Added management and drawing functions for ellipses and polygons.
--- a/Makefile.in Mon May 31 21:23:06 2010 -0400
+++ b/Makefile.in Thu Jun 03 14:43:38 2010 -0400
@@ -44,7 +44,7 @@
DIST = acinclude autogen.sh Borland.html Borland.zip BUGS build-scripts configure configure.in COPYING CREDITS include INSTALL Makefile.minimal Makefile.in README* sdl-config.in sdl.m4 sdl.pc.in SDL.spec SDL.spec.in src test TODO VisualC.html VisualC VisualCE Watcom-Win32.zip WhatsNew Xcode Xcode-iPhoneOS
-HDRS = SDL.h SDL_assert.h SDL_atomic.h SDL_audio.h SDL_compat.h SDL_cpuinfo.h SDL_endian.h SDL_error.h SDL_events.h SDL_haptic.h SDL_joystick.h SDL_keyboard.h SDL_keysym.h SDL_loadso.h SDL_main.h SDL_mouse.h SDL_mutex.h SDL_name.h SDL_opengl.h SDL_opengles.h SDL_pixels.h SDL_platform.h SDL_power.h SDL_quit.h SDL_rect.h SDL_revision.h SDL_rwops.h SDL_scancode.h SDL_shape.h SDL_stdinc.h SDL_surface.h SDL_syswm.h SDL_thread.h SDL_timer.h SDL_types.h SDL_version.h SDL_video.h begin_code.h close_code.h
+HDRS = SDL.h SDL_assert.h SDL_atomic.h SDL_audio.h SDL_compat.h SDL_cpuinfo.h SDL_ellipse.h SDL_endian.h SDL_error.h SDL_events.h SDL_haptic.h SDL_joystick.h SDL_keyboard.h SDL_keysym.h SDL_loadso.h SDL_main.h SDL_mouse.h SDL_mutex.h SDL_name.h SDL_opengl.h SDL_opengles.h SDL_pixels.h SDL_platform.h SDL_poly.h SDL_power.h SDL_quit.h SDL_rect.h SDL_revision.h SDL_rwops.h SDL_scancode.h SDL_shape.h SDL_stdinc.h SDL_surface.h SDL_syswm.h SDL_thread.h SDL_timer.h SDL_types.h SDL_version.h SDL_video.h begin_code.h close_code.h
LT_AGE = @LT_AGE@
LT_CURRENT = @LT_CURRENT@
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/include/SDL_ellipse.h Thu Jun 03 14:43:38 2010 -0400
@@ -0,0 +1,92 @@
+/*
+ SDL - Simple DirectMedia Layer
+ Copyright (C) 2010 Eli Gottlieb
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+ Eli Gottlieb
+ eligottlieb@gmail.com
+*/
+
+/**
+ * \file SDL_ellipse.h
+ *
+ * Header file for SDL_ellipse definition and management functions.
+ */
+
+#ifndef _SDL_ellipse_h
+#define _SDL_ellipse_h
+
+#include "SDL_stdinc.h"
+#include "SDL_error.h"
+#include "SDL_pixels.h"
+#include "SDL_rwops.h"
+
+#include "begin_code.h"
+/* Set up for C function definitions, even when using C++ */
+#ifdef __cplusplus
+/* *INDENT-OFF* */
+extern "C" {
+/* *INDENT-ON* */
+#endif
+
+/**
+ * \brief The structure that defines an ellipse.
+ *
+ * \sa SDL_EllipseEmpty
+ * \sa SDL_EllipseEquals
+ * \sa SDL_EllipsesIntersect
+ * \sa SDL_IntersectEllipseAndLine
+ */
+typedef struct SDL_Ellipse {
+ int x,y;
+ int a,b;
+ int r;
+} SDL_Ellipse;
+
+/**
+ * \brief Returns true if the ellipse has no area.
+ */
+#define SDL_EllipseEmpty(X) ((X)->r <= 0)
+
+/**
+ * \brief Returns true if the two ellipses are equal.
+ */
+#define SDL_EllipseEquals(A, B) (((A)->x == (B)->x) && ((A)->y == (B)->y) && \
+ ((A)->a == (B)->a) && ((A)->b == (B)->b) && ((A)->r == (B)->r))
+
+/**
+ * \brief Determine whether two ellipses intersect.
