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Date: Thu, 05 Feb 2009 18:07:35 +0100 From: Stefan Klug Subject: [SDL] SDL 1.3 WinCE backend as promised, I've started to work on the WinCE backend of SDL 1.3 I've modified the win32 video backend and the gdi renderer, to work properly in WinCE. The results till now are great, but there is still some work to do. Attached are two patches with my changes. I would be happy if someone could review and propably commit them. The first one (configure.in.patch) should be straight forward without any side effects. The second one does the necessary changes to the win32 backend. I was really unhappy to start slicing this shiny new backend with #ifdef/#endif but I saw no other option. The most problematic issues are: - WinCe has no GetDIBits, so its practically impossible to fill a BITMAPINFO with correct values. I therefore removed the bmi member from the GDI_RenderData in SDL_gdirender.c to prevent usage of a not or not properly initialized bmi. - In SDL_win32window.c I exchanged some ASCII function by their general counterparts, (In CE only the Unicode versions are available). I don't know if this has a negative effect when running in win32 Cheers Stefan
author Sam Lantinga <slouken@libsdl.org>
date Mon, 23 Mar 2009 05:35:21 +0000
parents cad1aefa2ed9
children 82e60908fab1
line wrap: on
line source

/*
    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)
*/

#include "SDL_config.h"

#include "../SDL_pixels_c.h"
#include "../SDL_yuv_sw_c.h"

#include "SDL_video.h"

#include "SDL_gf_render.h"
#include "SDL_qnxgf.h"

static SDL_Renderer* gf_createrenderer(SDL_Window* window, Uint32 flags);
static int gf_displaymodechanged(SDL_Renderer* renderer);
static int gf_activaterenderer(SDL_Renderer* renderer);
static int gf_createtexture(SDL_Renderer* renderer, SDL_Texture* texture);
static int gf_querytexturepixels(SDL_Renderer* renderer, SDL_Texture* texture, void** pixels, int* pitch);
static int gf_settexturepalette(SDL_Renderer* renderer, SDL_Texture* texture, const SDL_Color* colors, int firstcolor, int ncolors);
static int gf_gettexturepalette(SDL_Renderer* renderer, SDL_Texture* texture, SDL_Color* colors, int firstcolor, int ncolors);
static int gf_settexturecolormod(SDL_Renderer* renderer, SDL_Texture* texture);
static int gf_settexturealphamod(SDL_Renderer* renderer, SDL_Texture* texture);
static int gf_settextureblendmode(SDL_Renderer* renderer, SDL_Texture* texture);
static int gf_settexturescalemode(SDL_Renderer* renderer, SDL_Texture* texture);
static int gf_updatetexture(SDL_Renderer* renderer, SDL_Texture* texture, const SDL_Rect* rect, const void* pixels, int pitch);
static int gf_locktexture(SDL_Renderer* renderer, SDL_Texture* texture, const SDL_Rect* rect, int markDirty, void** pixels, int* pitch);
static void gf_unlocktexture(SDL_Renderer* renderer, SDL_Texture* texture);
static void gf_dirtytexture(SDL_Renderer* renderer, SDL_Texture* texture, int numrects, const SDL_Rect* rects);
static int gf_renderpoint(SDL_Renderer* renderer, int x, int y);
static int gf_renderline(SDL_Renderer* renderer, int x1, int y1, int x2, int y2);
static int gf_renderfill(SDL_Renderer* renderer, const SDL_Rect* rect);
static int gf_rendercopy(SDL_Renderer* renderer, SDL_Texture* texture, const SDL_Rect* srcrect, const SDL_Rect* dstrect);
static void gf_renderpresent(SDL_Renderer* renderer);
static void gf_destroytexture(SDL_Renderer* renderer, SDL_Texture* texture);
static void gf_destroyrenderer(SDL_Renderer* renderer);

