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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
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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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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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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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/**
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* \file SDL_render.h
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*
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* Header file for SDL 2D rendering functions.
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*
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* This API supports the following features:
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* * single pixel points
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* * single pixel lines
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* * filled rectangles
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* * texture images
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*
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* The primitives may be drawn in opaque, blended, or additive modes.
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*
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* The texture images may be drawn in opaque, blended, or additive modes.
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* They can have an additional color tint or alpha modulation applied to
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* them, and may also be stretched with linear interpolation.
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*
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* This API is designed to accelerate simple 2D operations. You may
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* want more functionality such as rotation and particle effects and
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* in that case you should use SDL's OpenGL/Direct3D support or one
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* of the many good 3D engines.
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*/
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#ifndef _SDL_render_h
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#define _SDL_render_h
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#include "SDL_stdinc.h"
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#include "SDL_rect.h"
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#include "SDL_video.h"
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#include "begin_code.h"
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/* Set up for C function definitions, even when using C++ */
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#ifdef __cplusplus
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/* *INDENT-OFF* */
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extern "C" {
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/* *INDENT-ON* */
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#endif
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/**
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* \brief Flags used when creating a rendering context
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*/
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typedef enum
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{
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SDL_RENDERER_SOFTWARE = 0x00000001, /**< The renderer is a software fallback */
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SDL_RENDERER_ACCELERATED = 0x00000002, /**< The renderer uses hardware
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acceleration */
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SDL_RENDERER_PRESENTVSYNC = 0x00000004, /**< Present is synchronized
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with the refresh rate */
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SDL_RENDERER_TARGETTEXTURE = 0x00000008 /**< The renderer supports
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rendering to texture */
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} SDL_RendererFlags;
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/**
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* \brief Information on the capabilities of a render driver or context.
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*/
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typedef struct SDL_RendererInfo
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{
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const char *name; /**< The name of the renderer */
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Uint32 flags; /**< Supported ::SDL_RendererFlags */
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Uint32 num_texture_formats; /**< The number of available texture formats */
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Uint32 texture_formats[16]; /**< The available texture formats */
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int max_texture_width; /**< The maximimum texture width */
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int max_texture_height; /**< The maximimum texture height */
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} SDL_RendererInfo;
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/**
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* \brief The access pattern allowed for a texture.
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*/
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typedef enum
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{
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SDL_TEXTUREACCESS_STATIC, /**< Changes rarely, not lockable */
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SDL_TEXTUREACCESS_STREAMING, /**< Changes frequently, lockable */
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SDL_TEXTUREACCESS_TARGET /**< Texture can be used as a render target */
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} SDL_TextureAccess;
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/**
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* \brief The texture channel modulation used in SDL_RenderCopy().
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*/
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typedef enum
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{
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SDL_TEXTUREMODULATE_NONE = 0x00000000, /**< No modulation */
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SDL_TEXTUREMODULATE_COLOR = 0x00000001, /**< srcC = srcC * color */
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SDL_TEXTUREMODULATE_ALPHA = 0x00000002 /**< srcA = srcA * alpha */
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} SDL_TextureModulate;
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/**
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* \brief Flip constants for SDL_RenderCopyEx
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*/
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typedef enum
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{
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SDL_FLIP_NONE = 0x00000000, /**< Do not flip */
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SDL_FLIP_HORIZONTAL = 0x00000001, /**< flip horizontally */
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SDL_FLIP_VERTICAL = 0x00000002 /**< flip vertically */
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} SDL_RendererFlip;
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/**
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* \brief A structure representing rendering state
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*/
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struct SDL_Renderer;
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typedef struct SDL_Renderer SDL_Renderer;
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/**
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* \brief An efficient driver-specific representation of pixel data
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*/
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struct SDL_Texture;
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typedef struct SDL_Texture SDL_Texture;
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/* Function prototypes */
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/**
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* \brief Get the number of 2D rendering drivers available for the current
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* display.
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*
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* A render driver is a set of code that handles rendering and texture
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* management on a particular display. Normally there is only one, but
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* some drivers may have several available with different capabilities.
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*
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* \sa SDL_GetRenderDriverInfo()
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* \sa SDL_CreateRenderer()
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*/
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extern DECLSPEC int SDLCALL SDL_GetNumRenderDrivers(void);
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/**
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* \brief Get information about a specific 2D rendering driver for the current
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* display.
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*
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* \param index The index of the driver to query information about.
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* \param info A pointer to an SDL_RendererInfo struct to be filled with
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* information on the rendering driver.
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*
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* \return 0 on success, -1 if the index was out of range.
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*
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* \sa SDL_CreateRenderer()
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*/
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extern DECLSPEC int SDLCALL SDL_GetRenderDriverInfo(int index,
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SDL_RendererInfo * info);
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/**
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* \brief Create a window and default renderer
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*
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* \param width The width of the window
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* \param height The height of the window
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* \param window_flags The flags used to create the window
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* \param window A pointer filled with the window, or NULL on error
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* \param renderer A pointer filled with the renderer, or NULL on error
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*
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* \return 0 on success, or -1 on error
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*/
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extern DECLSPEC int SDLCALL SDL_CreateWindowAndRenderer(
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int width, int height, Uint32 window_flags,
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SDL_Window **window, SDL_Renderer **renderer);
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/**
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* \brief Create a 2D rendering context for a window.
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*
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* \param window The window where rendering is displayed.
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* \param index The index of the rendering driver to initialize, or -1 to
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* initialize the first one supporting the requested flags.
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* \param flags ::SDL_RendererFlags.
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*
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* \return A valid rendering context or NULL if there was an error.
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*
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* \sa SDL_CreateSoftwareRenderer()
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* \sa SDL_GetRendererInfo()
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* \sa SDL_DestroyRenderer()
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*/
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extern DECLSPEC SDL_Renderer * SDLCALL SDL_CreateRenderer(SDL_Window * window,
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int index, Uint32 flags);
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/**
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* \brief Create a 2D software rendering context for a surface.
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*
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* \param surface The surface where rendering is done.
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*
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* \return A valid rendering context or NULL if there was an error.
