Mercurial > sdl-ios-xcode
view src/video/photon/SDL_ph_mouse.c @ 1982:3b4ce57c6215
First shot at new audio data types (int32 and float32).
Notable changes:
- Converters between types are autogenerated. Instead of making multiple
passes over the data with seperate filters for endianess, size, signedness,
etc, converting between data types is always one specialized filter. This
simplifies SDL_BuildAudioCVT(), which otherwise had a million edge cases
with the new types, and makes the actually conversions more CPU cache
friendly. Left a stub for adding specific optimized versions of these
routines (SSE/MMX/Altivec, assembler, etc)
- Autogenerated converters are built by SDL/src/audio/sdlgenaudiocvt.pl. This
does not need to be run unless tweaking the code, and thus doesn't need
integration into the build system.
- Went through all the drivers and tried to weed out all the "Uint16"
references that are better specified with the new SDL_AudioFormat typedef.
- Cleaned out a bunch of hardcoded bitwise magic numbers and replaced them
with new SDL_AUDIO_* macros.
- Added initial float32 and int32 support code. Theoretically, existing
drivers will push these through converters to get the data they want to
feed to the hardware.
Still TODO:
- Optimize and debug new converters.
- Update the CoreAudio backend to accept float32 data directly.
- Other backends, too?
- SDL_LoadWAV() needs to be updated to support int32 and float32 .wav files
(both of which exist and can be generated by 'sox' for testing purposes).
- Update the mixer to handle new datatypes.
- Optionally update SDL_sound and SDL_mixer, etc.
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Thu, 24 Aug 2006 12:10:46 +0000 |
parents | c121d94672cb |
children | 99210400e8b9 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2006 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #include "SDL_mouse.h" #include "../../events/SDL_events_c.h" #include "../SDL_cursor_c.h" #include "SDL_ph_mouse_c.h" struct WMcursor { PhCursorDef_t *ph_cursor; }; void ph_FreeWMCursor(_THIS, WMcursor * cursor) { if (window != NULL) { SDL_Lock_EventThread(); if (PtSetResource(window, Pt_ARG_CURSOR_TYPE, Ph_CURSOR_INHERIT, 0) < 0) { /* TODO: output error msg */ } SDL_Unlock_EventThread(); } SDL_free(cursor); } WMcursor * ph_CreateWMCursor(_THIS, Uint8 * data, Uint8 * mask, int w, int h, int hot_x, int hot_y) { WMcursor *cursor; int clen, i; unsigned char bit, databit, maskbit; /* Allocate and initialize the cursor memory */ if ((cursor = (WMcursor *) SDL_malloc(sizeof(WMcursor))) == NULL) { SDL_OutOfMemory(); return (NULL); } SDL_memset(cursor, 0, sizeof(WMcursor)); cursor->ph_cursor = (PhCursorDef_t *) SDL_malloc(sizeof(PhCursorDef_t) + 32 * 4 * 2); if (cursor->ph_cursor == NULL) { SDL_SetError("ph_CreateWMCursor(): cursor malloc failed !