SDL_RenderDriver gf_renderdriver=
{
    gf_createrenderer,
    {
       "qnxgf",
       (SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTCOPY |
        SDL_RENDERER_PRESENTFLIP2 | SDL_RENDERER_PRESENTFLIP3 |
        SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_PRESENTDISCARD |
        SDL_RENDERER_ACCELERATED),
       (SDL_TEXTUREMODULATE_NONE | SDL_TEXTUREMODULATE_COLOR |
        SDL_TEXTUREMODULATE_ALPHA),
       (SDL_BLENDMODE_NONE | SDL_BLENDMODE_MASK |
        SDL_BLENDMODE_BLEND | SDL_BLENDMODE_ADD | SDL_BLENDMODE_MOD),
       (SDL_TEXTURESCALEMODE_NONE | SDL_TEXTURESCALEMODE_SLOW),
       13,
       {
          SDL_PIXELFORMAT_INDEX8,
          SDL_PIXELFORMAT_RGB555,
          SDL_PIXELFORMAT_RGB565,
          SDL_PIXELFORMAT_RGB888,
          SDL_PIXELFORMAT_BGR888,
          SDL_PIXELFORMAT_ARGB8888,
          SDL_PIXELFORMAT_RGBA8888,
          SDL_PIXELFORMAT_ABGR8888,
          SDL_PIXELFORMAT_BGRA8888,
          SDL_PIXELFORMAT_YV12,
          SDL_PIXELFORMAT_YUY2,
          SDL_PIXELFORMAT_UYVY,
          SDL_PIXELFORMAT_YVYU
       },
       0,
       0
    }
};

static SDL_Renderer* gf_createrenderer(SDL_Window* window, Uint32 flags)
{
   SDL_VideoDisplay* display = SDL_GetDisplayFromWindow(window);
   SDL_DisplayData* didata = (SDL_DisplayData*)display->driverdata;
   SDL_WindowData* wdata = (SDL_WindowData*)window->driverdata;
   SDL_Renderer* renderer = NULL;
   SDL_RenderData* rdata = NULL;
   uint32_t it;
   int32_t  jt;
   int32_t  status;

   /* Allocate new renderer structure */
   renderer=(SDL_Renderer*)SDL_calloc(1, sizeof(SDL_Renderer));
   if (renderer==NULL)
   {
      SDL_OutOfMemory();
      return NULL;
   }

   /* Allocate renderer data */
   rdata=(SDL_RenderData*)SDL_calloc(1, sizeof(SDL_RenderData));
   if (rdata==NULL)
   {
      SDL_free(renderer);
      SDL_OutOfMemory();
      return NULL;
   }

   renderer->DisplayModeChanged=gf_displaymodechanged;
   renderer->ActivateRenderer=gf_activaterenderer;
   renderer->CreateTexture=gf_createtexture;
   renderer->QueryTexturePixels=gf_querytexturepixels;
   renderer->SetTexturePalette=gf_settexturepalette;
   renderer->GetTexturePalette=gf_gettexturepalette;
   renderer->SetTextureAlphaMod=gf_settexturealphamod;
   renderer->SetTextureColorMod=gf_settexturecolormod;
   renderer->SetTextureBlendMode=gf_settextureblendmode;
   renderer->SetTextureScaleMode=gf_settexturescalemode;
   renderer->UpdateTexture=gf_updatetexture;
   renderer->LockTexture=gf_locktexture;
   renderer->UnlockTexture=gf_unlocktexture;
   renderer->DirtyTexture=gf_dirtytexture;
   renderer->RenderPoint=gf_renderpoint;
   renderer->RenderLine=gf_renderline;
   renderer->RenderFill=gf_renderfill;
   renderer->RenderCopy=gf_rendercopy;
   renderer->RenderPresent = gf_renderpresent;
   renderer->DestroyTexture = gf_destroytexture;
   renderer->DestroyRenderer = gf_destroyrenderer;
   renderer->info = gf_renderdriver.info;
   renderer->window = window->id;
   renderer->driverdata = rdata;

