| /* |
| 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" |
| |
| #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_dcvideo.h" |
| #include "SDL_dcevents_c.h" |
| #include "SDL_dcmouse_c.h" |
| |
| #include <dc/video.h> |
| #include <dc/pvr.h> |
| |
| |
| /* Initialization/Query functions */ |
| static int DC_VideoInit(_THIS, SDL_PixelFormat *vformat); |
| static SDL_Rect **DC_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); |
| static SDL_Surface *DC_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); |
| static int DC_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); |
| static void DC_VideoQuit(_THIS); |
| |
| /* Hardware surface functions */ |
| static int DC_AllocHWSurface(_THIS, SDL_Surface *surface); |
| static int DC_LockHWSurface(_THIS, SDL_Surface *surface); |
| static void DC_UnlockHWSurface(_THIS, SDL_Surface *surface); |
| static void DC_FreeHWSurface(_THIS, SDL_Surface *surface); |
| static int DC_FlipHWSurface(_THIS, SDL_Surface *surface); |
| |
| /* etc. */ |
| static void DC_UpdateRects(_THIS, int numrects, SDL_Rect *rects); |
| |
| /* OpenGL */ |
| #if SDL_VIDEO_OPENGL |
| static void *DC_GL_GetProcAddress(_THIS, const char *proc); |
| static int DC_GL_LoadLibrary(_THIS, const char *path); |
| static int DC_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value); |
| static void DC_GL_SwapBuffers(_THIS); |
| #endif |
| |
| /* DC driver bootstrap functions */ |
| |
| static int DC_Available(void) |
| { |
| return 1; |
| } |
| |
| static void DC_DeleteDevice(SDL_VideoDevice *device) |
| { |
| SDL_free(device->hidden); |
| SDL_free(device); |
| } |
| |
| static SDL_VideoDevice *DC_CreateDevice(int devindex) |
| { |
| SDL_VideoDevice *device; |
| |
| /* Initialize all variables that we clean on shutdown */ |
| device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); |
| if ( device ) { |
| SDL_memset(device, 0, (sizeof *device)); |
| device->hidden = (struct SDL_PrivateVideoData *) |
| SDL_malloc((sizeof *device->hidden)); |
| } |
| if ( (device == NULL) || (device->hidden == NULL) ) { |
| SDL_OutOfMemory(); |
| if ( device ) { |
| SDL_free(device); |
| } |
| return(0); |
| } |
| SDL_memset(device->hidden, 0, (sizeof *device->hidden)); |
| |
| /* Set the function pointers */ |
| device->VideoInit = DC_VideoInit; |
| device->ListModes = DC_ListModes; |
| device->SetVideoMode = DC_SetVideoMode; |
| device->CreateYUVOverlay = NULL; |
| device->SetColors = DC_SetColors; |
| device->UpdateRects = DC_UpdateRects; |
| device->VideoQuit = DC_VideoQuit; |
| device->AllocHWSurface = DC_AllocHWSurface; |
| device->CheckHWBlit = NULL; |
| device->FillHWRect = NULL; |
| device->SetHWColorKey = NULL; |
| device->SetHWAlpha = NULL; |
| device->LockHWSurface = DC_LockHWSurface; |
| device->UnlockHWSurface = DC_UnlockHWSurface; |
| device->FlipHWSurface = DC_FlipHWSurface; |
| device->FreeHWSurface = DC_FreeHWSurface; |
| #if SDL_VIDEO_OPENGL |
| device->GL_LoadLibrary = DC_GL_LoadLibrary; |
| device->GL_GetProcAddress = DC_GL_GetProcAddress; |
| device->GL_GetAttribute = DC_GL_GetAttribute; |
| device->GL_MakeCurrent = NULL; |
| device->GL_SwapBuffers = DC_GL_SwapBuffers; |
| #endif |
| device->SetCaption = NULL; |
| device->SetIcon = NULL; |
| device->IconifyWindow = NULL; |
| device->GrabInput = NULL; |
| device->GetWMInfo = NULL; |
| device->InitOSKeymap = DC_InitOSKeymap; |
| device->PumpEvents = DC_PumpEvents; |
| |
| device->free = DC_DeleteDevice; |
| |
| return device; |
| } |
| |
| VideoBootStrap DC_bootstrap = { |
| "dcvideo", "Dreamcast Video", |
