diff options
| -rw-r--r-- | libavfilter/opencl.c | 13 | ||||
| -rw-r--r-- | libavfilter/opencl.h | 8 |
2 files changed, 21 insertions, 0 deletions
diff --git a/libavfilter/opencl.c b/libavfilter/opencl.c index ac5eec68c6..95f0bfc604 100644 --- a/libavfilter/opencl.c +++ b/libavfilter/opencl.c @@ -337,3 +337,16 @@ int ff_opencl_filter_work_size_from_image(AVFilterContext *avctx, return 0; } + +void ff_opencl_print_const_matrix_3x3(AVBPrint *buf, const char *name_str, + double mat[3][3]) +{ + int i, j; + av_bprintf(buf, "__constant float %s[9] = {\n", name_str); + for (i = 0; i < 3; i++) { + for (j = 0; j < 3; j++) + av_bprintf(buf, " %.5ff,", mat[i][j]); + av_bprintf(buf, "\n"); + } + av_bprintf(buf, "};\n"); +} diff --git a/libavfilter/opencl.h b/libavfilter/opencl.h index 1b7f117865..0b06232ade 100644 --- a/libavfilter/opencl.h +++ b/libavfilter/opencl.h @@ -25,6 +25,7 @@ // it was introduced in OpenCL 2.0. #define CL_USE_DEPRECATED_OPENCL_1_2_APIS +#include "libavutil/bprint.h" #include "libavutil/buffer.h" #include "libavutil/hwcontext.h" #include "libavutil/hwcontext_opencl.h" @@ -124,5 +125,12 @@ int ff_opencl_filter_work_size_from_image(AVFilterContext *avctx, size_t *work_size, AVFrame *frame, int plane, int block_alignment); +/** + * Print a 3x3 matrix into a buffer as __constant array, which could + * be included in an OpenCL program. +*/ + +void ff_opencl_print_const_matrix_3x3(AVBPrint *buf, const char *name_str, + double mat[3][3]); #endif /* AVFILTER_OPENCL_H */ |