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*
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* \sa SDL_CreateRenderer()
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* \sa SDL_DestroyRenderer()
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*/
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extern DECLSPEC SDL_Renderer * SDLCALL SDL_CreateSoftwareRenderer(SDL_Surface * surface);
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/**
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* \brief Get the renderer associated with a window.
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*/
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extern DECLSPEC SDL_Renderer * SDLCALL SDL_GetRenderer(SDL_Window * window);
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/**
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* \brief Get information about a rendering context.
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*/
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extern DECLSPEC int SDLCALL SDL_GetRendererInfo(SDL_Renderer * renderer,
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SDL_RendererInfo * info);
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/**
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* \brief Create a texture for a rendering context.
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*
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* \param renderer The renderer.
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* \param format The format of the texture.
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* \param access One of the enumerated values in ::SDL_TextureAccess.
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* \param w The width of the texture in pixels.
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* \param h The height of the texture in pixels.
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*
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* \return The created texture is returned, or 0 if no rendering context was
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* active, the format was unsupported, or the width or height were out
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* of range.
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*
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* \sa SDL_QueryTexture()
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* \sa SDL_UpdateTexture()
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* \sa SDL_DestroyTexture()
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*/
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extern DECLSPEC SDL_Texture * SDLCALL SDL_CreateTexture(SDL_Renderer * renderer,
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Uint32 format,
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int access, int w,
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int h);
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/**
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* \brief Create a texture from an existing surface.
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*
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* \param renderer The renderer.
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* \param surface The surface containing pixel data used to fill the texture.
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*
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* \return The created texture is returned, or 0 on error.
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*
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* \note The surface is not modified or freed by this function.
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*
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* \sa SDL_QueryTexture()
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* \sa SDL_DestroyTexture()
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*/
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extern DECLSPEC SDL_Texture * SDLCALL SDL_CreateTextureFromSurface(SDL_Renderer * renderer, SDL_Surface * surface);
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/**
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* \brief Query the attributes of a texture
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*
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* \param texture A texture to be queried.
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* \param format A pointer filled in with the raw format of the texture. The
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* actual format may differ, but pixel transfers will use this
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* format.
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* \param access A pointer filled in with the actual access to the texture.
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* \param w A pointer filled in with the width of the texture in pixels.
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* \param h A pointer filled in with the height of the texture in pixels.
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*
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* \return 0 on success, or -1 if the texture is not valid.
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*/
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extern DECLSPEC int SDLCALL SDL_QueryTexture(SDL_Texture * texture,
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Uint32 * format, int *access,
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int *w, int *h);
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slouken@5145
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/**
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slouken@5145
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* \brief Set an additional color value used in render copy operations.
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slouken@5145
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*
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slouken@5145
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* \param texture The texture to update.
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slouken@5145
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* \param r The red color value multiplied into copy operations.
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slouken@5145
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* \param g The green color value multiplied into copy operations.
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slouken@5145
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* \param b The blue color value multiplied into copy operations.
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slouken@5145
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*
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* \return 0 on success, or -1 if the texture is not valid or color modulation
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* is not supported.
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*
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* \sa SDL_GetTextureColorMod()
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slouken@5145
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*/
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slouken@5145
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extern DECLSPEC int SDLCALL SDL_SetTextureColorMod(SDL_Texture * texture,
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slouken@5145
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Uint8 r, Uint8 g, Uint8 b);
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slouken@5145
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slouken@5145
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slouken@5145
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/**
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slouken@5145
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* \brief Get the additional color value used in render copy operations.
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slouken@5145
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*
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slouken@5145
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* \param texture The texture to query.
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slouken@5145
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* \param r A pointer filled in with the current red color value.
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* \param g A pointer filled in with the current green color value.
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* \param b A pointer filled in with the current blue color value.
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slouken@5145
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*
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slouken@5145
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* \return 0 on success, or -1 if the texture is not valid.
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slouken@5145
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*
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slouken@5145
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* \sa SDL_SetTextureColorMod()
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*/
|
slouken@5145
|
299 |
extern DECLSPEC int SDLCALL SDL_GetTextureColorMod(SDL_Texture * texture,
|
slouken@5145
|
300 |
Uint8 * r, Uint8 * g,
|
slouken@5145
|
301 |
Uint8 * b);
|
slouken@5145
|
302 |
|
slouken@5145
|
303 |
/**
|
slouken@5145
|
304 |
* \brief Set an additional alpha value used in render copy operations.
|
slouken@5145
|
305 |
*
|
slouken@5145
|
306 |
* \param texture The texture to update.
|
slouken@5145
|
307 |
* \param alpha The alpha value multiplied into copy operations.
|
slouken@5145
|
308 |
*
|
slouken@5145
|
309 |
* \return 0 on success, or -1 if the texture is not valid or alpha modulation
|
slouken@5145
|
310 |
* is not supported.
|
slouken@5145
|
311 |
*
|
slouken@5145
|
312 |
* \sa SDL_GetTextureAlphaMod()
|
slouken@5145
|
313 |
*/
|
slouken@5145
|
314 |
extern DECLSPEC int SDLCALL SDL_SetTextureAlphaMod(SDL_Texture * texture,
|
slouken@5145
|
315 |
Uint8 alpha);
|
slouken@5145
|
316 |
|
slouken@5145
|
317 |
/**
|
slouken@5145
|
318 |
* \brief Get the additional alpha value used in render copy operations.
|
slouken@5145
|
319 |
*
|
slouken@5145
|
320 |
* \param texture The texture to query.
|
slouken@5145
|
321 |
* \param alpha A pointer filled in with the current alpha value.
|
slouken@5145
|
322 |
*
|
slouken@5145
|
323 |
* \return 0 on success, or -1 if the texture is not valid.
|
slouken@5145
|
324 |
*
|
slouken@5145
|
325 |
* \sa SDL_SetTextureAlphaMod()
|
slouken@5145
|
326 |
*/
|
slouken@5145
|
327 |
extern DECLSPEC int SDLCALL SDL_GetTextureAlphaMod(SDL_Texture * texture,
|
slouken@5145
|
328 |
Uint8 * alpha);
|
slouken@5145
|
329 |
|
slouken@5145
|
330 |
/**
|
slouken@5145
|
331 |
* \brief Set the blend mode used for texture copy operations.
