Differential D13193 Diff 52736 source/blender/editors/render/render_preview.cc

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source/blender/editors/render/render_preview.cc

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#include "PIL_time.h"		#include "PIL_time.h"

#include "BLO_readfile.h"		#include "BLO_readfile.h"

#include "DNA_brush_types.h"		#include "DNA_brush_types.h"
#include "DNA_camera_types.h"		#include "DNA_camera_types.h"
#include "DNA_collection_types.h"		#include "DNA_collection_types.h"
		#include "DNA_gpencil_types.h"
#include "DNA_light_types.h"		#include "DNA_light_types.h"
#include "DNA_material_types.h"		#include "DNA_material_types.h"
#include "DNA_mesh_types.h"		#include "DNA_mesh_types.h"
#include "DNA_node_types.h"		#include "DNA_node_types.h"
#include "DNA_object_types.h"		#include "DNA_object_types.h"
#include "DNA_scene_types.h"		#include "DNA_scene_types.h"
#include "DNA_screen_types.h"		#include "DNA_screen_types.h"
#include "DNA_space_types.h"		#include "DNA_space_types.h"
#include "DNA_world_types.h"		#include "DNA_world_types.h"

#include "BKE_animsys.h"		#include "BKE_animsys.h"
#include "BKE_appdir.h"		#include "BKE_appdir.h"
#include "BKE_armature.h"		#include "BKE_armature.h"
#include "BKE_brush.h"		#include "BKE_brush.h"
#include "BKE_colortools.h"		#include "BKE_colortools.h"
#include "BKE_context.h"		#include "BKE_context.h"
#include "BKE_global.h"		#include "BKE_global.h"
		#include "BKE_gpencil.h"
#include "BKE_icons.h"		#include "BKE_icons.h"
#include "BKE_idprop.h"		#include "BKE_idprop.h"
#include "BKE_image.h"		#include "BKE_image.h"
#include "BKE_layer.h"		#include "BKE_layer.h"
#include "BKE_lib_id.h"		#include "BKE_lib_id.h"
#include "BKE_light.h"		#include "BKE_light.h"
#include "BKE_main.h"		#include "BKE_main.h"
#include "BKE_material.h"		#include "BKE_material.h"
▲ Show 20 Lines • Show All 302 Lines • ▼ Show 20 Lines	if (id == nullptr) {
return nullptr;		return nullptr;
}		}

switch (GS(id->name)) {		switch (GS(id->name)) {
case ID_OB:		case ID_OB:
case ID_MA:		case ID_MA:
case ID_TE:		case ID_TE:
case ID_LA:		case ID_LA:
		case ID_GD:
case ID_WO: {		case ID_WO: {
BLI_assert(BKE_previewimg_id_supports_jobs(id));		BLI_assert(BKE_previewimg_id_supports_jobs(id));
ID *id_copy = BKE_id_copy_ex(nullptr,		ID *id_copy = BKE_id_copy_ex(nullptr,
id,		id,
nullptr,		nullptr,
LIB_ID_CREATE_LOCAL \| LIB_ID_COPY_LOCALIZE \|		LIB_ID_CREATE_LOCAL \| LIB_ID_COPY_LOCALIZE \|
LIB_ID_COPY_NO_ANIMDATA);		LIB_ID_COPY_NO_ANIMDATA);
return id_copy;		return id_copy;
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* \{ */		* \{ */

struct ObjectPreviewData {		struct ObjectPreviewData {
/* The main for the preview, not of the current file. */		/* The main for the preview, not of the current file. */
Main *pr_main;		Main *pr_main;
/* Copy of the object to create the preview for. The copy is for thread safety (and to insert		/* Copy of the object to create the preview for. The copy is for thread safety (and to insert
* it into its own main). */		* it into its own main). */
Object *object;		Object *object;
		/* Datablock copy. Can be nullptr. */
		ID *datablock;
/* Current frame. */		/* Current frame. */
int cfra;		int cfra;
int sizex;		int sizex;
int sizey;		int sizey;
};		};

static bool object_preview_is_type_supported(const Object *ob)		static bool object_preview_is_type_supported(const Object *ob)
{		{
▲ Show 20 Lines • Show All 72 Lines • ▼ Show 20 Lines	static void object_preview_render(IconPreview preview, IconPreviewSize preview_sized)
char err_out[256] = "unknown";		char err_out[256] = "unknown";

