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Diffstat (limited to 'src/SDL2/include/SDL_render.h')
| -rw-r--r-- | src/SDL2/include/SDL_render.h | 870 |
1 files changed, 0 insertions, 870 deletions
diff --git a/src/SDL2/include/SDL_render.h b/src/SDL2/include/SDL_render.h deleted file mode 100644 index 77f706a9..00000000 --- a/src/SDL2/include/SDL_render.h +++ /dev/null @@ -1,870 +0,0 @@ -/* - Simple DirectMedia Layer - Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org> - - 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. -*/ - -/** - * \file SDL_render.h - * - * Header file for SDL 2D rendering functions. - * - * This API supports the following features: - * * single pixel points - * * single pixel lines - * * filled rectangles - * * texture images - * - * The primitives may be drawn in opaque, blended, or additive modes. - * - * The texture images may be drawn in opaque, blended, or additive modes. - * They can have an additional color tint or alpha modulation applied to - * them, and may also be stretched with linear interpolation. - * - * This API is designed to accelerate simple 2D operations. You may - * want more functionality such as polygons and particle effects and - * in that case you should use SDL's OpenGL/Direct3D support or one - * of the many good 3D engines. - * - * These functions must be called from the main thread. - * See this bug for details: http://bugzilla.libsdl.org/show_bug.cgi?id=1995 - */ - -#ifndef _SDL_render_h -#define _SDL_render_h - -#include "SDL_stdinc.h" -#include "SDL_rect.h" -#include "SDL_video.h" - -#include "begin_code.h" -/* Set up for C function definitions, even when using C++ */ -#ifdef __cplusplus -extern "C" { -#endif - -/** - * \brief Flags used when creating a rendering context - */ -typedef enum -{ - SDL_RENDERER_SOFTWARE = 0x00000001, /**< The renderer is a software fallback */ - SDL_RENDERER_ACCELERATED = 0x00000002, /**< The renderer uses hardware - acceleration */ - SDL_RENDERER_PRESENTVSYNC = 0x00000004, /**< Present is synchronized - with the refresh rate */ - SDL_RENDERER_TARGETTEXTURE = 0x00000008 /**< The renderer supports - rendering to texture */ -} SDL_RendererFlags; - -/** - * \brief Information on the capabilities of a render driver or context. - */ -typedef struct SDL_RendererInfo -{ - const char *name; /**< The name of the renderer */ - Uint32 flags; /**< Supported ::SDL_RendererFlags */ - Uint32 num_texture_formats; /**< The number of available texture formats */ - Uint32 texture_formats[16]; /**< The available texture formats */ - int max_texture_width; /**< The maximimum texture width */ - int max_texture_height; /**< The maximimum texture height */ -} SDL_RendererInfo; - -/** - * \brief The access pattern allowed for a texture. - */ -typedef enum -{ - SDL_TEXTUREACCESS_STATIC, /**< Changes rarely, not lockable */ - SDL_TEXTUREACCESS_STREAMING, /**< Changes frequently, lockable */ - SDL_TEXTUREACCESS_TARGET /**< Texture can be used as a render target */ -} SDL_TextureAccess; - -/** - * \brief The texture channel modulation used in SDL_RenderCopy(). - */ -typedef enum -{ - SDL_TEXTUREMODULATE_NONE = 0x00000000, /**< No modulation */ - SDL_TEXTUREMODULATE_COLOR = 0x00000001, /**< srcC = srcC * color */ - SDL_TEXTUREMODULATE_ALPHA = 0x00000002 /**< srcA = srcA * alpha */ -} SDL_TextureModulate; - -/** - * \brief Flip constants for SDL_RenderCopyEx - */ -typedef enum -{ - SDL_FLIP_NONE = 0x00000000, /**< Do not flip */ - SDL_FLIP_HORIZONTAL = 0x00000001, /**< flip horizontally */ - SDL_FLIP_VERTICAL = 0x00000002 /**< flip vertically */ -} SDL_RendererFlip; - -/** - * \brief A structure representing rendering state - */ -struct SDL_Renderer; -typedef struct SDL_Renderer SDL_Renderer; - -/** - * \brief An efficient driver-specific representation of pixel data - */ -struct SDL_Texture; -typedef struct SDL_Texture SDL_Texture; - - -/* Function prototypes */ - -/** - * \brief Get the number of 2D rendering drivers available for the current - * display. - * - * A render driver is a set of code that handles rendering and texture - * management on a particular display. Normally there is only one, but - * some drivers may have several available