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Diffstat (limited to 'distrib/sdl-1.2.12/src/video/riscos/SDL_riscosmouse.c')
-rw-r--r--distrib/sdl-1.2.12/src/video/riscos/SDL_riscosmouse.c371
1 files changed, 0 insertions, 371 deletions
diff --git a/distrib/sdl-1.2.12/src/video/riscos/SDL_riscosmouse.c b/distrib/sdl-1.2.12/src/video/riscos/SDL_riscosmouse.c
deleted file mode 100644
index 9f364a3..0000000
--- a/distrib/sdl-1.2.12/src/video/riscos/SDL_riscosmouse.c
+++ /dev/null
@@ -1,371 +0,0 @@
-/*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997-2004 Sam Lantinga
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- Sam Lantinga
- slouken@libsdl.org
-*/
-#include "SDL_config.h"
-
-/*
- File added by Alan Buckley (alan_baa@hotmail.com) for RISC OS compatability
- 27 March 2003
-
- Implements mouse cursor shape definitions and positioning
-*/
-
-#include "SDL_mouse.h"
-#include "../../events/SDL_events_c.h"
-
-#include "SDL_riscosmouse_c.h"
-
-#include "kernel.h"
-#include "swis.h"
-
-static WMcursor *current_cursor = NULL;
-static WMcursor *defined_cursor = NULL;
-
-extern int mouseInWindow;
-
-/* Area to save cursor palette colours changed by SDL.
- Actual values will be read before we change to the SDL cursor */
-static Uint8 wimp_cursor_palette[2][5] = {
- {1, 25, 255, 255, 255},
- {3, 25, 255, 255, 255}
-};
-
-static int cursor_palette_saved = 0;
-
-void WIMP_SaveCursorPalette();
-void WIMP_RestoreWimpCursor();
-void WIMP_SetSDLCursorPalette();
-
-
-void RISCOS_FreeWMCursor(_THIS, WMcursor *cursor)
-{
- SDL_free(cursor->data);
- SDL_free(cursor);
-}
-
-WMcursor *RISCOS_CreateWMCursor(_THIS,
- Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
-{
- WMcursor *cursor;
- Uint8 *cursor_data;
- Uint8 *ptr;
- int i,j,k;
- int data_byte, mask_byte;
-
- /* Check to make sure the cursor size is okay */
- if ( (w > 32) || (h > 32) ) {
- SDL_SetError("Only with width and height <= 32 pixels are allowed");
- return(NULL);
- }
-
- /* Allocate the cursor */
- cursor = (WMcursor *)SDL_malloc(sizeof(*cursor));
- if ( cursor == NULL ) {
- SDL_SetError("Out of memory");
- return(NULL);
- }
-
- /* Note: SDL says width must be a multiple of 8 */
- cursor_data = SDL_malloc(w/4 * h);
- if (cursor_data == NULL)
- {
- SDL_free(cursor);
- SDL_SetError("Out of memory");
- return(NULL);
- }
-
- cursor->w = w;
- cursor->h = h;
- cursor->hot_x = hot_x;
- cursor->hot_y = hot_y;
- cursor->data = cursor_data;
-
-
-/* Data / Mask Resulting pixel on screen
- 0 / 1 White
- 1 / 1 Black
- 0 / 0 Transparent
- 1 / 0 Inverted color if possible, black if not.
