diff options
Diffstat (limited to 'distrib/sdl-1.2.12/src/video/riscos/SDL_wimpvideo.c')
| -rw-r--r-- | distrib/sdl-1.2.12/src/video/riscos/SDL_wimpvideo.c | 501 |
1 files changed, 0 insertions, 501 deletions
diff --git a/distrib/sdl-1.2.12/src/video/riscos/SDL_wimpvideo.c b/distrib/sdl-1.2.12/src/video/riscos/SDL_wimpvideo.c deleted file mode 100644 index 6286844..0000000 --- a/distrib/sdl-1.2.12/src/video/riscos/SDL_wimpvideo.c +++ /dev/null @@ -1,501 +0,0 @@ -/* - SDL - Simple DirectMedia Layer - Copyright (C) 1997-2004 Sam Lantinga - - 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 -*/ -#include "SDL_config.h" - -/* - File added by Alan Buckley (alan_baa@hotmail.com) for RISC OS compatability - 27 March 2003 - - Implements RISC OS Wimp display. -*/ - -#include "SDL_video.h" -#include "SDL_mouse.h" -#include "../SDL_sysvideo.h" -#include "../SDL_pixels_c.h" -#include "../../events/SDL_events_c.h" - -#include "SDL_riscostask.h" -#include "SDL_riscosvideo.h" -#include "SDL_riscosevents_c.h" -#include "SDL_riscosmouse_c.h" - -#include "kernel.h" -#include "swis.h" - -/* Initialization/Query functions */ -SDL_Rect **WIMP_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); -SDL_Surface *WIMP_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); -int WIMP_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); -void WIMP_SetWMCaption(_THIS, const char *title, const char *icon); - - -extern unsigned char *WIMP_CreateBuffer(int width, int height, int bpp); -extern void WIMP_PumpEvents(_THIS); -extern void WIMP_PlotSprite(_THIS, int x, int y); -extern void WIMP_SetupPlotInfo(_THIS); -extern void WIMP_SetFocus(int win); - -/* etc. */ -static void WIMP_UpdateRects(_THIS, int numrects, SDL_Rect *rects); - -/* RISC OS Wimp handling helpers */ -void WIMP_ReadModeInfo(_THIS); -unsigned int WIMP_SetupWindow(_THIS, SDL_Surface *surface); -void WIMP_SetDeviceMode(_THIS); -void WIMP_DeleteWindow(_THIS); - -/* FULLSCREEN function required for wimp/fullscreen toggling */ -extern int FULLSCREEN_SetMode(int width, int height, int bpp); - -/* Currently need to set this up here as it only works if you - start up in a Wimp mode */ -extern int RISCOS_ToggleFullScreen(_THIS, int fullscreen); - -extern int riscos_backbuffer; -extern int mouseInWindow; -extern int riscos_closeaction; - -/* Following needed to ensure window is shown immediately */ -extern int hasFocus; -extern void WIMP_Poll(_THIS, int waitTime); - -SDL_Surface *WIMP_SetVideoMode(_THIS, SDL_Surface *current, - int width, int height, int bpp, Uint32 flags) -{ - Uint32 Rmask = 0; - Uint32 Gmask = 0; - Uint32 Bmask = 0; - char *buffer = NULL; - int bytesPerPixel = 1; - - /* Don't support double buffering in Wimp mode */ - flags &= ~SDL_DOUBLEBUF; - flags &= ~SDL_HWSURFACE; - - switch(bpp) - { - case 8: - /* Emulated palette using ColourTrans */ - flags |= SDL_HWPALETTE; - break; - - case 15: - case 16: - Bmask = 0x00007c00; - Gmask = 0x000003e0; - Rmask = 0x0000001f; - bytesPerPixel = 2; - break; - - case 32: - Bmask = 0x00ff0000; - Gmask = 0x0000ff00; - Rmask = 0x000000ff; - bytesPerPixel = 4; - break; - - default: - SDL_SetError("Pixel depth not supported"); - return NULL; - break; - } - -/* printf("Setting mode %dx%d\n", width, height);*/ - - /* Allocate the new pixel format for the screen */ - if ( ! SDL_ReallocFormat(current, bpp, Rmask, Gmask, Bmask, 