static void
pixman_renderer_attach(struct weston_surface *es, struct weston_buffer *buffer)
{
struct pixman_surface_state *ps = get_surface_state(es);
struct wl_shm_buffer *shm_buffer;
pixman_format_code_t pixman_format;
weston_buffer_reference(&ps->buffer_ref, buffer);
if (ps->image) {
pixman_image_unref(ps->image);
ps->image = NULL;
}
if (!buffer)
return;
shm_buffer = wl_shm_buffer_get(buffer->resource);
if (! shm_buffer) {
weston_log("Pixman renderer supports only SHM buffers\n");
weston_buffer_reference(&ps->buffer_ref, NULL);
return;
}
switch (wl_shm_buffer_get_format(shm_buffer)) {
case WL_SHM_FORMAT_XRGB8888:
pixman_format = PIXMAN_x8r8g8b8;
break;
case WL_SHM_FORMAT_ARGB8888:
pixman_format = PIXMAN_a8r8g8b8;
break;
case WL_SHM_FORMAT_RGB565:
pixman_format = PIXMAN_r5g6b5;
break;
default:
weston_log("Unsupported SHM buffer format\n");
weston_buffer_reference(&ps->buffer_ref, NULL);
return;
break;
}
buffer->shm_buffer = shm_buffer;
buffer->width = wl_shm_buffer_get_width(shm_buffer);
buffer->height = wl_shm_buffer_get_height(shm_buffer);
ps->image = pixman_image_create_bits(pixman_format,
buffer->width, buffer->height,
wl_shm_buffer_get_data(shm_buffer),
wl_shm_buffer_get_stride(shm_buffer));
}
static bool
shm_attach(struct wlc_surface *surface, struct wlc_buffer *buffer, struct wl_shm_buffer *shm_buffer)
{
assert(surface && buffer && shm_buffer);
buffer->shm_buffer = shm_buffer;
buffer->size.w = wl_shm_buffer_get_width(shm_buffer);
buffer->size.h = wl_shm_buffer_get_height(shm_buffer);
GLint pitch;
GLenum gl_format, gl_pixel_type;
switch (wl_shm_buffer_get_format(shm_buffer)) {
case WL_SHM_FORMAT_XRGB8888:
pitch = wl_shm_buffer_get_stride(shm_buffer) / 4;
gl_format = GL_BGRA_EXT;
gl_pixel_type = GL_UNSIGNED_BYTE;
surface->format = SURFACE_RGB;
break;
case WL_SHM_FORMAT_ARGB8888:
pitch = wl_shm_buffer_get_stride(shm_buffer) / 4;
gl_format = GL_BGRA_EXT;
gl_pixel_type = GL_UNSIGNED_BYTE;
surface->format = SURFACE_RGBA;
break;
case WL_SHM_FORMAT_RGB565:
pitch = wl_shm_buffer_get_stride(shm_buffer) / 2;
gl_format = GL_RGB;
gl_pixel_type = GL_UNSIGNED_SHORT_5_6_5;
surface->format = SURFACE_RGB;
break;
default:
/* unknown shm buffer format */
return false;
}
struct wlc_view *view;
if ((view = convert_from_wlc_handle(surface->view, "view")) && view->x11.id)
surface->format = wlc_x11_window_get_surface_format(&view->x11);
surface_gen_textures(surface, 1);
GL_CALL(glBindTexture(GL_TEXTURE_2D, surface->textures[0]));
GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, pitch));
GL_CALL(glPixelStorei(GL_UNPACK_SKIP_PIXELS_EXT, 0));
GL_CALL(glPixelStorei(GL_UNPACK_SKIP_ROWS_EXT, 0));
wl_shm_buffer_begin_access(buffer->shm_buffer);
