diff options
Diffstat (limited to 'source/blender/compositor/operations/COM_DilateErodeOperation.cc')
| -rw-r--r-- | source/blender/compositor/operations/COM_DilateErodeOperation.cc | 570 |
1 files changed, 570 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_DilateErodeOperation.cc b/source/blender/compositor/operations/COM_DilateErodeOperation.cc new file mode 100644 index 00000000000..fbe9fe8ea27 --- /dev/null +++ b/source/blender/compositor/operations/COM_DilateErodeOperation.cc @@ -0,0 +1,570 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * Copyright 2011, Blender Foundation. + */ + +#include "COM_DilateErodeOperation.h" +#include "BLI_math.h" +#include "COM_OpenCLDevice.h" + +#include "MEM_guardedalloc.h" + +// DilateErode Distance Threshold +DilateErodeThresholdOperation::DilateErodeThresholdOperation() +{ + this->addInputSocket(COM_DT_VALUE); + this->addOutputSocket(COM_DT_VALUE); + this->setComplex(true); + this->m_inputProgram = nullptr; + this->m_inset = 0.0f; + this->m__switch = 0.5f; + this->m_distance = 0.0f; +} +void DilateErodeThresholdOperation::initExecution() +{ + this->m_inputProgram = this->getInputSocketReader(0); + if (this->m_distance < 0.0f) { + this->m_scope = -this->m_distance + this->m_inset; + } + else { + if (this->m_inset * 2 > this->m_distance) { + this->m_scope = MAX2(this->m_inset * 2 - this->m_distance, this->m_distance); + } + else { + this->m_scope = this->m_distance; + } + } + if (this->m_scope < 3) { + this->m_scope = 3; + } +} + +void *DilateErodeThresholdOperation::initializeTileData(rcti * /*rect*/) +{ + void *buffer = this->m_inputProgram->initializeTileData(nullptr); + return buffer; +} + +void DilateErodeThresholdOperation::executePixel(float output[4], int x, int y, void *data) +{ + float inputValue[4]; + const float sw = this->m__switch; + const float distance = this->m_distance; + float pixelvalue; + const float rd = this->m_scope * this->m_scope; + const float inset = this->m_inset; + float mindist = rd * 2; + + MemoryBuffer *inputBuffer = (MemoryBuffer *)data; + float *buffer = inputBuffer->getBuffer(); + rcti *rect = inputBuffer->getRect(); + const int minx = MAX2(x - this->m_scope, rect->xmin); + const int miny = MAX2(y - this->m_scope, rect->ymin); + const int maxx = MIN2(x + this->m_scope, rect->xmax); + const int maxy = MIN2(y + this->m_scope, rect->ymax); + const int bufferWidth = BLI_rcti_size_x(rect); + int offset; + + inputBuffer->read(inputValue, x, y); + if (inputValue[0] > sw) { + for (int yi = miny; yi < maxy; yi++) { + const float dy = yi - y; + offset = ((yi - rect->ymin) * bufferWidth + (minx - rect->xmin)); + for (int xi = minx; xi < maxx; xi++) { + if (buffer[offset] < sw) { + const float dx = xi - x; + const float dis = dx * dx + dy * dy; + mindist = MIN2(mindist, dis); + } + offset++; + } + } + pixelvalue = -sqrtf(mindist); + } + else { + for (int yi = miny; yi < maxy; yi++) { + const float dy = yi - y; + offset = ((yi - rect->ymin) * bufferWidth + (minx - rect->xmin)); + for (int xi = minx; xi < maxx; xi++) { + if (buffer[offset] > sw) { + const float dx = xi - x; + const float dis = dx * dx + dy * dy; + mindist = MIN2(mindist, dis); + } + offset++; + } + } + pixelvalue = sqrtf(mindist); + } + + if (distance > 0.0f) { + const float delta = distance - pixelvalue; + if (delta >= 0.0f) { + if (delta >= inset) { + output[0] = 1.0f; + } + else { + output[0] = delta / inset; + } + } + else { + output[0] = 0.0f; + } + } + else { + const float delta = -distance + pixelvalue; + if (delta < 0.0f) { + if (delta < -inset) { + output[0] = 1.0f; + } + else { + output[0] = (-delta) / inset; + } + } + else { + output[0] = 0.0f; + } + } +} + +void DilateErodeThresholdOperation::deinitExecution() +{ + this->m_inputProgram = nullptr; +} + +bool DilateErodeThresholdOperation::determineDependingAreaOfInterest( + rcti *input, ReadBufferOperation *readOperation, rcti *output) +{ + rcti newInput; + + newInput.xmax = input->xmax + this->m_scope; + newInput.xmin = input->xmin - this->m_scope; + newInput.ymax = input->ymax + this->m_scope; + newInput.ymin = input->ymin - this->m_scope; + + return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output); +} + +// Dilate Distance +DilateDistanceOperation::DilateDistanceOperation() +{ + this->addInputSocket(COM_DT_VALUE); + this->addOutputSocket(COM_DT_VALUE); + this->setComplex(true); + this->m_inputProgram = nullptr; + this->m_distance = 0.0f; + this->setOpenCL(true); +} +void DilateDistanceOperation::initExecution() +{ + this->m_inputProgram = this->getInputSocketReader(0); + this->m_scope = this->m_distance; + if (this->m_scope < 3) { + this->m_scope = 3; + } +} + +void *DilateDistanceOperation::initializeTileData(rcti * /*rect*/) +{ + void *buffer = this->m_inputProgram->initializeTileData(nullptr); + return buffer; +} + +void DilateDistanceOperation::executePixel(float output[4], int x, int y, void *data) +{ + const float distance = this->m_distance; + const float mindist = distance * distance; + + MemoryBuffer *inputBuffer = (MemoryBuffer *)data; + float *buffer = inputBuffer->getBuffer(); + rcti *rect = inputBuffer->getRect(); + const int minx = MAX2(x - this->m_scope, rect->xmin); + const int miny = MAX2(y - this->m_scope, rect->ymin); + const int maxx = MIN2(x + this->m_scope, rect->xmax); + const int maxy = MIN2(y + this->m_scope, rect->ymax); + const int bufferWidth = BLI_rcti_size_x(rect); + int offset; + + float value = 0.0f; + + for (int yi = miny; yi < maxy; yi++) { + const float dy = yi - y; + offset = ((yi - rect->ymin) * bufferWidth + (minx - rect->xmin)); + for (int xi = minx; xi < maxx; xi++) { + const float dx = xi - x; + const float dis = dx * dx + dy * dy; + if (dis <= mindist) { + value = MAX2(buffer[offset], value); + } + offset++; + } + } + output[0] = value; +} + +void DilateDistanceOperation::deinitExecution() +{ + this->m_inputProgram = nullptr; +} + +bool DilateDistanceOperation::determineDependingAreaOfInterest(rcti *input, + ReadBufferOperation *readOperation, + rcti *output) +{ + rcti newInput; + + newInput.xmax = input->xmax + this->m_scope; + newInput.xmin = input->xmin - this->m_scope; + newInput.ymax = input->ymax + this->m_scope; + newInput.ymin = input->ymin - this->m_scope; + + return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output); +} + +void DilateDistanceOperation::executeOpenCL(OpenCLDevice *device, + MemoryBuffer *outputMemoryBuffer, + cl_mem clOutputBuffer, + MemoryBuffer **inputMemoryBuffers, + std::list<cl_mem> *clMemToCleanUp, + std::list<cl_kernel> * /*clKernelsToCleanUp*/) +{ + cl_kernel dilateKernel = device->COM_clCreateKernel("dilateKernel", nullptr); + + cl_int distanceSquared = this->m_distance * this->m_distance; + cl_int scope = this->m_scope; + + device->COM_clAttachMemoryBufferToKernelParameter( + dilateKernel, 0, 2, clMemToCleanUp, inputMemoryBuffers, this->m_inputProgram); + device->COM_clAttachOutputMemoryBufferToKernelParameter(dilateKernel, 