mirror of https://github.com/libsdl-org/SDL
render: Add floating point versions of various draw APIs.
This commit is contained in:
Ryan C. Gordon
parent
cad0a2f730
commit
8340b0f0e2
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@ -40,7 +40,7 @@ extern "C" {
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#endif
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/**
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* \brief The structure that defines a point
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* \brief The structure that defines a point (integer)
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*
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* \sa SDL_EnclosePoints
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* \sa SDL_PointInRect
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@ -52,7 +52,20 @@ typedef struct SDL_Point
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} SDL_Point;
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/**
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* \brief A rectangle, with the origin at the upper left.
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* \brief The structure that defines a point (floating point)
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*
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* \sa SDL_EnclosePoints
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* \sa SDL_PointInRect
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*/
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typedef struct SDL_FPoint
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{
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float x;
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float y;
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} SDL_FPoint;
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/**
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* \brief A rectangle, with the origin at the upper left (integer).
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*
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* \sa SDL_RectEmpty
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* \sa SDL_RectEquals
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@ -67,6 +80,19 @@ typedef struct SDL_Rect
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int w, h;
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} SDL_Rect;
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/**
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* \brief A rectangle, with the origin at the upper left (floating point).
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*/
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typedef struct SDL_FRect
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{
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float x;
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float y;
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float w;
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float h;
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} SDL_FRect;
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/**
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* \brief Returns true if point resides inside a rectangle.
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*/
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@ -835,6 +835,148 @@ extern DECLSPEC int SDLCALL SDL_RenderCopyEx(SDL_Renderer * renderer,
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const SDL_Point *center,
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const SDL_RendererFlip flip);
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/**
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* \brief Draw a point on the current rendering target.
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*
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* \param renderer The renderer which should draw a point.
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* \param x The x coordinate of the point.
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* \param y The y coordinate of the point.
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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_RenderDrawPointF(SDL_Renderer * renderer,
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float x, float y);
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/**
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* \brief Draw multiple points on the current rendering target.
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*
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* \param renderer The renderer which should draw multiple points.
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* \param points The points to draw
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* \param count The number of points to draw
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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_RenderDrawPointsF(SDL_Renderer * renderer,
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const SDL_FPoint * points,
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int count);
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/**
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* \brief Draw a line on the current rendering target.
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*
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* \param renderer The renderer which should draw a line.
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* \param x1 The x coordinate of the start point.
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* \param y1 The y coordinate of the start point.
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* \param x2 The x coordinate of the end point.
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* \param y2 The y coordinate of the end point.
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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_RenderDrawLineF(SDL_Renderer * renderer,
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float x1, float y1, float x2, float y2);
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/**
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* \brief Draw a series of connected lines on the current rendering target.
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*
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* \param renderer The renderer which should draw multiple lines.
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* \param points The points along the lines
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* \param count The number of points, drawing count-1 lines
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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_RenderDrawLinesF(SDL_Renderer * renderer,
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const SDL_FPoint * points,
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int count);
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/**
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* \brief Draw a rectangle on the current rendering target.
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*
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* \param renderer The renderer which should draw a rectangle.
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* \param rect A pointer to the destination rectangle, or NULL to outline the entire rendering target.
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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_RenderDrawRectF(SDL_Renderer * renderer,
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const SDL_FRect * rect);
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/**
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* \brief Draw some number of rectangles on the current rendering target.
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*
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* \param renderer The renderer which should draw multiple rectangles.
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* \param rects A pointer to an array of destination rectangles.
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* \param count The number of rectangles.
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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_RenderDrawRectsF(SDL_Renderer * renderer,
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const SDL_FRect * rects,
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int count);
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/**
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* \brief Fill a rectangle on the current rendering target with the drawing color.
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*
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* \param renderer The renderer which should fill a rectangle.
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* \param rect A pointer to the destination rectangle, or NULL for the entire
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* rendering target.
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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_RenderFillRectF(SDL_Renderer * renderer,
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const SDL_FRect * rect);
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/**
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* \brief Fill some number of rectangles on the current rendering target with the drawing color.
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*
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* \param renderer The renderer which should fill multiple rectangles.
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* \param rects A pointer to an array of destination rectangles.
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* \param count The number of rectangles.
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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_RenderFillRectsF(SDL_Renderer * renderer,
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const SDL_FRect * rects,
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int count);
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/**
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* \brief Copy a portion of the texture to the current rendering target.
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*
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* \param renderer The renderer which should copy parts of a texture.
