[Piglit] [PATCH v3] Add GL_INTEL_conservative_rasterization tests
Lionel Landwerlin
lionel.g.landwerlin at intel.com
Thu Dec 8 10:55:49 UTC 2016
This extension is a subset of GL_NV_conservative_raster, applying only
to polygons.
v2: Drop wrongly added files from Plamena's work (Lionel)
v3: Enable tests on GLES (Lionel)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin at intel.com>
---
tests/all.py | 12 ++
tests/spec/CMakeLists.txt | 1 +
.../CMakeLists.gl.txt | 16 ++
.../CMakeLists.txt | 1 +
.../depthcoverage.c | 75 +++++++++
.../innercoverage.c | 173 +++++++++++++++++++++
.../intel_conservative_rasterization/invalid.c | 114 ++++++++++++++
tests/spec/intel_conservative_rasterization/tri.c | 135 ++++++++++++++++
8 files changed, 527 insertions(+)
create mode 100644 tests/spec/intel_conservative_rasterization/CMakeLists.gl.txt
create mode 100644 tests/spec/intel_conservative_rasterization/CMakeLists.txt
create mode 100644 tests/spec/intel_conservative_rasterization/depthcoverage.c
create mode 100644 tests/spec/intel_conservative_rasterization/innercoverage.c
create mode 100644 tests/spec/intel_conservative_rasterization/invalid.c
create mode 100644 tests/spec/intel_conservative_rasterization/tri.c
diff --git a/tests/all.py b/tests/all.py
index 03cf0c8..852ceae 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -4898,5 +4898,17 @@ with profile.test_list.group_manager(
g(['arb_compute_variable_group_size-local-size'], 'local-size')
g(['arb_compute_variable_group_size-minmax'], 'minmax')
+# Group INTEL_conservative_rasterization
+with profile.test_list.group_manager(
+ PiglitGLTest,
+ grouptools.join('spec', 'INTEL_conservative_rasterization')) as g:
+ g(['intel_conservative_rasterization-depthcoverage'])
+ g(['intel_conservative_rasterization-innercoverage'])
+ g(['intel_conservative_rasterization-invalid'])
+ g(['intel_conservative_rasterization-tri'])
+ g(['intel_conservative_rasterization-depthcoverage_gles3'])
+ g(['intel_conservative_rasterization-innercoverage_gles3'])
+ g(['intel_conservative_rasterization-tri_gles3'])
+
if platform.system() is 'Windows':
profile.filters.append(lambda p, _: not p.startswith('glx'))
diff --git a/tests/spec/CMakeLists.txt b/tests/spec/CMakeLists.txt
index 4ac1a53..548515d 100644
--- a/tests/spec/CMakeLists.txt
+++ b/tests/spec/CMakeLists.txt
@@ -153,3 +153,4 @@ add_subdirectory (arb_query_buffer_object)
add_subdirectory (ext_window_rectangles)
add_subdirectory (arb_shader_texture_image_samples)
add_subdirectory (arb_texture_barrier)
+add_subdirectory (intel_conservative_rasterization)
diff --git a/tests/spec/intel_conservative_rasterization/CMakeLists.gl.txt b/tests/spec/intel_conservative_rasterization/CMakeLists.gl.txt
new file mode 100644
index 0000000..6e0ab44
--- /dev/null
+++ b/tests/spec/intel_conservative_rasterization/CMakeLists.gl.txt
@@ -0,0 +1,16 @@
+include_directories(
+ ${GLEXT_INCLUDE_DIR}
+ ${OPENGL_INCLUDE_PATH}
+)
+
+link_libraries (
+ piglitutil_${piglit_target_api}
+ ${OPENGL_gl_LIBRARY}
+)
+
+piglit_add_executable (intel_conservative_rasterization-depthcoverage depthcoverage.c)
+piglit_add_executable (intel_conservative_rasterization-innercoverage innercoverage.c)
+piglit_add_executable (intel_conservative_rasterization-invalid invalid.c)
+piglit_add_executable (intel_conservative_rasterization-tri tri.c)
+
+# vim: ft=cmake:
diff --git a/tests/spec/intel_conservative_rasterization/CMakeLists.txt b/tests/spec/intel_conservative_rasterization/CMakeLists.txt
new file mode 100644
index 0000000..144a306
--- /dev/null
+++ b/tests/spec/intel_conservative_rasterization/CMakeLists.txt
@@ -0,0 +1 @@
+piglit_include_target_api()
diff --git a/tests/spec/intel_conservative_rasterization/depthcoverage.c b/tests/spec/intel_conservative_rasterization/depthcoverage.c
new file mode 100644
index 0000000..0d8eb24
--- /dev/null
+++ b/tests/spec/intel_conservative_rasterization/depthcoverage.c
@@ -0,0 +1,75 @@
+/*
+ * Copyright © 2016 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 depthcoverage.c
+ *
+ * Verifies that post_depth_coverage & inner_coverage layout
+ * qualifiers are mutually exclusives.
