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Port Amiga front end to thumbnail_redraw().

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Set maximum plot size for thumbnail.
Don't redraw any more of the content than we need to.
Set plot scale to thumbnail scale.
Note: untested.

svn path=/trunk/netsurf/; revision=11728
This commit is contained in:
Michael Drake 2011-02-20 17:11:07 +00:00
parent dbab823ddc
commit 9e8476f27f
1 changed files with 19 additions and 13 deletions
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32
amiga/thumbnail.c
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@ -37,12 +37,12 @@ bool thumbnail_create(hlcache_handle *content, struct bitmap *bitmap,
const char *url)
{
struct BitScaleArgs bsa;
struct rect clip;
int plot_width;
int plot_height;
clip.x0 = 0;
clip.y0 = 0;
clip.x1 = content_get_width(content);
clip.y1 = content_get_width(content);
plot_width = min(content_get_width(content), 1024);
plot_height = ((plot_width * bitmap->height) + (bitmap->width / 2)) /
bitmap->width;
bitmap->nativebm = p96AllocBitMap(bitmap->width, bitmap->height, 32,
BMF_CLEAR | BMF_DISPLAYABLE | BMF_INTERLEAVED,
@ -53,18 +53,24 @@ bool thumbnail_create(hlcache_handle *content, struct bitmap *bitmap,
ami_clearclipreg(&browserglob);
current_redraw_browser = curbw;
plot = amiplot;
content_redraw(content, 0, 0, content_get_width(content),
content_get_width(content), &clip, 1.0, 0xFFFFFF);
glob->scale = thumbnail_get_redraw_scale(content, plot_width);
thumbnail_redraw(content, plot_width, plot_height);
current_redraw_browser = NULL;
if(GfxBase->LibNode.lib_Version >= 53) // AutoDoc says v52, but this function isn't in OS4.0, so checking for v53 (OS4.1)
{
float resample_scale = bitmap->width / (float)plot_width;
uint32 flags = COMPFLAG_IgnoreDestAlpha | COMPFLAG_SrcAlphaOverride;
if(option_scale_quality) flags |= COMPFLAG_SrcFilter;
CompositeTags(COMPOSITE_Src,browserglob.bm,bitmap->nativebm,
COMPTAG_ScaleX,COMP_FLOAT_TO_FIX(bitmap->width/content_get_width(content)),
COMPTAG_ScaleY,COMP_FLOAT_TO_FIX(bitmap->height/content_get_width(content)),
COMPTAG_ScaleX,
COMP_FLOAT_TO_FIX(resample_scale),
COMPTAG_ScaleY,
COMP_FLOAT_TO_FIX(resample_scale),
COMPTAG_Flags,flags,
COMPTAG_DestX,0,
COMPTAG_DestY,0,
@ -78,15 +84,15 @@ bool thumbnail_create(hlcache_handle *content, struct bitmap *bitmap,
{
bsa.bsa_SrcX = 0;
bsa.bsa_SrcY = 0;
bsa.bsa_SrcWidth = content_get_width(content);
bsa.bsa_SrcHeight = content_get_width(content);
bsa.bsa_SrcWidth = plot_width;
bsa.bsa_SrcHeight = plot_height;
bsa.bsa_DestX = 0;
bsa.bsa_DestY = 0;
// bsa.bsa_DestWidth = width;
// bsa.bsa_DestHeight = height;
bsa.bsa_XSrcFactor = content_get_width(content);
bsa.bsa_XSrcFactor = plot_width;
bsa.bsa_XDestFactor = bitmap->width;
bsa.bsa_YSrcFactor = content_get_width(content);
bsa.bsa_YSrcFactor = plot_height;
bsa.bsa_YDestFactor = bitmap->height;
bsa.bsa_SrcBitMap = browserglob.bm;
bsa.bsa_DestBitMap = bitmap->nativebm;