diff options
author | Jeroen Bakker <jeroen@blender.org> | 2021-11-26 10:16:35 +0300 |
---|---|---|
committer | Jeroen Bakker <jeroen@blender.org> | 2021-11-26 10:16:35 +0300 |
commit | 8015433f81b4956e4ee4efffb80ab10324df5675 (patch) | |
tree | 806aa68acae350e11a1411f73e7f21933365ce66 /source/blender/blenkernel/intern/image_gpu.c | |
parent | e3cf7ebdb1c44920933496aae953c3dd98a20296 (diff) |
Cleanup: Migrate `image_gpu.cc` to CC.
To prepare for future changes {T92613}.
Diffstat (limited to 'source/blender/blenkernel/intern/image_gpu.c')
-rw-r--r-- | source/blender/blenkernel/intern/image_gpu.c | 1026 |
1 files changed, 0 insertions, 1026 deletions
diff --git a/source/blender/blenkernel/intern/image_gpu.c b/source/blender/blenkernel/intern/image_gpu.c deleted file mode 100644 index 330af1cc505..00000000000 --- a/source/blender/blenkernel/intern/image_gpu.c +++ /dev/null @@ -1,1026 +0,0 @@ -/* - * 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. - * - * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV. - * All rights reserved. - */ - -/** \file - * \ingroup bke - */ - -#include "MEM_guardedalloc.h" - -#include "BLI_bitmap.h" -#include "BLI_boxpack_2d.h" -#include "BLI_linklist.h" -#include "BLI_listbase.h" -#include "BLI_threads.h" - -#include "DNA_image_types.h" -#include "DNA_userdef_types.h" - -#include "IMB_colormanagement.h" -#include "IMB_imbuf.h" -#include "IMB_imbuf_types.h" - -#include "BKE_global.h" -#include "BKE_image.h" -#include "BKE_main.h" - -#include "GPU_capabilities.h" -#include "GPU_state.h" -#include "GPU_texture.h" - -#include "PIL_time.h" - -/* Prototypes. */ -static void gpu_free_unused_buffers(void); -static void image_free_gpu(Image *ima, const bool immediate); -static void image_free_gpu_limited_scale(Image *ima); -static void image_update_gputexture_ex( - Image *ima, ImageTile *tile, ImBuf *ibuf, int x, int y, int w, int h); - -/* Internal structs. */ -#define IMA_PARTIAL_REFRESH_TILE_SIZE 256 -typedef struct ImagePartialRefresh { - struct ImagePartialRefresh *next, *prev; - int tile_x; - int tile_y; -} ImagePartialRefresh; - -/* Is the alpha of the `GPUTexture` for a given image/ibuf premultiplied. */ -bool BKE_image_has_gpu_texture_premultiplied_alpha(Image *image, ImBuf *ibuf) -{ - if (image) { - /* Render result and compositor output are always premultiplied */ - if (ELEM(image->type, IMA_TYPE_R_RESULT, IMA_TYPE_COMPOSITE)) { - return true; - } - /* Generated images use pre multiplied float buffer, but straight alpha for byte buffers. */ - if (image->type == IMA_TYPE_UV_TEST && ibuf) { - return ibuf->rect_float != NULL; - } - } - if (ibuf) { - if (ibuf->rect_float) { - return image ? (image->alpha_mode != IMA_ALPHA_STRAIGHT) : false; - } - - return image ? (image->alpha_mode == IMA_ALPHA_PREMUL) : true; - } - return false; -} - -/* -------------------------------------------------------------------- */ -/** \name UDIM gpu texture - * \{ */ -static bool is_over_resolution_limit(int w, int h, bool limit_gl_texture_size) -{ - return (w > GPU_texture_size_with_limit(w, limit_gl_texture_size) || - h > GPU_texture_size_with_limit(h, limit_gl_texture_size)); -} - -static int smaller_power_of_2_limit(int num, bool limit_gl_texture_size) -{ - return power_of_2_min_i(GPU_texture_size_with_limit(num, limit_gl_texture_size)); -} - -static GPUTexture *gpu_texture_create_tile_mapping( - Image *ima, const int multiview_eye, const eImageTextureResolution texture_resolution) -{ - const int resolution = (texture_resolution == IMA_TEXTURE_RESOLUTION_LIMITED) ? 