1, clOutputBuffer); + device->COM_clAttachMemoryBufferOffsetToKernelParameter(dilateKernel, 3, outputMemoryBuffer); + clSetKernelArg(dilateKernel, 4, sizeof(cl_int), &scope); + clSetKernelArg(dilateKernel, 5, sizeof(cl_int), &distanceSquared); + device->COM_clAttachSizeToKernelParameter(dilateKernel, 6, this); + device->COM_clEnqueueRange(dilateKernel, outputMemoryBuffer, 7, this); +} + +// Erode Distance +ErodeDistanceOperation::ErodeDistanceOperation() : DilateDistanceOperation() +{ + /* pass */ +} + +void ErodeDistanceOperation::executePixel(float output[4], int x, int y, void *data) +{ + const float distance = this->m_distance; + const float mindist = distance * distance; + + MemoryBuffer *inputBuffer = (MemoryBuffer *)data; + float *buffer = inputBuffer->getBuffer(); + rcti *rect = inputBuffer->getRect(); + const int minx = MAX2(x - this->m_scope, rect->xmin); + const int miny = MAX2(y - this->m_scope, rect->ymin); + const int maxx = MIN2(x + this->m_scope, rect->xmax); + const int maxy = MIN2(y + this->m_scope, rect->ymax); + const int bufferWidth = BLI_rcti_size_x(rect); + int offset; + + float value = 1.0f; + + for (int yi = miny; yi < maxy; yi++) { + const float dy = yi - y; + offset = ((yi - rect->ymin) * bufferWidth + (minx - rect->xmin)); + for (int xi = minx; xi < maxx; xi++) { + const float dx = xi - x; + const float dis = dx * dx + dy * dy; + if (dis <= mindist) { + value = MIN2(buffer[offset], value); + } + offset++; + } + } + output[0] = value; +} + +void ErodeDistanceOperation::executeOpenCL(OpenCLDevice *device, + MemoryBuffer *outputMemoryBuffer, + cl_mem clOutputBuffer, + MemoryBuffer **inputMemoryBuffers, + std::list<cl_mem> *clMemToCleanUp, + std::list<cl_kernel> * /*clKernelsToCleanUp*/) +{ + cl_kernel erodeKernel = device->COM_clCreateKernel("erodeKernel", nullptr); + + cl_int distanceSquared = this->m_distance * this->m_distance; + cl_int scope = this->m_scope; + + device->COM_clAttachMemoryBufferToKernelParameter( + erodeKernel, 0, 2, clMemToCleanUp, inputMemoryBuffers, this->m_inputProgram); + device->COM_clAttachOutputMemoryBufferToKernelParameter(erodeKernel, 1, clOutputBuffer); + device->COM_clAttachMemoryBufferOffsetToKernelParameter(erodeKernel, 3, outputMemoryBuffer); + clSetKernelArg(erodeKernel, 4, sizeof(cl_int), &scope); + clSetKernelArg(erodeKernel, 5, sizeof(cl_int), &distanceSquared); + device->COM_clAttachSizeToKernelParameter(erodeKernel, 6, this); + device->COM_clEnqueueRange(erodeKernel, outputMemoryBuffer, 7, this); +} + +// Dilate step +DilateStepOperation::DilateStepOperation() +{ + this->addInputSocket(COM_DT_VALUE); + this->addOutputSocket(COM_DT_VALUE); + this->setComplex(true); + this->m_inputProgram = nullptr; +} +void DilateStepOperation::initExecution() +{ + this->m_inputProgram = this->getInputSocketReader(0); +} + +// small helper to pass data from initializeTileData to executePixel +struct tile_info { + rcti rect; + int width; + float *buffer; +}; + +static tile_info *create_cache(int xmin, int xmax, int ymin, int ymax) +{ + tile_info *result = (tile_info *)MEM_mallocN(sizeof(tile_info), "dilate erode tile"); + result->rect.xmin = xmin; + result->rect.xmax = xmax; + result->rect.ymin = ymin; + result->rect.ymax = ymax; + result->width = xmax - xmin; + result->buffer = (float *)MEM_callocN(sizeof(float) * (ymax - ymin) * result->width, + "dilate erode cache"); + return result; +} + +void *DilateStepOperation::initializeTileData(rcti *rect) +{ + MemoryBuffer *tile = (MemoryBuffer *)this->m_inputProgram->initializeTileData(nullptr); + int x, y, i; + int width = tile->getWidth(); + int height = tile->getHeight(); + float *buffer = tile->getBuffer(); + + int half_window = this->m_iterations; + int window = half_window * 2 + 1; + + int xmin = MAX2(0, rect->xmin - half_window); + int ymin = MAX2(0, rect->ymin - half_window); + int xmax = MIN2(width, rect->xmax + half_window); + int ymax = MIN2(height, rect->ymax + half_window); + + int bwidth = rect->xmax - rect->xmin; + int bheight = rect->ymax - rect->ymin; + + // Note: Cache buffer has original tilesize width, but new height. + // We have to calculate the additional rows in the first pass, + // to have valid data available for the second pass. + tile_info *result = create_cache(rect->xmin, rect->xmax, ymin, ymax); + float *rectf = result->buffer; + + // temp holds maxima for every step in the algorithm, buf holds a + // single row or column of input values, padded with FLT_MAX's to + // simplify the logic. + float *temp = (float *)MEM_mallocN(sizeof(float) * (2 * window - 1), "dilate erode temp"); + float *buf = (float *)MEM_mallocN(sizeof(float) * (MAX2(bwidth, bheight) + 5 * half_window), + "dilate erode buf"); + + // The following is based on the van Herk/Gil-Werman algorithm for morphology operations. + // first pass, horizontal dilate/erode + for (y = ymin; y < ymax; y++) { + for (x = 0; x < bwidth + 5 * half_window; x++) { + buf[x] = -FLT_MAX; + } + for (x = xmin; x < xmax; x++) { + buf[x - rect->xmin + window - 1] = buffer[(y * width + x)]; + } + + for (i = 0; i < (bwidth + 3 * half_window) / window; i++) { + int start = (i + 1) * window - 1; + + temp[window - 1] = buf[start]; + for (x = 1; x < window; x++) { + temp[window - 1 - x] = MAX2(temp[window - x], buf[start - x]); + temp[window - 1 + x] = MAX2(temp[window + x - 2], buf[start + x]); + } + + start = half_window + (i - 1) * window + 1; + for (x = -MIN2(0, start); x < window - MAX2(0, start + window - bwidth); x++) { + rectf[bwidth * (y - ymin) + (start + x)] = MAX2(temp[x], temp[x + window - 1]); + } + } + } + + // second pass, vertical dilate/erode + for (x = 0; x < bwidth; x++) { + for (y = 0; y < bheight + 5 * half_window; y++) { + buf[y] = -FLT_MAX; + } + for (y = ymin; y < ymax; y++) { + buf[y - rect->ymin + window - 1] = rectf[(y - ymin) * bwidth + x]; + } + + for (i = 0; i < (bheight + 3 * half_window) / window; i++) { + int start = (i + 1) * window - 1; + + temp[window - 1] = buf[start]; + for (y = 1; y < window; y++) { + temp[window - 1 - y] = MAX2(temp[window - y], buf[start - y]); + temp[window - 1 + y] = MAX2(temp[window + y - 2], buf[start + y]); + } + + start = half_window + (i - 1) * window + 1; + for (y = -MIN2(0, start); y < window - MAX2(0, start + window - bheight); y++) { + rectf[bwidth * (y + start + (rect->ymin - ymin)) + x] = MAX2(temp[y], + temp[y + window - 1]); + } + } + } + + MEM_freeN(temp); + MEM_freeN(buf); + + return result; +} + +void DilateStepOperation::executePixel(float output[4], int x, int y, void *data) +{ + tile_info *tile = (tile_info *)data; + int nx = x - tile->rect.xmin; + int ny = y - tile->rect.ymin; + output[0] = tile->buffer[tile->width * ny + nx]; +} + +void DilateStepOperation::deinitExecution() +{ + this->m_inputProgram = nullptr; +} + +void DilateStepOperation::deinitializeTileData(rcti * /*rect*/, void *data) +{ + tile_info *tile = (tile_info *)data; + MEM_freeN(tile->buffer); + MEM_freeN(tile); +} + +bool DilateStepOperation::determineDependingAreaOfInterest(rcti *input, + ReadBufferOperation *readOperation, + rcti *output) +{ + rcti newInput; + int it = this->m_iterations; + newInput.xmax = input->xmax + it; + newInput.xmin = input->xmin - it; + newInput.ymax = input->ymax + it; + newInput.ymin = input->ymin - it; + + return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output); +} + +// Erode step +ErodeStepOperation::ErodeStepOperation() : DilateStepOperation() +{ + /* pass */ +} + +void *ErodeStepOperation::initializeTileData(rcti *rect) +{ + MemoryBuffer *tile = (MemoryBuffer *)this->m_inputProgram->initializeTileData(nullptr); + int x, y, i; + int width = tile->getWidth(); + int height = tile->getHeight(); + float *buffer = tile->getBuffer(); + + int half_window = this->m_iterations; + int window = half_window * 2 + 1; + + int xmin = MAX2(0, rect->xmin - half_window); + int ymin = MAX2(0, rect->ymin - half_window); + int xmax = MIN2(width, rect->xmax + half_window); + int ymax = MIN2(height, rect->ymax + half_window); + + int bwidth = rect->xmax - rect->xmin; + int bheight = rect->ymax - rect->ymin; + + // Note: Cache buffer has original tilesize width, but new height. + // We have to calculate the additional rows in the first pass, + // to have valid data available for the second pass. + tile_info *result = create_cache(rect->xmin, rect->xmax, ymin, ymax); + float *rectf = result->buffer; + + // temp holds maxima for every step in the algorithm, buf holds a + // single row or column of input values, padded with FLT_MAX's to + // simplify the logic. + float *temp = (float *)MEM_mallocN(sizeof(float) * (2 * window - 1), "dilate erode temp"); + float *buf = (float *)MEM_mallocN(sizeof(float) * (MAX2(bwidth, bheight) + 5 * half_window), + "dilate erode buf"); + + // The following is based on the van Herk/Gil-Werman algorithm for morphology operations. + // first pass, horizontal dilate/erode + for (y = ymin; y < ymax; y++) { + for (x = 0; x < bwidth + 5 * half_window; x++) { + buf[x] = FLT_MAX; + } + for (x = xmin; x < xmax; x++) { + buf[x - rect->xmin + window - 1] = buffer[(y * width + x)]; + } + + for (i = 0; i < (bwidth + 3 * half_window) / window; i++) { + int start = (i + 1) * window - 1; + + temp[window - 1] = buf[start]; + for (x = 1; x < window; x++) { + temp[window - 1 - x] = MIN2(temp[window - x], buf[start - x]); + temp[window - 1 + x] = MIN2(temp[window + x - 2], buf[start + x]); + } + + start = half_window + (i - 1) * window + 1; + for (x = -MIN2(0, start); x < window - MAX2(0, start + window - bwidth); x++) { + rectf[bwidth * (y - ymin) + (start + x)] = MIN2(temp[x], temp[x + window - 1]); + } + } + } + + // second pass, vertical dilate/erode + for (x = 0; x < bwidth; x++) { + for (y = 0; y < bheight + 5 * half_window; y++) { + buf[y] = FLT_MAX; + } + for (y = ymin; y < ymax; y++) { + buf[y - rect->ymin + window - 1] = rectf[(y - ymin) * bwidth + x]; + } + + for (i = 0; i < (bheight + 3 * half_window) / window; i++) { + int start = (i + 1) * window - 1; + + temp[window - 1] = buf[start]; + for (y = 1; y < window; y++) { + temp[window - 1 - y] = MIN2(temp[window - y], buf[start - y]); + temp[window - 1 + y] = MIN2(temp[window + y - 2], buf[start + y]); + } + + start = half_window + (i - 1) * window + 1; + for (y = -MIN2(0, start); y < window - MAX2(0, start + window - bheight); y++) { + rectf[bwidth * (y + start + (rect->ymin - ymin)) + x] = MIN2(temp[y], + temp[y + window - 1]); + } + } + } + + MEM_freeN(temp); + MEM_freeN(buf); + + return result; +} |