forked from enlightenment/efl
71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
#include "evas_common.h"
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#include "evas_convert_colorspace.h"
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#define CONVERT_RGB_565_TO_RGB_888(s) \
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(((((s) << 3) & 0xf8) | (((s) >> 2) & 0x7)) | \
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((((s) << 5) & 0xfc00) | (((s) >> 1) & 0x300)) | \
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((((s) << 8) & 0xf80000) | (((s) << 3) & 0x70000)))
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#define CONVERT_A5P_TO_A8(s) \
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((((s) << 3) & 0xf8) | (((s) >> 2) & 0x7))
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static inline void *
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evas_common_convert_argb8888_to_rgb565_a5p(void *data __UNUSED__, int w __UNUSED__, int h __UNUSED__, int stride __UNUSED__, Eina_Bool has_alpha __UNUSED__)
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{
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return NULL;
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}
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static inline void *
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evas_common_convert_rgb565_a5p_to_argb8888(void *data, int w, int h, int stride, Eina_Bool has_alpha)
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{
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DATA16 *src, *end;
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DATA32 *ret, *dst;
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src = data;
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end = src + (stride * h);
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ret = malloc(w * h * sizeof(DATA32));
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dst = ret;
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if (has_alpha)
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{
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DATA8 *alpha;
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alpha = (DATA8 *)end;
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for (; src < end; src++, alpha++, dst++)
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*dst = (CONVERT_A5P_TO_A8(*alpha) << 24) |
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CONVERT_RGB_565_TO_RGB_888(*src);
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}
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else
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{
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for (; src < end; src++, dst++)
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*dst = CONVERT_RGB_565_TO_RGB_888(*src);
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}
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return ret;
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}
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EAPI void *
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evas_common_convert_argb8888_to(void *data, int w, int h, int stride, Eina_Bool has_alpha, Evas_Colorspace cspace)
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{
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switch (cspace)
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{
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case EVAS_COLORSPACE_RGB565_A5P:
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return evas_common_convert_argb8888_to_rgb565_a5p(data, w, h, stride, has_alpha);
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default:
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break;
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}
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return NULL;
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}
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EAPI void *
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evas_common_convert_rgb565_a5p_to(void *data, int w, int h, int stride, Eina_Bool has_alpha, Evas_Colorspace cspace)
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{
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switch (cspace)
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{
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case EVAS_COLORSPACE_ARGB8888:
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return evas_common_convert_rgb565_a5p_to_argb8888(data, w, h, stride, has_alpha);
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default:
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break;
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}
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return NULL;
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}
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