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/*
* Copyright (c) 2025 Lynne <dev@lynne.ee>
*
* 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
*/
#include "ffv1_vulkan.h"
#include "libavutil/crc.h"
int ff_ffv1_vk_update_state_transition_data(FFVulkanContext *s,
FFVkBuffer *vkb, FFV1Context *f)
{
int err;
uint8_t *buf_mapped;
RET(ff_vk_map_buffer(s, vkb, &buf_mapped, 0));
for (int i = 1; i < 256; i++) {
buf_mapped[256 + i] = f->state_transition[i];
buf_mapped[256 - i] = 256 - (int)f->state_transition[i];
}
RET(ff_vk_unmap_buffer(s, vkb, 1));
fail:
return err;
}
static int init_state_transition_data(FFVulkanContext *s,
FFVkBuffer *vkb, FFV1Context *f,
int (*write_data)(FFVulkanContext *s,
FFVkBuffer *vkb, FFV1Context *f))
{
int err;
size_t buf_len = 512*sizeof(uint8_t);
RET(ff_vk_create_buf(s, vkb,
buf_len,
NULL, NULL,
VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT |
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT |
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT));
write_data(s, vkb, f);
fail:
return err;
}
int ff_ffv1_vk_init_state_transition_data(FFVulkanContext *s,
FFVkBuffer *vkb, FFV1Context *f)
{
return init_state_transition_data(s, vkb, f,
ff_ffv1_vk_update_state_transition_data);
}
int ff_ffv1_vk_init_quant_table_data(FFVulkanContext *s,
FFVkBuffer *vkb, FFV1Context *f)
{
int err;
int16_t *buf_mapped;
size_t buf_len = MAX_QUANT_TABLES*
MAX_CONTEXT_INPUTS*
MAX_QUANT_TABLE_SIZE*sizeof(int16_t);
RET(ff_vk_create_buf(s, vkb,
buf_len,
NULL, NULL,
VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT |
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT |
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT));
RET(ff_vk_map_buffer(s, vkb, (void *)&buf_mapped, 0));
memcpy(buf_mapped, f->quant_tables,
sizeof(f->quant_tables));
RET(ff_vk_unmap_buffer(s, vkb, 1));
fail:
return err;
}
int ff_ffv1_vk_init_crc_table_data(FFVulkanContext *s,
FFVkBuffer *vkb, FFV1Context *f)
{
int err;
uint32_t *buf_mapped;
size_t buf_len = 256*sizeof(int32_t);
RET(ff_vk_create_buf(s, vkb,
buf_len,
NULL, NULL,
VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT |
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT |
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT));
RET(ff_vk_map_buffer(s, vkb, (void *)&buf_mapped, 0));
memcpy(buf_mapped, av_crc_get_table(AV_CRC_32_IEEE), buf_len);
RET(ff_vk_unmap_buffer(s, vkb, 1));
fail:
return err;
}
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