+ *
+ * \return SDL_TRUE if there is an intersection, SDL_FALSE otherwise.
+ */
+extern DECLSPEC SDL_bool SDLCALL SDL_EllipsesIntersect(const SDL_Ellipse * A,const SDL_Ellipse * B);
+
+/**
+ * \brief Calculate the intersection of an ellipse and line segment.
+ *
+ * \return SDL_TRUE if there is an intersection, SDL_FALSE otherwise.
+ */
+extern DECLSPEC SDL_bool SDLCALL SDL_IntersectEllipseAndLine(const SDL_Ellipse *ellipse,int *X1,int *Y1,int *X2,int *Y2);
+
+/* Ends C function definitions when using C++ */
+#ifdef __cplusplus
+/* *INDENT-OFF* */
+}
+/* *INDENT-ON* */
+#endif
+#include "close_code.h"
+
+#endif /* _SDL_ellipse_h */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/include/SDL_poly.h Thu Jun 03 14:43:38 2010 -0400
@@ -0,0 +1,110 @@
+/*
+ SDL - Simple DirectMedia Layer
+ Copyright (C) 2010 Eli Gottlieb
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+ Eli Gottlieb
+ eligottlieb@gmail.com
+*/
+
+/**
+ * \file SDL_poly.h
+ *
+ * Header file for SDL_poly definition and management functions.
+ */
+
+#ifndef _SDL_poly_h
+#define _SDL_poly_h
+
+#include "SDL_stdinc.h"
+#include "SDL_error.h"
+#include "SDL_pixels.h"
+#include "SDL_rwops.h"
+#include "SDL_rect.h"
+
+#include "begin_code.h"
+/* Set up for C function definitions, even when using C++ */
+#ifdef __cplusplus
+/* *INDENT-OFF* */
+extern "C" {
+/* *INDENT-ON* */
+#endif
+
+/**
+ * \brief The structure that defines an polygon.
+ *
+ * \sa SDL_PolyEmpty
+ * \sa SDL_PolyEquals
+ * \sa SDL_PolysIntersect
+ * \sa SDL_IntersectPoly
+ * \sa SDL_WrapPoints
+ * \sa SDL_IntersectPolyAndLine
+ */
+typedef struct SDL_Poly {
+ SDL_Point *vertices;
+ int count;
+} SDL_Poly;
+
+/**
+ * \brief Returns true if the polygon has no area.
+ */
+#define SDL_PolyEmpty(X) (((X)->vertices == NULL) || ((X)->count <= 2))
+
+/**
+ * \brief Determine whether two polygons are equal.
+ *
+ * \return SDL_TRUE if the polygons are equal, SDL_FALSE otherwise.
+ */
+extern DECLSPEC SDL_bool SDLCALL SDL_PolyEquals(const SDL_Poly *A,const SDL_Poly *A);
+
+/**
+ * \brief Determine whether two rectangles intersect.
+ *
+ * \return SDL_TRUE if there is an intersection, SDL_FALSE otherwise.
+ */
+extern DECLSPEC SDL_bool SDLCALL SDL_PolysIntersect(const SDL_Poly * A,const SDL_Poly * B);
+
+/**
+ * \brief Calculate the intersection of two rectangles.
+ *
+ * \return SDL_TRUE if there is an intersection, SDL_FALSE otherwise.
+ */
+extern DECLSPEC SDL_bool SDLCALL SDL_IntersectPoly(const SDL_Poly * A,const SDL_Poly * B,SDL_Poly * result);
+
+/**
+ * \brief Calculate a minimal polygon wrapping a set of points
+ *
+ * \return 0 on success, -1 if the parameters were invalid, and -2 if an insufficient number of points were supplied
+ * in the output polygon.
+ */
+extern DECLSPEC int SDLCALL SDL_WrapPoints(const SDL_Point * points,int count,SDL_Poly *result);
+
+/**
+ * \brief Calculate the intersection of a polygon and line segment.
+ *
+ * \return SDL_TRUE if there is an intersection, SDL_FALSE otherwise.
