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lavfi/metal: fix build with pre-10.11 deployment targets
- Ensure the yadif .metal compiles when targeting any Metal runtime version - Use some preprocessor awkwardness to ensure Core Video's Metal-specific functionality is exposed regardless of our deployment target (this works around what seems to be an SDK header bug, filed as FB9816002) - Ensure all direct references to Metal functions and classes are gated behind runtime version checks (this satisfies clang's deployment-target violation warnings provided by -Wunguarded-availability).
This commit is contained in:
rcombs
parent
0f77ee9d97
commit
8e24a8e93a
@ -20,16 +20,40 @@
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#define AVFILTER_METAL_UTILS_H
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#include <Metal/Metal.h>
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#include <AvailabilityMacros.h>
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// CoreVideo accidentally(?) preprocessor-gates Metal functionality
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// on MAC_OS_X_VERSION_MIN_REQUIRED >= 101100 (FB9816002).
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// There doesn't seem to be any particular reason for this,
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// so here we temporarily redefine it to at least that value
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// so CV will give us CVMetalTextureRef and the related functions.
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#if defined(MAC_OS_X_VERSION_MIN_REQUIRED) && (MAC_OS_X_VERSION_MIN_REQUIRED < 101100)
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#define ORIG_MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_MIN_REQUIRED
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#undef MAC_OS_X_VERSION_MIN_REQUIRED
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#define MAC_OS_X_VERSION_MIN_REQUIRED 101100
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#endif
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#include <CoreVideo/CoreVideo.h>
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#ifdef ORIG_MAC_OS_X_VERSION_MIN_REQUIRED
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#undef MAC_OS_X_VERSION_MIN_REQUIRED
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#define MAC_OS_X_VERSION_MIN_REQUIRED ORIG_MAC_OS_X_VERSION_MIN_REQUIRED
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#undef ORIG_MAC_OS_X_VERSION_MIN_REQUIRED
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#endif
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void ff_metal_compute_encoder_dispatch(id<MTLDevice> device,
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id<MTLComputePipelineState> pipeline,
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id<MTLComputeCommandEncoder> encoder,
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NSUInteger width, NSUInteger height);
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NSUInteger width, NSUInteger height)
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API_AVAILABLE(macos(10.11), ios(8.0));
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CVMetalTextureRef ff_metal_texture_from_pixbuf(void *avclass,
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CVMetalTextureCacheRef textureCache,
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CVPixelBufferRef pixbuf,
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int plane,
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MTLPixelFormat format);
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MTLPixelFormat format)
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API_AVAILABLE(macos(10.11), ios(8.0));
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#endif /* AVFILTER_METAL_UTILS_H */
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@ -26,6 +26,15 @@
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using namespace metal;
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/*
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* Version compat shims
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*/
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#if __METAL_VERSION__ < 210
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#define max3(x, y, z) max(x, max(y, z))
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#define min3(x, y, z) min(x, min(y, z))
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#endif
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/*
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* Parameters
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*/
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@ -44,7 +53,7 @@ struct deintParams {
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*/
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#define accesstype access::sample
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const sampler s(coord::pixel);
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constexpr sampler s(coord::pixel);
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template <typename T>
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T tex2D(texture2d<float, access::sample> tex, uint x, uint y)
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@ -26,10 +26,12 @@
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#include "libavutil/hwcontext.h"
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#include "libavutil/objc.h"
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#include <assert.h>
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extern char ff_vf_yadif_videotoolbox_metallib_data[];
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extern unsigned int ff_vf_yadif_videotoolbox_metallib_len;
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typedef struct YADIFVTContext {
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typedef struct API_AVAILABLE(macos(10.11), ios(8.0)) YADIFVTContext {
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YADIFContext yadif;
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AVBufferRef *device_ref;
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@ -44,7 +46,12 @@ typedef struct YADIFVTContext {
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id<MTLBuffer> mtlParamsBuffer;
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CVMetalTextureCacheRef textureCache;
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} YADIFVTContext;
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} YADIFVTContext API_AVAILABLE(macos(10.11), ios(8.0));
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// Using sizeof(YADIFVTContext) outside of an availability check will error
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// if we're targeting an older OS version, so we need to calculate the size ourselves
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// (we'll statically verify it's correct in yadif_videotoolbox_init behind a check)
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#define YADIF_VT_CTX_SIZE (sizeof(YADIFContext) + sizeof(void*) * 10)
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struct mtlYadifParams {
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uint channels;
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@ -62,7 +69,7 @@ static void call_kernel(AVFilterContext *ctx,
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id<MTLTexture> next,
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int channels,
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int parity,
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int tff)
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int tff) API_AVAILABLE(macos(10.11), ios(8.0))
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{
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YADIFVTContext *s = ctx->priv;
