diff options
Diffstat (limited to 'components/gui/src/image_png.c')
| -rw-r--r-- | components/gui/src/image_png.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/components/gui/src/image_png.c b/components/gui/src/image_png.c index 1af8b92b36..cb207212f4 100644 --- a/components/gui/src/image_png.c +++ b/components/gui/src/image_png.c @@ -550,7 +550,7 @@ static void rtgui_image_png_blit(struct rtgui_image *image, struct rtgui_dc *dc, { int x, y; int w, h; - struct rtgui_blit_info info; + struct rtgui_blit_info info = {0}; struct rtgui_graphic_driver *hw_driver = rtgui_graphic_driver_get_default(); RT_ASSERT(image != RT_NULL && dc != RT_NULL && rect != RT_NULL); @@ -653,10 +653,10 @@ static void rtgui_image_png_blit(struct rtgui_image *image, struct rtgui_dc *dc, { int dst_x, dst_y; - info.a = 0; + info.a = 255; /* initialize source blit information */ - info.src_fmt = RTGRAPHIC_PIXEL_FORMAT_ARGB888;; + info.src_fmt = RTGRAPHIC_PIXEL_FORMAT_ARGB888; info.src_h = h; info.src_w = w; info.src_pitch = image->w * rtgui_color_get_bpp(RTGRAPHIC_PIXEL_FORMAT_ARGB888); @@ -674,6 +674,9 @@ static void rtgui_image_png_blit(struct rtgui_image *image, struct rtgui_dc *dc, struct rtgui_dc_buffer *buffer; buffer = (struct rtgui_dc_buffer*)dc; + if (buffer->pixel_alpha == 0) + info.a = 0; + info.dst = rtgui_dc_buffer_get_pixel(RTGUI_DC(buffer)) + dst_y * buffer->pitch + dst_x * rtgui_color_get_bpp(buffer->pixel_format); info.dst_h = h; |