diff options
Diffstat (limited to 'engines/sci/gfx/drivers/directfb_driver.c')
| -rw-r--r-- | engines/sci/gfx/drivers/directfb_driver.c | 1033 |
1 files changed, 0 insertions, 1033 deletions
diff --git a/engines/sci/gfx/drivers/directfb_driver.c b/engines/sci/gfx/drivers/directfb_driver.c deleted file mode 100644 index 634b2b11df..0000000000 --- a/engines/sci/gfx/drivers/directfb_driver.c +++ /dev/null @@ -1,1033 +0,0 @@ -/*************************************************************************** - directfb_driver.c Copyright (C) 2002 Christoph Reichenbach - - - This program may be modified and copied freely according to the terms of - the GNU general public license (GPL), as long as the above copyright - notice and the licensing information contained herein are preserved. - - Please refer to www.gnu.org for licensing details. - - This work is provided AS IS, without warranty of any kind, expressed or - implied, including but not limited to the warranties of merchantibility, - noninfringement, and fitness for a specific purpose. The author will not - be held liable for any damage caused by this work or derivatives of it. - - By using this source code, you agree to the licensing terms as stated - above. - - - Please contact the maintainer for bug reports or inquiries. - - Current Maintainer: - - Christoph Reichenbach (CR) <jameson@linuxgames.com> - -***************************************************************************/ -/* FreeSCI 0.3.1+ graphics driver module for libdirectfb */ - - -#include <stdarg.h> -#include <gfx_system.h> -#include <gfx_driver.h> -#include <gfx_tools.h> -#include <assert.h> -#include <uinput.h> - -#ifdef HAVE_DIRECTFB - -#include <stdio.h> -#include <stdlib.h> -#include <directfb/directfb.h> -#include <unistd.h> - -#define SCIDFB_DRIVER_VERSION "0.4" - -typedef struct _event_queue_struct { - sci_event_t evt; - struct _event_queue_struct *next; -} event_queue_t; - -/* -** For this driver to work to the fullest of its capabilities, the user running it -** must have rw permissions on the following: -** /dev/tty0 (including VT_ACTIVATE perms) -** /dev/tty7 -** /dev/fb0 -** /dev/psaux (if using a PS/2 mouse) -** -** VT_ACTIVATE permissions are, AFAIK, only available to root ATM :-( -*/ - -#define SCIDFB_CAP_ALPHA (1 << 0) /* Do we have an Alpha channel? */ - -#define SCIDFB_MAY_ALPHA (scidfb_internal_caps & SCIDFB_CAP_ALPHA) - -/* Global data */ - -static IDirectFB *scidfb_framebuffer; /* The global framebuffer */ -static IDirectFBDisplayLayer *scidfb_layer; /* The layer we use for drawing */ -static IDirectFBSurface *scidfb_visual; /* Static visual buffer */ -static IDirectFBSurface *scidfb_static_visual; /* Static visual buffer */ -static gfx_pixmap_t *scidfb_static_priority = NULL; -static gfx_pixmap_t *scidfb_back_priority = NULL; -static int scidfb_internal_caps = 0; /* Certain internal capabilities available to us */ - -/* Input structures */ -static IDirectFBEventBuffer *scidfb_input_buffer = NULL; -static event_queue_t *scidfb_event_queue = NULL; -static unsigned int scidfb_buckybits = SCI_EVM_INSERT; - - -/*#define LIST_ALL_DFB_MODES */ /* Uncomment for minimal debugging */ - -#define SCIDFB_CHECKED(f) \ - { \ - DFBResult _r = (f); \ - if (_r != DFB_OK) { \ - scidfb_handle_error(_r, __FILE__, __LINE__); \ - return GFX_ERROR; \ - } \ - } - -#define SCIGFX_CHECKED(f) \ - { \ - DFBResult _r = (f); \ - if (_r != GFX_OK) { \ - return _r; \ - } \ - } - - -static void -scidfb_handle_error(DFBResult errc, char *file, int line) -{ - const char *err = DirectFBErrorString(errc); - - GFXERROR("DFB-GFX, %s L%d: %s\n", file, line, err); -} - - -typedef struct { - int x, y, bpp; -} scidfb_mode_t; - - -static DFBEnumerationResult -scidfb_mode_callback(unsigned int width, unsigned int height, unsigned int bpp, void *conf) -{ - scidfb_mode_t *aim = (scidfb_mode_t *) conf; - scidfb_mode_t *best = aim + 1; - - if ((width >= aim->x && height >= aim->y && bpp >= aim->bpp) - /* Sufficient in all respects... */ - && ((best->bpp == 0) /* First mode that matched */ - || (width < best->x && height <= best->y) /* Improvement on x */ - || (width <= best->x && height < best->y) /* Improvement on y */ - || (width <= best->x && height <= best->y && bpp < best->bpp) - /* Improvement on bpp */ - )) { - best->x = width; - best->y = height; - best->bpp = bpp; - } - -#ifdef LIST_ALL_DFB_MODES - GFXERROR("DFB-GFX: Supports %dx%d at %d bpp\n", width, height, bpp); - return DFENUM_OK; -#endif - - if (aim->x == best->x - && aim->y == best->y - && aim->bpp == best->bpp) - return DFENUM_CANCEL; /* We have what we were looking for */ - - return DFENUM_OK; /* Continue searching */ -} - - -static DFBEnumerationResult -scidfb_layer_callback(unsigned int layer_id, DFBDisplayLayerCapabilities caps, void *resultp) -{ - unsigned int *results = (unsigned int *) resultp; - - if (!(caps & DLCAPS_SURFACE)) - return DFENUM_OK; /* We need a surface */ - - if (!results[1]) - results[0] = layer_id; - - results[1] = 1; - - if (caps & DLCAPS_ALPHACHANNEL) { - /* Optimal! */ - scidfb_internal_caps |= SCIDFB_MAY_ALPHA; - return DFENUM_CANCEL; /* We're done */ - } - - /* Found something, but it might get better */ - return DFENUM_OK; -} - -#define LOOKING_FOR_POINTING_DEVICE 1 -#define LOOKING_FOR_KEYBOARD 2 -#define FOUND_IT 255 - -static DFBEnumerationResult -scidfb_input_callback(unsigned int device_id, DFBInputDeviceDescription descr, void *p) -{ - int *state = (int *) p; - int *result = state + 1; - - /* Check for mouse */ - if (*state == LOOKING_FOR_POINTING_DEVICE - && (descr.type & DIDTF_MOUSE)) { - *result = device_id; - *state = FOUND_IT; - return DFENUM_CANCEL; - } - - /* Check for keyboard */ - if (*state == LOOKING_FOR_KEYBOARD - && (descr.type & DIDTF_KEYBOARD)) { - *result = device_id; - *state = FOUND_IT; - return DFENUM_CANCEL; - } - - return DFENUM_OK; -} - -static int -scidfb_find_layer() -{ - unsigned int results[2]; - - results[1] = 0; - SCIDFB_CHECKED(scidfb_framebuffer->EnumDisplayLayers(scidfb_framebuffer, - scidfb_layer_callback, &results)); - - if (!results[1]) - return GFX_FATAL; /* No decent layer! */ - else { - SCIDFB_CHECKED(scidfb_framebuffer->GetDisplayLayer(scidfb_framebuffer, - results[0], - &scidfb_layer)); - - return GFX_OK; - } -} - -static int -_scidfb_init_input(int *found_keyboard, int *found_mouse) -{ - int inputs[2]; - - inputs[0] = LOOKING_FOR_POINTING_DEVICE; - SCIDFB_CHECKED(scidfb_framebuffer->EnumInputDevices(scidfb_framebuffer, - scidfb_input_callback, &inputs)); - - if ((*found_mouse = (inputs[0] == FOUND_IT))) { - IDirectFBInputDevice *mouse; - SCIDFB_CHECKED(scidfb_framebuffer->GetInputDevice(scidfb_framebuffer, - inputs[1], &mouse)); - - SCIDFB_CHECKED(mouse->CreateEventBuffer(mouse, &scidfb_input_buffer)); - } - - inputs[0] = LOOKING_FOR_KEYBOARD; - SCIDFB_CHECKED(scidfb_framebuffer->EnumInputDevices(scidfb_framebuffer, - scidfb_input_callback, &inputs)); - if ((*found_keyboard = (inputs[0] == FOUND_IT))) { - IDirectFBInputDevice *keyboard; - SCIDFB_CHECKED(scidfb_framebuffer->GetInputDevice(scidfb_framebuffer, - inputs[1], &keyboard)); - - if (scidfb_input_buffer) - SCIDFB_CHECKED(keyboard->AttachEventBuffer(keyboard, scidfb_input_buffer)) - else - SCIDFB_CHECKED(keyboard->CreateEventBuffer(keyboard, - &scidfb_input_buffer)); - } - - - SCIDFB_CHECKED(scidfb_framebuffer->CreateEventBuffer(scidfb_framebuffer, - DICAPS_KEYS - | DICAPS_AXES - | DICAPS_BUTTONS, - &scidfb_input_buffer)); -} - -static int -_scidfb_init_gfx_mode(int width, int height, int bpp) -{ - scidfb_mode_t modes[2]; - modes[0].x = width; - modes[0].y = height; - modes[0].bpp = bpp; - - modes[1].bpp = 0; /* nothing found yet */ - - SCIDFB_CHECKED(DirectFBCreate(&scidfb_framebuffer)); - SCIDFB_CHECKED(scidfb_framebuffer->EnumVideoModes(scidfb_framebuffer, - scidfb_mode_callback, &modes)); - - if (modes[1].bpp) { - DFBDisplayLayerConfig conf; - - if (scidfb_find_layer()) { - GFXERROR("DFB-GFX: No useable display layer found"); - return GFX_FATAL; - } - - SCIDFB_CHECKED(scidfb_framebuffer->SetVideoMode(scidfb_framebuffer, - modes[1].x, modes[1].y, modes[1].bpp)); - - SCIDFB_CHECKED(scidfb_layer->SetCooperativeLevel(scidfb_layer, DLSCL_EXCLUSIVE)); - SCIDFB_CHECKED(scidfb_layer->GetSurface(scidfb_layer, &scidfb_visual)); - - return GFX_OK; - } else - GFXERROR("DFB-GFX: No matching visual could be found!\n"); - - return GFX_FATAL; -} - - -static int -scidfb_build_virtual_surface(IDirectFBSurface **result, int width, int height, - IDirectFBSurface *prototype) -{ - /* This function creates a _virtual_ surface, i.e. a memory buffer, - ** without flipping support */ - DFBSurfaceDescription srf_desc; - IDirectFBSurface *surface; - - SCIDFB_CHECKED(prototype->GetCapabilities(prototype, &(srf_desc.caps))); - srf_desc.caps &= ~DSCAPS_FLIPPING; - srf_desc.width = width; - srf_desc.height = height; - SCIDFB_CHECKED(prototype->GetPixelFormat(prototype, &(srf_desc.pixelformat))); - srf_desc.flags = (DSDESC_CAPS | DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT); - SCIDFB_CHECKED(scidfb_framebuffer->CreateSurface(scidfb_framebuffer, &srf_desc, &surface)); - SCIDFB_CHECKED(surface->Clear(surface, 0, 0, 0, 255)); - - *result = surface; - - return GFX_OK; -} - -static int -scidfb_deactivate_pointer() -{ - SCIDFB_CHECKED(scidfb_layer->EnableCursor(scidfb_layer, 0)); - return 0; -} - - - /*----------------------------------------------------------------*/ -/*----------- Event queue implementation --------------*/ - /*----------------------------------------------------------------*/ - -#define MILLION 1000000 - -static int -scidfb_xlate_key(DFBInputDeviceKeyIdentifier key, int keysym) -{ - if ((keysym >= 'A') && (keysym <= 'Z')) - return keysym; - if ((keysym >= 'a') && (keysym <= 'z')) - return keysym; - if ((keysym >= '0') && (keysym <= '9')) - return keysym; - - switch (key) { - - case DIKI_0: return '0'; - case DIKI_1: return '1'; - case DIKI_2: return '2'; - case DIKI_3: return '3'; - case DIKI_4: return '4'; - case DIKI_5: return '5'; - case DIKI_6: return '6'; - case DIKI_7: return '7'; - case DIKI_8: return '8'; - case DIKI_9: return '9'; - - case DIKI_F1: return SCI_K_F1; - case DIKI_F2: return SCI_K_F2; - case DIKI_F3: return SCI_K_F3; - case DIKI_F4: return SCI_K_F4; - case DIKI_F5: return SCI_K_F5; - case DIKI_F6: return SCI_K_F6; - case DIKI_F7: return SCI_K_F7; - case DIKI_F8: return SCI_K_F8; - case DIKI_F9: return SCI_K_F9; - case DIKI_F10: return SCI_K_F10; - - case DIKI_KP_0: - case DIKI_INSERT: scidfb_buckybits ^= SCI_EVM_INSERT; - return SCI_K_INSERT; - - case DIKI_ESCAPE: return SCI_K_ESC; - case DIKI_LEFT: return SCI_K_LEFT; - case DIKI_RIGHT: return SCI_K_RIGHT; - case DIKI_UP: return SCI_K_UP; - case DIKI_DOWN: return SCI_K_DOWN; - case DIKI_TAB: return SCI_K_TAB; - case DIKI_ENTER: return SCI_K_ENTER; - case DIKI_SPACE: return ' '; - case DIKI_BACKSPACE: return SCI_K_BACKSPACE; - case DIKI_DELETE: return SCI_K_DELETE; - case DIKI_HOME: return SCI_K_HOME; - case DIKI_END: return SCI_K_END; - case DIKI_PAGE_UP: return SCI_K_PGDOWN; - case DIKI_PAGE_DOWN: return SCI_K_PGUP; - - case DIKI_QUOTE_LEFT: return '`'; - case DIKI_MINUS_SIGN: return '-'; - case DIKI_EQUALS_SIGN: return '='; - case DIKI_BRACKET_LEFT: return '['; - case DIKI_BRACKET_RIGHT: return ']'; - case DIKI_BACKSLASH: return '\\'; - case DIKI_SEMICOLON: return ';'; - case DIKI_QUOTE_RIGHT: return '\''; - case DIKI_COMMA: return ','; - case DIKI_SLASH: return '/'; - case DIKI_PERIOD: return '.'; - - case DIKI_KP_DIV: return '/'; - case DIKI_KP_MULT: return '*'; - case DIKI_KP_MINUS: return '-'; - case DIKI_KP_PLUS: return '+'; - case DIKI_KP_ENTER: return SCI_K_ENTER; - case DIKI_KP_SPACE: return ' '; - case DIKI_KP_TAB: return SCI_K_TAB; - case DIKI_KP_F1: return SCI_K_F1; - case DIKI_KP_F2: return SCI_K_F2; - case DIKI_KP_F3: return SCI_K_F3; - case DIKI_KP_F4: return SCI_K_F4; - case DIKI_KP_EQUAL: return '='; - - case DIKI_KP_DECIMAL: return SCI_K_DELETE; - case DIKI_KP_1: return SCI_K_END; - case DIKI_KP_2: return SCI_K_DOWN; - case DIKI_KP_3: return SCI_K_PGDOWN; - case DIKI_KP_4: return SCI_K_LEFT; - case DIKI_KP_5: return SCI_K_CENTER; - case DIKI_KP_6: return SCI_K_RIGHT; - case DIKI_KP_7: return SCI_K_HOME; - case DIKI_KP_8: return SCI_K_UP; - case DIKI_KP_9: return SCI_K_PGUP; - - default: - - } - return 0; /* Could not map key */ -} - - -scidfb_handle_bucky(int add, DFBInputDeviceKeyIdentifier key) -{ - int modifier = 0; - - switch(key) { - case DIKI_SHIFT_L: modifier = SCI_EVM_LSHIFT; - break; - case DIKI_SHIFT_R: modifier = SCI_EVM_RSHIFT; - break; - case DIKI_CONTROL_L: - case DIKI_CONTROL_R: modifier = SCI_EVM_CTRL; - break; - case DIKI_ALT_L: - case DIKI_ALT_R: - case DIKI_META_L: - case DIKI_META_R: modifier = SCI_EVM_ALT; - break; - case DIKI_CAPS_LOCK: modifier = SCI_EVM_CAPSLOCK; - break; - case DIKI_NUM_LOCK: modifier = SCI_EVM_NUMLOCK; - break; - case DIKI_SCROLL_LOCK: modifier = SCI_EVM_SCRLOCK; - break; - } - - if (add) - scidfb_buckybits |= modifier; - else - scidfb_buckybits &= ~modifier; -} - -static sci_event_t -scidfb_xlate_event(gfx_driver_t *drv, DFBEvent dfb_pre_evt) -{ - sci_event_t retval; - - retval.type = SCI_EVT_NONE; - retval.buckybits = scidfb_buckybits; - - if (dfb_pre_evt.clazz == DFEC_INPUT) { /* What kind of idiot named these field members? */ - DFBInputEvent dfbevt = dfb_pre_evt.input; - switch (dfbevt.type) { - - case DIET_KEYPRESS: - retval.type = SCI_EVT_KEYBOARD; - scidfb_handle_bucky(1, dfbevt.key_id); - retval.data = scidfb_xlate_key(dfbevt.key_id, dfbevt.key_symbol); - if (retval.data == 0) - retval.type = SCI_EVT_NONE; - break; - - case DIET_KEYRELEASE: - scidfb_handle_bucky(0, dfbevt.key_id); - break; - - case DIET_BUTTONPRESS: - retval.type = SCI_EVT_MOUSE_PRESS; - retval.data = dfbevt.button - DIBI_FIRST; - break; - - case DIET_AXISMOTION:{ - int *victim = NULL; - - if (dfbevt.axis == DIAI_X) - victim = &(drv->pointer_x); - else if (dfbevt.axis == DIAI_Y) - victim = &(drv->pointer_y); - else break; - - if (dfbevt.flags & DIEF_AXISABS) - *victim = dfbevt.axisabs; - else if (dfbevt.flags & DIEF_AXISREL) - *victim += dfbevt.axisrel; - } - break; - - case DIET_BUTTONRELEASE: - retval.type = SCI_EVT_MOUSE_RELEASE; - retval.data = dfbevt.button - DIBI_FIRST; - break; - } - } - - return retval; -} - -static void -scidfb_queue_event(sci_event_t evt) -{ - event_queue_t *node = malloc(sizeof(event_queue_t)); - event_queue_t **seekerp = &scidfb_event_queue; - - node->evt = evt; - node->next = NULL; - - while (*seekerp) - seekerp = &((*seekerp)->next); - - *seekerp = node; -} - - -static int -scidfb_queue_next_event(gfx_driver_t *drv, long micros_to_wait) -{ - DFBEvent dfb_event; - long secs = micros_to_wait / MILLION; - long usecs = (micros_to_wait - (secs * MILLION)) / 1000; - int has_event; - DFBResult timeout; - - timeout = scidfb_input_buffer->WaitForEventWithTimeout(scidfb_input_buffer, - secs, usecs); - if (timeout != DFB_TIMEOUT) - SCIDFB_CHECKED(timeout); - - has_event = scidfb_input_buffer->HasEvent(scidfb_input_buffer); - if (has_event == DFB_OK) { - sci_event_t evt; - /* We have a new event */ - SCIDFB_CHECKED(scidfb_input_buffer->GetEvent(scidfb_input_buffer, &dfb_event)); - evt = scidfb_xlate_event(drv, dfb_event); - - if (evt.type != SCI_EVT_NONE) - scidfb_queue_event(evt); - - return 0; - } else - if (has_event != DFB_BUFFEREMPTY) - return has_event; /* An error occured */ -} - - -static int -_scidfb_read_event(sci_event_t *evtp) -{ - if (scidfb_event_queue) { - event_queue_t *q = scidfb_event_queue; - *evtp = q->evt; - scidfb_event_queue = q->next; - free(q); - - return 1; - } else { - evtp->type = SCI_EVT_NONE; - return 0; - } -} - - - - - /*----------------------------------------------------------------*/ -/*----------- Implementations required by gfx_driver_t --------------*/ - /*----------------------------------------------------------------*/ - - -static int -scidfb_set_parameter(gfx_driver_t *drv, char *name, char *value) -{ - fprintf(stderr, "FIXME: These must be caught and moved in between DirectFBInit() and ..Create()\n"); - exit(1); - SCIDFB_CHECKED(DirectFBSetOption(name, value)); - return GFX_OK; -} - -static int -_scidfb_decode_pixel_format(DFBSurfacePixelFormat pixel_format, - int *rm, int *gm, int *bm, int *am, - int *rs, int *gs, int *bs, int *as, int *bytespp) -{ - /* Initially, the masks are set to the number of bits they occupy, and shifts - ** are left shifts */ - int _rs, _gs, _bs, _as; - - _as = 0; - *am = 0; - *as = 0; - - switch (pixel_format) { - - case DSPF_RGB15: - *bytespp = 2; - *rm = 5; _rs = 10; - *gm = 5; _gs = 5; - *bm = 5; _bs = 0; - break; - - case DSPF_RGB16: - *bytespp = 2; - *rm = 5; _rs = 11; - *gm = 6; _gs = 5; - *bm = 5; _bs = 0; - break; - - case DSPF_RGB24: - *bytespp = 3; - *rm = 8; _rs = 16; - *gm = 8; _gs = 8; - *bm = 8; _bs = 0; - break; - - case DSPF_RGB32: - *bytespp = 4; - *rm = 8; _rs = 16; - *gm = 8; _gs = 8; - *bm = 8; _bs = 0; - break; - - case DSPF_ARGB: - *bytespp = 4; - *am = 8; _as = 24; - *rm = 8; _rs = 16; - *gm = 8; _gs = 8; - *bm = 8; _bs = 0; - break; - - case DSPF_RGB332: - *bytespp = 1; - *rm = 3; _rs = 5; - *gm = 3; _gs = 2; - *bm = 2; _bs = 0; - break; - - default: - GFXERROR("DFB-GFX: Unknown/unsupported pixel format %08x\n", pixel_format); - return GFX_FATAL; - } - - /* Calculate correct shifts */ - *rs = 32 - *rm - _rs; - *gs = 32 - *gm - _gs; - *bs = 32 - *bm - _bs; - *as = 32 - *am - _as; - - /* Calculate correct masks */ - *rm = ((1 << (*rm)) - 1) << _rs; - *gm = ((1 << (*gm)) - 1) << _gs; - *bm = ((1 << (*bm)) - 1) << _bs; - *am = ((1 << (*am)) - 1) << _as; - - return GFX_OK; -} - -static int -scidfb_init_specific(gfx_driver_t *drv, int xres, int yres, int bytespp) -{ - DFBSurfacePixelFormat pixel_format; - char **p; - char *foo = ""; - int n = 1; - - int width, height; - int red_mask, green_mask, blue_mask, alpha_mask; - int red_shift, green_shift, blue_shift, alpha_shift; - int bytespp_real; - int mouse, keyboard; - - p = &foo; - DirectFBInit(&n, &p); - - SCIDFB_CHECKED(DirectFBSetOption("no-sighandler", "1")); - - SCIGFX_CHECKED(_scidfb_init_gfx_mode(xres, yres, (1 << bytespp) - 1)); - SCIGFX_CHECKED(_scidfb_init_input(&keyboard, &mouse)); - - if (!keyboard) { - GFXERROR("DFB-GFX: No keyboard found-- aborting...\n"); - return GFX_FATAL; - } - if (!mouse) { - GFXWARN("DFB-GFX: No pointing device found, disabling mouse support...\n"); - drv->capabilities &= ~GFX_CAPABILITY_MOUSE_SUPPORT; - } - - SCIDFB_CHECKED(scidfb_visual->GetSize(scidfb_visual, &width, &height)); - - scidfb_deactivate_pointer(); - SCIDFB_CHECKED(scidfb_visual->Clear(scidfb_visual, 0, 0, 0, 255)); - SCIDFB_CHECKED(scidfb_visual->Flip(scidfb_visual, NULL, DSFLIP_BLIT)); - - - /* If neccessary, create a sub-surface */ - if (width > xres * 320 || height > yres * 200) { - IDirectFBSurface *subsurface; - DFBRectangle region; - region.w = xres * 320; - region.h = yres * 200; - region.x = (width - region.w) >> 1; - region.y = (height - region.h) >> 1; - - SCIDFB_CHECKED(scidfb_visual->GetSubSurface(scidfb_visual, ®ion, &subsurface)); - - scidfb_visual = subsurface; - } - - scidfb_visual->SetDrawingFlags(scidfb_visual, DSDRAW_BLEND); /* Unchecked: It's just a - ** feature */ - SCIDFB_CHECKED(scidfb_visual->GetPixelFormat(scidfb_visual, &pixel_format)); - - SCIGFX_CHECKED(_scidfb_decode_pixel_format(pixel_format, - &red_mask, &green_mask, &blue_mask, &alpha_mask, - &red_shift, &green_shift, &blue_shift, &alpha_shift, - &bytespp_real)); - - fprintf(stderr, "Mode %08x -> (%x>>%d, %x>>%d, %x>>%d, %x>>%d) at %d bytespp\n", - pixel_format, - red_mask, red_shift, - green_mask, green_shift, - blue_mask, blue_shift, - alpha_mask, alpha_shift, - bytespp_real); - - drv->mode = gfx_new_mode(xres, yres, - bytespp_real, - red_mask, green_mask, blue_mask, alpha_mask, - red_shift, green_shift, blue_shift, alpha_shift, - 0 /* not palette mode*/, - 0); - - SCIGFX_CHECKED(scidfb_build_virtual_surface(&scidfb_static_visual, - drv->mode->xfact * 320, - drv->mode->yfact * 200, - scidfb_visual)); - - scidfb_back_priority = - gfx_pixmap_alloc_index_data(gfx_new_pixmap(drv->mode->xfact * 320, - drv->mode->yfact * 200, - GFX_RESID_NONE, 0, 0)); - - return GFX_OK; -} - -static int -_scidfb_set_color(gfx_color_t *c) -{ - SCIDFB_CHECKED(scidfb_visual->SetColor(scidfb_visual, - c->visual.r, c->visual.g, c->visual.b, - (c->mask & GFX_MASK_VISUAL)? (255 - c->alpha) : 0)); - return GFX_OK; -} - -static int -scidfb_init(gfx_driver_t *drv) -{ - return scidfb_init_specific(drv, 2, 2, 1); -} - - -static void -scidfb_exit(gfx_driver_t *drv) -{ - gfx_free_pixmap(drv, scidfb_back_priority); -} - -static int -scidfb_draw_line(gfx_driver_t *drv, point_t start, point_t end, gfx_color_t color, - gfx_line_mode_t line_mode, gfx_line_style_t line_style) -{ - int xc, yc; - - SCIGFX_CHECKED(_scidfb_set_color(&color)); - - if (line_mode == GFX_LINE_MODE_FINE) { - SCIDFB_CHECKED(scidfb_visual->DrawLine(scidfb_visual, - start.x, start.y, - end.x, end.y)); - } else /* "Correct" lines */ - for (xc = 0; xc < drv->mode->xfact; xc++) - for (yc = 0; yc < drv->mode->yfact; yc++) - SCIDFB_CHECKED(scidfb_visual->DrawLine(scidfb_visual, - start.x + xc, - start.y + yc, - end.x + xc, - end.y + yc)); - - return GFX_OK; -} - -static int -scidfb_draw_filled_rect(gfx_driver_t *drv, rect_t rect, - gfx_color_t color1, gfx_color_t color2, - gfx_rectangle_fill_t shade_mode) -{ - SCIGFX_CHECKED(_scidfb_set_color(&color1)); - SCIDFB_CHECKED(scidfb_visual->FillRectangle(scidfb_visual, - rect.x, rect.y, - rect.xl, rect.yl)); - - return GFX_OK; -} - -static int -scidfb_register_pixmap(gfx_driver_t *drv, gfx_pixmap_t *pxm) -{ - return GFX_OK; -} - - -static int -scidfb_unregister_pixmap(gfx_driver_t *drv, gfx_pixmap_t *pxm) -{ - return GFX_OK; -} - - -static int -scidfb_draw_pixmap(gfx_driver_t *drv, gfx_pixmap_t *pxm, int priority, - rect_t src, rect_t dest, gfx_buffer_t buffer) -{ - void *_dest_data; - byte *dest_data; - int line_width; - IDirectFBSurface *visual = (buffer == GFX_BUFFER_STATIC)? - scidfb_static_visual : scidfb_visual; - gfx_pixmap_t *priority_map = (buffer == GFX_BUFFER_STATIC)? - scidfb_static_priority : scidfb_back_priority; - - SCIDFB_CHECKED(visual->Lock(visual, DSLF_WRITE | DSLF_READ, - &_dest_data, &line_width)); - dest_data = (byte *) _dest_data; - - gfx_crossblit_pixmap(drv->mode, pxm, priority, src, dest, dest_data, - line_width, - priority_map->index_data, priority_map->index_xl, - 1, 0); - - SCIDFB_CHECKED(visual->Unlock(visual)); -} - -static int -scidfb_grab_pixmap(gfx_driver_t *drv, rect_t src, gfx_pixmap_t *pxm, - gfx_map_mask_t map) -{ - void *_src_data; - byte *src_data; - byte *dest = pxm->data; - int line_width; - int write_width = drv->mode->bytespp * (src.xl); - - pxm->xl = src.xl; - pxm->yl = src.yl; - - if (map != GFX_MASK_VISUAL) { - fprintf(stderr, "Not trying to read from visual mask-- not supported!"); - return GFX_FATAL; - } - - SCIDFB_CHECKED(scidfb_visual->Lock(scidfb_visual, DSLF_READ | DSLF_WRITE, - /* Must use DSLF_WRITE to choose the back buffer, - ** otherwise the front buffer would