-*/
- ptr = cursor_data;
-
- for ( i=0; i<h; ++i )
- {
- for (j = 0; j < w/8; ++j)
- {
- data_byte = *data;
- mask_byte = *mask;
- *ptr++ = 0; /* Sets whole byte transparent */
- *ptr = 0;
- for (k = 0; k < 8; k++)
- {
- (*ptr) <<= 2;
- if (data_byte & 1) *ptr |= 3; /* Black or inverted */
- else if(mask_byte & 1) *ptr |= 1; /* White */
- if ((k&3) == 3) ptr--;
- data_byte >>= 1;
- mask_byte >>= 1;
- }
-
- ptr+=3;
- data++;
- mask++;
- }
- }
-
- return(cursor);
-}
-
-int RISCOS_ShowWMCursor(_THIS, WMcursor *cursor)
-{
- current_cursor = cursor;
-
- if (cursor == NULL)
- {
- _kernel_osbyte(106,0,0);
- defined_cursor = NULL;
- } else
- {
- WMcursor *old_cursor = defined_cursor;
-
- if (cursor != defined_cursor)
- {
- Uint8 cursor_def[10];
-
- cursor_def[0] = 0;
- cursor_def[1] = 2; /* Use shape number 2 */
- cursor_def[2] = cursor->w/4; /* Width in bytes */
- cursor_def[3] = cursor->h; /* Height (h) in pixels */
- cursor_def[4] = cursor->hot_x; /* ActiveX in pixels from left */
- cursor_def[5] = cursor->hot_y; /* ActiveY in pixels from top */
- cursor_def[6] = ((int)(cursor->data) & 0xFF); /* Least significant byte of pointer to data */
- cursor_def[7] = ((int)(cursor->data) >> 8) & 0xFF; /* ... */
- cursor_def[8] = ((int)(cursor->data) >> 16) & 0xFF; /* ... */
- cursor_def[9] = ((int)(cursor->data) >> 24) & 0xFF; /* Most significant byte of pointer to data */
-
- if (_kernel_osword(21, (int *)cursor_def) != 0)
- {
- SDL_SetError("RISCOS couldn't create the cursor to show");
- return(0);
- }
- defined_cursor = cursor;
- }
-
- if (old_cursor == NULL)
- {
- /* First time or reshow in window, so save/setup palette */
- if (!cursor_palette_saved)
- {
- WIMP_SaveCursorPalette();
- }
- WIMP_SetSDLCursorPalette();
- }
-
- _kernel_osbyte(106, 2, 0);
- }
-
- return(1);
-}
-
-void FULLSCREEN_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
-{
- Uint8 move_block[5];
- int eig_block[3];
- _kernel_swi_regs regs;
- int os_x, os_y;
-
- eig_block[0] = 4; /* X eig factor */
- eig_block[1] = 5; /* Y eig factor */
- eig_block[2] = -1; /* End of list of variables to request */
-
- regs.r[0] = (int)eig_block;
- regs.r[1] = (int)eig_block;
- _kernel_swi(OS_ReadVduVariables, &regs, &regs);
-
- os_x = x << eig_block[0];
- os_y = y << eig_block[1];
-
- move_block[0] = 3; /* Move cursor */
- move_block[1] = os_x & 0xFF;
- move_block[2] = (os_x >> 8) & 0xFF;
- move_block[3] = os_y & 0xFF;
- move_block[4] = (os_y >> 8) & 0xFF;
-
- _kernel_osword(21, (int *)move_block);
- SDL_PrivateMouseMotion(0, 0, x, y);
-}
-
-
-/* Reshow cursor when mouse re-enters the window */
-void WIMP_ReshowCursor(_THIS)
-{
- defined_cursor = NULL;
- cursor_palette_saved = 0;
- RISCOS_ShowWMCursor(this, current_cursor);
-}
-
-void WIMP_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
-{
- _kernel_swi_regs regs;
- int window_state[9];
- char block[5];
- int osX, osY;
-
- window_state[0] = this->hidden->window_handle;
- regs.r[1] = (unsigned int)window_state;
- _kernel_swi(Wimp_GetWindowState, &regs, &regs);
-
- osX = (x << this->hidden->xeig) + window_state[1];
- osY = window_state[4] - (y << this->hidden->yeig);
-
- block[0] = 3;
- block[1] = osX & 0xFF;
- block[2] = (osX >> 8) & 0xFF;
- block[3] = osY & 0xFF;
- block[4] = (osY >> 8) & 0xFF;
-
- regs.r[0] = 21;
- regs.r[1] = (int)block;
