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tune implementation of GAL_AttachSharedRGBSurface

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Vincent Wei
2020-01-15 10:14:20 +08:00
parent ddc4453be4
commit a97e344b45
1 changed files with 32 additions and 65 deletions
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src/newgal/surface-shared.c
+32 -65
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@@ -324,14 +324,9 @@ GAL_Surface * GAL_AttachSharedRGBSurface (int fd, size_t map_size,
{
GAL_VideoDevice *video;
GAL_Surface *surface;
int prot = PROT_READ;
void* data_map = MAP_FAILED;
GAL_SharedSurfaceHeader* hdr;
if (with_wr) {
prot |= PROT_WRITE;
}
if (map_size == 0) {
struct stat statbuf;
if (fstat (fd, &statbuf)) {
@@ -343,61 +338,50 @@ GAL_Surface * GAL_AttachSharedRGBSurface (int fd, size_t map_size,
_DBG_PRINTF("map_size got by calling fstat: %lu\n", map_size);
}
/* XXX: checke to see whether the surface is created by hardware first */
data_map = mmap (NULL, map_size, prot, MAP_SHARED, fd, 0);
if (data_map == MAP_FAILED) {
_ERR_PRINTF("NEWGAL: Failed to map shared RGB surface: %d\n", fd);
return NULL;
}
/* XXX: We may find the video according to engine name in the future */
video = __mg_current_video;
/* Allocate the surface */
surface = (GAL_Surface *)malloc (sizeof (*surface));
if (surface == NULL) {
goto error;
}
hdr = (GAL_SharedSurfaceHeader*) data_map;
surface->shared_header = hdr;
/* check flags */
if (hdr->byhw) {
if ((flags & (GAL_SRCCOLORKEY | GAL_SRCALPHA)) != 0) {
flags |= GAL_HWSURFACE;
}
if ((flags & GAL_SRCCOLORKEY) == GAL_SRCCOLORKEY) {
if (!video->info.blit_hw_CC) {
flags &= ~GAL_HWSURFACE;
}
}
if ((flags & GAL_SRCALPHA) == GAL_SRCALPHA) {
if (!video->info.blit_hw_A) {
flags &= ~GAL_HWSURFACE;
}
}
}
else {
flags &= ~GAL_HWSURFACE;
}
if ((flags & GAL_HWSURFACE) == GAL_HWSURFACE) {
surface->flags = GAL_HWSURFACE;
surface->video = video;
video = __mg_current_video;
}
else {
surface->flags = GAL_SWSURFACE;
surface->video = NULL;
video = NULL;
}
if (hdr->Amask) {
surface->flags |= GAL_SRCPIXELALPHA;
surface->video = video;
surface->flags = flags;
surface->shared_header = NULL;
if (video && video->AttachSharedHWSurface) {
// this method should fill hwdata and shared_header fields if success
video->AttachSharedHWSurface (video, surface, fd, map_size, with_wr);
}
if (surface->shared_header == NULL) {
// fallback to software
int prot = PROT_READ;
if (with_wr) {
prot |= PROT_WRITE;
}
data_map = mmap (NULL, map_size, prot, MAP_SHARED, fd, 0);
if (data_map == MAP_FAILED) {
_ERR_PRINTF("NEWGAL: Failed to map shared RGB surface: %d\n", fd);
return NULL;
}
surface->hwdata = NULL;
surface->shared_header = (GAL_SharedSurfaceHeader*) data_map;
}
/* map successfully */
hdr = surface->shared_header;
surface->pixels = hdr->buf;
surface->format = GAL_AllocFormat (hdr->depth,
hdr->Rmask, hdr->Gmask, hdr->Bmask, hdr->Amask);
if (surface->format == NULL) {
@@ -411,7 +395,6 @@ GAL_Surface * GAL_AttachSharedRGBSurface (int fd, size_t map_size,
surface->offset = 0;
// for off-screen surface, DPI always be the default value
surface->dpi = GDCAP_DPI_DEFAULT;
surface->hwdata = NULL;
surface->map = NULL;
surface->format_version = 0;
GAL_SetClipRect (surface, NULL);
@@ -421,22 +404,6 @@ GAL_Surface * GAL_AttachSharedRGBSurface (int fd, size_t map_size,
InitClipRgn (&surface->update_region, &__mg_free_update_region_list);
#endif
/* Get the pixels */
if (surface->w && surface->h) {
if (video && video->AttachSharedHWSurface) {
munmap (data_map, map_size);
data_map = MAP_FAILED;
surface->shared_header = NULL;
video->AttachSharedHWSurface (video, surface, fd);
}
if (surface->shared_header == NULL) {
goto error;
}
surface->pixels = surface->shared_header->buf;
}
/* Allocate an empty mapping */
surface->map = GAL_AllocBlitMap();
if (surface->map == NULL) {
@@ -452,8 +419,8 @@ error:
if (video && video->DettachSharedHWSurface) {
video->DettachSharedHWSurface (video, surface);
}
munmap (data_map, map_size);
else
munmap (data_map, map_size);
}
if (surface)