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* \param texture The source texture.
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* \param srcrect A pointer to the source rectangle, or NULL for the entire
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* texture.
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* \param dstrect A pointer to the destination rectangle, or NULL for the
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* entire rendering target.
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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_RenderCopyF(SDL_Renderer * renderer,
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SDL_Texture * texture,
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const SDL_Rect * srcrect,
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const SDL_FRect * dstrect);
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/**
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* \brief Copy a portion of the source texture to the current rendering target, rotating it by angle around the given center
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*
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* \param renderer The renderer which should copy parts of a texture.
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* \param texture The source texture.
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* \param srcrect A pointer to the source rectangle, or NULL for the entire
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* texture.
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* \param dstrect A pointer to the destination rectangle, or NULL for the
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* entire rendering target.
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* \param angle An angle in degrees that indicates the rotation that will be applied to dstrect, rotating it in a clockwise direction
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* \param center A pointer to a point indicating the point around which dstrect will be rotated (if NULL, rotation will be done around dstrect.w/2, dstrect.h/2).
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* \param flip An SDL_RendererFlip value stating which flipping actions should be performed on the texture
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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_RenderCopyExF(SDL_Renderer * renderer,
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SDL_Texture * texture,
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const SDL_Rect * srcrect,
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const SDL_FRect * dstrect,
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const double angle,
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const SDL_FPoint *center,
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const SDL_RendererFlip flip);
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/**
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* \brief Read pixels from the current rendering target.
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*
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@ -697,3 +697,13 @@
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#define SDL_IsTablet SDL_IsTablet_REAL
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#define SDL_GetDisplayOrientation SDL_GetDisplayOrientation_REAL
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#define SDL_RenderFlush SDL_RenderFlush_REAL
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#define SDL_RenderDrawPointF SDL_RenderDrawPointF_REAL
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#define SDL_RenderDrawPointsF SDL_RenderDrawPointsF_REAL
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#define SDL_RenderDrawLineF SDL_RenderDrawLineF_REAL
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#define SDL_RenderDrawLinesF SDL_RenderDrawLinesF_REAL
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#define SDL_RenderDrawRectF SDL_RenderDrawRectF_REAL
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#define SDL_RenderDrawRectsF SDL_RenderDrawRectsF_REAL
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#define SDL_RenderFillRectF SDL_RenderFillRectF_REAL
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#define SDL_RenderFillRectsF SDL_RenderFillRectsF_REAL
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#define SDL_RenderCopyF SDL_RenderCopyF_REAL
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#define SDL_RenderCopyExF SDL_RenderCopyExF_REAL
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@ -739,3 +739,13 @@ SDL_DYNAPI_PROC(void,SDL_SensorUpdate,(void),(),)
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SDL_DYNAPI_PROC(SDL_bool,SDL_IsTablet,(void),(),return)
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SDL_DYNAPI_PROC(SDL_DisplayOrientation,SDL_GetDisplayOrientation,(int a),(a),return)
