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Diffstat (limited to 'src/input/libdvdnav/highlight.c')
-rw-r--r--src/input/libdvdnav/highlight.c344
1 files changed, 344 insertions, 0 deletions
diff --git a/src/input/libdvdnav/highlight.c b/src/input/libdvdnav/highlight.c
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+++ b/src/input/libdvdnav/highlight.c
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+/*
+ * Copyright (C) 2000 Rich Wareham <richwareham@users.sourceforge.net>
+ *
+ * This file is part of libdvdnav, a DVD navigation library.
+ *
+ * libdvdnav is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * libdvdnav 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ * $Id: highlight.c,v 1.1 2002/08/08 17:49:21 richwareham Exp $
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+/*
+#define BUTTON_TESTING
+*/
+#include <assert.h>
+
+#include <dvdnav.h>
+#include "dvdnav_internal.h"
+
+#include "vm.h"
+#
+#include <dvdread/nav_types.h>
+
+#ifdef BUTTON_TESTING
+#include <dvdread/nav_print.h>
+#endif
+
+/* Highlighting API calls */
+
+dvdnav_status_t dvdnav_get_current_highlight(dvdnav_t *this, int* button) {
+ if(!this)
+ return S_ERR;
+
+ /* Simply return the appropriate value based on the SPRM */
+ (*button) = (this->vm->state.HL_BTNN_REG) >> 10;
+
+ return S_OK;
+}
+
+btni_t *__get_current_button(dvdnav_t *this) {
+ int button = 0;
+
+ if(dvdnav_get_current_highlight(this, &button) != S_OK) {
+ printerrf("Unable to get information on current highlight.");
+ return NULL;
+ }
+#ifdef BUTTON_TESTING
+ navPrint_PCI(&(this->pci));
+#endif
+
+ return &(this->pci.hli.btnit[button-1]);
+}
+
+dvdnav_status_t dvdnav_button_auto_action(dvdnav_t *this) {
+ btni_t *button_ptr;
+
+ if(!this)
+ return S_ERR;
+
+ if((button_ptr = __get_current_button(this)) == NULL) {
+ return S_ERR;
+ }
+ if (button_ptr->auto_action_mode == 1) {
+ return S_OK;
+ }
+ return S_ERR;
+}
+
+
+dvdnav_status_t dvdnav_upper_button_select(dvdnav_t *this) {
+ btni_t *button_ptr;
+
+ if(!this)
+ return S_ERR;
+
+ if((button_ptr = __get_current_button(this)) == NULL) {
+ return S_ERR;
+ }
+
+ dvdnav_button_select(this, button_ptr->up);
+ if (dvdnav_button_auto_action(this) ) {
+ dvdnav_button_activate(this);
+ }
+
+ return S_OK;
+}
+
+dvdnav_status_t dvdnav_lower_button_select(dvdnav_t *this) {
+ btni_t *button_ptr;
+
+ if(!this)
+ return S_ERR;
+
+ if((button_ptr = __get_current_button(this)) == NULL) {
+ return S_ERR;
+ }
+
+ dvdnav_button_select(this, button_ptr->down);
+ if (dvdnav_button_auto_action(this) ) {
+ dvdnav_button_activate(this);
+ }
+
+ return S_OK;
+}
+
+dvdnav_status_t dvdnav_right_button_select(dvdnav_t *this) {
+ btni_t *button_ptr;
+
+ if(!this)
+ return S_ERR;
+
+ if((button_ptr = __get_current_button(this)) == NULL) {
+ printerr("Error fetching information on current button.");
+ return S_ERR;
+ }
+
+ dvdnav_button_select(this, button_ptr->right);
+ if (dvdnav_button_auto_action(this) ) {
+ dvdnav_button_activate(this);
+ }
+
+ return S_OK;
+}
+
+dvdnav_status_t dvdnav_left_button_select(dvdnav_t *this) {
+ btni_t *button_ptr;
+
+ if(!this)
+ return S_ERR;
+
+ if((button_ptr = __get_current_button(this)) == NULL) {
+ return S_ERR;
+ }
+
+ dvdnav_button_select(this, button_ptr->left);
+ if (dvdnav_button_auto_action(this) ) {
+ dvdnav_button_activate(this);
+ }
+
+ return S_OK;
+}
+
+dvdnav_status_t dvdnav_get_highlight_area(pci_t* nav_pci , int32_t button, int32_t mode,
+ dvdnav_highlight_area_t* highlight) {
+ btni_t *button_ptr;
+#ifdef BUTTON_TESTING
+ fprintf(stderr,"Button get_highlight_area %i\n", button);
+#endif
+
+ /* Set the highlight SPRM if the passed button was valid*/
+ if((button <= 0) || (button > nav_pci->hli.hl_gi.btn_ns)) {
+ fprintf(stderr,"Unable to select button number %i as it doesn't exist\n",
+ button);
+ return S_ERR;
+ }
+ button_ptr = &nav_pci->hli.btnit[button-1];
+
+ highlight->sx = button_ptr->x_start;
+ highlight->sy = button_ptr->y_start;
+ highlight->ex = button_ptr->x_end;
+ highlight->ey = button_ptr->y_end;
+ if(button_ptr->btn_coln != 0) {
+ highlight->palette = nav_pci->hli.btn_colit.btn_coli[button_ptr->btn_coln-1][mode];
+ } else {
+ highlight->palette = 0;
+ }
+ highlight->pts = nav_pci->hli.hl_gi.hli_s_ptm;
+ highlight->buttonN = button;
+#ifdef BUTTON_TESTING
+ fprintf(stderr,"highlight.c:Highlight area is (%u,%u)-(%u,%u), display = %i, button = %u\n",
+ button_ptr->x_start, button_ptr->y_start,
+ button_ptr->x_end, button_ptr->y_end,
+ 1,
+ button);
+#endif
+
+ return S_OK;
+}
+
+dvdnav_status_t dvdnav_button_activate(dvdnav_t *this) {
+ int button;
+ btni_t *button_ptr = NULL;
+
+ if(!this)
+ return S_ERR;
+ pthread_mutex_lock(&this->vm_lock);
+
+ /* Precisely the same as selecting a button except we want
+ * a different palette */
+ if(dvdnav_get_current_highlight(this, &button) != S_OK) {
+ pthread_mutex_unlock(&this->vm_lock);
+ return S_ERR;
+ }
+/* FIXME: dvdnav_button_select should really return a
+ * special case for explicit NO-BUTTONS.
