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view src/video/photon/SDL_ph_gl.c @ 4393:9afe12fb4c41 SDL-1.2

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Fixed bug #901 Tim Angus 2009-12-11 11:45:46 PST Disable mouse event generation when state is not SDL_APPMOUSEFOCUS If a Windows SDL application is minimised by using alt-tab, SDL_APPMOUSEFOCUS is lost as part of the minimisation. Unfortunately, the directx driver doesn't pay any attention to this state when generating mouse button events, so clicking on the Desktop can cause mouse clicks in the SDL application, while it's still minimised. The attached patch fixes this. It looks much more complicated than it actually is due to indentation; here it is ignoring whitespace: tma@abraxas:~/sources/SDL-1.2-svn$ svn diff -x -b Index: src/video/windx5/SDL_dx5events.c =================================================================== --- src/video/windx5/SDL_dx5events.c (revision 5376) +++ src/video/windx5/SDL_dx5events.c (working copy) @@ -374,10 +374,9 @@ if ( !(SDL_GetAppState() & SDL_APPMOUSEFOCUS) ) { mouse_lost = 1; ClipCursor(NULL); - } - + } else { /* If the mouse was lost, regain some sense of mouse state */ - if ( mouse_lost && (SDL_GetAppState() & SDL_APPMOUSEFOCUS) ) { + if ( mouse_lost ) { POINT mouse_pos; Uint8 old_state; Uint8 new_state; @@ -548,6 +547,7 @@ if ( xrel || yrel ) { post_mouse_motion(1, xrel, yrel); } + } } /* The main Win32 event handler */
author Sam Lantinga <slouken@libsdl.org>
date Mon, 14 Dec 2009 22:41:31 +0000
parents a1b03ba2fcd0
children
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
*/
#include "SDL_config.h"

#include <dlfcn.h>
#include "SDL.h"
#include "SDL_ph_gl.h"

#if SDL_VIDEO_OPENGL

#if (_NTO_VERSION >= 630)
    /* PhotonGL functions */
    GLPH_DECLARE_FUNCS;
#endif /* 6.3.0 */

#if (_NTO_VERSION < 630)
void ph_GL_SwapBuffers(_THIS)
{
    PgSetRegion(PtWidgetRid(window));
    PdOpenGLContextSwapBuffers(oglctx);
}
#else
void ph_GL_SwapBuffers(_THIS)
{
    qnxgl_swap_buffers(oglbuffers);
}
#endif /* 6.3.0 */

int ph_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
{
    switch (attrib)
    {
        case SDL_GL_DOUBLEBUFFER:
             *value=this->gl_config.double_buffer;
             break;
        case SDL_GL_STENCIL_SIZE:
             *value=this->gl_config.stencil_size;
             break;
        case SDL_GL_DEPTH_SIZE:
             *value=this->gl_config.depth_size;
             break;
#if (_NTO_VERSION >= 630)
        case SDL_GL_RED_SIZE:
             *value=this->gl_config.red_size;
             break;
        case SDL_GL_GREEN_SIZE:
             *value=this->gl_config.green_size;
             break;
        case SDL_GL_BLUE_SIZE:
             *value=this->gl_config.blue_size;
             break;
        case SDL_GL_ALPHA_SIZE:
             *value=this->gl_config.alpha_size;
             break;
        case SDL_GL_ACCUM_RED_SIZE:
             *value=this->gl_config.accum_red_size;
             break;
        case SDL_GL_ACCUM_GREEN_SIZE:
             *value=this->gl_config.accum_green_size;
             break;
        case SDL_GL_ACCUM_BLUE_SIZE:
             *value=this->gl_config.accum_blue_size;
             break;
        case SDL_GL_ACCUM_ALPHA_SIZE:
             *value=this->gl_config.accum_alpha_size;
             break;
        case SDL_GL_STEREO:
             *value=this->gl_config.stereo;
             break;
#endif /* 6.3.0 */
        default:
             *value=0;
             return(-1);
    }
    return 0;
}

#if (_NTO_VERSION < 630)
int ph_GL_LoadLibrary(_THIS, const char* path)
{
    /* if code compiled with SDL_VIDEO_OPENGL, that mean that library already linked */
    this->gl_config.driver_loaded = 1;

    return 0;
}
#else
int ph_GL_LoadLibrary(_THIS, const char* path)
{
    void* handle;
    int dlopen_flags=RTLD_WORLD | RTLD_GROUP;

    if (this->gl_config.dll_handle!=NULL)
    {
        return 0;
    }

    handle = dlopen(path, dlopen_flags);

    if (handle==NULL)
    {
        SDL_SetError("ph_GL_LoadLibrary(): Could not load OpenGL library");
        return -1;
    }

    this->gl_config.dll_handle = handle;
    this->gl_config.driver_loaded = 1;

