[Piglit] [PATCH] general: Add a spot light sanity check
Daniel Scharrer
daniel at constexpr.org
Sat Aug 20 03:20:27 UTC 2016
Signed-off-by: Daniel Scharrer <daniel at constexpr.org>
---
This tests for the bug fixed by the Mesa patch at
https://patchwork.freedesktop.org/patch/106411/
The test passes on amdgpu-pro, llvmpipe (patched and unpatched)
and radeonsi (patched). It fails on unpatched radeonsi.
tests/all.py | 1 +
tests/general/CMakeLists.gl.txt | 1 +
tests/general/spot-light.c | 131 ++++++++++++++++++++++++++++++++++++++++
3 files changed, 133 insertions(+)
create mode 100644 tests/general/spot-light.c
diff --git a/tests/all.py b/tests/all.py
index e110f59..8b94c48 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -876,6 +876,7 @@ with profile.group_manager(
run_concurrent=False)
g(['select', 'scissor'], 'GL_SELECT - scissor-test enabled',
run_concurrent=False)
+ g(['spot-light'], run_concurrent=False)
g(['stencil-drawpixels'], run_concurrent=False)
g(['texgen'], run_concurrent=False)
g(['two-sided-lighting'], run_concurrent=False)
diff --git a/tests/general/CMakeLists.gl.txt b/tests/general/CMakeLists.gl.txt
index 3a46fb0..6adacee 100644
--- a/tests/general/CMakeLists.gl.txt
+++ b/tests/general/CMakeLists.gl.txt
@@ -108,6 +108,7 @@ piglit_add_executable (scissor-offscreen scissor-offscreen.c)
piglit_add_executable (scissor-polygon scissor-polygon.c)
piglit_add_executable (scissor-stencil-clear scissor-stencil-clear.c)
piglit_add_executable (select select.c)
+piglit_add_executable (spot-light spot-light.c)
piglit_add_executable (stencil-drawpixels stencil-drawpixels.c)
piglit_add_executable (stencil-twoside stencil-twoside.c)
piglit_add_executable (stencil-wrap stencil-wrap.c)
diff --git a/tests/general/spot-light.c b/tests/general/spot-light.c
new file mode 100644
index 0000000..a800aca
--- /dev/null
+++ b/tests/general/spot-light.c
@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) 2016 Daniel Scharrer <daniel at constexpr.org>
+ *
+ * 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 spot-light.c
+ *
+ * This is a simple sanity test for fixed function spot lights in OpenGL.
+ *
+ * It tests that vertices directly in front of the spot light are lit with
+ * full intensity and that lighting of vertices beyond the spot cutoff,
+ * and especially of those behind the spot light, is not affected by the
+ * spot light. This is done for three spot lights with different exponents.
