> contains the maximum number of characters (including + * the null terminator) that will be written back to + * <uniformBlockName>. + * + * If an error occurs, nothing will be written to + * <uniformBlockName> or <length>. + * + * ... + * + * The error INVALID_VALUE is generated by GetActiveUniformsiv, + * GetActiveUniformName, GetActiveUniformBlockiv, + * GetActiveUniformBlockName, and UniformBlockBinding if + * <program> is not a value generated by GL. + * + * The error INVALID_VALUE is generated by GetActiveUniformName + * and GetActiveUniformBlockName if <bufSize> is less than zero. + * + * The error INVALID_VALUE is generated by + * GetActiveUniformBlockiv, GetActiveUniformBlockName, and + * UniformBlockBinding if <uniformBlockIndex> is greater than or + * equal to ACTIVE_UNIFORM_BLOCKS." + */ + +#include "piglit-util-gl-common.h" + +PIGLIT_GL_TEST_MAIN( + 10 /*window_width*/, + 10 /*window_height*/, + GLUT_RGB | GLUT_DOUBLE | GLUT_ALPHA) + +void +piglit_init(int argc, char **argv) +{ + int i; + GLuint fs, prog; + const char *source = + "#extension GL_ARB_uniform_buffer_object : enable\n" + "uniform a { float u1; };\n" + "uniform bbb { float u2; };\n" + "uniform cc { float u3; };\n" + "void main() {\n" + " gl_FragColor = vec4(u1 + u2 + u3);\n" + "}\n"; + int blocks; + bool pass = true; + const char *names[3] = {"a", "bbb", "cc"}; + bool found[3] = {false, false, false}; + char no_write; + char fill_char = 0xd0; + + piglit_require_extension("GL_ARB_uniform_buffer_object"); + + fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, source); + prog = piglit_link_simple_program(fs, 0); + if (!fs || !prog) { + fprintf(stderr, "Failed to compile shader:\n%s", source); + piglit_report_result(PIGLIT_FAIL); + } + + glGetProgramiv(prog, GL_ACTIVE_UNIFORM_BLOCKS, &blocks); + assert(blocks == 3); + + for (i = 0; i < blocks; i++) { + GLint written_strlen = 0; + GLint namelen = 9999; + char name[1000]; + int name_index; + + /* This is the size including null terminator. */ + glGetActiveUniformBlockiv(prog, i, GL_UNIFORM_BLOCK_NAME_LENGTH, + &namelen); + + memset(name, 0xd0, sizeof(name)); + glGetActiveUniformBlockName(prog, i, sizeof(name), + &written_strlen, name); + if (written_strlen >= sizeof(name) - 1) { + fprintf(stderr, + "return strlen %d, longer than the buffer size\n", + written_strlen); + pass = false; + continue; + } else if (name[written_strlen] != 0) { + fprintf(stderr, "return name[%d] was %d, expected 0\n", + written_strlen, name[written_strlen]); + pass = false; + continue; + } else if (strlen(name) != written_strlen) { + fprintf(stderr, "return strlen was %d, but \"%s\" " + "has strlen %d\n", written_strlen, name, + (int)strlen(name)); + pass = false; + continue; + } + + for (name_index = 0; name_index < ARRAY_SIZE(names); name_index++) { + if (strcmp(names[name_index], name) == 0) { + if (found[name_index]) { + fprintf(stderr, + "Uniform block \"%s\" " + "returned twice.\n", name); + pass = false; + } + found[name_index] = true; + break; + } + } + if (name_index == ARRAY_SIZE(names)) { + fprintf(stderr, + "block \"%s\" is not a known block name\n", name); + pass = false; + continue; + } + + if (namelen != written_strlen + 1) { + fprintf(stderr, + "block \"%s\" had " + "GL_UNIFORM_BLOCK_NAME_LENGTH %d, expected %d\n", + name, namelen, written_strlen + 1); + pass = false; + continue; + } + + /* Test for overflow by writing to a bufSize equal to + * strlen and checking if a null terminator or + * something landed past that. + */ + memset(name, fill_char, sizeof(name)); + glGetActiveUniformBlockName(prog, i, written_strlen, + NULL, name); + if (name[written_strlen] != fill_char) { + fprintf(stderr, "glGetActiveUniformName overflowed: " + "name[%d] = 0x%02x instead of 0x%02x\n", + written_strlen, name[written_strlen], + fill_char); + pass = false; + } + } + + no_write = fill_char; + glGetActiveUniformBlockName(0xd0d0, 0, 1, NULL, &no_write); + pass = piglit_check_gl_error(GL_INVALID_VALUE) && pass; + if (no_write != fill_char) + pass = false; + + no_write = fill_char; + glGetActiveUniformBlockName(prog, 0, -1, NULL, &no_write); + pass = piglit_check_gl_error(GL_INVALID_VALUE) && pass; + if (no_write != fill_char) + pass = false; + + no_write = fill_char; + glGetActiveUniformBlockName(prog, blocks, 1, NULL, &no_write); + pass = piglit_check_gl_error(GL_INVALID_VALUE) && pass; + if (no_write != fill_char) + pass = false; + + glDeleteProgram(prog); + glDeleteShader(fs); + + piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL); +} + +enum piglit_result piglit_display(void) +{ + /* UNREACHED */ + return PIGLIT_FAIL; +} + |