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Workaround for AWRenderer clipping issue (bug #1756230) and improved rendering performance

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svn path=/trunk/netsurf/; revision=3456
This commit is contained in:
Adrian Lees 2007-07-22 04:15:27 +00:00
parent 3d11398006
commit 86d0dd8563
1 changed files with 31 additions and 9 deletions
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40
riscos/artworks.c
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@ -60,7 +60,7 @@ struct awinfo_block {
/* Assembler routines for interfacing with the ArtworksRenderer module */
os_error *awrender_init(char **doc,
size_t *doc_size,
unsigned long *doc_size,
void *routine,
void *workspace);
@ -114,7 +114,7 @@ bool artworks_convert(struct content *c, int width, int height)
}
/* lookup the addresses of the init and render routines */
error = _swix(AWRender_FileInitAddress, _OUT(0) | _OUT(1),
error = (os_error*)_swix(AWRender_FileInitAddress, _OUT(0) | _OUT(1),
&init_routine, &init_workspace);
if (error) {
LOG(("AWRender_FileInitAddress: 0x%x: %s",
@ -124,7 +124,7 @@ bool artworks_convert(struct content *c, int width, int height)
return false;
}
error = _swix(AWRender_RenderAddress, _OUT(0) | _OUT(1),
error = (os_error*)_swix(AWRender_RenderAddress, _OUT(0) | _OUT(1),
&c->data.artworks.render_routine,
&c->data.artworks.render_workspace);
if (error) {
@ -146,12 +146,13 @@ bool artworks_convert(struct content *c, int width, int height)
return false;
}
error = _swix(AWRender_DocBounds, _IN(0) | _OUT(2) | _OUT(3) | _OUT(4) | _OUT(5),
error = (os_error*)_swix(AWRender_DocBounds, _IN(0) | _OUT(2) | _OUT(3) | _OUT(4) | _OUT(5),
c->source_data,
&c->data.artworks.x0,
&c->data.artworks.y0,
&c->data.artworks.x1,
&c->data.artworks.y1);
if (error) {
LOG(("AWRender_DocBounds: 0x%x: %s",
error->errnum, error->errmess));
@ -176,7 +177,7 @@ bool artworks_convert(struct content *c, int width, int height)
return false;
}
c->width = (c->data.artworks.x1 - c->data.artworks.x0) / 512;
c->width = (c->data.artworks.x1 - c->data.artworks.x0) / 512;
c->height = (c->data.artworks.y1 - c->data.artworks.y0) / 512;
c->title = malloc(100);
@ -222,6 +223,12 @@ bool artworks_redraw(struct content *c, int x, int y,
if (plot.flush && !plot.flush())
return false;
/* pick up render addresses again in case they've changed
(eg. newer AWRender module loaded since we first loaded this file) */
(void)_swix(AWRender_RenderAddress, _OUT(0) | _OUT(1),
&c->data.artworks.render_routine,
&c->data.artworks.render_workspace);
/* Scaled image. Transform units (65536*OS units) */
matrix.entries[0][0] = width * 65536 / c->width;
matrix.entries[0][1] = 0;
@ -235,10 +242,25 @@ bool artworks_redraw(struct content *c, int x, int y,
info.ditherx = ro_plot_origin_x;
info.dithery = ro_plot_origin_y;
info.clip_x0 = INT_MIN;
info.clip_y0 = INT_MIN;
info.clip_x1 = INT_MAX;
info.clip_y1 = INT_MAX;
clip_x0 -= x;
clip_y0 -= y;
clip_x1 -= x;
clip_y1 -= y;
if (scale == 1.0) {
info.clip_x0 = (clip_x0 * 512) + c->data.artworks.x0 - 511;
info.clip_y0 = ((c->height - clip_y1) * 512) + c->data.artworks.y0 - 511;
info.clip_x1 = (clip_x1 * 512) + c->data.artworks.x0 + 511;
info.clip_y1 = ((c->height - clip_y0) * 512) + c->data.artworks.y0 + 511;
}
else {
info.clip_x0 = (clip_x0 * 512 / scale) + c->data.artworks.x0 - 511;
info.clip_y0 = ((c->height - (clip_y1 / scale)) * 512) + c->data.artworks.y0 - 511;
info.clip_x1 = (clip_x1 * 512 / scale) + c->data.artworks.x0 + 511;
info.clip_y1 = ((c->height - (clip_y0 / scale)) * 512) + c->data.artworks.y0 + 511;
}
info.print_lowx = 0;
info.print_lowy = 0;
info.print_handle = 0;