be chosen */ - &_src_data, &line_width)); - src_data = (byte *) _src_data; - - src_data += (drv->mode->bytespp * src.x) - + (line_width * src.y); /* left upper corner of the source */ - - if (src.y < 0){ - fprintf(stderr, "src.y=%d\n", src.y); - exit(1); - } - - while (src.yl--) { - memcpy(dest, src_data, write_width); - src_data += line_width; - dest += write_width; - } - - - SCIDFB_CHECKED(scidfb_visual->Unlock(scidfb_visual)); -} - -static int -scidfb_update(gfx_driver_t *drv, rect_t src, point_t dest, gfx_buffer_t buffer) -{ - if (src.x != dest.x - || src.y != dest.y) { - GFXERROR("DFB-GFX: Attempt to update from (%d,%d,%d,%d) to (%d,%d)\n", - GFX_PRINT_RECT(src), dest.x, dest.y); - } - - if (buffer == GFX_BUFFER_FRONT) { - DFBRegion region; - region.x1 = src.x; - region.y1 = src.y; - region.x2 = src.x + src.xl; - region.y2 = src.y + src.yl; - - SCIDFB_CHECKED(scidfb_visual->Flip(scidfb_visual, ®ion, DSFLIP_BLIT)); - } else { /* Back buffer update */ - DFBRectangle dest_rect; - dest_rect.x = src.x; - dest_rect.y = src.y; - dest_rect.w = src.xl; - dest_rect.h = src.yl; - - SCIDFB_CHECKED(scidfb_visual->Blit(scidfb_visual, - scidfb_static_visual, - &dest_rect, - dest.x, dest.y)); - - /* Now update the priority map: */ - if (scidfb_static_priority) /* only if the buffers have been initialized */ - gfx_copy_pixmap_box_i(scidfb_back_priority, scidfb_static_priority, src); - } - - return GFX_OK; -} - -static int -scidfb_set_static_buffer(gfx_driver_t *drv, gfx_pixmap_t *pic, gfx_pixmap_t *priority) -{ - void *_dest; - byte *dest; - byte *src = pic->data; - int line_width; - int draw_width = pic->xl * drv->mode->bytespp; - int i; - - scidfb_static_priority = priority; - SCIDFB_CHECKED(scidfb_static_visual->Lock(scidfb_static_visual, DSLF_WRITE, - &_dest, &line_width)); - dest = (byte *) _dest; - - for (i = 0; i < pic->yl; i++) { - memcpy(dest, src, draw_width); - dest += line_width; - src += draw_width; - } - - SCIDFB_CHECKED(scidfb_static_visual->Unlock(scidfb_static_visual)); - - return GFX_OK; -} - -static void -_normalize_pointer(gfx_driver_t *drv) -{ - int maxw = drv->mode->xfact * 320; - int maxh = drv->mode->yfact * 200; - - if (drv->pointer_x < 0) - drv->pointer_x = 0; - if (drv->pointer_x >= maxw) - drv->pointer_x = maxw - 1; - if (drv->pointer_y < 0) - drv->pointer_y = 0; - if (drv->pointer_y >= maxh) - drv->pointer_y = maxh - 1; -} - - -static sci_event_t -scidfb_get_event(gfx_driver_t *drv) -{ - sci_event_t retval; - - scidfb_queue_next_event(drv, 0); - _scidfb_read_event(&retval); - - _normalize_pointer(drv); - - - return retval; -} - -static int -scidfb_usec_sleep(gfx_driver_t *drv, long usecs) -{ - scidfb_queue_next_event(drv, usecs); - _normalize_pointer(drv); - return GFX_OK; -} - -gfx_driver_t gfx_driver_dfb = { - "dfb", - SCIDFB_DRIVER_VERSION, - SCI_GFX_DRIVER_MAGIC, - SCI_GFX_DRIVER_VERSION, - NULL, - 0, 0, - GFX_CAPABILITY_MOUSE_SUPPORT - | GFX_CAPABILITY_FINE_LINES, - 0, - scidfb_set_parameter, - scidfb_init_specific, - scidfb_init, - scidfb_exit, - scidfb_draw_line, - scidfb_draw_filled_rect, - scidfb_register_pixmap, - scidfb_unregister_pixmap, - scidfb_draw_pixmap, - scidfb_grab_pixmap, - scidfb_update, - scidfb_set_static_buffer, - NULL, - NULL, - scidfb_get_event, - scidfb_usec_sleep, - NULL -}; - -#endif |