diff options
Diffstat (limited to 'distrib/sdl-1.2.15/src/video/ps2gs/SDL_gsvideo.c')
-rw-r--r-- | distrib/sdl-1.2.15/src/video/ps2gs/SDL_gsvideo.c | 689 |
1 files changed, 689 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/video/ps2gs/SDL_gsvideo.c b/distrib/sdl-1.2.15/src/video/ps2gs/SDL_gsvideo.c new file mode 100644 index 0000000..e172c60 --- /dev/null +++ b/distrib/sdl-1.2.15/src/video/ps2gs/SDL_gsvideo.c @@ -0,0 +1,689 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2012 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" + +/* Framebuffer console based SDL video driver implementation. +*/ + +#include <fcntl.h> +#include <unistd.h> +#include <sys/ioctl.h> +#include <sys/mman.h> + +#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_cursor_c.h" +#include "SDL_gsvideo.h" +#include "SDL_gsmouse_c.h" +#include "SDL_gsevents_c.h" +#include "SDL_gsyuv_c.h" + + +/* Initialization/Query functions */ +static int GS_VideoInit(_THIS, SDL_PixelFormat *vformat); +static SDL_Rect **GS_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); +static SDL_Surface *GS_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); +static int GS_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); +static void GS_VideoQuit(_THIS); + +/* Hardware surface functions */ +static int GS_AllocHWSurface(_THIS, SDL_Surface *surface); +static int GS_LockHWSurface(_THIS, SDL_Surface *surface); +static void GS_UnlockHWSurface(_THIS, SDL_Surface *surface); +static void GS_FreeHWSurface(_THIS, SDL_Surface *surface); + +/* GS driver bootstrap functions */ + +static int GS_Available(void) +{ + int console, memory; + + console = open(PS2_DEV_GS, O_RDWR, 0); + if ( console >= 0 ) { + close(console); + } + memory = open(PS2_DEV_MEM, O_RDWR, 0); + if ( memory >= 0 ) { + close(memory); + } + return((console >= 0) && (memory >= 0)); +} + +static void GS_DeleteDevice(SDL_VideoDevice *device) +{ + SDL_free(device->hidden); + SDL_free(device); +} + +static SDL_VideoDevice *GS_CreateDevice(int devindex) +{ + SDL_VideoDevice *this; + + /* Initialize all variables that we clean on shutdown */ + this = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); + if ( this ) { + SDL_memset(this, 0, (sizeof *this)); + this->hidden = (struct SDL_PrivateVideoData *) + SDL_malloc((sizeof *this->hidden)); + } + if ( (this == NULL) || (this->hidden == NULL) ) { + SDL_OutOfMemory(); + if ( this ) { + SDL_free(this); + } + return(0); + } + SDL_memset(this->hidden, 0, (sizeof *this->hidden)); + mouse_fd = -1; + keyboard_fd = -1; + + /* Set the function pointers */ + this->VideoInit = GS_VideoInit; + this->ListModes = GS_ListModes; + this->SetVideoMode = GS_SetVideoMode; + this->CreateYUVOverlay = GS_CreateYUVOverlay; + this->SetColors = GS_SetColors; + this->UpdateRects = NULL; + this->VideoQuit = GS_VideoQuit; + this->AllocHWSurface = GS_AllocHWSurface; + this->CheckHWBlit = NULL; + this->FillHWRect = NULL; + this->SetHWColorKey = NULL; + this->SetHWAlpha = NULL; + this->LockHWSurface = GS_LockHWSurface; + this->UnlockHWSurface = GS_UnlockHWSurface; + this->FlipHWSurface = NULL; + this->FreeHWSurface = GS_FreeHWSurface; + this->SetIcon = NULL; + this->SetCaption = NULL; + this->GetWMInfo = NULL; + this->FreeWMCursor = GS_FreeWMCursor; + this->CreateWMCursor = GS_CreateWMCursor; + this->ShowWMCursor = GS_ShowWMCursor; + this->MoveWMCursor = GS_MoveWMCursor; + this->InitOSKeymap = GS_InitOSKeymap; + this->PumpEvents = GS_PumpEvents; + + this->free = GS_DeleteDevice; + + return this; +} + +VideoBootStrap PS2GS_bootstrap = { + "ps2gs", "PlayStation 2 Graphics Synthesizer", + GS_Available, GS_CreateDevice +}; + +/* These are the pixel formats for the 32, 24, and 16 bit video modes */ +static struct { + int bpp; + Uint32 r; + Uint32 g; + Uint32 b; +} GS_pixelmasks[] = { + { 32, 0x000000FF, /* RGB little-endian */ + 0x0000FF00, + 0x00FF0000 }, + { 24, 0x000000FF, /* RGB little-endian */ + 0x0000FF00, + 0x00FF0000 }, + { 16, 0x0000001f, /* RGB little-endian */ + 0x000003e0, + 0x00007c00 }, +}; +/* This is a mapping from SDL bytes-per-pixel to GS pixel format */ +static int GS_formatmap[] = { + -1, /* 0 bpp, not a legal value */ + -1, /* 8 bpp, not supported (yet?) */ + PS2_GS_PSMCT16, /* 16 bpp */ + PS2_GS_PSMCT24, /* 24 bpp */ + PS2_GS_PSMCT32 /* 32 bpp */ +}; + +static unsigned long long head_tags[] __attribute__((aligned(16))) = { + 4 | (1LL << 60), /* GIFtag */ + 0x0e, /* A+D */ + 0, /* 2 */ + PS2_GS_BITBLTBUF, + 0, /* 4 */ + PS2_GS_TRXPOS, + 0, /* 6 */ + PS2_GS_TRXREG, + 0, /* 8 */ + PS2_GS_TRXDIR +}; + +#define MAXIMG (32767 * 16) +#define MAXTAGS 8 + +static inline int loadimage_nonblock(int fd, struct ps2_image *image, int size, + unsigned long long *hm, + unsigned long long *im) +{ + struct ps2_plist plist; + struct ps2_packet packet[1 + MAXTAGS * 2]; + int isize; + int pnum, it, eop; + char *data; + + /* initialize the variables */ + data = (char *)image->ptr; + pnum = it = eop = 0; + plist.packet = packet; + + /* make BITBLT packet */ + packet[pnum].ptr = hm; + packet[pnum].len = sizeof(head_tags); + pnum++; + hm[2] = ((unsigned long long)image->fbp << 32) | + ((unsigned long long)image->fbw << 48) | + ((unsigned long long)image->psm << 56); + hm[4] = ((unsigned long long)image->x << 32) | + ((unsigned long long)image->y << 48); + hm[6] = (unsigned long long)image->w | + ((unsigned long long)image->h << 32); + + /* make image mode tags */ + while (!eop) { + isize = size > MAXIMG ? MAXIMG : size; + size -= isize; + eop = (size == 0); + + packet[pnum].ptr = &im[it]; + packet[pnum].len = sizeof(unsigned long long) * 2; + pnum++; + im[it++] = (isize >> 4) | (eop ? (1 << 15) : 0) | (2LL << 58); + im[it++] = 0; + + packet[pnum].ptr = (void *)data; + packet[pnum].len = isize; + pnum++; + data += isize; + } + plist.num = pnum; + + return ioctl(fd, PS2IOC_SENDL, &plist); +} + +static unsigned long long tex_tags[] __attribute__((aligned(16))) = { + 3 | (1LL << 60), /* GIFtag */ + 0x0e, /* A+D */ + 0, /* 2 */ + PS2_GS_TEX0_1, + (1 << 5) + (1 << 6), + PS2_GS_TEX1_1, + 0, + PS2_GS_TEXFLUSH +}; +static unsigned long long scale_tags[] __attribute__((aligned(16))) = { + 5 | (1LL << 60), /* GIFtag */ + 0x0e, /* A+D */ + 6 + (1 << 4) + (1 << 8), + PS2_GS_PRIM, + ((unsigned long long)0 * 16) + (((unsigned long long)0 * 16) << 16), + PS2_GS_UV, + ((unsigned long long)0 * 16) + (((unsigned long long)0 * 16) << 16), + PS2_GS_XYZ2, + 0, /* 8 */ + PS2_GS_UV, + 0, /* 10 */ + PS2_GS_XYZ2 +}; + + +int scaleimage_nonblock(int fd, unsigned long long *tm, unsigned long long *sm) +{ + struct ps2_plist plist; + struct ps2_packet packet[2]; + + /* initialize the variables */ + plist.num = 2; + plist.packet = packet; + + packet[0].ptr = tm; + packet[0].len = sizeof(tex_tags); + packet[1].ptr = sm; + packet[1].len = sizeof(scale_tags); + + return ioctl(fd, PS2IOC_SENDL, &plist); +} + +static int power_of_2(int value) +{ + int shift; + + for ( shift = 0; (1<<shift) < value; ++shift ) { + /* Keep looking */ ; + } + return(shift); +} + +static int GS_VideoInit(_THIS, SDL_PixelFormat *vformat) +{ + struct ps2_screeninfo vinfo; + + /* Initialize the