distrib/sdl2-2.0.3/src/video/haiku/SDL_bmodes.cc - platform/external/qemu - Git at Google

 /*
   Simple DirectMedia Layer
   Copyright (C) 1997-2014 Sam Lantinga <[email protected]>

   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages
   arising from the use of this software.

   Permission is granted to anyone to use this software for any purpose,
   including commercial applications, and to alter it and redistribute it
   freely, subject to the following restrictions:

   1. The origin of this software must not be misrepresented; you must not
      claim that you wrote the original software. If you use this software
      in a product, an acknowledgment in the product documentation would be
      appreciated but is not required.
   2. Altered source versions must be plainly marked as such, and must not be
      misrepresented as being the original software.
   3. This notice may not be removed or altered from any source distribution.
 */
 #include "../../SDL_internal.h"

 #if SDL_VIDEO_DRIVER_HAIKU

 #include <AppKit.h>
 #include <InterfaceKit.h>
 #include "SDL_bmodes.h"
 #include "SDL_BWin.h"

 #if SDL_VIDEO_OPENGL
 #include "SDL_bopengl.h"
 #endif

 #include "../../main/haiku/SDL_BApp.h"

 #ifdef __cplusplus
 extern "C" {
 #endif


 #define WRAP_BMODE 1 /* FIXME: Some debate as to whether this is necessary */

 #if WRAP_BMODE
 /* This wrapper is here so that the driverdata can be freed without freeing
    the display_mode structure */
 typedef struct SDL_DisplayModeData {
 	display_mode *bmode;
 };
 #endif

 static SDL_INLINE SDL_BWin *_ToBeWin(SDL_Window *window) {
 	return ((SDL_BWin*)(window->driverdata));
 }

 static SDL_INLINE SDL_BApp *_GetBeApp() {
 	return ((SDL_BApp*)be_app);
 }

 static SDL_INLINE display_mode * _ExtractBMode(SDL_DisplayMode *mode) {
 #if WRAP_BMODE
 	return ((SDL_DisplayModeData*)mode->driverdata)->bmode;
 #else
 	return (display_mode*)(mode->driverdata);
 #endif
 }

 /* Copied from haiku/trunk/src/preferences/screen/ScreenMode.cpp */
 static float get_refresh_rate(display_mode &mode) {
 	return float(mode.timing.pixel_clock * 1000)
 		/ float(mode.timing.h_total * mode.timing.v_total);
 }


 #if 0
 /* TODO:
  * This is a useful debugging tool.  Uncomment and insert into code as needed.
  */
 void _SpoutModeData(display_mode *bmode) {
 	printf("BMode:\n");
 	printf("\tw,h = (%i,%i)\n", bmode->virtual_width, bmode->virtual_height);
 	printf("\th,v = (%i,%i)\n", bmode->h_display_start,
 			bmode->v_display_start);
 	if(bmode->flags) {
 		printf("\tFlags:\n");
 		if(bmode->flags & B_SCROLL) {
 			printf("\t\tB_SCROLL\n");
 		}
 		if(bmode->flags & B_8_BIT_DAC) {
 			printf("\t\tB_8_BIT_DAC\n");
 		}
 		if(bmode->flags & B_HARDWARE_CURSOR) {
 			printf("\t\tB_HARDWARE_CURSOR\n");
 		}
 		if(bmode->flags & B_PARALLEL_ACCESS) {
 			printf("\t\tB_PARALLEL_ACCESS\n");
 		}
 		if(bmode->flags & B_DPMS) {
 			printf("\t\tB_DPMS\n");
 		}
 		if(bmode->flags & B_IO_FB_NA) {
 			printf("\t\tB_IO_FB_NA\n");
 		}
 	}
 	printf("\tTiming:\n");
 	printf("\t\tpx clock: %i\n", bmode->timing.pixel_clock);
 	printf("\t\th - display: %i sync start: %i sync end: %i total: %i\n",
 		bmode->timing.h_display, bmode->timing.h_sync_start,
 		bmode->timing.h_sync_end, bmode->timing.h_total);
 	printf("\t\tv - display: %i sync start: %i sync end: %i total: %i\n",
 		bmode->timing.v_display, bmode->timing.v_sync_start,
 		bmode->timing.v_sync_end, bmode->timing.v_total);
 	if(bmode->timing.flags) {
 		printf("\t\tFlags:\n");
 		if(bmode->timing.flags & B_BLANK_PEDESTAL) {
 			printf("\t\t\tB_BLANK_PEDESTAL\n");
 		}
 		if(bmode->timing.flags & B_TIMING_INTERLACED) {
 			printf("\t\t\tB_TIMING_INTERLACED\n");
 		}
 		if(bmode->timing.flags & B_POSITIVE_HSYNC) {
 			printf("\t\t\tB_POSITIVE_HSYNC\n");
 		}
 		if(bmode->timing.flags & B_POSITIVE_VSYNC) {
 			printf("\t\t\tB_POSITIVE_VSYNC\n");
 		}
 		if(bmode->timing.flags & B_SYNC_ON_GREEN) {
 			printf("\t\t\tB_SYNC_ON_GREEN\n");
 		}
 	}
 }
 #endif


