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-rw-r--r--src/surface/sdl.c660
1 files changed, 660 insertions, 0 deletions
diff --git a/src/surface/sdl.c b/src/surface/sdl.c
new file mode 100644
index 0000000..cc83a4e
--- /dev/null
+++ b/src/surface/sdl.c
@@ -0,0 +1,660 @@
+/*
+ * Copyright 2009 Vincent Sanders <vince@simtec.co.uk>
+ *
+ * This file is part of libnsfb, http://www.netsurf-browser.org/
+ * Licenced under the MIT License,
+ * http://www.opensource.org/licenses/mit-license.php
+ */
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <SDL/SDL.h>
+
+#include "libnsfb.h"
+#include "libnsfb_event.h"
+#include "libnsfb_plot.h"
+#include "libnsfb_plot_util.h"
+
+#include "nsfb.h"
+#include "frontend.h"
+#include "plot.h"
+#include "cursor.h"
+
+enum nsfb_key_code_e sdl_nsfb_map[] = {
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_BACKSPACE,
+ NSFB_KEY_TAB,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_CLEAR,
+ NSFB_KEY_RETURN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_PAUSE,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_ESCAPE,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_SPACE,
+ NSFB_KEY_EXCLAIM,
+ NSFB_KEY_QUOTEDBL,
+ NSFB_KEY_HASH,
+ NSFB_KEY_DOLLAR,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_AMPERSAND,
+ NSFB_KEY_QUOTE,
+ NSFB_KEY_LEFTPAREN,
+ NSFB_KEY_RIGHTPAREN,
+ NSFB_KEY_ASTERISK,
+ NSFB_KEY_PLUS,
+ NSFB_KEY_COMMA,
+ NSFB_KEY_MINUS,
+ NSFB_KEY_PERIOD,
+ NSFB_KEY_SLASH,
+ NSFB_KEY_0,
+ NSFB_KEY_1,
+ NSFB_KEY_2,
+ NSFB_KEY_3,
+ NSFB_KEY_4,
+ NSFB_KEY_5,
+ NSFB_KEY_6,
+ NSFB_KEY_7,
+ NSFB_KEY_8,
+ NSFB_KEY_9,
+ NSFB_KEY_COLON,
+ NSFB_KEY_SEMICOLON,
+ NSFB_KEY_LESS,
+ NSFB_KEY_EQUALS,
+ NSFB_KEY_GREATER,
+ NSFB_KEY_QUESTION,
+ NSFB_KEY_AT,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_LEFTBRACKET,
+ NSFB_KEY_BACKSLASH,
+ NSFB_KEY_RIGHTBRACKET,
+ NSFB_KEY_CARET,
+ NSFB_KEY_UNDERSCORE,
+ NSFB_KEY_BACKQUOTE,
+ NSFB_KEY_a,
+ NSFB_KEY_b,
+ NSFB_KEY_c,
+ NSFB_KEY_d,
+ NSFB_KEY_e,
+ NSFB_KEY_f,
+ NSFB_KEY_g,
+ NSFB_KEY_h,
+ NSFB_KEY_i,
+ NSFB_KEY_j,
+ NSFB_KEY_k,
+ NSFB_KEY_l,
+ NSFB_KEY_m,
+ NSFB_KEY_n,
+ NSFB_KEY_o,
+ NSFB_KEY_p,
+ NSFB_KEY_q,
+ NSFB_KEY_r,
+ NSFB_KEY_s,
+ NSFB_KEY_t,
+ NSFB_KEY_u,
+ NSFB_KEY_v,
+ NSFB_KEY_w,
+ NSFB_KEY_x,
+ NSFB_KEY_y,
+ NSFB_KEY_z,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_DELETE,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_KP0,
+ NSFB_KEY_KP1,
+ NSFB_KEY_KP2,
+ NSFB_KEY_KP3,
+ NSFB_KEY_KP4,
+ NSFB_KEY_KP5,
+ NSFB_KEY_KP6,
+ NSFB_KEY_KP7,
+ NSFB_KEY_KP8,
+ NSFB_KEY_KP9,
+ NSFB_KEY_KP_PERIOD,
