---
tests/all.py | 1 +
.../arb_texture_buffer_object/CMakeLists.gl.txt | 1 +
tests/spec/arb_texture_buffer_object/max-size.c | 99
++++++++++++++++++++++
3 files changed, 101 insertions(+)
create mode 100644 tests/spec/arb_texture_buffer_object/max-size.c
diff --git a/tests/all.py b/tests/all.py
index 4fbe75b..761ec5c 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -2372,6 +2372,7 @@ with profile.group_manager(
g(['arb_texture_buffer_object-get'], 'get')
g(['arb_texture_buffer_object-fetch-outside-bounds'],
'fetch-outside-bounds')
+ g(['arb_texture_buffer_object-max-size'], 'max-size')
g(['arb_texture_buffer_object-minmax'], 'minmax')
g(['arb_texture_buffer_object-negative-bad-bo'], 'negative-bad-bo')
g(['arb_texture_buffer_object-negative-bad-format'],
'negative-bad-format')
diff --git a/tests/spec/arb_texture_buffer_object/CMakeLists.gl.txt
b/tests/spec/arb_texture_buffer_object/CMakeLists.gl.txt
index 5019e52..2971582 100644
--- a/tests/spec/arb_texture_buffer_object/CMakeLists.gl.txt
+++ b/tests/spec/arb_texture_buffer_object/CMakeLists.gl.txt
@@ -14,6 +14,7 @@ piglit_add_executable
(arb_texture_buffer_object-data-sync data-sync.c)
piglit_add_executable (arb_texture_buffer_object-dlist dlist.c)
piglit_add_executable (arb_texture_buffer_object-formats formats.c)
piglit_add_executable (arb_texture_buffer_object-get get.c)
+piglit_add_executable (arb_texture_buffer_object-max-size max-size.c)
piglit_add_executable (arb_texture_buffer_object-minmax minmax.c)
piglit_add_executable (arb_texture_buffer_object-negative-bad-bo
negative-bad-bo.c)
piglit_add_executable (arb_texture_buffer_object-negative-bad-format
negative-bad-format.c)
diff --git a/tests/spec/arb_texture_buffer_object/max-size.c
b/tests/spec/arb_texture_buffer_object/max-size.c
new file mode 100644
index 0000000..cbbbeaf
--- /dev/null
+++ b/tests/spec/arb_texture_buffer_object/max-size.c
@@ -0,0 +1,99 @@
+/* Copyright © 2015 Ilia Mirkin
+ *
+ * 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 max-size.c
+ *
+ * Tests that we can sample a maximally-sized texture buffer.
+ */
+
+#include "piglit-util-gl.h"
+
+enum piglit_result
+piglit_display(void)
+{
+ static const float green[4] = {0, 1, 0, 0};
+ bool pass;
+
+ glViewport(0, 0, piglit_width, piglit_height);
+ glClearColor(0.2, 0.2, 0.2, 0.2);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ piglit_draw_rect(-1, -1, 2, 2);
+
+ pass = piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height,
green);
+
+ piglit_present_results();
+
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+void
+piglit_init(int argc, char **argv)
+{
+ static const char *vs_source =
+ "#version 140\n"
+ "in vec4 piglit_vertex;\n"
+ "void main()\n"
+ "{\n"
+ " gl_Position = piglit_vertex;\n"
+ "}\n";
+
+ static const char *fs_source =
+ "#version 140\n"
+ "uniform samplerBuffer s;\n"
+ "uniform int offset;\n"
+ "void main()\n"
+ "{\n"
+ " gl_FragColor = texelFetch(s, offset);\n"
+ "}\n";
+
+ GLuint tex, tbo;
+ static const uint8_t data[4] = {0x0, 0xff, 0x0, 0x0};
+ GLuint prog;
+ GLint max, offset;
+
+ prog = piglit_build_simple_program(vs_source, fs_source);
+ glUseProgram(prog);
+
+ glGenBuffers(1, &tbo);
+ glBindBuffer(GL_TEXTURE_BUFFER, tbo);
+
+ glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_BUFFER, tex);
+
+ glGetIntegerv(GL_MAX_TEXTURE_BUFFER_SIZE, &max);
+ max -= max % sizeof(data);
+
+ glTexBuffer(GL_TEXTURE_BUFFER, GL_RGBA8, tbo);
+ glBufferData(GL_TEXTURE_BUFFER, max, NULL, GL_STATIC_READ);
+ glBufferSubData(GL_TEXTURE_BUFFER,
+ max - sizeof(data), sizeof(data), data);
+
+ offset = max / sizeof(data) - 1;
+ glUniform1i(glGetUniformLocation(prog, "offset"), offset);
+ printf("MAX_TEXTURE_BUFFER_SIZE: %d, offset: %d\n", max, offset);
+}
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+ config.supports_gl_core_version = 31;
+ config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
+PIGLIT_GL_TEST_CONFIG_END
