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/* |
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* video_sdl.cpp - Video/graphics emulation, SDL specific stuff |
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* |
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< |
* Basilisk II (C) 1997-2005 Christian Bauer |
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* Basilisk II (C) 1997-2008 Christian Bauer |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* Ctrl-F5 = grab mouse (in windowed mode) |
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* |
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* FIXMEs and TODOs: |
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* - Windows requires an extra mouse event to update the actual cursor image? |
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* - Ctr-Tab for suspend/resume but how? SDL does not support that for non-Linux |
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* - Ctrl-Fn doesn't generate SDL_KEYDOWN events (SDL bug?) |
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* - Mouse acceleration, there is no API in SDL yet for that |
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* - Force relative mode in Grab mode even if SDL provides absolute coordinates? |
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– |
* - Fullscreen mode |
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* - Gamma tables support is likely to be broken here |
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* - Events processing is bound to the general emulation thread as SDL requires |
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* to PumpEvents() within the same thread as the one that called SetVideoMode(). |
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* Besides, there can't seem to be a way to call SetVideoMode() from a child thread. |
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– |
* - Refresh performance is still slow. Use SDL_CreateRGBSurface()? |
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* - Backport hw cursor acceleration to Basilisk II? |
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* - Factor out code |
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*/ |
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#include <errno.h> |
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#include <vector> |
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|
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#ifdef WIN32 |
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#include <malloc.h> /* alloca() */ |
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#endif |
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|
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#include "cpu_emulation.h" |
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#include "main.h" |
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#include "adb.h" |
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static volatile bool cursor_changed = false; // Flag: cursor changed, redraw_func must update the cursor |
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static SDL_Color sdl_palette[256]; // Color palette to be used as CLUT and gamma table |
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static bool sdl_palette_changed = false; // Flag: Palette changed, redraw thread must set new colors |
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< |
static const int sdl_eventmask = SDL_MOUSEBUTTONDOWNMASK | SDL_MOUSEBUTTONUPMASK | SDL_MOUSEMOTIONMASK | SDL_KEYUPMASK | SDL_KEYDOWNMASK | SDL_VIDEOEXPOSEMASK | SDL_QUITMASK; |
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static const int sdl_eventmask = SDL_MOUSEEVENTMASK | SDL_KEYEVENTMASK | SDL_VIDEOEXPOSEMASK | SDL_QUITMASK | SDL_ACTIVEEVENTMASK; |
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|
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// Mutex to protect SDL events |
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static SDL_mutex *sdl_events_lock = NULL; |
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|
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static void *vm_acquire_framebuffer(uint32 size) |
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{ |
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< |
return vm_acquire(size); |
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// always try to reallocate framebuffer at the same address |
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static void *fb = VM_MAP_FAILED; |
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if (fb != VM_MAP_FAILED) { |
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if (vm_acquire_fixed(fb, size) < 0) { |
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#ifndef SHEEPSHAVER |
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printf("FATAL: Could not reallocate framebuffer at previous address\n"); |
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#endif |
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fb = VM_MAP_FAILED; |
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} |
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} |
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if (fb == VM_MAP_FAILED) |
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fb = vm_acquire(size, VM_MAP_DEFAULT | VM_MAP_32BIT); |
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return fb; |
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} |
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|
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static inline void vm_release_framebuffer(void *fb, uint32 size) |
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* Windowed display driver |
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*/ |
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|
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static bool SDL_display_opened = false; |
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|
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// Open display |
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driver_window::driver_window(SDL_monitor_desc &m) |
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: driver_base(m), mouse_grabbed(false) |
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// Set absolute mouse mode |
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ADBSetRelMouseMode(mouse_grabbed); |
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|
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// This is ugly: |
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// If we're switching resolutions (ie, not setting it for the first time), |
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// there's a bug in SDL where the SDL_Surface created will not be properly |
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// setup. The solution is to SDL_QuitSubSystem(SDL_INIT_VIDEO) before calling |
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// SDL_SetVideoMode for the second time (SDL_SetVideoMode will call SDL_Init() |
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// and all will be well). Without this, the video becomes corrupted (at least |
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// on Mac OS X), after the resolution switch. |
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if (SDL_display_opened) |
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SDL_QuitSubSystem(SDL_INIT_VIDEO); |
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|
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// Create surface |
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int depth = sdl_depth_of_video_depth(VIDEO_MODE_DEPTH); |
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if ((s = SDL_SetVideoMode(width, height, depth, SDL_HWSURFACE)) == NULL) |
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return; |
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|
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SDL_display_opened = true; |
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|
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#ifdef ENABLE_VOSF |
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use_vosf = true; |
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// Allocate memory for frame buffer (SIZE is extended to page-boundary) |
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ADBKeyDown(0x7f); // Power key |
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ADBKeyUp(0x7f); |
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break; |
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|
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// Application activate/deactivate; consume the event but otherwise ignore it |
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case SDL_ACTIVEEVENT: |
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break; |
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} |
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} |
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} |
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} |
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} |
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|
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// Static display update (fixed frame rate, bounding boxes based) |
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// XXX use NQD bounding boxes to help detect dirty areas? |