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SDL_DYNAPI_PROC(int,SDL_RenderFlush,(SDL_Renderer *a),(a),return)
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SDL_DYNAPI_PROC(int,SDL_RenderDrawPointF,(SDL_Renderer *a, float b, float c),(a,b,c),return)
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SDL_DYNAPI_PROC(int,SDL_RenderDrawPointsF,(SDL_Renderer *a, const SDL_FPoint *b, int c),(a,b,c),return)
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SDL_DYNAPI_PROC(int,SDL_RenderDrawLineF,(SDL_Renderer *a, float b, float c, float d, float e),(a,b,c,d,e),return)
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SDL_DYNAPI_PROC(int,SDL_RenderDrawLinesF,(SDL_Renderer *a, const SDL_FPoint *b, int c),(a,b,c),return)
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SDL_DYNAPI_PROC(int,SDL_RenderDrawRectF,(SDL_Renderer *a, const SDL_FRect *b),(a,b),return)
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SDL_DYNAPI_PROC(int,SDL_RenderDrawRectsF,(SDL_Renderer *a, const SDL_FRect *b, int c),(a,b,c),return)
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SDL_DYNAPI_PROC(int,SDL_RenderFillRectF,(SDL_Renderer *a, const SDL_FRect *b),(a,b),return)
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SDL_DYNAPI_PROC(int,SDL_RenderFillRectsF,(SDL_Renderer *a, const SDL_FRect *b, int c),(a,b,c),return)
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SDL_DYNAPI_PROC(int,SDL_RenderCopyF,(SDL_Renderer *a, SDL_Texture *b, const SDL_Rect *c, const SDL_FRect *d),(a,b,c,d),return)
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SDL_DYNAPI_PROC(int,SDL_RenderCopyExF,(SDL_Renderer *a, SDL_Texture *b, const SDL_Rect *c, const SDL_FRect *d, const double e, const SDL_FPoint *f, const SDL_RendererFlip g),(a,b,c,d,e,f,g),return)
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@ -2157,31 +2157,37 @@ SDL_RenderClear(SDL_Renderer * renderer)
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return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
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}
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/* !!! FIXME: delete all the duplicate code for the integer versions in 2.1,
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!!! FIXME: making the floating point versions the only available APIs. */
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int
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SDL_RenderDrawPoint(SDL_Renderer * renderer, int x, int y)
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{
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SDL_Point point;
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int retval;
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const SDL_FPoint fpoint = { (float) x, (float) y };
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return SDL_RenderDrawPointsF(renderer, &fpoint, 1);
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}
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point.x = x;
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point.y = y;
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retval = SDL_RenderDrawPoints(renderer, &point, 1);
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return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
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int
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SDL_RenderDrawPointF(SDL_Renderer * renderer, float x, float y)
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{
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const SDL_FPoint fpoint = { x, y };
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return SDL_RenderDrawPointsF(renderer, &fpoint, 1);
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}
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static int
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RenderDrawPointsWithRects(SDL_Renderer * renderer,
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const SDL_Point * points, int count)
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const SDL_Point * points, const int count)
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{
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SDL_FRect *frects;
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int i;
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int retval = -1;
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SDL_bool isstack;
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SDL_FRect *frects = SDL_small_alloc(SDL_FRect, count, &isstack);
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int i;
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frects = SDL_small_alloc(SDL_FRect, count, &isstack);
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if (!frects) {
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return SDL_OutOfMemory();
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}
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for (i = 0; i < count; ++i) {