with different capabilities. - * - * \sa SDL_GetRenderDriverInfo() - * \sa SDL_CreateRenderer() - */ -extern DECLSPEC int SDLCALL SDL_GetNumRenderDrivers(void); - -/** - * \brief Get information about a specific 2D rendering driver for the current - * display. - * - * \param index The index of the driver to query information about. - * \param info A pointer to an SDL_RendererInfo struct to be filled with - * information on the rendering driver. - * - * \return 0 on success, -1 if the index was out of range. - * - * \sa SDL_CreateRenderer() - */ -extern DECLSPEC int SDLCALL SDL_GetRenderDriverInfo(int index, - SDL_RendererInfo * info); - -/** - * \brief Create a window and default renderer - * - * \param width The width of the window - * \param height The height of the window - * \param window_flags The flags used to create the window - * \param window A pointer filled with the window, or NULL on error - * \param renderer A pointer filled with the renderer, or NULL on error - * - * \return 0 on success, or -1 on error - */ -extern DECLSPEC int SDLCALL SDL_CreateWindowAndRenderer( - int width, int height, Uint32 window_flags, - SDL_Window **window, SDL_Renderer **renderer); - - -/** - * \brief Create a 2D rendering context for a window. - * - * \param window The window where rendering is displayed. - * \param index The index of the rendering driver to initialize, or -1 to - * initialize the first one supporting the requested flags. - * \param flags ::SDL_RendererFlags. - * - * \return A valid rendering context or NULL if there was an error. - * - * \sa SDL_CreateSoftwareRenderer() - * \sa SDL_GetRendererInfo() - * \sa SDL_DestroyRenderer() - */ -extern DECLSPEC SDL_Renderer * SDLCALL SDL_CreateRenderer(SDL_Window * window, - int index, Uint32 flags); - -/** - * \brief Create a 2D software rendering context for a surface. - * - * \param surface The surface where rendering is done. - * - * \return A valid rendering context or NULL if there was an error. - * - * \sa SDL_CreateRenderer() - * \sa SDL_DestroyRenderer() - */ -extern DECLSPEC SDL_Renderer * SDLCALL SDL_CreateSoftwareRenderer(SDL_Surface * surface); - -/** - * \brief Get the renderer associated with a window. - */ -extern DECLSPEC SDL_Renderer * SDLCALL SDL_GetRenderer(SDL_Window * window); - -/** - * \brief Get information about a rendering context. - */ -extern DECLSPEC int SDLCALL SDL_GetRendererInfo(SDL_Renderer * renderer, - SDL_RendererInfo * info); - -/** - * \brief Get the output size of a rendering context. - */ -extern DECLSPEC int SDLCALL SDL_GetRendererOutputSize(SDL_Renderer * renderer, - int *w, int *h); - -/** - * \brief Create a texture for a rendering context. - * - * \param renderer The renderer. - * \param format The format of the texture. - * \param access One of the enumerated values in ::SDL_TextureAccess. - * \param w The width of the texture in pixels. - * \param h The height of the texture in pixels. - * - * \return The created texture is returned, or 0 if no rendering context was - * active, the format was unsupported, or the width or height were out - * of range. - * - * \sa SDL_QueryTexture() - * \sa SDL_UpdateTexture() - * \sa SDL_DestroyTexture() - */ -extern DECLSPEC SDL_Texture * SDLCALL SDL_CreateTexture(SDL_Renderer * renderer, - Uint32 format, - int access, int w, - int h); - -/** - * \brief Create a texture from an existing surface. - * - * \param renderer The renderer. - * \param surface The surface containing pixel data used to fill the texture. - * - * \return The created texture is returned, or 0 on error. - * - * \note The surface is not modified or freed by this function. - * - * \sa SDL_QueryTexture() - * \sa SDL_DestroyTexture() - */ -extern DECLSPEC SDL_Texture * SDLCALL SDL_CreateTextureFromSurface(SDL_Renderer * renderer, SDL_Surface * surface); - -/** - * \brief Query the attributes of a texture - * - * \param texture A texture to be queried. - * \param format A pointer filled in with the raw format of the texture. The - * actual format may differ, but pixel transfers will use this - * format. - * \param access A pointer filled in with the actual access to the texture. - * \param w A pointer filled in with the