void *data = wl_shm_buffer_get_data(buffer->shm_buffer);
GL_CALL(glTexImage2D(GL_TEXTURE_2D, 0, gl_format, pitch, buffer->size.h, 0, gl_format, gl_pixel_type, data));
wl_shm_buffer_end_access(buffer->shm_buffer);
return true;
}
static void
shm_buffer_damaged (struct wl_buffer *wayland_buffer,
int32_t x,
int32_t y,
int32_t width,
int32_t height)
{
CoglandBuffer *buffer = wayland_buffer->user_data;
if (buffer->texture)
{
CoglPixelFormat format;
switch (wl_shm_buffer_get_format (wayland_buffer))
{
#if G_BYTE_ORDER == G_BIG_ENDIAN
case WL_SHM_FORMAT_ARGB8888:
format = COGL_PIXEL_FORMAT_ARGB_8888_PRE;
break;
case WL_SHM_FORMAT_XRGB8888:
format = COGL_PIXEL_FORMAT_ARGB_8888;
break;
#elif G_BYTE_ORDER == G_LITTLE_ENDIAN
case WL_SHM_FORMAT_ARGB8888:
format = COGL_PIXEL_FORMAT_BGRA_8888_PRE;
break;
case WL_SHM_FORMAT_XRGB8888:
format = COGL_PIXEL_FORMAT_BGRA_8888;
break;
#endif
default:
g_warn_if_reached ();
format = COGL_PIXEL_FORMAT_ARGB_8888;
}
cogl_texture_set_region (COGL_TEXTURE (buffer->texture),
x, y,
x, y,
width, height,
width, height,
format,
wl_shm_buffer_get_stride (wayland_buffer),
wl_shm_buffer_get_data (wayland_buffer));
}
}
static void
shm_buffer_get_cogl_pixel_format (struct wl_shm_buffer *shm_buffer,
CoglPixelFormat *format_out,
CoglTextureComponents *components_out)
{
CoglPixelFormat format;
CoglTextureComponents components = COGL_TEXTURE_COMPONENTS_RGBA;
switch (wl_shm_buffer_get_format (shm_buffer))
{
#if G_BYTE_ORDER == G_BIG_ENDIAN
case WL_SHM_FORMAT_ARGB8888:
format = COGL_PIXEL_FORMAT_ARGB_8888_PRE;
break;
case WL_SHM_FORMAT_XRGB8888:
format = COGL_PIXEL_FORMAT_ARGB_8888;
components = COGL_TEXTURE_COMPONENTS_RGB;
break;
#elif G_BYTE_ORDER == G_LITTLE_ENDIAN
case WL_SHM_FORMAT_ARGB8888:
format = COGL_PIXEL_FORMAT_BGRA_8888_PRE;
break;
case WL_SHM_FORMAT_XRGB8888:
format = COGL_PIXEL_FORMAT_BGRA_8888;
components = COGL_TEXTURE_COMPONENTS_RGB;
break;
#endif
default:
g_warn_if_reached ();
format = COGL_PIXEL_FORMAT_ARGB_8888;
}
if (format_out)
*format_out = format;
if (components_out)
*components_out = components;
}
static void
shm_buffer_get_cogl_pixel_format (struct wl_shm_buffer *shm_buffer,
CoglPixelFormat *format_out,
CoglPixelFormat *internal_format_out)
{
CoglPixelFormat format;
CoglPixelFormat internal_format = COGL_PIXEL_FORMAT_ANY;
switch (wl_shm_buffer_get_format (shm_buffer))
{
#if G_BYTE_ORDER == G_BIG_ENDIAN
case WL_SHM_FORMAT_ARGB8888:
format = COGL_PIXEL_FORMAT_ARGB_8888_PRE;
break;
case WL_SHM_FORMAT_XRGB8888:
format = COGL_PIXEL_FORMAT_ARGB_8888;
internal_format = COGL_PIXEL_FORMAT_RGB_888;
break;
#elif G_BYTE_ORDER == G_LITTLE_ENDIAN
case WL_SHM_FORMAT_ARGB8888:
format = COGL_PIXEL_FORMAT_BGRA_8888_PRE;
break;
case WL_SHM_FORMAT_XRGB8888:
format = COGL_PIXEL_FORMAT_BGRA_8888;
internal_format = COGL_PIXEL_FORMAT_BGR_888;
break;
#endif
default:
g_warn_if_reached ();
format = COGL_PIXEL_FORMAT_ARGB_8888;
}
if (format_out)
*format_out = format;
if (internal_format_out)
*internal_format_out = internal_format;
}
CoglTexture2D *
cogl_wayland_texture_2d_new_from_buffer (CoglContext *ctx,
struct wl_buffer *buffer,
CoglError **error)
{
if (wl_buffer_is_shm (buffer))
{
int stride = wl_shm_buffer_get_stride (buffer);
CoglPixelFormat format;
CoglPixelFormat internal_format = COGL_PIXEL_FORMAT_ANY;
switch (wl_shm_buffer_get_format (buffer))
{
#if G_BYTE_ORDER == G_BIG_ENDIAN
case WL_SHM_FORMAT_ARGB8888:
format = COGL_PIXEL_FORMAT_ARGB_8888_PRE;
break;
case WL_SHM_FORMAT_XRGB32:
format = COGL_PIXEL_FORMAT_ARGB_8888;
internal_format = COGL_PIXEL_FORMAT_RGB_888;
break;
#elif G_BYTE_ORDER == G_LITTLE_ENDIAN
case WL_SHM_FORMAT_ARGB8888:
format = COGL_PIXEL_FORMAT_BGRA_8888_PRE;
break;
case WL_SHM_FORMAT_XRGB8888:
format = COGL_PIXEL_FORMAT_BGRA_8888;
internal_format = COGL_PIXEL_FORMAT_BGR_888;
break;
#endif
default:
g_warn_if_reached ();
format = COGL_PIXEL_FORMAT_ARGB_8888;
}
return cogl_texture_2d_new_from_data (ctx,
buffer->width,
buffer->height,
format,
internal_format,
stride,
wl_shm_buffer_get_data (buffer),
error);
}
else
{
EGLImageKHR image;
CoglTexture2D *tex;
_COGL_RETURN_VAL_IF_FAIL (_cogl_context_get_winsys (ctx)->constraints &
COGL_RENDERER_CONSTRAINT_USES_EGL,
NULL);
image = _cogl_egl_create_image (ctx,
EGL_WAYLAND_BUFFER_WL,
buffer,
NULL);
tex = _cogl_egl_texture_2d_new_from_image (ctx,
buffer->width,
buffer->height,
COGL_PIXEL_FORMAT_ARGB_8888_PRE,
image,
error);
_cogl_egl_destroy_image (ctx, image);
return tex;
}
}
static void wstRendererNXCommitShm( WstRendererNX *renderer, WstRenderSurface *surface, struct wl_resource *resource )
{
struct wl_shm_buffer *shmBuffer;
int width, height, stride;
int pixelFormat, i;
void *data;
NEXUS_SurfaceMemory mem;
NEXUS_SurfaceComposition composition;
NEXUS_SurfaceHandle nexusSurface= 0;
shmBuffer= wl_shm_buffer_get( resource );
if ( shmBuffer )
{
width= wl_shm_buffer_get_width(shmBuffer);
height= wl_shm_buffer_get_height(shmBuffer);
stride= wl_shm_buffer_get_stride(shmBuffer);
// The SHM formats describe the structure of the color channels for a pixel as
// they would appear in a machine register not the byte order in memory. For
// example WL_SHM_FORMAT_ARGB8888 is a 32 bit pixel with alpha in the 8 most significant
// bits and blue in the 8 list significant bits. On a little endian machine the
// byte order in memory would be B, G, R, A.
