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early-access version 1617

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pineappleEA
2021-04-20 21:40:33 +02:00
parent 242b6f6b49
commit f46563104f
510 changed files with 141726 additions and 62846 deletions
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externals/SDL/src/video/kmsdrm/SDL_kmsdrmdyn.c
Vendored
+1 -3
View File
@@ -1,6 +1,7 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
Atomic KMSDRM backend by Manuel Alfayate Corchete <redwindwanderer@gmail.com>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
@@ -27,9 +28,6 @@
#include "SDL_kmsdrmdyn.h"
#if DEBUG_DYNAMIC_KMSDRM
#include "SDL_log.h"
#endif
#ifdef SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC
externals/SDL/src/video/kmsdrm/SDL_kmsdrmdyn.h
Vendored
+1
View File
@@ -1,6 +1,7 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
Atomic KMSDRM backend by Manuel Alfayate Corchete <redwindwanderer@gmail.com>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
externals/SDL/src/video/kmsdrm/SDL_kmsdrmevents.c
Vendored
+1
View File
@@ -1,6 +1,7 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
Atomic KMSDRM backend by Manuel Alfayate Corchete <redwindwanderer@gmail.com>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
externals/SDL/src/video/kmsdrm/SDL_kmsdrmevents.h
Vendored
+1
View File
@@ -1,6 +1,7 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
Atomic KMSDRM backend by Manuel Alfayate Corchete <redwindwanderer@gmail.com>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
externals/SDL/src/video/kmsdrm/SDL_kmsdrmmouse.c
Vendored
+330 -292
View File
@@ -1,6 +1,7 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
Atomic KMSDRM backend by Manuel Alfayate Corchete <redwindwanderer@gmail.com>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
@@ -26,6 +27,7 @@
#include "SDL_kmsdrmvideo.h"
#include "SDL_kmsdrmmouse.h"
#include "SDL_kmsdrmdyn.h"
#include "SDL_assert.h"
#include "../../events/SDL_mouse_c.h"
#include "../../events/default_cursor.h"
@@ -38,276 +40,194 @@ static void KMSDRM_FreeCursor(SDL_Cursor * cursor);
static void KMSDRM_WarpMouse(SDL_Window * window, int x, int y);
static int KMSDRM_WarpMouseGlobal(int x, int y);
/**********************************/
/* Atomic helper functions block. */
/**********************************/
int
drm_atomic_movecursor(KMSDRM_CursorData *curdata, uint16_t x, uint16_t y)
{
SDL_DisplayData *dispdata = (SDL_DisplayData *)SDL_GetDisplayDriverData(0);
if (!dispdata->cursor_plane) /* We can't move a non-existing cursor, but that's ok. */
return 0;
/* Do we have a set of changes already in the making? If not, allocate a new one. */
if (!dispdata->atomic_req)
dispdata->atomic_req = KMSDRM_drmModeAtomicAlloc();
add_plane_property(dispdata->atomic_req,
dispdata->cursor_plane, "CRTC_X", x - curdata->hot_x);
add_plane_property(dispdata->atomic_req,
dispdata->cursor_plane, "CRTC_Y", y - curdata->hot_y);
return 0;
}
/***************************************/
/* Atomic helper functions block ends. */
/***************************************/
/* Converts a pixel from straight-alpha [AA, RR, GG, BB], which the SDL cursor surface has,
to premultiplied-alpha [AA. AA*RR, AA*GG, AA*BB].
These multiplications have to be done with floats instead of uint32_t's,
and the resulting values have to be converted to be relative to the 0-255 interval,
where 255 is 1.00 and anything between 0 and 255 is 0.xx. */
void alpha_premultiply_ARGB8888 (uint32_t *pixel) {
uint32_t A, R, G, B;
/* Component bytes extraction. */
A = (*pixel >> (3 << 3)) & 0xFF;
R = (*pixel >> (2 << 3)) & 0xFF;
G = (*pixel >> (1 << 3)) & 0xFF;
B = (*pixel >> (0 << 3)) & 0xFF;
/* Alpha pre-multiplication of each component. */
R = (float)A * ((float)R /255);
G = (float)A * ((float)G /255);
B = (float)A * ((float)B /255);
/* ARGB8888 pixel recomposition. */
(*pixel) = (((uint32_t)A << 24) | ((uint32_t)R << 16) | ((uint32_t)G << 8)) | ((uint32_t)B << 0);
}
static SDL_Cursor *
KMSDRM_CreateDefaultCursor(void)
{
return SDL_CreateCursor(default_cdata, default_cmask, DEFAULT_CWIDTH, DEFAULT_CHEIGHT, DEFAULT_CHOTX, DEFAULT_CHOTY);
}
/* Evaluate if a given cursor size is supported or not. Notably, current Intel gfx only support 64x64 and up. */
static SDL_bool
KMSDRM_IsCursorSizeSupported (int w, int h, uint32_t bo_format) {
SDL_VideoDevice *dev = SDL_GetVideoDevice();
SDL_VideoData *viddata = ((SDL_VideoData *)dev->driverdata);
SDL_DisplayData *dispdata = (SDL_DisplayData *)SDL_GetDisplayDriverData(0);
int ret;
uint32_t bo_handle;
struct gbm_bo *bo = KMSDRM_gbm_bo_create(viddata->gbm, w, h, bo_format,
GBM_BO_USE_CURSOR | GBM_BO_USE_WRITE);
if (!bo) {
SDL_SetError("Could not create GBM cursor BO width size %dx%d for size testing", w, h);
goto cleanup;
}
bo_handle = KMSDRM_gbm_bo_get_handle(bo).u32;
ret = KMSDRM_drmModeSetCursor(viddata->drm_fd, dispdata->crtc_id, bo_handle, w, h);
if (ret) {
goto cleanup;
}
else {
KMSDRM_gbm_bo_destroy(bo);
return SDL_TRUE;
}
cleanup:
if (bo) {
KMSDRM_gbm_bo_destroy(bo);
}
return SDL_FALSE;
}
/* Create a cursor from a surface */
/* This simply gets the cursor soft-buffer ready. We don't copy it to a GBO BO until ShowCursor()
because the cusor GBM BO (living in dispata) is destroyed and recreated when we recreate windows, etc. */
static SDL_Cursor *
KMSDRM_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y)
{
SDL_VideoDevice *dev = SDL_GetVideoDevice();
SDL_VideoData *viddata = ((SDL_VideoData *)dev->driverdata);
SDL_PixelFormat *pixlfmt = surface->format;
KMSDRM_CursorData *curdata;
SDL_Cursor *cursor;
SDL_bool cursor_supported = SDL_FALSE;
int i, ret, usable_cursor_w, usable_cursor_h;
uint32_t bo_format, bo_stride;
char *buffer = NULL;
size_t bufsize;
SDL_Cursor *cursor, *ret;
switch(pixlfmt->format) {
case SDL_PIXELFORMAT_RGB332:
bo_format = GBM_FORMAT_RGB332;
break;
case SDL_PIXELFORMAT_ARGB4444:
bo_format = GBM_FORMAT_ARGB4444;
break;
case SDL_PIXELFORMAT_RGBA4444:
bo_format = GBM_FORMAT_RGBA4444;
break;
case SDL_PIXELFORMAT_ABGR4444:
bo_format = GBM_FORMAT_ABGR4444;
break;
case SDL_PIXELFORMAT_BGRA4444:
bo_format = GBM_FORMAT_BGRA4444;
break;
case SDL_PIXELFORMAT_ARGB1555:
bo_format = GBM_FORMAT_ARGB1555;
break;
case SDL_PIXELFORMAT_RGBA5551:
bo_format = GBM_FORMAT_RGBA5551;
break;
case SDL_PIXELFORMAT_ABGR1555:
bo_format = GBM_FORMAT_ABGR1555;
break;
case SDL_PIXELFORMAT_BGRA5551:
bo_format = GBM_FORMAT_BGRA5551;
break;
case SDL_PIXELFORMAT_RGB565:
bo_format = GBM_FORMAT_RGB565;
break;
case SDL_PIXELFORMAT_BGR565:
bo_format = GBM_FORMAT_BGR565;
break;
case SDL_PIXELFORMAT_RGB888:
case SDL_PIXELFORMAT_RGB24:
bo_format = GBM_FORMAT_RGB888;
break;
case SDL_PIXELFORMAT_BGR888:
case SDL_PIXELFORMAT_BGR24:
bo_format = GBM_FORMAT_BGR888;
break;
case SDL_PIXELFORMAT_RGBX8888:
bo_format = GBM_FORMAT_RGBX8888;
break;
case SDL_PIXELFORMAT_BGRX8888:
bo_format = GBM_FORMAT_BGRX8888;
break;
case SDL_PIXELFORMAT_ARGB8888:
bo_format = GBM_FORMAT_ARGB8888;
break;
case SDL_PIXELFORMAT_RGBA8888:
bo_format = GBM_FORMAT_RGBA8888;
break;
case SDL_PIXELFORMAT_ABGR8888:
bo_format = GBM_FORMAT_ABGR8888;
break;
case SDL_PIXELFORMAT_BGRA8888:
bo_format = GBM_FORMAT_BGRA8888;
break;
case SDL_PIXELFORMAT_ARGB2101010:
bo_format = GBM_FORMAT_ARGB2101010;
break;
default:
SDL_SetError("Unsupported pixel format for cursor");
return NULL;
}
curdata = NULL;
ret = NULL;
if (!KMSDRM_gbm_device_is_format_supported(viddata->gbm, bo_format, GBM_BO_USE_CURSOR | GBM_BO_USE_WRITE)) {
SDL_SetError("Unsupported pixel format for cursor");
return NULL;
}
/* All code below assumes ARGB8888 format for the cursor surface,
like other backends do. Also, the GBM BO pixels have to be
alpha-premultiplied, but the SDL surface we receive has
straight-alpha pixels, so we always have to convert. */
SDL_assert(surface->format->format == SDL_PIXELFORMAT_ARGB8888);
SDL_assert(surface->pitch == surface->w * 4);
cursor = (SDL_Cursor *) SDL_calloc(1, sizeof(*cursor));
if (!cursor) {
SDL_OutOfMemory();
return NULL;
goto cleanup;
}
curdata = (KMSDRM_CursorData *) SDL_calloc(1, sizeof(*curdata));
if (!curdata) {
SDL_OutOfMemory();
SDL_free(cursor);
return NULL;
}
/* We have to know beforehand if a cursor with the same size as the surface is supported.
