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swscale/ops_dispatch: allow forcing specific ops backend

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This will be used eventually when I rewrite checkasm/sw_ops to re-use the
code in ops_dispatch.c instead of hand-rolling the execution layer.

Signed-off-by: Niklas Haas <git@haasn.dev>
This commit is contained in:
Niklas Haas
2026-04-24 01:59:09 +02:00
parent 9021448857
commit 420b1bf368
3 changed files with 14 additions and 10 deletions
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libswscale/graph.c
+1 -1
View File
@@ -593,7 +593,7 @@ static int add_convert_pass(SwsGraph *graph, const SwsFormat *src,
av_log(ctx, AV_LOG_DEBUG, "Unoptimized operation list:\n");
ff_sws_op_list_print(ctx, AV_LOG_DEBUG, AV_LOG_TRACE, ops);
ret = ff_sws_compile_pass(graph, &ops, SWS_OP_FLAG_OPTIMIZE, input, output);
ret = ff_sws_compile_pass(graph, NULL, &ops, SWS_OP_FLAG_OPTIMIZE, input, output);
if (ret < 0)
goto fail;
libswscale/ops_dispatch.c
+8 -7
View File
@@ -470,15 +470,15 @@ static void align_pass(SwsPass *pass, int block_size, int over_rw, int pixel_bit
buf->width_pad = FFMAX(buf->width_pad, pad);
}
static int compile(SwsGraph *graph, const SwsOpList *ops, SwsPass *input,
SwsPass **output)
static int compile(SwsGraph *graph, const SwsOpBackend *backend,
const SwsOpList *ops, SwsPass *input, SwsPass **output)
{
SwsContext *ctx = graph->ctx;
SwsOpPass *p = av_mallocz(sizeof(*p));
if (!p)
return AVERROR(ENOMEM);
int ret = ff_sws_ops_compile(ctx, NULL, ops, &p->comp);
int ret = ff_sws_ops_compile(ctx, backend, ops, &p->comp);
if (ret < 0)
goto fail;
@@ -580,8 +580,9 @@ fail:
return ret;
}
int ff_sws_compile_pass(SwsGraph *graph, SwsOpList **pops, int flags,
SwsPass *input, SwsPass **output)
int ff_sws_compile_pass(SwsGraph *graph, const SwsOpBackend *backend,
SwsOpList **pops, int flags, SwsPass *input,
SwsPass **output)
{
const int passes_orig = graph->num_passes;
SwsContext *ctx = graph->ctx;
@@ -611,7 +612,7 @@ int ff_sws_compile_pass(SwsGraph *graph, SwsOpList **pops, int flags,
ff_sws_op_list_print(ctx, AV_LOG_DEBUG, AV_LOG_TRACE, ops);
}
ret = compile(graph, ops, input, output);
ret = compile(graph, backend, ops, input, output);
if (ret != AVERROR(ENOTSUP))
goto out;
@@ -629,7 +630,7 @@ int ff_sws_compile_pass(SwsGraph *graph, SwsOpList **pops, int flags,
goto out;
}
ret = compile(graph, ops, prev, &prev);
ret = compile(graph, backend, ops, prev, &prev);
if (ret < 0) {
ff_sws_op_list_free(&rest);
goto out;
libswscale/ops_dispatch.h
+5 -2
View File
@@ -162,11 +162,14 @@ int ff_sws_ops_compile(SwsContext *ctx, const SwsOpBackend *backend,
* Resolves an operation list to a graph pass. The first and last operations
* must be a read/write respectively. `flags` is a list of SwsOpCompileFlags.
*
* @param backend Force the use of a specific backend (Optional)
*
* Takes over ownership of `ops` and sets it to NULL, even on failure.
*
* Note: `ops` may be modified by this function.
*/
int ff_sws_compile_pass(SwsGraph *graph, SwsOpList **ops, int flags,
SwsPass *input, SwsPass **output);
int ff_sws_compile_pass(SwsGraph *graph, const SwsOpBackend *backend,
SwsOpList **ops, int flags, SwsPass *input,
SwsPass **output);
#endif /* SWSCALE_OPS_DISPATCH_H */