[Piglit] [PATCH] Add a test for GL_EXT_frag_depth
Anuj Phogat
anuj.phogat at gmail.com
Fri Feb 10 20:38:30 UTC 2017
Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>
---
tests/all.py | 5 ++
tests/spec/CMakeLists.txt | 1 +
tests/spec/ext_frag_depth/CMakeLists.gles2.txt | 7 ++
tests/spec/ext_frag_depth/CMakeLists.txt | 1 +
tests/spec/ext_frag_depth/fragdepth.c | 106 +++++++++++++++++++++++++
5 files changed, 120 insertions(+)
create mode 100644 tests/spec/ext_frag_depth/CMakeLists.gles2.txt
create mode 100644 tests/spec/ext_frag_depth/CMakeLists.txt
create mode 100644 tests/spec/ext_frag_depth/fragdepth.c
diff --git a/tests/all.py b/tests/all.py
index a08c0c2..0fb7751 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -3170,6 +3170,11 @@ with profile.test_list.group_manager(
with profile.test_list.group_manager(
PiglitGLTest,
+ grouptools.join('spec', 'ext_frag_depth')) as g:
+ g(['fragdepth_gles2'])
+
+with profile.test_list.group_manager(
+ PiglitGLTest,
grouptools.join('spec', 'ext_texture_array')) as g:
g(['fbo-generatemipmap-array'])
g(['fbo-generatemipmap-array', 'RGB9_E5'])
diff --git a/tests/spec/CMakeLists.txt b/tests/spec/CMakeLists.txt
index 548515d..5d550fc 100644
--- a/tests/spec/CMakeLists.txt
+++ b/tests/spec/CMakeLists.txt
@@ -77,6 +77,7 @@ add_subdirectory (arb_transform_feedback3)
add_subdirectory (arb_viewport_array)
add_subdirectory (ati_envmap_bumpmap)
add_subdirectory (ext_depth_bounds_test)
+add_subdirectory (ext_frag_depth)
add_subdirectory (ext_fog_coord)
add_subdirectory (ext_framebuffer_multisample)
add_subdirectory (ext_framebuffer_multisample_blit_scaled)
diff --git a/tests/spec/ext_frag_depth/CMakeLists.gles2.txt b/tests/spec/ext_frag_depth/CMakeLists.gles2.txt
new file mode 100644
index 0000000..f7684f3
--- /dev/null
+++ b/tests/spec/ext_frag_depth/CMakeLists.gles2.txt
@@ -0,0 +1,7 @@
+link_libraries(
+ piglitutil_${piglit_target_api}
+ )
+
+piglit_add_executable(fragdepth_gles2 fragdepth.c)
+
+# vim: ft=cmake:
diff --git a/tests/spec/ext_frag_depth/CMakeLists.txt b/tests/spec/ext_frag_depth/CMakeLists.txt
new file mode 100644
index 0000000..144a306
--- /dev/null
+++ b/tests/spec/ext_frag_depth/CMakeLists.txt
@@ -0,0 +1 @@
+piglit_include_target_api()
diff --git a/tests/spec/ext_frag_depth/fragdepth.c b/tests/spec/ext_frag_depth/fragdepth.c
new file mode 100644
index 0000000..e9448c0
--- /dev/null
+++ b/tests/spec/ext_frag_depth/fragdepth.c
@@ -0,0 +1,106 @@
+/*
+ * Copyright 2017 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.
+ */
+
+/**
+ * Test GL_EXT_frag_depth support in GLSL ES 1.0
+ * We draw overlapping red and green quads. The red quad is at Z=0
+ * while the green quad's fragment depths vary from left to right.
+ * Should see intersecting quads.
+ */
+
+
+#include "piglit-util-gl.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+ config.supports_gl_es_version = 20;
+ config.window_visual = (PIGLIT_GL_VISUAL_RGBA |
+ PIGLIT_GL_VISUAL_DEPTH |
+ PIGLIT_GL_VISUAL_DOUBLE);
+PIGLIT_GL_TEST_CONFIG_END
+
+
+static const char *vs_source =
+ "#version 100 \n"
+ "attribute vec4 piglit_vertex;\n"
+ "varying float z; \n"
+ "void main() { \n"
+ " gl_Position = piglit_vertex; \n"
+ " // Convert z from [-1, 1] to [0, 1] \n"
+ " z = piglit_vertex.x * 0.5 + 0.5; \n"
+ "}\n";
+static const char *fs_source =
+ "#version 100 \n"
+ "#extension GL_EXT_frag_depth : enable \n"
+ "precision mediump float; \n"
+ "varying float z; \n"
+ "uniform vec4 color;\n"
+ "void main() { \n"
+ " if (color.g == 1.0) \n"
+ " gl_FragDepthEXT = z; \n"
+ " else \n"
+ " gl_FragDepthEXT = 0.5; \n"
+ " gl_FragColor = color; \n"
+ "}\n";
+
+static GLuint program;
+
+
+enum piglit_result
+piglit_display(void)
+{
+ static const float red[4] = {1.0, 0.0, 0.0, 1.0};
+ static const float green[4] = {0.0, 1.0, 0.0, 1.0};
+ int x = piglit_width / 2;
+ int y = piglit_height / 2;
+ bool pass = true;
+ int color_loc;
+
+ glViewport(0, 0, piglit_width, piglit_height);
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ glUseProgram(program);
+ color_loc = glGetUniformLocation(program, "color");
+
+ glUniform4fv(color_loc, 1, red);
+ /* Draw a red rect at z = 0 (will be 0.5 in depth range [0,1]) */
+ piglit_draw_rect(-0.5, -0.5, 1.0, 1.0);
+
+ /* Draw green rect with variable z = piglit_vertex.x * 0.5 + 0.5 */
+ glUniform4fv(color_loc, 1, green);
+ piglit_draw_rect(-0.75, -0.25, 1.5, 0.5);
+
+ pass = piglit_probe_pixel_rgba(x-10, y, green) && pass;
+ pass = piglit_probe_pixel_rgba(x+10, y, red) && pass;
+
+ piglit_present_results();
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+
+void
+piglit_init(int argc, char **argv)
+{
+ piglit_require_extension("GL_EXT_frag_depth");
+ program = piglit_build_simple_program(vs_source, fs_source);
+ glClearColor(0.25f, 0.25f, 0.25f, 1.0f);
+ glEnable(GL_DEPTH_TEST);
+}
--
2.9.3
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