* If it's not, we have to find an usable cursor size and use an intermediate and clean buffer.
* If we can't find a cursor size supported by the hardware, we won't go on trying to
* call SDL_SetCursor() later. */
usable_cursor_w = surface->w;
usable_cursor_h = surface->h;
while (usable_cursor_w <= MAX_CURSOR_W && usable_cursor_h <= MAX_CURSOR_H) {
if (KMSDRM_IsCursorSizeSupported(usable_cursor_w, usable_cursor_h, bo_format)) {
cursor_supported = SDL_TRUE;
break;
}
usable_cursor_w += usable_cursor_w;
usable_cursor_h += usable_cursor_h;
}
if (!cursor_supported) {
SDL_SetError("Could not find a cursor size supported by the kernel driver");
goto cleanup;
}
/* hox_x and hot_y are the coordinates of the "tip of the cursor" from it's base. */
curdata->hot_x = hot_x;
curdata->hot_y = hot_y;
curdata->w = usable_cursor_w;
curdata->h = usable_cursor_h;
curdata->w = surface->w;
curdata->h = surface->h;
curdata->buffer = NULL;
curdata->bo = KMSDRM_gbm_bo_create(viddata->gbm, usable_cursor_w, usable_cursor_h, bo_format,
GBM_BO_USE_CURSOR | GBM_BO_USE_WRITE);
/* Configure the cursor buffer info.
This buffer has the original size of the cursor surface we are given. */
curdata->buffer_pitch = surface->pitch;
curdata->buffer_size = surface->pitch * surface->h;
curdata->buffer = (uint32_t*)SDL_malloc(curdata->buffer_size);
if (!curdata->bo) {
SDL_SetError("Could not create GBM cursor BO");
if (!curdata->buffer) {
SDL_OutOfMemory();
goto cleanup;
}
bo_stride = KMSDRM_gbm_bo_get_stride(curdata->bo);
bufsize = bo_stride * curdata->h;
if (surface->pitch != bo_stride) {
/* pitch doesn't match stride, must be copied to temp buffer */
buffer = SDL_malloc(bufsize);
if (!buffer) {
SDL_OutOfMemory();
if (SDL_MUSTLOCK(surface)) {
if (SDL_LockSurface(surface) < 0) {
/* Could not lock surface */
goto cleanup;
}
}
if (SDL_MUSTLOCK(surface)) {
if (SDL_LockSurface(surface) < 0) {
/* Could not lock surface */
goto cleanup;
}
}
/* Copy the surface pixels to the cursor buffer, for future use in ShowCursor() */
SDL_memcpy(curdata->buffer, surface->pixels, curdata->buffer_size);
/* Clean the whole temporary buffer */
SDL_memset(buffer, 0x00, bo_stride * curdata->h);
/* Copy to temporary buffer */
for (i = 0; i < surface->h; i++) {
SDL_memcpy(buffer + (i * bo_stride),
((char *)surface->pixels) + (i * surface->pitch),
surface->w * pixlfmt->BytesPerPixel);
}
if (SDL_MUSTLOCK(surface)) {
SDL_UnlockSurface(surface);
}
if (KMSDRM_gbm_bo_write(curdata->bo, buffer, bufsize)) {
SDL_SetError("Could not write to GBM cursor BO");
goto cleanup;
}
/* Free temporary buffer */
SDL_free(buffer);
buffer = NULL;
} else {
/* surface matches BO format */
if (SDL_MUSTLOCK(surface)) {
if (SDL_LockSurface(surface) < 0) {
/* Could not lock surface */
goto cleanup;
}
}
ret = KMSDRM_gbm_bo_write(curdata->bo, surface->pixels, bufsize);
if (SDL_MUSTLOCK(surface)) {
SDL_UnlockSurface(surface);
}
if (ret) {
SDL_SetError("Could not write to GBM cursor BO");
goto cleanup;
}
if (SDL_MUSTLOCK(surface)) {
SDL_UnlockSurface(surface);
}
cursor->driverdata = curdata;
return cursor;
ret = cursor;
cleanup:
if (buffer) {
SDL_free(buffer);
if (ret == NULL) {
if (curdata) {
if (curdata->buffer) {
SDL_free(curdata->buffer);
}
SDL_free(curdata);
}
if (cursor) {
SDL_free(cursor);
}
}
if (cursor) {
SDL_free(cursor);
}
if (curdata) {
if (curdata->bo) {
KMSDRM_gbm_bo_destroy(curdata->bo);
}
SDL_free(curdata);
}
return NULL;
return ret;
}
/* Show the specified cursor, or hide if cursor is NULL */
/* When we create a window, we have to test if we have to show the cursor,
and explicily do so if necessary.
This is because when we destroy a window, we take the cursor away from the
cursor plane, and destroy the cusror GBM BO. So we have to re-show it,
so to say. */
void
KMSDRM_InitCursor()
{
SDL_Mouse *mouse = NULL;
mouse = SDL_GetMouse();
if (!mouse) {
return;
}
if (!(mouse->cur_cursor)) {
return;
}
if (!(mouse->cursor_shown)) {
return;
}
KMSDRM_ShowCursor(mouse->cur_cursor);
}
/* Show the specified cursor, or hide if cursor is NULL.
cur_cursor is the current cursor, and cursor is the new cursor.
A cursor is displayed on a display, so we have to add a pointer to dispdata
to the driverdata
*/
static int
KMSDRM_ShowCursor(SDL_Cursor * cursor)
{
SDL_VideoDevice *dev = SDL_GetVideoDevice();
SDL_VideoData *viddata = ((SDL_VideoData *)dev->driverdata);
SDL_VideoDevice *video_device = SDL_GetVideoDevice();
//SDL_VideoData *viddata = ((SDL_VideoData *)dev->driverdata);
SDL_Mouse *mouse;
KMSDRM_CursorData *curdata;
SDL_VideoDisplay *display = NULL;
SDL_DisplayData *dispdata = NULL;
KMSDRM_FBInfo *fb;
KMSDRM_PlaneInfo info = {0};
size_t bo_stride;
size_t bufsize;
uint32_t *ready_buffer = NULL;
uint32_t pixel;
int i,j;
int ret;
uint32_t bo_handle;
mouse = SDL_GetMouse();
if (!mouse) {
@@ -321,87 +241,121 @@ KMSDRM_ShowCursor(SDL_Cursor * cursor)
}
}
/**********************************/
/* if cursor == NULL, HIDE cursor */
/**********************************/
if (!cursor) {
/* Hide current cursor */
/* Hide CURRENT cursor, a cursor that is already on screen
and SDL is stored in mouse->cur_cursor. */
if (mouse->cur_cursor && mouse->cur_cursor->driverdata) {
curdata = (KMSDRM_CursorData *) mouse->cur_cursor->driverdata;
if (curdata->crtc_id != 0) {
ret = KMSDRM_drmModeSetCursor(viddata->drm_fd, curdata->crtc_id, 0, 0, 0);
if (ret) {
SDL_SetError("Could not hide current cursor with drmModeSetCursor().");
return ret;
if (dispdata && dispdata->cursor_plane) {
info.plane = dispdata->cursor_plane;
/* The rest of the members are zeroed. */
drm_atomic_set_plane_props(&info);
if (drm_atomic_commit(display->device, SDL_TRUE))
return SDL_SetError("Failed atomic commit in KMSDRM_ShowCursor.");
}
/* Mark previous cursor as not-displayed */
curdata->crtc_id = 0;
return 0;
}
}
/* otherwise if possible, hide global cursor */
if (dispdata && dispdata->crtc_id != 0) {
ret = KMSDRM_drmModeSetCursor(viddata->drm_fd, dispdata->crtc_id, 0, 0, 0);
if (ret) {
SDL_SetError("Could not hide display's cursor with drmModeSetCursor().");
return ret;
}
return 0;
}
return SDL_SetError("Couldn't find cursor to hide.");
}
/* If cursor != NULL, show new cursor on display */
/************************************************/
/* If cursor != NULL, DO show cursor on display */
/************************************************/
if (!display) {
return SDL_SetError("Could not get display for mouse.");
}
if (!dispdata) {
return SDL_SetError("Could not get display driverdata.");
}
if (!dispdata->cursor_plane) {
return SDL_SetError("Hardware cursor plane not initialized.");
}
curdata = (KMSDRM_CursorData *) cursor->driverdata;
if (!curdata || !curdata->bo) {
if (!curdata || !dispdata->cursor_bo) {
return SDL_SetError("Cursor not initialized properly.");
}
bo_handle = KMSDRM_gbm_bo_get_handle(curdata->bo).u32;
if (curdata->hot_x == 0 && curdata->hot_y == 0) {
ret = KMSDRM_drmModeSetCursor(viddata->drm_fd, dispdata->crtc_id, bo_handle,
curdata->w, curdata->h);
} else {
ret = KMSDRM_drmModeSetCursor2(viddata->drm_fd, dispdata->crtc_id, bo_handle,
curdata->w, curdata->h, curdata->hot_x, curdata->hot_y);
}
if (ret) {
SDL_SetError("drmModeSetCursor failed.");
return ret;
/* Prepare a buffer we can dump to our GBM BO (different size, alpha premultiplication...) */
bo_stride = KMSDRM_gbm_bo_get_stride(dispdata->cursor_bo);
bufsize = bo_stride * curdata->h;
ready_buffer = (uint32_t*)SDL_malloc(bufsize);
if (!ready_buffer) {
ret = SDL_OutOfMemory();
goto cleanup;
}
curdata->crtc_id = dispdata->crtc_id;
/* Clean the whole buffer we are preparing. */
SDL_memset(ready_buffer, 0x00, bo_stride * curdata->h);
return 0;
/* Copy from the cursor buffer to a buffer that we can dump to the GBM BO,
pre-multiplying by alpha each pixel as we go. */
for (i = 0; i < curdata->h; i++) {
for (j = 0; j < curdata->w; j++) {
pixel = ((uint32_t*)curdata->buffer)[i * curdata->w + j];
alpha_premultiply_ARGB8888 (&pixel);
SDL_memcpy(ready_buffer + (i * dispdata->cursor_w) + j, &pixel, 4);
}
}
/* Dump the cursor buffer to our GBM BO. */
if (KMSDRM_gbm_bo_write(dispdata->cursor_bo, ready_buffer, bufsize)) {
ret = SDL_SetError("Could not write to GBM cursor BO");
goto cleanup;
}
/* Get the fb_id for the GBM BO so we can show it on the cursor plane. */
fb = KMSDRM_FBFromBO(video_device, dispdata->cursor_bo);
/* Show the GBM BO buffer on the cursor plane. */
info.plane = dispdata->cursor_plane;
info.crtc_id = dispdata->crtc->crtc->crtc_id;
info.fb_id = fb->fb_id;
info.src_w = curdata->w;
info.src_h = curdata->h;
info.crtc_x = mouse->x - curdata->hot_x;
info.crtc_y = mouse->y - curdata->hot_y;
info.crtc_w = curdata->w;
info.crtc_h = curdata->h;
drm_atomic_set_plane_props(&info);
if (drm_atomic_commit(display->device, SDL_TRUE)) {
ret = SDL_SetError("Failed atomic commit in KMSDRM_ShowCursor.");
goto cleanup;
}
ret = 0;
cleanup:
if (ready_buffer) {
SDL_free(ready_buffer);
}
return ret;
}
/* Free a window manager cursor */
/* We have destroyed the cursor by now, in KMSDRM_DestroyCursor.
