diff options
Diffstat (limited to 'drivers/staging/media/hantro/hantro_jpeg.c')
-rw-r--r-- | drivers/staging/media/hantro/hantro_jpeg.c | 355 |
1 files changed, 0 insertions, 355 deletions
diff --git a/drivers/staging/media/hantro/hantro_jpeg.c b/drivers/staging/media/hantro/hantro_jpeg.c deleted file mode 100644 index 36c140fc6a36..000000000000 --- a/drivers/staging/media/hantro/hantro_jpeg.c +++ /dev/null @@ -1,355 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Copyright (C) Collabora, Ltd. - * - * Based on GSPCA and CODA drivers: - * Copyright (C) Jean-Francois Moine (http://moinejf.free.fr) - * Copyright (C) 2014 Philipp Zabel, Pengutronix - */ -#include <linux/dma-mapping.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include "hantro_jpeg.h" -#include "hantro.h" - -#define LUMA_QUANT_OFF 7 -#define CHROMA_QUANT_OFF 72 -#define HEIGHT_OFF 141 -#define WIDTH_OFF 143 - -#define HUFF_LUMA_DC_OFF 160 -#define HUFF_LUMA_AC_OFF 193 -#define HUFF_CHROMA_DC_OFF 376 -#define HUFF_CHROMA_AC_OFF 409 - -/* Default tables from JPEG ITU-T.81 - * (ISO/IEC 10918-1) Annex K, tables K.1 and K.2 - */ -static const unsigned char luma_q_table[] = { - 0x10, 0x0b, 0x0a, 0x10, 0x18, 0x28, 0x33, 0x3d, - 0x0c, 0x0c, 0x0e, 0x13, 0x1a, 0x3a, 0x3c, 0x37, - 0x0e, 0x0d, 0x10, 0x18, 0x28, 0x39, 0x45, 0x38, - 0x0e, 0x11, 0x16, 0x1d, 0x33, 0x57, 0x50, 0x3e, - 0x12, 0x16, 0x25, 0x38, 0x44, 0x6d, 0x67, 0x4d, - 0x18, 0x23, 0x37, 0x40, 0x51, 0x68, 0x71, 0x5c, - 0x31, 0x40, 0x4e, 0x57, 0x67, 0x79, 0x78, 0x65, - 0x48, 0x5c, 0x5f, 0x62, 0x70, 0x64, 0x67, 0x63 -}; - -static unsigned char luma_q_table_reordered[ARRAY_SIZE(luma_q_table)]; - -static const unsigned char chroma_q_table[] = { - 0x11, 0x12, 0x18, 0x2f, 0x63, 0x63, 0x63, 0x63, - 0x12, 0x15, 0x1a, 0x42, 0x63, 0x63, 0x63, 0x63, - 0x18, 0x1a, 0x38, 0x63, 0x63, 0x63, 0x63, 0x63, - 0x2f, 0x42, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, - 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, - 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, - 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, - 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63 -}; - -static unsigned char chroma_q_table_reordered[ARRAY_SIZE(chroma_q_table)]; - -static const unsigned char zigzag[64] = { - 0, 1, 8, 16, 9, 2, 3, 10, - 17, 24, 32, 25, 18, 11, 4, 5, - 12, 19, 26, 33, 40, 48, 41, 34, - 27, 20, 13, 6, 7, 14, 21, 28, - 35, 42, 49, 56, 57, 50, 43, 36, - 29, 22, 15, 23, 30, 37, 44, 51, - 58, 59, 52, 45, 38, 31, 39, 46, - 53, 60, 61, 54, 47, 55, 62, 63 -}; - -static const u32 hw_reorder[64] = { - 0, 8, 16, 24, 1, 9, 17, 25, - 32, 40, 48, 56, 33, 41, 49, 57, - 2, 10, 18, 26, 3, 11, 19, 27, - 34, 42, 50, 58, 35, 43, 51, 59, - 4, 12, 20, 28, 5, 13, 21, 29, - 36, 44, 52, 60, 37, 45, 53, 61, - 6, 14, 22, 30, 7, 15, 23, 31, - 38, 46, 54, 62, 39, 47, 55, 63 -}; - -/* Huffman tables are shared with CODA */ -static const unsigned char luma_dc_table[] = { - 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, - 0x08, 0x09, 0x0a, 0x0b, -}; - -static const unsigned char chroma_dc_table[] = { - 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, - 0x08, 0x09, 0x0a, 0x0b, -}; - -static const unsigned char luma_ac_table[] = { - 0x00, 0x02, 0x01, 0x03, 0x03, 0x02, 0x04, 0x03, - 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7d, - 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, - 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, - 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08, - 0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0, - 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16, - 0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28, - 0x29, 0x2a, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, - 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, - 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, - 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, - 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, - 0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, - 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, - 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, - 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, - 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5, - 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4, - 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2, - 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, - 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, - 0xf9, 0xfa, -}; - -static const unsigned char chroma_ac_table[] = { - 0x00, 0x02, 0x01, 0x02, 0x04, 0x04, 0x03, 0x04, - 0x07, 0x05, 0x04, 0x04, 0x00, 0x01, 0x02, 0x77, - 0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21, - 