mirror of
https://github.com/Relintai/pandemonium_engine.git
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272 lines
8.4 KiB
C++
272 lines
8.4 KiB
C++
/**************************************************************************/
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/* visual_server_canvas_helper.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "rendering_server_canvas_helper.h"
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#include "servers/rendering/rasterizer.h"
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#include "servers/rendering_server.h"
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LocalVector<MultiRect> RenderingServerCanvasHelper::_tilemap_multirects;
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Mutex RenderingServerCanvasHelper::_tilemap_mutex;
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bool RenderingServerCanvasHelper::_multirect_enabled = true;
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void MultiRect::add_rect(RID p_canvas_item, const Rect2 &p_rect, RID p_texture, const Rect2 &p_src_rect, const Color &p_modulate, bool p_transpose, RID p_normal_map, bool p_clip_uv) {
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bool new_common_data = true;
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Rect2 rect = p_rect;
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Rect2 source = p_src_rect;
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// To make the rendering code as efficient as possible,
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// a single MultiRect command should have identical flips and transpose etc.
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// If these change, it flushes the previous multirect and starts a new one.
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uint32_t flags = 0;
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if (p_rect.size.x < 0) {
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flags |= RasterizerCanvas::CANVAS_RECT_FLIP_H;
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rect.size.x = -rect.size.x;
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}
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if (source.size.x < 0) {
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flags ^= RasterizerCanvas::CANVAS_RECT_FLIP_H;
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source.size.x = -source.size.x;
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}
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if (p_rect.size.y < 0) {
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flags |= RasterizerCanvas::CANVAS_RECT_FLIP_V;
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rect.size.y = -rect.size.y;
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}
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if (source.size.y < 0) {
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flags ^= RasterizerCanvas::CANVAS_RECT_FLIP_V;
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source.size.y = -source.size.y;
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}
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if (p_transpose) {
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flags |= RasterizerCanvas::CANVAS_RECT_TRANSPOSE;
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SWAP(rect.size.x, rect.size.y);
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}
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if (p_clip_uv) {
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flags |= RasterizerCanvas::CANVAS_RECT_CLIP_UV;
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}
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RenderingServerCanvasHelper::State s;
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s.item = p_canvas_item;
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s.texture = p_texture;
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s.modulate = p_modulate;
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s.normal_map = p_normal_map;
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s.flags = flags;
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if (!is_empty()) {
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if ((state != s) ||
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(rects.size() >= MAX_RECTS)) {
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flush();
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} else {
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new_common_data = false;
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}
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}
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if (new_common_data) {
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state = s;
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}
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rects.push_back(rect);
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sources.push_back(source);
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// Legacy path
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if (!RenderingServerCanvasHelper::_multirect_enabled) {
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flush();
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}
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}
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void MultiRect::begin(const RenderingServerCanvasHelper::State &p_state) {
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DEV_CHECK_ONCE(!rects.size());
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rects.clear();
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sources.clear();
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state = p_state;
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state_set = true;
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}
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uint32_t MultiRect::flags_from_rects(Rect2 &r_rect, Rect2 &r_source) {
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uint32_t flags = 0;
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if (r_rect.size.x < 0) {
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flags |= RasterizerCanvas::CANVAS_RECT_FLIP_H;
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r_rect.size.x = -r_rect.size.x;
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}
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if (r_rect.size.y < 0) {
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flags |= RasterizerCanvas::CANVAS_RECT_FLIP_V;
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r_rect.size.y = -r_rect.size.y;
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}
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if (r_source.size.x < 0) {
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flags ^= RasterizerCanvas::CANVAS_RECT_FLIP_H;
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r_source.size.x = -r_source.size.x;
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}
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if (r_source.size.y < 0) {
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flags ^= RasterizerCanvas::CANVAS_RECT_FLIP_V;
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r_source.size.y = -r_source.size.y;
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}
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return flags;
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}
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bool MultiRect::add_pre_flipped(const Rect2 &p_rect, const Rect2 &p_src_rect) {
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if (rects.is_full()) {
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return false;
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}
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*rects.request() = p_rect;
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*sources.request() = p_src_rect;
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return true;
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}
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bool MultiRect::add(const Rect2 &p_rect, const Rect2 &p_src_rect, bool p_commit_on_flip_change) {
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if (rects.is_full()) {
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return false;
