From ec4f021d1cf9650582bb698d31fbedeccbb8f7c5 Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Thu, 12 Dec 2019 15:02:53 +0100 Subject: [PATCH] media: coda: jpeg: merge Huffman table bits and values The Huffman bits tables are always 16 bytes long, and they are always followed directly by the values tables, both in hardware and in JPEG files. Just merge the two tables. Signed-off-by: Philipp Zabel Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/coda/coda-jpeg.c | 40 ++++++++++--------------- 1 file changed, 16 insertions(+), 24 deletions(-) diff --git a/drivers/media/platform/coda/coda-jpeg.c b/drivers/media/platform/coda/coda-jpeg.c index bf61a3ecc580..27e20aee1a8c 100644 --- a/drivers/media/platform/coda/coda-jpeg.c +++ b/drivers/media/platform/coda/coda-jpeg.c @@ -19,32 +19,29 @@ * chrominance from JPEG ITU-T.81 (ISO/IEC 10918-1) Annex K.3 */ -static const unsigned char luma_dc_bits[16] = { +static const unsigned char luma_dc[16 + 12] = { + /* bits */ 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -}; - -static const unsigned char luma_dc_value[12] = { + /* values */ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, }; -static const unsigned char chroma_dc_bits[16] = { +static const unsigned char chroma_dc[16 + 12] = { + /* bits */ 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, -}; - -static const unsigned char chroma_dc_value[12] = { + /* values */ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, }; -static const unsigned char luma_ac_bits[16] = { +static const unsigned char luma_ac[16 + 162 + 2] = { + /* bits */ 0x00, 0x02, 0x01, 0x03, 0x03, 0x02, 0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7d, -}; - -static const unsigned char luma_ac_value[162 + 2] = { + /* values */ 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08, @@ -68,12 +65,11 @@ static const unsigned char luma_ac_value[162 + 2] = { 0xf9, 0xfa, /* padded to 32-bit */ }; -static const unsigned char chroma_ac_bits[16] = { +static const unsigned char chroma_ac[16 + 162 + 2] = { + /* bits */ 0x00, 0x02, 0x01, 0x02, 0x04, 0x04, 0x03, 0x04, 0x07, 0x05, 0x04, 0x04, 0x00, 0x01, 0x02, 0x77, -}; - -static const unsigned char chroma_ac_value[162 + 2] = { + /* values */ 0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, @@ -148,14 +144,10 @@ int coda_jpeg_write_tables(struct coda_ctx *ctx) { int i; static const struct coda_memcpy_desc huff[8] = { - { 0, luma_dc_bits, sizeof(luma_dc_bits) }, - { 16, luma_dc_value, sizeof(luma_dc_value) }, - { 32, luma_ac_bits, sizeof(luma_ac_bits) }, - { 48, luma_ac_value, sizeof(luma_ac_value) }, - { 216, chroma_dc_bits, sizeof(chroma_dc_bits) }, - { 232, chroma_dc_value, sizeof(chroma_dc_value) }, - { 248, chroma_ac_bits, sizeof(chroma_ac_bits) }, - { 264, chroma_ac_value, sizeof(chroma_ac_value) }, + { 0, luma_dc, sizeof(luma_dc) }, + { 32, luma_ac, sizeof(luma_ac) }, + { 216, chroma_dc, sizeof(chroma_dc) }, + { 248, chroma_ac, sizeof(chroma_ac) }, }; struct coda_memcpy_desc qmat[3] = { { 512, ctx->params.jpeg_qmat_tab[0], 64 },