 int32 BE_ColorSpaceToBitsPerPixel(uint32 colorspace)
 {
 	int bitsperpixel;

 	bitsperpixel = 0;
 	switch (colorspace) {
 	    case B_CMAP8:
 		bitsperpixel = 8;
 		break;
 	    case B_RGB15:
 	    case B_RGBA15:
 	    case B_RGB15_BIG:
 	    case B_RGBA15_BIG:
 		bitsperpixel = 15;
 		break;
 	    case B_RGB16:
 	    case B_RGB16_BIG:
 		bitsperpixel = 16;
 		break;
 	    case B_RGB32:
 	    case B_RGBA32:
 	    case B_RGB32_BIG:
 	    case B_RGBA32_BIG:
 		bitsperpixel = 32;
 		break;
 	    default:
 		break;
 	}
 	return(bitsperpixel);
 }

 int32 BE_BPPToSDLPxFormat(int32 bpp) {
 	/* Translation taken from SDL_windowsmodes.c */
 	switch (bpp) {
 	case 32:
 		return SDL_PIXELFORMAT_RGB888;
 		break;
 	case 24:	/* May not be supported by Haiku */
 		return SDL_PIXELFORMAT_RGB24;
 		break;
 	case 16:
 		return SDL_PIXELFORMAT_RGB565;
 		break;
 	case 15:
 		return SDL_PIXELFORMAT_RGB555;
 		break;
 	case 8:
 		return SDL_PIXELFORMAT_INDEX8;
 		break;
 	case 4:		/* May not be supported by Haiku */
 		return SDL_PIXELFORMAT_INDEX4LSB;
 		break;
 	}

 	/* May never get here, but safer and needed to shut up compiler */
 	SDL_SetError("Invalid bpp value");
 	return 0;
 }

 static void _BDisplayModeToSdlDisplayMode(display_mode *bmode,
 		SDL_DisplayMode *mode) {
 	mode->w = bmode->virtual_width;
 	mode->h = bmode->virtual_height;
 	mode->refresh_rate = (int)get_refresh_rate(*bmode);

 #if WRAP_BMODE
 	SDL_DisplayModeData *data = (SDL_DisplayModeData*)SDL_calloc(1,
 		sizeof(SDL_DisplayModeData));
 	data->bmode = bmode;

 	mode->driverdata = data;

 #else

 	mode->driverdata = bmode;
 #endif

 	/* Set the format */
 	int32 bpp = BE_ColorSpaceToBitsPerPixel(bmode->space);
 	mode->format = BE_BPPToSDLPxFormat(bpp);
 }

 /* Later, there may be more than one monitor available */
 static void _AddDisplay(BScreen *screen) {
 	SDL_VideoDisplay display;
 	SDL_DisplayMode *mode = (SDL_DisplayMode*)SDL_calloc(1,
 		sizeof(SDL_DisplayMode));
 	display_mode *bmode = (display_mode*)SDL_calloc(1, sizeof(display_mode));
 	screen->GetMode(bmode);

 	_BDisplayModeToSdlDisplayMode(bmode, mode);

 	SDL_zero(display);
 	display.desktop_mode = *mode;
 	display.current_mode = *mode;

 	SDL_AddVideoDisplay(&display);
 }

 /*
  * Functions called by SDL
  */

 int BE_InitModes(_THIS) {
 	BScreen screen;

 	/* TODO: When Haiku supports multiple display screens, call
 	   _AddDisplayScreen() for each of them. */
 	_AddDisplay(&screen);
 	return 0;
 }

 int BE_QuitModes(_THIS) {
 	/* FIXME: Nothing really needs to be done here at the moment? */
 	return 0;
 }


 int BE_GetDisplayBounds(_THIS, SDL_VideoDisplay *display, SDL_Rect *rect) {
 	BScreen bscreen;
 	BRect rc = bscreen.Frame();
 	rect->x = (int)rc.left;
 	rect->y = (int)rc.top;
 	rect->w = (int)rc.Width() + 1;
 	rect->h = (int)rc.Height() + 1;
 	return 0;
 }

 void BE_GetDisplayModes(_THIS, SDL_VideoDisplay *display) {
 	/* Get the current screen */
 	BScreen bscreen;

