Attachment 55367 Details for Bug 44613 – test case for rendering FBO with point coordinate

test case for rendering FBO with point coordinate

0001-Add-test-case-of-render-FBO-with-point-coordinate.patch (text/plain), 5.17 KB, created by zhao jian on 2012-01-09 23:46:11 UTC

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Creator: zhao jian

Created: 2012-01-09 23:46:11 UTC

Size: 5.17 KB

patch

obsolete

>From d848afc31f849100b53d3bf8555b39fee3bc2f56 Mon Sep 17 00:00:00 2001
>From: Jian Zhao <jian.j.zhao@intel.com>
>Date: Tue, 10 Jan 2012 15:13:15 +0800
>Subject: [PATCH] Add test case of render FBO with point coordinate.
>
>Add test case of rendering with point coordinate, it should work with
>direct rendering, rendering with FBO.
>
>As the es spec 2.0.25 says:
>"the gl-PointCoord fragment shader input defines a per-fragment coordinate
>space (s; t) where s varies from 0 to 1 across the point horizontally
>left-to-right, and t ranges from 0 to 1 across the point vertically top-to-bottom."
>
>Signed-off-by: Jian Zhao <jian.j.zhao@intel.com>
>---
> tests/bugs/CMakeLists.gl.txt |    1 +
> tests/bugs/gl-pointcoord.c   |  123 ++++++++++++++++++++++++++++++++++++++++++
> 2 files changed, 124 insertions(+), 0 deletions(-)
> create mode 100644 tests/bugs/gl-pointcoord.c
>
>diff --git a/tests/bugs/CMakeLists.gl.txt b/tests/bugs/CMakeLists.gl.txt
>index bce0532..a373fd6 100644
>--- a/tests/bugs/CMakeLists.gl.txt
>+++ b/tests/bugs/CMakeLists.gl.txt
>@@ -17,6 +17,7 @@ link_libraries (
> add_executable (crash-cubemap-order crash-cubemap-order.c)
> add_executable (crash-texparameter-before-teximage crash-texparameter-before-teximage.c)
> add_executable (fdo9833 fdo9833.c)
>+add_executable (gl-pointcoord gl-pointcoord.c)
> add_executable (fdo10370 fdo10370.c)
> add_executable (fdo14575 fdo14575.c)
> add_executable (r300-readcache r300-readcache.c)
>diff --git a/tests/bugs/gl-pointcoord.c b/tests/bugs/gl-pointcoord.c
>new file mode 100644
>index 0000000..7bd204b
>--- /dev/null
>+++ b/tests/bugs/gl-pointcoord.c
>@@ -0,0 +1,123 @@
>+/*
>+ * Copyright Â© 2012 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:
>+ *  *    Jian Zhao <jian.j.zhao@intel.com>
>+ *   *
>+ *
>+ */
>+
>+/**
>+ * \file gl-pointcoord.c
>+ * Verify that applications can use point coordinate correctly,
>+ * especailly with FBO.
>+ */
>+
>+#include "piglit-util.h"
>+
>+int piglit_width = 100, piglit_height = 100;
>+int piglit_window_mode = GLUT_RGB | GLUT_SINGLE;
>+
>+static const char vs_text[] =
>+	"#version 120 \n"
>+	"attribute vec4 vPosition;\n"
>+	"uniform float uPointSize;\n"
>+	"void main()\n"
>+	"{\n"
>+	"gl_PointSize = uPointSize;\n"
>+	"gl_Position = vPosition;\n"
>+	"}\n"
>+	;
>+
>+static const char fs_text[] =
>+	"#version 120 \n"
>+	"void main() { gl_FragColor = vec4(gl_PointCoord.x, gl_PointCoord.y, 0.0, 1.0); }\n"
>+	;
>+static GLuint prog;
>+
>+static const float green[] = { 0.0, 1.0, 0.0, 1.0 };
>+static const float black[] = { 0.0, 0.0, 0.0, 1.0 };
>+static GLenum Origin = GL_UPPER_LEFT;
>+
>+enum piglit_result
>+piglit_display(void)
>+{
>+	GLboolean pass = GL_TRUE;
>+	int pointSizeLoc, maxPointSize;
>+	GLuint fb, rb;
>+
>+	maxPointSize = 64;
>+	glEnable(GL_VERTEX_PROGRAM_POINT_SIZE);
>+#ifdef GL_ARB_point_sprite
>+	glEnable(GL_POINT_SPRITE_ARB);
>+#endif
>+	pointSizeLoc = glGetUniformLocation(prog, "uPointSize");
>+	glUniform1f(pointSizeLoc, maxPointSize);
>+
>+	glPointParameteri(GL_POINT_SPRITE_COORD_ORIGIN, Origin);
>+
>+	glGenRenderbuffers(1, &rb);
>+	glBindRenderbuffer(GL_RENDERBUFFER, rb);
>+	glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA, 100, 100);
>+
>+	glGenFramebuffers(1, &fb);
>+	glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fb);
>+	glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
>+				  GL_RENDERBUFFER, rb);
>+
>+	glClearColor(0.0, 0.0, 0.0, 1.0);
>+	glClear(GL_COLOR_BUFFER_BIT);
>+	glBegin(GL_POINTS);
>+	glVertex2f(0.0, 0.0);
>+	glEnd();
>+
>+	glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
>+	glBindFramebuffer(GL_READ_FRAMEBUFFER, fb);
>+	glBlitFramebuffer(0, 0, 100, 100, 0, 0, 100, 100, GL_COLOR_BUFFER_BIT, GL_NEAREST);
>+	glFlush();
>+
>+	pass &= piglit_probe_pixel_rgb(0, 0, black);
>+	pass &= piglit_probe_pixel_rgb(18, 18, green);
>+
>+	assert(!glGetError());
>+
>+	return pass ? PIGLIT_PASS : PIGLIT_FAIL;
>+}
>+
>+void
>+piglit_init(int argc, char **argv)
>+{
>+	GLuint vs, fs;
>+
>+	piglit_require_vertex_shader();
>+	piglit_require_fragment_shader();
>+
>+	fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs_text);
>+	vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_text);
>+	prog = piglit_link_simple_program(vs, fs);
>+
>+	piglit_LinkProgram(prog);
>+	piglit_link_check_status(prog);
>+
>+	piglit_UseProgram(prog);
>+}
>-- 
>1.6.0.6
>

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