|
slouken@5145
|
332 |
*
|
slouken@5145
|
333 |
* \param texture The texture to update.
|
slouken@5145
|
334 |
* \param blendMode ::SDL_BlendMode to use for texture blending.
|
slouken@5145
|
335 |
*
|
slouken@5145
|
336 |
* \return 0 on success, or -1 if the texture is not valid or the blend mode is
|
slouken@5145
|
337 |
* not supported.
|
slouken@5145
|
338 |
*
|
slouken@5145
|
339 |
* \note If the blend mode is not supported, the closest supported mode is
|
slouken@5145
|
340 |
* chosen.
|
slouken@5145
|
341 |
*
|
slouken@5145
|
342 |
* \sa SDL_GetTextureBlendMode()
|
slouken@5145
|
343 |
*/
|
slouken@5145
|
344 |
extern DECLSPEC int SDLCALL SDL_SetTextureBlendMode(SDL_Texture * texture,
|
slouken@5145
|
345 |
SDL_BlendMode blendMode);
|
slouken@5145
|
346 |
|
slouken@5145
|
347 |
/**
|
slouken@5145
|
348 |
* \brief Get the blend mode used for texture copy operations.
|
slouken@5145
|
349 |
*
|
slouken@5156
|
350 |
* \param texture The texture to query.
|
slouken@5145
|
351 |
* \param blendMode A pointer filled in with the current blend mode.
|
slouken@5145
|
352 |
*
|
slouken@5145
|
353 |
* \return 0 on success, or -1 if the texture is not valid.
|
slouken@5145
|
354 |
*
|
slouken@5145
|
355 |
* \sa SDL_SetTextureBlendMode()
|
slouken@5145
|
356 |
*/
|
slouken@5145
|
357 |
extern DECLSPEC int SDLCALL SDL_GetTextureBlendMode(SDL_Texture * texture,
|
slouken@5145
|
358 |
SDL_BlendMode *blendMode);
|
slouken@5145
|
359 |
|
slouken@5145
|
360 |
/**
|
slouken@5145
|
361 |
* \brief Update the given texture rectangle with new pixel data.
|
slouken@5145
|
362 |
*
|
slouken@5156
|
363 |
* \param texture The texture to update
|
slouken@5145
|
364 |
* \param rect A pointer to the rectangle of pixels to update, or NULL to
|
slouken@5145
|
365 |
* update the entire texture.
|
slouken@5145
|
366 |
* \param pixels The raw pixel data.
|
slouken@5145
|
367 |
* \param pitch The number of bytes between rows of pixel data.
|
slouken@5145
|
368 |
*
|
slouken@5145
|
369 |
* \return 0 on success, or -1 if the texture is not valid.
|
slouken@5145
|
370 |
*
|
slouken@5145
|
371 |
* \note This is a fairly slow function.
|
slouken@5145
|
372 |
*/
|
slouken@5145
|
373 |
extern DECLSPEC int SDLCALL SDL_UpdateTexture(SDL_Texture * texture,
|
slouken@5145
|
374 |
const SDL_Rect * rect,
|
slouken@5145
|
375 |
const void *pixels, int pitch);
|
slouken@5145
|
376 |
|
slouken@5145
|
377 |
/**
|
slouken@6493
|
378 |
* \brief Lock a portion of the texture for write-only pixel access.
|
slouken@5145
|
379 |
*
|
slouken@5156
|
380 |
* \param texture The texture to lock for access, which was created with
|
slouken@5145
|
381 |
* ::SDL_TEXTUREACCESS_STREAMING.
|
slouken@5145
|
382 |
* \param rect A pointer to the rectangle to lock for access. If the rect
|
slouken@5145
|
383 |
* is NULL, the entire texture will be locked.
|
slouken@5145
|
384 |
* \param pixels This is filled in with a pointer to the locked pixels,
|
slouken@5145
|
385 |
* appropriately offset by the locked area.
|
slouken@5145
|
386 |
* \param pitch This is filled in with the pitch of the locked pixels.
|
slouken@5145
|
387 |
*
|
slouken@5156
|
388 |
* \return 0 on success, or -1 if the texture is not valid or was not created with ::SDL_TEXTUREACCESS_STREAMING.
|
slouken@5145
|
389 |
*
|
slouken@5145
|
390 |
* \sa SDL_UnlockTexture()
|
slouken@5145
|
391 |
*/
|
slouken@5145
|
392 |
extern DECLSPEC int SDLCALL SDL_LockTexture(SDL_Texture * texture,
|
slouken@5145
|
393 |
const SDL_Rect * rect,
|
slouken@5156
|
394 |
void **pixels, int *pitch);
|
slouken@5145
|
395 |
|
slouken@5145
|
396 |
/**
|
slouken@5156
|
397 |
* \brief Unlock a texture, uploading the changes to video memory, if needed.
|
slouken@5145
|
398 |
*
|
slouken@5145
|
399 |
* \sa SDL_LockTexture()
|
slouken@5145
|
400 |
*/
|
slouken@5156
|
401 |
extern DECLSPEC void SDLCALL SDL_UnlockTexture(SDL_Texture * texture);
|
slouken@5145
|
402 |
|
slouken@5145
|
403 |
/**
|
slouken@6247
|
404 |
* \brief Determines whether a window supports the use of render targets
|
slouken@6247
|
405 |
*
|
slouken@6247
|
406 |
* \param renderer The renderer that will be checked
|
slouken@6247
|
407 |
*
|
slouken@6247
|
408 |
* \return SDL_TRUE if supported, SDL_FALSE if not.
|
slouken@6247
|
409 |
*/
|
slouken@6247
|
410 |
extern DECLSPEC SDL_bool SDLCALL SDL_RenderTargetSupported(SDL_Renderer *renderer);
|
slouken@6247
|
411 |
|
slouken@6247
|
412 |
/**
|
slouken@6247
|
413 |
* \brief Set a texture as the current rendering target.
|
slouken@6247
|
414 |
*
|
philipp@7188
|
415 |
* \param renderer The renderer.