+ */
+extern DECLSPEC SDL_bool SDLCALL SDL_IntersectPolyAndLine(const SDL_Poly *poly,int *X1,int *Y1,int *X2,int *Y2);
+
+/* Ends C function definitions when using C++ */
+#ifdef __cplusplus
+/* *INDENT-OFF* */
+}
+/* *INDENT-ON* */
+#endif
+#include "close_code.h"
+
+#endif /* _SDL_poly_h */
--- a/include/SDL_video.h Mon May 31 21:23:06 2010 -0400
+++ b/include/SDL_video.h Thu Jun 03 14:43:38 2010 -0400
@@ -32,6 +32,8 @@
#include "SDL_stdinc.h"
#include "SDL_pixels.h"
#include "SDL_rect.h"
+#include "SDL_ellipse.h"
+#include "SDL_poly.h"
#include "SDL_surface.h"
#include "begin_code.h"
@@ -1238,6 +1240,83 @@
extern DECLSPEC int SDLCALL SDL_RenderFillRects(const SDL_Rect ** rect, int count);
/**
+ * \brief Draw an ellipse on the current rendering target with the drawing color.
+ *
+ * \param ellipse The destination ellipse.
+ *
+ * \return 0 on success, or -1 if there is no rendering context current.
+ */
+extern DECLSPEC int SDLCALL SDL_RenderDrawEllipse(const SDL_Ellipse ellipse);
+
+/**
+ * \brief Draw some number of ellipses in the current rendering target with the drawing color.
+ *
+ * \param ellipse A pointer to an array of destination ellipses.
+ * \param count The number of ellipses.
+ *
+ * \return 0 on success, or -1 if there is no rendering context current.
+ */
+extern DECLSPEC int SDLCALL SDL_RenderDrawEllipses(const SDL_Ellipse ** ellipse, int count);
+
+/**
+ * \brief Fill an ellipse on the current rendering target with the drawing color.
+ *
+ * \param ellipse The destination ellipse
+ *
+ * \return 0 on success, or -1 if there is no rendering context current.
+ */
+extern DECLSPEC int SDLCALL SDL_RenderFillEllipse(const SDL_Ellipse ellipse);
+
+/**
+ * \brief Fill some number of ellipses in the current rendering target with the drawing color.
+ *
+ * \param ellipse A pointer to an array of destination ellipses.
+ * \param count The number of ellipses.
+ *
+ * \return 0 on success, or -1 if there is no rendering context current.
+ */
+extern DECLSPEC int SDLCALL SDL_RenderFillEllipses(const SDL_Ellipse ** ellipse, int count);
+
+/**
+ * \brief Draw a polygon on the current rendering target with the drawing color.
+ *
+ * \param poly The destination polygon.
+ *
+ * \return 0 on success, or -1 if there is no rendering context current.
+ */
+extern DECLSPEC int SDLCALL SDL_RenderDrawPoly(const SDL_Poly poly);
+
+/**
+ * \brief Draw some number of polygons in the current rendering target with the drawing color.
+ *
+ * \param poly A pointer to an array of destination polygons.
+ * \param count The number of polygons.
+ *
+ * \return 0 on success, or -1 if there is no rendering context current.
+ */
+extern DECLSPEC int SDLCALL SDL_RenderDrawPolys(const SDL_Poly ** poly, int count);
+
+/**
+ * \brief Fill a polygon on the current rendering target with the drawing color.
+ *
+ * \param poly The destination polygon
+ *
+ * \return 0 on success, or -1 if there is no rendering context current.
+ */
+extern DECLSPEC int SDLCALL SDL_RenderFillPoly(const SDL_Poly poly);
+
+/**
+ * \brief Fill some number of polygons in the current rendering target with the drawing color.
+ *
+ * \param poly A pointer to an array of destination polygons.
+ * \param count The number of polygons.
+ *
+ * \return 0 on success, or -1 if there is no rendering context current.
+ */
+extern DECLSPEC int SDLCALL SDL_RenderFillPolys(const SDL_Poly ** poly, int count);
+
+
+/**
* \brief Copy a portion of the texture to the current rendering target.
*
* \param texture The source texture.