minetest/src/wieldmesh.cpp
Loïc Blot 3e50850260 TileLayer: use shared_ptr for FrameSpec vector (#6171)
* TileLayer: use shared_ptr for vector framespec
This reduce memory copy of TileLayer from (4 to 16) * FrameSpec where FrameSpec = (sizeof(int) + 3 * sizeof(ptr)) to int + sizeof(ptr)

Callgrind difference

Before: https://lut.im/RGkiJqQb8T/LeQIEXpAuRzfl7gd.png
After: https://lut.im/bcqmwee1xu/cTwtptY5tRuS9lp0.png

* Fix one push_back to use vector::emplace_back & optimize inclusions
2017-07-26 20:12:48 +02:00

614 lines
19 KiB
C++

/*
Minetest
Copyright (C) 2010-2014 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser 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.
*/
#include "settings.h"
#include "wieldmesh.h"
#include "inventory.h"
#include "client.h"
#include "itemdef.h"
#include "nodedef.h"
#include "mesh.h"
#include "mapblock_mesh.h"
#include "client/tile.h"
#include "log.h"
#include "util/numeric.h"
#include <map>
#include <IMeshManipulator.h>
#define WIELD_SCALE_FACTOR 30.0
#define WIELD_SCALE_FACTOR_EXTRUDED 40.0
#define MIN_EXTRUSION_MESH_RESOLUTION 16
#define MAX_EXTRUSION_MESH_RESOLUTION 512
static scene::IMesh *createExtrusionMesh(int resolution_x, int resolution_y)
{
const f32 r = 0.5;
scene::IMeshBuffer *buf = new scene::SMeshBuffer();
video::SColor c(255,255,255,255);
v3f scale(1.0, 1.0, 0.1);
// Front and back
{
video::S3DVertex vertices[8] = {
// z-
video::S3DVertex(-r,+r,-r, 0,0,-1, c, 0,0),
video::S3DVertex(+r,+r,-r, 0,0,-1, c, 1,0),
video::S3DVertex(+r,-r,-r, 0,0,-1, c, 1,1),
video::S3DVertex(-r,-r,-r, 0,0,-1, c, 0,1),
// z+
video::S3DVertex(-r,+r,+r, 0,0,+1, c, 0,0),
video::S3DVertex(-r,-r,+r, 0,0,+1, c, 0,1),
video::S3DVertex(+r,-r,+r, 0,0,+1, c, 1,1),
video::S3DVertex(+r,+r,+r, 0,0,+1, c, 1,0),
};
u16 indices[12] = {0,1,2,2,3,0,4,5,6,6,7,4};
buf->append(vertices, 8, indices, 12);
}
f32 pixelsize_x = 1 / (f32) resolution_x;
f32 pixelsize_y = 1 / (f32) resolution_y;
for (int i = 0; i < resolution_x; ++i) {
f32 pixelpos_x = i * pixelsize_x - 0.5;
f32 x0 = pixelpos_x;
f32 x1 = pixelpos_x + pixelsize_x;
f32 tex0 = (i + 0.1) * pixelsize_x;
f32 tex1 = (i + 0.9) * pixelsize_x;
video::S3DVertex vertices[8] = {
// x-
video::S3DVertex(x0,-r,-r, -1,0,0, c, tex0,1),
video::S3DVertex(x0,-r,+r, -1,0,0, c, tex1,1),
video::S3DVertex(x0,+r,+r, -1,0,0, c, tex1,0),
video::S3DVertex(x0,+r,-r, -1,0,0, c, tex0,0),
// x+
video::S3DVertex(x1,-r,-r, +1,0,0, c, tex0,1),
video::S3DVertex(x1,+r,-r, +1,0,0, c, tex0,0),
video::S3DVertex(x1,+r,+r, +1,0,0, c, tex1,0),
video::S3DVertex(x1,-r,+r, +1,0,0, c, tex1,1),
};
u16 indices[12] = {0,1,2,2,3,0,4,5,6,6,7,4};
buf->append(vertices, 8, indices, 12);
}
for (int i = 0; i < resolution_y; ++i) {
f32 pixelpos_y = i * pixelsize_y - 0.5;
f32 y0 = -pixelpos_y - pixelsize_y;
f32 y1 = -pixelpos_y;
f32 tex0 = (i + 0.1) * pixelsize_y;
f32 tex1 = (i + 0.9) * pixelsize_y;
video::S3DVertex vertices[8] = {
// y-
video::S3DVertex(-r,y0,-r, 0,-1,0, c, 0,tex0),
video::S3DVertex(+r,y0,-r, 0,-1,0, c, 1,tex0),
video::S3DVertex(+r,y0,+r, 0,-1,0, c, 1,tex1),
video::S3DVertex(-r,y0,+r, 0,-1,0, c, 0,tex1),
// y+
video::S3DVertex(-r,y1,-r, 0,+1,0, c, 0,tex0),
video::S3DVertex(-r,y1,+r, 0,+1,0, c, 0,tex1),
