---
tests/all.tests | 4 +
.../arb_uniform_buffer_object/CMakeLists.gl.txt | 1 +
.../maxuniformblocksize.c | 237 ++++++++++++++++++++
3 files changed, 242 insertions(+)
create mode 100644 tests/spec/arb_uniform_buffer_object/maxuniformblocksize.c
diff --git a/tests/all.tests b/tests/all.tests
index a471203..74d8f9c 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -1965,6 +1965,10 @@ arb_uniform_buffer_object['layout-std140'] =
concurrent_test('arb_uniform_buffer
arb_uniform_buffer_object['layout-std140-base-size-and-alignment'] =
concurrent_test('arb_uniform_buffer_object-layout-std140-base-size-and-alignment')
arb_uniform_buffer_object['link-mismatch-blocks'] =
concurrent_test('arb_uniform_buffer_object-link-mismatch-blocks')
arb_uniform_buffer_object['maxblocks'] =
concurrent_test('arb_uniform_buffer_object-maxblocks')
+arb_uniform_buffer_object['maxuniformblocksize/vs'] =
concurrent_test('arb_uniform_buffer_object-maxuniformblocksize vs')
+arb_uniform_buffer_object['maxuniformblocksize/vsexceed'] =
concurrent_test('arb_uniform_buffer_object-maxuniformblocksize vsexceed')
+arb_uniform_buffer_object['maxuniformblocksize/fs'] =
concurrent_test('arb_uniform_buffer_object-maxuniformblocksize fs')
+arb_uniform_buffer_object['maxuniformblocksize/fsexceed'] =
concurrent_test('arb_uniform_buffer_object-maxuniformblocksize fsexceed')
arb_uniform_buffer_object['minmax'] =
concurrent_test('arb_uniform_buffer_object-minmax')
arb_uniform_buffer_object['negative-bindbuffer-index'] =
concurrent_test('arb_uniform_buffer_object-negative-bindbuffer-index')
arb_uniform_buffer_object['negative-bindbuffer-target'] =
concurrent_test('arb_uniform_buffer_object-negative-bindbuffer-target')
diff --git a/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt
b/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt
index b2a5b44..b088ab4 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 0000000..d29b0f7
--- /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 <vs | vs_exceed | fs | fs_exceed>\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]);
+}
--
1.7.10.4
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