This is only for freeing the SDL_cursor.*/
static void
KMSDRM_FreeCursor(SDL_Cursor * cursor)
{
KMSDRM_CursorData *curdata;
int drm_fd;
/* Even if the cursor is not ours, free it. */
if (cursor) {
curdata = (KMSDRM_CursorData *) cursor->driverdata;
if (curdata) {
if (curdata->bo) {
if (curdata->crtc_id != 0) {
drm_fd = KMSDRM_gbm_device_get_fd(KMSDRM_gbm_bo_get_device(curdata->bo));
/* Hide the cursor if previously shown on a CRTC */
KMSDRM_drmModeSetCursor(drm_fd, curdata->crtc_id, 0, 0, 0);
curdata->crtc_id = 0;
}
KMSDRM_gbm_bo_destroy(curdata->bo);
curdata->bo = NULL;
}
/* Free cursor buffer */
if (curdata->buffer) {
SDL_free(curdata->buffer);
curdata->buffer = NULL;
}
/* Free cursor itself */
if (cursor->driverdata) {
SDL_free(cursor->driverdata);
}
SDL_free(cursor);
@@ -422,6 +376,7 @@ KMSDRM_WarpMouseGlobal(int x, int y)
{
KMSDRM_CursorData *curdata;
SDL_Mouse *mouse = SDL_GetMouse();
SDL_DisplayData *dispdata = (SDL_DisplayData *)SDL_GetDisplayDriverData(0);
if (mouse && mouse->cur_cursor && mouse->cur_cursor->driverdata) {
/* Update internal mouse position. */
@@ -429,20 +384,9 @@ KMSDRM_WarpMouseGlobal(int x, int y)
/* And now update the cursor graphic position on screen. */
curdata = (KMSDRM_CursorData *) mouse->cur_cursor->driverdata;
if (curdata->bo) {
if (curdata->crtc_id != 0) {
int ret, drm_fd;
drm_fd = KMSDRM_gbm_device_get_fd(KMSDRM_gbm_bo_get_device(curdata->bo));
ret = KMSDRM_drmModeMoveCursor(drm_fd, curdata->crtc_id, x, y);
if (ret) {
SDL_SetError("drmModeMoveCursor() failed.");
}
return ret;
} else {
return SDL_SetError("Cursor is not currently shown.");
if (dispdata->cursor_bo) {
if (drm_atomic_movecursor(curdata, x, y)) {
return SDL_SetError("drm_atomic_movecursor() failed.");
}
} else {
return SDL_SetError("Cursor not initialized properly.");
@@ -450,6 +394,8 @@ KMSDRM_WarpMouseGlobal(int x, int y)
} else {
return SDL_SetError("No mouse or current cursor.");
}
return 0;
}
void
@@ -458,7 +404,12 @@ KMSDRM_InitMouse(_THIS)
/* FIXME: Using UDEV it should be possible to scan all mice
* but there's no point in doing so as there's no multimice support...yet!
*/
SDL_VideoDevice *dev = SDL_GetVideoDevice();
SDL_VideoData *viddata = ((SDL_VideoData *)dev->driverdata);
SDL_DisplayData *dispdata = (SDL_DisplayData *)SDL_GetDisplayDriverData(0);
SDL_Mouse *mouse = SDL_GetMouse();
uint64_t usable_cursor_w, usable_cursor_h;
mouse->CreateCursor = KMSDRM_CreateCursor;
mouse->ShowCursor = KMSDRM_ShowCursor;
@@ -467,13 +418,96 @@ KMSDRM_InitMouse(_THIS)
mouse->WarpMouse = KMSDRM_WarpMouse;
mouse->WarpMouseGlobal = KMSDRM_WarpMouseGlobal;
/***************************************************************************/
/* REMEMBER TO BE SURE OF UNDOING ALL THESE STEPS PROPERLY BEFORE CALLING */
/* gbm_device_destroy, OR YOU WON'T BE ABLE TO CREATE A NEW ONE (ERROR -13 */
/* ON gbm_create_device). */
/***************************************************************************/
/* 1- Init cursor plane, if we haven't yet. */
if (!dispdata->cursor_plane) {
setup_plane(_this, &(dispdata->cursor_plane), DRM_PLANE_TYPE_CURSOR);
}
/* 2- Create the cursor GBM BO, if we haven't yet. */
if (!dispdata->cursor_bo) {
if (!KMSDRM_gbm_device_is_format_supported(viddata->gbm_dev, GBM_FORMAT_ARGB8888,
GBM_BO_USE_CURSOR | GBM_BO_USE_WRITE))
{
SDL_SetError("Unsupported pixel format for cursor");
return;
}
if (KMSDRM_drmGetCap(viddata->drm_fd, DRM_CAP_CURSOR_WIDTH, &usable_cursor_w) ||
KMSDRM_drmGetCap(viddata->drm_fd, DRM_CAP_CURSOR_HEIGHT, &usable_cursor_h))
{
SDL_SetError("Could not get the recommended GBM cursor size");
goto cleanup;
}
if (usable_cursor_w == 0 || usable_cursor_h == 0) {
SDL_SetError("Could not get an usable GBM cursor size");
goto cleanup;
}
dispdata->cursor_w = usable_cursor_w;
dispdata->cursor_h = usable_cursor_h;
dispdata->cursor_bo = KMSDRM_gbm_bo_create(viddata->gbm_dev,
usable_cursor_w, usable_cursor_h,
GBM_FORMAT_ARGB8888, GBM_BO_USE_CURSOR | GBM_BO_USE_WRITE);
if (!dispdata->cursor_bo) {
SDL_SetError("Could not create GBM cursor BO");
goto cleanup;
}
}
/* SDL expects to set the default cursor on screen when we init the mouse. */
SDL_SetDefaultCursor(KMSDRM_CreateDefaultCursor());
return;
cleanup:
if (dispdata->cursor_bo) {
KMSDRM_gbm_bo_destroy(dispdata->cursor_bo);
dispdata->cursor_bo = NULL;
}
}
void
KMSDRM_QuitMouse(_THIS)
KMSDRM_DeinitMouse(_THIS)
{
/* TODO: ? */
SDL_VideoDevice *video_device = SDL_GetVideoDevice();
SDL_DisplayData *dispdata = (SDL_DisplayData *)SDL_GetDisplayDriverData(0);
KMSDRM_PlaneInfo info = {0};
/*******************************************/
/* UNDO WHAT WE DID IN KMSDRM_InitMouse(). */
/*******************************************/
/* 1- Destroy the curso GBM BO. */
if (video_device && dispdata->cursor_bo) {
/* Unsethe the cursor BO from the cursor plane.
(The other members of the plane info are zeroed). */
info.plane = dispdata->cursor_plane;
drm_atomic_set_plane_props(&info);
/* Wait until the cursor is unset from the cursor plane
before destroying it's BO. */
if (drm_atomic_commit(video_device, SDL_TRUE)) {
SDL_SetError("Failed atomic commit in KMSDRM_DenitMouse.");
}
/* ..and finally destroy the cursor DRM BO! */
KMSDRM_gbm_bo_destroy(dispdata->cursor_bo);
dispdata->cursor_bo = NULL;
}
/* 2- Free the cursor plane, on which the cursor was being shown. */
if (dispdata->cursor_plane) {
free_plane(&dispdata->cursor_plane);
}
}
/* This is called when a mouse motion event occurs */
@@ -482,17 +516,21 @@ KMSDRM_MoveCursor(SDL_Cursor * cursor)
{
SDL_Mouse *mouse = SDL_GetMouse();
KMSDRM_CursorData *curdata;
int drm_fd, ret;
/* We must NOT call SDL_SendMouseMotion() here or we will enter recursivity!
That's why we move the cursor graphic ONLY. */
if (mouse && mouse->cur_cursor && mouse->cur_cursor->driverdata) {
curdata = (KMSDRM_CursorData *) mouse->cur_cursor->driverdata;
drm_fd = KMSDRM_gbm_device_get_fd(KMSDRM_gbm_bo_get_device(curdata->bo));
ret = KMSDRM_drmModeMoveCursor(drm_fd, curdata->crtc_id, mouse->x, mouse->y);
if (ret) {
SDL_SetError("drmModeMoveCursor() failed.");
/* Some programs expect cursor movement even while they don't do SwapWindow() calls,
and since we ride on the atomic_commit() in SwapWindow() for cursor movement,
cursor won't move in these situations. We could do an atomic_commit() here
for each cursor movement request, but it cripples the movement to 30FPS,
so a future solution is needed. SDLPoP "QUIT?" menu is an example of this
situation. */
if (drm_atomic_movecursor(curdata, mouse->x, mouse->y)) {
SDL_SetError("drm_atomic_movecursor() failed.");
}
}
}
externals/SDL/src/video/kmsdrm/SDL_kmsdrmmouse.h
Vendored
+14 -5
View File
@@ -1,6 +1,7 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
Atomic KMSDRM backend by Manuel Alfayate Corchete <redwindwanderer@gmail.com>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
@@ -29,16 +30,24 @@
#define MAX_CURSOR_W 512
#define MAX_CURSOR_H 512
/* Driverdata with driver-side info about the cursor. */
typedef struct _KMSDRM_CursorData
{
struct gbm_bo *bo;
uint32_t crtc_id;
int hot_x, hot_y;
int w, h;
uint16_t hot_x, hot_y;
uint16_t w, h;
/* The buffer where we store the mouse bitmap ready to be used.
