91 lines
1.8 KiB
C
91 lines
1.8 KiB
C
#include <libimg.h>
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#include "libimg-internal.h"
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#include <gint/display.h>
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#ifdef FX9860G
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#include <gint/gray.h>
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#endif
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void img_fill(img_t img, img_pixel_t color)
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{
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img_pixel_t *px = img.pixels;
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for(int y = 0; y < img.height; y++, px += img.stride)
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for(int x = 0; x < img.width; x++)
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{
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px[x] = color;
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}
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}
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void img_clear(img_t img)
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{
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img_fill(img, IMG_ALPHA);
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}
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void img_render(img_t src, img_t dst)
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{
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if(img_null(src) || img_null(dst) || dst.flags & FLAG_RO) return;
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/* Clip the rectangle */
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if(src.width > dst.width)
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src = img_sub(src, 0, 0, dst.width, -1);
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if(src.height > dst.height)
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src = img_sub(src, 0, 0, -1, dst.height);
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/* Copy pixels */
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img_pixel_t *src_px = src.pixels;
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img_pixel_t *dst_px = dst.pixels;
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for(int dy = 0; dy < src.height; dy++)
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{
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for(int dx = 0; dx < src.width; dx++)
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{
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if(src_px[dx] != IMG_ALPHA)
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dst_px[dx] = src_px[dx];
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}
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src_px += src.stride;
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dst_px += dst.stride;
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}
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}
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#ifdef FX9860G
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void img_render_vram(img_t img, int x, int y)
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{
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img_pixel_t *px = img.pixels;
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for(int dy = 0; dy < img.height; dy++, px += img.stride)
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for(int dx = 0; dx < img.width; dx++)
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{
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img_pixel_t c = px[dx];
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/* Provide a mildly useful approximation of gray rendering.
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Seeing the black-and-white approximation might make it more
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explicit to the user that mono rendering has been used,
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rather than rendering nothing */
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if(c == C_DARK) c = C_BLACK;
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if(c == C_LIGHT) c = C_WHITE;
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dpixel(x+dx, y+dy, c);
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}
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}
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void img_render_vram_gray(img_t img, int x, int y)
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{
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img_pixel_t *px = img.pixels;
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for(int dy = 0; dy < img.height; dy++, px += img.stride)
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for(int dx = 0; dx < img.width; dx++)
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{
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gpixel(x+dx, y+dy, px[dx]);
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}
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}
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#endif /* FX9860G */
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#ifdef FXCG50
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void img_render_vram(img_t img, int x, int y)
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{
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img_render(img, img_at(img_vram(), x, y));
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}
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#endif /* FXCG50 */
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