\n"); return NULL; } SDL_memset(cursor->ph_cursor, 0, (sizeof(PhCursorDef_t) + 32 * 4 * 2)); cursor->ph_cursor->hdr.type = Ph_RDATA_CURSOR; cursor->ph_cursor->size1.x = (short) w; cursor->ph_cursor->size1.y = (short) h; cursor->ph_cursor->offset1.x = (short) hot_x; cursor->ph_cursor->offset1.y = (short) hot_y; cursor->ph_cursor->bytesperline1 = (char) w / 8; cursor->ph_cursor->color1 = Pg_WHITE; cursor->ph_cursor->size2.x = (short) w; cursor->ph_cursor->size2.y = (short) h; cursor->ph_cursor->offset2.x = (short) hot_x; cursor->ph_cursor->offset2.y = (short) hot_y; cursor->ph_cursor->bytesperline2 = (char) w / 8; cursor->ph_cursor->color2 = Pg_BLACK; clen = (w / 8) * h; /* Copy the mask and the data to different bitmap planes */ for (i = 0; i < clen; ++i) { for (bit = 0; bit < 8; bit++) { databit = data[i] & (1 << bit); maskbit = mask[i] & (1 << bit); cursor->ph_cursor->images[i] |= (databit == 0) ? maskbit : 0; /* If the databit != 0, treat it as a black pixel and * ignore the maskbit (can't do an inverted color) */ cursor->ph_cursor->images[i + clen] |= databit; } } /* #bytes following the hdr struct */ cursor->ph_cursor->hdr.len = sizeof(PhCursorDef_t) + clen * 2 - sizeof(PhRegionDataHdr_t); return (cursor); } PhCursorDef_t ph_GetWMPhCursor(WMcursor * cursor) { return (*cursor->ph_cursor); } int ph_ShowWMCursor(_THIS, WMcursor * cursor) { PtArg_t args[3]; int nargs = 0; /* Don't do anything if the display is gone */ if (window == NULL) { return (0); } /* looks like photon can't draw mouse cursor in direct mode */ if (this->screen->flags & SDL_FULLSCREEN) { /* disable the fake mouse in the fullscreen OpenGL mode */ if (this->screen->flags & SDL_INTERNALOPENGL) { cursor = NULL; } else { return (0); } } /* Set the photon cursor, or blank if cursor is NULL */ if (cursor != NULL) { PtSetArg(&args[0], Pt_ARG_CURSOR_TYPE, Ph_CURSOR_BITMAP, 0); /* Could set next to any PgColor_t value */ PtSetArg(&args[1], Pt_ARG_CURSOR_COLOR, Ph_CURSOR_DEFAULT_COLOR, 0); PtSetArg(&args[2], Pt_ARG_BITMAP_CURSOR, cursor->ph_cursor, (cursor->ph_cursor->hdr.len + sizeof(PhRegionDataHdr_t))); nargs = 3; } else { /* Ph_CURSOR_NONE */ PtSetArg(&args[0], Pt_ARG_CURSOR_TYPE, Ph_CURSOR_NONE, 0); nargs = 1; } SDL_Lock_EventThread(); if (PtSetResources(window, nargs, args) < 0) { return (0); } SDL_Unlock_EventThread(); return (1); } void ph_WarpWMCursor(_THIS, Uint16 x, Uint16 y) { short abs_x, abs_y; SDL_Lock_EventThread(); PtGetAbsPosition(window, &abs_x, &abs_y); PhMoveCursorAbs(PhInputGroup(NULL), x + abs_x, y + abs_y); SDL_Unlock_EventThread(); } void ph_CheckMouseMode(_THIS) { /* If the mouse is hidden and input is grabbed, we use relative mode */ if (!(SDL_cursorstate & CURSOR_VISIBLE) && (this->input_grab != SDL_GRAB_OFF)) { mouse_relative = 1; } else { mouse_relative = 0; } } void ph_UpdateMouse(_THIS) { PhCursorInfo_t phcursor; short abs_x; short abs_y; /* Lock the event thread, in multi-threading environments */ SDL_Lock_EventThread(); /* synchronizing photon mouse cursor position and SDL mouse position, if cursor appears over window. */ PtGetAbsPosition(window, &abs_x, &abs_y); PhQueryCursor(PhInputGroup(NULL), &phcursor); if (((phcursor.pos.x >= abs_x) && (phcursor.pos.x <= abs_x + this->screen->w)) && ((phcursor.pos.y >= abs_y) && (phcursor.pos.y <= abs_y + this->screen->h))) { SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS); SDL_PrivateMouseMotion(0, 0, phcursor.pos.x - abs_x, phcursor.pos.y - abs_y); } else { SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS); } /* Unlock the event thread, in multi-threading environments */ SDL_Unlock_EventThread(); } /* vi: set ts=4 sw=4 expandtab: */