We get it ready and filled in CreateCursor(), and copy it to a GBM BO in ShowCursor().*/
uint32_t *buffer;
size_t buffer_size;
size_t buffer_pitch;
} KMSDRM_CursorData;
extern void KMSDRM_InitMouse(_THIS);
extern void KMSDRM_QuitMouse(_THIS);
extern void KMSDRM_DeinitMouse(_THIS);
extern void KMSDRM_InitCursor();
#endif /* SDL_KMSDRM_mouse_h_ */
externals/SDL/src/video/kmsdrm/SDL_kmsdrmopengles.c
Vendored
+301 -72
View File
@@ -1,6 +1,7 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
Atomic KMSDRM backend by Manuel Alfayate Corchete <redwindwanderer@gmail.com>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
@@ -23,22 +24,59 @@
#if SDL_VIDEO_DRIVER_KMSDRM && SDL_VIDEO_OPENGL_EGL
#include "SDL_log.h"
#include "SDL_kmsdrmvideo.h"
#include "SDL_kmsdrmopengles.h"
#include "SDL_kmsdrmdyn.h"
#include "SDL_hints.h"
#ifndef EGL_PLATFORM_GBM_MESA
#define EGL_PLATFORM_GBM_MESA 0x31D7
#endif
#ifndef EGL_SYNC_NATIVE_FENCE_ANDROID
#define EGL_SYNC_NATIVE_FENCE_ANDROID 0x3144
#endif
#ifndef EGL_SYNC_NATIVE_FENCE_FD_ANDROID
#define EGL_SYNC_NATIVE_FENCE_FD_ANDROID 0x3145
#endif
#ifndef EGL_NO_NATIVE_FENCE_FD_ANDROID
#define EGL_NO_NATIVE_FENCE_FD_ANDROID -1
#endif
/* EGL implementation of SDL OpenGL support */
void
KMSDRM_GLES_DefaultProfileConfig(_THIS, int *mask, int *major, int *minor)
{
/* if SDL was _also_ built with the Raspberry Pi driver (so we're
definitely a Pi device), default to GLES2. */
#if SDL_VIDEO_DRIVER_RPI
*mask = SDL_GL_CONTEXT_PROFILE_ES;
*major = 2;
*minor = 0;
#endif
}
int
KMSDRM_GLES_LoadLibrary(_THIS, const char *path) {
NativeDisplayType display = (NativeDisplayType)((SDL_VideoData *)_this->driverdata)->gbm;
/* Just pretend you do this here, but don't do it until KMSDRM_CreateWindow(),
where we do the same library load we would normally do here.
because this gets called by SDL_CreateWindow() before KMSDR_CreateWindow(),
so gbm dev isn't yet created when this is called, AND we can't alter the
call order in SDL_CreateWindow(). */
#if 0
NativeDisplayType display = (NativeDisplayType)((SDL_VideoData *)_this->driverdata)->gbm_dev;
return SDL_EGL_LoadLibrary(_this, path, display, EGL_PLATFORM_GBM_MESA);
#endif
return 0;
}
void
KMSDRM_GLES_UnloadLibrary(_THIS) {
/* As with KMSDRM_GLES_LoadLibrary(), we define our own unloading function so
we manually unload the library whenever we want. */
}
SDL_EGL_CreateContext_impl(KMSDRM)
@@ -57,94 +95,285 @@ int KMSDRM_GLES_SetSwapInterval(_THIS, int interval) {
return 0;
}
/*********************************/
/* Atomic functions block */
/*********************************/
#define VOID2U64(x) ((uint64_t)(unsigned long)(x))
static EGLSyncKHR create_fence(int fd, _THIS)
{
EGLint attrib_list[] = {
EGL_SYNC_NATIVE_FENCE_FD_ANDROID, fd,
EGL_NONE,
};
EGLSyncKHR fence = _this->egl_data->eglCreateSyncKHR
(_this->egl_data->egl_display, EGL_SYNC_NATIVE_FENCE_ANDROID, attrib_list);
assert(fence);
return fence;
}
/***********************************************************************************/
/* Comments about buffer access protection mechanism (=fences) are the ones boxed. */
/* Also, DON'T remove the asserts: if a fence-related call fails, it's better that */
/* program exits immediately, or we could leave KMS waiting for a failed/missing */
/* fence forevever. */
/***********************************************************************************/
int
KMSDRM_GLES_SwapWindow(_THIS, SDL_Window * window) {
KMSDRM_GLES_SwapWindowFenced(_THIS, SDL_Window * window)
{
SDL_WindowData *windata = ((SDL_WindowData *) window->driverdata);
SDL_DisplayData *dispdata = (SDL_DisplayData *) SDL_GetDisplayForWindow(window)->driverdata;
SDL_VideoData *viddata = ((SDL_VideoData *)_this->driverdata);
KMSDRM_FBInfo *fb_info;
int ret, timeout;
KMSDRM_FBInfo *fb;
KMSDRM_PlaneInfo info = {0};
/* Recreate the GBM / EGL surfaces if the display mode has changed */
if (windata->egl_surface_dirty) {
KMSDRM_CreateSurfaces(_this, window);
/******************************************************************/
/* Create the GPU-side FENCE OBJECT. It will be inserted into the */
/* GL CMDSTREAM exactly at the end of the gl commands that form a */
/* frame.(KMS will have to wait on it before doing a pageflip.) */
/******************************************************************/
dispdata->gpu_fence = create_fence(EGL_NO_NATIVE_FENCE_FD_ANDROID, _this);
assert(dispdata->gpu_fence);
/******************************************************************/
/* eglSwapBuffers flushes the fence down the GL CMDSTREAM, so we */
/* know for sure it's there now. */
/* Also it marks, at EGL level, the buffer that we want to become */
/* the new front buffer. (Remember that won't really happen until */
/* we request a pageflip at the KMS level and it completes. */
/******************************************************************/
if (! _this->egl_data->eglSwapBuffers(_this->egl_data->egl_display, windata->egl_surface)) {
return SDL_EGL_SetError("Failed to swap EGL buffers", "eglSwapBuffers");
}
/* Wait for confirmation that the next front buffer has been flipped, at which
point the previous front buffer can be released */
timeout = 0;
if (_this->egl_data->egl_swapinterval == 1) {
timeout = -1;
}
if (!KMSDRM_WaitPageFlip(_this, windata, timeout)) {
return 0;
}
/******************************************************************/
/* EXPORT the GPU-side FENCE OBJECT to the fence INPUT FD, so we */
/* can pass it into the kernel. Atomic ioctl will pass the */
/* in-fence fd into the kernel, thus telling KMS that it has to */
/* wait for GPU to finish rendering the frame (remember where we */
/* put the fence in the GL CMDSTREAM) before doing the changes */
/* requested in the atomic ioct (the pageflip in this case). */
/* (We export the GPU-side FENCE OJECT to the fence INPUT FD now, */
/* not sooner, because now we are sure that the GPU-side fence is */
/* in the CMDSTREAM to be lifted when the CMDSTREAM to this point */
/* is completed). */
/******************************************************************/
dispdata->kms_in_fence_fd = _this->egl_data->eglDupNativeFenceFDANDROID (_this->egl_data->egl_display,
dispdata->gpu_fence);
_this->egl_data->eglDestroySyncKHR(_this->egl_data->egl_display, dispdata->gpu_fence);
assert(dispdata->kms_in_fence_fd != -1);
/* Release the previous front buffer */
if (windata->curr_bo) {
KMSDRM_gbm_surface_release_buffer(windata->gs, windata->curr_bo);
/* SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "Released GBM surface %p", (void *)windata->curr_bo); */
windata->curr_bo = NULL;
}
windata->curr_bo = windata->next_bo;
/* Make the current back buffer the next front buffer */
if (!(_this->egl_data->eglSwapBuffers(_this->egl_data->egl_display, windata->egl_surface))) {
SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "eglSwapBuffers failed.");
return 0;
}
/* Lock the next front buffer so it can't be allocated as a back buffer */
/* Lock the buffer that is marked by eglSwapBuffers() to become the
next front buffer (so it can not be chosen by EGL as back buffer
to draw on), and get a handle to it to request the pageflip on it.
