Move backend-agnostic Mesh and SpriteBatch code out of the opengl implementation folder.

--HG-- branch : minor
2026-08-16 00:02:12 +02:00 · 2017-01-29 01:05:20 -04:00
parent 3616470a0a
commit c0e66eba83
22 changed files with 1440 additions and 1246 deletions
@@ -0,0 +1,145 @@
+/**
+ * Copyright (c) 2006-2017 LOVE Development Team
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ **/
+
+#pragma once
+
+// C
+#include <cstring>
+
+// C++
+#include <unordered_map>
+
+// LOVE
+#include "common/math.h"
+#include "common/Matrix.h"
+#include "Drawable.h"
+#include "Color.h"
+#include "Mesh.h"
+
+namespace love
+{
+namespace graphics
+{
+
+// Forward declarations.
+class Graphics;
+class Texture;
+class Quad;
+class Buffer;
+
+class SpriteBatch : public Drawable
+{
+public:
+
+	static love::Type type;
+
+	SpriteBatch(Graphics *gfx, Texture *texture, int size, vertex::Usage usage);
+	virtual ~SpriteBatch();
+
+	int add(const Matrix4 &m, int index = -1);
+	int addq(Quad *quad, const Matrix4 &m, int index = -1);
+	void clear();
+
+	void flush();
+
+	void setTexture(Texture *newtexture);
+	Texture *getTexture() const;
+
+	/**
+	 * Set the current color for this SpriteBatch. The sprites added
+	 * after this call will use this color. Note that global color
+	 * will not longer apply to the SpriteBatch if this is used.
+	 *
+	 * @param color The color to use for the following sprites.
+	 */
+	void setColor(const Color &color);
+
+	/**
+	 * Disable per-sprite colors for this SpriteBatch. The next call to
+	 * draw will use the global color for all sprites.
+	 */
+	void setColor();
+
+	/**
+	 * Get the current color for this SpriteBatch. Returns NULL if no color is
+	 * set.
+	 **/
+	const Color *getColor() const;
+
+	/**
+	 * Get the number of sprites currently in this SpriteBatch.
+	 **/
+	int getCount() const;
+
+	/**
+	 * Get the total number of sprites this SpriteBatch can currently hold.
+	 **/
+	int getBufferSize() const;
+
+	/**
+	 * Attaches a specific vertex attribute from a Mesh to this SpriteBatch.
+	 * The vertex attribute will be used when drawing the SpriteBatch.
+	 **/
+	void attachAttribute(const std::string &name, Mesh *mesh);
+
+	void setDrawRange(int start, int count);
+	void setDrawRange();
+	bool getDrawRange(int &start, int &count) const;
+
+protected:
+
+	struct AttachedAttribute
+	{
+		StrongRef<Mesh> mesh;
+		int index;
+	};
+
+	/**
+	 * Sets the total number of sprites this SpriteBatch can hold.
+	 * Leaves existing sprite data intact when possible.
+	 **/
+	void setBufferSize(int newsize);
+
+	void addv(const Vertex *v, const Matrix4 &m, int index);
+
+	StrongRef<Texture> texture;
+
+	// Max number of sprites in the batch.
+	int size;
+
+	// The next free element.
+	int next;
+
+	// Current color. This color, if present, will be applied to the next
+	// added sprite.
+	Color *color;
+	
+	love::graphics::Buffer *array_buf;
+	QuadIndices quad_indices;
+	
+	std::unordered_map<std::string, AttachedAttribute> attached_attributes;
+	
+	int range_start;
+	int range_count;
+	
+}; // SpriteBatch
+
+} // graphics
+} // love