+ */
+
+#include "piglit-util-gl.h"
+#include "piglit-shader.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+#if defined(PIGLIT_USE_OPENGL)
+ config.supports_gl_core_version = 42;
+#elif defined(PIGLIT_USE_OPENGL_ES3)
+ config.supports_gl_es_version = 31;
+#endif
+
+PIGLIT_GL_TEST_CONFIG_END
+
+enum piglit_result
+piglit_display(void)
+{
+ return PIGLIT_FAIL;
+}
+
+void piglit_init(int argc, char **argv)
+{
+ piglit_require_extension("GL_INTEL_conservative_rasterization");
+ piglit_require_extension("GL_ARB_post_depth_coverage");
+
+ GLuint invalid_prog = piglit_compile_shader_text_nothrow(
+ GL_FRAGMENT_SHADER,
+#if defined(PIGLIT_USE_OPENGL)
+ "#version 430\n"
+#elif defined(PIGLIT_USE_OPENGL_ES3)
+ "#version 310 es\n"
+#endif
+ "#extension GL_ARB_post_depth_coverage: enable\n"
+ "#extension GL_INTEL_conservative_rasterization: enable\n"
+ "layout(inner_coverage) in;\n"
+ "layout(post_depth_coverage) in;\n"
+ "out vec4 color;\n"
+ "void main()\n"
+ "{\n"
+ " color = vec4(1.0, 0.0, 0.0, 1.0);\n"
+ "}\n");
+ if (invalid_prog)
+ piglit_report_result(PIGLIT_FAIL);
+
+ piglit_report_result(PIGLIT_PASS);
+}
diff --git a/tests/spec/intel_conservative_rasterization/innercoverage.c b/tests/spec/intel_conservative_rasterization/innercoverage.c
new file mode 100644
index 0000000..8524fb9
--- /dev/null
+++ b/tests/spec/intel_conservative_rasterization/innercoverage.c
@@ -0,0 +1,173 @@
+/*
+ * Copyright © 2016 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 innercoverage.c
+ *
+ * Verifies that the inner_coverage layout qualifier works when
+ * GL_INTEL_conservative_rasterization is enabled.