switch( wl_shm_buffer_get_format(shmBuffer) )
{
case WL_SHM_FORMAT_ARGB8888:
pixelFormat= NEXUS_PixelFormat_eA8_R8_G8_B8;
break;
case WL_SHM_FORMAT_XRGB8888:
pixelFormat= NEXUS_PixelFormat_eX8_R8_G8_B8;
break;
case WL_SHM_FORMAT_BGRA8888:
pixelFormat= NEXUS_PixelFormat_eB8_G8_R8_A8;
break;
case WL_SHM_FORMAT_BGRX8888:
pixelFormat= NEXUS_PixelFormat_eB8_G8_R8_X8;
break;
case WL_SHM_FORMAT_RGB565:
pixelFormat= NEXUS_PixelFormat_eR5_G6_B5;
break;
case WL_SHM_FORMAT_ARGB4444:
pixelFormat= NEXUS_PixelFormat_eA4_R4_G4_B4;
break;
default:
pixelFormat= NEXUS_PixelFormat_eUnknown;
break;
}
if ( pixelFormat != NEXUS_PixelFormat_eUnknown )
{
wl_shm_buffer_begin_access(shmBuffer);
data= wl_shm_buffer_get_data(shmBuffer);
if (
(surface->surfaceWidth != width) ||
(surface->surfaceHeight != height) ||
(surface->surfacePixelFormat != pixelFormat)
)
{
wstRendererAllocSurfaces( renderer, surface, width, height, pixelFormat );
}
nexusSurface= surface->surface[surface->back];
if ( nexusSurface )
{
unsigned char *src, *dest;
NEXUS_Surface_GetMemory( nexusSurface, &mem );
src= (unsigned char *)data;
dest= (unsigned char *)mem.buffer;
if ( mem.pitch == stride )
{
memcpy( dest, src, height*stride );
dest += height*mem.pitch;
}
else
{
for( i= 0; i < height; ++i )
{
memcpy( dest, src, stride );
if ( stride < mem.pitch )
{
memset( dest+stride, 0, (mem.pitch-stride) );
}
dest += mem.pitch;
src += stride;
}
}
if ( height < surface->surfaceHeight )
{
memset( dest, 0, mem.pitch*(surface->surfaceHeight-height) );
}
NEXUS_Surface_Flush( nexusSurface );
if ( !surface->sizeOverride )
{
surface->width= surface->surfaceWidth;
surface->height= surface->surfaceHeight;
}
if ( !renderer->isDelegate )
{
NxClient_GetSurfaceClientComposition(surface->allocResults.surfaceClient[0].id, &composition);
composition.position.width= surface->width;
composition.position.height= surface->height;
NxClient_SetSurfaceClientComposition(surface->allocResults.surfaceClient[0].id, &composition);
}
unsigned n= 0;
do
{
NEXUS_SurfaceHandle surface_list[10];
int rc = NEXUS_SurfaceClient_RecycleSurface(surface->gfxSurfaceClient, surface_list, 10, &n);
if (rc) break;
}
while (n >= 10);
surface->surfacePending= nexusSurface;
}
wl_shm_buffer_end_access(shmBuffer);
++surface->back;
if ( surface->back >= NUM_SURFACES )
{
surface->back= 0;
}
}
}
}
QImage SurfaceBuffer::image()
{
/* This api may be available on non-shm buffer. But be sure about it's format. */
if (!m_buffer || !isShmBuffer())
return QImage();
if (m_image.isNull())
{
const uchar *data = static_cast<const uchar *>(wl_shm_buffer_get_data(m_shmBuffer));
int stride = wl_shm_buffer_get_stride(m_shmBuffer);
int width = wl_shm_buffer_get_width(m_shmBuffer);
int height = wl_shm_buffer_get_height(m_shmBuffer);
QImage::Format format = QWaylandShmFormatHelper::fromWaylandShmFormat(wl_shm_format(wl_shm_buffer_get_format(m_shmBuffer)));
m_image = QImage(data, width, height, stride, format);
}
return m_image;
}