+ */
+
+#include "piglit-util-gl.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+ config.supports_gl_compat_version = 10;
+
+ config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+static GLfloat pos[4] = {5.0, 5.0, 0.0, 1.0}; /* center */
+static GLfloat light0_dir[3] = {-1.0, 0.0, 0.0}; /* left */
+static GLfloat light1_dir[3] = {0.0, 1.0, 0.0}; /* up */
+static GLfloat light2_dir[3] = {1.0, 0.0, 0.0}; /* right */
+static GLfloat light0_ambient[4] = {1.0, 0.0, 0.0, 1.0};
+static GLfloat light1_ambient[4] = {0.0, 1.0, 0.0, 1.0};
+static GLfloat light2_ambient[4] = {0.0, 0.0, 1.0, 1.0};
+static GLfloat global_ambient[4] = {0.2, 0.2, 0.2, 1.0};
+
+enum piglit_result
+piglit_display(void)
+{
+ GLboolean pass = GL_TRUE;
+ GLfloat expected_left[4] = {1.0, 0.2, 0.2, 1.0};
+ GLfloat expected_bottom[4] = {0.2, 0.2, 0.2, 1.0};
+ GLfloat expected_right[4] = {0.2, 0.2, 1.0, 1.0};
+ GLfloat expected_top[4] = {0.2, 1.0, 0.2, 1.0};
+ GLfloat expected_bottom_left[4] = {0.2, 0.2, 0.2, 1.0};
+ GLfloat expected_top_left[4] = {0.2, 1.0, 0.2, 1.0};
+ GLfloat expected_bottom_right[4] = {0.2, 0.2, 0.2, 1.0};
+ GLfloat expected_top_right[4] = {0.2, 1.0, 0.2, 1.0};
+
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ glPointSize(1);
+ glBegin(GL_POINTS);
+ for(int x = 0; x < 11; x++)
+ for(int y = 0; y < 11; y++)
+ {
+ glVertex2f(x, y);
+ }
+ glEnd();
+
+ pass = pass && piglit_probe_pixel_rgba( 0, 5, expected_left);
+ pass = pass && piglit_probe_pixel_rgba( 5, 0, expected_bottom);
+ pass = pass && piglit_probe_pixel_rgba(10, 5, expected_right);
+ pass = pass && piglit_probe_pixel_rgba( 5, 10, expected_top);
+ pass = pass && piglit_probe_pixel_rgba( 0, 0, expected_bottom_left);
+ pass = pass && piglit_probe_pixel_rgba( 0, 10, expected_top_left);
+ pass = pass && piglit_probe_pixel_rgba(10, 0, expected_bottom_right);
+ pass = pass && piglit_probe_pixel_rgba(10, 10, expected_top_right);
+
+ piglit_present_results();
+
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+
+void
+piglit_init(int argc, char **argv)
+{
+ GLfloat zero[4] = {0.0, 0.0, 0.0, 1.0};
+ GLfloat one[4] = {1.0, 1.0, 1.0, 1.0};
+
+ glClearColor(0.0, 0.0, 0.0, 1.0);
+
+ glEnable(GL_LIGHT0);
+ glLightf(GL_LIGHT0, GL_SPOT_CUTOFF, 44.0);
+ glLightf(GL_LIGHT0, GL_SPOT_EXPONENT, 1.0);
+ glLightfv(GL_LIGHT0, GL_POSITION, pos);
+ glLightfv(GL_LIGHT0, GL_SPOT_DIRECTION, light0_dir);
+ glLightfv(GL_LIGHT0, GL_AMBIENT, light0_ambient);
+
+ glEnable(GL_LIGHT1);
+ glLightf(GL_LIGHT1, GL_SPOT_CUTOFF, 60.0);
+ glLightf(GL_LIGHT1, GL_SPOT_EXPONENT, 0.0);
+ glLightfv(GL_LIGHT1, GL_POSITION, pos);
+ glLightfv(GL_LIGHT1, GL_SPOT_DIRECTION, light1_dir);
+ glLightfv(GL_LIGHT1, GL_AMBIENT, light1_ambient);
+
+ glEnable(GL_LIGHT2);
+ glLightf(GL_LIGHT2, GL_SPOT_CUTOFF, 44.0);
+ glLightf(GL_LIGHT2, GL_SPOT_EXPONENT, 5.0);
+ glLightfv(GL_LIGHT2, GL_POSITION, pos);
+ glLightfv(GL_LIGHT2, GL_SPOT_DIRECTION, light2_dir);
+ glLightfv(GL_LIGHT2, GL_AMBIENT, light2_ambient);
+
+ glLightModelfv(GL_LIGHT_MODEL_AMBIENT, global_ambient);
+ glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, 0);
+
+ /* We are not interested in testing diffuse lighting, enable only the ambient term. */
+ glMaterialfv(GL_FRONT, GL_DIFFUSE, zero);
+ glMaterialfv(GL_FRONT, GL_AMBIENT, one);
+
+ glEnable(GL_LIGHTING);
+
+ piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
+}
--
2.9.2
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