video::S3DVertex(+r,y1,+r, 0,+1,0, c, 1,tex1),
video::S3DVertex(+r,y1,-r, 0,+1,0, c, 1,tex0),
};
u16 indices[12] = {0,1,2,2,3,0,4,5,6,6,7,4};
buf->append(vertices, 8, indices, 12);
}
// Create mesh object
scene::SMesh *mesh = new scene::SMesh();
mesh->addMeshBuffer(buf);
buf->drop();
scaleMesh(mesh, scale); // also recalculates bounding box
return mesh;
}
/*
Caches extrusion meshes so that only one of them per resolution
is needed. Also caches one cube (for convenience).
E.g. there is a single extrusion mesh that is used for all
16x16 px images, another for all 256x256 px images, and so on.
WARNING: Not thread safe. This should not be a problem since
rendering related classes (such as WieldMeshSceneNode) will be
used from the rendering thread only.
*/
class ExtrusionMeshCache: public IReferenceCounted
{
public:
// Constructor
ExtrusionMeshCache()
{
for (int resolution = MIN_EXTRUSION_MESH_RESOLUTION;
resolution <= MAX_EXTRUSION_MESH_RESOLUTION;
resolution *= 2) {
m_extrusion_meshes[resolution] =
createExtrusionMesh(resolution, resolution);
}
m_cube = createCubeMesh(v3f(1.0, 1.0, 1.0));
}
// Destructor
virtual ~ExtrusionMeshCache()
{
for (std::map<int, scene::IMesh*>::iterator
it = m_extrusion_meshes.begin();
it != m_extrusion_meshes.end(); ++it) {
it->second->drop();
}
m_cube->drop();
}
// Get closest extrusion mesh for given image dimensions
// Caller must drop the returned pointer
scene::IMesh* create(core::dimension2d<u32> dim)
{
// handle non-power of two textures inefficiently without cache
if (!is_power_of_two(dim.Width) || !is_power_of_two(dim.Height)) {
return createExtrusionMesh(dim.Width, dim.Height);
}
int maxdim = MYMAX(dim.Width, dim.Height);
std::map<int, scene::IMesh*>::iterator
it = m_extrusion_meshes.lower_bound(maxdim);
if (it == m_extrusion_meshes.end()) {
// no viable resolution found; use largest one
it = m_extrusion_meshes.find(MAX_EXTRUSION_MESH_RESOLUTION);
sanity_check(it != m_extrusion_meshes.end());
}
scene::IMesh *mesh = it->second;
mesh->grab();
return mesh;
}
// Returns a 1x1x1 cube mesh with one meshbuffer (material) per face
// Caller must drop the returned pointer
scene::IMesh* createCube()
{
m_cube->grab();
return m_cube;
}
private:
std::map<int, scene::IMesh*> m_extrusion_meshes;
scene::IMesh *m_cube;
};
ExtrusionMeshCache *g_extrusion_mesh_cache = NULL;
WieldMeshSceneNode::WieldMeshSceneNode(scene::ISceneManager *mgr, s32 id, bool lighting):
scene::ISceneNode(mgr->getRootSceneNode(), mgr, id),
m_material_type(video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF),
m_lighting(lighting)
{
m_enable_shaders = g_settings->getBool("enable_shaders");
m_anisotropic_filter = g_settings->getBool("anisotropic_filter");
m_bilinear_filter = g_settings->getBool("bilinear_filter");
m_trilinear_filter = g_settings->getBool("trilinear_filter");
// If this is the first wield mesh scene node, create a cache
// for extrusion meshes (and a cube mesh), otherwise reuse it
if (!g_extrusion_mesh_cache)
g_extrusion_mesh_cache = new ExtrusionMeshCache();
else
g_extrusion_mesh_cache->grab();
// Disable bounding box culling for this scene node
// since we won't calculate the bounding box.
