[Piglit] [PATCH 1/2] Add test to verify the functionality of glBitmap() with multisample FBO
Anuj Phogat
anuj.phogat at gmail.com
Tue Jun 12 12:40:07 PDT 2012
glBitmap() is expected to work exactly the same way on multisample FBO as
it works on single sample FBO. Test assumes that MSAA accuracy test already
passes.
Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>
---
tests/all.tests | 6 +
.../ext_framebuffer_multisample/CMakeLists.gl.txt | 1 +
tests/spec/ext_framebuffer_multisample/bitmap.cpp | 185 ++++++++++++++++++++
3 files changed, 192 insertions(+), 0 deletions(-)
create mode 100644 tests/spec/ext_framebuffer_multisample/bitmap.cpp
diff --git a/tests/all.tests b/tests/all.tests
index 129a923..10c5351 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -1379,6 +1379,12 @@ for num_samples in (2, 4, 8, 16, 32):
test_name)
ext_framebuffer_multisample[test_name] = PlainExecTest(executable)
+for num_samples in (2, 4, 8, 16, 32):
+ test_name = ' '.join(['bitmap', str(num_samples)])
+ executable = 'ext_framebuffer_multisample-{0} -auto'.format(
+ test_name)
+ ext_framebuffer_multisample[test_name] = PlainExecTest(executable)
+
ext_framebuffer_object = Group()
spec['EXT_framebuffer_object'] = ext_framebuffer_object
add_fbo_stencil_tests(ext_framebuffer_object, 'GL_STENCIL_INDEX1')
diff --git a/tests/spec/ext_framebuffer_multisample/CMakeLists.gl.txt b/tests/spec/ext_framebuffer_multisample/CMakeLists.gl.txt
index 1660067..68fed48 100644
--- a/tests/spec/ext_framebuffer_multisample/CMakeLists.gl.txt
+++ b/tests/spec/ext_framebuffer_multisample/CMakeLists.gl.txt
@@ -10,6 +10,7 @@ link_libraries (
)
piglit_add_executable (ext_framebuffer_multisample-accuracy common.cpp accuracy.cpp)
+piglit_add_executable (ext_framebuffer_multisample-bitmap common.cpp bitmap.cpp)
piglit_add_executable (ext_framebuffer_multisample-dlist dlist.c)
piglit_add_executable (ext_framebuffer_multisample-formats common.cpp formats.cpp)
piglit_add_executable (ext_framebuffer_multisample-line-smooth common.cpp line-smooth.cpp)
diff --git a/tests/spec/ext_framebuffer_multisample/bitmap.cpp b/tests/spec/ext_framebuffer_multisample/bitmap.cpp
new file mode 100644
index 0000000..ec52471
--- /dev/null
+++ b/tests/spec/ext_framebuffer_multisample/bitmap.cpp
@@ -0,0 +1,185 @@
+/*
+ * Copyright © 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.
+ */
+
+#include "common.h"
+
+/**
+ * \file bitmap.cpp
+ *
+ * This test case verifies the functionality of glBitmap() with multisample
+ * FBO and assumes that MSAA accuracy test already passes. glBitmap() is
+ * expected to work exactly the same way on multisample FBO as it works on
+ * single sample FBO.
+ *
+ * Test operates by drawing a test pattern in a single sample FBO which
+ * generates a reference image in right half of default framebuffer.
+ *
+ * Draw the same test pattern in multisample buffer and blit it in to a single
+ * sample FBO (resolve_fbo). Then blit the resolve_fbo to left half of window
+ * system framebuffer. This is the test image.
+ *
+ * Compare the two halves of default framebuffer.
