| /* |
| * 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); |
| } |