diff options
Diffstat (limited to 'lib/drmtest.c')
| -rw-r--r-- | lib/drmtest.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/lib/drmtest.c b/lib/drmtest.c index 7f89fd1f..d9749d7e 100644 --- a/lib/drmtest.c +++ b/lib/drmtest.c @@ -1475,6 +1475,34 @@ void kmstest_paint_test_pattern(cairo_t *cr, int width, int height) assert(!cairo_status(cr)); } +void kmstest_paint_image(cairo_t *cr, const char *filename, + int dst_x, int dst_y, int dst_width, int dst_height) +{ + cairo_surface_t *image; + int img_width, img_height; + double scale_x, scale_y; + + image = cairo_image_surface_create_from_png(filename); + assert(cairo_surface_status(image) == CAIRO_STATUS_SUCCESS); + + img_width = cairo_image_surface_get_width(image); + img_height = cairo_image_surface_get_height(image); + + scale_x = (double)dst_width / img_width; + scale_y = (double)dst_height / img_height; + + cairo_save(cr); + + cairo_translate(cr, dst_x, dst_y); + cairo_scale(cr, scale_x, scale_y); + cairo_set_source_surface(cr, image, 0, 0); + cairo_paint(cr); + + cairo_surface_destroy(image); + + cairo_restore(cr); +} + #define DF(did, cid, _bpp, _depth) \ { DRM_FORMAT_##did, CAIRO_FORMAT_##cid, # did, _bpp, _depth } static struct format_desc_struct { |