REMEMBER that gbm_surface_lock_front_buffer() ALWAYS has to be
called after eglSwapBuffers(). */
windata->next_bo = KMSDRM_gbm_surface_lock_front_buffer(windata->gs);
if (!windata->next_bo) {
SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "Could not lock GBM surface front buffer");
return 0;
/* } else {
SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "Locked GBM surface %p", (void *)windata->next_bo); */
return SDL_SetError("Failed to lock frontbuffer");
}
fb = KMSDRM_FBFromBO(_this, windata->next_bo);
if (!fb) {
return SDL_SetError("Failed to get a new framebuffer from BO");
}
fb_info = KMSDRM_FBFromBO(_this, windata->next_bo);
if (!fb_info) {
return 0;
/* Add the pageflip to the request list. */
info.plane = dispdata->display_plane;
info.crtc_id = dispdata->crtc->crtc->crtc_id;
info.fb_id = fb->fb_id;
info.src_w = windata->src_w;
info.src_h = windata->src_h;
info.crtc_w = windata->output_w;
info.crtc_h = windata->output_h;
info.crtc_x = windata->output_x;
drm_atomic_set_plane_props(&info);
/*****************************************************************/
/* Tell the display (KMS) that it will have to wait on the fence */
/* for the GPU-side FENCE. */
/* */
/* Since KMS is a kernel thing, we have to pass an FD into */
/* the kernel, and get another FD out of the kernel. */
/* */
/* 1) To pass the GPU-side fence into the kernel, we set the */
/* INPUT FD as the IN_FENCE_FD prop of the PRIMARY PLANE. */
/* This FD tells KMS (the kernel) to wait for the GPU-side fence.*/
/* */
/* 2) To get the KMS-side fence out of the kernel, we set the */
/* OUTPUT FD as the OUT_FEWNCE_FD prop of the CRTC. */
/* This FD will be later imported as a FENCE OBJECT which will be*/
/* used to tell the GPU to wait for KMS to complete the changes */
/* requested in atomic_commit (the pageflip in this case). */
/*****************************************************************/
if (dispdata->kms_in_fence_fd != -1)
{
add_plane_property(dispdata->atomic_req, dispdata->display_plane,
"IN_FENCE_FD", dispdata->kms_in_fence_fd);
add_crtc_property(dispdata->atomic_req, dispdata->crtc,
"OUT_FENCE_PTR", VOID2U64(&dispdata->kms_out_fence_fd));
}
if (!windata->curr_bo) {
/* On the first swap, immediately present the new front buffer. Before
drmModePageFlip can be used the CRTC has to be configured to use
the current connector and mode with drmModeSetCrtc */
ret = KMSDRM_drmModeSetCrtc(viddata->drm_fd, dispdata->crtc_id, fb_info->fb_id, 0,
0, &dispdata->conn->connector_id, 1, &dispdata->mode);
/* Do we have a pending modesetting? If so, set the necessary
props so it's included in the incoming atomic commit. */
if (dispdata->modeset_pending) {
uint32_t blob_id;
SDL_VideoData *viddata = (SDL_VideoData *)_this->driverdata;
if (ret) {
SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "Could not configure CRTC");
}
} else {
/* On subsequent swaps, queue the new front buffer to be flipped during
the next vertical blank */
ret = KMSDRM_drmModePageFlip(viddata->drm_fd, dispdata->crtc_id, fb_info->fb_id,
DRM_MODE_PAGE_FLIP_EVENT, &windata->waiting_for_flip);
/* SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "drmModePageFlip(%d, %u, %u, DRM_MODE_PAGE_FLIP_EVENT, &windata->waiting_for_flip)",
viddata->drm_fd, displaydata->crtc_id, fb_info->fb_id); */
if (_this->egl_data->egl_swapinterval == 1) {
if (ret == 0) {
windata->waiting_for_flip = SDL_TRUE;
} else {
SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "Could not queue pageflip: %d", ret);
}
}
/* Wait immediately for vsync (as if we only had two buffers), for low input-lag scenarios.
Run your SDL2 program with "SDL_KMSDRM_DOUBLE_BUFFER=1 <program_name>" to enable this. */
if (_this->egl_data->egl_swapinterval == 1 && windata->double_buffer) {
KMSDRM_WaitPageFlip(_this, windata, -1);
}
dispdata->atomic_flags |= DRM_MODE_ATOMIC_ALLOW_MODESET;
add_connector_property(dispdata->atomic_req, dispdata->connector, "CRTC_ID", dispdata->crtc->crtc->crtc_id);
KMSDRM_drmModeCreatePropertyBlob(viddata->drm_fd, &dispdata->mode, sizeof(dispdata->mode), &blob_id);
add_crtc_property(dispdata->atomic_req, dispdata->crtc, "MODE_ID", blob_id);
add_crtc_property(dispdata->atomic_req, dispdata->crtc, "ACTIVE", 1);
dispdata->modeset_pending = SDL_FALSE;
}
/*****************************************************************/
/* Issue a non-blocking atomic commit: for triple buffering, */
/* this must not block so the game can start building another */
/* frame, even if the just-requested pageflip hasnt't completed. */
/*****************************************************************/
if (drm_atomic_commit(_this, SDL_FALSE)) {
return SDL_SetError("Failed to issue atomic commit on pageflip");
}
/* Release the previous front buffer so EGL can chose it as back buffer
and render on it again. */
if (windata->bo) {
KMSDRM_gbm_surface_release_buffer(windata->gs, windata->bo);
}
/* Take note of the buffer about to become front buffer, so next
time we come here we can free it like we just did with the previous
front buffer. */
windata->bo = windata->next_bo;
/****************************************************************/
/* Import the KMS-side FENCE OUTPUT FD from the kernel to the */
/* KMS-side FENCE OBJECT so we can use use it to fence the GPU. */
/****************************************************************/
dispdata->kms_fence = create_fence(dispdata->kms_out_fence_fd, _this);
assert(dispdata->kms_fence);
/****************************************************************/
/* "Delete" the fence OUTPUT FD, because we already have the */
/* KMS FENCE OBJECT, the fence itself is away from us, on the */
/* kernel side. */
/****************************************************************/
dispdata->kms_out_fence_fd = -1;
/*****************************************************************/
/* Tell the GPU to wait on the fence for the KMS-side FENCE, */
/* which means waiting until the requested pageflip is completed.*/
/*****************************************************************/
_this->egl_data->eglWaitSyncKHR(_this->egl_data->egl_display, dispdata->kms_fence, 0);
return 0;
}
int
KMSDRM_GLES_SwapWindowDoubleBuffered(_THIS, SDL_Window * window)
{
SDL_WindowData *windata = ((SDL_WindowData *) window->driverdata);
SDL_DisplayData *dispdata = (SDL_DisplayData *) SDL_GetDisplayForWindow(window)->driverdata;
KMSDRM_FBInfo *fb;
KMSDRM_PlaneInfo info = {0};
/****************************************************************************************************/
/* In double-buffer mode, atomic_commit will always be synchronous/blocking (ie: won't return until */
/* the requested changes are really done). */
/* Also, there's no need to fence KMS or the GPU, because we won't be entering game loop again */
/* (hence not building or executing a new cmdstring) until pageflip is done, so we don't need to */
/* protect the KMS/GPU access to the buffer. */
/****************************************************************************************************/
/* Mark, at EGL level, the buffer that we want to become the new front buffer.
However, it won't really happen until we request a pageflip at the KMS level and it completes. */
if (! _this->egl_data->eglSwapBuffers(_this->egl_data->egl_display, windata->egl_surface)) {
return SDL_EGL_SetError("Failed to swap EGL buffers", "eglSwapBuffers");
}
/* Lock the buffer that is marked by eglSwapBuffers() to become the next front buffer (so it can not
be chosen by EGL as back buffer to draw on), and get a handle to it to request the pageflip on it. */
windata->next_bo = KMSDRM_gbm_surface_lock_front_buffer(windata->gs);
if (!windata->next_bo) {
return SDL_SetError("Failed to lock frontbuffer");
}
fb = KMSDRM_FBFromBO(_this, windata->next_bo);
if (!fb) {
return SDL_SetError("Failed to get a new framebuffer BO");
}
/* Add the pageflip to the request list. */
info.plane = dispdata->display_plane;
info.crtc_id = dispdata->crtc->crtc->crtc_id;
info.fb_id = fb->fb_id;
info.src_w = windata->src_w;
info.src_h = windata->src_h;
info.crtc_w = windata->output_w;
info.crtc_h = windata->output_h;
info.crtc_x = windata->output_x;
drm_atomic_set_plane_props(&info);
/* Do we have a pending modesetting? If so, set the necessary
props so it's included in the incoming atomic commit. */
if (dispdata->modeset_pending) {
SDL_VideoData *viddata = (SDL_VideoData *)_this->driverdata;
uint32_t blob_id;
dispdata->atomic_flags |= DRM_MODE_ATOMIC_ALLOW_MODESET;
add_connector_property(dispdata->atomic_req, dispdata->connector, "CRTC_ID", dispdata->crtc->crtc->crtc_id);
KMSDRM_drmModeCreatePropertyBlob(viddata->drm_fd, &dispdata->mode, sizeof(dispdata->mode), &blob_id);
add_crtc_property(dispdata->atomic_req, dispdata->crtc, "MODE_ID", blob_id);
add_crtc_property(dispdata->atomic_req, dispdata->crtc, "ACTIVE", 1);
dispdata->modeset_pending = SDL_FALSE;
}
/* Issue the one and only atomic commit where all changes will be requested!.
