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- /**
- * Copyright (c) 2006-2012 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.
- **/
- #ifndef LOVE_GRAPHICS_OPENGL_GRAPHICS_H
- #define LOVE_GRAPHICS_OPENGL_GRAPHICS_H
- // STD
- #include <iostream>
- #include <cmath>
- // OpenGL
- #include "GLee.h"
- // LOVE
- #include <graphics/Graphics.h>
- #include <graphics/Color.h>
- #include <image/Image.h>
- #include <image/ImageData.h>
- #include <window/Window.h>
- #include "OpenGL.h"
- #include "Font.h"
- #include "Image.h"
- #include "Quad.h"
- #include "SpriteBatch.h"
- #include "ParticleSystem.h"
- #include "Canvas.h"
- #include "PixelEffect.h"
- namespace love
- {
- namespace graphics
- {
- namespace opengl
- {
- // During display mode changing, certain
- // variables about the OpenGL context are
- // lost.
- struct DisplayState
- {
- // Colors.
- Color color;
- Color backgroundColor;
- // Blend and color modes.
- Graphics::BlendMode blendMode;
- Graphics::ColorMode colorMode;
- // Line.
- Graphics::LineStyle lineStyle;
- // Point.
- float pointSize;
- Graphics::PointStyle pointStyle;
- // Scissor.
- bool scissor;
- GLint scissorBox[4];
- // Window info.
- std::string caption;
- bool mouseVisible;
- // Default values.
- DisplayState()
- {
- color.set(255,255,255,255);
- backgroundColor.r = 0;
- backgroundColor.g = 0;
- backgroundColor.b = 0;
- backgroundColor.a = 255;
- blendMode = Graphics::BLEND_ALPHA;
- colorMode = Graphics::COLOR_MODULATE;
- lineStyle = Graphics::LINE_SMOOTH;
- pointSize = 1.0f;
- pointStyle = Graphics::POINT_SMOOTH;
- scissor = false;
- caption = "";
- mouseVisible = true;
- }
- };
- class Graphics : public love::graphics::Graphics
- {
- private:
- Font * currentFont;
- love::window::Window *currentWindow;
- LineStyle lineStyle;
- float lineWidth;
- GLint matrixLimit;
- GLint userMatrices;
- int getRenderHeight();
- public:
- Graphics();
- virtual ~Graphics();
- // Implements Module.
- const char * getName() const;
- /**
- * Checks whether a display mode is supported or not. Note
- * that fullscreen is assumed, because windowed modes are
- * generally supported regardless of size.
- * @param width The window width.
- * @param height The window height.
- **/
- bool checkMode(int width, int height, bool fullscreen);
- DisplayState saveState();
- void restoreState(const DisplayState & s);
- /**
- * Sets the current display mode.
- * @param width The window width.
- * @param height The window height.
- * @param fullscreen True if fullscreen, false otherwise.
- * @param vsync True if we should wait for vsync, false otherwise.
- * @param fsaa Number of full scene anti-aliasing buffer, or 0 for disabled.
- **/
- bool setMode(int width, int height, bool fullscreen, bool vsync, int fsaa);
- /**
- * Gets the current display mode.
- * @param width Pointer to an integer for the window width.
- * @param height Pointer to an integer for the window height.
- * @param fullscreen Pointer to a boolean for the fullscreen status.
- * @param vsync Pointer to a boolean for the vsync status.
- * @param fsaa Pointer to an integer for the current number of full scene anti-aliasing buffers.
- **/
- void getMode(int & width, int & height, bool & fullscreen, bool & vsync, int & fsaa);
- /**
- * Toggles fullscreen. Note that this also needs to reload the
- * entire OpenGL context.
- **/
- bool toggleFullscreen();
- /**
- * Resets the current color, background color,
- * line style, and so forth. (This will be called
- * when the game reloads.
- **/
- void reset();
- /**
- * Clears the screen.
- **/
- void clear();
- /**
- * Flips buffers. (Rendered geometry is
- * presented on screen).
- **/
- void present();
- /**
- * Sets the window's icon.
- **/
- void setIcon(Image * image);
- /**
- * Sets the window's caption.
- **/
- void setCaption(const char * caption);
- int getCaption(lua_State * L);
- /**
- * Gets the width of the current display mode.
- **/
- int getWidth();
- /**
- * Gets the height of the current display mode.
- **/
- int getHeight();
- /**
- * True if some display mode is set.
