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Move YUV->RGB in JPEG load from before scaler to after scaler. Required change to struct custom_format, so sorted the plugin API as well.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20856 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Andrew Mahone 2009-05-06 04:53:56 +00:00
parent f779160de5
commit eef7945a97
9 changed files with 174 additions and 81 deletions
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30
apps/plugins/pictureflow.c
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@ -634,13 +634,43 @@ static void output_row_transposed(uint32_t row, void * row_in,
#endif
}
#ifdef HAVE_LCD_COLOR
static void output_row_transposed_fromyuv(uint32_t row, void * row_in,
struct scaler_context *ctx)
{
pix_t *dest = (pix_t*)ctx->bm->data + row;
pix_t *end = dest + ctx->bm->height * ctx->bm->width;
struct uint32_rgb *qp = (struct uint32_rgb*)row_in;
for (; dest < end; dest += ctx->bm->height)
{
unsigned r, g, b, y, u, v;
y = SC_MUL(qp->b + ctx->round, ctx->divisor);
u = SC_MUL(qp->g + ctx->round, ctx->divisor);
v = SC_MUL(qp->r + ctx->round, ctx->divisor);
qp++;
yuv_to_rgb(y, u, v, &r, &g, &b);
r = (31 * r + (r >> 3) + 127) >> 8;
g = (63 * g + (g >> 2) + 127) >> 8;
b = (31 * b + (b >> 3) + 127) >> 8;
*dest = LCD_RGBPACK_LCD(r, g, b);
}
}
#endif
static unsigned int get_size(struct bitmap *bm)
{
return bm->width * bm->height * sizeof(pix_t);
}
const struct custom_format format_transposed = {
#ifdef HAVE_LCD_COLOR
.output_row = {
output_row_transposed,
output_row_transposed_fromyuv
},
#else
.output_row = output_row_transposed,
#endif
.get_size = get_size
};