sdl-ios-xcode: include/SDL

annotate include/SDL_rect.h @ 3485:e77a69aae239

Mason Wheeler to sdl I updated SDL, and suddenly my SDL frames stopped working. They'd "initialize" full of gibberish, and I couldn't render anything to them. After a bit of digging, I found a problem: the renderer initialization routine in my SDL frame code wasn't getting called anymore. procedure TSdlFrame.Paint; begin if SDL_SelectRenderer(FWindowID) = -1 then CreateRenderer; SDL_RenderPresent; end; function TSdlFrame.CreateRenderer: boolean; const pf: tagPIXELFORMATDESCRIPTOR = (nSize: sizeof(pf); nVersion: 1; dwFlags: PFD_DRAW_TO_WINDOW or PFD_SUPPORT_OPENGL or PFD_DOUBLEBUFFER; iPixelType: PFD_TYPE_RGBA; cColorBits: 24; cAlphaBits: 8; iLayerType: PFD_MAIN_PLANE); RENDERERS: array[TRendererType] of AnsiString = ('software', 'gdi', 'opengl', 'd3d'); var pFormat: integer; begin if (SDL_SelectRenderer(FWindowID) = 0) then begin result := true; Exit; end; if FRendererType = rtOpenGL then begin pFormat := ChoosePixelFormat(canvas.Handle, @pf); if not SetPixelFormat(canvas.Handle, pFormat, @pf) then outputDebugString(PChar(SysErrorMessage(GetLastError))); if wglCreateContext(canvas.Handle) = 0 then outputDebugString(PChar(SysErrorMessage(GetLastError))); end; if (SDL_CreateRenderer(FWindowID, SDL_RendererIndex(RENDERERS[FRendererType]), [sdlrPresentFlip3, sdlrAccelerated]) = 0) then begin SDL_ShowWindow(FWindowID); assert(SDL_SetRenderDrawColor(0, 0, 0, 255) = 0); FFlags := SDL_GetWindowFlags(FWindowID); if assigned(FOnAvailable) then FOnAvailable(self); end else outputDebugString(pChar(format('SDL_CreateRenderer failed: %s', [sdl_GetError]))); result := SDL_SelectRenderer(FWindowID) = 0; end; This is a critical issue. The Paint method gets called when the control receives a WM_PAINT message from Windows. I can't create the renderer before then, or it will fail and cause trouble. And when I do create it, it needs to be created with certain parameters. So imagine my surprise when I started debugging into the DLL and found that SDL_SelectRenderer was trying to be "helpful" by creating the renderer for me if it didn't already exist! Now not only does my initialization code not get called, I end up with the wrong renderer and so things don't render as expected when I try to use the window.

author	Sam Lantinga <slouken@libsdl.org>
date	Tue, 24 Nov 2009 04:48:12 +0000
parents	d3baf5ac4e37
children	0267b8b1595c

rev	line source
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1 /*
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	2 SDL - Simple DirectMedia Layer
2859 99210400e8b9 Updated copyright date Sam Lantinga <slouken@libsdl.org> parents: 2275 diff changeset	3 Copyright (C) 1997-2009 Sam Lantinga
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	4
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	5 This library is free software; you can redistribute it and/or
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	6 modify it under the terms of the GNU Lesser General Public
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	7 License as published by the Free Software Foundation; either
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	8 version 2.1 of the License, or (at your option) any later version.
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	9
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	13 Lesser General Public License for more details.
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	14
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	15 You should have received a copy of the GNU Lesser General Public
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	16 License along with this library; if not, write to the Free Software
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	18
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	19 Sam Lantinga
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	20 slouken@libsdl.org
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	21 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	22
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	23 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	24 * \file SDL_rect.h
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	25 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	26 * Header file for SDL_rect definition and management functions.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	27 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	28
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	29 #ifndef _SDL_rect_h
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	30 #define _SDL_rect_h
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	31
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	32 #include "SDL_stdinc.h"
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	33 #include "SDL_error.h"
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	34 #include "SDL_pixels.h"
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	35 #include "SDL_rwops.h"
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	36
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	37 #include "begin_code.h"
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	38 /* Set up for C function definitions, even when using C++ */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	39 #ifdef __cplusplus
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	40 /* INDENT-OFF */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	41 extern "C" {
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	42 /* INDENT-ON */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	43 #endif
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	44
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	45 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	46 * \brief A rectangle, with the origin at the upper left.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	47 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	48 * \sa SDL_RectEmpty
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	49 * \sa SDL_RectEquals
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	50 * \sa SDL_HasIntersection
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	51 * \sa SDL_IntersectRect
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	52 * \sa SDL_UnionRect
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	53 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	54 typedef struct SDL_Rect
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	55 {
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	56 int x, y;
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	57 int w, h;
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	58 } SDL_Rect;
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	59
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	60 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	61 * \brief Returns true if the rectangle has no area.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	62 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	63 #define SDL_RectEmpty(X) (((X)->w <= 0) \|\| ((X)->h <= 0))
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	64
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	65 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	66 * \brief Returns true if the two rectangles are equal.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	67 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	68 #define SDL_RectEquals(A, B) (((A)->x == (B)->x) && ((A)->y == (B)->y) && \
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	69 ((A)->w == (B)->w) && ((A)->h == (B)->h))
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	70
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	71 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	72 * \brief Determine whether two rectangles intersect.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	73 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	74 * \return SDL_TRUE if there is an intersection, SDL_FALSE otherwise.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	75 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	76 extern DECLSPEC SDL_bool SDLCALL SDL_HasIntersection(const SDL_Rect * A,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	77 const SDL_Rect * B);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	78
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	79 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	80 * \brief Calculate the intersection of two rectangles.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	81 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	82 * \return SDL_TRUE if there is an intersection, SDL_FALSE otherwise.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	83 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	84 extern DECLSPEC SDL_bool SDLCALL SDL_IntersectRect(const SDL_Rect * A,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	85 const SDL_Rect * B,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	86 SDL_Rect * result);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	87
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	88 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	89 * \brief Calculate the union of two rectangles.
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	90 */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	91 extern DECLSPEC void SDLCALL SDL_UnionRect(const SDL_Rect * A,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	92 const SDL_Rect * B,
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	93 SDL_Rect * result);
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	94
2909 3da0bb421d83 Added line clipping Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	95 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	96 * \brief Calculate the intersection of a rectangle and line segment.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	97 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 2909 diff changeset	98 * \return SDL_TRUE if there is an intersection, SDL_FALSE otherwise.
2909 3da0bb421d83 Added line clipping Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	99 */
3da0bb421d83 Added line clipping Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	100 extern DECLSPEC SDL_bool SDLCALL SDL_IntersectRectAndLine(const SDL_Rect *
3da0bb421d83 Added line clipping Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	101 rect, int *X1,
3da0bb421d83 Added line clipping Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	102 int Y1, int X2,
3da0bb421d83 Added line clipping Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	103 int *Y2);
3da0bb421d83 Added line clipping Sam Lantinga <slouken@libsdl.org> parents: 2859 diff changeset	104
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	105 /* Ends C function definitions when using C++ */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	106 #ifdef __cplusplus
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	107 /* INDENT-OFF */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	108 }
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	109 /* INDENT-ON */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	110 #endif
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	111 #include "close_code.h"
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	112
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	113 #endif /* _SDL_rect_h */
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	114
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	115 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate include/SDL_rect.h @ 3485:e77a69aae239