setAutomaticCulling(scene::EAC_OFF);
// Create the child scene node
scene::IMesh *dummymesh = g_extrusion_mesh_cache->createCube();
m_meshnode = SceneManager->addMeshSceneNode(dummymesh, this, -1);
m_meshnode->setReadOnlyMaterials(false);
m_meshnode->setVisible(false);
dummymesh->drop(); // m_meshnode grabbed it
}
WieldMeshSceneNode::~WieldMeshSceneNode()
{
sanity_check(g_extrusion_mesh_cache);
if (g_extrusion_mesh_cache->drop())
g_extrusion_mesh_cache = nullptr;
}
void WieldMeshSceneNode::setCube(const ContentFeatures &f,
v3f wield_scale)
{
scene::IMesh *cubemesh = g_extrusion_mesh_cache->createCube();
scene::SMesh *copy = cloneMesh(cubemesh);
cubemesh->drop();
postProcessNodeMesh(copy, f, false, true, &m_material_type, &m_colors);
changeToMesh(copy);
copy->drop();
m_meshnode->setScale(wield_scale * WIELD_SCALE_FACTOR);
}
void WieldMeshSceneNode::setExtruded(const std::string &imagename,
v3f wield_scale, ITextureSource *tsrc, u8 num_frames)
{
video::ITexture *texture = tsrc->getTexture(imagename);
if (!texture) {
changeToMesh(nullptr);
return;
}
core::dimension2d<u32> dim = texture->getSize();
// Detect animation texture and pull off top frame instead of using entire thing
if (num_frames > 1) {
u32 frame_height = dim.Height / num_frames;
dim = core::dimension2d<u32>(dim.Width, frame_height);
}
scene::IMesh *mesh = g_extrusion_mesh_cache->create(dim);
scene::SMesh *copy = cloneMesh(mesh);
mesh->drop();
changeToMesh(copy);
copy->drop();
m_meshnode->setScale(wield_scale * WIELD_SCALE_FACTOR_EXTRUDED);
// Customize material
video::SMaterial &material = m_meshnode->getMaterial(0);
material.setTexture(0, tsrc->getTextureForMesh(imagename));
material.TextureLayer[0].TextureWrapU = video::ETC_CLAMP_TO_EDGE;
material.TextureLayer[0].TextureWrapV = video::ETC_CLAMP_TO_EDGE;
material.MaterialType = m_material_type;
material.setFlag(video::EMF_BACK_FACE_CULLING, true);
// Enable bi/trilinear filtering only for high resolution textures
if (dim.Width > 32) {
material.setFlag(video::EMF_BILINEAR_FILTER, m_bilinear_filter);
material.setFlag(video::EMF_TRILINEAR_FILTER, m_trilinear_filter);
} else {
material.setFlag(video::EMF_BILINEAR_FILTER, false);
material.setFlag(video::EMF_TRILINEAR_FILTER, false);
}
material.setFlag(video::EMF_ANISOTROPIC_FILTER, m_anisotropic_filter);
// mipmaps cause "thin black line" artifacts
#if (IRRLICHT_VERSION_MAJOR >= 1 && IRRLICHT_VERSION_MINOR >= 8) || IRRLICHT_VERSION_MAJOR >= 2
material.setFlag(video::EMF_USE_MIP_MAPS, false);
#endif
if (m_enable_shaders) {
material.setTexture(2, tsrc->getShaderFlagsTexture(false));
}
}
void WieldMeshSceneNode::setItem(const ItemStack &item, Client *client)
{
ITextureSource *tsrc = client->getTextureSource();
IItemDefManager *idef = client->getItemDefManager();
IShaderSource *shdrsrc = client->getShaderSource();
INodeDefManager *ndef = client->getNodeDefManager();
const ItemDefinition &def = item.getDefinition(idef);
const ContentFeatures &f = ndef->get(def.name);
content_t id = ndef->getId(def.name);
if (m_enable_shaders) {
