diff options
Diffstat (limited to 'source/blender/draw/engines/image/image_engine.c')
-rw-r--r-- | source/blender/draw/engines/image/image_engine.c | 459 |
1 files changed, 0 insertions, 459 deletions
diff --git a/source/blender/draw/engines/image/image_engine.c b/source/blender/draw/engines/image/image_engine.c deleted file mode 100644 index 8b4acfbd5e3..00000000000 --- a/source/blender/draw/engines/image/image_engine.c +++ /dev/null @@ -1,459 +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. - * - * Copyright 2020, Blender Foundation. - */ - -/** \file - * \ingroup draw_editors - * - * Draw engine to draw the Image/UV editor - */ - -#include "DRW_render.h" - -#include "BKE_image.h" -#include "BKE_main.h" -#include "BKE_object.h" - -#include "DNA_camera_types.h" -#include "DNA_screen_types.h" - -#include "IMB_imbuf.h" -#include "IMB_imbuf_types.h" - -#include "ED_image.h" - -#include "GPU_batch.h" - -#include "image_engine.h" -#include "image_private.h" - -#define IMAGE_DRAW_FLAG_SHOW_ALPHA (1 << 0) -#define IMAGE_DRAW_FLAG_APPLY_ALPHA (1 << 1) -#define IMAGE_DRAW_FLAG_SHUFFLING (1 << 2) -#define IMAGE_DRAW_FLAG_DEPTH (1 << 3) -#define IMAGE_DRAW_FLAG_DO_REPEAT (1 << 4) -#define IMAGE_DRAW_FLAG_USE_WORLD_POS (1 << 5) - -static void image_cache_image_add(DRWShadingGroup *grp, Image *image, ImBuf *ibuf) -{ - const DRWContextState *draw_ctx = DRW_context_state_get(); - const ARegion *region = draw_ctx->region; - const char space_type = draw_ctx->space_data->spacetype; - - float zoom_x = 1.0f; - float zoom_y = 1.0f; - float translate_x = 0.0f; - float translate_y = 0.0f; - - /* User can freely move the backdrop in the space of the node editor */ - if (space_type == SPACE_NODE) { - SpaceNode *snode = (SpaceNode *)draw_ctx->space_data; - const float ibuf_width = ibuf->x; - const float ibuf_height = ibuf->y; - const float x = (region->winx - snode->zoom * ibuf_width) / 2 + snode->xof; - const float y = (region->winy - snode->zoom * ibuf_height) / 2 + snode->yof; - - zoom_x = ibuf_width * snode->zoom; - zoom_y = ibuf_height * snode->zoom; - translate_x = x; - translate_y = y; - } - - const bool is_tiled_texture = image && image->source == IMA_SRC_TILED; - float obmat[4][4]; - unit_m4(obmat); - - GPUBatch *geom = DRW_cache_quad_get(); - - obmat[0][0] = zoom_x; - obmat[1][1] = zoom_y; - obmat[3][1] = translate_y; - obmat[3][0] = translate_x; - - if (is_tiled_texture) { - LISTBASE_FOREACH (ImageTile *, tile, &image->tiles) { - const int tile_x = ((tile->tile_number - 1001) % 10); - const int tile_y = ((tile->tile_number - 1001) / 10); - obmat[3][1] = (float)tile_y + translate_y; - obmat[3][0] = (float)tile_x + translate_x; - DRW_shgroup_call_obmat(grp, geom, obmat); - } - } - else { - DRW_shgroup_call_obmat(grp, geom, obmat); - } -} - -static void space_image_gpu_texture_get(Image *image, - ImageUser *iuser, - ImBuf *ibuf, - GPUTexture **r_gpu_texture, - bool *r_owns_texture, - GPUTexture **r_tex_tile_data) -{ - const DRWContextState *draw_ctx = DRW_context_state_get(); - SpaceImage *sima = (SpaceImage *)draw_ctx->space_data; - if (image->rr != NULL) { - /* Update multi-index and pass for the current eye. */ - BKE_image_multilayer_index(image->rr, &sima->iuser); - } - else { - BKE_image_multiview_index(image, &sima->iuser); - } - - if (ibuf == NULL) { - return; - } - - if (ibuf->rect == NULL && ibuf->rect_float == NULL) { - /* This code-path is only supposed to happen when drawing a lazily-allocatable render result. - * In all the other cases the `ED_space_image_acquire_buffer()` is expected to return NULL as - * an image buffer when it has no pixels. */ - - BLI_assert(image->type == IMA_TYPE_R_RESULT); - - float zero[4] = {0, 0, 0, 0}; - *r_gpu_texture = GPU_texture_create_2d(__func__, 1, 1, 0, GPU_RGBA16F, zero); - *r_owns_texture = true; - return; - } - - const int sima_flag = sima->flag & ED_space_image_get_display_channel_mask(ibuf); - if (sima_flag & SI_SHOW_ZBUF && (ibuf->zbuf || ibuf->zbuf_float || (ibuf->channels == 1))) { - if (ibuf->zbuf) { - BLI_assert_msg(0, "Integer based depth buffers not supported"); - } - else if (ibuf->zbuf_float) { - *r_gpu_texture = GPU_texture_create_2d( - __func__, ibuf->x, ibuf->y, 0, GPU_R16F, ibuf->zbuf_float); - *r_owns_texture = true; - } - else if (ibuf->rect_float && ibuf->channels == 1) { - *r_gpu_texture = GPU_texture_create_2d( - __func__, ibuf->x, ibuf->y, 0, GPU_R16F, ibuf->rect_float); - *r_owns_texture = true; - } - } - else if (image->source == IMA_SRC_TILED) { - *r_gpu_texture = BKE_image_get_gpu_tiles(image, iuser, ibuf); - *r_tex_tile_data = BKE_image_get_gpu_tilemap(image, iuser, NULL); - *r_owns_texture = false; - } - else { - *r_gpu_texture = BKE_image_get_gpu_texture(image, iuser, ibuf); - *r_owns_texture = false; - } -} - -static void space_node_gpu_texture_get(Image *image, - ImageUser *iuser, - ImBuf *ibuf, - GPUTexture **r_gpu_texture, - bool *r_owns_texture, - GPUTexture **r_tex_tile_data) -{ - *r_gpu_texture = BKE_image_get_gpu_texture(image, iuser, ibuf); - *r_owns_texture = false; - *r_tex_tile_data = NULL; -} - -static void image_gpu_texture_get(Image *image, - ImageUser *iuser, - ImBuf *ibuf, - GPUTexture **r_gpu_texture, - bool *r_owns_texture, - GPUTexture **r_tex_tile_data) -{ - if (!image) { - return; - } - - const DRWContextState *draw_ctx = DRW_context_state_get(); - const char space_type = draw_ctx->space_data->spacetype; - - if (space_type == SPACE_IMAGE) { - space_image_gpu_texture_get( - image, iuser, ibuf, r_gpu_texture, r_owns_texture, r_tex_tile_data); - } - else if (space_type == SPACE_NODE) { - space_node_gpu_texture_get(image, iuser, ibuf, r_gpu_texture, r_owns_texture, r_tex_tile_data); - } -} - -static void image_cache_image(IMAGE_Data *vedata, Image *image, ImageUser *iuser, ImBuf *ibuf) -{ - IMAGE_PassList *psl = vedata->psl; - IMAGE_StorageList *stl = vedata->stl; - IMAGE_PrivateData *pd = stl->pd; - - const DRWContextState *draw_ctx = DRW_context_state_get(); - const char space_type = draw_ctx->space_data->spacetype; - const Scene *scene = draw_ctx->scene; - - GPUTexture *tex_tile_data = NULL; - image_gpu_texture_get(image, iuser, ibuf, &pd->texture, &pd->owns_texture, &tex_tile_data); - - if (pd->texture) { - static float color[4] = {1.0f, 1.0f, 1.0f, 1.0f}; - static float shuffle[4] = {1.0f, 1.0f, 1.0f, 1.0f}; - static float far_near[2] = {100.0f, 0.0f}; - - if (scene->camera && scene->camera->type == OB_CAMERA) { - far_near[1] = ((Camera *)scene->camera->data)->clip_start; - far_near[0] = ((Camera *)scene->camera->data)->clip_end; - } - - const bool use_premul_alpha = BKE_image_has_gpu_texture_premultiplied_alpha(image, ibuf); - const bool is_tiled_texture = tex_tile_data != NULL; - - int draw_flags = 0; - if (space_type == SPACE_IMAGE) { - SpaceImage *sima = (SpaceImage *)draw_ctx->space_data; - const int sima_flag = sima->flag & ED_space_image_get_display_channel_mask(ibuf); - const bool do_repeat = (!is_tiled_texture) && ((sima->flag & SI_DRAW_TILE) != 0); - SET_FLAG_FROM_TEST(draw_flags, do_repeat, IMAGE_DRAW_FLAG_DO_REPEAT); - SET_FLAG_FROM_TEST(draw_flags, is_tiled_texture, IMAGE_DRAW_FLAG_USE_WORLD_POS); - if ((sima_flag & SI_USE_ALPHA) != 0) { - /* Show RGBA */ - draw_flags |= IMAGE_DRAW_FLAG_SHOW_ALPHA | IMAGE_DRAW_FLAG_APPLY_ALPHA; - } - else if ((sima_flag & SI_SHOW_ALPHA) != 0) { - draw_flags |= IMAGE_DRAW_FLAG_SHUFFLING; - copy_v4_fl4(shuffle, 0.0f, 0.0f, 0.0f, 1.0f); - } - else if ((sima_flag & SI_SHOW_ZBUF) != 0) { - draw_flags |= IMAGE_DRAW_FLAG_DEPTH | IMAGE_DRAW_FLAG_SHUFFLING; - copy_v4_fl4(shuffle, 1.0f, 0.0f, 0.0f, 0.0f); - } - else if ((sima_flag & SI_SHOW_R) != 0) { - draw_flags |= IMAGE_DRAW_FLAG_SHUFFLING; - if (IMB_alpha_affects_rgb(ibuf)) { - draw_flags |= IMAGE_DRAW_FLAG_APPLY_ALPHA; - } - copy_v4_fl4(shuffle, 1.0f, 0.0f, 0.0f, 0.0f); - } - else if ((sima_flag & SI_SHOW_G) != 0) { - draw_flags |= IMAGE_DRAW_FLAG_SHUFFLING; - if (IMB_alpha_affects_rgb(ibuf)) { - draw_flags |= IMAGE_DRAW_FLAG_APPLY_ALPHA; - } - copy_v4_fl4(shuffle, 0.0f, 1.0f, 0.0f, 0.0f); - } - else if ((sima_flag & SI_SHOW_B) != 0) { - draw_flags |= IMAGE_DRAW_FLAG_SHUFFLING; - if (IMB_alpha_affects_rgb(ibuf)) { - draw_flags |= IMAGE_DRAW_FLAG_APPLY_ALPHA; - } - copy_v4_fl4(shuffle, 0.0f, 0.0f, 1.0f, 0.0f); - } - else /* RGB */ { - if (IMB_alpha_affects_rgb(ibuf)) { - draw_flags |= IMAGE_DRAW_FLAG_APPLY_ALPHA; - } - } - } - if (space_type == SPACE_NODE) { - SpaceNode *snode = (SpaceNode *)draw_ctx->space_data; - if ((snode->flag & SNODE_USE_ALPHA) != 0) { - /* Show RGBA */ - draw_flags |= IMAGE_DRAW_FLAG_SHOW_ALPHA | IMAGE_DRAW_FLAG_APPLY_ALPHA; - } - else if ((snode->flag & SNODE_SHOW_ALPHA) != 0) { - draw_flags |= IMAGE_DRAW_FLAG_SHUFFLING; - copy_v4_fl4(shuffle, 0.0f, 0.0f, 0.0f, 1.0f); - } - else