graphic_utils: pass image so we can draw only the visible part of the image
This is needed if the image is bigger than the screen. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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@ -7,7 +7,10 @@
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#ifndef __GRAPHIC_UTILS_H__
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#define __GRAPHIC_UTILS_H__
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void rgba_blend(struct fb_info *info, void *image, void* dest, int height,
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#include <fb.h>
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#include <gui/image.h>
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void rgba_blend(struct fb_info *info, struct image *img, void* dest, int height,
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int width, int startx, int starty, bool is_rgba);
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void set_pixel(struct fb_info *info, void *adr, u32 px);
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void set_rgb_pixel(struct fb_info *info, void *adr, u8 r, u8 g, u8 b);
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@ -157,13 +157,14 @@ void set_rgba_pixel(struct fb_info *info, void *adr, u8 r, u8 g, u8 b, u8 a)
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set_pixel(info, adr, px);
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}
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void rgba_blend(struct fb_info *info, void *image, void* buf, int height,
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void rgba_blend(struct fb_info *info, struct image *img, void* buf, int height,
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int width, int startx, int starty, bool is_rgba)
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{
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unsigned char *adr;
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int x, y;
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int xres;
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int img_byte_per_pixel = 3;
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void *image;
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if (is_rgba)
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img_byte_per_pixel++;
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@ -173,11 +174,11 @@ void rgba_blend(struct fb_info *info, void *image, void* buf, int height,
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for (y = 0; y < height; y++) {
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adr = buf + ((y + starty) * xres + startx) *
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(info->bits_per_pixel >> 3);
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image = img->data + (y * img->width *img_byte_per_pixel);
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for (x = 0; x < width; x++) {
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char *pixel;
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uint8_t *pixel = image;
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pixel = image;
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if (is_rgba)
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set_rgba_pixel(info, adr, pixel[0], pixel[1],
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pixel[2], pixel[3]);
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@ -63,7 +63,7 @@ static int png_renderer(struct fb_info *info, struct image *img, void* fb,
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buf = offscreenbuf ? offscreenbuf : fb;
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rgba_blend(info, img->data, buf, height, width, startx, starty, true);
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rgba_blend(info, img, buf, height, width, startx, starty, true);
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if (offscreenbuf) {
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int fbsize;
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