+ NSFB_KEY_KP_DIVIDE,
+ NSFB_KEY_KP_MULTIPLY,
+ NSFB_KEY_KP_MINUS,
+ NSFB_KEY_KP_PLUS,
+ NSFB_KEY_KP_ENTER,
+ NSFB_KEY_KP_EQUALS,
+ NSFB_KEY_UP,
+ NSFB_KEY_DOWN,
+ NSFB_KEY_RIGHT,
+ NSFB_KEY_LEFT,
+ NSFB_KEY_INSERT,
+ NSFB_KEY_HOME,
+ NSFB_KEY_END,
+ NSFB_KEY_PAGEUP,
+ NSFB_KEY_PAGEDOWN,
+ NSFB_KEY_F1,
+ NSFB_KEY_F2,
+ NSFB_KEY_F3,
+ NSFB_KEY_F4,
+ NSFB_KEY_F5,
+ NSFB_KEY_F6,
+ NSFB_KEY_F7,
+ NSFB_KEY_F8,
+ NSFB_KEY_F9,
+ NSFB_KEY_F10,
+ NSFB_KEY_F11,
+ NSFB_KEY_F12,
+ NSFB_KEY_F13,
+ NSFB_KEY_F14,
+ NSFB_KEY_F15,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_UNKNOWN,
+ NSFB_KEY_NUMLOCK,
+ NSFB_KEY_CAPSLOCK,
+ NSFB_KEY_SCROLLOCK,
+ NSFB_KEY_RSHIFT,
+ NSFB_KEY_LSHIFT,
+ NSFB_KEY_RCTRL,
+ NSFB_KEY_LCTRL,
+ NSFB_KEY_RALT,
+ NSFB_KEY_LALT,
+ NSFB_KEY_RMETA,
+ NSFB_KEY_LMETA,
+ NSFB_KEY_LSUPER,
+ NSFB_KEY_RSUPER,
+ NSFB_KEY_MODE,
+ NSFB_KEY_COMPOSE,
+ NSFB_KEY_HELP,
+ NSFB_KEY_PRINT,
+ NSFB_KEY_SYSREQ,
+ NSFB_KEY_BREAK,
+ NSFB_KEY_MENU,
+ NSFB_KEY_POWER,
+ NSFB_KEY_EURO,
+ NSFB_KEY_UNDO,
+};
+
+
+static void
+set_palette(nsfb_t *nsfb)
+{
+ SDL_Surface *sdl_screen = nsfb->frontend_priv;
+ SDL_Color palette[256];
+ int rloop, gloop, bloop;
+ int loop = 0;
+
+ /* build a linear R:3 G:3 B:2 colour cube palette. */
+ for (rloop = 0; rloop < 8; rloop++) {
+ for (gloop = 0; gloop < 8; gloop++) {
+ for (bloop = 0; bloop < 4; bloop++) {
+ palette[loop].r = (rloop << 5) | (rloop << 2) | (rloop >> 1);
+ palette[loop].g = (gloop << 5) | (gloop << 2) | (gloop >> 1);
+ palette[loop].b = (bloop << 6) | (bloop << 4) | (bloop << 2) | (bloop);
+ nsfb->palette[loop] = palette[loop].r |
+ palette[loop].g << 8 |
+ palette[loop].b << 16;
+ loop++;
+ }
+ }
+ }
+
+ /* Set palette */
+ SDL_SetColors(sdl_screen, palette, 0, 256);
+
+}
+
+static bool
+sdlcopy(nsfb_t *nsfb, nsfb_bbox_t *srcbox, nsfb_bbox_t *dstbox)
+{
+ SDL_Rect src;
+ SDL_Rect dst;
+ SDL_Surface *sdl_screen = nsfb->frontend_priv;
+ nsfb_bbox_t allbox;
+ struct nsfb_cursor_s *cursor = nsfb->cursor;
+
+ nsfb_plot_add_rect(srcbox, dstbox, &allbox);
+
+ /* clear the cursor if its within the region to be altered */
+ if ((cursor != NULL) &&
+ (cursor->plotted == true) &&
+ (nsfb_plot_bbox_intersect(&allbox, &cursor->loc))) {
+ nsfb_cursor_clear(nsfb, cursor);
+ }
+
+ src.x = srcbox->x0;
+ src.y = srcbox->y0;
+ src.w = srcbox->x1 - srcbox->x0;
+ src.h = srcbox->y1 - srcbox->y0;
+
+ dst.x = dstbox->x0;
+ dst.y = dstbox->y0;
+ dst.w = dstbox->x1 - dstbox->x0;
+ dst.h = dstbox->y1 - dstbox->y0;
+
+ SDL_BlitSurface(sdl_screen, &src, sdl_screen , &dst);
+
+ if ((cursor != NULL) &&