 	/* Iterate through all of the modes */
 	SDL_DisplayMode mode;
 	display_mode this_bmode;
 	display_mode *bmodes;
 	uint32 count, i;

 	/* Get graphics-hardware supported modes */
 	bscreen.GetModeList(&bmodes, &count);
 	bscreen.GetMode(&this_bmode);

 	for(i = 0; i < count; ++i) {
 		// FIXME: Apparently there are errors with colorspace changes
 		if (bmodes[i].space == this_bmode.space) {
 			_BDisplayModeToSdlDisplayMode(&bmodes[i], &mode);
 			SDL_AddDisplayMode(display, &mode);
 		}
 	}
 	free(bmodes);
 }


 int BE_SetDisplayMode(_THIS, SDL_VideoDisplay *display, SDL_DisplayMode *mode){
 	/* Get the current screen */
 	BScreen bscreen;
 	if(!bscreen.IsValid()) {
 		printf(__FILE__": %d - ERROR: BAD SCREEN\n", __LINE__);
 	}

 	/* Set the mode using the driver data */
 	display_mode *bmode = _ExtractBMode(mode);


 	/* FIXME: Is the first option always going to be the right one? */
 	uint32 c = 0, i;
 	display_mode *bmode_list;
 	bscreen.GetModeList(&bmode_list, &c);
 	for(i = 0; i < c; ++i) {
 		if(	bmode_list[i].space == bmode->space &&
 			bmode_list[i].virtual_width == bmode->virtual_width &&
 			bmode_list[i].virtual_height == bmode->virtual_height ) {
 				bmode = &bmode_list[i];
 				break;
 		}
 	}

 	if(bscreen.SetMode(bmode) != B_OK) {
 		return SDL_SetError("Bad video mode\n");
 	}

 	free(bmode_list);

 #if SDL_VIDEO_OPENGL
 	/* FIXME: Is there some way to reboot the OpenGL context?  This doesn't
 	   help */
 //	BE_GL_RebootContexts(_this);
 #endif

 	return 0;
 }

 #ifdef __cplusplus
 }
 #endif

 #endif /* SDL_VIDEO_DRIVER_HAIKU */
	/*
	Simple DirectMedia Layer
	Copyright (C) 1997-2014 Sam Lantinga <[email protected]>

	This software is provided 'as-is', without any express or implied
	warranty. In no event will the authors be held liable for any damages
	arising from the use of this software.

	Permission is granted to anyone to use this software for any purpose,
	including commercial applications, and to alter it and redistribute it
	freely, subject to the following restrictions:

	1. The origin of this software must not be misrepresented; you must not
	claim that you wrote the original software. If you use this software
	in a product, an acknowledgment in the product documentation would be
	appreciated but is not required.
	2. Altered source versions must be plainly marked as such, and must not be
	misrepresented as being the original software.
	3. This notice may not be removed or altered from any source distribution.
	*/
	#include "../../SDL_internal.h"

	#if SDL_VIDEO_DRIVER_HAIKU

	#include <AppKit.h>
	#include <InterfaceKit.h>
	#include "SDL_bmodes.h"
	#include "SDL_BWin.h"

	#if SDL_VIDEO_OPENGL
	#include "SDL_bopengl.h"
	#endif

	#include "../../main/haiku/SDL_BApp.h"

	#ifdef __cplusplus
	extern "C" {
	#endif


	#define WRAP_BMODE 1 /* FIXME: Some debate as to whether this is necessary */

	#if WRAP_BMODE
	/* This wrapper is here so that the driverdata can be freed without freeing
	the display_mode structure */
	typedef struct SDL_DisplayModeData {
	display_mode *bmode;
	};
	#endif

	static SDL_INLINE SDL_BWin _ToBeWin(SDL_Window window) {
	return ((SDL_BWin*)(window->driverdata));
	}

	static SDL_INLINE SDL_BApp *_GetBeApp() {
	return ((SDL_BApp*)be_app);
	}

	static SDL_INLINE display_mode * _ExtractBMode(SDL_DisplayMode *mode) {
	#if WRAP_BMODE
	return ((SDL_DisplayModeData*)mode->driverdata)->bmode;
	#else
	return (display_mode*)(mode->driverdata);
	#endif
	}