|
slouken@6248
|
416 |
* \param texture The targeted texture, which must be created with the SDL_TEXTUREACCESS_TARGET flag, or NULL for the default render target
|
slouken@6247
|
417 |
*
|
slouken@6247
|
418 |
* \return 0 on success, or -1 on error
|
slouken@6578
|
419 |
*
|
slouken@6578
|
420 |
* \sa SDL_GetRenderTarget()
|
slouken@6247
|
421 |
*/
|
slouken@6247
|
422 |
extern DECLSPEC int SDLCALL SDL_SetRenderTarget(SDL_Renderer *renderer,
|
slouken@6247
|
423 |
SDL_Texture *texture);
|
slouken@6247
|
424 |
|
slouken@6247
|
425 |
/**
|
slouken@6578
|
426 |
* \brief Get the current render target or NULL for the default render target.
|
slouken@6578
|
427 |
*
|
slouken@6578
|
428 |
* \return The current render target
|
slouken@6578
|
429 |
*
|
slouken@6578
|
430 |
* \sa SDL_SetRenderTarget()
|
slouken@6578
|
431 |
*/
|
slouken@6578
|
432 |
extern DECLSPEC SDL_Texture * SDLCALL SDL_GetRenderTarget(SDL_Renderer *renderer);
|
slouken@6578
|
433 |
|
slouken@6578
|
434 |
/**
|
slouken@6530
|
435 |
* \brief Set device independent resolution for rendering
|
slouken@6530
|
436 |
*
|
philipp@7188
|
437 |
* \param renderer The renderer for which resolution should be set.
|
slouken@6530
|
438 |
* \param w The width of the logical resolution
|
slouken@6530
|
439 |
* \param h The height of the logical resolution
|
slouken@6530
|
440 |
*
|
slouken@6530
|
441 |
* This function uses the viewport and scaling functionality to allow a fixed logical
|
slouken@6530
|
442 |
* resolution for rendering, regardless of the actual output resolution. If the actual
|
slouken@6530
|
443 |
* output resolution doesn't have the same aspect ratio the output rendering will be
|
slouken@6530
|
444 |
* centered within the output display.
|
slouken@6530
|
445 |
*
|
slouken@6530
|
446 |
* If the output display is a window, mouse events in the window will be filtered
|
slouken@6530
|
447 |
* and scaled so they seem to arrive within the logical resolution.
|
slouken@6530
|
448 |
*
|
slouken@6530
|
449 |
* \note If this function results in scaling or subpixel drawing by the
|
slouken@6530
|
450 |
* rendering backend, it will be handled using the appropriate
|
slouken@6530
|
451 |
* quality hints.
|
slouken@6530
|
452 |
*
|
slouken@6530
|
453 |
* \sa SDL_RenderGetLogicalSize()
|
slouken@6530
|
454 |
* \sa SDL_RenderSetScale()
|
slouken@6530
|
455 |
* \sa SDL_RenderSetViewport()
|
slouken@6530
|
456 |
*/
|
slouken@6530
|
457 |
extern DECLSPEC int SDLCALL SDL_RenderSetLogicalSize(SDL_Renderer * renderer, int w, int h);
|
slouken@6530
|
458 |
|
slouken@6530
|
459 |
/**
|
slouken@6530
|
460 |
* \brief Get device independent resolution for rendering
|
slouken@6530
|
461 |
*
|
philipp@7188
|
462 |
* \param renderer The renderer from which resolution should be queried.
|
slouken@6530
|
463 |
* \param w A pointer filled with the width of the logical resolution
|
slouken@6530
|
464 |
* \param h A pointer filled with the height of the logical resolution
|
slouken@6530
|
465 |
*
|
slouken@6530
|
466 |
* \sa SDL_RenderSetLogicalSize()
|
slouken@6530
|
467 |
*/
|
philipp@7175
|
468 |
extern DECLSPEC void SDLCALL SDL_RenderGetLogicalSize(SDL_Renderer * renderer, int *w, int *h);
|
slouken@6530
|
469 |
|
slouken@6530
|
470 |
/**
|
slouken@5297
|
471 |
* \brief Set the drawing area for rendering on the current target.
|
slouken@5224
|
472 |
*
|
philipp@7188
|
473 |
* \param renderer The renderer for which the drawing area should be set.
|
slouken@5297
|
474 |
* \param rect The rectangle representing the drawing area, or NULL to set the viewport to the entire target.
|
slouken@5297
|
475 |
*
|
slouken@5297
|
476 |
* The x,y of the viewport rect represents the origin for rendering.
|
slouken@5224
|
477 |
*
|
slouken@7141
|
478 |
* \return 0 on success, or -1 on error
|
slouken@7141
|
479 |
*
|
slouken@5297
|
480 |
* \note When the window is resized, the current viewport is automatically
|
slouken@5297
|
481 |
* centered within the new window size.
|
slouken@6530
|
482 |
*
|
slouken@6530
|
483 |
* \sa SDL_RenderGetViewport()
|
slouken@6530
|
484 |
* \sa SDL_RenderSetLogicalSize()
|
slouken@5224
|
485 |
*/
|
slouken@5297
|
486 |
extern DECLSPEC int SDLCALL SDL_RenderSetViewport(SDL_Renderer * renderer,
|
slouken@5297
|
487 |
const SDL_Rect * rect);
|
slouken@5297
|
488 |
|
slouken@5297
|
489 |
/**
|
slouken@5297
|
490 |
* \brief Get the drawing area for the current target.
|
slouken@6530
|
491 |
*
|
slouken@6530
|
492 |
* \sa SDL_RenderSetViewport()
|
slouken@5297
|
493 |
*/
|
slouken@5297
|
494 |
extern DECLSPEC void SDLCALL SDL_RenderGetViewport(SDL_Renderer * renderer,
|
slouken@5297
|
495 |
SDL_Rect * rect);
|
slouken@5224
|
496 |
|
slouken@5224
|
497 |
/**
|
slouken@7141
|
498 |
* \brief Set the clip rectangle for the current target.
|
slouken@7141
|
499 |
*
|
philipp@7188
|
500 |
* \param renderer The renderer for which clip rectangle should be set.
|
slouken@7141
|
501 |
* \param rect A pointer to the rectangle to set as the clip rectangle, or
|
slouken@7141
|
502 |
* NULL to disable clipping.
