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Simplify scaler.c

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This commit is contained in:
twinaphex 2017-04-16 10:36:16 +02:00
parent 8fd0033b43
commit f14dbe081b
1 changed files with 99 additions and 114 deletions
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213
libretro-common/gfx/scaler/scaler.c
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@ -104,115 +104,6 @@ static bool allocate_frames(struct scaler_ctx *ctx)
return true;
}
/**
* set_direct_pix_conv:
* @ctx : pointer to scaler context object.
*
* Bind a pixel converter callback function to the 'direct_pixconv' function pointer
* of the scaler context object.
*
* Returns: true if a pixel converter function callback could be bound, false if not.
* If false, the function callback 'direct_pixconv' is still unbound.
**/
static bool set_direct_pix_conv(struct scaler_ctx *ctx)
{
switch (ctx->in_fmt)
{
case SCALER_FMT_0RGB1555:
switch (ctx->out_fmt)
{
case SCALER_FMT_ARGB8888:
ctx->direct_pixconv = conv_0rgb1555_argb8888;
break;
case SCALER_FMT_RGB565:
ctx->direct_pixconv = conv_0rgb1555_rgb565;
break;
case SCALER_FMT_BGR24:
ctx->direct_pixconv = conv_0rgb1555_bgr24;
break;
default:
break;
}
break;
case SCALER_FMT_RGB565:
switch (ctx->out_fmt)
{
case SCALER_FMT_ARGB8888:
ctx->direct_pixconv = conv_rgb565_argb8888;
break;
case SCALER_FMT_BGR24:
ctx->direct_pixconv = conv_rgb565_bgr24;
break;
case SCALER_FMT_0RGB1555:
ctx->direct_pixconv = conv_rgb565_0rgb1555;
break;
default:
break;
}
break;
case SCALER_FMT_BGR24:
switch (ctx->out_fmt)
{
case SCALER_FMT_ARGB8888:
ctx->direct_pixconv = conv_bgr24_argb8888;
break;
default:
break;
}
break;
case SCALER_FMT_ARGB8888:
switch (ctx->out_fmt)
{
case SCALER_FMT_0RGB1555:
ctx->direct_pixconv = conv_argb8888_0rgb1555;
break;
case SCALER_FMT_BGR24:
ctx->direct_pixconv = conv_argb8888_bgr24;
break;
case SCALER_FMT_ABGR8888:
ctx->direct_pixconv = conv_argb8888_abgr8888;
break;
case SCALER_FMT_RGBA4444:
ctx->direct_pixconv = conv_argb8888_rgba4444;
break;
default:
break;
}
break;
case SCALER_FMT_YUYV:
switch (ctx->out_fmt)
{
case SCALER_FMT_ARGB8888:
ctx->direct_pixconv = conv_yuyv_argb8888;
break;
default:
break;
}
break;
case SCALER_FMT_RGBA4444:
switch (ctx->out_fmt)
{
case SCALER_FMT_ARGB8888:
ctx->direct_pixconv = conv_rgba4444_argb8888;
break;
case SCALER_FMT_RGB565:
ctx->direct_pixconv = conv_rgba4444_rgb565;
break;
default:
break;
}
break;
case SCALER_FMT_ABGR8888:
/* FIXME/TODO */
break;
}
if (!ctx->direct_pixconv)
return false;
return true;
}
bool scaler_ctx_gen_filter(struct scaler_ctx *ctx)
{
scaler_ctx_gen_reset(ctx);
@ -230,8 +121,104 @@ bool scaler_ctx_gen_filter(struct scaler_ctx *ctx)
if (ctx->in_fmt == ctx->out_fmt)
ctx->direct_pixconv = conv_copy;
else if (!set_direct_pix_conv(ctx))
return false;
else
{
/* Bind a pixel converter callback function to the
* 'direct_pixconv' function pointer of the scaler context object. */
switch (ctx->in_fmt)
{
case SCALER_FMT_0RGB1555:
switch (ctx->out_fmt)
{
case SCALER_FMT_ARGB8888:
ctx->direct_pixconv = conv_0rgb1555_argb8888;
break;
case SCALER_FMT_RGB565:
ctx->direct_pixconv = conv_0rgb1555_rgb565;
break;
case SCALER_FMT_BGR24:
ctx->direct_pixconv = conv_0rgb1555_bgr24;
break;
default:
break;
}
break;
case SCALER_FMT_RGB565:
switch (ctx->out_fmt)
{
case SCALER_FMT_ARGB8888:
ctx->direct_pixconv = conv_rgb565_argb8888;
break;
case SCALER_FMT_BGR24:
ctx->direct_pixconv = conv_rgb565_bgr24;
break;
case SCALER_FMT_0RGB1555:
ctx->direct_pixconv = conv_rgb565_0rgb1555;
break;
default:
break;
}
break;
case SCALER_FMT_BGR24:
switch (ctx->out_fmt)
{
case SCALER_FMT_ARGB8888:
ctx->direct_pixconv = conv_bgr24_argb8888;
break;
default:
break;
}
break;
case SCALER_FMT_ARGB8888:
switch (ctx->out_fmt)
{
case SCALER_FMT_0RGB1555:
ctx->direct_pixconv = conv_argb8888_0rgb1555;
break;
case SCALER_FMT_BGR24:
ctx->direct_pixconv = conv_argb8888_bgr24;
break;
case SCALER_FMT_ABGR8888:
ctx->direct_pixconv = conv_argb8888_abgr8888;
break;
case SCALER_FMT_RGBA4444:
ctx->direct_pixconv = conv_argb8888_rgba4444;
break;
default:
break;
}
break;
case SCALER_FMT_YUYV:
switch (ctx->out_fmt)
{
case SCALER_FMT_ARGB8888:
ctx->direct_pixconv = conv_yuyv_argb8888;
break;
default:
break;
}
break;
case SCALER_FMT_RGBA4444:
switch (ctx->out_fmt)
{
case SCALER_FMT_ARGB8888:
ctx->direct_pixconv = conv_rgba4444_argb8888;
break;
case SCALER_FMT_RGB565:
ctx->direct_pixconv = conv_rgba4444_rgb565;
break;
default:
break;
}
break;
case SCALER_FMT_ABGR8888:
/* FIXME/TODO */
break;
}
if (!ctx->direct_pixconv)
return false;
}
}
else
{
@ -366,14 +353,12 @@ void scaler_ctx_scale(struct scaler_ctx *ctx,
output_stride = ctx->output.stride;
}
/* Take some special, and (hopefully) more optimized path. */
if (ctx->scaler_special)
{
/* Take some special, and (hopefully) more optimized path. */
ctx->scaler_special(ctx, output_frame, input_frame,
ctx->out_width, ctx->out_height,
ctx->in_width, ctx->in_height,
output_stride, input_stride);
}
else
{
/* Take generic filter path. */