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video/out/gpu/context: add auto dummy context

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This adds a dummy context at the start of the context lists, which
serves three purposes:

- The "auto" option is listed for --gpu-context=help.
- Some special handlings of "auto" string are removed.
- Make sure that lists have at least one element, so MP_ARRAY_SIZE()
  works as intended.
This commit is contained in:
nanahi 2024-04-17 20:26:06 -04:00 committed by Kacper Michajłow
parent 96e1f1dfa5
commit a6ff33425d
1 changed files with 21 additions and 5 deletions
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26
video/out/gpu/context.c
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@ -57,7 +57,27 @@ extern const struct ra_ctx_fns ra_ctx_d3d11;
/* No API */
extern const struct ra_ctx_fns ra_ctx_wldmabuf;
/* Autoprobe dummy. Always fails to create. */
static bool dummy_init(struct ra_ctx *ctx)
{
return false;
}
static void dummy_uninit(struct ra_ctx *ctx)
{
}
static const struct ra_ctx_fns ra_ctx_dummy = {
.type = "auto",
.name = "auto",
.description = "Auto detect",
.init = dummy_init,
.uninit = dummy_uninit,
};
static const struct ra_ctx_fns *contexts[] = {
&ra_ctx_dummy,
// Direct3D contexts:
#if HAVE_D3D11
&ra_ctx_d3d11,
#endif
@ -113,6 +133,7 @@ static const struct ra_ctx_fns *contexts[] = {
};
static const struct ra_ctx_fns *no_api_contexts[] = {
&ra_ctx_dummy,
/* No API contexts: */
#if HAVE_DMABUF_WAYLAND
&ra_ctx_wldmabuf,
@ -133,8 +154,6 @@ static bool get_desc(struct m_obj_desc *dst, int index)
static bool check_unknown_entry(const char *name)
{
struct bstr param = bstr0(name);
if (bstr_equals0(param, "auto"))
return true;
for (int i = 0; i < MP_ARRAY_SIZE(contexts); i++) {
if (bstr_equals0(param, contexts[i]->name))
return true;
@ -155,7 +174,6 @@ static int ra_ctx_api_help(struct mp_log *log, const struct m_option *opt,
struct bstr name)
{
mp_info(log, "GPU APIs (contexts):\n");
mp_info(log, " auto (autodetect)\n");
for (int n = 0; n < MP_ARRAY_SIZE(contexts); n++) {
mp_info(log, " %s (%s)\n", contexts[n]->type, contexts[n]->name);
}
@ -165,8 +183,6 @@ static int ra_ctx_api_help(struct mp_log *log, const struct m_option *opt,
static inline OPT_STRING_VALIDATE_FUNC(ra_ctx_validate_api)
{
struct bstr param = bstr0(*value);
if (bstr_equals0(param, "auto"))
return 1;
for (int i = 0; i < MP_ARRAY_SIZE(contexts); i++) {
if (bstr_equals0(param, contexts[i]->type))
return 1;