diff options
Diffstat (limited to 'distrib/sdl-1.2.12/src/video/fbcon/SDL_fb3dfx.c')
| -rw-r--r-- | distrib/sdl-1.2.12/src/video/fbcon/SDL_fb3dfx.c | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/distrib/sdl-1.2.12/src/video/fbcon/SDL_fb3dfx.c b/distrib/sdl-1.2.12/src/video/fbcon/SDL_fb3dfx.c deleted file mode 100644 index 91df7ac..0000000 --- a/distrib/sdl-1.2.12/src/video/fbcon/SDL_fb3dfx.c +++ /dev/null @@ -1,217 +0,0 @@ -/* - SDL - Simple DirectMedia Layer - Copyright (C) 1997-2006 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 "SDL_video.h" -#include "../SDL_blit.h" -#include "SDL_fb3dfx.h" -#include "3dfx_mmio.h" - - -/* Wait for vertical retrace */ -static void WaitVBL(_THIS) -{ - /* find start of retrace */ - tdfx_waitidle(); - while( (tdfx_in32(TDFX_STATUS) & STATUS_RETRACE) == STATUS_RETRACE ) - ; - /* wait until we're past the start */ - while( (tdfx_in32(TDFX_STATUS) & STATUS_RETRACE) == 0 ) - ; -} -static void WaitIdle(_THIS) -{ - tdfx_waitidle(); -} - -/* Sets video mem colorkey and accelerated blit function */ -static int SetHWColorKey(_THIS, SDL_Surface *surface, Uint32 key) -{ - return(0); -} - -static int FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color) -{ - int bpp; - Uint32 dst_base; - Uint32 format; - int dstX, dstY; - - /* Don't blit to the display surface when switched away */ - if ( switched_away ) { - return -2; /* no hardware access */ - } - if ( dst == this->screen ) { - SDL_mutexP(hw_lock); - } - - /* Set the destination pixel format */ - dst_base = ((char *)dst->pixels - mapped_mem); - bpp = dst->format->BitsPerPixel; - format = dst->pitch | ((bpp+((bpp==8) ? 0 : 8)) << 13); - - /* Calculate source and destination base coordinates */ - dstX = rect->x; - dstY = rect->y; - - /* Execute the fill command */ - tdfx_wait(6); - tdfx_out32(DSTBASE, dst_base); - tdfx_out32(DSTFORMAT, format); - tdfx_out32(COLORFORE, color); - tdfx_out32(COMMAND_2D, COMMAND_2D_FILLRECT); - tdfx_out32(DSTSIZE, rect->w | (rect->h << 16)); - tdfx_out32(LAUNCH_2D, dstX | (dstY << 16)); - - FB_AddBusySurface(dst); - - if ( dst == this->screen ) { - SDL_mutexV(hw_lock); - } - return(0); -} - -static int HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, - SDL_Surface *dst, SDL_Rect *dstrect) -{ - SDL_VideoDevice *this = current_video; - int bpp; - Uint32 src_format; - Uint32 dst_format; - Uint32 src_base; - Uint32 dst_base; - int srcX, srcY; - int dstX, dstY; - Uint32 blitop; - Uint32 use_colorkey; - - /* Don't blit to the display surface when switched away */ - if ( switched_away ) { - return -2; /* no hardware access */ - } - if ( dst == this->screen ) { - SDL_mutexP(hw_lock); - } - - /* Set the source and destination pixel format */ - src_base = ((char *)src->pixels - mapped_mem); - bpp = src->format->BitsPerPixel; - src_format = src->pitch | ((bpp+((bpp==8) ? 0 : 8)) << 13); - dst_base = ((char *)dst->pixels - mapped_mem); - bpp = dst->format->BitsPerPixel; - dst_format = dst->pitch | ((bpp+((bpp==8) ? 0 : 8)) << 13); - - srcX = srcrect->x; - srcY = srcrect->y; - dstX = dstrect->x; - dstY = dstrect->y; - - /* Assemble the blit operation */ - blitop = COMMAND_2D_BITBLT | (0xCC << 24); - if ( srcX <= dstX ) { - blitop |= BIT(14); - srcX += (dstrect->w - 1); - dstX += (dstrect->w - 1); - } - if ( srcY <= dstY ) { - blitop |= BIT(15); - srcY += (dstrect->h - 1); - dstY += (dstrect->h - 1); - } - - /* Perform the blit! */ - if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { - tdfx_wait(3); - tdfx_out32(SRCCOLORKEYMIN, src->format->colorkey); - tdfx_out32(SRCCOLORKEYMAX, src->format->colorkey); - tdfx_out32(ROP_2D, 0xAA00); - use_colorkey = 1; - } else { - use_colorkey = 0; - } - tdfx_wait(9); - tdfx_out32(SRCBASE, (Uint32)src_base); - tdfx_out32(SRCFORMAT, src_format); - tdfx_out32(DSTBASE, (Uint32)dst_base); - tdfx_out32(DSTFORMAT, src_format); - tdfx_out32(COMMAND_2D, blitop); - tdfx_out32(COMMANDEXTRA_2D, use_colorkey); - tdfx_out32(DSTSIZE, dstrect->w | (dstrect->h << 16)); - tdfx_out32(DSTXY, dstX | (dstY << 16)); - tdfx_out32(LAUNCH_2D, srcX | (srcY << 16)); - - FB_AddBusySurface(src); - FB_AddBusySurface(dst); - - if ( dst == this->screen ) { - SDL_mutexV(hw_lock); - } - return(0); -} - -static int CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dst) -{ - int accelerated; - - /* Set initial acceleration on */ - src->flags |= SDL_HWACCEL; - - /* Set the surface attributes */ - if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { - if ( ! this->info.blit_hw_A ) { - src->flags &= ~SDL_HWACCEL; - } - } - if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { - if ( ! this->info.blit_hw_CC ) { - src->flags &= ~SDL_HWACCEL; - } - } - - /* Check to see if final surface blit is accelerated */ - accelerated = !!(src->flags & SDL_HWACCEL); - if ( accelerated ) { - src->map->hw_blit = HWAccelBlit; - } - return(accelerated); -} - -void FB_3DfxAccel(_THIS, __u32 card) -{ - /* We have hardware accelerated surface functions */ - this->CheckHWBlit = CheckHWBlit; - wait_vbl = WaitVBL; - wait_idle = WaitIdle; - - /* Reset the 3Dfx controller */ - tdfx_out32(BRESERROR0, 0); - tdfx_out32(BRESERROR1, 0); - - /* The 3Dfx has an accelerated color fill */ - this->info.blit_fill = 1; - this->FillHWRect = FillHWRect; - - /* The 3Dfx has accelerated normal and colorkey blits */ - this->info.blit_hw = 1; - this->info.blit_hw_CC = 1; - this->SetHWColorKey = SetHWColorKey; -} |