Mercurial > sdl-ios-xcode
view src/video/qnxgf/SDL_gf_input.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 | 7f684f249ec9 |
children | f7b03b6838cb |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga 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 Sam Lantinga slouken@libsdl.org QNX Graphics Framework SDL driver Copyright (C) 2009 Mike Gorchak (mike@malva.ua, lestat@i.com.ua) */ #ifndef __SDL_GF_INPUT_H__ #define __SDL_GF_INPUT_H__ #include "SDL_config.h" #include "SDL_video.h" #include "../SDL_sysvideo.h" #include <errno.h> #include <gf/gf.h> #include <sys/hiddi.h> #include <sys/hidut.h> #include "SDL_qnxgf.h" typedef struct SDL_MouseData { SDL_DisplayData *didata; } SDL_MouseData; int32_t gf_addinputdevices(_THIS); int32_t gf_delinputdevices(_THIS); #define SDL_GF_MOUSE_COLOR_BLACK 0xFF000000 #define SDL_GF_MOUSE_COLOR_WHITE 0xFFFFFFFF #define SDL_GF_MOUSE_COLOR_TRANS 0x00000000 /*****************************************************************************/ /* This is HIDDI closed interface declarations */ /*****************************************************************************/ #define HID_TYPE_MAIN 0x0 #define HID_TYPE_GLOBAL 0x1 #define HID_TYPE_LOCAL 0x2 #define HID_TYPE_RESERVED 0x3 #define HID_GLOBAL_USAGE_PAGE 0x0 #define HID_LOCAL_USAGE 0x0 typedef struct _hid_byte { uint8_t HIDB_Length; uint8_t HIDB_Type; uint8_t HIDB_Tag; uint8_t reserved[1]; } hid_byte_t; typedef struct _hidd_global_item { uint16_t usage_page; uint16_t logical_min; uint16_t logical_max; uint16_t physical_min; uint16_t physical_max; uint16_t unit_expo; uint16_t unit; uint16_t report_size; uint16_t report_id; uint16_t report_count; } hidd_global_item_t; typedef struct _hidd_local_item { uint16_t type; uint8_t reserved[2]; uint32_t value; struct _hidd_local_item *next_local; struct _hidd_local_item *alt_local; } hidd_local_item_t; typedef struct _hidd_local_table { hidd_local_item_t *usage_info; hidd_local_item_t *designator_info; hidd_local_item_t *string_info; uint8_t delimiter; uint8_t reserved[3]; } hidd_local_table_t; typedef struct _hidd_field { struct hidd_report_instance *report; struct hidd_collection *collection; uint16_t report_offset; uint16_t flags; hidd_global_item_t gitem; hidd_local_table_t *ltable; struct _hidd_field *next_field; void *user; } hidd_field_t; typedef struct hidd_report_instance { uint8_t report_id; uint8_t reserved[1]; uint16_t report_type; hidd_field_t *field; uint16_t num_field; uint16_t byte_len; uint16_t bit_len; uint8_t reserved2[2]; struct hidd_collection *collection; struct hidd_report_instance *next_col_report; struct hidd_report_instance *next_report; } hidd_report_instance_t; typedef struct hidd_report { TAILQ_ENTRY(hidd_report) link; hidd_report_instance_t *rinst; hidd_device_instance_t *dev_inst; uint32_t flags; struct hidd_connection *connection; void *user; } hidd_report_t; typedef struct hidview_device { struct hidd_report_instance *instance; struct hidd_report *report; } hidview_device_t; /*****************************************************************************/ /* Closed HIDDI interface declarations end */ /*****************************************************************************/ /* Maximum devices and subdevices amount per host */ #define SDL_HIDDI_MAX_DEVICES 64 /* Detected device/subdevice type for SDL */ #define SDL_GF_HIDDI_NONE 0x00000000 #define SDL_GF_HIDDI_MOUSE 0x00000001 #define SDL_GF_HIDDI_KEYBOARD 0x00000002 #define SDL_GF_HIDDI_JOYSTICK 0x00000003 extern void hiddi_enable_mouse(); extern void hiddi_disable_mouse(); #endif /* __SDL_GF_INPUT_H__ */