+ */
+
+#include "piglit-util-gl.h"
+#include "piglit-matrix.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+#if defined(PIGLIT_USE_OPENGL)
+ config.supports_gl_core_version = 42;
+#elif defined(PIGLIT_USE_OPENGL_ES3)
+ config.supports_gl_es_version = 31;
+#endif
+
+ config.window_width = 400;
+ config.window_height = 400;
+ config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+enum piglit_result
+piglit_display(void)
+{
+ enum piglit_result result = PIGLIT_PASS;
+
+ /* The following fragment programs render the opaque red color
+ * only when dispatched with a gl_SampleMaskIn empty. It
+ * should therefore expose the effect of the inner_coverage
+ * (i.e. no color with this qualifier and a triangle outline
+ * without it). */
+ GLuint inner_prog = piglit_build_simple_program(
+#if defined(PIGLIT_USE_OPENGL)
+ "#version 420\n"
+#elif defined(PIGLIT_USE_OPENGL_ES3)
+ "#version 310 es\n"
+#endif
+ "in vec4 piglit_vertex;\n"
+ "void main()\n"
+ "{\n"
+ " gl_Position = piglit_vertex;\n"
+ "}\n",
+#if defined(PIGLIT_USE_OPENGL)
+ "#version 420\n"
+ "#extension GL_INTEL_conservative_rasterization: enable\n"
+#elif defined(PIGLIT_USE_OPENGL_ES3)
+ "#version 310 es\n"
+ "#extension GL_OES_sample_variables: enable\n"
+ "#extension GL_INTEL_conservative_rasterization: enable\n"
+ "precision highp float;\n"
+#endif
+ "layout(inner_coverage) in;\n"
+ "out vec4 color;\n"
+ "void main()\n"
+ "{\n"
+ " float one = 1.0 - float(gl_SampleMaskIn[0]);\n"
+ " color = vec4(one, 0.0, 0.0, one);\n"
+ "}\n");
+ if (!inner_prog)
+ piglit_report_result(PIGLIT_FAIL);
+
+ GLuint conservative_prog = piglit_build_simple_program(
+#if defined(PIGLIT_USE_OPENGL)
+ "#version 420\n"
+#elif defined(PIGLIT_USE_OPENGL_ES3)
+ "#version 310 es\n"
+#endif
+ "in vec4 piglit_vertex;\n"
+ "void main()\n"
+ "{\n"
+ " gl_Position = piglit_vertex;\n"
+ "}\n",
+#if defined(PIGLIT_USE_OPENGL)
+ "#version 420\n"
+ "#extension GL_INTEL_conservative_rasterization: enable\n"
+#elif defined(PIGLIT_USE_OPENGL_ES3)
+ "#version 310 es\n"
+ "#extension GL_OES_sample_variables: enable\n"
+ "#extension GL_INTEL_conservative_rasterization: enable\n"
+ "precision highp float;\n"
+#endif
+ "out vec4 color;\n"
+ "void main()\n"
+ "{\n"
+ " float one = 1.0 - float(gl_SampleMaskIn[0]);\n"
+ " color = vec4(one, 0.0, 0.0, one);\n"
+ "}\n");
+ if (!conservative_prog)
+ piglit_report_result(PIGLIT_FAIL);
+
+ glBindFramebuffer(GL_DRAW_FRAMEBUFFER, piglit_winsys_fbo);
+ glViewport(0, 0, piglit_width, piglit_height);
+
+ glClearColor(0.0, 0.0, 0.0, 0.0);
+
+ GLuint vao;
+ glGenVertexArrays(1, &vao);
+ glBindVertexArray(vao);
+
+ GLuint vbo;
+ float delta = 1.01 / piglit_width;
+ float vertices[3][2] = {
+ { -0.5, -1 + delta, },
+ { 0, 0.8, },
+ { 0.5, -1 + delta, },
+ };
+ glGenBuffers(1, &vbo);
+ glBindBuffer(GL_ARRAY_BUFFER, vbo);
+ glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
+ glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(GLfloat), NULL);
+ glEnableVertexAttribArray(0);
+
+ glEnable(GL_CONSERVATIVE_RASTERIZATION_INTEL);
+
+ glUseProgram(conservative_prog);
+ glClear(GL_COLOR_BUFFER_BIT);
+ glDrawArrays(GL_TRIANGLES, 0, 3);
+
+ if(!piglit_check_gl_error(GL_NO_ERROR))
+ return PIGLIT_FAIL;
+
+ piglit_present_results();
+
+ const float conservative_expected[] = { 0.0, 0.0, 0.0, 0.0 };
+ if (!piglit_probe_pixel_rgba(piglit_width / 2, 0, conservative_expected))
+ result = PIGLIT_FAIL;
+
+ glUseProgram(inner_prog);
+ glClear(GL_COLOR_BUFFER_BIT);
+ glDrawArrays(GL_TRIANGLES, 0, 3);
+
+ if(!piglit_check_gl_error(GL_NO_ERROR))
+ result = PIGLIT_FAIL;
+
+ piglit_present_results();
+
+ const float inner_expected[] = { 1.0, 0.0, 0.0, 1.0 };
+ if (!piglit_probe_pixel_rgba(piglit_width / 2, 0, inner_expected))
+ result = PIGLIT_FAIL;
+
+ return result;
+}
+
+void piglit_init(int argc, char **argv)
+{
+ piglit_require_extension("GL_INTEL_conservative_rasterization");
+}
diff --git a/tests/spec/intel_conservative_rasterization/invalid.c b/tests/spec/intel_conservative_rasterization/invalid.c
new file mode 100644
index 0000000..1e71816
--- /dev/null
+++ b/tests/spec/intel_conservative_rasterization/invalid.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright © 2016 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 invalid.c
+ *
+ * Verifies that with GL_INTEL_conservative_rasterization enabled, we
+ * get specified errors when using invalid modes for that extension.
