view src/video/nanox/SDL_nxmouse.c @ 2359:b70b96e615d2 gsoc2008_iphone

These files are the OpenGL ES render driver. You should be able to use them on any platform that supports OpenGL ES -- not just iPhone. The driver is based off the OpenGL render driver. There are a few differences between OpenGL and OpenGL ES that present difficulties for this driver: - OpenGL ES does NOT support many pixel formats (for example, no GL_BGR). Also, when using texture functions format and internalFormat must be the same -- this means 32 bit packed formats like SDL_PIXELFORMAT_BGR888 cannot be automatically converted to GL_RGB (which is 24bpp). - OpenGL ES doesn't have GL_PACK_ROW_LENGTH, which means data must be reformatted before uploading changes to dirty rects. This change has been added. - OpenGL ES doesn't support paletted textures, though there is an extension. I'm looking into this. Some other notable differences: - OpenGL ES has an extension called GL_OES_draw_texture which allows for quicker 2D sprite-type drawing. I use this in GL_RenderCopy when it is available. The iPhone supports the extension, but the iPhone Simulator does not (presently). - No glBegin() / glEnd() and no GL_QUADS! I'm using glDrawArrays with GL_TRIANGLE_STRIP instead!
author Holmes Futrell <hfutrell@umail.ucsb.edu>
date Thu, 17 Jul 2008 23:31:42 +0000
parents c121d94672cb
children 99210400e8b9
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2004 Sam Lantinga
    Copyright (C) 2001  Hsieh-Fu Tsai

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 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
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    Sam Lantinga
    slouken@libsdl.org
    
    Hsieh-Fu Tsai
    clare@setabox.com
*/
#include "SDL_config.h"

#include "../../events/SDL_events_c.h"

#include "SDL_nxmouse_c.h"

// The implementation dependent data for the window manager cursor
struct WMcursor
{
    int unused;
};

WMcursor *
NX_CreateWMCursor(_THIS,
                  Uint8 * data, Uint8 * mask, int w, int h, int hot_x,
                  int hot_y)
{
    WMcursor *cursor;

    Dprintf("enter NX_CreateWMCursor\n");

    cursor = (WMcursor *) SDL_malloc(sizeof(WMcursor));
    if (cursor == NULL) {
        SDL_OutOfMemory();
        return NULL;
    }

    Dprintf("leave NX_CreateWMCursor\n");
    return cursor;
}

void
NX_FreeWMCursor(_THIS, WMcursor * cursor)
{
    Dprintf("NX_FreeWMCursor\n");
    SDL_free(cursor);
    return;
}

void
NX_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
{
    GR_WINDOW_INFO info;

    Dprintf("enter NX_WarpWMCursor\n");
    SDL_Lock_EventThread();

    GrGetWindowInfo(SDL_Window, &info);
    GrMoveCursor(info.x + x, info.y + y);

    SDL_Unlock_EventThread();
    Dprintf("leave NX_WarpWMCursor\n");
}

int
NX_ShowWMCursor(_THIS, WMcursor * cursor)
{
    Dprintf("NX_ShowWMCursor\n");
    return 1;
}

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