static DFBResult
IDirectFBImageProvider_GIF_RenderTo( IDirectFBImageProvider *thiz,
IDirectFBSurface *destination,
const DFBRectangle *dest_rect )
{
DFBResult ret;
DFBRegion clip;
DFBRectangle rect;
DFBSurfacePixelFormat format;
IDirectFBSurface_data *dst_data;
CoreSurface *dst_surface;
DIRECT_INTERFACE_GET_DATA (IDirectFBImageProvider_GIF)
dst_data = (IDirectFBSurface_data*) destination->priv;
if (!dst_data)
return DFB_DEAD;
dst_surface = dst_data->surface;
if (!dst_surface)
return DFB_DESTROYED;
dfb_region_from_rectangle( &clip, &dst_data->area.current );
if (dest_rect) {
if (dest_rect->w < 1 || dest_rect->h < 1)
return DFB_INVARG;
rect = *dest_rect;
rect.x += dst_data->area.wanted.x;
rect.y += dst_data->area.wanted.y;
}
else {
rect = dst_data->area.wanted;
}
ret = destination->GetPixelFormat( destination, &format );
if (ret)
return ret;
/* actual loading and rendering */
if (dfb_rectangle_region_intersects( &rect, &clip )) {
CoreSurfaceBufferLock lock;
ret = dfb_surface_lock_buffer( dst_surface, CSBR_BACK, CSAID_CPU, CSAF_WRITE, &lock );
if (ret)
return ret;
dfb_scale_linear_32( data->image, data->image_width, data->image_height,
lock.addr, lock.pitch, &rect, dst_surface, &clip );
dfb_surface_unlock_buffer( dst_surface, &lock );
if (data->base.render_callback) {
DIRenderCallbackResult r;
rect.x = 0;
rect.y = 0;
rect.w = data->image_width;
rect.h = data->image_height;
r = data->base.render_callback( &rect,
data->base.render_callback_context );
if (r != DIRCR_OK)
return DFB_INTERRUPTED;
}
}
return DFB_OK;
}
static DFBResult
IDirectFBImageProvider_JPEG2000_RenderTo( IDirectFBImageProvider *thiz,
IDirectFBSurface *destination,
const DFBRectangle *dest_rect )
{
IDirectFBSurface_data *dst_data;
CoreSurface *dst_surface;
CoreSurfaceBufferLock lock;
DFBRectangle rect;
DFBRegion clip;
DIRenderCallbackResult cb_result = DIRCR_OK;
DFBResult ret = DFB_OK;
DIRECT_INTERFACE_GET_DATA( IDirectFBImageProvider_JPEG2000 )
if (!destination)
return DFB_INVARG;
dst_data = destination->priv;
if (!dst_data || !dst_data->surface)
return DFB_DESTROYED;
dst_surface = dst_data->surface;
if (dest_rect) {
if (dest_rect->w < 1 || dest_rect->h < 1)
return DFB_INVARG;
rect = *dest_rect;
rect.x += dst_data->area.wanted.x;
rect.y += dst_data->area.wanted.y;
}
else {
rect = dst_data->area.wanted;
}
dfb_region_from_rectangle( &clip, &dst_data->area.current );
if (!dfb_rectangle_region_intersects( &rect, &clip ))
return DFB_OK;
ret = dfb_surface_lock_buffer( dst_surface, CSBR_BACK, CSAID_CPU, CSAF_WRITE, &lock );
if (ret)
return ret;
if (!data->buf) {
int cmptlut[3];
int width, height;
int tlx, tly;
int hs, vs;
int i, j;
bool direct, mono;
if (jas_image_numcmpts(data->image) > 1) {
cmptlut[0] = jas_image_getcmptbytype(data->image,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_R));
cmptlut[1] = jas_image_getcmptbytype(data->image,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_G));
cmptlut[2] = jas_image_getcmptbytype(data->image,
JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_B));
if (cmptlut[0] < 0 || cmptlut[1] < 0 || cmptlut[2] < 0) {
dfb_surface_unlock_buffer( dst_surface, &lock );
return DFB_UNSUPPORTED;
}
mono = false;
}
else {
cmptlut[0] = cmptlut[1] = cmptlut[2] = 0;
mono = true;
}
width = jas_image_width(data->image);
height = jas_image_height(data->image);
tlx = jas_image_cmpttlx(data->image, 0);
tly = jas_image_cmpttly(data->image, 0);
hs = jas_image_cmpthstep(data->image, 0);
vs = jas_image_cmptvstep(data->image, 0);
data->buf = D_MALLOC( width*height*4 );
if (!data->buf) {
dfb_surface_unlock_buffer( dst_surface, &lock );
return D_OOM();
}
direct = (rect.w == width && rect.h == height && data->render_callback);