BLI_assert(preview->id_copy && (preview->id_copy != preview->id));		BLI_assert(preview->id_copy && (preview->id_copy != preview->id));

struct ObjectPreviewData preview_data = {};		struct ObjectPreviewData preview_data = {};
preview_data.pr_main = preview_main;		preview_data.pr_main = preview_main;
/* Act on a copy. */		/* Act on a copy. */
preview_data.object = (Object *)preview->id_copy;		preview_data.object = (Object *)preview->id_copy;
preview_data.cfra = preview->scene->r.cfra;		preview_data.datablock = nullptr;
preview_data.sizex = preview_sized->sizex;		preview_data.sizex = preview_sized->sizex;
preview_data.sizey = preview_sized->sizey;		preview_data.sizey = preview_sized->sizey;

Depsgraph *depsgraph;		Depsgraph *depsgraph;
Scene *scene = object_preview_scene_create(&preview_data, &depsgraph);		Scene *scene = object_preview_scene_create(&preview_data, &depsgraph);

/* Ownership is now ours. */		/* Ownership is now ours. */
preview->id_copy = nullptr;		preview->id_copy = nullptr;
▲ Show 20 Lines • Show All 163 Lines • ▼ Show 20 Lines	if (ibuf) {
icon_copy_rect(ibuf, preview_sized->sizex, preview_sized->sizey, preview_sized->rect);		icon_copy_rect(ibuf, preview_sized->sizex, preview_sized->sizey, preview_sized->rect);
IMB_freeImBuf(ibuf);		IMB_freeImBuf(ibuf);
}		}
}		}

/** \} */		/** \} */

/* -------------------------------------------------------------------- */		/* -------------------------------------------------------------------- */
		/** \name Grease Pencil Preview
		* \{ */

		static Scene gpencil_preview_scene_create(const struct ObjectPreviewData preview_data,
		Depsgraph **r_depsgraph)
		{
		Scene *scene = BKE_scene_add(preview_data->pr_main, "Object preview scene");
		/* Grease pencil needs to set the scene to the current frame or the strokes
		* will not be visible in the preview. */
		CFRA = preview_data->cfra;
		ViewLayer view_layer = (ViewLayer )scene->view_layers.first;
		Depsgraph *depsgraph = DEG_graph_new(
		preview_data->pr_main, scene, view_layer, DAG_EVAL_VIEWPORT);

		/* Grease pencil draw engine needs an object to draw the datablock. */
		Object *ob_temp = BKE_object_add_for_data(preview_data->pr_main,
		view_layer,
		OB_GPENCIL,
		"preview_object",
		preview_data->datablock,
		true);
		BLI_assert(ob_temp != nullptr);
		/* Copy the materials to get full color previews. */
		const short *materials_len_p = BKE_id_material_len_p(preview_data->datablock);
		if (materials_len_p && *materials_len_p > 0) {
		BKE_object_materials_test(preview_data->pr_main, ob_temp, preview_data->datablock);
		}

		Object *camera_object = object_preview_camera_create(preview_data->pr_main, view_layer, ob_temp);

		scene->camera = camera_object;
		scene->r.xsch = preview_data->sizex;
		scene->r.ysch = preview_data->sizey;
		scene->r.size = 100;

		Base *preview_base = BKE_view_layer_base_find(view_layer, ob_temp);
		/* For 'view selected' below. */
		preview_base->flag \|= BASE_SELECTED;

		DEG_graph_build_from_view_layer(depsgraph);
		DEG_evaluate_on_refresh(depsgraph);

		ED_view3d_camera_to_view_selected(preview_data->pr_main, depsgraph, scene, camera_object);

		BKE_scene_graph_update_tagged(depsgraph, preview_data->pr_main);

