diff options
Diffstat (limited to 'libavfilter/opencl/xfade.cl')
-rw-r--r-- | libavfilter/opencl/xfade.cl | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/libavfilter/opencl/xfade.cl b/libavfilter/opencl/xfade.cl new file mode 100644 index 0000000000..ae2f33c024 --- /dev/null +++ b/libavfilter/opencl/xfade.cl @@ -0,0 +1,145 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +const sampler_t sampler = (CLK_NORMALIZED_COORDS_FALSE | + CLK_FILTER_NEAREST); + +__kernel void fade(__write_only image2d_t dst, + __read_only image2d_t src1, + __read_only image2d_t src2, + float progress) +{ + int2 p = (int2)(get_global_id(0), get_global_id(1)); + + float4 val1 = read_imagef(src1, sampler, p); + float4 val2 = read_imagef(src2, sampler, p); + + write_imagef(dst, p, mix(val2, val1, progress)); +} + +__kernel void wipeleft(__write_only image2d_t dst, + __read_only image2d_t src1, + __read_only image2d_t src2, + float progress) +{ + int s = (int)(get_image_dim(src1).x * progress); + int2 p = (int2)(get_global_id(0), get_global_id(1)); + + float4 val1 = read_imagef(src1, sampler, p); + float4 val2 = read_imagef(src2, sampler, p); + + write_imagef(dst, p, p.x > s ? val2 : val1); +} + +__kernel void wiperight(__write_only image2d_t dst, + __read_only image2d_t src1, + __read_only image2d_t src2, + float progress) +{ + int s = (int)(get_image_dim(src1).x * (1.f - progress)); + int2 p = (int2)(get_global_id(0), get_global_id(1)); + + float4 val1 = read_imagef(src1, sampler, p); + float4 val2 = read_imagef(src2, sampler, p); + + write_imagef(dst, p, p.x > s ? val1 : val2); +} + +__kernel void wipeup(__write_only image2d_t dst, + __read_only image2d_t src1, + __read_only image2d_t src2, + float progress) +{ + int s = (int)(get_image_dim(src1).y * progress); + int2 p = (int2)(get_global_id(0), get_global_id(1)); + + float4 val1 = read_imagef(src1, sampler, p); + float4 val2 = read_imagef(src2, sampler, p); + + write_imagef(dst, p, p.y > s ? val2 : val1); +} + +__kernel void wipedown(__write_only image2d_t dst, + __read_only image2d_t src1, + __read_only image2d_t src2, + float progress) +{ + int s = (int)(get_image_dim(src1).y * (1.f - progress)); + int2 p = (int2)(get_global_id(0), get_global_id(1)); + + float4 val1 = read_imagef(src1, sampler, p); + float4 val2 = read_imagef(src2, sampler, p); + + write_imagef(dst, p, p.y > s ? val1 : val2); +} + +void slide(__write_only image2d_t dst, + __read_only image2d_t src1, + __read_only image2d_t src2, + float progress, + int2 direction) +{ + int w = get_image_dim(src1).x; + int h = get_image_dim(src1).y; + int2 wh = (int2)(w, h); + int2 uv = (int2)(get_global_id(0), get_global_id(1)); + int2 pi = (int2)(progress * w, progress * h); + int2 p = uv + pi * direction; + int2 f = p % wh; + + f = f + (int2)(w, h) * (int2)(f.x < 0, f.y < 0); + float4 val1 = read_imagef(src1, sampler, f); + float4 val2 = read_imagef(src2, sampler, f); + write_imagef(dst, uv, mix(val1, val2, (p.y >= 0) * (h > p.y) * (p.x >= 0) * (w > p.x))); +} + +__kernel void slidedown(__write_only image2d_t dst, + __read_only image2d_t src1, + __read_only image2d_t src2, + float progress) +{ + int2 direction = (int2)(0, 1); + slide(dst, src1, src2, progress, direction); +} + +__kernel void slideup(__write_only image2d_t dst, + __read_only image2d_t src1, + __read_only image2d_t src2, + float progress) +{ + int2 direction = (int2)(0, -1); + slide(dst, src1, src2, progress, direction); +} + +__kernel void slideleft(__write_only image2d_t dst, + __read_only image2d_t src1, + __read_only image2d_t src2, + float progress) +{ + int2 direction = (int2)(-1, 0); + slide(dst, src1, src2, progress, direction); +} + +__kernel void slideright(__write_only image2d_t dst, + __read_only image2d_t src1, + __read_only image2d_t src2, + float progress) +{ + int2 direction = (int2)(1, 0); + slide(dst, src1, src2, progress, direction); +} |