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RenderCopyEx,rotation and flipping for all hardware/software backends (#1308)

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This commit is contained in:
Gabriel Jacobo 2012-06-01 19:51:08 -03:00
parent 5791b11bc4
commit 17bdcc6e8e
14 changed files with 1550 additions and 10 deletions
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31
include/SDL_render.h
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@ -104,6 +104,16 @@ typedef enum
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
*/
@ -599,6 +609,27 @@ extern DECLSPEC int SDLCALL SDL_RenderCopy(SDL_Renderer * renderer,
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 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 A SFL_Flip 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.