arb_direct_state_access: Testing glTextureBufferRange.

3 files changed, 146 insertions, 0 deletions

diff --git a/tests/all.py b/tests/all.py
index b661dcaf3..a886c96b9 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -4239,6 +4239,7 @@ with profile.group_manager(
       'create-programpipelines')
     g(['arb_direct_state_access-create-queries'], 'create-queries')
     g(['arb_direct_state_access-create-buffers'], 'create-buffers')
+    g(['arb_direct_state_access-texture-buffer-range'], 'texture-buffer-range')
 
 with profile.group_manager(
         PiglitGLTest,
diff --git a/tests/spec/arb_direct_state_access/CMakeLists.gl.txt b/tests/spec/arb_direct_state_access/CMakeLists.gl.txt
index ac53c453c..aa08eafb8 100644
--- a/tests/spec/arb_direct_state_access/CMakeLists.gl.txt
+++ b/tests/spec/arb_direct_state_access/CMakeLists.gl.txt
@@ -37,4 +37,5 @@ piglit_add_executable (arb_direct_state_access-texture-buffer texture-buffer.c)
 piglit_add_executable (arb_direct_state_access-create-samplers create-samplers.c)
 piglit_add_executable (arb_direct_state_access-create-programpipelines create-programpipelines.c)
 piglit_add_executable (arb_direct_state_access-create-queries create-queries.c)
+piglit_add_executable (arb_direct_state_access-texture-buffer-range texture-buffer-range.c)
 # vim: ft=cmake:
diff --git a/tests/spec/arb_direct_state_access/texture-buffer-range.c b/tests/spec/arb_direct_state_access/texture-buffer-range.c
new file mode 100644
index 000000000..859000eb0
--- /dev/null
+++ b/tests/spec/arb_direct_state_access/texture-buffer-range.c
@@ -0,0 +1,144 @@
+/* Copyright © 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-range.c
+ *
+ * Test that *just* changing the bound range of a TexBO (without changing
+ * anything else) works. This is to demonstrate a bug in Mesa's dirty state
+ * flagging.
+ *
+ * Adapted for testing glTextureBufferRange by Laura Ekstrand, December 2014.
+ */
+
+#include "piglit-util-gl.h"
+
+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
+
+GLuint prog;
+GLuint vao;
+GLuint tbo;
+GLuint tex;
+
+char const *vs_source =
+"#version 140\n"
+"uniform samplerBuffer s;\n"
+"out vec4 color;\n"
+"void main() {\n"
+"	vec4 x = texelFetch(s, gl_VertexID);\n"
+"	gl_Position = vec4(x.xy, 0, 1);\n"
+"	color = vec4(x.zw, 0, 1);\n"
+"}\n";
+
+char const *fs_source =
+"#version 140\n"
+"in vec4 color;\n"
+"out vec4 frag_color;\n"
+"void main() {\n"
+"	frag_color = color;\n"
+"}\n";
+
+float data[] = {
+	-1, -1,		0, 1,
+	0, -1,		0, 1,
+	0, 0,		0, 1,
+	-1, -1,		0, 1,
+	0, 0,		0, 1,
+	-1, 0,		0, 1,
+
+	-1, 0,		0, 0.5,
+	0, 0,		0, 0.5,
+	0, 1,		0, 0.5,
+	-1, 0,		0, 0.5,
+	0, 1,		0, 0.5,
+	-1, 1,		0, 0.5,
+
+	0, 0,		1, 0,
+	1, 0,		1, 0,
+	1, 1,		1, 0,
+	0, 0,		1, 0,
+	1, 1,		1, 0,
+	0, 1,		1, 0,
+
+	0, -1,		0.5, 0,
+	1, -1,		0.5, 0,
+	1, 0,		0.5, 0,
+	0, -1,		0.5, 0,
+	1, 0,		0.5, 0,
+	0, 0,		0.5, 0,
+};
+
+enum piglit_result
+piglit_display(void) {
+	int i;
+	int chunk_size = 24 * sizeof(float);
+	bool pass = true;
+
+	glClearColor(0.2, 0.2, 0.2, 0.2);
+	glClear(GL_COLOR_BUFFER_BIT);
+
+	for (i = 0; i < sizeof(data) / chunk_size; i++) {
+		glTextureBufferRange(tex, GL_RGBA32F,
+				     tbo, i * chunk_size, chunk_size);
+		glDrawArrays(GL_TRIANGLES, 0, 6);
+	}
+
+	for (i = 0; i < sizeof(data) / chunk_size; i++) {
+		float c[4] = {
+			data[i * 24 + 2],
+			data[i * 24 + 3],
+			0,
+			1
+		};
+
+		pass = piglit_probe_rect_rgba(
+			piglit_width * 0.5 * (1 + data[i * 24 + 0]),
+			piglit_height * 0.5 * (1 + data[i * 24 + 1]),
+			piglit_width/2,
+			piglit_height/2, c) && pass;
+	}
+
+	piglit_present_results();
+
+	return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+void
+piglit_init(int argc, char **argv) {
+	prog = piglit_build_simple_program(vs_source, fs_source);
+	glUseProgram(prog);
+
+	glGenVertexArrays(1, &vao);
+	glBindVertexArray(vao);
+
+	glGenBuffers(1, &tbo);
+	glBindBuffer(GL_ARRAY_BUFFER, tbo);
+	glBufferData(GL_ARRAY_BUFFER, sizeof(data), data, GL_STATIC_DRAW);
+
+	glCreateTextures(GL_TEXTURE_BUFFER, 1, &tex);
+	glBindTextureUnit(0, tex);
+}