mirror of
https://github.com/love2d/love.git
synced 2026-08-16 00:02:12 +02:00
Alex Szpakowski
153 lines
3.6 KiB
C++
153 lines
3.6 KiB
C++
/**
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* Copyright (c) 2006-2022 LOVE Development Team
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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**/
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#pragma once
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// C
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#include <cstring>
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// C++
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#include <unordered_map>
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// LOVE
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#include "common/math.h"
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#include "common/Matrix.h"
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#include "common/Color.h"
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#include "common/Range.h"
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#include "Drawable.h"
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#include "Mesh.h"
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#include "vertex.h"
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namespace love
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{
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namespace graphics
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{
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// Forward declarations.
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class Graphics;
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class Texture;
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class Quad;
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class Buffer;
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class SpriteBatch : public Drawable
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{
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public:
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static love::Type type;
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SpriteBatch(Graphics *gfx, Texture *texture, int size, BufferDataUsage usage);
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virtual ~SpriteBatch();
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int add(const Matrix4 &m, int index = -1);
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int add(Quad *quad, const Matrix4 &m, int index = -1);
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int addLayer(int layer, const Matrix4 &m, int index = -1);
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int addLayer(int layer, Quad *quad, const Matrix4 &m, int index = -1);
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void clear();
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void flush();
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void setTexture(Texture *newtexture);
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Texture *getTexture() const;
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/**
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* Set the current color for this SpriteBatch. The sprites added after this
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* call will use this color.
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*
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* @param color The color to use for the following sprites.
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*/
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void setColor(const Colorf &color);
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/**
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* Get the current color for this SpriteBatch.
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**/
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Colorf getColor() const;
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/**
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* Get the number of sprites currently in this SpriteBatch.
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**/
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int getCount() const;
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/**
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* Get the total number of sprites this SpriteBatch can currently hold.
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**/
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int getBufferSize() const;
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/**
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* Attaches a specific vertex attribute from a Buffer to this SpriteBatch.
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* The vertex attribute will be used when drawing the SpriteBatch.
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* If the attribute comes from a Mesh, it should be given as an argument as
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* well, to make sure the SpriteBatch flushes its data to its Buffer when
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* the SpriteBatch is drawn.
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**/
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void attachAttribute(const std::string &name, Buffer *buffer, Mesh *mesh);
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void setDrawRange(int start, int count);
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void setDrawRange();
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bool getDrawRange(int &start, int &count) const;
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// Implements Drawable.
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void draw(Graphics *gfx, const Matrix4 &m) override;
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private:
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struct AttachedAttribute
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{
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StrongRef<Buffer> buffer;
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StrongRef<Mesh> mesh;
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int index;
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};
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/**
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* Sets the total number of sprites this SpriteBatch can hold.
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* Leaves existing sprite data intact when possible.
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**/
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void setBufferSize(int newsize);
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StrongRef<Texture> texture;
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// Max number of sprites in the batch.
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int size;
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// The next free element.
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int next;
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// Current color. This color will be applied to the next added sprite.
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Color32 color;
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Colorf colorf;
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CommonFormat vertex_format;
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size_t vertex_stride;
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StrongRef<love::graphics::Buffer> array_buf;
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uint8 *vertex_data;
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Range modified_sprites;
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std::unordered_map<std::string, AttachedAttribute> attached_attributes;
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int range_start;
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int range_count;
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}; // SpriteBatch
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} // graphics
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} // love
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