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Refactor scaler_ctx_scale

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This commit is contained in:
twinaphex 2015-01-06 17:35:32 +01:00
parent 2d407625b3
commit 0f38b0c0eb
1 changed files with 33 additions and 56 deletions
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89
libretro-sdk/gfx/scaler/scaler.c
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@ -224,77 +224,54 @@ void scaler_ctx_gen_reset(struct scaler_ctx *ctx)
void scaler_ctx_scale(struct scaler_ctx *ctx,
void *output, const void *input)
{
const void *input_frame = input;
void *output_frame = output;
int input_stride = ctx->in_stride;
int output_stride = ctx->out_stride;
if (ctx->unscaled)
{
/* Just perform straight pixel conversion. */
ctx->direct_pixconv(output, input,
ctx->out_width, ctx->out_height,
ctx->out_stride, ctx->in_stride);
return;
}
else if (ctx->scaler_special)
if (ctx->in_fmt != SCALER_FMT_ARGB8888)
{
ctx->in_pixconv(ctx->input.frame, input,
ctx->in_width, ctx->in_height,
ctx->input.stride, ctx->in_stride);
input_frame = ctx->input.frame;
input_stride = ctx->input.stride;
}
if (ctx->out_fmt != SCALER_FMT_ARGB8888)
{
output_frame = ctx->output.frame;
output_stride = ctx->output.stride;
}
if (ctx->scaler_special)
{
/* Take some special, and (hopefully) more optimized path. */
const void *inp = input;
int in_stride = ctx->in_stride;
if (ctx->in_fmt != SCALER_FMT_ARGB8888)
{
ctx->in_pixconv(ctx->input.frame, input,
ctx->in_width, ctx->in_height,
ctx->input.stride, ctx->in_stride);
inp = ctx->input.frame;
in_stride = ctx->input.stride;
}
bool conv_out = ctx->out_fmt != SCALER_FMT_ARGB8888;
void *outp = output;
int out_stride = ctx->out_stride;
if (conv_out)
{
outp = ctx->output.frame;
out_stride = ctx->output.stride;
}
ctx->scaler_special(ctx, outp, inp,
ctx->scaler_special(ctx, output_frame, input_frame,
ctx->out_width, ctx->out_height,
ctx->in_width, ctx->in_height,
out_stride, in_stride);
if (conv_out)
{
ctx->out_pixconv(output, ctx->output.frame,
ctx->out_width, ctx->out_height,
ctx->out_stride, ctx->output.stride);
}
output_stride, input_stride);
}
else
{
const void *input_frame = input;
int stride = ctx->in_stride;
bool out_fmt_is_not_argb8888 = (ctx->out_fmt != SCALER_FMT_ARGB8888);
/* Take generic filter path. */
if (ctx->in_fmt != SCALER_FMT_ARGB8888)
{
ctx->in_pixconv(ctx->input.frame, input,
ctx->in_width, ctx->in_height,
ctx->input.stride, ctx->in_stride);
input_frame = ctx->input.frame;
stride = ctx->input.stride;
}
ctx->scaler_horiz(ctx, input_frame, stride);
ctx->scaler_vert(ctx,
out_fmt_is_not_argb8888 ? ctx->output.frame : output,
out_fmt_is_not_argb8888 ? ctx->output.stride : ctx->out_stride);
if (out_fmt_is_not_argb8888)
ctx->out_pixconv(output, ctx->output.frame,
ctx->out_width, ctx->out_height,
ctx->out_stride, ctx->output.stride);
ctx->scaler_horiz(ctx, input_frame, input_stride);
ctx->scaler_vert (ctx, output, output_stride);
}
if (ctx->out_fmt != SCALER_FMT_ARGB8888)
ctx->out_pixconv(output, ctx->output.frame,
ctx->out_width, ctx->out_height,
ctx->out_stride, ctx->output.stride);
}