From 73337597280a52721cb6cb5330e401287f87b8f9 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Fri, 14 Dec 2012 23:59:48 -0800 Subject: arb_uniform_buffer_object: Add new tests for GL_MAX_UNIFORM_BLOCK_SIZE. --- .../arb_uniform_buffer_object/CMakeLists.gl.txt | 1 + .../maxuniformblocksize.c | 237 +++++++++++++++++++++ 2 files changed, 238 insertions(+) create mode 100644 tests/spec/arb_uniform_buffer_object/maxuniformblocksize.c (limited to 'tests/spec') diff --git a/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt b/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt index b2a5b445b..b088ab46b 100644 --- a/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt +++ b/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt @@ -30,6 +30,7 @@ add_executable (arb_uniform_buffer_object-layout-std140 layout-std140.c) add_executable (arb_uniform_buffer_object-layout-std140-base-size-and-alignment layout-std140-base-size-and-alignment.c uniform-types.c) add_executable (arb_uniform_buffer_object-link-mismatch-blocks link-mismatch-blocks.c) add_executable (arb_uniform_buffer_object-maxblocks maxblocks.c) +add_executable (arb_uniform_buffer_object-maxuniformblocksize maxuniformblocksize.c) add_executable (arb_uniform_buffer_object-minmax minmax.c) add_executable (arb_uniform_buffer_object-negative-bindbuffer-index negative-bindbuffer-index.c) add_executable (arb_uniform_buffer_object-negative-bindbuffer-target negative-bindbuffer-target.c) diff --git a/tests/spec/arb_uniform_buffer_object/maxuniformblocksize.c b/tests/spec/arb_uniform_buffer_object/maxuniformblocksize.c new file mode 100644 index 000000000..d29b0f759 --- /dev/null +++ b/tests/spec/arb_uniform_buffer_object/maxuniformblocksize.c @@ -0,0 +1,237 @@ +/* + * 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 maxblocks.c + * + * Tests linking and drawing with uniform buffer objects of size + * MAX_UNIFORM_BLOCK_SIZE and MAX_UNIFORM_BLOCK_SIZE + 4. + * + * We test the max size + 4 because implementations are allowed to + * link and draw beyond the exposed limits, but at that point there + * are no guarantees it will link. Those tests are the "vsexceed" and + * "fsexceed" arguments. + */ + +#define _GNU_SOURCE +#include "piglit-util-gl-common.h" + +PIGLIT_GL_TEST_CONFIG_BEGIN + + config.supports_gl_compat_version = 10; + + config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_ALPHA; + +PIGLIT_GL_TEST_CONFIG_END + +static enum { + VS, + VS_EXCEED, + FS, + FS_EXCEED, +} mode; + +static void +usage(const char *name) +{ + fprintf(stderr, "usage: %s \n", + name); + piglit_report_result(PIGLIT_FAIL); +} + +enum piglit_result +piglit_display(void) +{ + const char *vs_ubo_template = + "#extension GL_ARB_uniform_buffer_object : enable\n" + "\n" + "varying vec4 vary;" + "\n" + "layout(std140) uniform ubo {\n" + " vec4 v[%d];\n" + "};\n" + "uniform int i;\n" + "\n" + "void main() {\n" + " gl_Position = gl_Vertex;\n" + " vary = v[i];\n" + "}\n"; + + const char *fs_template = + "#extension GL_ARB_uniform_buffer_object : enable\n" + "\n" + "varying vec4 vary;" + "\n" + "void main() {\n" + " gl_FragColor = vary;\n" + "}\n"; + + const char *vs_template = + "#extension GL_ARB_uniform_buffer_object : enable\n" + "\n" + "void main() {\n" + " gl_Position = gl_Vertex;\n" + "}\n"; + + const char *fs_ubo_template = + "#extension GL_ARB_uniform_buffer_object : enable\n" + "\n" + "layout(std140) uniform ubo {\n" + " vec4 v[%d];\n" + "};\n" + "uniform int i;\n" + "\n" + "void main() {\n" + " gl_FragColor = v[i];\n" + "}\n"; + + char *vs_source, *fs_source; + GLint max_size, vec4s, i_location; + GLuint vs, fs, prog, bo; + GLenum target; + float *data; + size_t size; + bool pass = true; + bool may_link_fail; + const float green[4] = { 0, 1, 0, 0 }; + + piglit_require_extension("GL_ARB_uniform_buffer_object"); + + glGetIntegerv(GL_MAX_UNIFORM_BLOCK_SIZE, &max_size); + printf("Max uniform block size: %d\n", max_size); + vec4s = max_size / 4 / 4; + + switch (mode) { + case VS: + target = GL_VERTEX_SHADER; + may_link_fail = false; + break; + case VS_EXCEED: + target = GL_VERTEX_SHADER; + may_link_fail = true; + vec4s++; + break; + case FS: + target = GL_FRAGMENT_SHADER; + may_link_fail = false; + break; + case FS_EXCEED: + target = GL_FRAGMENT_SHADER; + may_link_fail = true; + vec4s++; + break; + } + + switch (target) { + case GL_VERTEX_SHADER: + asprintf(&vs_source, vs_ubo_template, vec4s); + asprintf(&fs_source, fs_template); + printf("Testing VS with uniform block vec4 v[%d]\n", vec4s); + break; + case GL_FRAGMENT_SHADER: + asprintf(&vs_source, vs_template); + asprintf(&fs_source, fs_ubo_template, vec4s); + printf("Testing FS with uniform block vec4 v[%d]\n", vec4s); + break; + default: + piglit_report_result(PIGLIT_FAIL); + } + + vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_source); + if (!vs) { + fprintf(stderr, "Failed to compile VS:\n%s", vs_source); + piglit_report_result(PIGLIT_FAIL); + } + + fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs_source); + if (!fs) { + fprintf(stderr, "Failed to compile FS:\n%s", fs_source); + piglit_report_result(PIGLIT_FAIL); + } + + prog = glCreateProgram(); + glAttachShader(prog, vs); + glAttachShader(prog, fs); + glLinkProgram(prog); + + if (may_link_fail) { + if (!piglit_link_check_status_quiet(prog)) { + printf("Failed to link with uniform block vec4 " + "v[%d]\n", vec4s); + piglit_report_result(PIGLIT_PASS); + } + } else { + if (!piglit_link_check_status_quiet(prog)) { + fprintf(stderr, + "Failed to link with uniform block vec4 " + "v[%d]\n", vec4s); + return PIGLIT_FAIL; + } + } + + size = vec4s * 4 * sizeof(float); + glGenBuffers(1, &bo); + glBindBuffer(GL_UNIFORM_BUFFER, bo); + glBufferData(GL_UNIFORM_BUFFER, size, NULL, GL_DYNAMIC_DRAW); + data = glMapBuffer(GL_UNIFORM_BUFFER, GL_READ_WRITE); + memset(data, 0, size); + + data[(vec4s - 1) * 4 + 0] = 0.0; + data[(vec4s - 1) * 4 + 1] = 1.0; + data[(vec4s - 1) * 4 + 2] = 0.0; + data[(vec4s - 1) * 4 + 3] = 0.0; + + glUseProgram(prog); + i_location = glGetUniformLocation(prog, "i"); + glUniform1i(i_location, vec4s - 1); + + glUniformBlockBinding(prog, 0, 0); + glBindBufferBase(GL_UNIFORM_BUFFER, 0, bo); + piglit_draw_rect(-1, -1, 2, 2); + + pass = piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height, green); + + glDeleteProgram(prog); + + piglit_present_results(); + + return pass ? PIGLIT_PASS : PIGLIT_FAIL; +} + + +void +piglit_init(int argc, char **argv) +{ + if (argc < 2) + usage(argv[0]); + + if (strcmp(argv[1], "vs") == 0) + mode = VS; + else if (strcmp(argv[1], "vsexceed") == 0) + mode = VS_EXCEED; + else if (strcmp(argv[1], "fs") == 0) + mode = FS; + else if (strcmp(argv[1], "fsexceed") == 0) + mode = FS_EXCEED; + else + usage(argv[0]); +} -- cgit v1.2.3