[Piglit] [PATCH] arb_clear_texture: add a trivial test

Ilia Mirkin imirkin at alum.mit.edu
Thu Mar 6 22:14:49 PST 2014


Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
---

This is my first foray into piglit test-writing. Let me know if I missed
anything (except for better tests -- I know that this is very limited).

This mechanism of transferring the texture to the screen is pretty poor -- it
entirely defeats the point of ARB_clear_texture, which is to allow one to
clear even non-renderable-to textures. I guess I need to create a shader that
uses the texture? Is there an example of a test that does this?

For all its simplicity, this allowed me to debug my impl of this extension on
nv50, which is now no longer completely broken.

 glapi/gl.spec                                  |  41 +++++++++
 tests/all.py                                   |   4 +
 tests/spec/CMakeLists.txt                      |   1 +
 tests/spec/arb_clear_texture/CMakeLists.gl.txt |  13 +++
 tests/spec/arb_clear_texture/CMakeLists.txt    |   1 +
 tests/spec/arb_clear_texture/clear-simple.c    | 113 +++++++++++++++++++++++++
 6 files changed, 173 insertions(+)
 create mode 100644 tests/spec/arb_clear_texture/CMakeLists.gl.txt
 create mode 100644 tests/spec/arb_clear_texture/CMakeLists.txt
 create mode 100644 tests/spec/arb_clear_texture/clear-simple.c

diff --git a/glapi/gl.spec b/glapi/gl.spec
index a8fcc44..6a24f83 100644
--- a/glapi/gl.spec
+++ b/glapi/gl.spec
@@ -16410,6 +16410,47 @@ TextureStorage3DMultisampleEXT(texture, target, samples, internalformat, width,
 	glxflags	ignore
 	offset		?
 
+###############################################################################
+#
+# Extension #ARB145
+# ARB_clear_texture commands
+#
+###############################################################################
+
+ClearTexImage(texture, level, format, type, data)
+	return		void
+	param		texture		UInt32 in value
+	param		level		Int32 in value
+	param		format		GLenum in value
+	param		type		GLenum in value
+	param		data		Void in array [COMPSIZE(format/type)]
+	category	ARB_clear_texture
+	version		4.4
+	extension
+	glxropcode	?
+	glxflags	ignore
+	offset		?
+
+ClearTexSubImage(texture, level, xoffset, yoffset, zoffset, width, height, depth, format, type, data)
+	return		void
+	param		texture		UInt32 in value
+	param		level		Int32 in value
+	param		xoffset		Int32 in value
+	param		yoffset		Int32 in value
+	param		zoffset		Int32 in value
+	param		width		Int32 in value
+	param		height		Int32 in value
+	param		depth		Int32 in value
+	param		format		GLenum in value
+	param		type		GLenum in value
+	param		data		Void in array [COMPSIZE(format/type)]
+	category	ARB_clear_texture
+	version		4.4
+	extension
+	glxropcode	?
+	glxflags	ignore
+	offset		?
+
 
 ###############################################################################
 ###############################################################################
diff --git a/tests/all.py b/tests/all.py
index d6daed2..8ed1d33 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -3075,6 +3075,10 @@ add_concurrent_test(arb_clear_buffer_object, 'arb_clear_buffer_object-sub-overla
 add_concurrent_test(arb_clear_buffer_object, 'arb_clear_buffer_object-sub-simple')
 add_concurrent_test(arb_clear_buffer_object, 'arb_clear_buffer_object-zero-size')
 