u32 shader_id = shdrsrc->getShader("wielded_shader", TILE_MATERIAL_BASIC, NDT_NORMAL);
m_material_type = shdrsrc->getShaderInfo(shader_id).material;
}
// Color-related
m_colors.clear();
m_base_color = idef->getItemstackColor(item, client);
// If wield_image is defined, it overrides everything else
if (def.wield_image != "") {
setExtruded(def.wield_image, def.wield_scale, tsrc, 1);
m_colors.push_back(ItemPartColor());
return;
}
// Handle nodes
// See also CItemDefManager::createClientCached()
else if (def.type == ITEM_NODE) {
if (f.mesh_ptr[0]) {
// e.g. mesh nodes and nodeboxes
scene::SMesh *mesh = cloneMesh(f.mesh_ptr[0]);
postProcessNodeMesh(mesh, f, m_enable_shaders, true,
&m_material_type, &m_colors);
changeToMesh(mesh);
mesh->drop();
// mesh is pre-scaled by BS * f->visual_scale
m_meshnode->setScale(
def.wield_scale * WIELD_SCALE_FACTOR
/ (BS * f.visual_scale));
} else {
switch (f.drawtype) {
case NDT_AIRLIKE: {
changeToMesh(nullptr);
break;
}
case NDT_PLANTLIKE: {
setExtruded(tsrc->getTextureName(f.tiles[0].layers[0].texture_id),
def.wield_scale, tsrc,
f.tiles[0].layers[0].animation_frame_count);
break;
}
case NDT_PLANTLIKE_ROOTED: {
setExtruded(tsrc->getTextureName(f.special_tiles[0].layers[0].texture_id),
def.wield_scale, tsrc,
f.special_tiles[0].layers[0].animation_frame_count);
break;
}
case NDT_NORMAL:
case NDT_ALLFACES: {
setCube(f, def.wield_scale);
break;
}
default: {
MeshMakeData mesh_make_data(client, false);
MapNode mesh_make_node(id, 255, 0);
mesh_make_data.fillSingleNode(&mesh_make_node);
MapBlockMesh mapblock_mesh(&mesh_make_data, v3s16(0, 0, 0));
scene::SMesh *mesh = cloneMesh(mapblock_mesh.getMesh());
translateMesh(mesh, v3f(-BS, -BS, -BS));
postProcessNodeMesh(mesh, f, m_enable_shaders, true,
&m_material_type, &m_colors);
changeToMesh(mesh);
mesh->drop();
m_meshnode->setScale(
def.wield_scale * WIELD_SCALE_FACTOR
/ (BS * f.visual_scale));
}
}
}
u32 material_count = m_meshnode->getMaterialCount();
for (u32 i = 0; i < material_count; ++i) {
video::SMaterial &material = m_meshnode->getMaterial(i);
material.setFlag(video::EMF_BACK_FACE_CULLING, true);
material.setFlag(video::EMF_BILINEAR_FILTER, m_bilinear_filter);
material.setFlag(video::EMF_TRILINEAR_FILTER, m_trilinear_filter);
}
return;
}
else if (def.inventory_image != "") {
setExtruded(def.inventory_image, def.wield_scale, tsrc, 1);
m_colors.push_back(ItemPartColor());
return;
}
// no wield mesh found
changeToMesh(nullptr);
}
void WieldMeshSceneNode::setColor(video::SColor c)
{
assert(!m_lighting);
scene::IMesh *mesh = m_meshnode->getMesh();
if (!mesh)
return;
u8 red = c.getRed();
u8 green = c.getGreen();
u8 blue = c.getBlue();
u32 mc = mesh->getMeshBufferCount();
for (u32 j = 0; j < mc; j++) {
video::SColor bc(m_base_color);
if ((m_colors.size() > j) && (m_colors[j].override_base))
bc = m_colors[j].color;
video::SColor buffercolor(255,
bc.getRed() * red / 255,
bc.getGreen() * green / 255,
bc.getBlue() * blue / 255);
scene::IMeshBuffer *buf = mesh->getMeshBuffer(j);
colorizeMeshBuffer(buf, &buffercolor);
}
}