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id<MTLCommandBuffer> buffer = s->mtlQueue.commandBuffer;
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@ -93,7 +100,7 @@ static void call_kernel(AVFilterContext *ctx,
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}
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static void filter(AVFilterContext *ctx, AVFrame *dst,
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int parity, int tff)
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int parity, int tff) API_AVAILABLE(macos(10.11), ios(8.0))
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{
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YADIFVTContext *s = ctx->priv;
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YADIFContext *y = &s->yadif;
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@ -162,7 +169,7 @@ exit:
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return;
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}
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static av_cold void yadif_videotoolbox_uninit(AVFilterContext *ctx)
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static av_cold void do_uninit(AVFilterContext *ctx) API_AVAILABLE(macos(10.11), ios(8.0))
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{
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YADIFVTContext *s = ctx->priv;
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YADIFContext *y = &s->yadif;
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@ -188,7 +195,15 @@ static av_cold void yadif_videotoolbox_uninit(AVFilterContext *ctx)
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}
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}
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static av_cold int yadif_videotoolbox_init(AVFilterContext *ctx)
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static av_cold void yadif_videotoolbox_uninit(AVFilterContext *ctx)
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{
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if (@available(macOS 10.11, iOS 8.0, *)) {
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do_uninit(ctx);
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}
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}
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static av_cold int do_init(AVFilterContext *ctx) API_AVAILABLE(macos(10.11), ios(8.0))
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{
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YADIFVTContext *s = ctx->priv;
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NSError *err = nil;
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@ -261,7 +276,19 @@ fail:
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return AVERROR_EXTERNAL;
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}
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static int config_input(AVFilterLink *inlink)
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static av_cold int yadif_videotoolbox_init(AVFilterContext *ctx)
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{
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if (@available(macOS 10.11, iOS 8.0, *)) {
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// Ensure we calculated YADIF_VT_CTX_SIZE correctly
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static_assert(YADIF_VT_CTX_SIZE == sizeof(YADIFVTContext), "Incorrect YADIF_VT_CTX_SIZE value!");
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return do_init(ctx);
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} else {
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av_log(ctx, AV_LOG_ERROR, "Metal is not available on this OS version\n");
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return AVERROR(ENOSYS);
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}
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}
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static int do_config_input(AVFilterLink *inlink) API_AVAILABLE(macos(10.11), ios(8.0))
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{
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AVFilterContext *ctx = inlink->dst;
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YADIFVTContext *s = ctx->priv;
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@ -283,7 +310,18 @@ static int config_input(AVFilterLink *inlink)
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return 0;
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}
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static int config_output(AVFilterLink *link)
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static int config_input(AVFilterLink *inlink)
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{
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AVFilterContext *ctx = inlink->dst;
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if (@available(macOS 10.11, iOS 8.0, *)) {
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return do_config_input(inlink);
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} else {
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av_log(ctx, AV_LOG_ERROR, "Metal is not available on this OS version\n");
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return AVERROR(ENOSYS);
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}
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}
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static int do_config_output(AVFilterLink *link) API_AVAILABLE(macos(10.11), ios(8.0))
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{
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AVHWFramesContext *output_frames;
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AVFilterContext *ctx = link->src;
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@ -347,6 +385,17 @@ exit:
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return ret;
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}
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static int config_output(AVFilterLink *link)
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{
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AVFilterContext *ctx = link->src;
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if (@available(macOS 10.11, iOS 8.0, *)) {
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return do_config_output(link);
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} else {
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av_log(ctx, AV_LOG_ERROR, "Metal is not available on this OS version\n");
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return AVERROR(ENOSYS);
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}
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}
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#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
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#define CONST(name, help, val, unit) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, INT_MIN, INT_MAX, FLAGS, unit }
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@ -394,7 +443,7 @@ static const AVFilterPad yadif_videotoolbox_outputs[] = {
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AVFilter ff_vf_yadif_videotoolbox = {
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.name = "yadif_videotoolbox",
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.description = NULL_IF_CONFIG_SMALL("YADIF for VideoToolbox frames using Metal compute"),
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.priv_size = sizeof(YADIFVTContext),
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.priv_size = YADIF_VT_CTX_SIZE,
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.priv_class = &yadif_videotoolbox_class,
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.init = yadif_videotoolbox_init,
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.uninit = yadif_videotoolbox_uninit,
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