#define GET_SAMPLE( n, x, y ) ({ \
int _s; \
_s = jas_image_readcmptsample(data->image, cmptlut[n], x, y); \
_s >>= jas_image_cmptprec(data->image, cmptlut[n]) - 8; \
if (_s > 255) \
_s = 255; \
else if (_s < 0) \
_s = 0; \
_s; \
})
for (i = 0; i < height; i++) {
u32 *dst = data->buf + i * width;
int x, y;
y = (i - tly) / vs;
if (y >= 0 && y < height) {
for (j = 0; j < width; j++) {
x = (j - tlx) / hs;
if (x >= 0 && x < width) {
unsigned int r, g, b;
if (mono) {
r = g = b = GET_SAMPLE(0, x, y);
}
else {
r = GET_SAMPLE(0, x, y);
g = GET_SAMPLE(1, x, y);
b = GET_SAMPLE(2, x, y);
}
*dst++ = 0xff000000 | (r << 16) | (g << 8) | b;
}
else {
*dst++ = 0;
}
}
}
else {
memset( dst, 0, width*4 );
}
if (direct) {
DFBRectangle r = { rect.x, rect.y+i, width, 1 };
dfb_copy_buffer_32( data->buf + i*width,
lock.addr, lock.pitch, &r, dst_surface, &clip );
if (data->render_callback) {
r = (DFBRectangle) { 0, i, width, 1 };
cb_result = data->render_callback( &r, data->render_callback_ctx );
if (cb_result != DIRCR_OK)
break;
}
}
}
if (!direct) {
dfb_scale_linear_32( data->buf, width, height,
lock.addr, lock.pitch, &rect, dst_surface, &clip );
if (data->render_callback) {
DFBRectangle r = { 0, 0, width, height };
data->render_callback( &r, data->render_callback_ctx );
}
}
if (cb_result != DIRCR_OK) {
D_FREE( data->buf );
data->buf = NULL;
ret = DFB_INTERRUPTED;
}
}
else {
int width = jas_image_width(data->image);
int height = jas_image_height(data->image);
dfb_scale_linear_32( data->buf, width, height,
lock.addr, lock.pitch, &rect, dst_surface, &clip );
if (data->render_callback) {
DFBRectangle r = {0, 0, width, height};
data->render_callback( &r, data->render_callback_ctx );
}
}
dfb_surface_unlock_buffer( dst_surface, &lock );
return ret;
}
static DFBResult
IDirectFBImageProvider_ANDROID_RenderTo( IDirectFBImageProvider *thiz,
IDirectFBSurface *destination,
const DFBRectangle *dest_rect )
{
DFBResult ret;
bool direct = false;
DFBRegion clip;
DFBRectangle rect;
DFBSurfacePixelFormat format;
IDirectFBSurface_data *dst_data;
CoreSurface *dst_surface;
CoreSurfaceBufferLock lock;
DIRenderCallbackResult cb_result = DIRCR_OK;
DIRECT_INTERFACE_GET_DATA(IDirectFBImageProvider_ANDROID)
dst_data = (IDirectFBSurface_data*) destination->priv;
if (!dst_data)
return DFB_DEAD;
dst_surface = dst_data->surface;
if (!dst_surface)
return DFB_DESTROYED;
ret = decodeImage( data );
if (ret)
return ret;
ret = destination->GetPixelFormat( destination, &format );
if (ret)
return ret;
dfb_region_from_rectangle( &clip, &dst_data->area.current );
if (dest_rect) {
if (dest_rect->w < 1 || dest_rect->h < 1)
return DFB_INVARG;
rect = *dest_rect;
rect.x += dst_data->area.wanted.x;
rect.y += dst_data->area.wanted.y;
if (!dfb_rectangle_region_intersects( &rect, &clip ))
return DFB_OK;
}
else {
rect = dst_data->area.wanted;
}
ret = dfb_surface_lock_buffer( dst_surface, CSBR_BACK, CSAID_CPU, CSAF_WRITE, &lock );
if (ret)
return ret;
dfb_scale_linear_32( (u32 *)data->image, data->width, data->height, lock.addr, lock.pitch, &rect, dst_surface, &clip );
if (data->base.render_callback) {
DFBRectangle r = { 0, 0, data->width, data->height };
data->base.render_callback( &r, data->base.render_callback_context );
}
dfb_surface_unlock_buffer( dst_surface, &lock );
return DFB_OK;
}
static DFBResult
IDirectFBImageProvider_MPEG2_RenderTo( IDirectFBImageProvider *thiz,
IDirectFBSurface *destination,
const DFBRectangle *dest_rect )
{
DFBResult ret;
IDirectFBSurface_data *dst_data;
CoreSurface *dst_surface;
DFBRegion clip;
DFBRectangle rect;
DIRECT_INTERFACE_GET_DATA (IDirectFBImageProvider_MPEG2)
dst_data = (IDirectFBSurface_data*) destination->priv;