- **/
- bool isCreated();
- /**
- * This native Lua function gets available modes
- * from SDL and returns them as a table on the following format:
- *
- * {
- * { width = 800, height = 600 },
- * { width = 1024, height = 768 },
- * ...
- * }
- *
- * Only fullscreen modes are returned here, as all
- * window sizes are supported (normally).
- **/
- int getModes(lua_State * L);
- /**
- * Scissor defines a box such that everything outside that box is discared and not drawn.
- * Scissoring is automatically enabled.
- * @param x The x-coordinate of the top-left corner.
- * @param y The y-coordinate of the top-left corner.
- * @param width The width of the box.
- * @param height The height of the box.
- **/
- void setScissor(int x, int y, int width, int height);
- /**
- * Clears any scissor that has been created.
- **/
- void setScissor();
- /**
- * This native Lua function gets the current scissor box in the order of:
- * x, y, width, height
- **/
- int getScissor(lua_State * L);
- /**
- * Enables the stencil buffer and set stencil function to fill it
- */
- void defineStencil();
- /**
- * Set stencil function to mask the following drawing calls using
- * the current stencil buffer
- * @param invert Invert the mask, i.e. draw everywhere expect where
- * the mask is defined.
- */
- void useStencil(bool invert = false);
- /**
- * Disables the stencil buffer
- */
- void discardStencil();
- /**
- * Creates an Image object with padding and/or optimization.
- **/
- Image * newImage(love::filesystem::File * file);
- Image * newImage(love::image::ImageData * data);
- /**
- * Creates a Quad object.
- **/
- Quad * newQuad(float x, float y, float w, float h, float sw, float sh);
- /**
- * Creates a Font object.
- **/
- Font * newFont(love::font::Rasterizer * data, const Image::Filter& filter = Image::Filter());
- SpriteBatch * newSpriteBatch(Image * image, int size, int usage);
- ParticleSystem * newParticleSystem(Image * image, int size);
- Canvas * newCanvas(int width, int height);
- PixelEffect * newPixelEffect(const std::string& code);
- /**
- * Sets the foreground color.
- * @param c The new foreground color.
- **/
- void setColor(const Color& c);
- /**
- * Gets current color.
- **/
- Color getColor();
- /**
- * Sets the background Color.
- **/
- void setBackgroundColor(const Color& c);
- /**
- * Gets the current background color.
- **/
- Color getBackgroundColor();
- /**
- * Sets the current font.
- * @param font A Font object.
- **/
- void setFont(Font * font);
- /**
- * Gets the current Font, or nil if none.
- **/
- Font * getFont();
- /**
- * Sets the current blend mode.
- **/
- void setBlendMode(BlendMode mode);
- /**
- * Sets the current color mode.
- **/
- void setColorMode (ColorMode mode);
- /**
- * Sets the current image filter.
- **/
- void setDefaultImageFilter(const Image::Filter& f);
- /**
- * Gets the current blend mode.
- **/
- BlendMode getBlendMode();
- /**
- * Gets the current color mode.
- **/
- ColorMode getColorMode();
- /**
- * Gets the current image filter.
- **/
- const Image::Filter& getDefaultImageFilter() const;
- /**
- * Sets the line width.
- * @param width The new width of the line.
- **/
- void setLineWidth(float width);
- /**
- * Sets the line style.
- * @param style LINE_ROUGH or LINE_SMOOTH.
- **/
- void setLineStyle(LineStyle style);
- /**
- * Sets the type of line used to draw primitives.
- * A shorthand for setLineWidth and setLineStyle.
- **/
- void setLine(float width, LineStyle style);
- /**
- * Gets the line width.
- **/
- float getLineWidth();
- /**
- * Gets the line style.
- **/
- LineStyle getLineStyle();
- /**
- * Sets the size of points.
- **/
- void setPointSize(float size);
- /**
- * Sets the style of points.
- * @param style POINT_SMOOTH or POINT_ROUGH.
- **/
- void setPointStyle(PointStyle style);
- /**
- * Shorthand for setPointSize and setPointStyle.
- **/
- void setPoint(float size, PointStyle style);
- /**
- * Gets the point size.
- **/
- float getPointSize();
- /**
- * Gets the point style.
- **/
- PointStyle getPointStyle();
- /**
- * Gets the maximum point size supported.
- * This may vary from computer to computer.