+ */
+
+#include "piglit-util-gl.h"
+#include "piglit-matrix.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+#if defined(PIGLIT_USE_OPENGL)
+ config.supports_gl_core_version = 42;
+#endif
+
+PIGLIT_GL_TEST_CONFIG_END
+
+enum piglit_result
+piglit_display(void)
+{
+ return PIGLIT_FAIL;
+}
+
+void piglit_init(int argc, char **argv)
+{
+ piglit_require_extension("GL_INTEL_conservative_rasterization");
+
+ GLuint prog = piglit_build_simple_program(
+#if defined(PIGLIT_USE_OPENGL)
+ "#version 330\n"
+#endif
+ "in vec4 piglit_vertex;\n"
+ "void main()\n"
+ "{\n"
+ " gl_Position = piglit_vertex;\n"
+ "}\n",
+#if defined(PIGLIT_USE_OPENGL)
+ "#version 330\n"
+ "out vec4 color;\n"
+#endif
+ "void main()\n"
+ "{\n"
+ " color = vec4(1.0, 0.0, 0.0, 1.0);\n"
+ "}\n");
+ if (!prog)
+ piglit_report_result(PIGLIT_FAIL);
+
+ glBindFramebuffer(GL_DRAW_FRAMEBUFFER, piglit_winsys_fbo);
+ glUseProgram(prog);
+
+ GLuint vao;
+ glGenVertexArrays(1, &vao);
+ glBindVertexArray(vao);
+
+ GLuint vbo;
+ float vertices[3][2] = {
+ { -0.5, -1, },
+ { 0, 0.8, },
+ { 0.5, -1, },
+ };
+ glGenBuffers(1, &vbo);
+ glBindBuffer(GL_ARRAY_BUFFER, vbo);
+ glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
+ glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(GLfloat), NULL);
+ glEnableVertexAttribArray(0);
+
+ glEnable(GL_CONSERVATIVE_RASTERIZATION_INTEL);
+ glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ glDrawArrays(GL_POINTS, 0, 3);
+ if (!piglit_check_gl_error(GL_INVALID_OPERATION))
+ piglit_report_result(PIGLIT_FAIL);
+
+ glDrawArrays(GL_LINES, 0, 3);
+ if (!piglit_check_gl_error(GL_INVALID_OPERATION))
+ piglit_report_result(PIGLIT_FAIL);
+
+ glPolygonMode(GL_FRONT_AND_BACK, GL_POINT);
+ glDrawArrays(GL_LINES, 0, 3);
+ if (!piglit_check_gl_error(GL_INVALID_OPERATION))
+ piglit_report_result(PIGLIT_FAIL);
+
+ glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+ glDrawArrays(GL_LINES, 0, 3);
+ if (!piglit_check_gl_error(GL_INVALID_OPERATION))
+ piglit_report_result(PIGLIT_FAIL);
+
+ piglit_report_result(PIGLIT_PASS);
+}
diff --git a/tests/spec/intel_conservative_rasterization/tri.c b/tests/spec/intel_conservative_rasterization/tri.c
new file mode 100644
index 0000000..5662445
--- /dev/null
+++ b/tests/spec/intel_conservative_rasterization/tri.c
@@ -0,0 +1,135 @@
+/*
+ * Copyright © 2016 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 tri.c
+ *
+ * Verifies that with GL_INTEL_conservative_rasterization enabled,
+ * partially covered pixels are rasterized.