    SDL_strlcpy(this->gl_config.driver_path, path, SDL_arraysize(this->gl_config.driver_path));

    return 0;
}
#endif /* 6.3.0 */

#if (_NTO_VERSION < 630)
void* ph_GL_GetProcAddress(_THIS, const char* proc)
{
    return NULL;
}
#else
void* ph_GL_GetProcAddress(_THIS, const char* proc)
{
    void* function;

    if (this->gl_config.dll_handle==NULL)
    {
        ph_GL_LoadLibrary(this, DEFAULT_OPENGL);
        if (this->gl_config.dll_handle==NULL)
        {
            return NULL;
        }
    }
   
    function=qnxgl_get_func(proc, oglctx, 0);
    if (function==NULL)
    {
        function=dlsym(this->gl_config.dll_handle, proc);
    }

    return function;
}
#endif /* 6.3.0 */

#if (_NTO_VERSION < 630)
int ph_GL_MakeCurrent(_THIS)
{
    PgSetRegion(PtWidgetRid(window));

    if (oglctx!=NULL)
    {
        PhDCSetCurrent(oglctx);
    }

    return 0;
}
#else
int ph_GL_MakeCurrent(_THIS)
{
    PgSetRegion(PtWidgetRid(window));

    if (oglctx!=NULL)
    {
        if (qnxgl_set_current(oglctx) == -1)
        {
           return -1;
        }
    }

    return 0;
}
#endif /* 6.3.0 */

#if (_NTO_VERSION < 630)

/* This code is actual for the Photon3D Runtime which was available prior to 6.3 only */

int ph_SetupOpenGLContext(_THIS, int width, int height, int bpp, Uint32 flags)
{
    PhDim_t dim;
    uint64_t OGLAttrib[PH_OGL_MAX_ATTRIBS];
    int exposepost=0;
    int OGLargc;

    dim.w=width;
    dim.h=height;
    
    if ((oglctx!=NULL) && (oglflags==flags) && (oglbpp==bpp))
    {
       PdOpenGLContextResize(oglctx, &dim);
       PhDCSetCurrent(oglctx);
       return 0;
    }
    else
    {
       if (oglctx!=NULL)
       {
          PhDCSetCurrent(NULL);
          PhDCRelease(oglctx);
          oglctx=NULL;
          exposepost=1;
       }
    }

    OGLargc=0;
    if (this->gl_config.depth_size)
    {
        OGLAttrib[OGLargc++]=PHOGL_ATTRIB_DEPTH_BITS;
        OGLAttrib[OGLargc++]=this->gl_config.depth_size;
    }
    if (this->gl_config.stencil_size)
    {
        OGLAttrib[OGLargc++]=PHOGL_ATTRIB_STENCIL_BITS;
        OGLAttrib[OGLargc++]=this->gl_config.stencil_size;
    }
    OGLAttrib[OGLargc++]=PHOGL_ATTRIB_FORCE_SW;
    if (flags & SDL_FULLSCREEN)
    {
        OGLAttrib[OGLargc++]=PHOGL_ATTRIB_FULLSCREEN;
        OGLAttrib[OGLargc++]=PHOGL_ATTRIB_DIRECT;
        OGLAttrib[OGLargc++]=PHOGL_ATTRIB_FULLSCREEN_BEST;
        OGLAttrib[OGLargc++]=PHOGL_ATTRIB_FULLSCREEN_CENTER;
    }
    OGLAttrib[OGLargc++]=PHOGL_ATTRIB_NONE;

    if (this->gl_config.double_buffer)
    {
        oglctx=PdCreateOpenGLContext(2, &dim, 0, OGLAttrib);
    }
    else
    {
        oglctx=PdCreateOpenGLContext(1, &dim, 0, OGLAttrib);
    }

    if (oglctx==NULL)
    {
        SDL_SetError("ph_SetupOpenGLContext(): cannot create OpenGL context !\n");
        return -1;
    }

    PhDCSetCurrent(oglctx);

    PtFlush();

    oglflags=flags;
    oglbpp=bpp;

    if (exposepost!=0)
    {
        /* OpenGL context has been recreated, so report about this fact */
        SDL_PrivateExpose();
    }

    return 0;
}

#else /* _NTO_VERSION */

/* This code is actual for the built-in PhGL support, which became available since 6.3 */

int ph_SetupOpenGLContext(_THIS, int width, int height, int bpp, Uint32 flags)
{
    qnxgl_buf_attrib_t qnxgl_attribs[PH_OGL_MAX_ATTRIBS];
    qnxgl_buf_attrib_t* qnxgl_attribs_slide;
    int num_interfaces = 0;
    int num_buffers = 0;