+ (cursor->plotted == false)) {
+ nsfb_cursor_plot(nsfb, cursor);
+ }
+
+ SDL_UpdateRect(sdl_screen, dst.x, dst.y, dst.w, dst.h);
+
+ return true;
+
+}
+
+static int sdl_set_geometry(nsfb_t *nsfb, int width, int height, int bpp)
+{
+ if (nsfb->frontend_priv != NULL)
+ return -1; /* if were already initialised fail */
+
+ nsfb->width = width;
+ nsfb->height = height;
+ nsfb->bpp = bpp;
+
+ /* select default sw plotters for bpp */
+ select_plotters(nsfb);
+
+ nsfb->plotter_fns->copy = sdlcopy;
+
+ return 0;
+}
+
+static int sdl_initialise(nsfb_t *nsfb)
+{
+ SDL_Surface *sdl_screen;
+
+ if (nsfb->frontend_priv != NULL)
+ return -1;
+
+ /* sanity checked depth. */
+ if ((nsfb->bpp != 32) && (nsfb->bpp != 16) && (nsfb->bpp != 8))
+ return -1;
+
+ /* initialise SDL library */
+ if (SDL_Init(SDL_INIT_VIDEO) < 0 ) {
+ fprintf(stderr, "Unable to init SDL: %s\n", SDL_GetError());
+ return -1;
+ }
+ atexit(SDL_Quit);
+
+ sdl_screen = SDL_SetVideoMode(nsfb->width,
+ nsfb->height,
+ nsfb->bpp,
+ SDL_SWSURFACE);
+
+ if (sdl_screen == NULL ) {
+ fprintf(stderr, "Unable to set video: %s\n", SDL_GetError());
+ return -1;
+ }
+
+ nsfb->frontend_priv = sdl_screen;
+
+ if (nsfb->bpp == 8)
+ set_palette(nsfb);
+
+ nsfb->ptr = sdl_screen->pixels;
+ nsfb->linelen = sdl_screen->pitch;
+
+ SDL_ShowCursor(SDL_DISABLE);
+ SDL_EnableKeyRepeat(300, 50);
+
+ return 0;
+}
+
+static int sdl_finalise(nsfb_t *nsfb)
+{
+ nsfb=nsfb;
+ return 0;
+}
+
+static bool sdl_input(nsfb_t *nsfb, nsfb_event_t *event, int timeout)
+{
+ int got_event;
+ SDL_Event sdlevent;
+
+ nsfb = nsfb; /* unused */
+
+ if (timeout < 0)
+ got_event = SDL_WaitEvent(&sdlevent);
+ else
+ got_event = SDL_PollEvent(&sdlevent);
+
+ /* Do nothing if there was no event */
+ if (got_event == 0)
+ return false;
+
+ event->type = NSFB_EVENT_NONE;
+
+ switch (sdlevent.type) {
+ case SDL_KEYDOWN:
+ event->type = NSFB_EVENT_KEY_DOWN;
+ event->value.keycode = sdl_nsfb_map[sdlevent.key.keysym.sym];
+ break;
+
+ case SDL_KEYUP:
+ event->type = NSFB_EVENT_KEY_UP;
+ event->value.keycode = sdl_nsfb_map[sdlevent.key.keysym.sym];
+ break;
+
+ case SDL_MOUSEBUTTONDOWN:
+ event->type = NSFB_EVENT_KEY_DOWN;
+
+ switch (sdlevent.button.button) {
+
+ case SDL_BUTTON_LEFT:
+ event->value.keycode = NSFB_KEY_MOUSE_1;
+ break;
+
+ case SDL_BUTTON_MIDDLE:
+ event->value.keycode = NSFB_KEY_MOUSE_2;
+ break;
+
+ case SDL_BUTTON_RIGHT:
+ event->value.keycode = NSFB_KEY_MOUSE_3;
+ break;
+
+ case SDL_BUTTON_WHEELUP:
+ event->value.keycode = NSFB_KEY_MOUSE_4;
+ break;
+
+ case SDL_BUTTON_WHEELDOWN:
+ event->value.keycode = NSFB_KEY_MOUSE_5;
+ break;
+ }
+ break;
+
+ case SDL_MOUSEBUTTONUP:
+ event->type = NSFB_EVENT_KEY_UP;
+
+ switch (sdlevent.button.button) {
+
+ case SDL_BUTTON_LEFT:
+ event->value.keycode = NSFB_KEY_MOUSE_1;
+ break;
+
+ case SDL_BUTTON_MIDDLE:
+ event->value.keycode = NSFB_KEY_MOUSE_2;
+ break;
+
+ case SDL_BUTTON_RIGHT:
+ event->value.keycode = NSFB_KEY_MOUSE_3;
+ break;
+
+ case SDL_BUTTON_WHEELUP:
+ event->value.keycode = NSFB_KEY_MOUSE_4;
+ break;
+
+ case SDL_BUTTON_WHEELDOWN:
+ event->value.keycode = NSFB_KEY_MOUSE_5;
+ break;
+ }
+ break;
+
+ case SDL_MOUSEMOTION:
+ event->type = NSFB_EVENT_MOVE_ABSOLUTE;
+ event->value.vector.x = sdlevent.motion.x;
+ event->value.vector.y = sdlevent.motion.y;
+ event->value.vector.z = 0;
+ break;
+
+ case SDL_QUIT:
+ event->type = NSFB_EVENT_CONTROL;
+ event->value.controlcode = NSFB_CONTROL_QUIT;
+ break;
+
+ }
+
+ return true;
+}
+
+static int sdl_claim(nsfb_t *nsfb, nsfb_bbox_t *box)
+{
+ struct nsfb_cursor_s *cursor = nsfb->cursor;
+
+ if ((cursor != NULL) &&
+ (cursor->plotted == true) &&
+ (nsfb_plot_bbox_intersect(box, &cursor->loc))) {
+ nsfb_cursor_clear(nsfb, cursor);
+ }
+ return 0;
+}
+
+static int
+sdl_cursor(nsfb_t *nsfb, struct nsfb_cursor_s *cursor)
+{
+ SDL_Surface *sdl_screen = nsfb->frontend_priv;
+ nsfb_bbox_t redraw;
+ nsfb_bbox_t fbarea;
+
+ if ((cursor != NULL) && (cursor->plotted == true)) {
+
+ nsfb_plot_add_rect(&cursor->savloc, &cursor->loc, &redraw);
+
+ /* screen area */
+ fbarea.x0 = 0;
+ fbarea.y0 = 0;
+ fbarea.x1 = nsfb->width;
+ fbarea.y1 = nsfb->height;
+
+ nsfb_plot_clip(&fbarea, &redraw);
+
+ nsfb_cursor_clear(nsfb, cursor);
+
+ nsfb_cursor_plot(nsfb, cursor);
+
+ SDL_UpdateRect(sdl_screen,
+ redraw.x0,
+ redraw.y0,
+ redraw.x1 - redraw.x0,
+ redraw.y1 - redraw.y0);
+
+
+ }
+ return true;
+}
+
+
+static int sdl_update(nsfb_t *nsfb, nsfb_bbox_t *box)
+{
+ SDL_Surface *sdl_screen = nsfb->frontend_priv;
+ struct nsfb_cursor_s *cursor = nsfb->cursor;
+
+ if ((cursor != NULL) &&
+ (cursor->plotted == false)) {
+ nsfb_cursor_plot(nsfb, cursor);
+ }
+
+ SDL_UpdateRect(sdl_screen,
+ box->x0,
+ box->y0,
+ box->x1 - box->x0,
+ box->y1 - box->y0);
+
+ return 0;
+}
+
+const nsfb_frontend_rtns_t sdl_rtns = {
+ .initialise = sdl_initialise,
+ .finalise = sdl_finalise,
+ .input = sdl_input,
+ .claim = sdl_claim,
+ .update = sdl_update,
+ .cursor = sdl_cursor,
+ .geometry = sdl_set_geometry,
+};
+
+NSFB_FRONTEND_DEF(sdl, NSFB_FRONTEND_SDL, &sdl_rtns)
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-23 12:52:19 +0000