Blocking for double buffering: won't return until completed. */
if (drm_atomic_commit(_this, SDL_TRUE)) {
return SDL_SetError("Failed to issue atomic commit");
}
/* Release last front buffer so EGL can chose it as back buffer and render on it again. */
if (windata->bo) {
KMSDRM_gbm_surface_release_buffer(windata->gs, windata->bo);
}
/* Take note of current front buffer, so we can free it next time we come here. */
windata->bo = windata->next_bo;
return 0;
}
int
KMSDRM_GLES_SwapWindow(_THIS, SDL_Window * window)
{
SDL_WindowData *windata = ((SDL_WindowData *) window->driverdata);
if (windata->swap_window == NULL) {
/* We want the fenced version by default, but it needs extensions. */
if ( (SDL_GetHintBoolean(SDL_HINT_VIDEO_DOUBLE_BUFFER, SDL_FALSE)) ||
(!SDL_EGL_HasExtension(_this, SDL_EGL_DISPLAY_EXTENSION, "EGL_ANDROID_native_fence_sync")) )
{
windata->swap_window = KMSDRM_GLES_SwapWindowDoubleBuffered;
} else {
windata->swap_window = KMSDRM_GLES_SwapWindowFenced;
}
}
return windata->swap_window(_this, window);
}
/***************************************/
/* End of Atomic functions block */
/***************************************/
SDL_EGL_MakeCurrent_impl(KMSDRM)
#endif /* SDL_VIDEO_DRIVER_KMSDRM && SDL_VIDEO_OPENGL_EGL */
externals/SDL/src/video/kmsdrm/SDL_kmsdrmopengles.h
Vendored
+2 -1
View File
@@ -1,6 +1,7 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
Atomic KMSDRM backend by Manuel Alfayate Corchete <redwindwanderer@gmail.com>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
@@ -31,10 +32,10 @@
/* OpenGLES functions */
#define KMSDRM_GLES_GetAttribute SDL_EGL_GetAttribute
#define KMSDRM_GLES_GetProcAddress SDL_EGL_GetProcAddress
#define KMSDRM_GLES_UnloadLibrary SDL_EGL_UnloadLibrary
#define KMSDRM_GLES_DeleteContext SDL_EGL_DeleteContext
#define KMSDRM_GLES_GetSwapInterval SDL_EGL_GetSwapInterval
extern void KMSDRM_GLES_DefaultProfileConfig(_THIS, int *mask, int *major, int *minor);
extern int KMSDRM_GLES_SetSwapInterval(_THIS, int interval);
extern int KMSDRM_GLES_LoadLibrary(_THIS, const char *path);
extern SDL_GLContext KMSDRM_GLES_CreateContext(_THIS, SDL_Window * window);
externals/SDL/src/video/kmsdrm/SDL_kmsdrmsym.h
Vendored
+40 -12
View File
@@ -40,28 +40,51 @@ SDL_KMSDRM_SYM(void,drmModeFreeFB,(drmModeFBPtr ptr))
SDL_KMSDRM_SYM(void,drmModeFreeCrtc,(drmModeCrtcPtr ptr))
SDL_KMSDRM_SYM(void,drmModeFreeConnector,(drmModeConnectorPtr ptr))
SDL_KMSDRM_SYM(void,drmModeFreeEncoder,(drmModeEncoderPtr ptr))
SDL_KMSDRM_SYM(int,drmGetCap,(int fd, uint64_t capability, uint64_t *value))
SDL_KMSDRM_SYM(int,drmIoctl,(int fd, unsigned long request, void *arg))
SDL_KMSDRM_SYM(drmModeResPtr,drmModeGetResources,(int fd))
SDL_KMSDRM_SYM(int,drmModeAddFB,(int fd, uint32_t width, uint32_t height, uint8_t depth,
uint8_t bpp, uint32_t pitch, uint32_t bo_handle,
uint32_t *buf_id))
SDL_KMSDRM_SYM(int,drmModeAddFB2,(int fd, uint32_t width, uint32_t height,
uint32_t pixel_format, const uint32_t bo_handles[4],
const uint32_t pitches[4], const uint32_t offsets[4],
uint32_t *buf_id, uint32_t flags))
SDL_KMSDRM_SYM(int,drmModeAddFB2WithModifiers,(int fd, uint32_t width, uint32_t height,
uint32_t pixel_format, const uint32_t bo_handles[4],
const uint32_t pitches[4], const uint32_t offsets[4],
const uint64_t modifier[4], uint32_t *buf_id,
uint32_t flags))
SDL_KMSDRM_SYM(int,drmModeRmFB,(int fd, uint32_t bufferId))
SDL_KMSDRM_SYM(drmModeFBPtr,drmModeGetFB,(int fd, uint32_t buf))
SDL_KMSDRM_SYM(drmModeCrtcPtr,drmModeGetCrtc,(int fd, uint32_t crtcId))
SDL_KMSDRM_SYM(int,drmModeSetCrtc,(int fd, uint32_t crtcId, uint32_t bufferId,
uint32_t x, uint32_t y, uint32_t *connectors, int count,
drmModeModeInfoPtr mode))
SDL_KMSDRM_SYM(int,drmModeSetCursor,(int fd, uint32_t crtcId, uint32_t bo_handle,
uint32_t width, uint32_t height))
SDL_KMSDRM_SYM(int,drmModeSetCursor2,(int fd, uint32_t crtcId, uint32_t bo_handle,
uint32_t width, uint32_t height,
int32_t hot_x, int32_t hot_y))
SDL_KMSDRM_SYM(int,drmModeMoveCursor,(int fd, uint32_t crtcId, int x, int y))
SDL_KMSDRM_SYM(drmModeEncoderPtr,drmModeGetEncoder,(int fd, uint32_t encoder_id))
SDL_KMSDRM_SYM(drmModeConnectorPtr,drmModeGetConnector,(int fd, uint32_t connector_id))
SDL_KMSDRM_SYM(int,drmHandleEvent,(int fd,drmEventContextPtr evctx))
SDL_KMSDRM_SYM(int,drmModePageFlip,(int fd, uint32_t crtc_id, uint32_t fb_id,
uint32_t flags, void *user_data))
/* Atomic functions */
SDL_KMSDRM_SYM(int,drmSetClientCap,(int fd, uint64_t capability, uint64_t value))
SDL_KMSDRM_SYM(drmModePlaneResPtr,drmModeGetPlaneResources,(int fd))
SDL_KMSDRM_SYM(drmModePlanePtr,drmModeGetPlane,(int fd, uint32_t plane_id))
SDL_KMSDRM_SYM(drmModeObjectPropertiesPtr,drmModeObjectGetProperties,(int fd,uint32_t object_id,uint32_t object_type))
SDL_KMSDRM_SYM(drmModePropertyPtr,drmModeGetProperty,(int fd, uint32_t propertyId))
SDL_KMSDRM_SYM(void,drmModeFreeProperty,(drmModePropertyPtr ptr))
SDL_KMSDRM_SYM(void,drmModeFreeObjectProperties,(drmModeObjectPropertiesPtr ptr))
SDL_KMSDRM_SYM(void,drmModeFreePlane,(drmModePlanePtr ptr))
SDL_KMSDRM_SYM(void,drmModeFreePlaneResources,(drmModePlaneResPtr ptr))
SDL_KMSDRM_SYM(drmModeAtomicReqPtr,drmModeAtomicAlloc,(void))
SDL_KMSDRM_SYM(void,drmModeAtomicFree,(drmModeAtomicReqPtr req))
SDL_KMSDRM_SYM(int,drmModeAtomicCommit,(int fd,drmModeAtomicReqPtr req,uint32_t flags,void *user_data))
SDL_KMSDRM_SYM(int,drmModeAtomicAddProperty,(drmModeAtomicReqPtr req,uint32_t object_id,uint32_t property_id,uint64_t value))
SDL_KMSDRM_SYM(int,drmModeCreatePropertyBlob,(int fd,const void *data,size_t size,uint32_t *id))
/* End of atomic fns */
SDL_KMSDRM_MODULE(GBM)
SDL_KMSDRM_SYM(int,gbm_device_get_fd,(struct gbm_device *gbm))
@@ -72,6 +95,11 @@ SDL_KMSDRM_SYM(struct gbm_device *,gbm_create_device,(int fd))
SDL_KMSDRM_SYM(unsigned int,gbm_bo_get_width,(struct gbm_bo *bo))
SDL_KMSDRM_SYM(unsigned int,gbm_bo_get_height,(struct gbm_bo *bo))
SDL_KMSDRM_SYM(uint32_t,gbm_bo_get_stride,(struct gbm_bo *bo))
SDL_KMSDRM_SYM(uint32_t,gbm_bo_get_stride_for_plane,(struct gbm_bo *bo,int plane))
SDL_KMSDRM_SYM(uint32_t,gbm_bo_get_format,(struct gbm_bo *bo))
SDL_KMSDRM_SYM(uint32_t,gbm_bo_get_offset,(struct gbm_bo *bo, int plane))
SDL_KMSDRM_SYM(int,gbm_bo_get_plane_count,(struct gbm_bo *bo))
SDL_KMSDRM_SYM(union gbm_bo_handle,gbm_bo_get_handle,(struct gbm_bo *bo))
SDL_KMSDRM_SYM(int,gbm_bo_write,(struct gbm_bo *bo, const void *buf, size_t count))
SDL_KMSDRM_SYM(struct gbm_device *,gbm_bo_get_device,(struct gbm_bo *bo))
externals/SDL/src/video/kmsdrm/SDL_kmsdrmvideo.c
Vendored
+1367 -348
View File
File diff suppressed because it is too large Load Diff
externals/SDL/src/video/kmsdrm/SDL_kmsdrmvideo.h
Vendored
+132 -30
View File
@@ -1,6 +1,7 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
Atomic KMSDRM backend by Manuel Alfayate Corchete <redwindwanderer@gmail.com>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
@@ -30,63 +31,163 @@
#include <unistd.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#include <gbm.h>
#include <assert.h>
#if SDL_VIDEO_OPENGL_EGL
#include <EGL/egl.h>
#include <EGL/eglext.h>
#endif
/****************************************************************************************/
/* Driverdata pointers are void struct* used to store backend-specific variables */
/* and info that supports the SDL-side structs like SDL Display Devices, SDL_Windows... */
/* which need to be "supported" with backend-side info and mechanisms to work. */
/****************************************************************************************/
typedef struct SDL_VideoData
{
int devindex; /* device index that was passed on creation */
int drm_fd; /* DRM file desc */
struct gbm_device *gbm;
char devpath[32]; /* DRM dev path. */
struct gbm_device *gbm_dev;
SDL_Window **windows;
int max_windows;
int num_windows;
unsigned int max_windows;
unsigned int num_windows;
SDL_bool video_init; /* Has VideoInit succeeded? */
} SDL_VideoData;
typedef struct plane {
drmModePlane *plane;
drmModeObjectProperties *props;
drmModePropertyRes **props_info;
} plane;
typedef struct crtc {
drmModeCrtc *crtc;
drmModeObjectProperties *props;
drmModePropertyRes **props_info;
} crtc;
typedef struct connector {
drmModeConnector *connector;
drmModeObjectProperties *props;
drmModePropertyRes **props_info;
} connector;
/* More general driverdata info that gives support and substance to the SDL_Display. */
typedef struct SDL_DisplayData
{
drmModeModeInfo mode;
drmModeModeInfo preferred_mode;
uint32_t atomic_flags;
plane *display_plane;
plane *cursor_plane;
crtc *crtc;
connector *connector;
/* Central atomic request list, used for the prop
changeset related to pageflip in SwapWindow. */
drmModeAtomicReq *atomic_req;
int kms_in_fence_fd;
int kms_out_fence_fd;
EGLSyncKHR kms_fence;
EGLSyncKHR gpu_fence;
#if SDL_VIDEO_OPENGL_EGL
EGLSurface old_egl_surface;
#endif
SDL_bool modeset_pending;
SDL_bool gbm_init;
/* DRM & GBM cursor stuff lives here, not in an SDL_Cursor's driverdata 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 driverdata).
