X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavfilter%2Fopencl.h;h=1b7f117865304e95934ce93bd1fa91f0a73fdc0b;hb=1431ff2d379e25890309569dd99ca613b4fbb564;hp=4d740c18abaec0807d8db1de147086fde0a07227;hpb=061337a073236cb0bc6c56036f50f883d2887681;p=ffmpeg

diff --git a/libavfilter/opencl.h b/libavfilter/opencl.h
index 4d740c18aba..1b7f1178653 100644
--- a/libavfilter/opencl.h
+++ b/libavfilter/opencl.h
@@ -19,6 +19,12 @@
 #ifndef AVFILTER_OPENCL_H
 #define AVFILTER_OPENCL_H
 
+// The intended target is OpenCL 1.2, so disable warnings for APIs
+// deprecated after that.  This primarily applies to clCreateCommandQueue(),
+// we can't use the replacement clCreateCommandQueueWithProperties() because
+// it was introduced in OpenCL 2.0.
+#define CL_USE_DEPRECATED_OPENCL_1_2_APIS
+
 #include "libavutil/buffer.h"
 #include "libavutil/hwcontext.h"
 #include "libavutil/hwcontext_opencl.h"
@@ -40,6 +46,33 @@ typedef struct OpenCLFilterContext {
     int                output_height;
 } OpenCLFilterContext;
 
+
+/**
+ * set argument to specific Kernel.
+ * This macro relies on usage of local label "fail" and variables:
+ * avctx, cle and err.
+ */
+#define CL_SET_KERNEL_ARG(kernel, arg_num, type, arg)          \
+    cle = clSetKernelArg(kernel, arg_num, sizeof(type), arg);  \
+    if (cle != CL_SUCCESS) {                                   \
+        av_log(avctx, AV_LOG_ERROR, "Failed to set kernel "    \
+               "argument %d: error %d.\n", arg_num, cle);      \
+        err = AVERROR(EIO);                                    \
+        goto fail;                                             \
+    }
+
+/**
+ * A helper macro to handle OpenCL errors. It will assign errcode to
+ * variable err, log error msg, and jump to fail label on error.
+ */
+#define CL_FAIL_ON_ERROR(errcode, ...) do {                    \
+        if (cle != CL_SUCCESS) {                               \
+            av_log(avctx, AV_LOG_ERROR, __VA_ARGS__);          \
+            err = errcode;                                     \
+            goto fail;                                         \
+        }                                                      \
+    } while(0)
+
 /**
  * Return that all inputs and outputs support only AV_PIX_FMT_OPENCL.
  */
@@ -84,4 +117,12 @@ int ff_opencl_filter_load_program(AVFilterContext *avctx,
 int ff_opencl_filter_load_program_from_file(AVFilterContext *avctx,
                                             const char *filename);
 
+/**
+ * Find the work size needed needed for a given plane of an image.
+ */
+int ff_opencl_filter_work_size_from_image(AVFilterContext *avctx,
+                                          size_t *work_size,
+                                          AVFrame *frame, int plane,
+                                          int block_alignment);
+
 #endif /* AVFILTER_OPENCL_H */