Attachment 54172 Details for Bug 43568 – piglit test case to reproduce it

piglit test case to reproduce it

0001-Add-a-test-case-on-glsl-built-in-function-textureLod.patch (text/plain), 5.80 KB, created by zhao jian on 2011-12-07 01:28:00 UTC

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Creator: zhao jian

Created: 2011-12-07 01:28:00 UTC

Size: 5.80 KB

patch

obsolete

>From 464a7358a0915913b21e28da33159002b31d895e Mon Sep 17 00:00:00 2001
>From: Jian Zhao <jian.j.zhao@intel.com>
>Date: Wed, 7 Dec 2011 16:45:21 +0800
>Subject: [PATCH] Add a test case on glsl built in function textureLod and
> textureGrad, and verify that textureGrad may equal to
> textureLod for sampler2D.
>
>---
> tests/shaders/CMakeLists.gl.txt  |    1 +
> tests/shaders/glsl-tex-grad.c    |   66 ++++++++++++++++++++++++++++++++++++
> tests/shaders/glsl-tex-grad.frag |   69 ++++++++++++++++++++++++++++++++++++++
> tests/shaders/glsl-tex-grad.vert |   10 +++++
> 4 files changed, 146 insertions(+), 0 deletions(-)
> create mode 100644 tests/shaders/glsl-tex-grad.c
> create mode 100644 tests/shaders/glsl-tex-grad.frag
> create mode 100644 tests/shaders/glsl-tex-grad.vert
>
>diff --git a/tests/shaders/CMakeLists.gl.txt b/tests/shaders/CMakeLists.gl.txt
>index 175458c..f7368df 100644
>--- a/tests/shaders/CMakeLists.gl.txt
>+++ b/tests/shaders/CMakeLists.gl.txt
>@@ -50,6 +50,7 @@ add_executable (glsl-arb-fragment-coord-conventions glsl-arb-fragment-coord-conv
> add_executable (glsl-arb-fragment-coord-conventions-define glsl-arb-fragment-coord-conventions-define.c)
> add_executable (glsl-bindattriblocation glsl-bindattriblocation.c)
> add_executable (glsl-bug-22603 glsl-bug-22603.c)
>+add_executable (glsl-tex-grad glsl-tex-grad.c)
> add_executable (glsl-dlist-getattriblocation glsl-dlist-getattriblocation.c)
> add_executable (glsl-explicit-location-01 glsl-explicit-location-01.c)
> add_executable (glsl-explicit-location-02 glsl-explicit-location-02.c)
>diff --git a/tests/shaders/glsl-tex-grad.c b/tests/shaders/glsl-tex-grad.c
>new file mode 100644
>index 0000000..f3e6277
>--- /dev/null
>+++ b/tests/shaders/glsl-tex-grad.c
>@@ -0,0 +1,66 @@
>+/*
>+ * Copyright Â© 2011 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 glsl-tex-grad.c.
>+ *
>+ * Verify that textureGrad may equal to textureLod for sampler2D
>+ *
>+ * \author Jian Zhao <jian.j.zhao@intel.com>
>+ */
>+
>+#include "piglit-util.h"
>+
>+int piglit_width = 100, piglit_height = 100;
>+int piglit_window_mode = GLUT_RGB | GLUT_DOUBLE;
>+
>+enum piglit_result
>+piglit_display(void)
>+{
>+	return PIGLIT_FAIL;
>+}
>+
>+void piglit_init(int argc, char **argv)
>+{
>+	GLint vert, frag;
>+	GLint prog;
>+	GLboolean ok;
>+
>+
