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1 files changed, 176 insertions, 0 deletions

diff --git a/contrib/SDL-3.2.8/src/video/kmsdrm/SDL_kmsdrmvideo.h b/contrib/SDL-3.2.8/src/video/kmsdrm/SDL_kmsdrmvideo.h
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+++ b/contrib/SDL-3.2.8/src/video/kmsdrm/SDL_kmsdrmvideo.h
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+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2025 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"
+
+#ifndef SDL_kmsdrmvideo_h
+#define SDL_kmsdrmvideo_h
+
+#include "../SDL_sysvideo.h"
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+#include <gbm.h>
+#include <EGL/egl.h>
+
+#ifndef DRM_FORMAT_MOD_INVALID
+#define DRM_FORMAT_MOD_INVALID 0x00ffffffffffffffULL
+#endif
+
+#ifndef DRM_MODE_FB_MODIFIERS
+#define DRM_MODE_FB_MODIFIERS   2
+#endif
+
+#ifndef DRM_MODE_PAGE_FLIP_ASYNC
+#define DRM_MODE_PAGE_FLIP_ASYNC    2
+#endif
+
+#ifndef DRM_MODE_OBJECT_CONNECTOR
+#define DRM_MODE_OBJECT_CONNECTOR   0xc0c0c0c0
+#endif
+
+#ifndef DRM_MODE_OBJECT_CRTC
+#define DRM_MODE_OBJECT_CRTC        0xcccccccc
+#endif
+
+#ifndef DRM_CAP_ASYNC_PAGE_FLIP
+#define DRM_CAP_ASYNC_PAGE_FLIP 7
+#endif
+
+#ifndef DRM_CAP_CURSOR_WIDTH
+#define DRM_CAP_CURSOR_WIDTH    8
+#endif
+
+#ifndef DRM_CAP_CURSOR_HEIGHT
+#define DRM_CAP_CURSOR_HEIGHT   9
+#endif
+
+#ifndef GBM_FORMAT_ARGB8888
+#define GBM_FORMAT_ARGB8888  ((uint32_t)('A') | ((uint32_t)('R') << 8) | ((uint32_t)('2') << 16) | ((uint32_t)('4') << 24))
+#define GBM_BO_USE_CURSOR   (1 << 1)
+#define GBM_BO_USE_WRITE    (1 << 3)
+#define GBM_BO_USE_LINEAR   (1 << 4)
+#endif
+
+struct SDL_VideoData
+{
+    int devindex;     // device index that was passed on creation
+    int drm_fd;       // DRM file desc
+    char devpath[32]; // DRM dev path.
+
+    struct gbm_device *gbm_dev;
+
+    bool video_init;             // Has VideoInit succeeded?
+    bool vulkan_mode;            // Are we in Vulkan mode? One VK window is enough to be.
+    bool async_pageflip_support; // Does the hardware support async. pageflips?
+
+    SDL_Window **windows;
+    int max_windows;
+    int num_windows;
+
+    /* Even if we have several displays, we only have to
+       open 1 FD and create 1 gbm device. */
+    bool gbm_init;
+
+};
+
+struct SDL_DisplayModeData
+{
+    int mode_index;
+};
+
+struct SDL_DisplayData
+{
+    drmModeConnector *connector;
+    drmModeCrtc *crtc;
+    drmModeModeInfo mode;
+    drmModeModeInfo original_mode;
+    drmModeModeInfo fullscreen_mode;
+
+    drmModeCrtc *saved_crtc; // CRTC to restore on quit
+    bool saved_vrr;
+
+    /* DRM & GBM cursor stuff lives here, not in an SDL_Cursor's internal struct,
+       because setting/unsetting up these is done on window creation/destruction,
+       where we may not have an SDL_Cursor at all (so no SDL_Cursor internal).
+       There's only one cursor GBM BO because we only support one cursor. */
+    struct gbm_bo *cursor_bo;
+    int cursor_bo_drm_fd;
+    uint64_t cursor_w, cursor_h;
+
+    bool default_cursor_init;
+};
+
+struct SDL_WindowData
+{
+    SDL_VideoData *viddata;
+    /* SDL internals expect EGL surface to be here, and in KMSDRM the GBM surface is
+       what supports the EGL surface on the driver side, so all these surfaces and buffers
+       are expected to be here, in the struct pointed by SDL_Window internal pointer:
+       this one. So don't try to move these to dispdata!  */
+    struct gbm_surface *gs;
+    struct gbm_bo *bo;
+    struct gbm_bo *next_bo;
+
+    bool waiting_for_flip;
+    bool double_buffer;
+
+    EGLSurface egl_surface;
+    bool egl_surface_dirty;
+};
+
+typedef struct KMSDRM_FBInfo
+{
+    int drm_fd;     // DRM file desc
+    uint32_t fb_id; // DRM framebuffer ID
+} KMSDRM_FBInfo;
+
+// Helper functions
+extern bool KMSDRM_CreateSurfaces(SDL_VideoDevice *_this, SDL_Window *window);
+extern KMSDRM_FBInfo *KMSDRM_FBFromBO(SDL_VideoDevice *_this, struct gbm_bo *bo);
+extern KMSDRM_FBInfo *KMSDRM_FBFromBO2(SDL_VideoDevice *_this, struct gbm_bo *bo, int w, int h);
+extern bool KMSDRM_WaitPageflip(SDL_VideoDevice *_this, SDL_WindowData *windata);
+
+/****************************************************************************/
+// SDL_VideoDevice functions declaration
+/****************************************************************************/
+
+// Display and window functions
+extern bool KMSDRM_VideoInit(SDL_VideoDevice *_this);
+extern void KMSDRM_VideoQuit(SDL_VideoDevice *_this);
+extern bool KMSDRM_GetDisplayModes(SDL_VideoDevice *_this, SDL_VideoDisplay *display);
+extern bool KMSDRM_SetDisplayMode(SDL_VideoDevice *_this, SDL_VideoDisplay *display, SDL_DisplayMode *mode);
+extern bool KMSDRM_CreateWindow(SDL_VideoDevice *_this, SDL_Window *window, SDL_PropertiesID create_props);
+extern void KMSDRM_SetWindowTitle(SDL_VideoDevice *_this, SDL_Window *window);
+extern bool KMSDRM_SetWindowPosition(SDL_VideoDevice *_this, SDL_Window *window);
+extern void KMSDRM_SetWindowSize(SDL_VideoDevice *_this, SDL_Window *window);
+extern SDL_FullscreenResult KMSDRM_SetWindowFullscreen(SDL_VideoDevice *_this, SDL_Window *window, SDL_VideoDisplay *_display, SDL_FullscreenOp fullscreen);
+extern void KMSDRM_ShowWindow(SDL_VideoDevice *_this, SDL_Window *window);
+extern void KMSDRM_HideWindow(SDL_VideoDevice *_this, SDL_Window *window);
+extern void KMSDRM_RaiseWindow(SDL_VideoDevice *_this, SDL_Window *window);
+extern void KMSDRM_MaximizeWindow(SDL_VideoDevice *_this, SDL_Window *window);
+extern void KMSDRM_MinimizeWindow(SDL_VideoDevice *_this, SDL_Window *window);
+extern void KMSDRM_RestoreWindow(SDL_VideoDevice *_this, SDL_Window *window);
+extern void KMSDRM_DestroyWindow(SDL_VideoDevice *_this, SDL_Window *window);
+
+#endif // SDL_kmsdrmvideo_h