mirror of
https://github.com/Relintai/sdl2_frt.git
synced 2024-12-20 22:16:49 +01:00
334 lines
8.1 KiB
C++
334 lines
8.1 KiB
C++
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#if SDL_VIDEO_DRIVER_HAIKU
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#include <AppKit.h>
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#include <InterfaceKit.h>
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#include "SDL_bmodes.h"
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#include "SDL_BWin.h"
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#if SDL_VIDEO_OPENGL
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#include "SDL_bopengl.h"
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#endif
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#include "../../main/haiku/SDL_BApp.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define WRAP_BMODE 1 /* FIXME: Some debate as to whether this is necessary */
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#if WRAP_BMODE
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/* This wrapper is here so that the driverdata can be freed without freeing
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the display_mode structure */
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struct SDL_DisplayModeData {
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display_mode *bmode;
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};
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#endif
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static SDL_INLINE SDL_BWin *_ToBeWin(SDL_Window *window) {
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return ((SDL_BWin*)(window->driverdata));
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}
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static SDL_INLINE SDL_BApp *_GetBeApp() {
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return ((SDL_BApp*)be_app);
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}
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static SDL_INLINE display_mode * _ExtractBMode(SDL_DisplayMode *mode) {
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#if WRAP_BMODE
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return ((SDL_DisplayModeData*)mode->driverdata)->bmode;
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#else
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return (display_mode*)(mode->driverdata);
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#endif
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}
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/* Copied from haiku/trunk/src/preferences/screen/ScreenMode.cpp */
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static float get_refresh_rate(display_mode &mode) {
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return float(mode.timing.pixel_clock * 1000)
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/ float(mode.timing.h_total * mode.timing.v_total);
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}
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#if 0
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/* TODO:
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* This is a useful debugging tool. Uncomment and insert into code as needed.
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*/
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void _SpoutModeData(display_mode *bmode) {
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printf("BMode:\n");
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printf("\tw,h = (%i,%i)\n", bmode->virtual_width, bmode->virtual_height);
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printf("\th,v = (%i,%i)\n", bmode->h_display_start,
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bmode->v_display_start);
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if(bmode->flags) {
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printf("\tFlags:\n");
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if(bmode->flags & B_SCROLL) {
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printf("\t\tB_SCROLL\n");
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}
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if(bmode->flags & B_8_BIT_DAC) {
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printf("\t\tB_8_BIT_DAC\n");
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}
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if(bmode->flags & B_HARDWARE_CURSOR) {
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printf("\t\tB_HARDWARE_CURSOR\n");
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}
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if(bmode->flags & B_PARALLEL_ACCESS) {
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printf("\t\tB_PARALLEL_ACCESS\n");
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}
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if(bmode->flags & B_DPMS) {
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printf("\t\tB_DPMS\n");
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}
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if(bmode->flags & B_IO_FB_NA) {
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printf("\t\tB_IO_FB_NA\n");
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}
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}
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printf("\tTiming:\n");
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printf("\t\tpx clock: %i\n", bmode->timing.pixel_clock);
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printf("\t\th - display: %i sync start: %i sync end: %i total: %i\n",
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bmode->timing.h_display, bmode->timing.h_sync_start,
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bmode->timing.h_sync_end, bmode->timing.h_total);
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printf("\t\tv - display: %i sync start: %i sync end: %i total: %i\n",
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bmode->timing.v_display, bmode->timing.v_sync_start,
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bmode->timing.v_sync_end, bmode->timing.v_total);
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if(bmode->timing.flags) {
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printf("\t\tFlags:\n");
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if(bmode->timing.flags & B_BLANK_PEDESTAL) {
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printf("\t\t\tB_BLANK_PEDESTAL\n");
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}
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if(bmode->timing.flags & B_TIMING_INTERLACED) {
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printf("\t\t\tB_TIMING_INTERLACED\n");
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}
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if(bmode->timing.flags & B_POSITIVE_HSYNC) {
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printf("\t\t\tB_POSITIVE_HSYNC\n");
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}
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if(bmode->timing.flags & B_POSITIVE_VSYNC) {
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printf("\t\t\tB_POSITIVE_VSYNC\n");
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}
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if(bmode->timing.flags & B_SYNC_ON_GREEN) {
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printf("\t\t\tB_SYNC_ON_GREEN\n");
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}
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}
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}
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#endif
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int32 BE_ColorSpaceToBitsPerPixel(uint32 colorspace)
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{
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int bitsperpixel;
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bitsperpixel = 0;
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switch (colorspace) {
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case B_CMAP8:
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bitsperpixel = 8;
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break;
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case B_RGB15:
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case B_RGBA15:
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case B_RGB15_BIG:
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case B_RGBA15_BIG:
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bitsperpixel = 15;
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break;
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case B_RGB16:
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case B_RGB16_BIG:
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bitsperpixel = 16;
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break;
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case B_RGB32:
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case B_RGBA32:
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case B_RGB32_BIG:
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case B_RGBA32_BIG:
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bitsperpixel = 32;
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break;
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default:
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break;
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}
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return(bitsperpixel);
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}
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int32 BE_BPPToSDLPxFormat(int32 bpp) {
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/* Translation taken from SDL_windowsmodes.c */
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switch (bpp) {
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case 32:
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return SDL_PIXELFORMAT_RGB888;
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break;