   /* Set render acceleration flag in case it is accelerated */
   if ((didata->caps & SDL_GF_ACCELERATED)==SDL_GF_ACCELERATED)
   {
      renderer->info.flags=SDL_RENDERER_ACCELERATED;
   }
   else
   {
      renderer->info.flags&=~(SDL_RENDERER_ACCELERATED);
   }

   rdata->window=window;

   /* Check if upper level requested synchronization on vsync signal */
   if ((flags & SDL_RENDERER_PRESENTVSYNC)==SDL_RENDERER_PRESENTVSYNC)
   {
       rdata->enable_vsync=SDL_TRUE;
   }
   else
   {
      rdata->enable_vsync=SDL_FALSE;
   }

   /* Check what buffer copy/flip scheme is requested */
   rdata->surfaces_count=0;
   if ((flags & SDL_RENDERER_SINGLEBUFFER)==SDL_RENDERER_SINGLEBUFFER)
   {
      if ((flags & SDL_RENDERER_PRESENTDISCARD)==SDL_RENDERER_PRESENTDISCARD)
      {
         renderer->info.flags|=SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTDISCARD;
      }
      else
      {
         renderer->info.flags|=SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTCOPY;
      }
      rdata->surfaces_count=1;
      rdata->surface_visible_idx=0;
      rdata->surface_render_idx=0;
   }
   else
   {
      if ((flags & SDL_RENDERER_PRESENTFLIP2)==SDL_RENDERER_PRESENTFLIP2)
      {
         renderer->info.flags|=SDL_RENDERER_PRESENTFLIP2;
         rdata->surfaces_count=2;
         rdata->surface_visible_idx=0;
         rdata->surface_render_idx=1;
      }
      else
      {
         if ((flags & SDL_RENDERER_PRESENTFLIP3)==SDL_RENDERER_PRESENTFLIP3)
         {
            renderer->info.flags|=SDL_RENDERER_PRESENTFLIP3;
            rdata->surfaces_count=3;
            rdata->surface_visible_idx=0;
            rdata->surface_render_idx=1;
         }
         else
         {
            renderer->info.flags|=SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTCOPY;
            rdata->surfaces_count=1;
            rdata->surface_visible_idx=0;
            rdata->surface_render_idx=0;
         }
      }
   }

   /* Create layer surfaces, which could be visible */
   for (it=0; it<rdata->surfaces_count; it++)
   {
      /* TODO: add palette creation */
      /*       do not waste surfaces when using GL ES */

      /* Create displayable surfaces */
      status=gf_surface_create_layer(&rdata->surface[it], &didata->layer, 1, 0,
             didata->current_mode.w, didata->current_mode.h,
             qnxgf_sdl_to_gf_pixelformat(didata->current_mode.format), NULL, 
             GF_SURFACE_CREATE_2D_ACCESSIBLE);

      if (status!=GF_ERR_OK)
      {
         /* Free already allocated surfaces */
         for (jt=it-1; jt>0; jt--)
         {
            gf_surface_free(rdata->surface[jt]);
         }
         SDL_free(rdata);
         SDL_free(renderer);
         if (status==GF_ERR_MEM)
         {
            SDL_SetError("unsufficient free video memory");
         }
         else
         {
            SDL_SetError("error during displayable surface creation");
         }
         return NULL;
      }

      /* Get detailed information about allocated surface */
      gf_surface_get_info(rdata->surface[it], &rdata->surface_info[it]);
   }

   return renderer;
}

void gf_addrenderdriver(_THIS)
{
   uint32_t it;

   for (it=0; it<_this->num_displays; it++)
   {
      SDL_AddRenderDriver(it, &gf_renderdriver);
   }
}

/****************************************************************************/
/* SDL render interface                                                     */
/****************************************************************************/
static int gf_displaymodechanged(SDL_Renderer* renderer)
{
   SDL_RenderData* rdata=(SDL_RenderData*)renderer->driverdata;