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frects[i].x = points[i].x * renderer->scale.x;
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frects[i].y = points[i].y * renderer->scale.y;
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@ -2239,21 +2245,148 @@ SDL_RenderDrawPoints(SDL_Renderer * renderer,
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return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
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}
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static int
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RenderDrawPointsWithRectsF(SDL_Renderer * renderer,
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const SDL_FPoint * fpoints, const int count)
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{
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int retval = -1;
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SDL_bool isstack;
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SDL_FRect *frects = SDL_small_alloc(SDL_FRect, count, &isstack);
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int i;
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if (!frects) {
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return SDL_OutOfMemory();
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}
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for (i = 0; i < count; ++i) {
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frects[i].x = fpoints[i].x * renderer->scale.x;
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frects[i].y = fpoints[i].y * renderer->scale.y;
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frects[i].w = renderer->scale.x;
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frects[i].h = renderer->scale.y;
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}
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retval = QueueCmdFillRects(renderer, frects, count);
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SDL_small_free(frects, isstack);
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return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
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}
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int
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SDL_RenderDrawPointsF(SDL_Renderer * renderer,
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const SDL_FPoint * points, int count)
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{
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SDL_FPoint *fpoints;
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int i;
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int retval;
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SDL_bool isstack;
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CHECK_RENDERER_MAGIC(renderer, -1);
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if (!points) {
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return SDL_SetError("SDL_RenderDrawFPoints(): Passed NULL points");
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}
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if (count < 1) {
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return 0;
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}
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/* Don't draw while we're hidden */
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if (renderer->hidden) {
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return 0;
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}
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if (renderer->scale.x != 1.0f || renderer->scale.y != 1.0f) {
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return RenderDrawPointsWithRectsF(renderer, points, count);
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}
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fpoints = SDL_small_alloc(SDL_FPoint, count, &isstack);
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if (!fpoints) {
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return SDL_OutOfMemory();
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}
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for (i = 0; i < count; ++i) {
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fpoints[i].x = points[i].x * renderer->scale.x;
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fpoints[i].y = points[i].y * renderer->scale.y;
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}
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retval = QueueCmdDrawPoints(renderer, fpoints, count);
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SDL_small_free(fpoints, isstack);
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return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
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}
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int