|
slouken@7141
|
503 |
*
|
slouken@7141
|
504 |
* \return 0 on success, or -1 on error
|
slouken@7141
|
505 |
*
|
slouken@7141
|
506 |
* \sa SDL_RenderGetClipRect()
|
slouken@7141
|
507 |
*/
|
slouken@7141
|
508 |
extern DECLSPEC int SDLCALL SDL_RenderSetClipRect(SDL_Renderer * renderer,
|
slouken@7141
|
509 |
const SDL_Rect * rect);
|
slouken@7141
|
510 |
|
slouken@7141
|
511 |
/**
|
slouken@7141
|
512 |
* \brief Get the clip rectangle for the current target.
|
slouken@7141
|
513 |
*
|
philipp@7188
|
514 |
* \param renderer The renderer from which clip rectangle should be queried.
|
slouken@7141
|
515 |
* \param rect A pointer filled in with the current clip rectangle, or
|
slouken@7141
|
516 |
* an empty rectangle if clipping is disabled.
|
slouken@7141
|
517 |
*
|
slouken@7141
|
518 |
* \sa SDL_RenderSetClipRect()
|
slouken@7141
|
519 |
*/
|
slouken@7141
|
520 |
extern DECLSPEC void SDLCALL SDL_RenderGetClipRect(SDL_Renderer * renderer,
|
slouken@7141
|
521 |
SDL_Rect * rect);
|
slouken@7141
|
522 |
|
slouken@7141
|
523 |
/**
|
slouken@6528
|
524 |
* \brief Set the drawing scale for rendering on the current target.
|
slouken@6528
|
525 |
*
|
philipp@7188
|
526 |
* \param renderer The renderer for which the drawing scale should be set.
|
slouken@6528
|
527 |
* \param scaleX The horizontal scaling factor
|
slouken@6528
|
528 |
* \param scaleY The vertical scaling factor
|
slouken@6528
|
529 |
*
|
slouken@6528
|
530 |
* The drawing coordinates are scaled by the x/y scaling factors
|
slouken@6528
|
531 |
* before they are used by the renderer. This allows resolution
|
slouken@6528
|
532 |
* independent drawing with a single coordinate system.
|
slouken@6528
|
533 |
*
|
slouken@6528
|
534 |
* \note If this results in scaling or subpixel drawing by the
|
slouken@6528
|
535 |
* rendering backend, it will be handled using the appropriate
|
slouken@6528
|
536 |
* quality hints. For best results use integer scaling factors.
|
slouken@6530
|
537 |
*
|
slouken@6530
|
538 |
* \sa SDL_RenderGetScale()
|
slouken@6530
|
539 |
* \sa SDL_RenderSetLogicalSize()
|
slouken@6528
|
540 |
*/
|
slouken@6528
|
541 |
extern DECLSPEC int SDLCALL SDL_RenderSetScale(SDL_Renderer * renderer,
|
slouken@6528
|
542 |
float scaleX, float scaleY);
|
slouken@6528
|
543 |
|
slouken@6528
|
544 |
/**
|
slouken@6528
|
545 |
* \brief Get the drawing scale for the current target.
|
slouken@6528
|
546 |
*
|
philipp@7188
|
547 |
* \param renderer The renderer from which drawing scale should be queried.
|
slouken@6528
|
548 |
* \param scaleX A pointer filled in with the horizontal scaling factor
|
slouken@6528
|
549 |
* \param scaleY A pointer filled in with the vertical scaling factor
|
slouken@6530
|
550 |
*
|
slouken@6530
|
551 |
* \sa SDL_RenderSetScale()
|
slouken@6528
|
552 |
*/
|
slouken@6528
|
553 |
extern DECLSPEC void SDLCALL SDL_RenderGetScale(SDL_Renderer * renderer,
|
slouken@6528
|
554 |
float *scaleX, float *scaleY);
|
slouken@6528
|
555 |
|
slouken@6528
|
556 |
/**
|
slouken@6039
|
557 |
* \brief Set the color used for drawing operations (Rect, Line and Clear).
|
slouken@5145
|
558 |
*
|
philipp@7188
|
559 |
* \param renderer The renderer for which drawing color should be set.
|
slouken@5145
|
560 |
* \param r The red value used to draw on the rendering target.
|
slouken@5145
|
561 |
* \param g The green value used to draw on the rendering target.
|
slouken@5145
|
562 |
* \param b The blue value used to draw on the rendering target.
|
slouken@5145
|
563 |
* \param a The alpha value used to draw on the rendering target, usually
|
slouken@5145
|
564 |
* ::SDL_ALPHA_OPAQUE (255).
|
slouken@5145
|
565 |
*
|
slouken@5147
|
566 |
* \return 0 on success, or -1 on error
|
slouken@5145
|
567 |
*/
|
slouken@5147
|
568 |
extern DECLSPEC int SDL_SetRenderDrawColor(SDL_Renderer * renderer,
|
slouken@5147
|
569 |
Uint8 r, Uint8 g, Uint8 b,
|
slouken@5145
|
570 |
Uint8 a);
|
slouken@5145
|
571 |
|
slouken@5145
|
572 |
/**
|
slouken@6039
|
573 |
* \brief Get the color used for drawing operations (Rect, Line and Clear).
|
slouken@5145
|
574 |
*
|
philipp@7188
|
575 |
* \param renderer The renderer from which drawing color should be queried.
|
slouken@5145
|
576 |
* \param r A pointer to the red value used to draw on the rendering target.
|
slouken@5145
|
577 |
* \param g A pointer to the green value used to draw on the rendering target.
|
slouken@5145
|
578 |
* \param b A pointer to the blue value used to draw on the rendering target.
|
slouken@5145
|
579 |
* \param a A pointer to the alpha value used to draw on the rendering target,
|
slouken@5145
|
580 |
* usually ::SDL_ALPHA_OPAQUE (255).
