mirror of
https://github.com/love2d/love.git
synced 2026-08-16 08:11:02 +02:00
Alex Szpakowski
156 lines
4.0 KiB
C++
156 lines
4.0 KiB
C++
/**
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* Copyright (c) 2006-2015 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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#ifndef LOVE_GRAPHICS_OPENGL_SPRITE_BATCH_H
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#define LOVE_GRAPHICS_OPENGL_SPRITE_BATCH_H
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// C
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#include <cstring>
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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/StringMap.h"
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#include "graphics/Drawable.h"
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#include "graphics/Volatile.h"
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#include "graphics/Color.h"
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#include "graphics/Quad.h"
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#include "VertexBuffer.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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namespace opengl
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{
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// Forward declarations.
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class Texture;
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class SpriteBatch : public Drawable
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{
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public:
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enum UsageHint
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{
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USAGE_DYNAMIC,
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USAGE_STATIC,
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USAGE_STREAM,
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USAGE_MAX_ENUM
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};
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SpriteBatch(Texture *texture, int size, int usage);
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virtual ~SpriteBatch();
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int add(float x, float y, float a, float sx, float sy, float ox, float oy, float kx, float ky, int index = -1);
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int addq(Quad *quad, float x, float y, float a, float sx, float sy, float ox, float oy, float kx, float ky, 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
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* after this call will use this color. Note that global color
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* will not longer apply to the SpriteBatch if this is used.
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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 Color &color);
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/**
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* Disable per-sprite colors for this SpriteBatch. The next call to
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* draw will use the global color for all sprites.
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*/
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void setColor();
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/**
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* Get the current color for this SpriteBatch. Returns NULL if no color is
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* set.
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**/
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const Color *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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* 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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/**
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* Get the total number of sprites this SpriteBatch can hold.
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**/
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int getBufferSize() const;
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// Implements Drawable.
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void draw(float x, float y, float angle, float sx, float sy, float ox, float oy, float kx, float ky);
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static bool getConstant(const char *in, UsageHint &out);
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static bool getConstant(UsageHint in, const char *&out);
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private:
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void addv(const Vertex *v, const Matrix &m, int index);
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/**
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* Set the color for vertices.
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*
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* @param v The vertices to set the color for. Must be an array of
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* of size 4.
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* @param color The color to assign to each vertex.
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*/
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void setColorv(Vertex *v, const Color &color);
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Object::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, if present, will be applied to the next
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// added sprite.
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Color *color;
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VertexBuffer *array_buf;
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VertexIndex element_buf;
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// The portion of the vertex buffer that's been modified while mapped.
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size_t buffer_used_offset;
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size_t buffer_used_size;
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static StringMap<UsageHint, USAGE_MAX_ENUM>::Entry usageHintEntries[];
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static StringMap<UsageHint, USAGE_MAX_ENUM> usageHints;
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}; // SpriteBatch
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} // opengl
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} // graphics
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} // love
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#endif // LOVE_GRAPHICS_OPENGL_SPRITE_BATCH_H
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