+ */
+
+int piglit_width = 512; int piglit_height = 256;
+int piglit_window_mode = GLUT_DOUBLE | GLUT_RGBA | GLUT_ALPHA ;
+const int pattern_width = 256; const int pattern_height = 256;
+
+static Fbo ms_fbo, resolve_fbo;
+static GLint num_samples;
+
+static GLubyte bitmap[] =
+{
+ 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc,
+ 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc,
+ 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc,
+ 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc,
+ 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc,
+ 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc,
+ 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc,
+ 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc,
+ 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc,
+ 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc,
+ 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc,
+ 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc,
+ 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc,
+ 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc,
+ 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc,
+ 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc,
+};
+
+void
+draw_pattern(void)
+{
+ const int w = 32, h = 32;
+
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ glRasterPos2i (0, 0);
+ glColor3f(1.0, 1.0 , 1.0);
+ for (int i = 0; i < pattern_width / w; i++)
+ glBitmap(w, h, 0.0, 0.0, w, h, bitmap);
+
+ glRasterPos2i (0, pattern_height - h);
+ for (int i = 0; i < pattern_width / w; i++)
+ glBitmap(w, h, 0.0, 0.0, w, -h, bitmap);
+}
+
+void
+print_usage_and_exit(char *prog_name)
+{
+ printf("Usage: %s <num_samples>\n", prog_name);
+ piglit_report_result(PIGLIT_FAIL);
+}
+
+bool
+test_multisample_bitmap()
+{
+ bool result = true;
+
+ glBindFramebuffer(GL_DRAW_FRAMEBUFFER, ms_fbo.handle);
+ draw_pattern();
+
+ /* Blit ms_fbo to resolve_fbo to resolve multisample buffer */
+ glBindFramebuffer(GL_READ_FRAMEBUFFER, ms_fbo.handle);
+ glBindFramebuffer(GL_DRAW_FRAMEBUFFER, resolve_fbo.handle);
+ glBlitFramebuffer(0, 0, pattern_width, pattern_height,
+ 0, 0, pattern_width, pattern_height,
+ GL_COLOR_BUFFER_BIT, GL_NEAREST);
+
+ /* Blit resolve_fbo to the left half of window system framebuffer.
+ * This is the test image.
+ */
+ glBindFramebuffer(GL_READ_FRAMEBUFFER, resolve_fbo.handle);
+ glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
+ glBlitFramebuffer(0, 0, pattern_width, pattern_height,
+ 0, 0, pattern_width, pattern_height,
+ GL_COLOR_BUFFER_BIT, GL_NEAREST);
+
+ /* Check that the left and right halves of the screen match */
+ glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
+ result = piglit_probe_rect_halves_equal_rgba(0, 0, piglit_width,
+ piglit_height)
+ && result;
+
+ result = piglit_check_gl_error(GL_NO_ERROR) && result;
+ glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
+ return result;
+}
+
+
+void
+piglit_init(int argc, char **argv)
+{
+ if (argc < 2)
+ print_usage_and_exit(argv[0]);
+ {
+ char *endptr = NULL;
+ num_samples = strtol(argv[1], &endptr, 0);
+ if (endptr != argv[1] + strlen(argv[1]))
+ print_usage_and_exit(argv[0]);
+ }
+
+ piglit_require_gl_version(30);
+ piglit_ortho_projection(pattern_width, pattern_height, GL_TRUE);
+
+ /* Skip the test if num_samples > GL_MAX_SAMPLES or num_samples = 0 */
+ GLint max_samples;
+ glGetIntegerv(GL_MAX_SAMPLES, &max_samples);
+ if (num_samples > max_samples ||
+ num_samples == 0)
+ piglit_report_result(PIGLIT_SKIP);
+
+ ms_fbo.setup(FboConfig(num_samples, pattern_width, pattern_height));
+ resolve_fbo.setup(FboConfig(0, pattern_width, pattern_height));
+}
+
+enum piglit_result
+piglit_display()
+{
+ bool pass = true;
+ glClearColor(0.0, 0.0, 0.0, 1.0);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ /* Draw test pattern in single sample resolve_fbo */
+ glBindFramebuffer(GL_DRAW_FRAMEBUFFER, resolve_fbo.handle);
+ resolve_fbo.set_viewport();
+ draw_pattern();
+
+ /* Blit resolve_fbo to the right half of window system framebuffer. This
+ * is a reference image.
+ */
+ glBindFramebuffer(GL_READ_FRAMEBUFFER, resolve_fbo.handle);
+ glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
+ glBlitFramebuffer(0, 0, pattern_width, pattern_height,
+ pattern_width, 0, 2 * pattern_width, pattern_height,
+ GL_COLOR_BUFFER_BIT, GL_NEAREST);
+
+ /* Test drawing bitmap in multisample FBO */
+ pass = test_multisample_bitmap() && pass;
+
+ if (!piglit_automatic)
+ piglit_present_results();
+
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
--
1.7.7.6
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