|
slouken@5145
|
581 |
*
|
slouken@5147
|
582 |
* \return 0 on success, or -1 on error
|
slouken@5145
|
583 |
*/
|
slouken@5147
|
584 |
extern DECLSPEC int SDL_GetRenderDrawColor(SDL_Renderer * renderer,
|
slouken@5147
|
585 |
Uint8 * r, Uint8 * g, Uint8 * b,
|
slouken@5145
|
586 |
Uint8 * a);
|
slouken@5145
|
587 |
|
slouken@5145
|
588 |
/**
|
slouken@5145
|
589 |
* \brief Set the blend mode used for drawing operations (Fill and Line).
|
slouken@5145
|
590 |
*
|
philipp@7188
|
591 |
* \param renderer The renderer for which blend mode should be set.
|
slouken@5145
|
592 |
* \param blendMode ::SDL_BlendMode to use for blending.
|
slouken@5145
|
593 |
*
|
slouken@5147
|
594 |
* \return 0 on success, or -1 on error
|
slouken@5145
|
595 |
*
|
slouken@5145
|
596 |
* \note If the blend mode is not supported, the closest supported mode is
|
slouken@5145
|
597 |
* chosen.
|
slouken@5145
|
598 |
*
|
slouken@5145
|
599 |
* \sa SDL_GetRenderDrawBlendMode()
|
slouken@5145
|
600 |
*/
|
slouken@5147
|
601 |
extern DECLSPEC int SDLCALL SDL_SetRenderDrawBlendMode(SDL_Renderer * renderer,
|
slouken@5147
|
602 |
SDL_BlendMode blendMode);
|
slouken@5145
|
603 |
|
slouken@5145
|
604 |
/**
|
slouken@5145
|
605 |
* \brief Get the blend mode used for drawing operations.
|
slouken@5145
|
606 |
*
|
philipp@7188
|
607 |
* \param renderer The renderer from which blend mode should be queried.
|
slouken@5145
|
608 |
* \param blendMode A pointer filled in with the current blend mode.
|
slouken@5145
|
609 |
*
|
slouken@5147
|
610 |
* \return 0 on success, or -1 on error
|
slouken@5145
|
611 |
*
|
slouken@5145
|
612 |
* \sa SDL_SetRenderDrawBlendMode()
|
slouken@5145
|
613 |
*/
|
slouken@5147
|
614 |
extern DECLSPEC int SDLCALL SDL_GetRenderDrawBlendMode(SDL_Renderer * renderer,
|
slouken@5147
|
615 |
SDL_BlendMode *blendMode);
|
slouken@5145
|
616 |
|
slouken@5145
|
617 |
/**
|
slouken@5145
|
618 |
* \brief Clear the current rendering target with the drawing color
|
slouken@5297
|
619 |
*
|
slouken@5297
|
620 |
* This function clears the entire rendering target, ignoring the viewport.
|
philipp@7168
|
621 |
*
|
philipp@7168
|
622 |
* \return 0 on success, or -1 on error
|
slouken@5145
|
623 |
*/
|
slouken@5147
|
624 |
extern DECLSPEC int SDLCALL SDL_RenderClear(SDL_Renderer * renderer);
|
slouken@5145
|
625 |
|
slouken@5145
|
626 |
/**
|
slouken@5145
|
627 |
* \brief Draw a point on the current rendering target.
|
slouken@5145
|
628 |
*
|
philipp@7188
|
629 |
* \param renderer The renderer which should draw a point.
|
slouken@5145
|
630 |
* \param x The x coordinate of the point.
|
slouken@5145
|
631 |
* \param y The y coordinate of the point.
|
slouken@5145
|
632 |
*
|
slouken@5147
|
633 |
* \return 0 on success, or -1 on error
|
slouken@5145
|
634 |
*/
|
slouken@5147
|
635 |
extern DECLSPEC int SDLCALL SDL_RenderDrawPoint(SDL_Renderer * renderer,
|
slouken@5147
|
636 |
int x, int y);
|
slouken@5145
|
637 |
|
slouken@5145
|
638 |
/**
|
slouken@5145
|
639 |
* \brief Draw multiple points on the current rendering target.
|
slouken@5145
|
640 |
*
|
philipp@7188
|
641 |
* \param renderer The renderer which should draw multiple points.
|
slouken@5145
|
642 |
* \param points The points to draw
|
slouken@5145
|
643 |
* \param count The number of points to draw
|
slouken@5145
|
644 |
*
|
slouken@5147
|
645 |
* \return 0 on success, or -1 on error
|
slouken@5145
|
646 |
*/
|
slouken@5147
|
647 |
extern DECLSPEC int SDLCALL SDL_RenderDrawPoints(SDL_Renderer * renderer,
|
slouken@5147
|
648 |
const SDL_Point * points,
|
slouken@5145
|
649 |
int count);
|
slouken@5145
|
650 |
|
slouken@5145
|
651 |
/**
|
slouken@5145
|
652 |
* \brief Draw a line on the current rendering target.
|
slouken@5145
|
653 |
*
|
philipp@7188
|
654 |
* \param renderer The renderer which should draw a line.
|
slouken@5145
|
655 |
* \param x1 The x coordinate of the start point.
|
slouken@5145
|
656 |
* \param y1 The y coordinate of the start point.
|
slouken@5145
|
657 |
* \param x2 The x coordinate of the end point.
|
slouken@5145
|
658 |
* \param y2 The y coordinate of the end point.
|
slouken@5145
|
659 |
*
|
slouken@5147
|
660 |
* \return 0 on success, or -1 on error
|
slouken@5145
|
661 |
*/
|
slouken@5147
|
662 |
extern DECLSPEC int SDLCALL SDL_RenderDrawLine(SDL_Renderer * renderer,
|
slouken@5147
|
663 |
int x1, int y1, int x2, int y2);
|
slouken@5145
|
664 |
|
slouken@5145
|
665 |
/**
|
slouken@5145
|
666 |
* \brief Draw a series of connected lines on the current rendering target.
|
slouken@5145
|
667 |
*
|
philipp@7188
|
668 |
* \param renderer The renderer which should draw multiple lines.