   /* Remove all allocated surfaces, they are no more valid */

   /* TODO: Add video mode change detection and new parameters detection */

   return 0;
}

static int gf_activaterenderer(SDL_Renderer* renderer)
{
   SDL_RenderData* rdata=(SDL_RenderData*)renderer->driverdata;
   SDL_VideoDisplay* display = SDL_GetDisplayFromWindow(rdata->window);
   SDL_DisplayData* didata = (SDL_DisplayData*)display->driverdata;

   /* Setup current surface as visible */
   gf_layer_set_surfaces(didata->layer, &rdata->surface[rdata->surface_visible_idx], 1);

   /* Set visible surface when hardware in idle state */
   gf_layer_update(didata->layer, GF_LAYER_UPDATE_NO_WAIT_IDLE);

   return 0;
}

static int gf_createtexture(SDL_Renderer* renderer, SDL_Texture* texture)
{
   SDL_RenderData* renderdata=(SDL_RenderData*)renderer->driverdata;
   SDL_Window* window=SDL_GetWindowFromID(renderer->window);
   SDL_VideoDisplay* display=SDL_GetDisplayFromWindow(window);
   SDL_TextureData* tdata=NULL;

   /* Allocate texture driver data */
   tdata=(SDL_TextureData*)SDL_calloc(1, sizeof(SDL_TextureData));
   if (tdata==NULL)
   {
      SDL_OutOfMemory();
      return -1;
   }

   /* Set texture driver data */
   texture->driverdata=tdata;

}

static int gf_querytexturepixels(SDL_Renderer* renderer, SDL_Texture* texture, void** pixels, int* pitch)
{
}

static int gf_settexturepalette(SDL_Renderer* renderer, SDL_Texture* texture, const SDL_Color* colors, int firstcolor, int ncolors)
{
}

static int gf_gettexturepalette(SDL_Renderer* renderer, SDL_Texture* texture, SDL_Color* colors, int firstcolor, int ncolors)
{
}

static int gf_settexturecolormod(SDL_Renderer* renderer, SDL_Texture* texture)
{
}

static int gf_settexturealphamod(SDL_Renderer* renderer, SDL_Texture* texture)
{
}

static int gf_settextureblendmode(SDL_Renderer* renderer, SDL_Texture* texture)
{
}

static int gf_settexturescalemode(SDL_Renderer* renderer, SDL_Texture* texture)
{
}

static int gf_updatetexture(SDL_Renderer* renderer, SDL_Texture* texture, const SDL_Rect* rect, const void* pixels, int pitch)
{
}

static int gf_locktexture(SDL_Renderer* renderer, SDL_Texture* texture, const SDL_Rect* rect, int markDirty, void** pixels, int* pitch)
{
}

static void gf_unlocktexture(SDL_Renderer* renderer, SDL_Texture* texture)
{
}

static void gf_dirtytexture(SDL_Renderer* renderer, SDL_Texture* texture, int numrects, const SDL_Rect* rects)
{
}

static int gf_renderpoint(SDL_Renderer* renderer, int x, int y)
{
}

static int gf_renderline(SDL_Renderer* renderer, int x1, int y1, int x2, int y2)
{
}

static int gf_renderfill(SDL_Renderer* renderer, const SDL_Rect* rect)
{
}

static int gf_rendercopy(SDL_Renderer* renderer, SDL_Texture* texture, const SDL_Rect* srcrect, const SDL_Rect* dstrect)
{
}

static void gf_renderpresent(SDL_Renderer* renderer)
{
}

static void gf_destroytexture(SDL_Renderer* renderer, SDL_Texture* texture)
{
}

static void gf_destroyrenderer(SDL_Renderer* renderer)
{
   SDL_RenderData* rdata=(SDL_RenderData*)renderer->driverdata;
   uint32_t it;

   for (it=0; it<rdata->surfaces_count; it++)
   {
      gf_surface_free(rdata->surface[it]);
   }
}

/* vi: set ts=4 sw=4 expandtab: */