f5f7024040
New ("fullframe") CPU compositor backend is being used now, and all the code
related to "tiled" CPU compositor is just never used anymore. The new backend
is faster, uses less memory, better matches GPU compositor, etc.
TL;DR: 20 thousand lines of code gone.
This commit:
- Removes various bits and pieces related to "tiled" compositor (execution
groups, one-pixel-at-a-time node processing, read/write buffer operations
related to node execution groups).
- "GPU" (OpenCL) execution device, that was only used by several nodes of
the tiled compositor.
- With that, remove CLEW external library too, since nothing within Blender
uses OpenCL directly anymore.
Pull Request: https://projects.blender.org/blender/blender/pulls/118819
84 lines
2.7 KiB
C++
84 lines
2.7 KiB
C++
/* SPDX-FileCopyrightText: 2012 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "COM_KeyingOperation.h"
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#include "BLI_math_geom.h"
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namespace blender::compositor {
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static float get_pixel_saturation(const float pixel_color[4],
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float screen_balance,
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int primary_channel)
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{
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const int other_1 = (primary_channel + 1) % 3;
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const int other_2 = (primary_channel + 2) % 3;
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const int min_channel = std::min(other_1, other_2);
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const int max_channel = std::max(other_1, other_2);
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const float val = pixel_color[max_channel] +
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screen_balance * (pixel_color[min_channel] - pixel_color[max_channel]);
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return (pixel_color[primary_channel] - val) * fabsf(1.0f - val);
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}
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KeyingOperation::KeyingOperation()
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{
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this->add_input_socket(DataType::Color);
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this->add_input_socket(DataType::Color);
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this->add_output_socket(DataType::Value);
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screen_balance_ = 0.5f;
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flags_.can_be_constant = true;
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}
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void KeyingOperation::update_memory_buffer_partial(MemoryBuffer *output,
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const rcti &area,
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Span<MemoryBuffer *> inputs)
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{
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for (BuffersIterator<float> it = output->iterate_with(inputs, area); !it.is_end(); ++it) {
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const float *pixel_color = it.in(0);
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const float *screen_color = it.in(1);
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const int primary_channel = max_axis_v3(screen_color);
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const float min_pixel_color = min_fff(pixel_color[0], pixel_color[1], pixel_color[2]);
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if (min_pixel_color > 1.0f) {
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/* Overexposure doesn't happen on screen itself and usually happens
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* on light sources in the shot, this need to be checked separately
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* because saturation and falloff calculation is based on the fact
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* that pixels are not overexposed.
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*/
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it.out[0] = 1.0f;
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}
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else {
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const float saturation = get_pixel_saturation(pixel_color, screen_balance_, primary_channel);
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const float screen_saturation = get_pixel_saturation(
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screen_color, screen_balance_, primary_channel);
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if (saturation < 0) {
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/* Means main channel of pixel is different from screen,
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* assume this is completely a foreground.
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*/
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it.out[0] = 1.0f;
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}
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else if (saturation >= screen_saturation) {
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/* Matched main channels and higher saturation on pixel
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* is treated as completely background.
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*/
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it.out[0] = 0.0f;
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}
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else {
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/* Nice alpha falloff on edges. */
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const float distance = 1.0f - saturation / screen_saturation;
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it.out[0] = distance;
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}
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}
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}
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}
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} // namespace blender::compositor
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