if (!dst_data)
return DFB_DEAD;
dst_surface = dst_data->surface;
if (!dst_surface)
return DFB_DESTROYED;
dfb_region_from_rectangle( &clip, &dst_data->area.current );
if (dest_rect) {
if (dest_rect->w < 1 || dest_rect->h < 1)
return DFB_INVARG;
rect = *dest_rect;
rect.w += dst_data->area.wanted.w;
rect.h += dst_data->area.wanted.h;
}
else {
rect = dst_data->area.wanted;
}
switch (data->stage) {
case STAGE_END:
break;
case STAGE_IMAGE:
if (MPEG2_Decode( data->dec, mpeg2_write_func, data )) {
data->stage = STAGE_ERROR;
return DFB_FAILURE;
}
data->stage = STAGE_END;
break;
default:
return DFB_FAILURE;
}
/* actual rendering */
if (dfb_rectangle_region_intersects( &rect, &clip )) {
CoreSurfaceBufferLock lock;
ret = dfb_surface_lock_buffer( dst_surface, CSBR_BACK, CSAID_CPU, CSAF_WRITE, &lock );
if (ret)
return ret;
dfb_scale_linear_32( data->image, data->width, data->height,
lock.addr, lock.pitch, &rect, dst_surface, &clip );
dfb_surface_unlock_buffer( dst_surface, &lock );
}
return DFB_OK;
}
static DFBResult
IDirectFBImageProvider_WebP_RenderTo( IDirectFBImageProvider *thiz,
IDirectFBSurface *destination,
const DFBRectangle *dest_rect )
{
DFBResult ret;
DFBRegion clip;
CoreSurface *dst_surface;
CardState state;
CoreSurfaceBufferLock lock;
IDirectFBSurface_data *dst_data;
DIRenderCallbackResult cb_result = DIRCR_OK;
DFBRectangle src_rect;
DFBRectangle rect;
DIRECT_INTERFACE_GET_DATA( IDirectFBImageProvider_WebP )
if (!destination)
return DFB_INVARG;
dst_data = destination->priv;
if (!dst_data || !dst_data->surface)
return DFB_DESTROYED;
dst_surface = dst_data->surface;
if (dest_rect) {
if (dest_rect->w < 1 || dest_rect->h < 1)
return DFB_INVARG;
rect = *dest_rect;
rect.x += dst_data->area.wanted.x;
rect.y += dst_data->area.wanted.y;
}
else {
rect = dst_data->area.wanted;
}
dfb_region_from_rectangle( &clip, &dst_data->area.current );
if (!dfb_rectangle_region_intersects( &rect, &clip ))
return DFB_OK;
ret = dfb_surface_create_simple( data->base.core, data->width, data->height, data->pixelformat,
DSCS_RGB, DSCAPS_NONE, CSTF_NONE,
0, NULL, &data->decode_surface );
if (ret) {
D_ERROR( "Failed to create surface : '%s'\n", DirectResultString(ret) );
goto error;
}
ret = dfb_surface_lock_buffer( data->decode_surface, CSBR_BACK, CSAID_CPU, CSAF_WRITE, &lock );
if (ret) {
D_ERROR( "Failed to lock the surface : '%s'\n", DirectResultString(ret) );
goto error;
}
ret = WebP_decode_image( data, &lock );
if (ret) {
D_ERROR( "Failed to decode the image : '%s'\n", DirectResultString(ret) );
goto error;
}
dfb_surface_unlock_buffer( data->decode_surface, &lock );
dfb_state_init( &state, data->base.core );
state.modified |= SMF_CLIP;
state.clip = DFB_REGION_INIT_FROM_RECTANGLE_VALS( rect.x, rect.y, rect.w, rect.h );
src_rect = (DFBRectangle){0, 0, data->width, data->height};
dfb_state_set_source( &state, data->decode_surface );
dfb_state_set_destination( &state, dst_surface );
dfb_gfxcard_batchstretchblit( &src_rect, &rect, 1, &state );
data->serial = &state.serial;
dfb_state_set_source(&state, NULL);
dfb_state_set_destination(&state, NULL);
dfb_state_destroy(&state);
if (data->base.render_callback) {
DFBRectangle r = { 0, 0, data->width, data->height };
cb_result=data->base.render_callback( &r, data->base.render_callback_context );
}
if (cb_result == DIRCR_OK) {
data->base.buffer->Release( data->base.buffer );
data->base.buffer = NULL;
}
return DFB_OK;
error:
if (data->decode_surface && lock.pitch)
dfb_surface_unlock_buffer( data->decode_surface, &lock );
dfb_surface_unref( data->decode_surface );
data->base.buffer->Release( data->base.buffer );
data->base.buffer = NULL;
return ret;
}