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dcraw: add panasonic v8 decoder.

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Port panasonic v8 decoder from libraw.

* Extract data required for the decoder from the panasonic custom exif
  tags
* Add panasonic v8 decoder
This commit is contained in:
Simone Gotti
2024-03-30 17:05:11 +01:00
parent 9c9b93ae61
commit 0d9bafdc88
3 changed files with 630 additions and 19 deletions
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38
rtengine/dcraw.h
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@@ -192,12 +192,6 @@ protected:
std::string RT_software;
double RT_baseline_exposure;
struct PanasonicRW2Info {
ushort bpp;
ushort encoding;
PanasonicRW2Info(): bpp(0), encoding(0) {}
};
PanasonicRW2Info RT_pana_info;
std::vector<GainMap> gainMaps;
public:
@@ -229,6 +223,29 @@ public:
short CR3_CTMDtag;
};
struct PanasonicRW2Info {
struct v8_tags_t
{
uint32_t tag39[6];
uint16_t tag3A[6];
uint16_t tag3B;
uint16_t initial[4];
uint16_t tag40a[17], tag40b[17], tag41[17];
uint16_t stripe_count; // 0x42
uint16_t tag43;
int64_t stripe_offsets[5]; //0x44
uint16_t stripe_left[5]; // 0x45
uint32_t stripe_compressed_size[5]; //0x46
uint16_t stripe_width[5]; //0x47
uint16_t stripe_height[5];
};
ushort bpp;
ushort encoding;
v8_tags_t v8tags;
PanasonicRW2Info(): bpp(0), encoding(0), v8tags{} {}
};
bool isBayer() const
{
return (filters != 0 && filters != 9);
@@ -250,9 +267,11 @@ public:
protected:
CanonCR3Data RT_canon_CR3_data;
CanonLevelsData RT_canon_levels_data;
PanasonicRW2Info RT_pana_info;
float cam_mul[4], pre_mul[4], cmatrix[3][4], rgb_cam[3][4];
void (DCraw::*write_thumb)();
@@ -411,7 +430,9 @@ void fuji_decode_strip (fuji_compressed_params* params, int cur_block, INT64 raw
void fuji_compressed_load_raw();
void fuji_decode_loop(fuji_compressed_params* common_info, int count, INT64* raw_block_offsets, unsigned *block_sizes, uchar *q_bases);
void parse_fuji_compressed_header();
void fuji_14bit_load_raw();
void fuji_14bit_load_raw();
void pana8_decode_loop(void *data);
bool pana8_decode_strip(void* data, int stream);
void pentax_load_raw();
void nikon_load_raw();
int nikon_is_compressed();
@@ -503,6 +524,7 @@ private:
void panasonicC6_load_raw();
void panasonicC7_load_raw();
void panasonicC8_load_raw();
void canon_rmf_load_raw();
void panasonic_load_raw();