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
line wrap: on
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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__ */