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SDL_RenderDrawLine(SDL_Renderer * renderer, int x1, int y1, int x2, int y2)
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{
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SDL_Point points[2];
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const SDL_FPoint points[2] = { { (float) x1, (float) y1 }, { (float) x2, (float) y2 } };
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return SDL_RenderDrawLinesF(renderer, points, 2);
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}
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points[0].x = x1;
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points[0].y = y1;
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points[1].x = x2;
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points[1].y = y2;
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return SDL_RenderDrawLines(renderer, points, 2);
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int
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SDL_RenderDrawLineF(SDL_Renderer * renderer, float x1, float y1, float x2, float y2)
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{
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const SDL_FPoint points[2] = { { x1, y1 }, { x2, y2 } };
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return SDL_RenderDrawLinesF(renderer, points, 2);
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}
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static int
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RenderDrawLinesWithRects(SDL_Renderer * renderer,
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const SDL_Point * points, int count)
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const SDL_Point * points, const int count)
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{
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SDL_FRect *frect;
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SDL_FRect *frects;
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SDL_FPoint fpoints[2];
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int i, nrects = 0;
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int retval = 0;
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SDL_bool isstack;
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frects = SDL_small_alloc(SDL_FRect, count-1, &isstack);
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if (!frects) {
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return SDL_OutOfMemory();
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}
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for (i = 0; i < count-1; ++i) {
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if (points[i].x == points[i+1].x) {
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const int minY = SDL_min(points[i].y, points[i+1].y);
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const int maxY = SDL_max(points[i].y, points[i+1].y);
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frect = &frects[nrects++];
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frect->x = points[i].x * renderer->scale.x;
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frect->y = minY * renderer->scale.y;
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frect->w = renderer->scale.x;
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frect->h = (maxY - minY + 1) * renderer->scale.y;
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} else if (points[i].y == points[i+1].y) {
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const int minX = SDL_min(points[i].x, points[i+1].x);
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const int maxX = SDL_max(points[i].x, points[i+1].x);
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frect = &frects[nrects++];
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frect->x = minX * renderer->scale.x;
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frect->y = points[i].y * renderer->scale.y;
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frect->w = (maxX - minX + 1) * renderer->scale.x;
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frect->h = renderer->scale.y;
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} else {
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/* FIXME: We can't use a rect for this line... */
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fpoints[0].x = points[i].x * renderer->scale.x;
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fpoints[0].y = points[i].y * renderer->scale.y;
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fpoints[1].x = points[i+1].x * renderer->scale.x;
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fpoints[1].y = points[i+1].y * renderer->scale.y;
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retval += QueueCmdDrawLines(renderer, fpoints, 2);
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}
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}