|
slouken@5145
|
669 |
* \param points The points along the lines
|
slouken@5145
|
670 |
* \param count The number of points, drawing count-1 lines
|
slouken@5145
|
671 |
*
|
slouken@5147
|
672 |
* \return 0 on success, or -1 on error
|
slouken@5145
|
673 |
*/
|
slouken@5147
|
674 |
extern DECLSPEC int SDLCALL SDL_RenderDrawLines(SDL_Renderer * renderer,
|
slouken@5147
|
675 |
const SDL_Point * points,
|
slouken@5145
|
676 |
int count);
|
slouken@5145
|
677 |
|
slouken@5145
|
678 |
/**
|
slouken@5145
|
679 |
* \brief Draw a rectangle on the current rendering target.
|
slouken@5145
|
680 |
*
|
philipp@7188
|
681 |
* \param renderer The renderer which should draw a rectangle.
|
slouken@5145
|
682 |
* \param rect A pointer to the destination rectangle, or NULL to outline the entire rendering target.
|
slouken@5145
|
683 |
*
|
slouken@5147
|
684 |
* \return 0 on success, or -1 on error
|
slouken@5145
|
685 |
*/
|
slouken@5147
|
686 |
extern DECLSPEC int SDLCALL SDL_RenderDrawRect(SDL_Renderer * renderer,
|
slouken@5147
|
687 |
const SDL_Rect * rect);
|
slouken@5145
|
688 |
|
slouken@5145
|
689 |
/**
|
slouken@5145
|
690 |
* \brief Draw some number of rectangles on the current rendering target.
|
slouken@5145
|
691 |
*
|
philipp@7188
|
692 |
* \param renderer The renderer which should draw multiple rectangles.
|
slouken@5145
|
693 |
* \param rects A pointer to an array of destination rectangles.
|
slouken@5145
|
694 |
* \param count The number of rectangles.
|
slouken@5145
|
695 |
*
|
slouken@5147
|
696 |
* \return 0 on success, or -1 on error
|
slouken@5145
|
697 |
*/
|
slouken@5147
|
698 |
extern DECLSPEC int SDLCALL SDL_RenderDrawRects(SDL_Renderer * renderer,
|
slouken@5297
|
699 |
const SDL_Rect * rects,
|
slouken@5147
|
700 |
int count);
|
slouken@5145
|
701 |
|
slouken@5145
|
702 |
/**
|
slouken@5145
|
703 |
* \brief Fill a rectangle on the current rendering target with the drawing color.
|
slouken@5145
|
704 |
*
|
philipp@7188
|
705 |
* \param renderer The renderer which should fill a rectangle.
|
slouken@5145
|
706 |
* \param rect A pointer to the destination rectangle, or NULL for the entire
|
slouken@5145
|
707 |
* rendering target.
|
slouken@5145
|
708 |
*
|
slouken@5147
|
709 |
* \return 0 on success, or -1 on error
|
slouken@5145
|
710 |
*/
|
slouken@5147
|
711 |
extern DECLSPEC int SDLCALL SDL_RenderFillRect(SDL_Renderer * renderer,
|
slouken@5147
|
712 |
const SDL_Rect * rect);
|
slouken@5145
|
713 |
|
slouken@5145
|
714 |
/**
|
slouken@5145
|
715 |
* \brief Fill some number of rectangles on the current rendering target with the drawing color.
|
slouken@5145
|
716 |
*
|
philipp@7188
|
717 |
* \param renderer The renderer which should fill multiple rectangles.
|
slouken@5145
|
718 |
* \param rects A pointer to an array of destination rectangles.
|
slouken@5145
|
719 |
* \param count The number of rectangles.
|
slouken@5145
|
720 |
*
|
slouken@5147
|
721 |
* \return 0 on success, or -1 on error
|
slouken@5145
|
722 |
*/
|
slouken@5147
|
723 |
extern DECLSPEC int SDLCALL SDL_RenderFillRects(SDL_Renderer * renderer,
|
slouken@5486
|
724 |
const SDL_Rect * rects,
|
slouken@5147
|
725 |
int count);
|
slouken@5145
|
726 |
|
slouken@5145
|
727 |
/**
|
slouken@5145
|
728 |
* \brief Copy a portion of the texture to the current rendering target.
|
slouken@5145
|
729 |
*
|
philipp@7188
|
730 |
* \param renderer The renderer which should copy parts of a texture.
|
slouken@5145
|
731 |
* \param texture The source texture.
|
slouken@5145
|
732 |
* \param srcrect A pointer to the source rectangle, or NULL for the entire
|
slouken@5145
|
733 |
* texture.
|
slouken@5145
|
734 |
* \param dstrect A pointer to the destination rectangle, or NULL for the
|
slouken@5145
|
735 |
* entire rendering target.
|
slouken@5145
|
736 |
*
|
slouken@5147
|
737 |
* \return 0 on success, or -1 on error
|
slouken@5145
|
738 |
*/
|
slouken@5147
|
739 |
extern DECLSPEC int SDLCALL SDL_RenderCopy(SDL_Renderer * renderer,
|
slouken@5147
|
740 |
SDL_Texture * texture,
|
slouken@5145
|
741 |
const SDL_Rect * srcrect,
|
slouken@5145
|
742 |
const SDL_Rect * dstrect);
|
slouken@5145
|
743 |
|
gabomdq@6320
|
744 |
/**
|
gabomdq@6320
|
745 |
* \brief Copy a portion of the source texture to the current rendering target, rotating it by angle around the given center
|
gabomdq@6320
|
746 |
*
|
philipp@7188
|
747 |
* \param renderer The renderer which should copy parts of a texture.
|
gabomdq@6320
|
748 |
* \param texture The source texture.
|
gabomdq@6320
|
749 |
* \param srcrect A pointer to the source rectangle, or NULL for the entire
|
gabomdq@6320
|
750 |
* texture.
|
gabomdq@6320
|
751 |
* \param dstrect A pointer to the destination rectangle, or NULL for the
|
gabomdq@6320
|
752 |
* entire rendering target.
