45 virtual bool read(uint8_t resno,
grk_rect32 window, int32_t* dest,
const uint32_t destChunkY,
46 const uint32_t destChunkX) = 0;
51 const uint32_t srcChunkY,
const uint32_t srcChunkX) = 0;
62 void alloc(uint32_t block_area,
bool zeroOutBuffer)
64 data =
new int32_t[block_area];
66 memset(
data, 0, block_area *
sizeof(int32_t));
70template<u
int32_t LBW, u
int32_t LBH>
78 throw std::runtime_error(
"invalid window for sparse canvas");
82 for(uint64_t i = 0; i < blockCount; ++i)
98 bool read(uint8_t resno,
grk_rect32 window, int32_t* dest,
const uint32_t destChunkY,
99 const uint32_t destChunkX)
101 return readWrite(resno, window, dest, destChunkY, destChunkX,
true);
103 bool write(uint8_t resno,
grk_rect32 window,
const int32_t* src,
const uint32_t srcChunkY,
104 const uint32_t srcChunkX)
106 return readWrite(resno, window, (int32_t*)src, srcChunkY, srcChunkX,
false);
112 uint32_t blockWinHeight = 0;
113 uint32_t gridY = win.
y0 >> LBH;
114 for(uint32_t y = win.
y0; y < win.
y1; gridY++, y += blockWinHeight)
118 blockWinHeight = (std::min<uint32_t>)(blockWinHeight, win.
y1 - y);
119 uint32_t gridX = win.
x0 >> LBW;
120 uint32_t blockWinWidth = 0;
121 for(uint32_t x = win.
x0; x < win.
x1; gridX++, x += blockWinWidth)
125 blockWinWidth = (std::min<uint32_t>)(blockWinWidth, win.
x1 - x);
128 GRK_WARN(
"sparse canvas : attempt to allocate a block (%u,%u) outside block "
129 "grid bounds (%u,%u,%u,%u)",
133 auto srcBlock =
getBlock(gridX, gridY);
161 const uint32_t spacingY,
bool isReadOperation)
165 assert(!isReadOperation || buf);
169 GRK_WARN(
"Sparse canvas @ res %u, attempt to read/write invalid window (%u,%u,%u,%u) "
170 "for bounds (%u,%u,%u,%u).",
175 assert(spacingY != 0 || win.
height() == 1);
176 assert((spacingY <= 1 && spacingX >= 1) || (spacingY >= 1 && spacingX == 1));
178 uint32_t gridY = win.
y0 >> LBH;
179 uint32_t blockWinHeight = 0;
180 for(uint32_t y = win.
y0; y < win.
y1; gridY++, y += blockWinHeight)
184 uint32_t blockOffsetY =
blockHeight - blockWinHeight;
185 blockWinHeight = (std::min<uint32_t>)(blockWinHeight, win.
y1 - y);
186 uint32_t gridX = win.
x0 >> LBW;
187 uint32_t blockWinWidth = 0;
188 for(uint32_t x = win.
x0; x < win.
x1; gridX++, x += blockWinWidth)
192 uint32_t blockOffsetX =
blockWidth - blockWinWidth;
193 blockWinWidth = (std::min<uint32_t>)(blockWinWidth, win.
x1 - x);
196 GRK_WARN(
"sparse canvas @ resno %u, Attempt to access a block (%u,%u) outside "
198 resno, gridX, gridY);
201 auto srcBlock =
getBlock(gridX, gridY);
204 GRK_WARN(
"sparse canvas @ resno %u, %s op: missing block (%u,%u,%u,%u) for %s "
205 "(%u,%u,%u,%u). Skipping.",
206 resno, isReadOperation ?
"read" :
"write",
210 isReadOperation ?
"read" :
"write", win.
x0, win.
y0, win.
x1, win.
y1);
215 auto src = srcBlock->data + ((uint64_t)blockOffsetY << LBW) + blockOffsetX;
216 auto dest = buf + (y - win.
y0) * spacingY + (x - win.
x0) * spacingX;
217 for(uint32_t blockY = 0; blockY < blockWinHeight; blockY++)
219 uint64_t destInd = 0;
220 for(uint32_t blockX = 0; blockX < blockWinWidth; blockX++)
222#ifdef GRK_DEBUG_VALGRIND
223 size_t val = grk_memcheck<int32_t>(src + blockX, 1);
224 if(val != grk_mem_ok)
225 GRK_ERROR(
"sparse canvas @resno %u, read block(%u,%u) : "
226 "uninitialized at location (%u,%u)",
227 resno, gridX, gridY, x + blockX, y_);
229 dest[destInd] = src[blockX];
238 const int32_t* src =
nullptr;
240 src = buf + (y - win.