width of the texture in pixels. - * \param h A pointer filled in with the height of the texture in pixels. - * - * \return 0 on success, or -1 if the texture is not valid. - */ -extern DECLSPEC int SDLCALL SDL_QueryTexture(SDL_Texture * texture, - Uint32 * format, int *access, - int *w, int *h); - -/** - * \brief Set an additional color value used in render copy operations. - * - * \param texture The texture to update. - * \param r The red color value multiplied into copy operations. - * \param g The green color value multiplied into copy operations. - * \param b The blue color value multiplied into copy operations. - * - * \return 0 on success, or -1 if the texture is not valid or color modulation - * is not supported. - * - * \sa SDL_GetTextureColorMod() - */ -extern DECLSPEC int SDLCALL SDL_SetTextureColorMod(SDL_Texture * texture, - Uint8 r, Uint8 g, Uint8 b); - - -/** - * \brief Get the additional color value used in render copy operations. - * - * \param texture The texture to query. - * \param r A pointer filled in with the current red color value. - * \param g A pointer filled in with the current green color value. - * \param b A pointer filled in with the current blue color value. - * - * \return 0 on success, or -1 if the texture is not valid. - * - * \sa SDL_SetTextureColorMod() - */ -extern DECLSPEC int SDLCALL SDL_GetTextureColorMod(SDL_Texture * texture, - Uint8 * r, Uint8 * g, - Uint8 * b); - -/** - * \brief Set an additional alpha value used in render copy operations. - * - * \param texture The texture to update. - * \param alpha The alpha value multiplied into copy operations. - * - * \return 0 on success, or -1 if the texture is not valid or alpha modulation - * is not supported. - * - * \sa SDL_GetTextureAlphaMod() - */ -extern DECLSPEC int SDLCALL SDL_SetTextureAlphaMod(SDL_Texture * texture, - Uint8 alpha); - -/** - * \brief Get the additional alpha value used in render copy operations. - * - * \param texture The texture to query. - * \param alpha A pointer filled in with the current alpha value. - * - * \return 0 on success, or -1 if the texture is not valid. - * - * \sa SDL_SetTextureAlphaMod() - */ -extern DECLSPEC int SDLCALL SDL_GetTextureAlphaMod(SDL_Texture * texture, - Uint8 * alpha); - -/** - * \brief Set the blend mode used for texture copy operations. - * - * \param texture The texture to update. - * \param blendMode ::SDL_BlendMode to use for texture blending. - * - * \return 0 on success, or -1 if the texture is not valid or the blend mode is - * not supported. - * - * \note If the blend mode is not supported, the closest supported mode is - * chosen. - * - * \sa SDL_GetTextureBlendMode() - */ -extern DECLSPEC int SDLCALL SDL_SetTextureBlendMode(SDL_Texture * texture, - SDL_BlendMode blendMode); - -/** - * \brief Get the blend mode used for texture copy operations. - * - * \param texture The texture to query. - * \param blendMode A pointer filled in with the current blend mode. - * - * \return 0 on success, or -1 if the texture is not valid. - * - * \sa SDL_SetTextureBlendMode() - */ -extern DECLSPEC int SDLCALL SDL_GetTextureBlendMode(SDL_Texture * texture, - SDL_BlendMode *blendMode); - -/** - * \brief Update the given texture rectangle with new pixel data. - * - * \param texture The texture to update - * \param rect A pointer to the rectangle of pixels to update, or NULL to - * update the entire texture. - * \param pixels The raw pixel data. - * \param pitch The number of bytes between rows of pixel data. - * - * \return 0 on success, or -1 if the texture is not valid. - * - * \note This is a fairly slow function. - */ -extern DECLSPEC int SDLCALL SDL_UpdateTexture(SDL_Texture * texture, - const SDL_Rect * rect, - const void *pixels, int pitch); - -/** - * \brief Update a rectangle within a planar YV12 or IYUV texture with new pixel data. - * - * \param texture The texture to update - * \param rect A pointer to the rectangle of pixels to update, or NULL to - * update the entire texture. - * \param Yplane The raw pixel data for the Y plane. - * \param Ypitch The number of bytes between rows of pixel data for the Y plane. - * \param Uplane The raw pixel data for the U plane. - * \param