| DC_Available, DC_CreateDevice |
| }; |
| |
| |
| int DC_VideoInit(_THIS, SDL_PixelFormat *vformat) |
| { |
| /* Determine the screen depth (use default 16-bit depth) */ |
| /* we change this during the SDL_SetVideoMode implementation... */ |
| vformat->BitsPerPixel = 16; |
| vformat->Rmask = 0x0000f800; |
| vformat->Gmask = 0x000007e0; |
| vformat->Bmask = 0x0000001f; |
| |
| /* We're done! */ |
| return(0); |
| } |
| |
| const static SDL_Rect |
| RECT_800x600 = {0,0,800,600}, |
| RECT_640x480 = {0,0,640,480}, |
| RECT_320x240 = {0,0,320,240}; |
| const static SDL_Rect *vid_modes[] = { |
| &RECT_800x600, |
| &RECT_640x480, |
| &RECT_320x240, |
| NULL |
| }; |
| |
| SDL_Rect **DC_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) |
| { |
| switch(format->BitsPerPixel) { |
| case 15: |
| case 16: |
| return &vid_modes; |
| case 32: |
| if (!(flags & SDL_OPENGL)) |
| return &vid_modes; |
| default: |
| return NULL; |
| } |
| // return (SDL_Rect **) -1; |
| } |
| |
| pvr_init_params_t params = { |
| /* Enable opaque and translucent polygons with size 16 */ |
| { PVR_BINSIZE_16, PVR_BINSIZE_0, PVR_BINSIZE_16, PVR_BINSIZE_0, PVR_BINSIZE_16 }, |
| |
| /* Vertex buffer size */ |
| 512*1024 |
| }; |
| |
| #if SDL_VIDEO_OPENGL |
| static int pvr_inited; |
| #endif |
| |
| SDL_Surface *DC_SetVideoMode(_THIS, SDL_Surface *current, |
| int width, int height, int bpp, Uint32 flags) |
| { |
| int disp_mode,pixel_mode,pitch; |
| Uint32 Rmask, Gmask, Bmask; |
| |
| if (width==320 && height==240) disp_mode=DM_320x240; |
| else if (width==640 && height==480) disp_mode=DM_640x480; |
| else if (width==800 && height==600) disp_mode=DM_800x608; |
| else { |
| SDL_SetError("Couldn't find requested mode in list"); |
| return(NULL); |
| } |
| |
| switch(bpp) { |
| case 15: pixel_mode = PM_RGB555; pitch = width*2; |
| /* 5-5-5 */ |
| Rmask = 0x00007c00; |
| Gmask = 0x000003e0; |
| Bmask = 0x0000001f; |
| break; |
| case 16: pixel_mode = PM_RGB565; pitch = width*2; |
| /* 5-6-5 */ |
| Rmask = 0x0000f800; |
| Gmask = 0x000007e0; |
| Bmask = 0x0000001f; |
| break; |
| case 24: bpp = 32; |
| case 32: pixel_mode = PM_RGB888; pitch = width*4; |
| Rmask = 0x00ff0000; |
| Gmask = 0x0000ff00; |
| Bmask = 0x000000ff; |
| #if SDL_VIDEO_OPENGL |
| if (!(flags & SDL_OPENGL)) |
| #endif |
| break; |
| default: |
| SDL_SetError("Couldn't find requested mode in list"); |
| return(NULL); |
| } |
| |
| // if ( bpp != current->format->BitsPerPixel ) { |
| if ( ! SDL_ReallocFormat(current, bpp, Rmask, Gmask, Bmask, 0) ) { |
| return(NULL); |
| } |
| // } |
| |
| /* Set up the new mode framebuffer */ |
| current->flags = (SDL_FULLSCREEN|SDL_HWSURFACE); |
| current->w = width; |
| current->h = height; |
| current->pitch = pitch; |
| |
| #if SDL_VIDEO_OPENGL |
| if (pvr_inited) { |
| pvr_inited = 0; |
| pvr_shutdown(); |
| } |
| #endif |
| |
| vid_set_mode(disp_mode,pixel_mode); |
| |
| current->pixels = vram_s; |
| |
| #if SDL_VIDEO_OPENGL |
| if (flags & SDL_OPENGL) { |
| this->gl_config.driver_loaded = 1; |
| current->flags = SDL_FULLSCREEN | SDL_OPENGL; |
| current->pixels = NULL; |
| pvr_inited = 1; |
| pvr_init(¶ms); |
| glKosInit(); |
| glKosBeginFrame(); |
| } else |
| #endif |
| if (flags | SDL_DOUBLEBUF) { |
| current->flags |= SDL_DOUBLEBUF; |
| current->pixels = (void*)((int)current->pixels | 0x400000); |
| } |
| |
| /* We're done */ |
| return(current); |
| } |
| |
| /* We don't actually allow hardware surfaces other than the main one */ |
| static int DC_AllocHWSurface(_THIS, SDL_Surface *surface) |
| { |
