mirror of
https://github.com/love2d/love.git
synced 2026-08-16 08:11:02 +02:00
Alex Szpakowski
ce4fdf4ac9
love.graphics.newImage(path, “srgb”) creates a new Image whose texels are treated as being in the sRGB color space, so they are linearized when drawing/sampling from the image. love.graphics.newCanvas(w, h, “srgb”) creates a new Canvas whose texels are treated as being in the sRGB color space, so drawing to the Canvas does a linear->sRGB conversion (but blends linearly), and sampling from it (drawing it or using it in a shader) converts from sRGB to linear space. The "srgb" window flag does the same as Canvases for the main screen.
155 lines
3.8 KiB
C++
155 lines
3.8 KiB
C++
/**
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* Copyright (c) 2006-2014 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_TEXTURE_H
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#define LOVE_GRAPHICS_TEXTURE_H
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// LOVE
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#include "common/StringMap.h"
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#include "common/math.h"
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#include "Drawable.h"
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#include "Quad.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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/**
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* Base class for 2D textures. All textures can be drawn with Quads, have a
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* width and height, and have filter and wrap modes.
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**/
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class Texture : public Drawable
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{
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public:
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enum WrapMode
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{
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WRAP_CLAMP,
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WRAP_REPEAT,
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WRAP_MAX_ENUM
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};
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enum FilterMode
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{
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FILTER_NONE,
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FILTER_LINEAR,
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FILTER_NEAREST,
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FILTER_MAX_ENUM
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};
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enum Format
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{
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FORMAT_NORMAL,
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FORMAT_HDR,
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FORMAT_SRGB,
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FORMAT_MAX_ENUM
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};
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struct Filter
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{
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Filter();
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FilterMode min;
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FilterMode mag;
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FilterMode mipmap;
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float anisotropy;
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};
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struct Wrap
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{
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Wrap();
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WrapMode s;
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WrapMode t;
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};
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Texture();
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virtual ~Texture();
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/**
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* Draws the texture using the specified transformation with a Quad applied.
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*
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* @param quad The Quad object to use to draw the object.
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* @param x The position of the object along the x-axis.
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* @param y The position of the object along the y-axis.
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* @param angle The angle of the object (in radians).
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* @param sx The scale factor along the x-axis.
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* @param sy The scale factor along the y-axis.
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* @param ox The origin offset along the x-axis.
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* @param oy The origin offset along the y-axis.
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* @param kx Shear along the x-axis.
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* @param ky Shear along the y-axis.
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**/
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virtual void drawq(Quad *quad, float x, float y, float angle, float sx, float sy, float ox, float oy, float kx, float ky) = 0;
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virtual int getWidth() const;
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virtual int getHeight() const;
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virtual void setFilter(const Filter &f) = 0;
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virtual const Filter &getFilter() const;
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virtual void setWrap(const Wrap &w) = 0;
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virtual const Wrap &getWrap() const;
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virtual const Vertex *getVertices() const;
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// The default filter.
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static void setDefaultFilter(const Filter &f);
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static const Filter &getDefaultFilter();
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static bool getConstant(const char *in, FilterMode &out);
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static bool getConstant(FilterMode in, const char *&out);
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static bool getConstant(const char *in, WrapMode &out);
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static bool getConstant(WrapMode in, const char *&out);
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static bool getConstant(const char *in, Format &out);
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static bool getConstant(Format in, const char *&out);
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protected:
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int width;
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int height;
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Filter filter;
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Wrap wrap;
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Vertex vertices[4];
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private:
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// The default texture filter.
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static Filter defaultFilter;
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static StringMap<FilterMode, FILTER_MAX_ENUM>::Entry filterModeEntries[];
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static StringMap<FilterMode, FILTER_MAX_ENUM> filterModes;
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static StringMap<WrapMode, WRAP_MAX_ENUM>::Entry wrapModeEntries[];
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static StringMap<WrapMode, WRAP_MAX_ENUM> wrapModes;
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static StringMap<Format, FORMAT_MAX_ENUM>::Entry formatEntries[];
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static StringMap<Format, FORMAT_MAX_ENUM> formats;
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}; // Texture
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} // graphics
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} // love
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#endif // LOVE_GRAPHICS_TEXTURE_H
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