Attachment 35190 Details for Bug 27250 – Piglit test case

[patch] Piglit test case

0001-Add-a-test-for-GL_VERTEX_PROGRAM_POINT_SIZE.patch (text/plain), 5.83 KB, created by Neil Roberts on 2010-04-20 16:00:21 UTC

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Creator: Neil Roberts

Created: 2010-04-20 16:00:21 UTC

Size: 5.83 KB

patch

obsolete

>From 8eac28a12839357487a0e4717ca1bf37dca1b6d4 Mon Sep 17 00:00:00 2001
>From: Neil Roberts <neil@linux.intel.com>
>Date: Tue, 20 Apr 2010 23:32:32 +0100
>Subject: [PATCH] Add a test for GL_VERTEX_PROGRAM_POINT_SIZE
>
>When GL_VERTEX_PROGRAM_POINT_SIZE is enabled the vertex shader should
>be able to write to gl_PointSize to change the size of a point. This
>simple test sets the size to 16 in the shader and verifies that the
>point is large.
>---
> tests/all.tests                       |    1 +
> tests/shaders/CMakeLists.txt          |    1 +
> tests/shaders/glsl-vs-point-size.c    |  112 +++++++++++++++++++++++++++++++++
> tests/shaders/glsl-vs-point-size.vert |    6 ++
> 4 files changed, 120 insertions(+), 0 deletions(-)
> create mode 100644 tests/shaders/glsl-vs-point-size.c
> create mode 100644 tests/shaders/glsl-vs-point-size.vert
>
>diff --git a/tests/all.tests b/tests/all.tests
>index a90acfc..fa1a55d 100644
>--- a/tests/all.tests
>+++ b/tests/all.tests
>@@ -227,6 +227,7 @@ add_plain_test(shaders, 'glsl-lod-bias')
> add_plain_test(shaders, 'vp-ignore-input')
> add_plain_test(shaders, 'glsl-empty-vs-no-fs')
> add_plain_test(shaders, 'glsl-useprogram-displaylist')
>+add_plain_test(shaders, 'glsl-vs-point-size')
> 
> fpgeneric = Group()
> def add_fpgeneric(name):
>diff --git a/tests/shaders/CMakeLists.txt b/tests/shaders/CMakeLists.txt
>index ae97829..c8c2b13 100644
>--- a/tests/shaders/CMakeLists.txt
>+++ b/tests/shaders/CMakeLists.txt
>@@ -96,3 +96,4 @@ add_executable (glsl-empty-vs-no-fs glsl-empty-vs-no-fs.c)
> add_executable (glsl-useprogram-displaylist glsl-useprogram-displaylist.c)
> add_executable (glsl-routing glsl-routing.c)
> add_executable (shader_runner shader_runner.c)
>+add_executable (glsl-vs-point-size glsl-vs-point-size.c)
>diff --git a/tests/shaders/glsl-vs-point-size.c b/tests/shaders/glsl-vs-point-size.c
>new file mode 100644
>index 0000000..3e83154
>--- /dev/null
>+++ b/tests/shaders/glsl-vs-point-size.c
>@@ -0,0 +1,112 @@
>+/*
>+ * Copyright Â© 2010 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.
>+ *
>+ * Authors:
>+ *    Neil Roberts <neil@linux.intel.com>
>+ *
>+ */
>+
>+/** @file glsl-vs-point-size.c
>+ *
>+ * Tests whether a vertex shader can change the point size by writing
>+ * to gl_PointSize.
>+ *
>+ * Bug #27250
>+ */
>+
>+#include "piglit-util.h"
>+
>+int piglit_width = 32, piglit_height = 32;
>+int piglit_window_mode = GLUT_RGB | GLUT_DOUBLE;
>+
>+static GLint prog;
>+
>+static const float white[4] = {1, 1, 1, 1};
>+static const float black[4] = {0, 0, 0, 0};
>+
>+#define POINT_SIZE 16
>+
>+enum piglit_result
>+piglit_display(void)
>+{
>+	GLboolean pass = GL_TRUE;
>+	float vert[2] = { piglit_width / 2, piglit_height / 2 };
>+
>+	/* Clear the window to black */
>+	glClear(GL_COLOR_BUFFER_BIT);
>+
>+	/* Draw a single white point at the centre of the window. The
>+	   vertex shader should make this larger */
>+	glColor3fv(white);
>+	glVertexPointer(2, GL_FLOAT, 0, vert);
>+	glEnableClientState(GL_VERTEX_ARRAY);
>+	glDrawArrays(GL_POINTS, 0, 1);
>+	glDisableClientState(GL_VERTEX_ARRAY);
>+
>+	/* Verify that the point is large by looking at some corner pixels */
>+	pass &= piglit_probe_pixel_rgb(piglit_width / 2 - POINT_SIZE / 2 + 1,
>+				       piglit_height / 2 - POINT_SIZE / 2 + 1,
>+				       white);
>+	pass &= piglit_probe_pixel_rgb(piglit_width / 2 + POINT_SIZE / 2 - 1,
>+				       piglit_height / 2 + POINT_SIZE / 2 - 1,
>+				       white);
>+	/* Sanity check that the corners of the window aren't filled */
>+	pass &= piglit_probe_pixel_rgb(0, 0, black);
>+	pass &= piglit_probe_pixel_rgb(piglit_width - 1, piglit_height - 1,
>+				       black);
>+
>+	glutSwapBuffers();
>+
>+	return pass ? PIGLIT_SUCCESS : PIGLIT_FAILURE;
>+}
>+
>+void
>+piglit_init(int argc, char **argv)
>+{
>+	GLint vs;
>+	GLint point_size_range[2];
>+
>+	if (!GLEW_VERSION_2_0) {
>+		printf("Requires OpenGL 2.0\n");
>+		piglit_report_result(PIGLIT_SKIP);
>+	}
>+	/* If the driver doesn't claim to support the point size the
>+	   shader is going to set then we should skip the test */
>+	glGetIntegerv(GL_ALIASED_POINT_SIZE_RANGE, point_size_range);
>+	if (POINT_SIZE < point_size_range[0] ||
>+	    POINT_SIZE > point_size_range[1]) {
>+		printf("Point size %i not supported\n", POINT_SIZE);
>+		piglit_report_result(PIGLIT_SKIP);
>+	}
>+
>+	piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
>+	glClearColor(0.0, 0.0, 0.0, 1.0);
>+
>+	vs = piglit_compile_shader(GL_VERTEX_SHADER,
>+				   "shaders/glsl-vs-point-size.vert");
>+
>+	prog = piglit_link_simple_program(vs, 0);
>+
>+	glUseProgram(prog);
>+
>+	glEnable(GL_VERTEX_PROGRAM_POINT_SIZE);
>+}
>diff --git a/tests/shaders/glsl-vs-point-size.vert b/tests/shaders/glsl-vs-point-size.vert
>new file mode 100644
>index 0000000..d5ed05a
>--- /dev/null
>+++ b/tests/shaders/glsl-vs-point-size.vert
>@@ -0,0 +1,6 @@
>+void main()
>+{
>+	gl_Position = vec4(0.0, 0.0, 0.0, 1.0);
>+	gl_PointSize = 16.0;
>+	gl_FrontColor = vec4(1.0, 1.0, 1.0, 1.0);
>+}
>-- 
>1.6.5.rc1.46.g4d818
>

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