| return(-1); |
| } |
| static void DC_FreeHWSurface(_THIS, SDL_Surface *surface) |
| { |
| return; |
| } |
| |
| /* We need to wait for vertical retrace on page flipped displays */ |
| static int DC_LockHWSurface(_THIS, SDL_Surface *surface) |
| { |
| return(0); |
| } |
| |
| static void DC_UnlockHWSurface(_THIS, SDL_Surface *surface) |
| { |
| return; |
| } |
| |
| static int DC_FlipHWSurface(_THIS, SDL_Surface *surface) |
| { |
| if (surface->flags & SDL_DOUBLEBUF) { |
| vid_set_start((int)surface->pixels & 0xffffff); |
| surface->pixels = (void*)((int)surface->pixels ^ 0x400000); |
| } |
| return(0); |
| } |
| |
| static void DC_UpdateRects(_THIS, int numrects, SDL_Rect *rects) |
| { |
| /* do nothing. */ |
| } |
| |
| static int DC_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) |
| { |
| /* do nothing of note. */ |
| return(1); |
| } |
| |
| /* Note: If we are terminated, this could be called in the middle of |
| another SDL video routine -- notably UpdateRects. |
| */ |
| static void DC_VideoQuit(_THIS) |
| { |
| #if SDL_VIDEO_OPENGL |
| if (pvr_inited) { |
| pvr_inited = 0; |
| pvr_shutdown(); |
| } |
| #endif |
| } |
| |
| #if SDL_VIDEO_OPENGL |
| |
| void dmyfunc(void) {} |
| |
| typedef void (*funcptr)(); |
| const static struct { |
| char *name; |
| funcptr addr; |
| } glfuncs[] = { |
| #define DEF(func) {#func,&func} |
| DEF(glBegin), |
| DEF(glBindTexture), |
| DEF(glBlendFunc), |
| DEF(glColor4f), |
| // DEF(glCopyImageID), |
| DEF(glDisable), |
| DEF(glEnable), |
| DEF(glEnd), |
| DEF(glFlush), |
| DEF(glGenTextures), |
| DEF(glGetString), |
| DEF(glLoadIdentity), |
| DEF(glMatrixMode), |
| DEF(glOrtho), |
| DEF(glPixelStorei), |
| // DEF(glPopAttrib), |
| // DEF(glPopClientAttrib), |
| {"glPopAttrib",&dmyfunc}, |
| {"glPopClientAttrib",&dmyfunc}, |
| DEF(glPopMatrix), |
| // DEF(glPushAttrib), |
| // DEF(glPushClientAttrib), |
| {"glPushAttrib",&dmyfunc}, |
| {"glPushClientAttrib",&dmyfunc}, |
| DEF(glPushMatrix), |
| DEF(glTexCoord2f), |
| DEF(glTexEnvf), |
| DEF(glTexImage2D), |
| DEF(glTexParameteri), |
| DEF(glTexSubImage2D), |
| DEF(glVertex2i), |
| DEF(glViewport), |
| #undef DEF |
| }; |
| |
| static void *DC_GL_GetProcAddress(_THIS, const char *proc) |
| { |
| void *ret; |
| int i; |
| |
| ret = glKosGetProcAddress(proc); |
| if (ret) return ret; |
| |
| for(i=0;i<sizeof(glfuncs)/sizeof(glfuncs[0]);i++) { |
| if (SDL_strcmp(proc,glfuncs[i].name)==0) return glfuncs[i].addr; |
| } |
| |
| return NULL; |
| } |
| |
| static int DC_GL_LoadLibrary(_THIS, const char *path) |
| { |
| this->gl_config.driver_loaded = 1; |
| |
| return 0; |
| } |
| |
| static int DC_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value) |
| { |
| GLenum mesa_attrib; |
| int val; |
| |
| switch(attrib) { |
| case SDL_GL_RED_SIZE: |
| val = 5; |
| break; |
| case SDL_GL_GREEN_SIZE: |
| val = 6; |
| break; |
| case SDL_GL_BLUE_SIZE: |
| val = 5; |
| break; |
| case SDL_GL_ALPHA_SIZE: |
| val = 0; |
| break; |
| case SDL_GL_DOUBLEBUFFER: |
| val = 1; |
| break; |
| case SDL_GL_DEPTH_SIZE: |
| val = 16; /* or 32? */ |
| break; |
| case SDL_GL_STENCIL_SIZE: |
| val = 0; |
| break; |
| case SDL_GL_ACCUM_RED_SIZE: |
| val = 0; |
| break; |
| case SDL_GL_ACCUM_GREEN_SIZE: |
| val = 0; |
| case SDL_GL_ACCUM_BLUE_SIZE: |
| val = 0; |
| break; |
| case SDL_GL_ACCUM_ALPHA_SIZE: |
| val = 0; |
| break; |
| default : |
| return -1; |
| } |
| *value = val; |
| return 0; |
| } |
| |
| static void DC_GL_SwapBuffers(_THIS) |
| { |
| glKosFinishFrame(); |
| glKosBeginFrame(); |
| } |
| #endif |