File size: 4,953 Bytes
8ead80b |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 |
/*
* 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);
}
|