There's only one cursor GBM BO because we only support one cursor. */
struct gbm_bo *cursor_bo;
uint64_t cursor_w, cursor_h;
} SDL_DisplayData;
/* Driverdata info that gives KMSDRM-side support and substance to the SDL_Window. */
typedef 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 driverdata 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;
#if SDL_VIDEO_OPENGL_EGL
EGLSurface egl_surface;
#endif
/* For scaling and AR correction. */
int32_t src_w;
int32_t src_h;
int32_t output_w;
int32_t output_h;
int32_t output_x;
/* This dictates what approach we'll use for SwapBuffers. */
int (*swap_window)(_THIS, SDL_Window * window);
} SDL_WindowData;
typedef struct SDL_DisplayModeData
{
int mode_index;
} SDL_DisplayModeData;
typedef struct SDL_DisplayData
{
uint32_t crtc_id;
drmModeConnector *conn;
drmModeModeInfo mode;
drmModeCrtc *saved_crtc; /* CRTC to restore on quit */
} SDL_DisplayData;
typedef struct SDL_WindowData
{
SDL_VideoData *viddata;
struct gbm_surface *gs;
struct gbm_bo *curr_bo;
struct gbm_bo *next_bo;
struct gbm_bo *crtc_bo;
SDL_bool waiting_for_flip;
SDL_bool double_buffer;
#if SDL_VIDEO_OPENGL_EGL
int egl_surface_dirty;
EGLSurface egl_surface;
#endif
} SDL_WindowData;
typedef struct KMSDRM_FBInfo
{
int drm_fd; /* DRM file desc */
uint32_t fb_id; /* DRM framebuffer ID */
} KMSDRM_FBInfo;
typedef struct KMSDRM_PlaneInfo
{
struct plane *plane;
uint32_t fb_id;
uint32_t crtc_id;
int32_t src_x;
int32_t src_y;
int32_t src_w;
int32_t src_h;
int32_t crtc_x;
int32_t crtc_y;
int32_t crtc_w;
int32_t crtc_h;
} KMSDRM_PlaneInfo;
/* Helper functions */
int KMSDRM_CreateSurfaces(_THIS, SDL_Window * window);
int KMSDRM_CreateEGLSurface(_THIS, SDL_Window * window);
KMSDRM_FBInfo *KMSDRM_FBFromBO(_THIS, struct gbm_bo *bo);
SDL_bool KMSDRM_WaitPageFlip(_THIS, SDL_WindowData *windata, int timeout);
/* Atomic functions that are used from SDL_kmsdrmopengles.c and SDL_kmsdrmmouse.c */
void drm_atomic_set_plane_props(struct KMSDRM_PlaneInfo *info);
void drm_atomic_waitpending(_THIS);
int drm_atomic_commit(_THIS, SDL_bool blocking);
int add_plane_property(drmModeAtomicReq *req, struct plane *plane,
const char *name, uint64_t value);
int add_crtc_property(drmModeAtomicReq *req, struct crtc *crtc,
const char *name, uint64_t value);
int add_connector_property(drmModeAtomicReq *req, struct connector *connector,
const char *name, uint64_t value);
int setup_plane(_THIS, struct plane **plane, uint32_t plane_type);
void free_plane(struct plane **plane);
/****************************************************************************/
/* SDL_VideoDevice functions declaration */
@@ -103,6 +204,7 @@ void KMSDRM_SetWindowTitle(_THIS, SDL_Window * window);
void KMSDRM_SetWindowIcon(_THIS, SDL_Window * window, SDL_Surface * icon);
void KMSDRM_SetWindowPosition(_THIS, SDL_Window * window);
void KMSDRM_SetWindowSize(_THIS, SDL_Window * window);
void KMSDRM_SetWindowFullscreen(_THIS, SDL_Window * window, SDL_VideoDisplay * _display, SDL_bool fullscreen);
void KMSDRM_ShowWindow(_THIS, SDL_Window * window);
void KMSDRM_HideWindow(_THIS, SDL_Window * window);
void KMSDRM_RaiseWindow(_THIS, SDL_Window * window);
externals/SDL/src/video/kmsdrm/SDL_kmsdrmvulkan.c
Vendored Executable
+408
View File
@@ -0,0 +1,408 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2020 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.
*/
/*
* @author Manuel Alfayate Corchere <redwindwanderer@gmail.com>.
* Based on Jacob Lifshay's SDL_x11vulkan.c.
*/
#include "../../SDL_internal.h"
#if SDL_VIDEO_VULKAN && SDL_VIDEO_DRIVER_KMSDRM
#include "SDL_kmsdrmvideo.h"
#include "SDL_kmsdrmdyn.h"
#include "SDL_assert.h"
#include "SDL_loadso.h"
#include "SDL_kmsdrmvulkan.h"
#include "SDL_syswm.h"
#include "sys/ioctl.h"
#if defined(__OpenBSD__)
#define DEFAULT_VULKAN "libvulkan.so"
#else
#define DEFAULT_VULKAN "libvulkan.so.1"
#endif
int KMSDRM_Vulkan_LoadLibrary(_THIS, const char *path)
{
VkExtensionProperties *extensions = NULL;
Uint32 i, extensionCount = 0;
SDL_bool hasSurfaceExtension = SDL_FALSE;
SDL_bool hasDisplayExtension = SDL_FALSE;
PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr = NULL;
if(_this->vulkan_config.loader_handle)
return SDL_SetError("Vulkan already loaded");
/* Load the Vulkan library */
if(!path)
path = SDL_getenv("SDL_VULKAN_LIBRARY");
if(!path)
path = DEFAULT_VULKAN;
_this->vulkan_config.loader_handle = SDL_LoadObject(path);
if(!_this->vulkan_config.loader_handle)
return -1;
SDL_strlcpy(_this->vulkan_config.loader_path, path,
SDL_arraysize(_this->vulkan_config.loader_path));
vkGetInstanceProcAddr = (PFN_vkGetInstanceProcAddr)SDL_LoadFunction(
_this->vulkan_config.loader_handle, "vkGetInstanceProcAddr");
if(!vkGetInstanceProcAddr)
goto fail;
_this->vulkan_config.vkGetInstanceProcAddr = (void *)vkGetInstanceProcAddr;
_this->vulkan_config.vkEnumerateInstanceExtensionProperties =
(void *)((PFN_vkGetInstanceProcAddr)_this->vulkan_config.vkGetInstanceProcAddr)(
VK_NULL_HANDLE, "vkEnumerateInstanceExtensionProperties");
if(!_this->vulkan_config.vkEnumerateInstanceExtensionProperties)
goto fail;
extensions = SDL_Vulkan_CreateInstanceExtensionsList(
(PFN_vkEnumerateInstanceExtensionProperties)
_this->vulkan_config.vkEnumerateInstanceExtensionProperties,
&extensionCount);
if(!extensions)
goto fail;
for(i = 0; i < extensionCount; i++)
{
if(SDL_strcmp(VK_KHR_SURFACE_EXTENSION_NAME, extensions[i].extensionName) == 0)
hasSurfaceExtension = SDL_TRUE;
else if(SDL_strcmp(VK_KHR_DISPLAY_EXTENSION_NAME, extensions[i].extensionName) == 0)
hasDisplayExtension = SDL_TRUE;
}
SDL_free(extensions);
if(!hasSurfaceExtension)
{
SDL_SetError("Installed Vulkan doesn't implement the "
VK_KHR_SURFACE_EXTENSION_NAME " extension");
goto fail;
}
else if(!hasDisplayExtension)
{
SDL_SetError("Installed Vulkan doesn't implement the "
VK_KHR_DISPLAY_EXTENSION_NAME "extension");
goto fail;
}
return 0;
fail:
SDL_UnloadObject(_this->vulkan_config.loader_handle);
_this->vulkan_config.loader_handle = NULL;
return -1;
}
void KMSDRM_Vulkan_UnloadLibrary(_THIS)
{
if(_this->vulkan_config.loader_handle)
{
SDL_UnloadObject(_this->vulkan_config.loader_handle);
_this->vulkan_config.loader_handle = NULL;
}
}
/*********************************************************************/
/* Here we can put whatever Vulkan extensions we want to be enabled */
/* at instance creation, which is done in the programs, not in SDL. */
/* So: programs call SDL_Vulkan_GetInstanceExtensions() and here */
/* we put the extensions specific to this backend so the programs */
/* get a list with the extension we want, so they can include that */
/* list in the ppEnabledExtensionNames and EnabledExtensionCount */
/* members of the VkInstanceCreateInfo struct passed to */
/* vkCreateInstance(). */
/*********************************************************************/
SDL_bool KMSDRM_Vulkan_GetInstanceExtensions(_THIS,
SDL_Window *window,
unsigned *count,
const char **names)
{
static const char *const extensionsForKMSDRM[] = {
VK_KHR_SURFACE_EXTENSION_NAME, VK_KHR_DISPLAY_EXTENSION_NAME
};
if(!_this->vulkan_config.loader_handle)
{
SDL_SetError("Vulkan is not loaded");
return SDL_FALSE;
}
return SDL_Vulkan_GetInstanceExtensions_Helper(
count, names, SDL_arraysize(extensionsForKMSDRM),
extensionsForKMSDRM);
}
void KMSDRM_Vulkan_GetDrawableSize(_THIS, SDL_Window *window, int *w, int *h)
{
if (w) {
*w = window->w;
}
if (h) {
*h = window->h;
}
}
/***********************************************************************/
/* First thing to know is that we don't call vkCreateInstance() here. */
/* Instead, programs using SDL and Vulkan create their Vulkan instance */
/* and we get it here, ready to use. */
/* Extensions specific for this platform are activated in */
/* KMSDRM_Vulkan_GetInstanceExtensions(), like we do with */
/* VK_KHR_DISPLAY_EXTENSION_NAME, which is what we need for x-less VK. */
/***********************************************************************/
SDL_bool KMSDRM_Vulkan_CreateSurface(_THIS,
SDL_Window *window,
VkInstance instance,
VkSurfaceKHR *surface)
{
VkPhysicalDevice gpu;
uint32_t gpu_count;
uint32_t display_count;
uint32_t mode_count;
uint32_t plane_count;
VkPhysicalDevice *physical_devices = NULL;
VkDisplayPropertiesKHR *displays_props = NULL;
VkDisplayModePropertiesKHR *modes_props = NULL;
VkDisplayPlanePropertiesKHR *planes_props = NULL;
VkDisplayModeCreateInfoKHR display_mode_create_info;
VkDisplaySurfaceCreateInfoKHR display_plane_surface_create_info;
VkExtent2D image_size;
VkDisplayModeKHR display_mode;
VkDisplayModePropertiesKHR display_mode_props = {0};
VkResult result;
SDL_bool ret = SDL_FALSE;
/* We don't receive a display index in KMSDRM_CreateDevice(), only
a device index, which determines the GPU to use, but not the output.