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static void update_display_static_bbox(driver_window *drv) |
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{ |
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const VIDEO_MODE &mode = drv->mode; |
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|
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// Allocate bounding boxes for SDL_UpdateRects() |
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const int N_PIXELS = 64; |
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const int n_x_boxes = (VIDEO_MODE_X + N_PIXELS - 1) / N_PIXELS; |
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const int n_y_boxes = (VIDEO_MODE_Y + N_PIXELS - 1) / N_PIXELS; |
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SDL_Rect *boxes = (SDL_Rect *)alloca(sizeof(SDL_Rect) * n_x_boxes * n_y_boxes); |
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int nr_boxes = 0; |
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|
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// Lock surface, if required |
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if (SDL_MUSTLOCK(drv->s)) |
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SDL_LockSurface(drv->s); |
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|
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// Update the surface from Mac screen |
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const int bytes_per_row = VIDEO_MODE_ROW_BYTES; |
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const int bytes_per_pixel = bytes_per_row / VIDEO_MODE_X; |
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int x, y; |
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for (y = 0; y < VIDEO_MODE_Y; y += N_PIXELS) { |
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int h = N_PIXELS; |
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if (h > VIDEO_MODE_Y - y) |
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h = VIDEO_MODE_Y - y; |
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for (x = 0; x < VIDEO_MODE_X; x += N_PIXELS) { |
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int w = N_PIXELS; |
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if (w > VIDEO_MODE_X - x) |
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w = VIDEO_MODE_X - x; |
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const int xs = w * bytes_per_pixel; |
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const int xb = x * bytes_per_pixel; |
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bool dirty = false; |
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for (int j = y; j < (y + h); j++) { |
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const int yb = j * bytes_per_row; |
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if (memcmp(&the_buffer[yb + xb], &the_buffer_copy[yb + xb], xs) != 0) { |
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memcpy(&the_buffer_copy[yb + xb], &the_buffer[yb + xb], xs); |
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Screen_blit((uint8 *)drv->s->pixels + yb + xb, the_buffer + yb + xb, xs); |
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dirty = true; |
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} |
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} |
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if (dirty) { |
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boxes[nr_boxes].x = x; |
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boxes[nr_boxes].y = y; |
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boxes[nr_boxes].w = w; |
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boxes[nr_boxes].h = h; |
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nr_boxes++; |
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} |
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} |
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} |
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|
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// Unlock surface, if required |
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if (SDL_MUSTLOCK(drv->s)) |
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SDL_UnlockSurface(drv->s); |
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|
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// Refresh display |
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if (nr_boxes) |
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SDL_UpdateRects(drv->s, nr_boxes, boxes); |
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} |
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|
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|
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// We suggest the compiler to inline the next two functions so that it |
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// may specialise the code according to the current screen depth and |
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static int tick_counter = 0; |
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if (++tick_counter >= frame_skip) { |
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tick_counter = 0; |
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< |
update_display_static(static_cast<driver_window *>(drv)); |
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const VIDEO_MODE &mode = drv->mode; |
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if ((int)VIDEO_MODE_DEPTH >= VIDEO_DEPTH_8BIT) |
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update_display_static_bbox(static_cast<driver_window *>(drv)); |
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else |
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update_display_static(static_cast<driver_window *>(drv)); |
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} |
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} |
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|
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LOCK_EVENTS; |
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SDL_FreeCursor(sdl_cursor); |
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sdl_cursor = SDL_CreateCursor(MacCursor + 4, MacCursor + 36, 16, 16, MacCursor[2], MacCursor[3]); |
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< |
if (sdl_cursor) |
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> |
if (sdl_cursor) { |
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SDL_SetCursor(sdl_cursor); |
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#ifdef WIN32 |
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// XXX Windows apparently needs an extra mouse event to |
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// make the new cursor image visible |
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int visible = SDL_ShowCursor(-1); |
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if (visible) { |
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int x, y; |
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SDL_GetMouseState(&x, &y); |
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SDL_WarpMouse(x, y); |
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} |
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#endif |
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} |
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UNLOCK_EVENTS; |
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} |
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#endif |
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return 0; |
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} |
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#endif |
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+ |
|
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|
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/* |
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* Record dirty area from NQD |
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*/ |
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|
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#ifdef SHEEPSHAVER |
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void video_set_dirty_area(int x, int y, int w, int h) |
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{ |
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const VIDEO_MODE &mode = drv->mode; |
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const int screen_width = VIDEO_MODE_X; |
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const int screen_height = VIDEO_MODE_Y; |
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const int bytes_per_row = VIDEO_MODE_ROW_BYTES; |
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+ |
|
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#ifdef ENABLE_VOSF |
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if (use_vosf) { |
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vosf_set_dirty_area(x, y, w, h, screen_width, screen_height, bytes_per_row); |
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return; |
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} |
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#endif |
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|
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// XXX handle dirty bounding boxes for non-VOSF modes |
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} |
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#endif |