+ */
+ if(dvdnav_button_select(this, button) != S_OK) {
+ /* Special code to handle still menus with no buttons.
+ * the navigation is expected to report to the appicatino that a STILL is
+ * underway. In turn, the application is supposed to report to the user
+ * that the playback is pause. The user is then expected to undo the pause.
+ * ie: hit play. At that point, the navigation should release the still and
+ * go to the next Cell.
+ * Explanation by Mathieu Lavage <mathieu_lacage@realmagic.fr>
+ * Code added by jcdutton.
+ */
+ if (this->position_current.still != 0) {
+ /* In still, but no buttons. */
+ vm_get_next_cell(this->vm);
+ this->position_current.still = 0;
+ pthread_mutex_unlock(&this->vm_lock);
+ return S_OK;
+ }
+ pthread_mutex_unlock(&this->vm_lock);
+ return S_ERR;
+ }
+ /* FIXME: The button command should really be passed in the API instead. */
+ button_ptr = __get_current_button(this);
+ /* Finally, make the VM execute the appropriate code and
+ * scedule a jump */
+#ifdef BUTTON_TESTING
+ fprintf(stderr, "libdvdnav: Evaluating Button Activation commands.\n");
+#endif
+ if(vm_eval_cmd(this->vm, &(button_ptr->cmd)) == 1) {
+ /* Command caused a jump */
+ this->vm->hop_channel++;
+ this->position_current.still = 0;
+ }
+ pthread_mutex_unlock(&this->vm_lock);
+ return S_OK;
+}
+
+dvdnav_status_t dvdnav_button_select(dvdnav_t *this, int button) {
+
+ if(!this) {
+ printerrf("Unable to select button number %i as this state bad",
+ button);
+ return S_ERR;
+ }
+
+#ifdef BUTTON_TESTING
+ fprintf(stderr,"libdvdnav: Button select %i\n", button);
+#endif
+
+ /* Set the highlight SPRM if the passed button was valid*/
+ /* FIXME: this->pci should be provided by the application. */
+ if((button <= 0) || (button > this->pci.hli.hl_gi.btn_ns)) {
+ printerrf("Unable to select button number %i as it doesn't exist",
+ button);
+ return S_ERR;
+ }
+ this->vm->state.HL_BTNN_REG = (button << 10);
+
+ this->hli_state = 1; /* Selected */
+
+ this->position_current.button = -1; /* Force Highligh change */
+
+ return S_OK;
+}
+
+dvdnav_status_t dvdnav_button_select_and_activate(dvdnav_t *this,
+ int button) {
+ /* A trivial function */
+ if(dvdnav_button_select(this, button) != S_ERR) {
+ return dvdnav_button_activate(this);
+ }
+
+ /* Should never get here without an error */
+ return S_ERR;
+}
+
+dvdnav_status_t dvdnav_mouse_select(dvdnav_t *this, int x, int y) {
+ int button, cur_button;
+ uint32_t best,dist;
+ int mx,my,dx,dy,d;
+
+ /* FIXME: At the moment, the case of no button matchin (x,y) is
+ * silently ignored, is this OK? */
+ if(!this)
+ return S_ERR;
+
+ if(dvdnav_get_current_highlight(this, &cur_button) != S_OK) {
+ return S_ERR;
+ }
+
+ best = 0;
+ dist = 0x08000000; /* >> than (720*720)+(567*567); */
+
+ /* Loop through each button */
+ for(button=1; button <= this->pci.hli.hl_gi.btn_ns; button++) {
+ btni_t *button_ptr = NULL;
+ button_ptr = &(this->pci.hli.btnit[button-1]);
+ if((x >= button_ptr->x_start) && (x <= button_ptr->x_end) &&
+ (y >= button_ptr->y_start) && (y <= button_ptr->y_end)) {
+ mx = (button_ptr->x_start + button_ptr->x_end)/2;
+ my = (button_ptr->y_start + button_ptr->y_end)/2;
+ dx = mx - x;
+ dy = my - y;
+ d = (dx*dx) + (dy*dy);
+ /* If the mouse is within the button and the mouse is closer
+ * to the center of this button then it is the best choice. */
+ if(d < dist) {
+ dist = d; best=button;
+ }
+ }
+ }
+
+ if (best!=0) {
+ /* As an efficiency measure, only re-select the button
+ * if it is different to the previously selected one. */
+ if(best != cur_button) {
+ dvdnav_button_select(this, best);
+ }
+ }
+
+ return S_OK;
+}
+
+dvdnav_status_t dvdnav_mouse_activate(dvdnav_t *this, int x, int y) {
+ /* A trivial function */
+ if(dvdnav_mouse_select(this, x,y) != S_ERR) {
+ return dvdnav_button_activate(this);
+ }
+
+ /* Should never get here without an error */
+ return S_ERR;
+}
+
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