- **/
- int getMaxPointSize();
- /**
- * Draws text at the specified coordinates, with rotation and
- * scaling along both axes.
- * @param x The x-coordinate.
- * @param y The y-coordinate.
- * @param angle The amount of rotation.
- * @param sx The scale factor along the x-axis. (1 = normal).
- * @param sy The scale factor along the y-axis. (1 = normal).
- * @param ox The origin offset along the x-axis.
- * @param oy The origin offset along the y-axis.
- * @param kx Shear along the x-axis.
- * @param ky Shear along the y-axis.
- **/
- void print(const char * str, float x, float y , float angle, float sx, float sy, float ox, float oy, float kx, float ky);
- /**
- * Draw formatted text on screen at the specified coordinates.
- *
- * @param str A string of text.
- * @param x The x-coordinate.
- * @param y The y-coordinate.
- * @param wrap The maximum width of the text area.
- * @param align Where to align the text.
- **/
- void printf(const char * str, float x, float y, float wrap, AlignMode align);
- /**
- * Draws a point at (x,y).
- * @param x Point along x-axis.
- * @param y Point along y-axis.
- **/
- void point(float x, float y);
- /**
- * Draws a series of lines connecting the given vertices.
- * @param coords Vertex components (x1, y1, ..., xn, yn). If x1,y1 == xn,yn the line will be drawn closed.
- * @param count Number of items in the array, i.e. count = 2 * n
- **/
- void polyline(const float* coords, size_t count);
- /**
- * Draws a triangle using the three coordinates passed.
- * @param mode The mode of drawing (line/filled).
- * @param x1 First x-coordinate.
- * @param y1 First y-coordinate.
- * @param x2 Second x-coordinate.
- * @param y2 Second y-coordinate.
- * @param x3 Third x-coordinate.
- * @param y3 Third y-coordinate.
- **/
- void triangle(DrawMode mode, float x1, float y1, float x2, float y2, float x3, float y3);
- /**
- * Draws a rectangle.
- * @param x Position along x-axis for top-left corner.
- * @param y Position along y-axis for top-left corner.
- * @param w The width of the rectangle.
- * @param h The height of the rectangle.
- **/
- void rectangle(DrawMode mode, float x, float y, float w, float h);
- /**
- * Draws a quadrilateral using the four coordinates passed.
- * @param mode The mode of drawing (line/filled).
- * @param x1 First x-coordinate.
- * @param y1 First y-coordinate.
- * @param x2 Second x-coordinate.
- * @param y2 Second y-coordinate.
- * @param x3 Third x-coordinate.
- * @param y3 Third y-coordinate.
- * @param x4 Fourth x-coordinate.
- * @param y4 Fourth y-coordinate.
- **/
- void quad(DrawMode mode, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4);
- /**
- * Draws a circle using the specified arguments.
- * @param mode The mode of drawing (line/filled).
- * @param x X-coordinate.
- * @param y Y-coordinate.
- * @param radius Radius of the circle.
- * @param points Number of points to use to draw the circle.
- **/
- void circle(DrawMode mode, float x, float y, float radius, int points = 10);
- /**
- * Draws an arc using the specified arguments.
- * @param mode The mode of drawing (line/filled).
- * @param x X-coordinate.
- * @param y Y-coordinate.
- * @param radius Radius of the arc.
- * @param angle1 The angle at which the arc begins.
- * @param angle2 The angle at which the arc terminates.
- * @param points Number of points to use to draw the arc.
- **/
- void arc(DrawMode mode, float x, float y, float radius, float angle1, float angle2, int points = 10);
- /**
- * Draws a polygon with an arbitrary number of vertices.
- * @param type The type of drawing (line/filled).
- * @param coords Vertex components (x1, y1, x2, y2, etc.)
- * @param count Coord array size
- **/
- void polygon(DrawMode mode, const float* coords, size_t count);
- /**
- * Creates a screenshot of the view and saves it to the default folder.
- * @param image The love.image module.
- **/
- love::image::ImageData * newScreenshot(love::image::Image * image);
- void push();
- void pop();
- void rotate(float r);
- void scale(float x, float y = 1.0f);
- void translate(float x, float y);
- void shear(float kx, float ky);
- void drawTest(Image * image, float x, float y, float a, float sx, float sy, float ox, float oy);
- bool hasFocus();
- }; // Graphics
- } // opengl
- } // graphics
- } // love
- #endif // LOVE_GRAPHICS_OPENGL_GRAPHICS_H
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