+arb_clear_texture = Group()
+spec['ARB_clear_texture'] = arb_clear_texture
+add_concurrent_test(arb_clear_texture, 'arb_clear_texture-clear-simple')
+
 arb_copy_buffer = Group()
 spec['ARB_copy_buffer'] = arb_copy_buffer
 add_plain_test(arb_copy_buffer, 'copy_buffer_coherency')
diff --git a/tests/spec/CMakeLists.txt b/tests/spec/CMakeLists.txt
index 0a513c1..3ea6c1e 100644
--- a/tests/spec/CMakeLists.txt
+++ b/tests/spec/CMakeLists.txt
@@ -2,6 +2,7 @@ add_subdirectory (amd_performance_monitor)
 add_subdirectory (arb_base_instance)
 add_subdirectory (arb_buffer_storage)
 add_subdirectory (arb_clear_buffer_object)
+add_subdirectory (arb_clear_texture)
 add_subdirectory (arb_color_buffer_float)
 add_subdirectory (arb_compute_shader)
 add_subdirectory (arb_debug_output)
diff --git a/tests/spec/arb_clear_texture/CMakeLists.gl.txt b/tests/spec/arb_clear_texture/CMakeLists.gl.txt
new file mode 100644
index 0000000..6a2a7d6
--- /dev/null
+++ b/tests/spec/arb_clear_texture/CMakeLists.gl.txt
@@ -0,0 +1,13 @@
+include_directories(
+	${GLEXT_INCLUDE_DIR}
+	${OPENGL_INCLUDE_PATH}
+)
+
+link_libraries (
+	piglitutil_${piglit_target_api}
+	${OPENGL_gl_LIBRARY}
+)
+
+piglit_add_executable (arb_clear_texture-clear-simple clear-simple.c)
+
+# vim: ft=cmake:
diff --git a/tests/spec/arb_clear_texture/CMakeLists.txt b/tests/spec/arb_clear_texture/CMakeLists.txt
new file mode 100644
index 0000000..144a306
--- /dev/null
+++ b/tests/spec/arb_clear_texture/CMakeLists.txt
@@ -0,0 +1 @@
+piglit_include_target_api()
diff --git a/tests/spec/arb_clear_texture/clear-simple.c b/tests/spec/arb_clear_texture/clear-simple.c
new file mode 100644
index 0000000..520820a
--- /dev/null
+++ b/tests/spec/arb_clear_texture/clear-simple.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright © 2014 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.
+ */
+
+#include "piglit-util-gl-common.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+	config.supports_gl_compat_version = 13;
+	config.supports_gl_core_version = 31;
+
+	config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+static GLuint texture;
+
+void
+piglit_init(int argc, char **argv)
+{
+	int i;
+	float *color = malloc(sizeof(float) * piglit_width * piglit_height * 3);
+	float colors[3] = {1.0, 0.0, 0.0};
+
+	piglit_require_extension("GL_ARB_clear_texture");
+	piglit_require_extension("GL_ARB_framebuffer_object");
+
+	/* Create color data for texture */
+	for(i = 0; i < piglit_width*piglit_height; i++) {
+		color[i*3+0] = colors[0];
+		color[i*3+1] = colors[1];
+		color[i*3+2] = colors[2];
+	}
+
+	glGenTextures(1, &texture);
+
+	/* Create texture */
+	glBindTexture(GL_TEXTURE_2D, texture);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_REPEAT);
+	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, piglit_width, piglit_height,
+		     0, GL_RGB, GL_FLOAT, color);
+
+	if(!piglit_check_gl_error(GL_NO_ERROR))
+		piglit_report_result(PIGLIT_FAIL);
+}
+
+
+enum piglit_result
+piglit_display(void)
+{
+	const float clearColor[3] = { 0.0, 1.0, 0.0 };
+	GLuint fbo;
+	GLenum status;
+	bool pass = true;
+
+	/* Clear texture with glClearTexImage() */
+	glClearTexImage(texture, 0, GL_RGB, GL_FLOAT, clearColor);
+
+	glGenFramebuffers(1, &fbo);
+	glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+	glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, texture, 0);
+	status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
+	if (status != GL_FRAMEBUFFER_COMPLETE) {
+		printf("Framebuffer Status: %s\n",
+		       piglit_get_gl_enum_name(status));
+		return PIGLIT_FAIL;
+	}
+
+	glBindFramebuffer(GL_DRAW_FRAMEBUFFER, piglit_winsys_fbo);
+	glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo);
+	glBlitFramebuffer(0, 0, piglit_width, piglit_height,
+			  0, 0, piglit_width, piglit_height,
+			  GL_COLOR_BUFFER_BIT, GL_NEAREST);
+
+	if (!piglit_check_gl_error(GL_NO_ERROR))
+		pass = false;
+
+	/* Check for passing conditions for glClearTexImage */
+	if (!piglit_probe_rect_rgb(0, 0, piglit_width,
+				   piglit_height, clearColor)) {
+		printf("Incorrect probe value for glClearTexImage test.\n");
+		pass = false;
+	}
+
+	if (!piglit_check_gl_error(GL_NO_ERROR))
+		pass = false;
+
+	piglit_present_results();
+	return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
-- 
1.8.3.2



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