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Make byte-float conversion threaded in compositor

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In fact, there's no need to get float buffer at all,
conversion could be done in pixel processor level
after interpolation.

It might give slightly worse interpolation results
(which i'm not sure would be visible by eye) but
it gives more than 2x speedup on my laptop on node
setups used for warping image.

--
svn merge -r58988:58989 ^/branches/soc-2011-tomato
This commit is contained in:
Sergey Sharybin
2013-08-16 10:01:09 +00:00
parent 970c80e473
commit a8353530be
3 changed files with 53 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files

76
source/blender/compositor/operations/COM_ImageOperation.cpp
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@@ -40,7 +40,8 @@ BaseImageOperation::BaseImageOperation() : NodeOperation()
{
this->m_image = NULL;
this->m_buffer = NULL;
this->m_imageBuffer = NULL;
this->m_imageFloatBuffer = NULL;
this->m_imageByteBuffer = NULL;
this->m_imageUser = NULL;
this->m_imagewidth = 0;
this->m_imageheight = 0;
@@ -70,10 +71,6 @@ ImBuf *BaseImageOperation::getImBuf()
BKE_image_release_ibuf(this->m_image, ibuf, NULL);
return NULL;
}
if (ibuf->rect_float == NULL) {
IMB_float_from_rect(ibuf);
}
return ibuf;
}
@@ -83,7 +80,8 @@ void BaseImageOperation::initExecution()
ImBuf *stackbuf = getImBuf();
this->m_buffer = stackbuf;
if (stackbuf) {
this->m_imageBuffer = stackbuf->rect_float;
this->m_imageFloatBuffer = stackbuf->rect_float;
this->m_imageByteBuffer = stackbuf->rect;
this->m_depthBuffer = stackbuf->zbuf_float;
this->m_imagewidth = stackbuf->x;
this->m_imageheight = stackbuf->y;
@@ -93,7 +91,8 @@ void BaseImageOperation::initExecution()
void BaseImageOperation::deinitExecution()
{
this->m_imageBuffer = NULL;
this->m_imageFloatBuffer = NULL;
this->m_imageByteBuffer = NULL;
BKE_image_release_ibuf(this->m_image, this->m_buffer, NULL);
}
@@ -112,23 +111,48 @@ void BaseImageOperation::determineResolution(unsigned int resolution[2], unsigne
BKE_image_release_ibuf(this->m_image, stackbuf, NULL);
}
static void sampleImageAtLocation(ImBuf *ibuf, float x, float y, PixelSampler sampler, bool make_linear_rgb, float color[4])
{
if (ibuf->rect_float) {
switch (sampler) {
case COM_PS_NEAREST:
nearest_interpolation_color(ibuf, NULL, color, x, y);
break;
case COM_PS_BILINEAR:
bilinear_interpolation_color(ibuf, NULL, color, x, y);
break;
case COM_PS_BICUBIC:
bicubic_interpolation_color(ibuf, NULL, color, x, y);
break;
}
}
else {
unsigned char byte_color[4];
switch (sampler) {
case COM_PS_NEAREST:
nearest_interpolation_color(ibuf, byte_color, NULL, x, y);
break;
case COM_PS_BILINEAR:
bilinear_interpolation_color(ibuf, byte_color, NULL, x, y);
break;
case COM_PS_BICUBIC:
bicubic_interpolation_color(ibuf, byte_color, NULL, x, y);
break;
}
rgba_uchar_to_float(color, byte_color);
if (make_linear_rgb) {
IMB_colormanagement_colorspace_to_scene_linear_v4(color, FALSE, ibuf->rect_colorspace);
}
}
}
void ImageOperation::executePixel(float output[4], float x, float y, PixelSampler sampler)
{
if (this->m_imageBuffer == NULL || x < 0 || y < 0 || x >= this->getWidth() || y >= this->getHeight() ) {
if ((this->m_imageFloatBuffer == NULL && this->m_imageByteBuffer == NULL) || x < 0 || y < 0 || x >= this->getWidth() || y >= this->getHeight() ) {
zero_v4(output);
}
else {
switch (sampler) {
case COM_PS_NEAREST:
nearest_interpolation_color(this->m_buffer, NULL, output, x, y);
break;
case COM_PS_BILINEAR:
bilinear_interpolation_color(this->m_buffer, NULL, output, x, y);
break;
case COM_PS_BICUBIC:
bicubic_interpolation_color(this->m_buffer, NULL, output, x, y);
break;
}
sampleImageAtLocation(this->m_buffer, x, y, sampler, true, output);
}
}
@@ -136,22 +160,12 @@ void ImageAlphaOperation::executePixel(float output[4], float x, float y, PixelS
{
float tempcolor[4];
if (this->m_imageBuffer == NULL || x < 0 || y < 0 || x >= this->getWidth() || y >= this->getHeight() ) {
if ((this->m_imageFloatBuffer == NULL && this->m_imageByteBuffer == NULL) || x < 0 || y < 0 || x >= this->getWidth() || y >= this->getHeight() ) {
output[0] = 0.0f;
}
else {
tempcolor[3] = 1.0f;
switch (sampler) {
case COM_PS_NEAREST:
nearest_interpolation_color(this->m_buffer, NULL, tempcolor, x, y);
break;
case COM_PS_BILINEAR:
bilinear_interpolation_color(this->m_buffer, NULL, tempcolor, x, y);
break;
case COM_PS_BICUBIC:
bicubic_interpolation_color(this->m_buffer, NULL, tempcolor, x, y);
break;
}
sampleImageAtLocation(this->m_buffer, x, y, sampler, false, tempcolor);
output[0] = tempcolor[3];
}
}