Upitch The number of bytes between rows of pixel data for the U plane. - * \param Vplane The raw pixel data for the V plane. - * \param Vpitch The number of bytes between rows of pixel data for the V plane. - * - * \return 0 on success, or -1 if the texture is not valid. - * - * \note You can use SDL_UpdateTexture() as long as your pixel data is - * a contiguous block of Y and U/V planes in the proper order, but - * this function is available if your pixel data is not contiguous. - */ -extern DECLSPEC int SDLCALL SDL_UpdateYUVTexture(SDL_Texture * texture, - const SDL_Rect * rect, - const Uint8 *Yplane, int Ypitch, - const Uint8 *Uplane, int Upitch, - const Uint8 *Vplane, int Vpitch); - -/** - * \brief Lock a portion of the texture for write-only pixel access. - * - * \param texture The texture to lock for access, which was created with - * ::SDL_TEXTUREACCESS_STREAMING. - * \param rect A pointer to the rectangle to lock for access. If the rect - * is NULL, the entire texture will be locked. - * \param pixels This is filled in with a pointer to the locked pixels, - * appropriately offset by the locked area. - * \param pitch This is filled in with the pitch of the locked pixels. - * - * \return 0 on success, or -1 if the texture is not valid or was not created with ::SDL_TEXTUREACCESS_STREAMING. - * - * \sa SDL_UnlockTexture() - */ -extern DECLSPEC int SDLCALL SDL_LockTexture(SDL_Texture * texture, - const SDL_Rect * rect, - void **pixels, int *pitch); - -/** - * \brief Unlock a texture, uploading the changes to video memory, if needed. - * - * \sa SDL_LockTexture() - */ -extern DECLSPEC void SDLCALL SDL_UnlockTexture(SDL_Texture * texture); - -/** - * \brief Determines whether a window supports the use of render targets - * - * \param renderer The renderer that will be checked - * - * \return SDL_TRUE if supported, SDL_FALSE if not. - */ -extern DECLSPEC SDL_bool SDLCALL SDL_RenderTargetSupported(SDL_Renderer *renderer); - -/** - * \brief Set a texture as the current rendering target. - * - * \param renderer The renderer. - * \param texture The targeted texture, which must be created with the SDL_TEXTUREACCESS_TARGET flag, or NULL for the default render target - * - * \return 0 on success, or -1 on error - * - * \sa SDL_GetRenderTarget() - */ -extern DECLSPEC int SDLCALL SDL_SetRenderTarget(SDL_Renderer *renderer, - SDL_Texture *texture); - -/** - * \brief Get the current render target or NULL for the default render target. - * - * \return The current render target - * - * \sa SDL_SetRenderTarget() - */ -extern DECLSPEC SDL_Texture * SDLCALL SDL_GetRenderTarget(SDL_Renderer *renderer); - -/** - * \brief Set device independent resolution for rendering - * - * \param renderer The renderer for which resolution should be set. - * \param w The width of the logical resolution - * \param h The height of the logical resolution - * - * This function uses the viewport and scaling functionality to allow a fixed logical - * resolution for rendering, regardless of the actual output resolution. If the actual - * output resolution doesn't have the same aspect ratio the output rendering will be - * centered within the output display. - * - * If the output display is a window, mouse events in the window will be filtered - * and scaled so they seem to arrive within the logical resolution. - * - * \note If this function results in scaling or subpixel drawing by the - * rendering backend, it will be handled using the appropriate - * quality hints. - * - * \sa SDL_RenderGetLogicalSize() - * \sa SDL_RenderSetScale() - * \sa SDL_RenderSetViewport() - */ -extern DECLSPEC int SDLCALL SDL_RenderSetLogicalSize(SDL_Renderer * renderer, int w, int h); - -/** - * \brief Get device independent resolution for rendering - * - * \param renderer The renderer from which resolution should be queried. - * \param w A pointer filled with the width of the logical resolution - * \param h A pointer filled with the height of the logical resolution - * - * \sa SDL_RenderSetLogicalSize() - */ -extern DECLSPEC void SDLCALL SDL_RenderGetLogicalSize(SDL_Renderer * renderer, int *w, int *h); - -/** - * \brief Set the drawing area for rendering on the current