		*r_depsgraph = depsgraph;
		return scene;
		}

		/* Render a grease pencil datablock. As the Draw Engine needs an object, the datablock is assigned
		* to a temporary object, just for render. */
		static void gpencil_preview_render(IconPreview preview, IconPreviewSize preview_sized)
		{
		Main *preview_main = BKE_main_new();
		const float pixelsize_old = U.pixelsize;
		char err_out[256] = "unknown";

		BLI_assert(preview->id_copy && (preview->id_copy != preview->id));

		/* Find the frame number to make preview visible. */
		int f_min, f_max;
		bGPdata gpd = (bGPdata )preview->id_copy;
		BKE_gpencil_frame_min_max(gpd, &f_min, &f_max);
		const int framenum = ((preview->scene->r.cfra < f_min) \|\| (preview->scene->r.cfra > f_max)) ?
		f_min :
		preview->scene->r.cfra;

		struct ObjectPreviewData preview_data = {};
		preview_data.pr_main = preview_main;
		/* Act on a copy. */
		preview_data.object = nullptr;
		preview_data.datablock = (ID *)preview->id_copy;
		preview_data.cfra = framenum;
		preview_data.sizex = preview_sized->sizex;
		preview_data.sizey = preview_sized->sizey;

		Depsgraph *depsgraph;
		Scene *scene = gpencil_preview_scene_create(&preview_data, &depsgraph);

		U.pixelsize = 2.0f;

		View3DShading shading;
		BKE_screen_view3d_shading_init(&shading);

		ImBuf *ibuf = ED_view3d_draw_offscreen_imbuf_simple(
		depsgraph,
		DEG_get_evaluated_scene(depsgraph),
		&shading,
		OB_TEXTURE,
		DEG_get_evaluated_object(depsgraph, scene->camera),
		preview_sized->sizex,
		preview_sized->sizey,
		IB_rect,
		V3D_OFSDRAW_OVERRIDE_SCENE_SETTINGS,
		R_ALPHAPREMUL,
		nullptr,
		nullptr,
		err_out);

		U.pixelsize = pixelsize_old;

		if (ibuf) {
		icon_copy_rect(ibuf, preview_sized->sizex, preview_sized->sizey, preview_sized->rect);
		IMB_freeImBuf(ibuf);
		}

		DEG_graph_free(depsgraph);
		BKE_main_free(preview_main);
		}
		/** \} */

		/* -------------------------------------------------------------------- */
/** \name New Shader Preview System		/** \name New Shader Preview System
* \{ */		* \{ */

/* inside thread, called by renderer, sets job update value */		/* inside thread, called by renderer, sets job update value */
static void shader_preview_update(void spv, RenderResult UNUSED(rr), struct rcti *UNUSED(rect))		static void shader_preview_update(void spv, RenderResult UNUSED(rr), struct rcti *UNUSED(rect))
{		{
ShaderPreview sp = static_cast<ShaderPreview >(spv);		ShaderPreview sp = static_cast<ShaderPreview >(spv);

▲ Show 20 Lines • Show All 587 Lines • ▼ Show 20 Lines	if (ip->id != nullptr) {
BLI_assert(collection_preview_contains_geometry_recursive((Collection *)ip->id));		BLI_assert(collection_preview_contains_geometry_recursive((Collection *)ip->id));
/* A collection instance empty was created, so this can just reuse the object preview		/* A collection instance empty was created, so this can just reuse the object preview
* rendering. */		* rendering. */
object_preview_render(ip, cur_size);		object_preview_render(ip, cur_size);
continue;		continue;
case ID_AC:		case ID_AC:
action_preview_render(ip, cur_size);		action_preview_render(ip, cur_size);
continue;		continue;
		case ID_GD:
		gpencil_preview_render(ip, cur_size);
		continue;
default:		default:
/* Fall through to the same code as the `ip->id == nullptr` case. */		/* Fall through to the same code as the `ip->id == nullptr` case. */
break;		break;
}		}
}		}
other_id_types_preview_render(ip, cur_size, pr_method, stop, do_update, progress);		other_id_types_preview_render(ip, cur_size, pr_method, stop, do_update, progress);
}		}
}		}
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