if ((snode->flag & SNODE_SHOW_R) != 0) { - draw_flags |= IMAGE_DRAW_FLAG_SHUFFLING; - if (IMB_alpha_affects_rgb(ibuf)) { - draw_flags |= IMAGE_DRAW_FLAG_APPLY_ALPHA; - } - copy_v4_fl4(shuffle, 1.0f, 0.0f, 0.0f, 0.0f); - } - else if ((snode->flag & SNODE_SHOW_G) != 0) { - draw_flags |= IMAGE_DRAW_FLAG_SHUFFLING; - if (IMB_alpha_affects_rgb(ibuf)) { - draw_flags |= IMAGE_DRAW_FLAG_APPLY_ALPHA; - } - copy_v4_fl4(shuffle, 0.0f, 1.0f, 0.0f, 0.0f); - } - else if ((snode->flag & SNODE_SHOW_B) != 0) { - draw_flags |= IMAGE_DRAW_FLAG_SHUFFLING; - if (IMB_alpha_affects_rgb(ibuf)) { - draw_flags |= IMAGE_DRAW_FLAG_APPLY_ALPHA; - } - copy_v4_fl4(shuffle, 0.0f, 0.0f, 1.0f, 0.0f); - } - else /* RGB */ { - if (IMB_alpha_affects_rgb(ibuf)) { - draw_flags |= IMAGE_DRAW_FLAG_APPLY_ALPHA; - } - } - } - - GPUShader *shader = IMAGE_shader_image_get(is_tiled_texture); - DRWShadingGroup *shgrp = DRW_shgroup_create(shader, psl->image_pass); - if (is_tiled_texture) { - DRW_shgroup_uniform_texture_ex(shgrp, "imageTileArray", pd->texture, 0); - DRW_shgroup_uniform_texture(shgrp, "imageTileData", tex_tile_data); - } - else { - DRW_shgroup_uniform_texture_ex(shgrp, "imageTexture", pd->texture, 0); - } - DRW_shgroup_uniform_vec2_copy(shgrp, "farNearDistances", far_near); - DRW_shgroup_uniform_vec4_copy(shgrp, "color", color); - DRW_shgroup_uniform_vec4_copy(shgrp, "shuffle", shuffle); - DRW_shgroup_uniform_int_copy(shgrp, "drawFlags", draw_flags); - DRW_shgroup_uniform_bool_copy(shgrp, "imgPremultiplied", use_premul_alpha); - image_cache_image_add(shgrp, image, ibuf); - } -} - -/* -------------------------------------------------------------------- */ -/** \name Engine Callbacks - * \{ */ - -static void IMAGE_engine_init(void *ved) -{ - IMAGE_shader_library_ensure(); - IMAGE_Data *vedata = (IMAGE_Data *)ved; - IMAGE_StorageList *stl = vedata->stl; - if (!stl->pd) { - stl->pd = MEM_callocN(sizeof(IMAGE_PrivateData), __func__); - } - IMAGE_PrivateData *pd = stl->pd; - - pd->ibuf = NULL; - pd->lock = NULL; - pd->texture = NULL; -} - -static void IMAGE_cache_init(void *ved) -{ - IMAGE_Data *vedata = (IMAGE_Data *)ved; - IMAGE_StorageList *stl = vedata->stl; - IMAGE_PrivateData *pd = stl->pd; - IMAGE_PassList *psl = vedata->psl; - const DRWContextState *draw_ctx = DRW_context_state_get(); - - { - /* Write depth is needed for background overlay rendering. Near depth is used for - * transparency checker and Far depth is used for indicating the image size. */ - DRWState state = DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_ALWAYS | - DRW_STATE_BLEND_ALPHA_PREMUL; - psl->image_pass = DRW_pass_create("Image", state); - } - - const SpaceLink *space_link = draw_ctx->space_data; - const char space_type = space_link->spacetype; - pd->view = NULL; - if (space_type == SPACE_IMAGE) { - SpaceImage *sima = (SpaceImage *)draw_ctx->space_data; - Image *image = ED_space_image(sima); - ImBuf *ibuf = ED_space_image_acquire_buffer(sima, &pd->lock, 0); - image_cache_image(vedata, image, &sima->iuser, ibuf); - pd->image = image; - pd->ibuf = ibuf; - } - else if (space_type == SPACE_NODE) { - ARegion *region = draw_ctx->region; - Main *bmain = CTX_data_main(draw_ctx->evil_C); - Image *image = BKE_image_ensure_viewer(bmain, IMA_TYPE_COMPOSITE, "Viewer Node"); - ImBuf *ibuf = BKE_image_acquire_ibuf(image, NULL, &pd->lock); - { - /* Setup a screen pixel view. The backdrop of the node editor doesn't follow the region. */ - float winmat[4][4], viewmat[4][4]; - orthographic_m4(viewmat, 0.0, region->winx, 0.0, region->winy, 0.0, 1.0); - unit_m4(winmat); - pd->view = DRW_view_create(viewmat, winmat, NULL, NULL, NULL); - } - image_cache_image(vedata, image, NULL, ibuf); - pd->image = image; - pd->ibuf = ibuf; - } -} - -static void IMAGE_cache_populate(void *UNUSED(vedata), Object *UNUSED(ob)) -{ - /* Function intentional left empty. `cache_populate` is required to be implemented. */ -} - -static void image_draw_finish(IMAGE_Data *ved) -{ - IMAGE_Data *vedata = (IMAGE_Data *)ved; - IMAGE_StorageList *stl = vedata->stl; - IMAGE_PrivateData *pd = stl->pd; - const DRWContextState *draw_ctx = DRW_context_state_get(); - const char space_type = draw_ctx->space_data->spacetype; - if (space_type == SPACE_IMAGE) { - SpaceImage *sima = (SpaceImage *)draw_ctx->space_data; - ED_space_image_release_buffer(sima, pd->ibuf, pd->lock); - } - else if (space_type == SPACE_NODE) { - BKE_image_release_ibuf(pd->image, pd->ibuf, pd->lock); - } - pd->image = NULL; - pd->ibuf = NULL; - - if (pd->texture && pd->owns_texture) { - GPU_texture_free(pd->texture); - pd->owns_texture = false; - } - pd->texture = NULL; -} - -static void IMAGE_draw_scene(void *ved) -{ - IMAGE_Data *vedata = (IMAGE_Data *)ved; - IMAGE_PassList *psl = vedata->psl; - IMAGE_PrivateData *pd = vedata->stl->pd; - - DefaultFramebufferList *dfbl = DRW_viewport_framebuffer_list_get(); - GPU_framebuffer_bind(dfbl->default_fb); - static float clear_col[4] = {0.0f, 0.0f, 0.0f, 0.0f}; - GPU_framebuffer_clear_color_depth(dfbl->default_fb, clear_col, 1.0); - - DRW_view_set_active(pd->view); - DRW_draw_pass(psl->image_pass); - DRW_view_set_active(NULL); - image_draw_finish(vedata); -} - -static void IMAGE_engine_free(void) -{ - IMAGE_shader_free(); -} - -/** \} */ - -static const DrawEngineDataSize IMAGE_data_size = DRW_VIEWPORT_DATA_SIZE(IMAGE_Data); - -DrawEngineType draw_engine_image_type = { - NULL, /* next */ - NULL, /* prev */ - N_("UV/Image"), /* idname */ - &IMAGE_data_size, /* vedata_size */ - &IMAGE_engine_init, /* engine_init */ - &IMAGE_engine_free, /* engine_free */ - &IMAGE_cache_init, /* cache_init */ - &IMAGE_cache_populate, /* cache_populate */ - NULL, /* cache_finish */ - &IMAGE_draw_scene, /* draw_scene */ - NULL, /* view_update */ - NULL, /* id_update */ - NULL, /* render_to_image */ - NULL, /* store_metadata */ -}; |