target. - * - * \param renderer The renderer for which the drawing area should be set. - * \param rect The rectangle representing the drawing area, or NULL to set the viewport to the entire target. - * - * The x,y of the viewport rect represents the origin for rendering. - * - * \return 0 on success, or -1 on error - * - * \note If the window associated with the renderer is resized, the viewport is automatically reset. - * - * \sa SDL_RenderGetViewport() - * \sa SDL_RenderSetLogicalSize() - */ -extern DECLSPEC int SDLCALL SDL_RenderSetViewport(SDL_Renderer * renderer, - const SDL_Rect * rect); - -/** - * \brief Get the drawing area for the current target. - * - * \sa SDL_RenderSetViewport() - */ -extern DECLSPEC void SDLCALL SDL_RenderGetViewport(SDL_Renderer * renderer, - SDL_Rect * rect); - -/** - * \brief Set the clip rectangle for the current target. - * - * \param renderer The renderer for which clip rectangle should be set. - * \param rect A pointer to the rectangle to set as the clip rectangle, or - * NULL to disable clipping. - * - * \return 0 on success, or -1 on error - * - * \sa SDL_RenderGetClipRect() - */ -extern DECLSPEC int SDLCALL SDL_RenderSetClipRect(SDL_Renderer * renderer, - const SDL_Rect * rect); - -/** - * \brief Get the clip rectangle for the current target. - * - * \param renderer The renderer from which clip rectangle should be queried. - * \param rect A pointer filled in with the current clip rectangle, or - * an empty rectangle if clipping is disabled. - * - * \sa SDL_RenderSetClipRect() - */ -extern DECLSPEC void SDLCALL SDL_RenderGetClipRect(SDL_Renderer * renderer, - SDL_Rect * rect); - -/** - * \brief Set the drawing scale for rendering on the current target. - * - * \param renderer The renderer for which the drawing scale should be set. - * \param scaleX The horizontal scaling factor - * \param scaleY The vertical scaling factor - * - * The drawing coordinates are scaled by the x/y scaling factors - * before they are used by the renderer. This allows resolution - * independent drawing with a single coordinate system. - * - * \note If this results in scaling or subpixel drawing by the - * rendering backend, it will be handled using the appropriate - * quality hints. For best results use integer scaling factors. - * - * \sa SDL_RenderGetScale() - * \sa SDL_RenderSetLogicalSize() - */ -extern DECLSPEC int SDLCALL SDL_RenderSetScale(SDL_Renderer * renderer, - float scaleX, float scaleY); - -/** - * \brief Get the drawing scale for the current target. - * - * \param renderer The renderer from which drawing scale should be queried. - * \param scaleX A pointer filled in with the horizontal scaling factor - * \param scaleY A pointer filled in with the vertical scaling factor - * - * \sa SDL_RenderSetScale() - */ -extern DECLSPEC void SDLCALL SDL_RenderGetScale(SDL_Renderer * renderer, - float *scaleX, float *scaleY); - -/** - * \brief Set the color used for drawing operations (Rect, Line and Clear). - * - * \param renderer The renderer for which drawing color should be set. - * \param r The red value used to draw on the rendering target. - * \param g The green value used to draw on the rendering target. - * \param b The blue value used to draw on the rendering target. - * \param a The alpha value used to draw on the rendering target, usually - * ::SDL_ALPHA_OPAQUE (255). - * - * \return 0 on success, or -1 on error - */ -extern DECLSPEC int SDLCALL SDL_SetRenderDrawColor(SDL_Renderer * renderer, - Uint8 r, Uint8 g, Uint8 b, - Uint8 a); - -/** - * \brief Get the color used for drawing operations (Rect, Line and Clear). - * - * \param renderer The renderer from which drawing color should be queried. - * \param r A pointer to the red value used to draw on the rendering target. - * \param g A pointer to the green value used to draw on the rendering target. - * \param b A pointer to the blue value used to draw on the rendering target. - * \param a A pointer to the alpha value used to draw on the rendering target, - * usually ::SDL_ALPHA_OPAQUE (255). - * - * \return 0 on success, or -1 on error - */ -extern DECLSPEC int SDLCALL SDL_GetRenderDrawColor(SDL_Renderer * renderer, - Uint8 * r, Uint8 * g, Uint8 * b, - Uint8 * a); - -/** - * \brief Set the blend mode used for drawing operations (Fill and Line). - * - * \param renderer The renderer for which blend mode should be set. - * \param blendMode ::SDL_BlendMode to use for blending. - * - * \return 0 on success, or -1 on error - * - * \note If the blend mode is not supported, the closest supported mode is - * chosen. - * - * \sa SDL_GetRenderDrawBlendMode() - */ -extern DECLSPEC int SDLCALL SDL_SetRenderDrawBlendMode(SDL_Renderer * renderer, - SDL_BlendMode blendMode); - -/** - * \brief Get the blend mode used for drawing operations. - * - * \param renderer The renderer from which blend mode should be queried. - * \param blendMode A pointer filled in with the current blend mode. - * - * \return 0 on success, or -1 on error - * - * \sa SDL_SetRenderDrawBlendMode() - */ -extern DECLSPEC int SDLCALL SDL_GetRenderDrawBlendMode(SDL_Renderer * renderer, - SDL_BlendMode *blendMode); - -/** - * \brief Clear the current rendering target with the drawing color - * - * This function clears the entire rendering target, ignoring the viewport. - * - * \return 0 on success, or -1 on error - */ -extern DECLSPEC int SDLCALL SDL_RenderClear(SDL_Renderer * renderer); - -/** - * \brief Draw a point on the current rendering target. - * - * \param renderer The renderer which should draw a point. - * \param x The x coordinate of the point. - * \param y The y coordinate of the point. - * - * \return 0 on success, or -1 on error - */ -extern DECLSPEC int SDLCALL SDL_RenderDrawPoint(SDL_Renderer * renderer, - int x, int y); - -/** - * \brief Draw multiple points on the current rendering target. - * - * \param renderer The renderer which should draw multiple points. - * \param points The points to draw - * \param count The number of points to draw - * - * \return 0 on success, or -1 on error - */ -extern DECLSPEC int SDLCALL SDL_RenderDrawPoints(SDL_Renderer * renderer, - const SDL_Point * points, - int count); - -/** - * \brief Draw a line on the current rendering target. - * - * \param renderer The renderer which should draw a line. - * \param x1 The x coordinate of the start point. - * \param y1 The y coordinate of the start point. - * \param x2 The x coordinate of the end point. - * \param y2 The y coordinate of the end point. - * - * \return 0 on success, or -1 on error - */ -extern DECLSPEC int SDLCALL SDL_RenderDrawLine(SDL_Renderer * renderer, - int x1, int y1, int x2, int y2); - -/** - * \brief Draw a series of connected lines on the current rendering target. - * - * \param renderer The renderer which should draw multiple lines. - * \param points The points along the lines - * \param count The number of points, drawing count-1 lines - * - * \return 0 on success, or -1 on error - */ -extern DECLSPEC int SDLCALL SDL_RenderDrawLines(SDL_Renderer * renderer, - const SDL_Point * points, - int count); - -/** - * \brief Draw a rectangle on the current rendering target. - * - * \param renderer The renderer which should draw a rectangle. - * \param rect A pointer to the destination rectangle, or NULL to outline the entire rendering target. - * - * \return 0 on success, or -1 on error - */ -extern DECLSPEC int SDLCALL SDL_RenderDrawRect(SDL_Renderer * renderer, - const SDL_Rect * rect); - -/** - * \brief Draw some number of rectangles on the current rendering target. - * - * \param renderer The renderer which should draw multiple rectangles. - * \param rects A pointer to an array of destination rectangles. - * \param count The number of rectangles. - * - * \return 0 on success, or -1 on error - */ -extern DECLSPEC int SDLCALL SDL_RenderDrawRects(SDL_Renderer * renderer, - const SDL_Rect * rects, - int count); - -/** - * \brief Fill a rectangle on the current rendering target with the drawing color. - * - * \param renderer The renderer which should fill a rectangle. - * \param rect A pointer to the destination rectangle, or NULL for the entire - * rendering target. - * - * \return 0 on success, or -1 on error - */ -extern DECLSPEC int SDLCALL SDL_RenderFillRect(SDL_Renderer * renderer, - const SDL_Rect * rect); - -/** - * \brief Fill some number of rectangles on the current rendering target with