void WieldMeshSceneNode::render()
{
// note: if this method is changed to actually do something,
// you probably should implement OnRegisterSceneNode as well
}
void WieldMeshSceneNode::changeToMesh(scene::IMesh *mesh)
{
if (!mesh) {
scene::IMesh *dummymesh = g_extrusion_mesh_cache->createCube();
m_meshnode->setVisible(false);
m_meshnode->setMesh(dummymesh);
dummymesh->drop(); // m_meshnode grabbed it
} else {
m_meshnode->setMesh(mesh);
}
m_meshnode->setMaterialFlag(video::EMF_LIGHTING, m_lighting);
// need to normalize normals when lighting is enabled (because of setScale())
m_meshnode->setMaterialFlag(video::EMF_NORMALIZE_NORMALS, m_lighting);
m_meshnode->setVisible(true);
}
void getItemMesh(Client *client, const ItemStack &item, ItemMesh *result)
{
ITextureSource *tsrc = client->getTextureSource();
IItemDefManager *idef = client->getItemDefManager();
INodeDefManager *ndef = client->getNodeDefManager();
const ItemDefinition &def = item.getDefinition(idef);
const ContentFeatures &f = ndef->get(def.name);
content_t id = ndef->getId(def.name);
if (!g_extrusion_mesh_cache) {
g_extrusion_mesh_cache = new ExtrusionMeshCache();
} else {
g_extrusion_mesh_cache->grab();
}
scene::SMesh *mesh = nullptr;
// Shading is on by default
result->needs_shading = true;
// If inventory_image is defined, it overrides everything else
if (def.inventory_image != "") {
mesh = getExtrudedMesh(tsrc, def.inventory_image);
result->buffer_colors.push_back(ItemPartColor());
// Items with inventory images do not need shading
result->needs_shading = false;
} else if (def.type == ITEM_NODE) {
if (f.mesh_ptr[0]) {
mesh = cloneMesh(f.mesh_ptr[0]);
scaleMesh(mesh, v3f(0.12, 0.12, 0.12));
} else {
switch (f.drawtype) {
case NDT_PLANTLIKE: {
mesh = getExtrudedMesh(tsrc,
tsrc->getTextureName(f.tiles[0].layers[0].texture_id));
break;
}
case NDT_PLANTLIKE_ROOTED: {
mesh = getExtrudedMesh(tsrc,
tsrc->getTextureName(f.special_tiles[0].layers[0].texture_id));
break;
}
case NDT_NORMAL:
case NDT_ALLFACES:
case NDT_LIQUID:
case NDT_FLOWINGLIQUID: {
scene::IMesh *cube = g_extrusion_mesh_cache->createCube();
mesh = cloneMesh(cube);
cube->drop();
scaleMesh(mesh, v3f(1.2, 1.2, 1.2));
break;
}
default: {
MeshMakeData mesh_make_data(client, false);
MapNode mesh_make_node(id, 255, 0);
mesh_make_data.fillSingleNode(&mesh_make_node);
MapBlockMesh mapblock_mesh(&mesh_make_data, v3s16(0, 0, 0));
mesh = cloneMesh(mapblock_mesh.getMesh());
translateMesh(mesh, v3f(-BS, -BS, -BS));
scaleMesh(mesh, v3f(0.12, 0.12, 0.12));
u32 mc = mesh->getMeshBufferCount();
for (u32 i = 0; i < mc; ++i) {
video::SMaterial &material1 =
mesh->getMeshBuffer(i)->getMaterial();
video::SMaterial &material2 =
mapblock_mesh.getMesh()->getMeshBuffer(i)->getMaterial();
material1.setTexture(0, material2.getTexture(0));
material1.setTexture(1, material2.getTexture(1));
material1.setTexture(2, material2.getTexture(2));
material1.setTexture(3, material2.getTexture(3));
material1.MaterialType = material2.MaterialType;
}
}
}
}
u32 mc = mesh->getMeshBufferCount();
for (u32 i = 0; i < mc; ++i) {