- _kernel_swi(OS_Word, &regs, &regs);
- SDL_PrivateMouseMotion(0, 0, x, y);
-}
-
-int WIMP_ShowWMCursor(_THIS, WMcursor *cursor)
-{
- if (mouseInWindow) return RISCOS_ShowWMCursor(this, cursor);
- else current_cursor = cursor;
-
- return 1;
-}
-
-SDL_GrabMode RISCOS_GrabInput(_THIS, SDL_GrabMode mode)
-{
- /* In fullscreen mode we don't need to do anything */
- if (mode < SDL_GRAB_FULLSCREEN)
- {
- _kernel_swi_regs regs;
- unsigned char block[9];
- block[0] = 1; /* Define mouse cursor bounding block */
-
- if ( mode == SDL_GRAB_OFF )
- {
- /* Clip to whole screen */
-
- int r = (this->hidden->screen_width << this->hidden->xeig) - 1;
- int t = (this->hidden->screen_height << this->hidden->yeig) - 1;
-
- block[1] = 0; block[2] = 0; /* Left*/
- block[3] = 0; block[4] = 0; /* Bottom */
- block[5] = r & 0xFF; block[6] = (r >> 8) & 0xFF; /* Right */
- block[7] = t & 0xFF; block[8] = (t >> 8) & 0xFF; /* Top */
- } else
- {
- /* Clip to window */
- unsigned char window_state[36];
-
- *((int *)window_state) = this->hidden->window_handle;
- regs.r[1] = (unsigned int)window_state;
- _kernel_swi(Wimp_GetWindowState, &regs, &regs);
-
- block[1] = window_state[4];
- block[2] = window_state[5];
- block[3] = window_state[8];
- block[4] = window_state[9];
- block[5] = window_state[12];
- block[6] = window_state[13];
- block[7] = window_state[16];
- block[8] = window_state[17];
-
- }
-
- regs.r[0] = 21; /* OS word code */
- regs.r[1] = (int)block;
- _kernel_swi(OS_Word, &regs, &regs);
- }
-
- return mode;
-}
-
-/* Save mouse cursor palette to be restore when we are no longer
- defining a cursor */
-
-void WIMP_SaveCursorPalette()
-{
- _kernel_swi_regs regs;
- int colour;
-
- for (colour = 0; colour < 2; colour++)
- {
- regs.r[0] = (int)wimp_cursor_palette[colour][0];
- regs.r[1] = 25;
- /* Read settings with OS_ReadPalette */
- if (_kernel_swi(0x2f, &regs, &regs) == NULL)
- {
- wimp_cursor_palette[colour][2] = (unsigned char)((regs.r[2] >> 8) & 0xFF);
- wimp_cursor_palette[colour][3] = (unsigned char)((regs.r[2] >> 16) & 0xFF);
- wimp_cursor_palette[colour][4] = (unsigned char)((regs.r[2] >> 24) & 0xFF);
- }
- }
-
- cursor_palette_saved = 1;
-}
-
-/* Restore the WIMP's cursor when we leave the SDL window */
-void WIMP_RestoreWimpCursor()
-{
- int colour;
-
- /* Reset to pointer shape 1 */
- _kernel_osbyte(106, 1, 0);
-
- /* Reset pointer colours */
- if (cursor_palette_saved)
- {
- for (colour = 0; colour < 2; colour++)
- {
- _kernel_osword(12, (int *)wimp_cursor_palette[colour]);
- }
- }
- cursor_palette_saved = 0;
-}
-
-/* Set palette used for SDL mouse cursors */
-void WIMP_SetSDLCursorPalette()
-{
- /* First time set up the mouse colours */
- Uint8 block[5];
-
- /* Set up colour 1 as white */
- block[0] = 1; /* Colour to change 1 - 3 */
- block[1] = 25; /* Set pointer colour */
- block[2] = 255; /* red component*/
- block[3] = 255; /* green component */
- block[4] = 255; /* blue component*/
- _kernel_osword(12, (int *)block);
-
- /* Set colour 3 to back */
- block[0] = 3; /* Colour to change 1 - 3 */
- block[1] = 25; /* Set pointer colour*/
- block[2] = 0; /* red component*/
- block[3] = 0; /* green component */
- block[4] = 0; /* blue component*/
- _kernel_osword(12, (int *)block);
-}
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