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retval += QueueCmdFillRects(renderer, frects, nrects);
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SDL_small_free(frects, isstack);
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if (retval < 0) {
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retval = -1;
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}
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return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
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}
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static int
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RenderDrawLinesWithRectsF(SDL_Renderer * renderer,
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const SDL_FPoint * points, const int count)
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{
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SDL_FRect *frect;
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SDL_FRect *frects;
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|
|
@ -2349,20 +2482,83 @@ SDL_RenderDrawLines(SDL_Renderer * renderer,
|
|||
return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
|
||||
}
|
||||
|
||||
int
|
||||
SDL_RenderDrawLinesF(SDL_Renderer * renderer,
|
||||
const SDL_FPoint * points, int count)
|
||||
{
|
||||
SDL_FPoint *fpoints;
|
||||
int i;
|
||||
int retval;
|
||||
SDL_bool isstack;
|
||||
|
||||
CHECK_RENDERER_MAGIC(renderer, -1);
|
||||
|
||||
if (!points) {
|
||||
return SDL_SetError("SDL_RenderDrawLines(): Passed NULL points");
|
||||
}
|
||||
if (count < 2) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Don't draw while we're hidden */
|
||||
if (renderer->hidden) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (renderer->scale.x != 1.0f || renderer->scale.y != 1.0f) {
|
||||
return RenderDrawLinesWithRectsF(renderer, points, count);
|
||||
}
|
||||
|
||||
fpoints = SDL_small_alloc(SDL_FPoint, count, &isstack);
|
||||
if (!fpoints) {
|
||||
return SDL_OutOfMemory();
|
||||
}
|
||||
for (i = 0; i < count; ++i) {
|
||||
fpoints[i].x = points[i].x * renderer->scale.x;
|
||||
fpoints[i].y = points[i].y * renderer->scale.y;
|
||||
}
|
||||
|
||||
retval = QueueCmdDrawLines(renderer, fpoints, count);
|
||||
|
||||
SDL_small_free(fpoints, isstack);
|
||||
|
||||
return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
|
||||
}
|
||||
|
||||
int
|
||||
SDL_RenderDrawRect(SDL_Renderer * renderer, const SDL_Rect * rect)
|
||||
{
|
||||
SDL_Rect full_rect;
|
||||
SDL_Point points[5];
|
||||
SDL_FRect frect;
|
||||
SDL_FRect *prect = NULL;
|
||||
|
||||
if (rect) {
|
||||
frect.x = (float) rect->x;
|
||||
frect.y = (float) rect->y;
|
||||
frect.w = (float) rect->w;
|
||||
frect.h = (float) rect->h;
|
||||
prect = &frect;
|
||||
}
|
||||
|
||||
return SDL_RenderDrawRectF(renderer, prect);
|
||||
}
|
||||
|
||||
int
|
||||
SDL_RenderDrawRectF(SDL_Renderer * renderer, const SDL_FRect * rect)
|
||||
{
|
||||
SDL_FRect frect;
|
||||
SDL_FPoint points[5];
|
||||
|
||||
CHECK_RENDERER_MAGIC(renderer, -1);
|
||||
|
||||
/* If 'rect' == NULL, then outline the whole surface */
|
||||
if (!rect) {
|
||||
SDL_RenderGetViewport(renderer, &full_rect);
|
||||
full_rect.x = 0;
|
||||
full_rect.y = 0;
|
||||
rect = &full_rect;
|
||||
SDL_Rect r;
|
||||
SDL_RenderGetViewport(renderer, &r);
|
||||
frect.x = 0.0f;
|
||||
frect.y = 0.0f;
|
||||
frect.w = (float) r.w;
|
||||
frect.h = (float) r.h;
|
||||
rect = &frect;
|
||||
}
|
||||
|
||||
points[0].x = rect->x;
|
||||
|
|
@ -2375,7 +2571,7 @@ SDL_RenderDrawRect(SDL_Renderer * renderer, const SDL_Rect * rect)
|
|||
points[3].y = rect->y+rect->h-1;
|
||||
points[4].x = rect->x;
|
||||
points[4].y = rect->y;
|
||||
return SDL_RenderDrawLines(renderer, points, 5);
|
||||
return SDL_RenderDrawLinesF(renderer, points, 5);
|
||||
}
|
||||
|
||||
int
|
||||
|
|
@ -2406,21 +2602,76 @@ SDL_RenderDrawRects(SDL_Renderer * renderer,
|
|||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
SDL_RenderDrawRectsF(SDL_Renderer * renderer,
|
||||
const SDL_FRect * rects, int count)
|
||||
{
|
||||
int i;
|
||||
|
||||
CHECK_RENDERER_MAGIC(renderer, -1);
|
||||
|
||||
if (!rects) {
|
||||
return SDL_SetError("SDL_RenderDrawRects(): Passed NULL rects");
|
||||
}
|
||||
if (count < 1) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Don't draw while we're hidden */
|
||||
if (renderer->hidden) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
for (i = 0; i < count; ++i) {
|
||||
if (SDL_RenderDrawRectF(renderer, &rects[i]) < 0) {
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
SDL_RenderFillRect(SDL_Renderer * renderer, const SDL_Rect * rect)
|
||||
{
|
||||
SDL_Rect full_rect = { 0, 0, 0, 0 };
|
||||
SDL_FRect frect;
|
||||
|
||||
CHECK_RENDERER_MAGIC(renderer, -1);
|
||||
|
||||
/* If 'rect' == NULL, then outline the whole surface */
|
||||
if (rect) {
|
||||
frect.x = (float) rect->x;
|
||||
frect.y = (float) rect->y;
|
||||
frect.w = (float) rect->w;