y0) * spacingY + (x - win.
x0) * spacingX;
241 auto dest = srcBlock->data + ((uint64_t)blockOffsetY << LBW) + blockOffsetX;
242 for(uint32_t blockY = 0; blockY < blockWinHeight; blockY++)
245 for(uint32_t blockX = 0; blockX < blockWinWidth; blockX++)
247#ifdef GRK_DEBUG_VALGRIND
250 grk_pt32 pt((uint32_t)(x + blockX), y_);
251 size_t val = grk_memcheck<int32_t>(src + srcInd, 1);
252 if(val != grk_mem_ok)
253 GRK_ERROR(
"sparse canvas @ resno %u, write block(%u,%u): "
254 "uninitialized at location (%u,%u)",
255 resno, gridX, gridY, x + blockX, y_);
258 dest[blockX] = src ? src[srcInd] : 0;
Definition: SparseCanvas.h:39
virtual ~ISparseCanvas()=default
virtual bool alloc(grk_rect32 window, bool zeroOutBuffer)=0
virtual bool read(uint8_t resno, grk_rect32 window, int32_t *dest, const uint32_t destChunkY, const uint32_t destChunkX)=0
Read window of data into dest buffer.
virtual bool write(uint8_t resno, grk_rect32 window, const int32_t *src, const uint32_t srcChunkY, const uint32_t srcChunkX)=0
Write window of data from src buffer.
Definition: SparseCanvas.h:72
SparseBlock * getBlock(uint32_t block_x, uint32_t block_y)
Definition: SparseCanvas.h:150
grk_rect32 bounds
Definition: SparseCanvas.h:275
SparseCanvas(uint32_t width, uint32_t height)
Definition: SparseCanvas.h:85
const uint32_t blockWidth
Definition: SparseCanvas.h:272
bool alloc(grk_rect32 win, bool zeroOutBuffer)
Definition: SparseCanvas.h:108
SparseBlock ** blocks
Definition: SparseCanvas.h:274
bool readWrite(uint8_t resno, grk_rect32 win, int32_t *buf, const uint32_t spacingX, const uint32_t spacingY, bool isReadOperation)
Definition: SparseCanvas.h:160
~SparseCanvas()
Definition: SparseCanvas.h:86
bool read(uint8_t resno, grk_rect32 window, int32_t *dest, const uint32_t destChunkY, const uint32_t destChunkX)
Read window of data into dest buffer.
Definition: SparseCanvas.h:98
SparseCanvas(grk_rect32 bds)
Definition: SparseCanvas.h:74
bool write(uint8_t resno, grk_rect32 window, const int32_t *src, const uint32_t srcChunkY, const uint32_t srcChunkX)
Write window of data from src buffer.
Definition: SparseCanvas.h:103
const uint32_t blockHeight
Definition: SparseCanvas.h:273
grk_rect32 grid
Definition: SparseCanvas.h:276
bool isWindowValid(grk_rect32 win)
Definition: SparseCanvas.h:155
Copyright (C) 2016-2023 Grok Image Compression Inc.
Definition: ICacheable.h:20
void GRK_ERROR(const char *fmt,...)
Definition: logger.cpp:58
void GRK_WARN(const char *fmt,...)
Definition: logger.cpp:49
Definition: SparseCanvas.h:56
SparseBlock(void)
Definition: SparseCanvas.h:57
void alloc(uint32_t block_area, bool zeroOutBuffer)
Definition: SparseCanvas.h:62
int32_t * data
Definition: SparseCanvas.h:68
~SparseBlock()
Definition: SparseCanvas.h:58
uint64_t area(void) const
Definition: geometry.h:331
T width() const
Definition: geometry.h:335
T y1
Definition: geometry.h:124
T x0
Definition: geometry.h:124
T x1
Definition: geometry.h:124
T height() const
Definition: geometry.h:339
bool valid(void) const
Definition: geometry.h:185
bool contains(grk_pt< T > pt)
Definition: geometry.h:193
T y0
Definition: geometry.h:124
grk_rect< T > scaleDownPow2(uint32_t powx, uint32_t powy) const
Definition: geometry.h:252