	/* Copied from haiku/trunk/src/preferences/screen/ScreenMode.cpp */
	static float get_refresh_rate(display_mode &mode) {
	return float(mode.timing.pixel_clock * 1000)
	/ float(mode.timing.h_total * mode.timing.v_total);
	}


	#if 0
	/* TODO:
	* This is a useful debugging tool. Uncomment and insert into code as needed.
	*/
	void _SpoutModeData(display_mode *bmode) {
	printf("BMode:\n");
	printf("\tw,h = (%i,%i)\n", bmode->virtual_width, bmode->virtual_height);
	printf("\th,v = (%i,%i)\n", bmode->h_display_start,
	bmode->v_display_start);
	if(bmode->flags) {
	printf("\tFlags:\n");
	if(bmode->flags & B_SCROLL) {
	printf("\t\tB_SCROLL\n");
	}
	if(bmode->flags & B_8_BIT_DAC) {
	printf("\t\tB_8_BIT_DAC\n");
	}
	if(bmode->flags & B_HARDWARE_CURSOR) {
	printf("\t\tB_HARDWARE_CURSOR\n");
	}
	if(bmode->flags & B_PARALLEL_ACCESS) {
	printf("\t\tB_PARALLEL_ACCESS\n");
	}
	if(bmode->flags & B_DPMS) {
	printf("\t\tB_DPMS\n");
	}
	if(bmode->flags & B_IO_FB_NA) {
	printf("\t\tB_IO_FB_NA\n");
	}
	}
	printf("\tTiming:\n");
	printf("\t\tpx clock: %i\n", bmode->timing.pixel_clock);
	printf("\t\th - display: %i sync start: %i sync end: %i total: %i\n",
	bmode->timing.h_display, bmode->timing.h_sync_start,
	bmode->timing.h_sync_end, bmode->timing.h_total);
	printf("\t\tv - display: %i sync start: %i sync end: %i total: %i\n",
	bmode->timing.v_display, bmode->timing.v_sync_start,
	bmode->timing.v_sync_end, bmode->timing.v_total);
	if(bmode->timing.flags) {
	printf("\t\tFlags:\n");
	if(bmode->timing.flags & B_BLANK_PEDESTAL) {
	printf("\t\t\tB_BLANK_PEDESTAL\n");
	}
	if(bmode->timing.flags & B_TIMING_INTERLACED) {
	printf("\t\t\tB_TIMING_INTERLACED\n");
	}
	if(bmode->timing.flags & B_POSITIVE_HSYNC) {
	printf("\t\t\tB_POSITIVE_HSYNC\n");
	}
	if(bmode->timing.flags & B_POSITIVE_VSYNC) {
	printf("\t\t\tB_POSITIVE_VSYNC\n");
	}
	if(bmode->timing.flags & B_SYNC_ON_GREEN) {
	printf("\t\t\tB_SYNC_ON_GREEN\n");
	}
	}
	}
	#endif



	int32 BE_ColorSpaceToBitsPerPixel(uint32 colorspace)
	{
	int bitsperpixel;

	bitsperpixel = 0;
	switch (colorspace) {
	case B_CMAP8:
	bitsperpixel = 8;
	break;
	case B_RGB15:
	case B_RGBA15:
	case B_RGB15_BIG:
	case B_RGBA15_BIG:
	bitsperpixel = 15;
	break;
	case B_RGB16:
	case B_RGB16_BIG:
	bitsperpixel = 16;
	break;
	case B_RGB32:
	case B_RGBA32:
	case B_RGB32_BIG:
	case B_RGBA32_BIG:
	bitsperpixel = 32;
	break;
	default:
	break;
	}
	return(bitsperpixel);
	}

	int32 BE_BPPToSDLPxFormat(int32 bpp) {
	/* Translation taken from SDL_windowsmodes.c */
	switch (bpp) {
	case 32:
	return SDL_PIXELFORMAT_RGB888;
	break;
	case 24: /* May not be supported by Haiku */
	return SDL_PIXELFORMAT_RGB24;
	break;
	case 16:
	return SDL_PIXELFORMAT_RGB565;
	break;
	case 15:
	return SDL_PIXELFORMAT_RGB555;
	break;
	case 8:
	return SDL_PIXELFORMAT_INDEX8;
	break;
	case 4: /* May not be supported by Haiku */
	return SDL_PIXELFORMAT_INDEX4LSB;
	break;
	}

