35 lines
1.0 KiB
C
35 lines
1.0 KiB
C
#include <gint/image.h>
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#include <gint/defs/util.h>
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#include "fixed.h"
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void image_linear_rgb16(void *src, void *dst, struct image_linear_map *map);
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void image_linear_p8(void *src, void *dst, struct image_linear_map *map);
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void image_linear(image_t const *src, image_t *dst,
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struct image_linear_map *map)
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{
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if(!image_target(src, dst, NOT_P4, SAME_DEPTH))
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return;
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/* Clip the destination */
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map->dst_w = min(map->dst_w, dst->width);
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map->dst_h = min(map->dst_h, dst->height);
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int drow_u = -map->dx_u * map->dst_w + map->dy_u;
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int drow_v = -map->dx_v * map->dst_w + map->dy_v;
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/* Change dy to mean drow before calling the assembler code */
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map->dy_u = drow_u;
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map->dy_v = drow_v;
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/* Record strides */
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map->src_stride = src->stride;
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map->dst_stride = dst->stride;
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/* Call the assembler implementation */
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if(IMAGE_IS_RGB16(src->format))
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image_linear_rgb16(src->data, dst->data, map);
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else if(IMAGE_IS_P8(src->format))
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image_linear_p8(src->data, dst->data, map);
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}
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