    /* Initialize the OpenGL subsystem */

    num_interfaces = qnxgl_init(NULL, NULL, 0);

    if (num_interfaces < 0)
    {
        SDL_SetError("ph_SetupOpenGLContext(): cannot initialize OpenGL subsystem !\n");
        return -1;
    }
    if (num_interfaces == 0)
    {
        SDL_SetError("ph_SetupOpenGLContext(): there are no available OpenGL renderers was found !\n");
        return -1;
    }

    /* Driver is linked */
    this->gl_config.driver_loaded=1;

    /* Initialize the OpenGL context attributes */
    qnxgl_attribs_slide=qnxgl_attribs;

    /* Depth size */
    if (this->gl_config.depth_size)
    {
        fprintf(stderr, "setted depth size %d\n", this->gl_config.depth_size);
        qnxgl_attribs_slide = qnxgl_attrib_set_depth(qnxgl_attribs_slide, this->gl_config.depth_size);
    }

    /* Stencil size */
    if (this->gl_config.stencil_size)
    {
        qnxgl_attribs_slide = qnxgl_attrib_set_stencil(qnxgl_attribs_slide, this->gl_config.stencil_size);
    }

    /* The sum of the accum bits of each channel */
    if ((this->gl_config.accum_red_size != 0) && (this->gl_config.accum_blue_size != 0) &&
        (this->gl_config.accum_green_size != 0))
    {
        qnxgl_attribs_slide = qnxgl_attrib_set_accum(qnxgl_attribs_slide,
           this->gl_config.accum_red_size + this->gl_config.accum_blue_size +
           this->gl_config.accum_green_size + this->gl_config.accum_alpha_size);
    }
    
    /* Stereo mode */
    if (this->gl_config.stereo)
    {
        qnxgl_attribs_slide = qnxgl_attrib_set_stereo(qnxgl_attribs_slide);
    }

    /* Fullscreen mode */
    if ((flags & SDL_FULLSCREEN) == SDL_FULLSCREEN)
    {
        qnxgl_attribs_slide = qnxgl_attrib_set_hint_fullscreen(qnxgl_attribs_slide);
    }
    
    /* Double buffering mode */
    if (this->gl_config.double_buffer)
    {
        num_buffers=2;
    }
    else
    {
        num_buffers=1;
    }

    /* Loading the function pointers so we can use the extensions */
    GLPH_LOAD_FUNCS_GC(oglctx);

    /* Set the buffers region to be that of our window's region */
    qnxgl_attribs_slide = glph_attrib_set_region(qnxgl_attribs_slide, PtWidgetRid(window));

    /* End of the attributes array */
    qnxgl_attribs_slide = qnxgl_attrib_set_end(qnxgl_attribs_slide);
    
    /* Create the buffers with the specified color model */
    fprintf(stderr, "ARGB: %d, %d, %d, %d\n", this->gl_config.alpha_size, this->gl_config.red_size, this->gl_config.green_size, this->gl_config.blue_size);
    oglbuffers = qnxgl_buffers_create(
                   QNXGL_FORMAT_BEST_RGB,
/*                 __QNXGL_BUILD_FORMAT(0, __QNXGL_COLOR_MODEL_RGB, this->gl_config.alpha_size,
                     this->gl_config.red_size, this->gl_config.green_size, this->gl_config.blue_size), */
                 num_buffers, width, height, qnxgl_attribs, -1);


    if (oglbuffers == NULL)
    {
        SDL_SetError("ph_SetupOpenGLContext(): failed to create OpenGL buffers !\n");
        qnxgl_finish();
        return -1;
    }

    /* Create a QNXGL context for the previously created buffer */
    oglctx = qnxgl_context_create(oglbuffers, NULL);

    if (oglctx == NULL)
    {
        SDL_SetError("ph_SetupOpenGLContext(): failed to create OpenGL context !\n");
        qnxgl_buffers_destroy(oglbuffers);
        qnxgl_finish();
        return -1;
    }

    /* Attempt to make the context current so we can use OpenGL commands */
    if (qnxgl_set_current(oglctx) == -1)
    {
        SDL_SetError("ph_SetupOpenGLContext(): failed to make the OpenGL context current !\n");
        qnxgl_context_destroy(oglctx);
        qnxgl_buffers_destroy(oglbuffers);
        qnxgl_finish();
        return -1;
    }

    PtFlush();

    oglflags=flags;
    oglbpp=bpp;

    return 0;
}

#endif /* _NTO_VERSION */

#endif /* SDL_VIDEO_OPENGL */