1 : 0; - GPUTexture *tilearray = ima->gputexture[TEXTARGET_2D_ARRAY][multiview_eye][resolution]; - - if (tilearray == NULL) { - return 0; - } - - float array_w = GPU_texture_width(tilearray); - float array_h = GPU_texture_height(tilearray); - - /* Determine maximum tile number. */ - BKE_image_sort_tiles(ima); - ImageTile *last_tile = (ImageTile *)ima->tiles.last; - int max_tile = last_tile->tile_number - 1001; - - /* create image */ - int width = max_tile + 1; - float *data = (float *)MEM_callocN(width * 8 * sizeof(float), __func__); - for (int i = 0; i < width; i++) { - data[4 * i] = -1.0f; - } - LISTBASE_FOREACH (ImageTile *, tile, &ima->tiles) { - int i = tile->tile_number - 1001; - ImageTile_RuntimeTextureSlot *tile_runtime = &tile->runtime.slots[resolution]; - data[4 * i] = tile_runtime->tilearray_layer; - - float *tile_info = &data[4 * width + 4 * i]; - tile_info[0] = tile_runtime->tilearray_offset[0] / array_w; - tile_info[1] = tile_runtime->tilearray_offset[1] / array_h; - tile_info[2] = tile_runtime->tilearray_size[0] / array_w; - tile_info[3] = tile_runtime->tilearray_size[1] / array_h; - } - - GPUTexture *tex = GPU_texture_create_1d_array(ima->id.name + 2, width, 2, 1, GPU_RGBA32F, data); - GPU_texture_mipmap_mode(tex, false, false); - - MEM_freeN(data); - - return tex; -} - -typedef struct PackTile { - FixedSizeBoxPack boxpack; - ImageTile *tile; - float pack_score; -} PackTile; - -static int compare_packtile(const void *a, const void *b) -{ - const PackTile *tile_a = (const PackTile *)a; - const PackTile *tile_b = (const PackTile *)b; - - return tile_a->pack_score < tile_b->pack_score; -} - -static GPUTexture *gpu_texture_create_tile_array(Image *ima, - ImBuf *main_ibuf, - const eImageTextureResolution texture_resolution) -{ - const bool limit_gl_texture_size = texture_resolution == IMA_TEXTURE_RESOLUTION_LIMITED; - const int resolution = texture_resolution == IMA_TEXTURE_RESOLUTION_LIMITED ? 1 : 0; - int arraywidth = 0, arrayheight = 0; - ListBase boxes = {NULL}; - - LISTBASE_FOREACH (ImageTile *, tile, &ima->tiles) { - ImageUser iuser; - BKE_imageuser_default(&iuser); - iuser.tile = tile->tile_number; - ImBuf *ibuf = BKE_image_acquire_ibuf(ima, &iuser, NULL); - - if (ibuf) { - PackTile *packtile = (PackTile *)MEM_callocN(sizeof(PackTile), __func__); - packtile->tile = tile; - packtile->boxpack.w = ibuf->x; - packtile->boxpack.h = ibuf->y; - - if (is_over_resolution_limit( - packtile->boxpack.w, packtile->boxpack.h, limit_gl_texture_size)) { - packtile->boxpack.w = smaller_power_of_2_limit(packtile->boxpack.w, limit_gl_texture_size); - packtile->boxpack.h = smaller_power_of_2_limit(packtile->boxpack.h, limit_gl_texture_size); - } - arraywidth = max_ii(arraywidth, packtile->boxpack.w); - arrayheight = max_ii(arrayheight, packtile->boxpack.h); - - /* We sort the tiles by decreasing size, with an additional penalty term - * for high aspect ratios. This improves packing efficiency. */ - float w = packtile->boxpack.w, h = packtile->boxpack.h; - packtile->pack_score = max_ff(w, h) / min_ff(w, h) * w * h; - - BKE_image_release_ibuf(ima, ibuf, NULL); - BLI_addtail(&boxes, packtile); - } - } - - BLI_assert(arraywidth > 0 && arrayheight > 0); - - BLI_listbase_sort(&boxes, compare_packtile); - int arraylayers = 0; - /* Keep adding layers until all tiles are packed. */ - while (boxes.first != NULL) { - ListBase packed = {NULL}; - BLI_box_pack_2d_fixedarea(&boxes, arraywidth, arrayheight, &packed); - BLI_assert(packed.first != NULL); - - LISTBASE_FOREACH (PackTile *, packtile, &packed) { - ImageTile *tile = packtile->tile; - ImageTile_RuntimeTextureSlot *tile_runtime = &tile->runtime.slots[resolution]; - int *tileoffset = tile_runtime->tilearray_offset; - int *tilesize = tile_runtime->tilearray_size; - - tileoffset[0] = packtile->boxpack.x; - tileoffset[1] = packtile->boxpack.y; - tilesize[0] = packtile->boxpack.w; - tilesize[1] = packtile->boxpack.h; - tile_runtime->tilearray_layer = arraylayers; - } - - BLI_freelistN(&packed); - arraylayers++; - } - - const bool use_high_bitdepth = (ima->flag & IMA_HIGH_BITDEPTH); - /* Create Texture without content. */ - GPUTexture *tex = IMB_touch_gpu_texture( - ima->id.name + 2, main_ibuf, arraywidth, arrayheight, arraylayers, use_high_bitdepth); - - /* Upload each tile one by one. */ - LISTBASE_FOREACH (ImageTile *, tile, &ima->tiles) { - ImageTile_RuntimeTextureSlot *tile_runtime = &tile->runtime.slots[resolution]; - int tilelayer = tile_runtime->tilearray_layer; - int *tileoffset = tile_runtime->tilearray_offset; - int *tilesize = tile_runtime->tilearray_size; - - if (tilesize[0] == 0 || tilesize[1] == 0) { - continue; - } - - ImageUser iuser; - BKE_imageuser_default(&iuser); - iuser.tile = tile->tile_number; - ImBuf *ibuf = BKE_image_acquire_ibuf(ima, &iuser, NULL); - - if (ibuf) { - const bool store_premultiplied = BKE_image_has_gpu_texture_premultiplied_alpha(ima, ibuf); - IMB_update_gpu_texture_sub(tex, - ibuf, - UNPACK2(tileoffset), - tilelayer, - UNPACK2(tilesize), - use_high_bitdepth, - store_premultiplied); - } - - BKE_image_release_ibuf(ima, ibuf, NULL); - } - - if (GPU_mipmap_enabled()) { - GPU_texture_generate_mipmap(tex); - GPU_texture_mipmap_mode(tex, true, true); - if (ima) { - ima->gpuflag |= IMA_GPU_MIPMAP_COMPLETE; - } - } - else { - GPU_texture_mipmap_mode(tex, false, true); - } - - return tex; -} - -/** \} */ - -/* -------------------------------------------------------------------- */ -/** \name Regular gpu texture - * \{ */ - -static bool image_max_resolution_texture_fits_in_limited_scale(Image *ima, - eGPUTextureTarget textarget, - const int multiview_eye) -{ - BLI_assert_msg(U.glreslimit != 0, - "limited scale function called without limited scale being set."); - GPUTexture *max_resolution_texture = - ima->gputexture[textarget][multiview_eye][IMA_TEXTURE_RESOLUTION_FULL]; - if (max_resolution_texture && GPU_texture_width(max_resolution_texture) <= U.glreslimit && - GPU_texture_height(max_resolution_texture) <= U.glreslimit) { - return true; - } - return false; -} - -static GPUTexture **get_image_gpu_texture_ptr(Image *ima, - eGPUTextureTarget textarget, - const int multiview_eye, - const eImageTextureResolution texture_resolution) -{ - const bool in_range = (textarget >= 0) && (textarget < TEXTARGET_COUNT); - BLI_assert(in_range); - BLI_assert(multiview_eye == 0 || multiview_eye == 1); - const int resolution = (texture_resolution == IMA_TEXTURE_RESOLUTION_LIMITED) ? 1 : 0; - - if (in_range) { - return &(ima->gputexture[textarget][multiview_eye][resolution]); - } - return NULL; -} - -static GPUTexture *image_gpu_texture_error_create(eGPUTextureTarget textarget) -{ - fprintf(stderr, "GPUTexture: Blender Texture Not Loaded!\n"); - switch (textarget) { - case TEXTARGET_2D_ARRAY: - return GPU_texture_create_error(2, true); - case TEXTARGET_TILE_MAPPING: - return GPU_texture_create_error(1, true); - case TEXTARGET_2D: - default: - return GPU_texture_create_error(2, false); - } -} - -static void image_update_reusable_textures(Image *ima, - eGPUTextureTarget textarget, - const int multiview_eye) -{ - if ((ima->gpuflag & IMA_GPU_HAS_LIMITED_SCALE_TEXTURES) == 0) { - return; - } - - if (ELEM(textarget, TEXTARGET_2D, TEXTARGET_2D_ARRAY)) { - if (image_max_resolution_texture_fits_in_limited_scale(ima, textarget, multiview_eye)) { - image_free_gpu_limited_scale(ima); - } - } -} - -static GPUTexture *image_get_gpu_texture(Image *ima, - ImageUser *iuser, - ImBuf *ibuf, - eGPUTextureTarget textarget) -{ - if (ima == NULL) { - return NULL; - } - - /* Free any unused GPU textures, since we know we are in a thread with OpenGL - * context and might as well ensure we have as much space free as possible. */ - gpu_free_unused_buffers(); - - /* Free GPU textures when requesting a different render pass/layer. - * When `iuser` isn't set (texture painting single image mode) we assume that - * the current `pass` and `layer` should be 0. */ - short requested_pass = iuser ? iuser->pass : 0; - short requested_layer = iuser ? iuser->layer : 0; - short requested_view = iuser ? iuser->multi_index : 0; - /* There is room for 2 multiview textures. When a higher number is requested we should always - * target the first view slot. This is fine as multi view images aren't used together. */ - if (requested_view < 2) { - requested_view = 