This test won't actually get run unless its added to tests/all.py You probably also should put a license header in the source file. MIT is the usual license.
On Wednesday, June 11, 2014 11:57:24 AM Iago Toral Quiroga wrote: > This tests correct rendering of polygons using antialised GL_LINE mode for > one face and GL_FILL for the other one. On some Intel hardware at least > this used to require special handling that has caused regressions in the > past. > > The test checks that the GL_FILL face of the polygon renders properly. > --- > tests/bugs/CMakeLists.gl.txt | 1 + > tests/bugs/polygon-line-aa.c | 70 > ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 71 > insertions(+) > create mode 100644 tests/bugs/polygon-line-aa.c > > diff --git a/tests/bugs/CMakeLists.gl.txt b/tests/bugs/CMakeLists.gl.txt > index e24ec6b..fd71c0f 100644 > --- a/tests/bugs/CMakeLists.gl.txt > +++ b/tests/bugs/CMakeLists.gl.txt > @@ -30,5 +30,6 @@ piglit_add_executable (fdo28551 fdo28551.c) > piglit_add_executable (fdo31934 fdo31934.c) > piglit_add_executable (tri-tex-crash tri-tex-crash.c) > piglit_add_executable (vbo-buffer-unmap vbo-buffer-unmap.c) > +piglit_add_executable (polygon-aa polygon-line-aa.c) > > # vim: ft=cmake: > diff --git a/tests/bugs/polygon-line-aa.c b/tests/bugs/polygon-line-aa.c > new file mode 100644 > index 0000000..3aef97c > --- /dev/null > +++ b/tests/bugs/polygon-line-aa.c > @@ -0,0 +1,70 @@ > +/* > + * Test case for a special case of line antialiasing > + * https://bugs.freedesktop.org/show_bug.cgi?id=78679 > + * > + * This test renders a polygon using GL_LINE mode (with antialised lines) > + * for one face of the polygon, and GL_FILL for the other face. For gen < 6 > + * intel hardware this setup requires special handling that if not done + > * correctly produces incorrect rendering of the GL_FILL face. This caused + > * regressions in the past. > + */ > + > +#include "piglit-util-gl-common.h" > + > +PIGLIT_GL_TEST_CONFIG_BEGIN > + > + config.supports_gl_compat_version = 10; > + config.window_width = 100; > + config.window_height = 100; > + config.window_visual = PIGLIT_GL_VISUAL_RGBA; > + > +PIGLIT_GL_TEST_CONFIG_END > + > +void > +piglit_init(int argc, char **argv) > +{ > + /* This enables the case we want to test for */ > + glEnable(GL_LINE_SMOOTH); > + glShadeModel(GL_SMOOTH); > + glHint(GL_LINE_SMOOTH_HINT, GL_NICEST); > + glLineWidth(1.5); > + glEnable(GL_BLEND); > + glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); > + glPolygonMode(GL_BACK, GL_LINE); > + > + glMatrixMode(GL_PROJECTION); > + glLoadIdentity(); > + glOrtho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0); > + > + glClearColor(1, 1, 1, 1); > +} > + > +enum piglit_result > +piglit_display(void) > +{ > + glClear(GL_COLOR_BUFFER_BIT); > + > + glViewport(0, 0, piglit_width, piglit_height); > + > + glMatrixMode(GL_MODELVIEW); > + glLoadIdentity(); > + > + glColor4f(0.0f, 0.0f, 1.0f, 1.0); > + glBegin(GL_QUADS); > + glVertex2f(-1.0f, -1.0f); > + glVertex2f( 1.0f, -1.0f); > + glVertex2f( 1.0f, 1.0f); > + glVertex2f(-1.0f, 1.0f); > + glEnd(); > + > + glFlush(); > + > + /* The test checks that the fill face of the quad is all blue without > + * noise artifacts > + */ > + GLfloat expected[4] = { 0.0, 0.0, 1.0, 1.0 }; > + if (piglit_probe_rect_rgba(0, 0, 100, 100, expected)) > + return PIGLIT_PASS; > + else > + return PIGLIT_FAIL; > +}
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