So we simply use the first connected output (ie, the first connected
video output) for now.
In other words, change this index to select a different output. Easy! */
int display_index = 0;
int i;
SDL_VideoData *viddata = ((SDL_VideoData *)_this->driverdata);
/* Get the function pointers for the functions we will use. */
PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr =
(PFN_vkGetInstanceProcAddr)_this->vulkan_config.vkGetInstanceProcAddr;
PFN_vkCreateDisplayPlaneSurfaceKHR vkCreateDisplayPlaneSurfaceKHR =
(PFN_vkCreateDisplayPlaneSurfaceKHR)vkGetInstanceProcAddr(
instance, "vkCreateDisplayPlaneSurfaceKHR");
PFN_vkEnumeratePhysicalDevices vkEnumeratePhysicalDevices =
(PFN_vkEnumeratePhysicalDevices)vkGetInstanceProcAddr(
instance, "vkEnumeratePhysicalDevices");
PFN_vkGetPhysicalDeviceDisplayPropertiesKHR vkGetPhysicalDeviceDisplayPropertiesKHR =
(PFN_vkGetPhysicalDeviceDisplayPropertiesKHR)vkGetInstanceProcAddr(
instance, "vkGetPhysicalDeviceDisplayPropertiesKHR");
PFN_vkGetDisplayModePropertiesKHR vkGetDisplayModePropertiesKHR =
(PFN_vkGetDisplayModePropertiesKHR)vkGetInstanceProcAddr(
instance, "vkGetDisplayModePropertiesKHR");
PFN_vkGetPhysicalDeviceDisplayPlanePropertiesKHR vkGetPhysicalDeviceDisplayPlanePropertiesKHR =
(PFN_vkGetPhysicalDeviceDisplayPlanePropertiesKHR)vkGetInstanceProcAddr(
instance, "vkGetPhysicalDeviceDisplayPlanePropertiesKHR");
/*PFN_vkGetDisplayPlaneSupportedDisplaysKHR vkGetDisplayPlaneSupportedDisplaysKHR =
(PFN_vkGetDisplayPlaneSupportedDisplaysKHR)vkGetInstanceProcAddr(
instance, "vkGetDisplayPlaneSupportedDisplaysKHR");
PFN_vkGetDisplayPlaneCapabilitiesKHR vkGetDisplayPlaneCapabilitiesKHR =
(PFN_vkGetDisplayPlaneCapabilitiesKHR)vkGetInstanceProcAddr(
instance, "vkGetDisplayPlaneCapabilitiesKHR");
*/
PFN_vkCreateDisplayModeKHR vkCreateDisplayModeKHR =
(PFN_vkCreateDisplayModeKHR)vkGetInstanceProcAddr(
instance, "vkCreateDisplayModeKHR");
if(!_this->vulkan_config.loader_handle)
{
SDL_SetError("Vulkan is not loaded");
goto clean;
}
/*************************************/
/* Block for vulkan surface creation */
/*************************************/
/****************************************************************/
/* If we got vkCreateDisplayPlaneSurfaceKHR() pointer, it means */
/* that the VK_KHR_Display extension is active on the instance. */
/* That's the central extension we need for x-less VK! */
/****************************************************************/
if(!vkCreateDisplayPlaneSurfaceKHR)
{
SDL_SetError(VK_KHR_DISPLAY_EXTENSION_NAME
" extension is not enabled in the Vulkan instance.");
goto clean;
}
/* Get the physical device count. */
vkEnumeratePhysicalDevices(instance, &gpu_count, NULL);
if (gpu_count == 0) {
SDL_SetError("Vulkan can't find physical devices (gpus).");
goto clean;
}
/* Get the physical devices. */
physical_devices = malloc(sizeof(VkPhysicalDevice) * gpu_count);
vkEnumeratePhysicalDevices(instance, &gpu_count, physical_devices);
/* A GPU (or physical_device, in vkcube terms) is a GPU. A machine with more
than one video output doen't need to have more than one GPU, like the Pi4
which has 1 GPU and 2 video outputs.
We grab the GPU/physical_device with the index we got in KMSDR_CreateDevice(). */
gpu = physical_devices[viddata->devindex];
/* A display is a video output. 1 GPU can have N displays.
Vulkan only counts the connected displays.
Get the display count of the GPU. */
vkGetPhysicalDeviceDisplayPropertiesKHR(gpu, &display_count, NULL);
if (display_count == 0) {
SDL_SetError("Vulkan can't find any displays.");
goto clean;
}
/* Get the props of the displays of the physical device. */
displays_props = (VkDisplayPropertiesKHR *) malloc(display_count * sizeof(*displays_props));
vkGetPhysicalDeviceDisplayPropertiesKHR(gpu,
&display_count,
displays_props);
/* Get the videomode count for the first display. */
vkGetDisplayModePropertiesKHR(gpu,
displays_props[display_index].display,
&mode_count, NULL);
if (mode_count == 0) {
SDL_SetError("Vulkan can't find any video modes for display %i (%s)\n", 0,
displays_props[display_index].displayName);
goto clean;
}
/* Get the props of the videomodes for the first display. */
modes_props = (VkDisplayModePropertiesKHR *) malloc(mode_count * sizeof(*modes_props));
vkGetDisplayModePropertiesKHR(gpu,
displays_props[display_index].display,
&mode_count, modes_props);
/* Get the planes count of the physical device. */
vkGetPhysicalDeviceDisplayPlanePropertiesKHR(gpu, &plane_count, NULL);
if (plane_count == 0) {
SDL_SetError("Vulkan can't find any planes.");
goto clean;
}
/* Get the props of the planes for the physical device. */
planes_props = malloc(sizeof(VkDisplayPlanePropertiesKHR) * plane_count);
vkGetPhysicalDeviceDisplayPlanePropertiesKHR(gpu, &plane_count, planes_props);
/* Get a video mode equal or smaller than the window size. REMEMBER:
We have to get a small enough videomode for the window size,
because videomode determines how big the scanout region is and we can't
scanout a region bigger than the window (we would be reading past the
buffer, and Vulkan would give us a confusing VK_ERROR_SURFACE_LOST_KHR). */
for (i = 0; i < mode_count; i++) {
if (modes_props[i].parameters.visibleRegion.width <= window->w &&
modes_props[i].parameters.visibleRegion.height <= window->h)
{
display_mode_props = modes_props[i];
break;
}
}
if (display_mode_props.parameters.visibleRegion.width == 0
|| display_mode_props.parameters.visibleRegion.height == 0)
{
SDL_SetError("Vulkan can't find a proper display mode for the window size.");
goto clean;
}
/* We have the props of the display mode, but we need an actual display mode. */
display_mode_create_info.sType = VK_STRUCTURE_TYPE_DISPLAY_MODE_CREATE_INFO_KHR;
display_mode_create_info.parameters = display_mode_props.parameters;
result = vkCreateDisplayModeKHR(gpu,
displays_props[display_index].display,
&display_mode_create_info,
NULL, &display_mode);
if (result != VK_SUCCESS) {
SDL_SetError("Vulkan can't create the display mode.");
goto clean;
}
/* Let's finally create the Vulkan surface! */
image_size.width = window->w;
image_size.height = window->h;
display_plane_surface_create_info.sType = VK_STRUCTURE_TYPE_DISPLAY_SURFACE_CREATE_INFO_KHR;
display_plane_surface_create_info.displayMode = display_mode;
/* For now, simply use the first plane. */
display_plane_surface_create_info.planeIndex = 0;
display_plane_surface_create_info.imageExtent = image_size;
result = vkCreateDisplayPlaneSurfaceKHR(instance,
&display_plane_surface_create_info,
NULL,
surface);
if(result != VK_SUCCESS)
{
SDL_SetError("vkCreateKMSDRMSurfaceKHR failed: %s",
SDL_Vulkan_GetResultString(result));
goto clean;
}
ret = SDL_TRUE;
clean:
if (physical_devices)
free (physical_devices);
if (displays_props)
free (displays_props);
if (planes_props)
free (planes_props);
if (modes_props)
free (modes_props);
return ret;
}
#endif
/* vim: set ts=4 sw=4 expandtab: */
externals/SDL/src/video/kmsdrm/SDL_kmsdrmvulkan.h
Vendored Executable
+53
View File
@@ -0,0 +1,53 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2020 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.
*/
/*
* @author Manuel Alfayate Corchere <redwindwanderer@gmail.com>.
* Based on Jacob Lifshay's SDL_x11vulkan.c.
*/
#include "../../SDL_internal.h"
#ifndef SDL_kmsdrmvulkan_h_
#define SDL_kmsdrmvulkan_h_
#include "../SDL_vulkan_internal.h"
#include "../SDL_sysvideo.h"
#if SDL_VIDEO_VULKAN && SDL_VIDEO_DRIVER_KMSDRM
int KMSDRM_Vulkan_LoadLibrary(_THIS, const char *path);
void KMSDRM_Vulkan_UnloadLibrary(_THIS);
SDL_bool KMSDRM_Vulkan_GetInstanceExtensions(_THIS,
SDL_Window *window,
unsigned *count,
const char **names);
void KMSDRM_Vulkan_GetDrawableSize(_THIS, SDL_Window *window, int *w, int *h);
SDL_bool KMSDRM_Vulkan_CreateSurface(_THIS,
SDL_Window *window,
VkInstance instance,
VkSurfaceKHR *surface);
#endif
#endif /* SDL_kmsdrmvulkan_h_ */
/* vi: set ts=4 sw=4 expandtab: */