|
||||
frect.h = (float) rect->h;
|
||||
} else {
|
||||
SDL_Rect r;
|
||||
SDL_RenderGetViewport(renderer, &r);
|
||||
frect.x = 0.0f;
|
||||
frect.y = 0.0f;
|
||||
frect.w = (float) r.w;
|
||||
frect.h = (float) r.h;
|
||||
}
|
||||
return SDL_RenderFillRectsF(renderer, &frect, 1);
|
||||
}
|
||||
|
||||
int
|
||||
SDL_RenderFillRectF(SDL_Renderer * renderer, const SDL_FRect * rect)
|
||||
{
|
||||
SDL_FRect frect;
|
||||
|
||||
CHECK_RENDERER_MAGIC(renderer, -1);
|
||||
|
||||
/* If 'rect' == NULL, then outline the whole surface */
|
||||
if (!rect) {
|
||||
SDL_RenderGetViewport(renderer, &full_rect);
|
||||
full_rect.x = 0;
|
||||
full_rect.y = 0;
|
||||
rect = &full_rect;
|
||||
SDL_Rect r;
|
||||
SDL_RenderGetViewport(renderer, &r);
|
||||
frect.x = 0.0f;
|
||||
frect.y = 0.0f;
|
||||
frect.w = (float) r.w;
|
||||
frect.h = (float) r.h;
|
||||
rect = &frect;
|
||||
}
|
||||
return SDL_RenderFillRects(renderer, rect, 1);
|
||||
return SDL_RenderFillRectsF(renderer, rect, 1);
|
||||
}
|
||||
|
||||
int
|
||||
|
|
@ -2464,13 +2715,124 @@ SDL_RenderFillRects(SDL_Renderer * renderer,
|
|||
return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
|
||||
}
|
||||
|
||||
int
|
||||
SDL_RenderFillRectsF(SDL_Renderer * renderer,
|
||||
const SDL_FRect * rects, int count)
|
||||
{
|
||||
SDL_FRect *frects;
|
||||
int i;
|
||||
int retval;
|
||||
SDL_bool isstack;
|
||||
|
||||
CHECK_RENDERER_MAGIC(renderer, -1);
|
||||
|
||||
if (!rects) {
|
||||
return SDL_SetError("SDL_RenderFillFRects(): Passed NULL rects");
|
||||
}
|
||||
if (count < 1) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Don't draw while we're hidden */
|
||||
if (renderer->hidden) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
frects = SDL_small_alloc(SDL_FRect, count, &isstack);
|
||||
if (!frects) {
|
||||
return SDL_OutOfMemory();
|
||||
}
|
||||
for (i = 0; i < count; ++i) {
|
||||
frects[i].x = rects[i].x * renderer->scale.x;
|
||||
frects[i].y = rects[i].y * renderer->scale.y;
|
||||
frects[i].w = rects[i].w * renderer->scale.x;
|
||||
frects[i].h = rects[i].h * renderer->scale.y;
|
||||
}
|
||||
|
||||
retval = QueueCmdFillRects(renderer, frects, count);
|
||||
|
||||
SDL_small_free(frects, isstack);
|
||||
|
||||
return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
|
||||
}
|
||||
|
||||
/* !!! FIXME: move this to a public API if we want to do float versions of all of these later */
|
||||
SDL_FORCE_INLINE SDL_bool SDL_FRectEmpty(const SDL_FRect *r)
|
||||
{
|
||||
return ((!r) || (r->w <= 0.0f) || (r->h <= 0.0f)) ? SDL_TRUE : SDL_FALSE;
|
||||
}
|
||||
|
||||
/* !!! FIXME: move this to a public API if we want to do float versions of all of these later */
|
||||
static SDL_bool
|
||||
SDL_HasIntersectionF(const SDL_FRect * A, const SDL_FRect * B)
|
||||
{
|
||||
float Amin, Amax, Bmin, Bmax;
|
||||
|
||||
if (!A) {
|
||||
SDL_InvalidParamError("A");
|
||||
return SDL_FALSE;
|
||||
}
|
||||
|
||||
if (!B) {
|
||||
SDL_InvalidParamError("B");
|
||||
return SDL_FALSE;
|
||||
}
|
||||
|
||||
/* Special cases for empty rects */
|
||||
if (SDL_FRectEmpty(A) || SDL_FRectEmpty(B)) {
|
||||
return SDL_FALSE;
|
||||
}
|
||||
|
||||
/* Horizontal intersection */
|
||||
Amin = A->x;
|
||||
Amax = Amin + A->w;
|
||||
Bmin = B->x;
|
||||
Bmax = Bmin + B->w;
|
||||
if (Bmin > Amin)
|
||||
Amin = Bmin;
|
||||
if (Bmax < Amax)
|
||||
Amax = Bmax;
|
||||
if (Amax <= Amin)
|
||||
return SDL_FALSE;
|
||||
|
||||
/* Vertical intersection */
|
||||
Amin = A->y;
|
||||
Amax = Amin + A->h;
|
||||
Bmin = B->y;
|
||||
Bmax = Bmin + B->h;
|
||||
if (Bmin > Amin)
|
||||
Amin = Bmin;
|
||||
if (Bmax < Amax)
|
||||
Amax = Bmax;
|
||||
if (Amax <= Amin)
|
||||
return SDL_FALSE;
|
||||
|
||||
return SDL_TRUE;
|
||||
}
|
||||
|
||||
int
|
||||
SDL_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
|
||||
const SDL_Rect * srcrect, const SDL_Rect * dstrect)
|
||||
{
|
||||
SDL_Rect real_srcrect = { 0, 0, 0, 0 };
|
||||
SDL_Rect real_dstrect = { 0, 0, 0, 0 };
|
||||
SDL_FRect frect;
|
||||
SDL_FRect dstfrect;
|
||||
SDL_FRect *pdstfrect = NULL;
|
||||
if (dstrect) {
|
||||
dstfrect.x = (float) dstrect->x;
|
||||
dstfrect.y = (float) dstrect->y;
|
||||
dstfrect.w = (float) dstrect->w;
|
||||
dstfrect.h = (float) dstrect->h;
|
||||
pdstfrect = &dstfrect;
|
||||
}
|
||||
return SDL_RenderCopyF(renderer, texture, srcrect, pdstfrect);
|
||||
}
|
||||
|
||||
int
|
||||
SDL_RenderCopyF(SDL_Renderer * renderer, SDL_Texture * texture,
|
||||
const SDL_Rect * srcrect, const SDL_FRect * dstrect)
|
||||
{
|
||||
SDL_Rect real_srcrect;
|
||||
SDL_FRect real_dstrect;
|
||||
SDL_Rect r;
|
||||
int retval;
|
||||
|
||||
CHECK_RENDERER_MAGIC(renderer, -1);
|
||||
|
|
@ -2495,11 +2857,13 @@ SDL_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
|
|||
}
|
||||
}
|
||||
|
||||
SDL_RenderGetViewport(renderer, &real_dstrect);
|
||||
real_dstrect.x = 0;
|
||||
real_dstrect.y = 0;
|
||||
SDL_RenderGetViewport(renderer, &r);
|
||||
real_dstrect.x = 0.0f;