library */ + console_fd = open(PS2_DEV_GS, O_RDWR, 0); + if ( console_fd < 0 ) { + SDL_SetError("Unable to open %s", PS2_DEV_GS); + return(-1); + } + memory_fd = open(PS2_DEV_MEM, O_RDWR, 0); + if ( memory_fd < 0 ) { + close(console_fd); + console_fd = -1; + SDL_SetError("Unable to open %s", PS2_DEV_MEM); + return(-1); + } + + if ( ioctl(console_fd, PS2IOC_GSCREENINFO, &vinfo) < 0 ) { + close(memory_fd); + close(console_fd); + console_fd = -1; + SDL_SetError("Couldn't get console pixel format"); + return(-1); + } + + /* Determine the current screen size */ + this->info.current_w = vinfo.w; + this->info.current_h = vinfo.h; + + /* Determine the current screen depth */ + switch (vinfo.psm) { + /* Supported pixel formats */ + case PS2_GS_PSMCT32: + case PS2_GS_PSMCT24: + case PS2_GS_PSMCT16: + break; + default: + GS_VideoQuit(this); + SDL_SetError("Unknown console pixel format: %d", vinfo.psm); + return(-1); + } + vformat->BitsPerPixel = GS_pixelmasks[vinfo.psm].bpp; + vformat->Rmask = GS_pixelmasks[vinfo.psm].r; + vformat->Gmask = GS_pixelmasks[vinfo.psm].g; + vformat->Bmask = GS_pixelmasks[vinfo.psm].b; + saved_vinfo = vinfo; + + /* Enable mouse and keyboard support */ + if ( GS_OpenKeyboard(this) < 0 ) { + GS_VideoQuit(this); + SDL_SetError("Unable to open keyboard"); + return(-1); + } + if ( GS_OpenMouse(this) < 0 ) { + const char *sdl_nomouse; + + sdl_nomouse = SDL_getenv("SDL_NOMOUSE"); + if ( ! sdl_nomouse ) { + GS_VideoQuit(this); + SDL_SetError("Unable to open mouse"); + return(-1); + } + } + + /* We're done! */ + return(0); +} + +static SDL_Rect **GS_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) +{ + static SDL_Rect GS_vesa_mode_list[] = { + { 0, 0, 1280, 1024 }, + { 0, 0, 1024, 768 }, + { 0, 0, 800, 600 }, + { 0, 0, 640, 480 } + }; + static SDL_Rect *GS_vesa_modes[] = { + &GS_vesa_mode_list[0], + &GS_vesa_mode_list[1], + &GS_vesa_mode_list[2], + &GS_vesa_mode_list[3], + NULL + }; + static SDL_Rect GS_tvout_stretch; + static SDL_Rect GS_tvout_mode; + static SDL_Rect *GS_tvout_modes[3]; + SDL_Rect **modes = NULL; + + switch (format->BitsPerPixel) { + case 16: + case 24: + case 32: + if ( saved_vinfo.mode == PS2_GS_VESA ) { + modes = GS_vesa_modes; + } else { + int i, j = 0; + +// FIXME - what's wrong with the stretch code at 16 bpp? +if ( format->BitsPerPixel != 32 ) break; + /* Add a mode that we could possibly stretch to */ + for ( i=0; GS_vesa_modes[i]; ++i ) { + if ( (GS_vesa_modes[i]->w == saved_vinfo.w) && + (GS_vesa_modes[i]->h != saved_vinfo.h) ) { + GS_tvout_stretch.w=GS_vesa_modes[i]->w; + GS_tvout_stretch.h=GS_vesa_modes[i]->h; + GS_tvout_modes[j++] = &GS_tvout_stretch; + break; + } + } + /* Add the current TV video mode */ + GS_tvout_mode.w = saved_vinfo.w; + GS_tvout_mode.h = saved_vinfo.h; + GS_tvout_modes[j++] = &GS_tvout_mode; + GS_tvout_modes[j++] = NULL; + + /* Return the created list of modes */ + modes = GS_tvout_modes; + } + break; + default: + break; + } + return(modes); +} + +/* Various screen update functions available */ +static void GS_DMAFullUpdate(_THIS, int numrects, SDL_Rect *rects); + +static SDL_Surface *GS_SetVideoMode(_THIS, SDL_Surface *current, + int width, int height, int bpp, Uint32 flags) +{ + struct ps2_screeninfo vinfo; + + /* Set the terminal into graphics mode */ + if ( GS_EnterGraphicsMode(this) < 0 ) { + return(NULL); + } + + /* Set the video mode and get the final screen format */ + if ( ioctl(console_fd, PS2IOC_GSCREENINFO, &vinfo) < 0 ) { + SDL_SetError("Couldn't get console screen info"); + return(NULL); + } + if ( (vinfo.w != width) || (vinfo.h != height) || + (GS_pixelmasks[vinfo.psm].bpp != bpp) ) { + /* If we're not in VESA mode, we have to scale resolution */ + if ( saved_vinfo.mode == PS2_GS_VESA ) { + switch (width) { + case 640: + vinfo.res = PS2_GS_640x480; + break; + case 800: + vinfo.res = PS2_GS_800x600; + break; + case 1024: + vinfo.res = PS2_GS_1024x768; + break; + case 1280: + vinfo.res = PS2_GS_1280x1024; + break; + default: + SDL_SetError("Unsupported resolution: %dx%d\n", + width, height); + return(NULL); + } + vinfo.res |= (PS2_GS_75Hz << 8); + vinfo.w = width; + vinfo.h = height; + } + vinfo.fbp = 0; + vinfo.psm = GS_formatmap[bpp/8]; + if ( vinfo.psm < 0 ) { + SDL_SetError("Unsupported depth: %d bpp\n", bpp); + return(NULL); + } + if ( ioctl(console_fd, PS2IOC_SSCREENINFO, &vinfo) < 0 ) { + SDL_SetError("Couldn't set console screen info"); + return(NULL); + } + + /* Unmap the previous DMA buffer */ + if ( mapped_mem ) { + munmap(mapped_mem, mapped_len); + mapped_mem = NULL; + } + } + if ( ! SDL_ReallocFormat(current, GS_pixelmasks[vinfo.psm].bpp, + GS_pixelmasks[vinfo.psm].r, + GS_pixelmasks[vinfo.psm].g, + GS_pixelmasks[vinfo.psm].b, 0) ) { + return(NULL); + } + + /* Set up the new mode framebuffer */ + current->flags = SDL_FULLSCREEN; + current->w = width; + current->h = height; + current->pitch = SDL_CalculatePitch(current); + + /* Memory map the DMA area for block memory transfer */ + if ( ! mapped_mem ) { + pixels_len = height * current->pitch; + mapped_len = pixels_len + + /* Screen update DMA command area */ + sizeof(head_tags) + ((2 * MAXTAGS) * 16); + if ( saved_vinfo.mode != PS2_GS_VESA ) { + mapped_len += sizeof(tex_tags) + sizeof(scale_tags); + } + mapped_mem = mmap(0, mapped_len, PROT_READ|PROT_WRITE, + MAP_SHARED, memory_fd, 0); + if ( mapped_mem == MAP_FAILED ) { + SDL_SetError("Unable to map %d bytes for DMA", + mapped_len); + mapped_mem = NULL; + return(NULL); + } + + /* Set up the entire screen for DMA transfer */ + screen_image.ptr = mapped_mem; + screen_image.fbp = 0; + screen_image.fbw = (vinfo.w + 63) / 64; + screen_image.psm = vinfo.psm; + screen_image.x = 0; + if ( vinfo.h == height ) { + screen_image.y = 0; + } else { + /* Put image offscreen and scale to screen height */ + screen_image.y = vinfo.h; + } + screen_image.w = current->w; + screen_image.h = current->h; + + /* get screen image data size (qword aligned) */ + screen_image_size = (screen_image.w * screen_image.h); + switch (screen_image.psm) { + case PS2_GS_PSMCT32: + screen_image_size *= 4; + break; + case PS2_GS_PSMCT24: + screen_image_size *= 3; + break; + case PS2_GS_PSMCT16: + screen_image_size *= 2; + break; + } + screen_image_size = (screen_image_size + 15) & ~15; + + /* Set up the memory for screen update DMA commands */ + head_tags_mem = (unsigned long long *) + (mapped_mem + pixels_len); + image_tags_mem = (unsigned long long *) + ((caddr_t)head_tags_mem + sizeof(head_tags)); + SDL_memcpy(head_tags_mem, head_tags, sizeof(head_tags)); + if ( saved_vinfo.mode != PS2_GS_VESA ) { + tex_tags_mem = (unsigned long long *) + ((caddr_t)image_tags_mem + ((2*MAXTAGS)*16)); + scale_tags_mem = (unsigned long long *) + ((caddr_t)tex_tags_mem + sizeof(tex_tags)); + SDL_memcpy(tex_tags_mem, tex_tags, sizeof(tex_tags)); + tex_tags_mem[2] = + (vinfo.h * vinfo.w) / 64 + + ((unsigned long long)screen_image.fbw << 14) + + ((unsigned long long)screen_image.psm << 20) + + ((unsigned long long)power_of_2(screen_image.w) << 26) + + ((unsigned long long)power_of_2(screen_image.h) << 30) + + ((unsigned long long)1 << 34) + + ((unsigned