|
gabomdq@6320
|
753 |
* \param angle An angle in degrees that indicates the rotation that will be applied to dstrect
|
gabomdq@6320
|
754 |
* \param center A pointer to a point indicating the point around which dstrect will be rotated (if NULL, rotation will be done aroud dstrect.w/2, dstrect.h/2)
|
slouken@6826
|
755 |
* \param flip An SDL_RendererFlip value stating which flipping actions should be performed on the texture
|
gabomdq@6320
|
756 |
*
|
gabomdq@6320
|
757 |
* \return 0 on success, or -1 on error
|
gabomdq@6320
|
758 |
*/
|
gabomdq@6320
|
759 |
extern DECLSPEC int SDLCALL SDL_RenderCopyEx(SDL_Renderer * renderer,
|
gabomdq@6320
|
760 |
SDL_Texture * texture,
|
gabomdq@6320
|
761 |
const SDL_Rect * srcrect,
|
gabomdq@6320
|
762 |
const SDL_Rect * dstrect,
|
gabomdq@6320
|
763 |
const double angle,
|
gabomdq@6320
|
764 |
const SDL_Point *center,
|
gabomdq@6320
|
765 |
const SDL_RendererFlip flip);
|
slouken@6232
|
766 |
|
slouken@6232
|
767 |
/**
|
slouken@5145
|
768 |
* \brief Read pixels from the current rendering target.
|
slouken@5145
|
769 |
*
|
philipp@7188
|
770 |
* \param renderer The renderer from which pixels should be read.
|
slouken@5145
|
771 |
* \param rect A pointer to the rectangle to read, or NULL for the entire
|
slouken@5145
|
772 |
* render target.
|
slouken@5145
|
773 |
* \param format The desired format of the pixel data, or 0 to use the format
|
slouken@5145
|
774 |
* of the rendering target
|
slouken@5145
|
775 |
* \param pixels A pointer to be filled in with the pixel data
|
slouken@5145
|
776 |
* \param pitch The pitch of the pixels parameter.
|
slouken@5145
|
777 |
*
|
slouken@5145
|
778 |
* \return 0 on success, or -1 if pixel reading is not supported.
|
slouken@5145
|
779 |
*
|
slouken@5145
|
780 |
* \warning This is a very slow operation, and should not be used frequently.
|
slouken@5145
|
781 |
*/
|
slouken@5147
|
782 |
extern DECLSPEC int SDLCALL SDL_RenderReadPixels(SDL_Renderer * renderer,
|
slouken@5147
|
783 |
const SDL_Rect * rect,
|
slouken@5145
|
784 |
Uint32 format,
|
slouken@5145
|
785 |
void *pixels, int pitch);
|
slouken@5145
|
786 |
|
slouken@5145
|
787 |
/**
|
slouken@5145
|
788 |
* \brief Update the screen with rendering performed.
|
slouken@5145
|
789 |
*/
|
slouken@5147
|
790 |
extern DECLSPEC void SDLCALL SDL_RenderPresent(SDL_Renderer * renderer);
|
slouken@5145
|
791 |
|
slouken@5145
|
792 |
/**
|
slouken@5145
|
793 |
* \brief Destroy the specified texture.
|
slouken@5145
|
794 |
*
|
slouken@5145
|
795 |
* \sa SDL_CreateTexture()
|
slouken@5145
|
796 |
* \sa SDL_CreateTextureFromSurface()
|
slouken@5145
|
797 |
*/
|
slouken@5145
|
798 |
extern DECLSPEC void SDLCALL SDL_DestroyTexture(SDL_Texture * texture);
|
slouken@5145
|
799 |
|
slouken@5145
|
800 |
/**
|
slouken@5145
|
801 |
* \brief Destroy the rendering context for a window and free associated
|
slouken@5145
|
802 |
* textures.
|
slouken@5145
|
803 |
*
|
slouken@5145
|
804 |
* \sa SDL_CreateRenderer()
|
slouken@5145
|
805 |
*/
|
slouken@5147
|
806 |
extern DECLSPEC void SDLCALL SDL_DestroyRenderer(SDL_Renderer * renderer);
|
slouken@5145
|
807 |
|
slouken@5145
|
808 |
|
gabomdq@6414
|
809 |
/**
|
gabomdq@6414
|
810 |
* \brief Bind the texture to the current OpenGL/ES/ES2 context for use with
|
gabomdq@6414
|
811 |
* OpenGL instructions.
|
gabomdq@6414
|
812 |
*
|
gabomdq@6414
|
813 |
* \param texture The SDL texture to bind
|
gabomdq@6414
|
814 |
* \param texw A pointer to a float that will be filled with the texture width
|
gabomdq@6414
|
815 |
* \param texh A pointer to a float that will be filled with the texture height
|
gabomdq@6414
|
816 |
*
|
gabomdq@6414
|
817 |
* \return 0 on success, or -1 if the operation is not supported
|
gabomdq@6414
|
818 |
*/
|
gabomdq@6414
|
819 |
extern DECLSPEC int SDLCALL SDL_GL_BindTexture(SDL_Texture *texture, float *texw, float *texh);
|
gabomdq@6414
|
820 |
|
gabomdq@6414
|
821 |
/**
|
gabomdq@6414
|
822 |
* \brief Unbind a texture from the current OpenGL/ES/ES2 context.
|
gabomdq@6414
|
823 |
*
|
gabomdq@6414
|
824 |
* \param texture The SDL texture to unbind
|
gabomdq@6414
|
825 |
*
|
gabomdq@6414
|
826 |
* \return 0 on success, or -1 if the operation is not supported
|
gabomdq@6414
|
827 |
*/
|
gabomdq@6414
|
828 |
extern DECLSPEC int SDLCALL SDL_GL_UnbindTexture(SDL_Texture *texture);
|
gabomdq@6414
|
829 |
|
gabomdq@6414
|
830 |
|
slouken@5145
|
831 |
/* Ends C function definitions when using C++ */
|
slouken@5145
|
832 |
#ifdef __cplusplus
|
slouken@5145
|
833 |
/* *INDENT-OFF* */
|
slouken@5145
|
834 |
}
|
slouken@5145
|
835 |
/* *INDENT-ON* */
|
slouken@5145
|
836 |
#endif
|
slouken@5145
|
837 |
#include "close_code.h"
|
slouken@5145
|
838 |
|
slouken@5145
|
839 |
#endif /* _SDL_render_h */
|
slouken@5145
|
840 |
|
slouken@5145
|
841 |
/* vi: set ts=4 sw=4 expandtab: */
|