0; - } - if (ima->gpu_pass != requested_pass || ima->gpu_layer != requested_layer || - ima->gpu_view != requested_view) { - ima->gpu_pass = requested_pass; - ima->gpu_layer = requested_layer; - ima->gpu_view = requested_view; - ima->gpuflag |= IMA_GPU_REFRESH; - } -#undef GPU_FLAGS_TO_CHECK - - /* Check if image has been updated and tagged to be updated (full or partial). */ - ImageTile *tile = BKE_image_get_tile(ima, 0); - if (((ima->gpuflag & IMA_GPU_REFRESH) != 0) || - ((ibuf == NULL || tile == NULL) && ((ima->gpuflag & IMA_GPU_PARTIAL_REFRESH) != 0))) { - image_free_gpu(ima, true); - BLI_freelistN(&ima->gpu_refresh_areas); - ima->gpuflag &= ~(IMA_GPU_REFRESH | IMA_GPU_PARTIAL_REFRESH); - } - else if (ima->gpuflag & IMA_GPU_PARTIAL_REFRESH) { - BLI_assert(ibuf); - BLI_assert(tile); - ImagePartialRefresh *refresh_area; - while ((refresh_area = BLI_pophead(&ima->gpu_refresh_areas))) { - const int tile_offset_x = refresh_area->tile_x * IMA_PARTIAL_REFRESH_TILE_SIZE; - const int tile_offset_y = refresh_area->tile_y * IMA_PARTIAL_REFRESH_TILE_SIZE; - const int tile_width = MIN2(IMA_PARTIAL_REFRESH_TILE_SIZE, ibuf->x - tile_offset_x); - const int tile_height = MIN2(IMA_PARTIAL_REFRESH_TILE_SIZE, ibuf->y - tile_offset_y); - image_update_gputexture_ex( - ima, tile, ibuf, tile_offset_x, tile_offset_y, tile_width, tile_height); - MEM_freeN(refresh_area); - } - ima->gpuflag &= ~IMA_GPU_PARTIAL_REFRESH; - } - - /* Tag as in active use for garbage collector. */ - BKE_image_tag_time(ima); - - /* Test if we already have a texture. */ - int current_view = iuser ? iuser->multi_index : 0; - if (current_view >= 2) { - current_view = 0; - } - const bool limit_resolution = U.glreslimit != 0 && - ((iuser && (iuser->flag & IMA_SHOW_MAX_RESOLUTION) == 0) || - (iuser == NULL)) && - ((ima->gpuflag & IMA_GPU_REUSE_MAX_RESOLUTION) == 0); - const eImageTextureResolution texture_resolution = limit_resolution ? - IMA_TEXTURE_RESOLUTION_LIMITED : - IMA_TEXTURE_RESOLUTION_FULL; - GPUTexture **tex = get_image_gpu_texture_ptr(ima, textarget, current_view, texture_resolution); - if (*tex) { - return *tex; - } - - /* Check if we have a valid image. If not, we return a dummy - * texture with zero bind-code so we don't keep trying. */ - if (tile == NULL) { - *tex = image_gpu_texture_error_create(textarget); - return *tex; - } - - /* check if we have a valid image buffer */ - ImBuf *ibuf_intern = ibuf; - if (ibuf_intern == NULL) { - ibuf_intern = BKE_image_acquire_ibuf(ima, iuser, NULL); - if (ibuf_intern == NULL) { - *tex = image_gpu_texture_error_create(textarget); - return *tex; - } - } - - if (textarget == TEXTARGET_2D_ARRAY) { - *tex = gpu_texture_create_tile_array(ima, ibuf_intern, texture_resolution); - } - else if (textarget == TEXTARGET_TILE_MAPPING) { - *tex = gpu_texture_create_tile_mapping( - ima, iuser ? iuser->multiview_eye : 0, texture_resolution); - } - else { - const bool use_high_bitdepth = (ima->flag & IMA_HIGH_BITDEPTH); - const bool store_premultiplied = BKE_image_has_gpu_texture_premultiplied_alpha(ima, - ibuf_intern); - - *tex = IMB_create_gpu_texture( - ima->id.name + 2, ibuf_intern, use_high_bitdepth, store_premultiplied, limit_resolution); - - if (*tex) { - GPU_texture_wrap_mode(*tex, true, false); - - if (GPU_mipmap_enabled()) { - GPU_texture_generate_mipmap(*tex); - if (ima) { - ima->gpuflag |= IMA_GPU_MIPMAP_COMPLETE; - } - GPU_texture_mipmap_mode(*tex, true, true); - } - else { - GPU_texture_mipmap_mode(*tex, false, true); - } - } - } - - switch (texture_resolution) { - case IMA_TEXTURE_RESOLUTION_LIMITED: - ima->gpuflag |= IMA_GPU_HAS_LIMITED_SCALE_TEXTURES; - break; - - case IMA_TEXTURE_RESOLUTION_FULL: - image_update_reusable_textures(ima, textarget, current_view); - break; - - case IMA_TEXTURE_RESOLUTION_LEN: - BLI_assert_unreachable(); - break; - } - - /* if `ibuf` was given, we don't own the `ibuf_intern` */ - if (ibuf == NULL) { - BKE_image_release_ibuf(ima, ibuf_intern, NULL); - } - - if (*tex) { - GPU_texture_orig_size_set(*tex, ibuf_intern->x, ibuf_intern->y); - } - - return *tex; -} - -GPUTexture *BKE_image_get_gpu_texture(Image *image, ImageUser *iuser, ImBuf *ibuf) -{ - return image_get_gpu_texture(image, iuser, ibuf, TEXTARGET_2D); -} - -GPUTexture *BKE_image_get_gpu_tiles(Image *image, ImageUser *iuser, ImBuf *ibuf) -{ - return image_get_gpu_texture(image, iuser, ibuf, TEXTARGET_2D_ARRAY); -} - -GPUTexture *BKE_image_get_gpu_tilemap(Image *image, ImageUser *iuser, ImBuf *ibuf) -{ - return image_get_gpu_texture(image, iuser, ibuf, TEXTARGET_TILE_MAPPING); -} - -/** \} */ - -/* -------------------------------------------------------------------- */ -/** \name Delayed GPU texture free - * - * Image datablocks can be deleted by any thread, but there may not be any active OpenGL context. - * In that case we push them into a queue and free the buffers later. - * \{ */ - -static LinkNode *gpu_texture_free_queue = NULL; -static ThreadMutex gpu_texture_queue_mutex = BLI_MUTEX_INITIALIZER; - -static void gpu_free_unused_buffers(void) -{ - if (gpu_texture_free_queue == NULL) { - return; - } - - BLI_mutex_lock(&gpu_texture_queue_mutex); - - while (gpu_texture_free_queue != NULL) { - GPUTexture *tex = BLI_linklist_pop(&gpu_texture_free_queue); - GPU_texture_free(tex); - } - - BLI_mutex_unlock(&gpu_texture_queue_mutex); -} - -void BKE_image_free_unused_gpu_textures() -{ - if (BLI_thread_is_main()) { - gpu_free_unused_buffers(); - } -} - -/** \} */ - -/* -------------------------------------------------------------------- */ -/** \name Deletion - * \{ */ - -static void image_free_gpu(Image *ima, const bool immediate) -{ - for (int eye = 0; eye < 2; eye++) { - for (int i = 0; i < TEXTARGET_COUNT; i++) { - for (int resolution = 0; resolution < IMA_TEXTURE_RESOLUTION_LEN; resolution++) { - if (ima->gputexture[i][eye][resolution] != NULL) { - if (immediate) { - GPU_texture_free(ima->gputexture[i][eye][resolution]); - } - else { - BLI_mutex_lock(&gpu_texture_queue_mutex); - BLI_linklist_prepend(&gpu_texture_free_queue, ima->gputexture[i][eye][resolution]); - BLI_mutex_unlock(&gpu_texture_queue_mutex); - } - - ima->gputexture[i][eye][resolution] = NULL; - } - } - } - } - - ima->gpuflag &= ~(IMA_GPU_MIPMAP_COMPLETE | IMA_GPU_HAS_LIMITED_SCALE_TEXTURES); -} - -static void image_free_gpu_limited_scale(Image *ima) -{ - const eImageTextureResolution resolution = IMA_TEXTURE_RESOLUTION_LIMITED; - for (int eye = 0; eye < 2; eye++) { - for (int i = 0; i < TEXTARGET_COUNT; i++) { - if (ima->gputexture[i][eye][resolution] != NULL) { - GPU_texture_free(ima->gputexture[i][eye][resolution]); - ima->gputexture[i][eye][resolution] = NULL; - } - } - } - - ima->gpuflag &= ~(IMA_GPU_MIPMAP_COMPLETE | IMA_GPU_HAS_LIMITED_SCALE_TEXTURES); -} - -void BKE_image_free_gputextures(Image *ima) -{ - image_free_gpu(ima, BLI_thread_is_main()); -} - -void BKE_image_free_all_gputextures(Main *bmain) -{ - if (bmain) { - LISTBASE_FOREACH (Image *, ima, &bmain->images) { - BKE_image_free_gputextures(ima); - } - } -} - -/* same as above but only free animated images */ -void BKE_image_free_anim_gputextures(Main *bmain) -{ - if (bmain) { - LISTBASE_FOREACH (Image *, ima, &bmain->images) { - if (BKE_image_is_animated(ima)) { - BKE_image_free_gputextures(ima); - } - } - } -} - -void BKE_image_free_old_gputextures(Main *bmain) -{ - static int lasttime = 0; - int ctime = (int)PIL_check_seconds_timer(); - - /* - * Run garbage collector once for every collecting period of time - * if textimeout is 0, that's the option to NOT run the collector - */ - if (U.textimeout == 0 || ctime % U.texcollectrate || ctime == lasttime) { - return; - } - - /* of course not! */ - if (G.is_rendering) { - return; - } - - lasttime = ctime; - - LISTBASE_FOREACH (Image *, ima, &bmain->images) { - if ((ima->flag & IMA_NOCOLLECT) == 0 && ctime - ima->lastused > U.textimeout) { - /* If it's in GL memory, deallocate and set time tag to current