scene::IMeshBuffer *buf = mesh->getMeshBuffer(i);
video::SMaterial &material = buf->getMaterial();
material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
material.setFlag(video::EMF_BILINEAR_FILTER, false);
material.setFlag(video::EMF_TRILINEAR_FILTER, false);
material.setFlag(video::EMF_BACK_FACE_CULLING, true);
material.setFlag(video::EMF_LIGHTING, false);
}
rotateMeshXZby(mesh, -45);
rotateMeshYZby(mesh, -30);
postProcessNodeMesh(mesh, f, false, false, nullptr, &result->buffer_colors);
}
result->mesh = mesh;
}
scene::SMesh *getExtrudedMesh(ITextureSource *tsrc, const std::string &imagename)
{
video::ITexture *texture = tsrc->getTextureForMesh(imagename);
if (!texture) {
return nullptr;
}
core::dimension2d<u32> dim = texture->getSize();
scene::IMesh *original = g_extrusion_mesh_cache->create(dim);
scene::SMesh *mesh = cloneMesh(original);
original->drop();
// Customize material
video::SMaterial &material = mesh->getMeshBuffer(0)->getMaterial();
material.setTexture(0, tsrc->getTexture(imagename));
material.TextureLayer[0].TextureWrapU = video::ETC_CLAMP_TO_EDGE;
material.TextureLayer[0].TextureWrapV = video::ETC_CLAMP_TO_EDGE;
material.setFlag(video::EMF_BILINEAR_FILTER, false);
material.setFlag(video::EMF_TRILINEAR_FILTER, false);
material.setFlag(video::EMF_BACK_FACE_CULLING, true);
material.setFlag(video::EMF_LIGHTING, false);
material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
scaleMesh(mesh, v3f(2.0, 2.0, 2.0));
return mesh;
}
void postProcessNodeMesh(scene::SMesh *mesh, const ContentFeatures &f,
bool use_shaders, bool set_material, video::E_MATERIAL_TYPE *mattype,
std::vector<ItemPartColor> *colors)
{
u32 mc = mesh->getMeshBufferCount();
// Allocate colors for existing buffers
colors->clear();
for (u32 i = 0; i < mc; ++i)
colors->push_back(ItemPartColor());
for (u32 i = 0; i < mc; ++i) {
const TileSpec *tile = &(f.tiles[i]);
scene::IMeshBuffer *buf = mesh->getMeshBuffer(i);
for (int layernum = 0; layernum < MAX_TILE_LAYERS; layernum++) {
const TileLayer *layer = &tile->layers[layernum];
if (layer->texture_id == 0)
continue;
if (layernum != 0) {
scene::IMeshBuffer *copy = cloneMeshBuffer(buf);
copy->getMaterial() = buf->getMaterial();
mesh->addMeshBuffer(copy);
copy->drop();
buf = copy;
colors->push_back(
ItemPartColor(layer->has_color, layer->color));
} else {
(*colors)[i] = ItemPartColor(layer->has_color, layer->color);
}
video::SMaterial &material = buf->getMaterial();
if (set_material)
layer->applyMaterialOptions(material);
if (mattype) {
material.MaterialType = *mattype;
}
if (layer->animation_frame_count > 1) {
const FrameSpec &animation_frame = (*layer->frames)[0];
material.setTexture(0, animation_frame.texture);
} else {
material.setTexture(0, layer->texture);
}
if (use_shaders) {
if (layer->normal_texture) {
if (layer->animation_frame_count > 1) {
const FrameSpec &animation_frame = (*layer->frames)[0];
material.setTexture(1, animation_frame.normal_texture);
} else
material.setTexture(1, layer->normal_texture);
}
material.setTexture(2, layer->flags_texture);
}
}
}
}