1 files changed, 333 insertions, 0 deletions

diff --git a/Source/external/SDL2/src/video/haiku/SDL_bmodes.cc b/Source/external/SDL2/src/video/haiku/SDL_bmodes.cc
new file mode 100644
index 0000000..9d71996
--- /dev/null
+++ b/Source/external/SDL2/src/video/haiku/SDL_bmodes.cc
@@ -0,0 +1,333 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
+
+  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 */
+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 HAIKU_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 HAIKU_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 = HAIKU_ColorSpaceToBitsPerPixel(bmode->space);
+    mode->format = HAIKU_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 HAIKU_InitModes(_THIS) {
+    BScreen screen;
+
+    /* TODO: When Haiku supports multiple display screens, call
+       _AddDisplayScreen() for each of them. */
+    _AddDisplay(&screen);
+    return 0;
+}
+
+int HAIKU_QuitModes(_THIS) {
+    /* FIXME: Nothing really needs to be done here at the moment? */
+    return 0;
+}
+
+
+int HAIKU_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 HAIKU_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 HAIKU_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");
+    }
+    
+    free(bmode_list);
+    
+#if SDL_VIDEO_OPENGL
+    /* FIXME: Is there some way to reboot the OpenGL context?  This doesn't
+       help */
+//    HAIKU_GL_RebootContexts(_this);
+#endif
+
+    return 0;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SDL_VIDEO_DRIVER_HAIKU */
+
+/* vi: set ts=4 sw=4 expandtab: */