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case 24: /* May not be supported by Haiku */
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return SDL_PIXELFORMAT_RGB24;
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break;
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case 16:
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return SDL_PIXELFORMAT_RGB565;
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break;
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case 15:
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return SDL_PIXELFORMAT_RGB555;
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break;
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case 8:
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return SDL_PIXELFORMAT_INDEX8;
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break;
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case 4: /* May not be supported by Haiku */
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return SDL_PIXELFORMAT_INDEX4LSB;
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break;
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}
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/* May never get here, but safer and needed to shut up compiler */
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SDL_SetError("Invalid bpp value");
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return 0;
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}
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static void _BDisplayModeToSdlDisplayMode(display_mode *bmode,
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SDL_DisplayMode *mode) {
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mode->w = bmode->virtual_width;
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mode->h = bmode->virtual_height;
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mode->refresh_rate = (int)get_refresh_rate(*bmode);
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#if WRAP_BMODE
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SDL_DisplayModeData *data = (SDL_DisplayModeData*)SDL_calloc(1,
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sizeof(SDL_DisplayModeData));
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data->bmode = bmode;
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mode->driverdata = data;
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#else
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mode->driverdata = bmode;
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#endif
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/* Set the format */
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int32 bpp = BE_ColorSpaceToBitsPerPixel(bmode->space);
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mode->format = BE_BPPToSDLPxFormat(bpp);
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}
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/* Later, there may be more than one monitor available */
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static void _AddDisplay(BScreen *screen) {
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SDL_VideoDisplay display;
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SDL_DisplayMode *mode = (SDL_DisplayMode*)SDL_calloc(1,
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sizeof(SDL_DisplayMode));
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display_mode *bmode = (display_mode*)SDL_calloc(1, sizeof(display_mode));
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screen->GetMode(bmode);
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_BDisplayModeToSdlDisplayMode(bmode, mode);
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SDL_zero(display);
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display.desktop_mode = *mode;
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display.current_mode = *mode;
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SDL_AddVideoDisplay(&display);
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}
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/*
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* Functions called by SDL
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*/
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int BE_InitModes(_THIS) {
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BScreen screen;
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/* TODO: When Haiku supports multiple display screens, call
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_AddDisplayScreen() for each of them. */
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_AddDisplay(&screen);
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return 0;
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}
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int BE_QuitModes(_THIS) {
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/* FIXME: Nothing really needs to be done here at the moment? */
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return 0;
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}
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int BE_GetDisplayBounds(_THIS, SDL_VideoDisplay *display, SDL_Rect *rect) {
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BScreen bscreen;
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BRect rc = bscreen.Frame();
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rect->x = (int)rc.left;
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rect->y = (int)rc.top;
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rect->w = (int)rc.Width() + 1;
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rect->h = (int)rc.Height() + 1;
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return 0;
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}
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void BE_GetDisplayModes(_THIS, SDL_VideoDisplay *display) {
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/* Get the current screen */
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BScreen bscreen;
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/* Iterate through all of the modes */
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SDL_DisplayMode mode;
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display_mode this_bmode;
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display_mode *bmodes;
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uint32 count, i;
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/* Get graphics-hardware supported modes */
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bscreen.GetModeList(&bmodes, &count);
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bscreen.GetMode(&this_bmode);
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for(i = 0; i < count; ++i) {
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// FIXME: Apparently there are errors with colorspace changes
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if (bmodes[i].space == this_bmode.space) {
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_BDisplayModeToSdlDisplayMode(&bmodes[i], &mode);
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SDL_AddDisplayMode(display, &mode);
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}
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}
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free(bmodes);
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}
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int BE_SetDisplayMode(_THIS, SDL_VideoDisplay *display, SDL_DisplayMode *mode){
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/* Get the current screen */
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BScreen bscreen;
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if(!bscreen.IsValid()) {
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printf(__FILE__": %d - ERROR: BAD SCREEN\n", __LINE__);
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}
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/* Set the mode using the driver data */
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display_mode *bmode = _ExtractBMode(mode);
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/* FIXME: Is the first option always going to be the right one? */
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uint32 c = 0, i;
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display_mode *bmode_list;
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bscreen.GetModeList(&bmode_list, &c);
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for(i = 0; i < c; ++i) {
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if( bmode_list[i].space == bmode->space &&
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bmode_list[i].virtual_width == bmode->virtual_width &&
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bmode_list[i].virtual_height == bmode->virtual_height ) {
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bmode = &bmode_list[i];
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break;
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}
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}
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if(bscreen.SetMode(bmode) != B_OK) {
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return SDL_SetError("Bad video mode");
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}
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free(bmode_list);
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#if SDL_VIDEO_OPENGL
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/* FIXME: Is there some way to reboot the OpenGL context? This doesn't
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help */
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// BE_GL_RebootContexts(_this);
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#endif
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return 0;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* SDL_VIDEO_DRIVER_HAIKU */
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/* vi: set ts=4 sw=4 expandtab: */
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