long long)1 << 35); + SDL_memcpy(scale_tags_mem, scale_tags, sizeof(scale_tags)); + scale_tags_mem[8] = + ((unsigned long long)screen_image.w * 16) + + (((unsigned long long)screen_image.h * 16) << 16); + scale_tags_mem[10] = + ((unsigned long long)vinfo.w * 16) + + (((unsigned long long)vinfo.h * 16) << 16); + } + } + current->pixels = NULL; + if ( SDL_getenv("SDL_FULLSCREEN_UPDATE") ) { + /* Correct semantics */ + current->flags |= SDL_ASYNCBLIT; + } else { + /* We lie here - the screen memory isn't really the visible + display memory and still requires an update, but this + has the desired effect for most applications. + */ + current->flags |= SDL_HWSURFACE; + } + + /* Set the update rectangle function */ + this->UpdateRects = GS_DMAFullUpdate; + + /* We're done */ + return(current); +} + +/* We don't support hardware surfaces yet */ +static int GS_AllocHWSurface(_THIS, SDL_Surface *surface) +{ + return(-1); +} +static void GS_FreeHWSurface(_THIS, SDL_Surface *surface) +{ + return; +} +static int GS_LockHWSurface(_THIS, SDL_Surface *surface) +{ + if ( surface == this->screen ) { + /* Since mouse motion affects 'pixels', lock it */ + SDL_LockCursor(); + + /* Make sure any pending DMA has completed */ + if ( dma_pending ) { + ioctl(console_fd, PS2IOC_SENDQCT, 1); + dma_pending = 0; + } + + /* If the cursor is drawn on the DMA area, remove it */ + if ( cursor_drawn ) { + surface->pixels = mapped_mem + surface->offset; + SDL_EraseCursorNoLock(this->screen); + cursor_drawn = 0; + } + + /* Set the surface pixels to the base of the DMA area */ + surface->pixels = mapped_mem; + + /* We're finished! */ + SDL_UnlockCursor(); + } + return(0); +} +static void GS_UnlockHWSurface(_THIS, SDL_Surface *surface) +{ + if ( surface == this->screen ) { + /* Since mouse motion affects 'pixels', lock it */ + SDL_LockCursor(); + surface->pixels = NULL; + SDL_UnlockCursor(); + } +} + +static void GS_DMAFullUpdate(_THIS, int numrects, SDL_Rect *rects) +{ + /* Lock so we aren't interrupted by a mouse update */ + SDL_LockCursor(); + + /* Make sure any pending DMA has completed */ + if ( dma_pending ) { + ioctl(console_fd, PS2IOC_SENDQCT, 1); + dma_pending = 0; + } + + /* If the mouse is visible, draw it on the DMA area */ + if ( (SDL_cursorstate & CURSOR_VISIBLE) && !cursor_drawn ) { + this->screen->pixels = mapped_mem + this->screen->offset; + SDL_DrawCursorNoLock(this->screen); + this->screen->pixels = NULL; + cursor_drawn = 1; + } + + /* Put the image onto the screen */ + loadimage_nonblock(console_fd, + &screen_image, screen_image_size, + head_tags_mem, image_tags_mem); + if ( screen_image.y > 0 ) { + /* Need to scale offscreen image to TV output */ + ioctl(console_fd, PS2IOC_SENDQCT, 1); + dma_pending = 0; + scaleimage_nonblock(console_fd, tex_tags_mem, scale_tags_mem); + } else { + dma_pending = 1; + } + + /* We're finished! */ + SDL_UnlockCursor(); +} + +static int GS_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) +{ + return(0); +} + +static void GS_VideoQuit(_THIS) +{ + /* Close console and input file descriptors */ + if ( console_fd > 0 ) { + /* Unmap the video framebuffer */ + if ( mapped_mem ) { + /* Unmap the video framebuffer */ + munmap(mapped_mem, mapped_len); + mapped_mem = NULL; + } + close(memory_fd); + + /* Restore the original video mode */ + if ( GS_InGraphicsMode(this) ) { + ioctl(console_fd, PS2IOC_SSCREENINFO, &saved_vinfo); + } + + /* We're all done with the graphics device */ + close(console_fd); + console_fd = -1; + } + GS_CloseMouse(this); + GS_CloseKeyboard(this); +} |