time - * This gives textures a "second chance" to be used before dying. */ - if (BKE_image_has_opengl_texture(ima)) { - BKE_image_free_gputextures(ima); - ima->lastused = ctime; - } - /* Otherwise, just kill the buffers */ - else { - BKE_image_free_buffers(ima); - } - } - } -} -/** \} */ - -/* -------------------------------------------------------------------- */ -/** \name Paint Update - * \{ */ - -static ImBuf *update_do_scale(uchar *rect, - float *rect_float, - int *x, - int *y, - int *w, - int *h, - int limit_w, - int limit_h, - int full_w, - int full_h) -{ - /* Partial update with scaling. */ - float xratio = limit_w / (float)full_w; - float yratio = limit_h / (float)full_h; - - int part_w = *w, part_h = *h; - - /* Find sub coordinates in scaled image. Take ceiling because we will be - * losing 1 pixel due to rounding errors in x,y. */ - *x *= xratio; - *y *= yratio; - *w = (int)ceil(xratio * (*w)); - *h = (int)ceil(yratio * (*h)); - - /* ...but take back if we are over the limit! */ - if (*x + *w > limit_w) { - (*w)--; - } - if (*y + *h > limit_h) { - (*h)--; - } - - /* Scale pixels. */ - ImBuf *ibuf = IMB_allocFromBuffer((uint *)rect, rect_float, part_w, part_h, 4); - IMB_scaleImBuf(ibuf, *w, *h); - - return ibuf; -} - -static void gpu_texture_update_scaled(GPUTexture *tex, - uchar *rect, - float *rect_float, - int full_w, - int full_h, - int x, - int y, - int layer, - const int *tile_offset, - const int *tile_size, - int w, - int h) -{ - ImBuf *ibuf; - if (layer > -1) { - ibuf = update_do_scale( - rect, rect_float, &x, &y, &w, &h, tile_size[0], tile_size[1], full_w, full_h); - - /* Shift to account for tile packing. */ - x += tile_offset[0]; - y += tile_offset[1]; - } - else { - /* Partial update with scaling. */ - int limit_w = GPU_texture_width(tex); - int limit_h = GPU_texture_height(tex); - - ibuf = update_do_scale(rect, rect_float, &x, &y, &w, &h, limit_w, limit_h, full_w, full_h); - } - - void *data = (ibuf->rect_float) ? (void *)(ibuf->rect_float) : (void *)(ibuf->rect); - eGPUDataFormat data_format = (ibuf->rect_float) ? GPU_DATA_FLOAT : GPU_DATA_UBYTE; - - GPU_texture_update_sub(tex, data_format, data, x, y, layer, w, h, 1); - - IMB_freeImBuf(ibuf); -} - -static void gpu_texture_update_unscaled(GPUTexture *tex, - uchar *rect, - float *rect_float, - int x, - int y, - int layer, - const int tile_offset[2], - int w, - int h, - int tex_stride, - int tex_offset) -{ - if (layer > -1) { - /* Shift to account for tile packing. */ - x += tile_offset[0]; - y += tile_offset[1]; - } - - void *data = (rect_float) ? (void *)(rect_float + tex_offset) : (void *)(rect + tex_offset); - eGPUDataFormat data_format = (rect_float) ? GPU_DATA_FLOAT : GPU_DATA_UBYTE; - - /* Partial update without scaling. Stride and offset are used to copy only a - * subset of a possible larger buffer than what we are updating. */ - GPU_unpack_row_length_set(tex_stride); - - GPU_texture_update_sub(tex, data_format, data, x, y, layer, w, h, 1); - /* Restore default. */ - GPU_unpack_row_length_set(0); -} - -static void gpu_texture_update_from_ibuf(GPUTexture *tex, - Image *ima, - ImBuf *ibuf, - ImageTile *tile, - int x, - int y, - int w, - int h, - eImageTextureResolution texture_resolution) -{ - const int resolution = texture_resolution == IMA_TEXTURE_RESOLUTION_LIMITED ? 1 : 0; - bool scaled; - if (tile != NULL) { - ImageTile_RuntimeTextureSlot *tile_runtime = &tile->runtime.slots[resolution]; - int *tilesize = tile_runtime->tilearray_size; - scaled = (ibuf->x != tilesize[0]) || (ibuf->y != tilesize[1]); - } - else { - scaled = (GPU_texture_width(tex) != ibuf->x) || (GPU_texture_height(tex) != ibuf->y); - } - - if (scaled) { - /* Extra padding to account for bleed from neighboring pixels. */ - const int padding = 4; - const int xmax = min_ii(x + w + padding, ibuf->x); - const int ymax = min_ii(y + h + padding, ibuf->y); - x = max_ii(x - padding, 0); - y = max_ii(y - padding, 0); - w = xmax - x; - h = ymax - y; - } - - /* Get texture data pointers. */ - float *rect_float = ibuf->rect_float; - uchar *rect = (uchar *)ibuf->rect; - int tex_stride = ibuf->x; - int tex_offset = ibuf->channels * (y * ibuf->x + x); - - const bool store_premultiplied = BKE_image_has_gpu_texture_premultiplied_alpha(ima, ibuf); - if (rect_float == NULL) { - /* Byte pixels. */ - if (!IMB_colormanagement_space_is_data(ibuf->rect_colorspace)) { - const bool compress_as_srgb = !IMB_colormanagement_space_is_scene_linear( - ibuf->rect_colorspace); - - rect = (uchar *)MEM_mallocN(sizeof(uchar[4]) * w * h, __func__); - if (rect == NULL) { - return; - } - - tex_stride = w; - tex_offset = 0; - - /* Convert to scene linear with sRGB compression, and premultiplied for - * correct texture interpolation. */ - IMB_colormanagement_imbuf_to_byte_texture( - rect, x, y, w, h, ibuf, compress_as_srgb, store_premultiplied); - } - } - else { - /* Float pixels. */ - if (ibuf->channels != 4 || scaled || !store_premultiplied) { - rect_float = (float *)MEM_mallocN(sizeof(float[4]) * w * h, __func__); - if (rect_float == NULL) { - return; - } - - tex_stride = w; - tex_offset = 0; - - IMB_colormanagement_imbuf_to_float_texture( - rect_float, x, y, w, h, ibuf, store_premultiplied); - } - } - - if (scaled) { - /* Slower update where we first have to scale the input pixels. */ - if (tile != NULL) { - ImageTile_RuntimeTextureSlot *tile_runtime = &tile->runtime.slots[resolution]; - int *tileoffset = tile_runtime->tilearray_offset; - int *tilesize = tile_runtime->tilearray_size; - int tilelayer = tile_runtime->tilearray_layer; - gpu_texture_update_scaled( - tex, rect, rect_float, ibuf->x, ibuf->y, x, y, tilelayer, tileoffset, tilesize, w, h); - } - else { - gpu_texture_update_scaled( - tex, rect, rect_float, ibuf->x, ibuf->y, x, y, -1, NULL, NULL, w, h); - } - } - else { - /* Fast update at same resolution. */ - if (tile != NULL) { - ImageTile_RuntimeTextureSlot *tile_runtime = &tile->runtime.slots[resolution]; - int *tileoffset = tile_runtime->tilearray_offset; - int tilelayer = tile_runtime->tilearray_layer; - gpu_texture_update_unscaled( - tex, rect, rect_float, x, y, tilelayer, tileoffset, w, h, tex_stride, tex_offset); - } - else { - gpu_texture_update_unscaled( - tex, rect, rect_float, x, y, -1, NULL, w, h, tex_stride, tex_offset); - } - } - - /* Free buffers if needed. */ - if (rect && rect != (uchar *)ibuf->rect) { - MEM_freeN(rect); - } - if (rect_float && rect_float != ibuf->rect_float) { - MEM_freeN(rect_float); - } - - if (GPU_mipmap_enabled()) { - GPU_texture_generate_mipmap(tex); - } - else { - ima->gpuflag &= ~IMA_GPU_MIPMAP_COMPLETE; - } - - GPU_texture_unbind(tex); -} - -static void image_update_gputexture_ex( - Image *ima, ImageTile *tile, ImBuf *ibuf, int x, int y, int w, int h) -{ - const int eye = 0; - for (int resolution = 0; resolution < IMA_TEXTURE_RESOLUTION_LEN; resolution++) { - GPUTexture *tex = ima->gputexture[TEXTARGET_2D][eye][resolution]; - eImageTextureResolution texture_resolution = resolution; - /* Check if we need to update the main gputexture. */ - if (tex != NULL && tile == ima->tiles.first) { - gpu_texture_update_from_ibuf(tex, ima, ibuf, NULL, x, y, w, h, texture_resolution); - } - - /* Check if we need to update the array gputexture. */ - tex = ima->gputexture[TEXTARGET_2D_ARRAY][eye][resolution]; - if (tex != NULL) { - gpu_texture_update_from_ibuf(tex, ima, ibuf, tile, x, y, w, h, texture_resolution); - } - } -} - -/* Partial update of texture for texture painting. This is often much - * quicker than fully updating the texture for high resolution images. */ -void BKE_image_update_gputexture(Image *ima, ImageUser *iuser, int x, int y, int w, int h) -{ - ImBuf *ibuf = BKE_image_acquire_ibuf(ima, iuser, NULL); - ImageTile *tile = BKE_image_get_tile_from_iuser(ima, iuser); - - if ((ibuf == NULL) || (w == 0) || (h == 0)) { - /* Full reload of texture. */ - BKE_image_free_gputextures(ima); - } - image_update_gputexture_ex(ima, tile, ibuf, x, y, w, h); - BKE_image_release_ibuf(ima, ibuf, NULL); -} - -/* Mark areas on the GPUTexture that needs to be updated. The areas are marked in chunks. - * The next time the GPUTexture is used these tiles will be refreshes. This saves time - * when writing to the same place multiple times This happens for during foreground - * rendering. */ -void BKE_image_update_gputexture_delayed( - struct Image *ima, struct ImBuf *ibuf, int x, int y, int w, int h) -{ - /* Check for full refresh. */ - if (ibuf && x == 0 && y == 0 && w == ibuf->x && h == ibuf->y) { - ima->gpuflag |= IMA_GPU_REFRESH; - } - /* Check if we can promote partial refresh to a full refresh. */ - if ((ima->gpuflag & (IMA_GPU_REFRESH | IMA_GPU_PARTIAL_REFRESH)) == - (IMA_GPU_REFRESH | IMA_GPU_PARTIAL_REFRESH)) { - ima->gpuflag &= ~IMA_GPU_PARTIAL_REFRESH; - BLI_freelistN(&ima->gpu_refresh_areas); - } - /* Image is already marked for complete refresh. */ - if (ima->gpuflag & IMA_GPU_REFRESH) { - return; - } - - /* Schedule the tiles that covers the requested area. */ - const int start_tile_x = x / IMA_PARTIAL_REFRESH_TILE_SIZE; - const int start_tile_y = y / IMA_PARTIAL_REFRESH_TILE_SIZE; - const int end_tile_x = (x + w) / IMA_PARTIAL_REFRESH_TILE_SIZE; - const int end_tile_y = (y + h) / IMA_PARTIAL_REFRESH_TILE_SIZE; - const int num_tiles_x = (end_tile_x + 1) - (start_tile_x); - const int num_tiles_y = (end_tile_y + 1) - (start_tile_y); - const int num_tiles = num_tiles_x * num_tiles_y; - const bool allocate_on_heap = BLI_BITMAP_SIZE(num_tiles) > 16; - BLI_bitmap *requested_tiles = NULL; - if (allocate_on_heap) { - requested_tiles = BLI_BITMAP_NEW(num_tiles, __func__); - } - else { - requested_tiles = BLI_BITMAP_NEW_ALLOCA(num_tiles); - } - - /* Mark the tiles that have already been requested. They don't need to be requested again. */ - int num_tiles_not_scheduled = num_tiles; - LISTBASE_FOREACH (ImagePartialRefresh *, area, &ima->gpu_refresh_areas) { - if (area->tile_x < start_tile_x || area->tile_x > end_tile_x || area->tile_y < start_tile_y || - area->tile_y > end_tile_y) { - continue; - } - int requested_tile_index = (area->tile_x - start_tile_x) + - (area->tile_y - start_tile_y) * num_tiles_x; - BLI_BITMAP_ENABLE(requested_tiles, requested_tile_index); - num_tiles_not_scheduled--; - if (num_tiles_not_scheduled == 0) { - break; - } - } - - /* Schedule the tiles that aren't requested yet. */ - if (num_tiles_not_scheduled) { - int tile_index = 0; - for (int tile_y = start_tile_y; tile_y <= end_tile_y; tile_y++) { - for (int tile_x = start_tile_x; tile_x <= end_tile_x; tile_x++) { - if (!BLI_BITMAP_TEST_BOOL(requested_tiles, tile_index)) { - ImagePartialRefresh *area = MEM_mallocN(sizeof(ImagePartialRefresh), __func__); - area->tile_x = tile_x; - area->tile_y = tile_y; - BLI_addtail(&ima->gpu_refresh_areas, area); - } - tile_index++; - } - } - ima->gpuflag |= IMA_GPU_PARTIAL_REFRESH; - } - if (allocate_on_heap) { - MEM_freeN(requested_tiles); - } -} - -/* these two functions are called on entering and exiting texture paint mode, - * temporary disabling/enabling mipmapping on all images for quick texture - * updates with glTexSubImage2D. images that didn't change don't have to be - * re-uploaded to OpenGL */ -void BKE_image_paint_set_mipmap(Main *bmain, bool mipmap) -{ - LISTBASE_FOREACH (Image *, ima, &bmain->images) { - if (BKE_image_has_opengl_texture(ima)) { - if (ima->gpuflag & IMA_GPU_MIPMAP_COMPLETE) { - for (int a = 0; a < TEXTARGET_COUNT; a++) { - if (ELEM(a, TEXTARGET_2D, TEXTARGET_2D_ARRAY)) { - for (int eye = 0; eye < 2; eye++) { - for (int resolution = 0; resolution < IMA_TEXTURE_RESOLUTION_LEN; resolution++) { - GPUTexture *tex = ima->gputexture[a][eye][resolution]; - if (tex != NULL) { - GPU_texture_mipmap_mode(tex, mipmap, true); - } - } - } - } - } - } - else { - BKE_image_free_gputextures(ima); - } - } - else { - ima->gpuflag &= ~IMA_GPU_MIPMAP_COMPLETE; - } - } -} - -/** \} */ |