	/* May never get here, but safer and needed to shut up compiler */
	SDL_SetError("Invalid bpp value");
	return 0;
	}

	static void _BDisplayModeToSdlDisplayMode(display_mode *bmode,
	SDL_DisplayMode *mode) {
	mode->w = bmode->virtual_width;
	mode->h = bmode->virtual_height;
	mode->refresh_rate = (int)get_refresh_rate(*bmode);

	#if WRAP_BMODE
	SDL_DisplayModeData data = (SDL_DisplayModeData)SDL_calloc(1,
	sizeof(SDL_DisplayModeData));
	data->bmode = bmode;

	mode->driverdata = data;

	#else

	mode->driverdata = bmode;
	#endif

	/* Set the format */
	int32 bpp = BE_ColorSpaceToBitsPerPixel(bmode->space);
	mode->format = BE_BPPToSDLPxFormat(bpp);
	}

	/* Later, there may be more than one monitor available */
	static void _AddDisplay(BScreen *screen) {
	SDL_VideoDisplay display;
	SDL_DisplayMode mode = (SDL_DisplayMode)SDL_calloc(1,
	sizeof(SDL_DisplayMode));
	display_mode bmode = (display_mode)SDL_calloc(1, sizeof(display_mode));
	screen->GetMode(bmode);

	_BDisplayModeToSdlDisplayMode(bmode, mode);

	SDL_zero(display);
	display.desktop_mode = *mode;
	display.current_mode = *mode;

	SDL_AddVideoDisplay(&display);
	}

	/*
	* Functions called by SDL
	*/

	int BE_InitModes(_THIS) {
	BScreen screen;

	/* TODO: When Haiku supports multiple display screens, call
	_AddDisplayScreen() for each of them. */
	_AddDisplay(&screen);
	return 0;
	}

	int BE_QuitModes(_THIS) {
	/* FIXME: Nothing really needs to be done here at the moment? */
	return 0;
	}


	int BE_GetDisplayBounds(_THIS, SDL_VideoDisplay display, SDL_Rect rect) {
	BScreen bscreen;
	BRect rc = bscreen.Frame();
	rect->x = (int)rc.left;
	rect->y = (int)rc.top;
	rect->w = (int)rc.Width() + 1;
	rect->h = (int)rc.Height() + 1;
	return 0;
	}

	void BE_GetDisplayModes(_THIS, SDL_VideoDisplay *display) {
	/* Get the current screen */
	BScreen bscreen;

	/* Iterate through all of the modes */
	SDL_DisplayMode mode;
	display_mode this_bmode;
	display_mode *bmodes;
	uint32 count, i;

	/* Get graphics-hardware supported modes */
	bscreen.GetModeList(&bmodes, &count);
	bscreen.GetMode(&this_bmode);

	for(i = 0; i < count; ++i) {
	// FIXME: Apparently there are errors with colorspace changes
	if (bmodes[i].space == this_bmode.space) {
	_BDisplayModeToSdlDisplayMode(&bmodes[i], &mode);
	SDL_AddDisplayMode(display, &mode);
	}
	}
	free(bmodes);
	}


	int BE_SetDisplayMode(_THIS, SDL_VideoDisplay display, SDL_DisplayMode mode){
	/* Get the current screen */
	BScreen bscreen;
	if(!bscreen.IsValid()) {
	printf(__FILE__": %d - ERROR: BAD SCREEN\n", __LINE__);
	}

	/* Set the mode using the driver data */
	display_mode *bmode = _ExtractBMode(mode);


	/* FIXME: Is the first option always going to be the right one? */
	uint32 c = 0, i;
	display_mode *bmode_list;
	bscreen.GetModeList(&bmode_list, &c);
	for(i = 0; i < c; ++i) {
	if( bmode_list[i].space == bmode->space &&
	bmode_list[i].virtual_width == bmode->virtual_width &&
	bmode_list[i].virtual_height == bmode->virtual_height ) {
	bmode = &bmode_list[i];
	break;
	}
	}

	if(bscreen.SetMode(bmode) != B_OK) {
	return SDL_SetError("Bad video mode\n");
	}

	free(bmode_list);

	#if SDL_VIDEO_OPENGL
	/* FIXME: Is there some way to reboot the OpenGL context? This doesn't
	help */
	// BE_GL_RebootContexts(_this);
	#endif

	return 0;
	}

	#ifdef __cplusplus
	}
	#endif

	#endif /* SDL_VIDEO_DRIVER_HAIKU */