>+	vert = piglit_compile_shader(GL_VERTEX_SHADER,
>+				     "shaders/glsl-tex-grad.vert");
>+	frag = piglit_compile_shader(GL_FRAGMENT_SHADER,
>+				     "shaders/glsl-tex-grad.frag");
>+	prog = glCreateProgram();
>+	glAttachShader(prog, vert);
>+	glAttachShader(prog, frag);
>+
>+	glLinkProgram(prog);
>+
>+	ok = piglit_link_check_status(prog);
>+	if (ok == GL_TRUE)
>+		ok = PIGLIT_PASS;
>+
>+	piglit_report_result(ok);
>+}
>+
>diff --git a/tests/shaders/glsl-tex-grad.frag b/tests/shaders/glsl-tex-grad.frag
>new file mode 100644
>index 0000000..f203122
>--- /dev/null
>+++ b/tests/shaders/glsl-tex-grad.frag
>@@ -0,0 +1,69 @@
>+#version 130
>+
>+precision highp float;
>+vec4 res, ref, cmp;
>+out vec4 results[3];
>+vec4 ColorToVec4(uint);
>+float GetLOD(vec3[2]);
>+const uvec3 dims = uvec3(1024,1024,0);
>+
>+
>+float GetLOD(vec3[2] d)
>+{
>+ float lod = 0.f;
>+ vec2 temp;
>+ d[0] *= vec3(dims);
>+ d[1] *= vec3(dims);
>+ temp.x = sqrt(d[0].x*d[0].x+d[0].y*d[0].y+d[0].z*d[0].z);
>+ temp.y = sqrt(d[1].x*d[1].x+d[1].y*d[1].y+d[1].z*d[1].z);
>+ lod = round(log2(max(temp.x, temp.y)));
>+ lod = max(0.f, lod);
>+ lod = min(4.f, lod);
>+ return lod;
>+}
>+
>+vec4 ColorToVec4(uint color)
>+{
>+ if (color == 0u)
>+   return vec4(255, 0, 0, 255);
>+ if (color == 1u)
>+   return vec4(0, 255, 0, 255);
>+ if (color == 2u)
>+   return vec4(0, 0, 255, 255);
>+ if (color == 3u)
>+   return vec4(0, 0, 0, 255);
>+ if (color == 4u)
>+   return vec4(255, 255, 255, 255);
>+ if (color == 5u)
>+   return vec4(255, 255, 0, 255);
>+ if (color == 6u)
>+   return vec4(0, 255, 255, 255);
>+}
>+uniform sampler2D tex;
>+vec4 testFunction(vec4 pos, vec4 relPos)
>+{
>+ vec3[2] d = vec3[2](vec3(0), vec3(0));
>+ for (int dPdx=-20; dPdx<=20; dPdx+=3)
>+ for (int dPdy=-20; dPdy<=20; dPdy+=3)
>+ {
>+   d[0].x = dPdx / 10.f;
>+   d[1].y = dPdy / 9.f;
>+   if (textureLod(tex, pos.xy, GetLOD(d)) !=  textureGrad(tex, pos.xy, d[0].xy, d[1].xy))
>+     return ColorToVec4(0u);
>+   }
>+ return ColorToVec4(1u);
>+}
>+
>+void main()
>+{
>+
>+ cmp = testFunction(gl_FragCoord/100.f,gl_TexCoord[0]);
>+ if (any(greaterThanEqual(res.xyz, vec3(1))))
>+   res = res / vec4(vec3(255), 1);
>+ if (any(greaterThanEqual(ref.xyz, vec3(1))))
>+   ref = ref / vec4(vec3(255), 1);
>+ results[0] = res;
>+ results[1] = ref;
>+ results[2] = cmp / vec4(255);
>+}
>+
>diff --git a/tests/shaders/glsl-tex-grad.vert b/tests/shaders/glsl-tex-grad.vert
>new file mode 100644
>index 0000000..ce609ff
>--- /dev/null
>+++ b/tests/shaders/glsl-tex-grad.vert
>@@ -0,0 +1,10 @@
>+#version 130
>+
>+precision highp float;
>+
>+
>+void main()
>+{
>+	gl_Position = gl_Vertex;
>+	gl_TexCoord[0] = gl_MultiTexCoord0;
>+}
>-- 
>1.7.6
>

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