+ */
+
+#include "piglit-util-gl.h"
+#include "piglit-matrix.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+#if defined(PIGLIT_USE_OPENGL)
+ config.supports_gl_core_version = 42;
+#elif defined(PIGLIT_USE_OPENGL_ES3)
+ config.supports_gl_es_version = 31;
+#endif
+
+ config.window_width = 400;
+ config.window_height = 400;
+ config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+enum piglit_result
+piglit_display(void)
+{
+ float delta = 1.01 / piglit_width;
+ GLuint prog;
+ enum piglit_result result = PIGLIT_PASS;
+
+ prog = piglit_build_simple_program(
+#if defined(PIGLIT_USE_OPENGL)
+ "#version 330\n"
+#elif defined(PIGLIT_USE_OPENGL_ES3)
+ "#version 300 es\n"
+#endif
+ "in vec4 piglit_vertex;\n"
+ "void main()\n"
+ "{\n"
+ " gl_Position = piglit_vertex;\n"
+ "}\n",
+#if defined(PIGLIT_USE_OPENGL)
+ "#version 330\n"
+ "out vec4 color;\n"
+#elif defined(PIGLIT_USE_OPENGL_ES3)
+ "#version 300 es\n"
+ "out highp vec4 color;\n"
+#endif
+ "void main()\n"
+ "{\n"
+ " color = vec4(1.0, 0.0, 0.0, 1.0);\n"
+ "}\n");
+ if (!prog)
+ piglit_report_result(PIGLIT_FAIL);
+
+ glBindFramebuffer(GL_DRAW_FRAMEBUFFER, piglit_winsys_fbo);
+ glViewport(0, 0, piglit_width, piglit_height);
+
+ glClearColor(0.0, 0.0, 0.0, 0.0);
+
+ glUseProgram(prog);
+
+ GLuint vao;
+ glGenVertexArrays(1, &vao);
+ glBindVertexArray(vao);
+
+ GLuint vbo;
+ float vertices[3][2] = {
+ { -0.5, -1 + delta, },
+ { 0, 0.8, },
+ { 0.5, -1 + delta, },
+ };
+ glGenBuffers(1, &vbo);
+ glBindBuffer(GL_ARRAY_BUFFER, vbo);
+ glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
+ glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(GLfloat), NULL);
+ glEnableVertexAttribArray(0);
+
+ glEnable(GL_CONSERVATIVE_RASTERIZATION_INTEL);
+ glClear(GL_COLOR_BUFFER_BIT);
+ glDrawArrays(GL_TRIANGLES, 0, 3);
+
+ if(!piglit_check_gl_error(GL_NO_ERROR))
+ return PIGLIT_FAIL;
+
+ piglit_present_results();
+
+ const float conservative_expected[] = { 1.0, 0.0, 0.0, 1.0 };
+ if (!piglit_probe_pixel_rgba(piglit_width / 2, 0, conservative_expected))
+ result = PIGLIT_FAIL;
+
+ glDisable(GL_CONSERVATIVE_RASTERIZATION_INTEL);
+ glClear(GL_COLOR_BUFFER_BIT);
+ glDrawArrays(GL_TRIANGLES, 0, 3);
+
+ if(!piglit_check_gl_error(GL_NO_ERROR))
+ return PIGLIT_FAIL;
+
+ piglit_present_results();
+
+ const float expected[] = { 0.0, 0.0, 0.0, 0.0 };
+ if (!piglit_probe_pixel_rgba(piglit_width / 2, 0, expected))
+ result = PIGLIT_FAIL;
+
+ return result;
+}
+
+void piglit_init(int argc, char **argv)
+{
+ piglit_require_extension("GL_INTEL_conservative_rasterization");
+}
--
2.10.2
More information about the Piglit
mailing list