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, - 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, - 0xa1, 0xb1, 0xc1, 0x09, 0x23, 0x33, 0x52, 0xf0, - 0x15, 0x62, 0x72, 0xd1, 0x0a, 0x16, 0x24, 0x34, - 0xe1, 0x25, 0xf1, 0x17, 0x18, 0x19, 0x1a, 0x26, - 0x27, 0x28, 0x29, 0x2a, 0x35, 0x36, 0x37, 0x38, - 0x39, 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, - 0x49, 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, - 0x59, 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, - 0x69, 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, - 0x79, 0x7a, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, - 0x88, 0x89, 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, - 0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, - 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, - 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, - 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, - 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, - 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, - 0xea, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, - 0xf9, 0xfa, -}; - -/* For simplicity, we keep a pre-formatted JPEG header, - * and we'll use fixed offsets to change the width, height - * quantization tables, etc. - */ -static const unsigned char hantro_jpeg_header[JPEG_HEADER_SIZE] = { - /* SOI */ - 0xff, 0xd8, - - /* DQT */ - 0xff, 0xdb, 0x00, 0x84, - - 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - - 0x01, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - - /* SOF */ - 0xff, 0xc0, 0x00, 0x11, 0x08, 0x00, 0xf0, 0x01, - 0x40, 0x03, 0x01, 0x22, 0x00, 0x02, 0x11, 0x01, - 0x03, 0x11, 0x01, - - /* DHT */ - 0xff, 0xc4, 0x00, 0x1f, 0x00, - - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, - - /* DHT */ - 0xff, 0xc4, 0x00, 0xb5, 0x10, - - 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - - /* DHT */ - 0xff, 0xc4, 0x00, 0x1f, 0x01, - - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, - - /* DHT */ - 0xff, 0xc4, 0x00, 0xb5, 0x11, - - 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - - /* SOS */ - 0xff, 0xda, 0x00, 0x0c, 0x03, 0x01, 0x00, 0x02, - 0x11, 0x03, 0x11, 0x00, 0x3f, 0x00, -}; - -static unsigned char jpeg_scale_qp(const unsigned char qp, int scale) -{ - unsigned int temp; - - temp = DIV_ROUND_CLOSEST((unsigned int)qp * scale, 100); - if (temp <= 0) - temp = 1; - if (temp > 255) - temp = 255; - - return (unsigned char)temp; -} - -static void -jpeg_scale_quant_table(unsigned char *file_q_tab, - unsigned char *reordered_q_tab, - const unsigned char *tab, int scale) -{ - int i; - - for (i = 0; i < 64; i++) { - file_q_tab[i] = jpeg_scale_qp(tab[zigzag[i]], scale); - reordered_q_tab[i] = jpeg_scale_qp(tab[hw_reorder[i]], scale); - } -} - -static void jpeg_set_quality(unsigned char *buffer, int quality) -{ - int scale; - - /* - * Non-linear scaling factor: - * [5,50] -> [1000..100], [51,100] -> [98..0] - */ - if (quality < 50) - scale = 5000 / quality; - else - scale = 200 - 2 * quality; - - jpeg_scale_quant_table(buffer + LUMA_QUANT_OFF, - luma_q_table_reordered, - luma_q_table, scale); - jpeg_scale_quant_table(buffer + CHROMA_QUANT_OFF, - chroma_q_table_reordered, - chroma_q_table, scale); -} - -unsigned char *hantro_jpeg_get_qtable(int index) -{ - if (index == 0) - return luma_q_table_reordered; - return chroma_q_table_reordered; -} - -void hantro_jpeg_header_assemble(struct hantro_jpeg_ctx *ctx) -{ - char *buf = ctx->buffer; - - memcpy(buf, hantro_jpeg_header, - sizeof(hantro_jpeg_header)); - - buf[HEIGHT_OFF + 0] = ctx->height >> 8; - buf[HEIGHT_OFF + 1] = ctx->height; - buf[WIDTH_OFF + 0] = ctx->width >> 8; - buf[WIDTH_OFF + 1] = ctx->width; - - memcpy(buf + HUFF_LUMA_DC_OFF, luma_dc_table, sizeof(luma_dc_table)); - memcpy(buf + HUFF_LUMA_AC_OFF, luma_ac_table, sizeof(luma_ac_table)); - memcpy(buf + HUFF_CHROMA_DC_OFF, chroma_dc_table, - sizeof(chroma_dc_table)); - memcpy(buf + HUFF_CHROMA_AC_OFF, chroma_ac_table, - sizeof(chroma_ac_table)); - - jpeg_set_quality(buf, ctx->quality); -} - -int hantro_jpeg_enc_init(struct hantro_ctx *ctx) -{ - ctx->jpeg_enc.bounce_buffer.size = - ctx->dst_fmt.plane_fmt[0].sizeimage - - ctx->vpu_dst_fmt->header_size; - - ctx->jpeg_enc.bounce_buffer.cpu = - dma_alloc_attrs(ctx->dev->dev, - ctx->jpeg_enc.bounce_buffer.size, - &ctx->jpeg_enc.bounce_buffer.dma, - GFP_KERNEL, - DMA_ATTR_ALLOC_SINGLE_PAGES); - if (!ctx->jpeg_enc.bounce_buffer.cpu) - return -ENOMEM; - - return 0; -} - -void hantro_jpeg_enc_exit(struct hantro_ctx *ctx) -{ - dma_free_attrs(ctx->dev->dev, - ctx->jpeg_enc.bounce_buffer.size, - ctx->jpeg_enc.bounce_buffer.cpu, - ctx->jpeg_enc.bounce_buffer.dma, - DMA_ATTR_ALLOC_SINGLE_PAGES); -} |