|
||||
real_dstrect.y = 0.0f;
|
||||
real_dstrect.w = (float) r.w;
|
||||
real_dstrect.h = (float) r.h;
|
||||
if (dstrect) {
|
||||
if (!SDL_HasIntersection(dstrect, &real_dstrect)) {
|
||||
if (!SDL_HasIntersectionF(dstrect, &real_dstrect)) {
|
||||
return 0;
|
||||
}
|
||||
real_dstrect = *dstrect;
|
||||
|
|
@ -2509,31 +2873,56 @@ SDL_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
|
|||
texture = texture->native;
|
||||
}
|
||||
|
||||
frect.x = real_dstrect.x * renderer->scale.x;
|
||||
frect.y = real_dstrect.y * renderer->scale.y;
|
||||
frect.w = real_dstrect.w * renderer->scale.x;
|
||||
frect.h = real_dstrect.h * renderer->scale.y;
|
||||
real_dstrect.x *= renderer->scale.x;
|
||||
real_dstrect.y *= renderer->scale.y;
|
||||
real_dstrect.w *= renderer->scale.x;
|
||||
real_dstrect.h *= renderer->scale.y;
|
||||
|
||||
texture->last_command_generation = renderer->render_command_generation;
|
||||
|
||||
retval = QueueCmdCopy(renderer, texture, &real_srcrect, &frect);
|
||||
retval = QueueCmdCopy(renderer, texture, &real_srcrect, &real_dstrect);
|
||||
return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
|
||||
}
|
||||
|
||||
|
||||
int
|
||||
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)
|
||||
{
|
||||
SDL_Rect real_srcrect = { 0, 0, 0, 0 };
|
||||
SDL_Rect real_dstrect = { 0, 0, 0, 0 };
|
||||
SDL_Point real_center;
|
||||
SDL_FRect frect;
|
||||
SDL_FRect dstfrect;
|
||||
SDL_FRect *pdstfrect = NULL;
|
||||
SDL_FPoint fcenter;
|
||||
SDL_FPoint *pfcenter = NULL;
|
||||
|
||||
if (dstrect) {
|
||||
dstfrect.x = (float) dstrect->x;
|
||||
dstfrect.y = (float) dstrect->y;
|
||||
dstfrect.w = (float) dstrect->w;
|
||||
dstfrect.h = (float) dstrect->h;
|
||||
pdstfrect = &dstfrect;
|
||||
}
|
||||
|
||||
if (center) {
|
||||
fcenter.x = (float) center->x;
|
||||
fcenter.y = (float) center->y;
|
||||
pfcenter = &fcenter;
|
||||
}
|
||||
|
||||
return SDL_RenderCopyExF(renderer, texture, srcrect, pdstfrect, angle, pfcenter, flip);
|
||||
}
|
||||
|
||||
int
|
||||
SDL_RenderCopyExF(SDL_Renderer * renderer, SDL_Texture * texture,
|
||||
const SDL_Rect * srcrect, const SDL_FRect * dstrect,
|
||||
const double angle, const SDL_FPoint *center, const SDL_RendererFlip flip)
|
||||
{
|
||||
SDL_Rect real_srcrect;
|
||||
SDL_FRect real_dstrect;
|
||||
SDL_FPoint real_center;
|
||||
int retval;
|
||||
|
||||
if (flip == SDL_FLIP_NONE && (int)(angle/360) == angle/360) { /* fast path when we don't need rotation or flipping */
|
||||
return SDL_RenderCopy(renderer, texture, srcrect, dstrect);
|
||||
return SDL_RenderCopyF(renderer, texture, srcrect, dstrect);
|
||||
}
|
||||
|
||||
CHECK_RENDERER_MAGIC(renderer, -1);
|
||||
|
|
@ -2565,9 +2954,12 @@ SDL_RenderCopyEx(SDL_Renderer * renderer, SDL_Texture * texture,
|
|||
if (dstrect) {
|
||||
real_dstrect = *dstrect;
|
||||
} else {
|
||||
SDL_RenderGetViewport(renderer, &real_dstrect);
|
||||
real_dstrect.x = 0;
|
||||
real_dstrect.y = 0;
|
||||
SDL_Rect r;
|
||||
SDL_RenderGetViewport(renderer, &r);
|
||||
real_dstrect.x = 0.0f;
|
||||
real_dstrect.y = 0.0f;
|
||||
real_dstrect.w = (float) r.w;
|
||||
real_dstrect.h = (float) r.h;
|
||||
}
|
||||
|
||||
if (texture->native) {
|
||||
|
|
@ -2577,21 +2969,22 @@ SDL_RenderCopyEx(SDL_Renderer * renderer, SDL_Texture * texture,
|
|||
if (center) {
|
||||
real_center = *center;
|
||||
} else {
|
||||
real_center.x = real_dstrect.w/2;
|
||||
real_center.y = real_dstrect.h/2;
|
||||
real_center.x = real_dstrect.w / 2.0f;
|
||||
real_center.y = real_dstrect.h / 2.0f;
|
||||
}
|
||||
|
||||
frect.x = real_dstrect.x * renderer->scale.x;
|
||||
frect.y = real_dstrect.y * renderer->scale.y;
|
||||
frect.w = real_dstrect.w * renderer->scale.x;
|
||||
frect.h = real_dstrect.h * renderer->scale.y;
|
||||
real_dstrect.x *= renderer->scale.x;
|
||||
real_dstrect.y *= renderer->scale.y;
|
||||
real_dstrect.w *= renderer->scale.x;
|
||||
real_dstrect.h *= renderer->scale.y;
|
||||
|
||||
fcenter.x = real_center.x * renderer->scale.x;
|
||||
fcenter.y = real_center.y * renderer->scale.y;
|
||||
real_center.x *= renderer->scale.x;
|
||||
real_center.y *= renderer->scale.y;
|
||||
|
||||
texture->last_command_generation = renderer->render_command_generation;
|
||||
|
||||
return QueueCmdCopyEx(renderer, texture, &real_srcrect, &frect, angle, &fcenter, flip);
|
||||
retval = QueueCmdCopyEx(renderer, texture, &real_srcrect, &real_dstrect, angle, &real_center, flip);
|
||||
return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
|
||||
}
|
||||
|
||||
int
|
||||
|
|
|
|||
|
|
@ -39,20 +39,6 @@ typedef enum
|
|||
SDL_ScaleModeBest
|
||||
} SDL_ScaleMode;
|
||||
|
||||
typedef struct
|
||||
{
|
||||
float x;
|
||||
float y;
|
||||
} SDL_FPoint;
|
||||
|
||||
typedef struct
|
||||
{
|
||||
float x;
|
||||
float y;
|
||||
float w;
|
||||
float h;
|
||||
} SDL_FRect;
|
||||
|
||||
/* Define the SDL texture structure */
|
||||
struct SDL_Texture
|
||||
{
|
||||
|
|
|
|||
Loading…
Reference in New Issue