775df8826b
This patch adds a new Image Info node which returns information about compositor images. The node has three sources: The node returns the following information: - Pixel Coordinates: The coordinates of the centers of the pixels in the image. Those are essentially the integer coordinates with half pixels offsets added. - Texture Coordinates: Zero centered pixel coordinates normalized along the greater dimension. Somewhat analogous to Object coordinates in shader nodes. - Resolution: The resolution of the image. - Location: The location of the image in the virtual compositing space. - Rotation: The rotation of the image in the virtual compositing space. - Scale: The scale of the image in the virtual compositing space. This node is very useful to allow greater flexibility and procedural creations. For instance, coordinates can be used to create procedural effects like vignette using very simple math nodes. And size can be used to compute size-relative parameters for pixel-parameter nodes. Pull Request: https://projects.blender.org/blender/blender/pulls/135104
92 lines
4.3 KiB
C++
92 lines
4.3 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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#include "COM_bokeh_kernel.hh"
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#include "COM_cached_image.hh"
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#include "COM_cached_mask.hh"
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#include "COM_cached_shader.hh"
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#include "COM_cached_texture.hh"
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#include "COM_deriche_gaussian_coefficients.hh"
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#include "COM_distortion_grid.hh"
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#include "COM_fog_glow_kernel.hh"
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#include "COM_keying_screen.hh"
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#include "COM_morphological_distance_feather_weights.hh"
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#include "COM_ocio_color_space_conversion_shader.hh"
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#include "COM_pixel_coordinates.hh"
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#include "COM_smaa_precomputed_textures.hh"
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#include "COM_symmetric_blur_weights.hh"
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#include "COM_symmetric_separable_blur_weights.hh"
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#include "COM_texture_coordinates.hh"
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#include "COM_van_vliet_gaussian_coefficients.hh"
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namespace blender::compositor {
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/* -------------------------------------------------------------------------------------------------
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* Static Cache Manager
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*
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* A static cache manager is a collection of cached resources that can be retrieved when needed and
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* created if not already available. In particular, each cached resource type has its own instance
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* of a container derived from the CachedResourceContainer type in the class. All instances of that
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* cached resource type are stored and tracked in the container. See the CachedResource and
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* CachedResourceContainer classes for more information.
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*
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* The manager deletes the cached resources that are no longer needed. A cached resource is said to
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* be not needed when it was not used in the previous evaluation. This is done through the
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* following mechanism:
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*
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* - Before every evaluation, do the following:
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* 1. All resources whose CachedResource::needed flag is false are deleted.
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* 2. The CachedResource::needed flag of all remaining resources is set to false.
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* - During evaluation, when retrieving any cached resource, set its CachedResource::needed flag to
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* true.
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*
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* In effect, any resource that was used in the previous evaluation but was not used in the current
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* evaluation will be deleted before the next evaluation. This mechanism is implemented in the
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* reset() method of the class, which should be called before every evaluation. The reset for the
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* next evaluation can be skipped by calling the skip_next_reset() method, see its description for
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* more information. */
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class StaticCacheManager {
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public:
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SymmetricBlurWeightsContainer symmetric_blur_weights;
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SymmetricSeparableBlurWeightsContainer symmetric_separable_blur_weights;
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MorphologicalDistanceFeatherWeightsContainer morphological_distance_feather_weights;
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CachedTextureContainer cached_textures;
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CachedMaskContainer cached_masks;
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SMAAPrecomputedTexturesContainer smaa_precomputed_textures;
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OCIOColorSpaceConversionShaderContainer ocio_color_space_conversion_shaders;
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DistortionGridContainer distortion_grids;
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KeyingScreenContainer keying_screens;
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CachedShaderContainer cached_shaders;
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BokehKernelContainer bokeh_kernels;
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CachedImageContainer cached_images;
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DericheGaussianCoefficientsContainer deriche_gaussian_coefficients;
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VanVlietGaussianCoefficientsContainer van_vliet_gaussian_coefficients;
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FogGlowKernelContainer fog_glow_kernels;
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TextureCoordinatesContainer texture_coordinates;
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PixelCoordinatesContainer pixel_coordinates;
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private:
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/* The cache manager should skip the next reset. See the skip_next_reset() method for more
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* information. */
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bool should_skip_next_reset_ = false;
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public:
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/* Reset the cache manager by deleting the cached resources that are no longer needed because
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* they weren't used in the last evaluation and prepare the remaining cached resources to track
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* their needed status in the next evaluation. See the class description for more information.
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* This should be called before every evaluation. */
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void reset();
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/* Specifies that the cache manager should skip the next reset. This is useful for instance when
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* the evaluation gets canceled before it was fully done, in that case, we wouldn't want to
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* invalidate the cache because not all operations that use cached resources got the chance to
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* mark their used resources as still in use. So we wait until a full evaluation happen before we
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* decide that some resources are no longer needed. */
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void skip_next_reset();
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};
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} // namespace blender::compositor
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