[Piglit] [PATCH 20/24] arb_direct_state_access: Added test for glTextureBuffer.

[Laura Ekstrand]

---
 tests/all.py                                       |   1 +
 .../spec/arb_direct_state_access/CMakeLists.gl.txt |   1 +
 .../spec/arb_direct_state_access/texture-buffer.c  | 106 +++++++++++++++++++++
 3 files changed, 108 insertions(+)
 create mode 100644 tests/spec/arb_direct_state_access/texture-buffer.c

diff --git a/tests/all.py b/tests/all.py
index 0ec4f5f..aa7ffd8 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -4325,6 +4325,7 @@ spec['ARB_direct_state_access']['gettextureimage-targets'] = PiglitGLTest('arb_d
 spec['ARB_direct_state_access']['compressedtextureimage'] = PiglitGLTest('arb_direct_state_access-compressedtextureimage GL_COMPRESSED_RGBA_FXT1_3DFX', run_concurrent=True)
 spec['ARB_direct_state_access']['getcompressedtextureimage'] = PiglitGLTest('arb_direct_state_access-getcompressedtextureimage', run_concurrent=True)
 spec['ARB_direct_state_access']['texture-storage-multisample'] = PiglitGLTest('arb_direct_state_access-texture-storage-multisample', run_concurrent=True)
+spec['ARB_direct_state_access']['texture-buffer'] = PiglitGLTest('arb_direct_state_access-texture-buffer', run_concurrent=True)
 
 profile.tests['hiz'] = hiz
 profile.tests['fast_color_clear'] = fast_color_clear
diff --git a/tests/spec/arb_direct_state_access/CMakeLists.gl.txt b/tests/spec/arb_direct_state_access/CMakeLists.gl.txt
index e7ca144..2af268b 100644
--- a/tests/spec/arb_direct_state_access/CMakeLists.gl.txt
+++ b/tests/spec/arb_direct_state_access/CMakeLists.gl.txt
@@ -26,4 +26,5 @@ piglit_add_executable (arb_direct_state_access-gettextureimage-targets gettextur
 piglit_add_executable (arb_direct_state_access-compressedtextureimage compressedtextureimage.c)
 piglit_add_executable (arb_direct_state_access-getcompressedtextureimage getcompressedtextureimage.c)
 piglit_add_executable (arb_direct_state_access-texture-storage-multisample texture-storage-multisample.c)
+piglit_add_executable (arb_direct_state_access-texture-buffer texture-buffer.c)
 # vim: ft=cmake:
diff --git a/tests/spec/arb_direct_state_access/texture-buffer.c b/tests/spec/arb_direct_state_access/texture-buffer.c
new file mode 100644
index 0000000..1246071
--- /dev/null
+++ b/tests/spec/arb_direct_state_access/texture-buffer.c
@@ -0,0 +1,106 @@
+/*
+ * Copyright © 2013, 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 texture-buffer.c
+ *
+ * Tests that glBufferData() synchronizes correctly with TBO rendering.
+ *
+ * Caught a bug in the i965 driver after a core Mesa refactor.
+ *
+ * Adapted to test glTextureBuffer by Laura Ekstrand (December 2014).
+ */
+
+#include "piglit-util-gl.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+	config.supports_gl_compat_version = 10;
+	config.supports_gl_core_version = 31;
+
+	config.window_visual = PIGLIT_GL_VISUAL_DOUBLE |
+			       PIGLIT_GL_VISUAL_RGBA;
+PIGLIT_GL_TEST_CONFIG_END
+
+enum piglit_result
+piglit_display(void)
+{
+	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"
+		"void main()\n"
+		"{\n"
+		"	gl_FragColor = texelFetch(s, 0);\n"
+		"}\n";
+
+	bool pass = true;
+	GLuint tex, bo;
+	GLuint prog;
+	float green[] = {0, 1, 0, 0};
+	float blue[] =  {0, 0, 1, 0};
+	uint8_t g_rgba8[] = {0x00, 0xff, 0x00, 0x00};
+	uint8_t b_rgba8[] = {0x00, 0x00, 0xff, 0x00};
+
+	prog = piglit_build_simple_program(vs_source, fs_source);
+	glUseProgram(prog);
+
+	glGenBuffers(1, &bo);
+	glBindBuffer(GL_TEXTURE_BUFFER, bo);
+	glBufferData(GL_TEXTURE_BUFFER, sizeof(g_rgba8), g_rgba8,
+		     GL_STREAM_DRAW);
+
+	glCreateTextures(GL_TEXTURE_BUFFER, 1, &tex);
+	glTextureBuffer(tex, GL_RGBA8, bo);
+	glBindTextureUnit(0, tex);
+
+	piglit_draw_rect(-1, -1, 1, 2);
+	glBufferData(GL_TEXTURE_BUFFER, sizeof(b_rgba8), b_rgba8,
+		     GL_STREAM_DRAW);
+	piglit_draw_rect(0, -1, 1, 2);
+
+	pass = pass && piglit_probe_rect_rgba(0, 0,
+					      piglit_width / 2, piglit_height,
+					      green);
+	pass = pass && piglit_probe_rect_rgba(piglit_width / 2, 0,
+					      piglit_width / 2, piglit_height,
+					      blue);
+
+	piglit_present_results();
+
+	return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+void
+piglit_init(int argc, char **argv)
+{
+	piglit_require_extension("GL_ARB_direct_state_access");
+	piglit_require_GLSL_version(140);
+	if (piglit_get_gl_version() < 31)
+		piglit_require_extension("GL_ARB_texture_buffer_object");
+}
-- 
2.1.0