the drawing color. - * - * \param renderer The renderer which should fill multiple rectangles. - * \param rects A pointer to an array of destination rectangles. - * \param count The number of rectangles. - * - * \return 0 on success, or -1 on error - */ -extern DECLSPEC int SDLCALL SDL_RenderFillRects(SDL_Renderer * renderer, - const SDL_Rect * rects, - int count); - -/** - * \brief Copy a portion of the texture to the current rendering target. - * - * \param renderer The renderer which should copy parts of a texture. - * \param texture The source texture. - * \param srcrect A pointer to the source rectangle, or NULL for the entire - * texture. - * \param dstrect A pointer to the destination rectangle, or NULL for the - * entire rendering target. - * - * \return 0 on success, or -1 on error - */ -extern DECLSPEC int SDLCALL SDL_RenderCopy(SDL_Renderer * renderer, - SDL_Texture * texture, - const SDL_Rect * srcrect, - const SDL_Rect * dstrect); - -/** - * \brief Copy a portion of the source texture to the current rendering target, rotating it by angle around the given center - * - * \param renderer The renderer which should copy parts of a texture. - * \param texture The source texture. - * \param srcrect A pointer to the source rectangle, or NULL for the entire - * texture. - * \param dstrect A pointer to the destination rectangle, or NULL for the - * entire rendering target. - * \param angle An angle in degrees that indicates the rotation that will be applied to dstrect - * \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) - * \param flip An SDL_RendererFlip value stating which flipping actions should be performed on the texture - * - * \return 0 on success, or -1 on error - */ -extern DECLSPEC int SDLCALL SDL_RenderCopyEx(SDL_Renderer * renderer, - SDL_Texture * texture, - const SDL_Rect * srcrect, - const SDL_Rect * dstrect, - const double angle, - const SDL_Point *center, - const SDL_RendererFlip flip); - -/** - * \brief Read pixels from the current rendering target. - * - * \param renderer The renderer from which pixels should be read. - * \param rect A pointer to the rectangle to read, or NULL for the entire - * render target. - * \param format The desired format of the pixel data, or 0 to use the format - * of the rendering target - * \param pixels A pointer to be filled in with the pixel data - * \param pitch The pitch of the pixels parameter. - * - * \return 0 on success, or -1 if pixel reading is not supported. - * - * \warning This is a very slow operation, and should not be used frequently. - */ -extern DECLSPEC int SDLCALL SDL_RenderReadPixels(SDL_Renderer * renderer, - const SDL_Rect * rect, - Uint32 format, - void *pixels, int pitch); - -/** - * \brief Update the screen with rendering performed. - */ -extern DECLSPEC void SDLCALL SDL_RenderPresent(SDL_Renderer * renderer); - -/** - * \brief Destroy the specified texture. - * - * \sa SDL_CreateTexture() - * \sa SDL_CreateTextureFromSurface() - */ -extern DECLSPEC void SDLCALL SDL_DestroyTexture(SDL_Texture * texture); - -/** - * \brief Destroy the rendering context for a window and free associated - * textures. - * - * \sa SDL_CreateRenderer() - */ -extern DECLSPEC void SDLCALL SDL_DestroyRenderer(SDL_Renderer * renderer); - - -/** - * \brief Bind the texture to the current OpenGL/ES/ES2 context for use with - * OpenGL instructions. - * - * \param texture The SDL texture to bind - * \param texw A pointer to a float that will be filled with the texture width - * \param texh A pointer to a float that will be filled with the texture height - * - * \return 0 on success, or -1 if the operation is not supported - */ -extern DECLSPEC int SDLCALL SDL_GL_BindTexture(SDL_Texture *texture, float *texw, float *texh); - -/** - * \brief Unbind a texture from the current OpenGL/ES/ES2 context. - * - * \param texture The SDL texture to unbind - * - * \return 0 on success, or -1 if the operation is not supported - */ -extern DECLSPEC int SDLCALL SDL_GL_UnbindTexture(SDL_Texture *texture); - - -/* Ends C function definitions when using C++ */ -#ifdef __cplusplus -} -#endif -#include "close_code.h" - -#endif /* _SDL_render_h */ - -/* vi: set ts=4 sw=4 expandtab: */ |