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}
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Rect2 rect = p_rect;
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Rect2 source = p_src_rect;
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uint32_t flags = flags_from_rects(rect, source);
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if (state_set) {
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// if we are changing these flips, we can no longer continue the same multirect
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if ((state.flags & (RasterizerCanvas::CANVAS_RECT_FLIP_H | RasterizerCanvas::CANVAS_RECT_FLIP_V)) != flags) {
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// different state requires a new multirect
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return false;
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}
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} else {
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state.flags |= flags;
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state_set = true;
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}
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*rects.request() = rect;
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*sources.request() = source;
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return true;
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}
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void MultiRect::flush() {
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if (!is_empty()) {
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if (RenderingServerCanvasHelper::_multirect_enabled) {
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RenderingServer::get_singleton()->canvas_item_add_texture_multirect_region(state.item, rects, state.texture, sources, state.modulate, state.flags, state.normal_map);
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} else {
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// legacy path
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bool transpose = state.flags & RasterizerCanvas::CANVAS_RECT_TRANSPOSE;
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bool clip_uv = state.flags & RasterizerCanvas::CANVAS_RECT_CLIP_UV;
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for (uint32_t n = 0; n < rects.size(); n++) {
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RenderingServer::get_singleton()->canvas_item_add_texture_rect_region(state.item, rects[n], state.texture, sources[n], state.modulate, transpose, state.normal_map, clip_uv);
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}
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}
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rects.clear();
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sources.clear();
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}
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state_set = false;
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// This may not be necessary (if needing to eek out maximum speed).
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state.flags = 0;
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}
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void RenderingServerCanvasHelper::tilemap_begin() {
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if (_multirect_enabled) {
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_tilemap_mutex.lock();
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}
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}
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void RenderingServerCanvasHelper::tilemap_add_rect(RID p_canvas_item, const Rect2 &p_rect, RID p_texture, const Rect2 &p_src_rect, const Color &p_modulate, bool p_transpose, RID p_normal_map, bool p_clip_uv) {
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if (!_multirect_enabled) {
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RenderingServer::get_singleton()->canvas_item_add_texture_rect_region(p_canvas_item, p_rect, p_texture, p_src_rect, p_modulate, p_transpose, p_normal_map, p_clip_uv);
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return;
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}
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Rect2 rect = p_rect;
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Rect2 source = p_src_rect;
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// To make the rendering code as efficient as possible,
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// a single MultiRect command should have identical flips and transpose etc.
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// If these change, it flushes the previous multirect and starts a new one.
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uint32_t flags = MultiRect::flags_from_rects(rect, source);
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if (p_transpose) {
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flags |= RasterizerCanvas::CANVAS_RECT_TRANSPOSE;
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SWAP(rect.size.x, rect.size.y);
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}
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if (p_clip_uv) {
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flags |= RasterizerCanvas::CANVAS_RECT_CLIP_UV;
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}
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State state;
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state.item = p_canvas_item;
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state.texture = p_texture;
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state.modulate = p_modulate;
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state.normal_map = p_normal_map;
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state.flags = flags;
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// attempt to add to existing multirect
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for (int n = _tilemap_multirects.size() - 1; n >= 0; n--) {
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MultiRect &mr = _tilemap_multirects[n];
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// matches state?
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if (mr.state == state) {
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// add .. this may fail if the multirect is full
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if (mr.add_pre_flipped(rect, source)) {
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return;
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}
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}
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// disallow if we overlap a multirect
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if (mr.overlaps(rect)) {
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break;
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}
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}
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// create new multirect
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_tilemap_multirects.resize(_tilemap_multirects.size() + 1);
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MultiRect &mr = _tilemap_multirects[_tilemap_multirects.size() - 1];
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mr.begin(state);
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mr.add_pre_flipped(rect, source);
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}
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void RenderingServerCanvasHelper::tilemap_end() {
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if (!_multirect_enabled) {
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return;
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}
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for (uint32_t n = 0; n < _tilemap_multirects.size(); n++) {
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_tilemap_multirects[n].flush();
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}
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_tilemap_multirects.clear();
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_tilemap_mutex.unlock();
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} |