0) ) { - SDL_SetError("Couldn't allocate new pixel format for requested mode"); - return(NULL); - } - - /* Set up the new mode framebuffer */ - current->w = width; - this->hidden->height = current->h = height; - - if (bpp == 15) bpp = 16; - buffer = WIMP_CreateBuffer(width, height, bpp); - if (buffer == NULL) - { - SDL_SetError("Couldn't create sprite for video memory"); - return (NULL); - } - - this->hidden->bank[0] = buffer + 60; /* Start of sprite data */ - if (bpp == 8) this->hidden->bank[0] += 2048; /* 8bpp sprite have palette first */ - - this->hidden->bank[1] = buffer; /* Start of buffer */ - - /* Remember sprite buffer so it can be freed later */ - if (this->hidden->alloc_bank) SDL_free(this->hidden->alloc_bank); - this->hidden->alloc_bank = buffer; - - current->pitch = width * bytesPerPixel; - if ((current->pitch & 3)) - { - /* Sprites are 32bit word aligned */ - current->pitch += (4 - (current->pitch & 3)); - } - - current->flags = flags | SDL_PREALLOC; - - WIMP_ReadModeInfo(this); - - SDL_memset(this->hidden->bank[0], 0, height * current->pitch); - - this->hidden->current_bank = 0; - current->pixels = this->hidden->bank[0]; - - - if (WIMP_SetupWindow(this, current) == 0) - { - SDL_SetError("Unable to create window to display surface"); - return NULL; - } - - /* Reset device functions for the wimp */ - WIMP_SetDeviceMode(this); - - /* Needs to set up plot info after window has been created */ - /* Not sure why, but plots don't work if I do it earlier */ - WIMP_SetupPlotInfo(this); - - /* Poll until window is shown */ - { - /* We wait until it gets the focus, but give up after 5 seconds - in case the focus is prevented in any way. - */ - Uint32 now = SDL_GetTicks(); - while (!hasFocus && SDL_GetTicks() - now < 5000) - { - WIMP_Poll(this, 0); - } - } - - /* We're done */ - return(current); -} - - -void WIMP_ReadModeInfo(_THIS) -{ - _kernel_swi_regs regs; - int vars[6]; - int vals[5]; - - vars[0] = 4; /* XEig */ - vars[1] = 5; /* YEig */ - vars[2] = 9; /* Log base 2 bpp */ - vars[3] = 11; /* Screen Width - 1 */ - vars[4] = 12; /* Screen Depth - 1 */ - vars[5] = -1; /* Terminate list */ - - regs.r[0] = (int)vars; - regs.r[1] = (int)vals; - _kernel_swi(OS_ReadVduVariables, ®s, ®s); - this->hidden->xeig = vals[0]; - this->hidden->yeig = vals[1]; - this->hidden->screen_bpp = 1 << vals[2]; - this->hidden->screen_width = vals[3] + 1; - this->hidden->screen_height = vals[4] + 1; -} - -/* Set device function to call the correct versions for running - in a wimp window */ - -void WIMP_SetDeviceMode(_THIS) -{ - if (this->UpdateRects == WIMP_UpdateRects) return; /* Already set up */ - - this->SetColors = WIMP_SetColors; - this->UpdateRects = WIMP_UpdateRects; - - this->FlipHWSurface = NULL; - - this->SetCaption = WIMP_SetWMCaption; - this->SetIcon = NULL; - this->IconifyWindow = NULL; - - this->ShowWMCursor = WIMP_ShowWMCursor; - this->WarpWMCursor = WIMP_WarpWMCursor; - - this->ToggleFullScreen = RISCOS_ToggleFullScreen; - - this->PumpEvents = WIMP_PumpEvents; -} - -/* Setup the Window to display the surface */ -unsigned int WIMP_SetupWindow(_THIS, SDL_Surface *surface) -{ - _kernel_swi_regs regs; - int window_data[23]; - int *window_block = window_data+1; - int x = (this->hidden->screen_width - surface->w) / 2; - int y = (this->hidden->screen_height - surface->h) / 2; - int xeig = this->hidden->xeig; - int yeig = this->hidden->yeig; - - mouseInWindow = 0; - - /* Always delete the window and recreate on a change */ - if (this->hidden->window_handle) WIMP_DeleteWindow(this); - - /* Setup window co-ordinates */ - window_block[0] = x << xeig; - window_block[1] = y << yeig; - window_block[2] = window_block[0] + (surface->w << xeig); - window_block[3] = window_block[1] + (surface->h << yeig); - - - window_block[4] = 0; /* Scroll offsets */ - window_block[5] = 0; - window_block[6] = -1; /* Open on top of window stack */ - - window_block[7] = 0x85040042; /* Window flags */ - if (riscos_closeaction != 0) window_block[7] |= 0x2000000; - - /* TODO: Take into account surface->flags */ - - window_block[8] = 0xff070207; /* Window colours */ - window_block[9] = 0x000c0103; - window_block[10] = 0; /* Work area minimum */ - window_block[11] = -surface->h << yeig; - window_block[12] = surface->w << xeig; /* Work area maximum */ - window_block[13] = 0; - window_block[14] = 0x2700013d; /* Title icon flags */ - window_block[15] = 0x00003000; /* Work area flags - Mouse click down reported */ - window_block[16] = 1; /* Sprite area control block pointer */ - window_block[17] = 0x00100010; /* Minimum window size (width & height) (16x16)*/ - window_block[18] = (int)this->hidden->title; /* Title data */ - window_block[19] = -1; - window_block[20] = 256; - window_block[21] = 0; /* Number of icons */ - - regs.r[1] = (unsigned int)(window_block); - - /* Create the window */ - if (_kernel_swi(Wimp_CreateWindow, ®s, ®s) == NULL) - { - this->hidden->window_handle = window_data[0] = regs.r[0]; - - /* Show the window on the screen */ - regs.r[1] = (unsigned int)window_data; - if (_kernel_swi(Wimp_OpenWindow, ®s, ®s) == NULL) - { - WIMP_SetFocus(this->hidden->window_handle); - } else - { - WIMP_DeleteWindow(this); - } - } - - return this->hidden->window_handle; -} - -/* Destroy the Window */ - -void WIMP_DeleteWindow(_THIS) -{ - _kernel_swi_regs regs; - regs.r[1] = (unsigned int)&(this->hidden->window_handle); - _kernel_swi(Wimp_DeleteWindow, ®s, ®s); - this->hidden->window_handle = 0; -} - - -void WIMP_UpdateRects(_THIS, int numrects, SDL_Rect *rects) -{ - _kernel_swi_regs regs; - int update_block[12]; - int xeig = this->hidden->xeig; - int yeig = this->hidden->yeig; - int j; - update_block[0] = this->hidden->window_handle; - - for (j = 0; j < numrects; j++) - { - update_block[1] = rects[j].x << xeig; /* Min X */ - update_block[4] = -(rects[j].y << yeig); - update_block[3] = update_block[1] + (rects[j].w << xeig); - update_block[2] = update_block[4] - (rects[j].h << yeig); - - regs.r[1] = (int)update_block; - /* Update window can fail if called before first poll */ - if (_kernel_swi(Wimp_UpdateWindow, ®s, ®s) == 0) - { - while (regs.r[0]) - { - WIMP_PlotSprite(this, update_block[1], update_block[2]); - _kernel_swi(Wimp_GetRectangle, ®s, ®s); - } - } - } -} - - -int WIMP_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) -{ - unsigned int *pal = (unsigned int *)(this->hidden->bank[1]+60); - int j; - SDL_Rect update; - - pal += firstcolor*2; - for (j = 0; j < ncolors; j++) - { - *pal = (((unsigned int)colors->r) << 8) - + (((unsigned int)colors->g) << 16) - + (((unsigned int)colors->b) << 24); - pal[1] = *pal; - pal += 2; - colors++; - } - - WIMP_SetupPlotInfo(this); - - /* Need to refresh the window */ - update.x = 0; - update.y = 0; - update.w = SDL_VideoSurface->w; - update.h = SDL_VideoSurface->h; - WIMP_UpdateRects(this, 1, &update); - - return 1; -} - -void WIMP_SetWMCaption(_THIS, const char *title, const char *icon) -{ - _kernel_swi_regs regs; - - SDL_strlcpy(this->hidden->title, title, SDL_arraysize(this->hidden->title)); - - if (RISCOS_GetWimpVersion() < 380) - { - int block[6]; - - regs.r[1] = (int)block; - _kernel_swi(Wimp_GetCaretPosition, ®s, ®s); - if (block[0] == (int)this->hidden->window_handle) - { - regs.r[0] = -1; - _kernel_swi(Wimp_SetCaretPosition, ®s,®s); - } else - { - regs.r[0] = this->hidden->window_handle; - regs.r[1] = -1; - regs.r[2] = -1; - regs.r[3] = -1; - _kernel_swi(Wimp_SetCaretPosition, ®s,®s); - } - regs.r[0] = block[0]; - regs.r[1] = block[1]; - regs.r[2] = block[2]; - regs.r[3] = block[3]; - regs.r[4] = block[4]; - regs.r[5] = block[5]; - _kernel_swi(Wimp_SetCaretPosition, ®s,®s); - } else - { - regs.r[0] = this->hidden->window_handle; - regs.r[1] = 0x4b534154; /* "TASK" */ - regs.r[2] = 3; /* Redraw title */ - _kernel_swi(Wimp_ForceRedraw, ®s, ®s); - } -} - -void WIMP_RefreshDesktop(_THIS) -{ - int width = this->hidden->screen_width << this->hidden->xeig; - int height = this->hidden->screen_height << this->hidden->yeig; - _kernel_swi_regs regs; - regs.r[0] = -1; /* Whole screen */ - regs.r[1] = 0; - regs.r[2] = 0; - regs.r[3] = width; - regs.r[4] = height; - _kernel_swi(Wimp_ForceRedraw, ®s, ®s); -} - -/* Toggle to window from full screen */ -int WIMP_ToggleFromFullScreen(_THIS) -{ - int width = this->screen->w; - int height = this->screen->h; - int bpp = this->screen->format->BitsPerPixel; - char *buffer = NULL; - char *old_bank[2]; - char *old_alloc_bank; - - /* Ensure flags are OK */ - this->screen->flags &= ~(SDL_DOUBLEBUF|SDL_HWSURFACE); - - if (this->hidden->bank[0] == this->hidden->alloc_bank || riscos_backbuffer == 0) - { - /* Need to create a sprite for the screen and copy the data to it */ - char *data; - buffer = WIMP_CreateBuffer(width, height, bpp); - data = buffer + 60; /* Start of sprite data */ - if (bpp == 8) data += 2048; /* 8bpp sprite have palette first */ - - if (buffer == NULL) return 0; - SDL_memcpy(data, this->hidden->bank[0], width * height * this->screen->format->BytesPerPixel); - } - /* else We've switch to full screen before so we already have a sprite */ - - old_bank[0] = this->hidden->bank[0]; - old_bank[1] = this->hidden->bank[1]; - old_alloc_bank = this->hidden->alloc_bank; - - if (buffer != NULL) this->hidden->alloc_bank = buffer; - - this->hidden->bank[1] = this->hidden->alloc_bank; - this->hidden->bank[0] = this->hidden->bank[1] + 60; /* Start of sprite data */ - if (bpp == 8) this->hidden->bank[0] += 2048; /* 8bpp sprite have palette first */ - - this->hidden->current_bank = 0; - this->screen->pixels = this->hidden->bank[0]; - - RISCOS_RestoreWimpMode(); - WIMP_ReadModeInfo(this); - if (WIMP_SetupWindow(this, this->screen)) - { - WIMP_SetDeviceMode(this); - WIMP_SetupPlotInfo(this); - - if (riscos_backbuffer == 0) riscos_backbuffer = 1; - - if (buffer && old_alloc_bank) SDL_free(old_alloc_bank); - - return 1; - } else - { - /* Drop back to full screen mode on failure */ - this->hidden->bank[0] = old_bank[0]; - this->hidden->bank[1] = old_bank[1]; - this->hidden->alloc_bank = old_alloc_bank; - if (buffer) SDL_free(buffer); - - RISCOS_StoreWimpMode(); - FULLSCREEN_SetMode(width, height, bpp); - } - - return 0; -} |