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dwrite/layout: Split run shaping between two helpers. 

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Nikolay Sivov 2021-02-16 12:48:39 +03:00 committed by Alexandre Julliard
parent d489f1ddff
commit 2655576be9
1 changed files with 66 additions and 37 deletions
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103
dlls/dwrite/layout.c
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@ -934,47 +934,57 @@ fatal:
return hr;
}
static HRESULT layout_shape_run(struct dwrite_textlayout *layout, struct regular_layout_run *run)
struct shaping_context
{
IDWriteTextAnalyzer *analyzer;
struct regular_layout_run *run;
DWRITE_SHAPING_GLYPH_PROPERTIES *glyph_props;
DWRITE_SHAPING_TEXT_PROPERTIES *text_props;
IDWriteTextAnalyzer *analyzer;
struct layout_range *range;
UINT32 max_count;
};
static void layout_shape_clear_context(struct shaping_context *context)
{
heap_free(context->glyph_props);
heap_free(context->text_props);
}
static HRESULT layout_shape_get_glyphs(struct dwrite_textlayout *layout, struct shaping_context *context)
{
struct regular_layout_run *run = context->run;
unsigned int max_count;
HRESULT hr;
range = get_layout_range_by_pos(layout, run->descr.textPosition);
run->descr.localeName = range->locale;
run->descr.localeName = get_layout_range_by_pos(layout, run->descr.textPosition)->locale;
run->clustermap = heap_calloc(run->descr.stringLength, sizeof(*run->clustermap));
if (!run->clustermap)
return E_OUTOFMEMORY;
max_count = 3 * run->descr.stringLength / 2 + 16;
run->glyphs = heap_calloc(max_count, sizeof(*run->glyphs));
if (!run->clustermap || !run->glyphs)
if (!run->glyphs)
return E_OUTOFMEMORY;
text_props = heap_calloc(run->descr.stringLength, sizeof(*text_props));
glyph_props = heap_calloc(max_count, sizeof(*glyph_props));
if (!text_props || !glyph_props) {
heap_free(text_props);
heap_free(glyph_props);
context->text_props = heap_calloc(run->descr.stringLength, sizeof(*context->text_props));
context->glyph_props = heap_calloc(max_count, sizeof(*context->glyph_props));
if (!context->text_props || !context->glyph_props)
return E_OUTOFMEMORY;
}
analyzer = get_text_analyzer();
for (;;) {
hr = IDWriteTextAnalyzer_GetGlyphs(analyzer, run->descr.string, run->descr.stringLength, run->run.fontFace,
for (;;)
{
hr = IDWriteTextAnalyzer_GetGlyphs(context->analyzer, run->descr.string, run->descr.stringLength, run->run.fontFace,
run->run.isSideways, run->run.bidiLevel & 1, &run->sa, run->descr.localeName, NULL /* FIXME */, NULL,
NULL, 0, max_count, run->clustermap, text_props, run->glyphs, glyph_props, &run->glyphcount);
if (hr == E_NOT_SUFFICIENT_BUFFER) {
NULL, 0, max_count, run->clustermap, context->text_props, run->glyphs, context->glyph_props, &run->glyphcount);
if (hr == E_NOT_SUFFICIENT_BUFFER)
{
heap_free(run->glyphs);
heap_free(glyph_props);
heap_free(context->glyph_props);
max_count = run->glyphcount;
run->glyphs = heap_calloc(max_count, sizeof(*run->glyphs));
glyph_props = heap_calloc(max_count, sizeof(*glyph_props));
if (!run->glyphs || !glyph_props) {
context->glyph_props = heap_calloc(max_count, sizeof(*context->glyph_props));
if (!run->glyphs || !context->glyph_props)
{
hr = E_OUTOFMEMORY;
break;
}
@ -985,16 +995,20 @@ static HRESULT layout_shape_run(struct dwrite_textlayout *layout, struct regular
break;
}
if (FAILED(hr)) {
heap_free(text_props);
heap_free(glyph_props);
if (FAILED(hr))
WARN("%s: shaping failed, hr %#x.\n", debugstr_rundescr(&run->descr), hr);
return hr;
}
run->run.glyphIndices = run->glyphs;
run->descr.clusterMap = run->clustermap;
return hr;
}
static HRESULT layout_shape_get_positions(struct dwrite_textlayout *layout, struct shaping_context *context)
{
struct regular_layout_run *run = context->run;
HRESULT hr;
run->advances = heap_calloc(run->glyphcount, sizeof(*run->advances));
run->offsets = heap_calloc(run->glyphcount, sizeof(*run->offsets));
if (!run->advances || !run->offsets)
@ -1002,20 +1016,19 @@ static HRESULT layout_shape_run(struct dwrite_textlayout *layout, struct regular
/* Get advances and offsets. */
if (is_layout_gdi_compatible(layout))
hr = IDWriteTextAnalyzer_GetGdiCompatibleGlyphPlacements(analyzer, run->descr.string, run->descr.clusterMap,
text_props, run->descr.stringLength, run->run.glyphIndices, glyph_props, run->glyphcount,
hr = IDWriteTextAnalyzer_GetGdiCompatibleGlyphPlacements(context->analyzer, run->descr.string, run->descr.clusterMap,
context->text_props, run->descr.stringLength, run->run.glyphIndices, context->glyph_props, run->glyphcount,
run->run.fontFace, run->run.fontEmSize, layout->ppdip, &layout->transform,
layout->measuringmode == DWRITE_MEASURING_MODE_GDI_NATURAL, run->run.isSideways, run->run.bidiLevel & 1,
&run->sa, run->descr.localeName, NULL, NULL, 0, run->advances, run->offsets);
else
hr = IDWriteTextAnalyzer_GetGlyphPlacements(analyzer, run->descr.string, run->descr.clusterMap, text_props,
run->descr.stringLength, run->run.glyphIndices, glyph_props, run->glyphcount, run->run.fontFace,
run->run.fontEmSize, run->run.isSideways, run->run.bidiLevel & 1, &run->sa, run->descr.localeName,
NULL, NULL, 0, run->advances, run->offsets);
hr = IDWriteTextAnalyzer_GetGlyphPlacements(context->analyzer, run->descr.string, run->descr.clusterMap,
context->text_props, run->descr.stringLength, run->run.glyphIndices, context->glyph_props, run->glyphcount,
run->run.fontFace, run->run.fontEmSize, run->run.isSideways, run->run.bidiLevel & 1, &run->sa,
run->descr.localeName, NULL, NULL, 0, run->advances, run->offsets);
heap_free(text_props);
heap_free(glyph_props);
if (FAILED(hr)) {
if (FAILED(hr))
{
memset(run->advances, 0, run->glyphcount * sizeof(*run->advances));
memset(run->offsets, 0, run->glyphcount * sizeof(*run->offsets));
WARN("%s: failed to get glyph placement info, hr %#x.\n", debugstr_rundescr(&run->descr), hr);
@ -1024,6 +1037,22 @@ static HRESULT layout_shape_run(struct dwrite_textlayout *layout, struct regular
run->run.glyphAdvances = run->advances;
run->run.glyphOffsets = run->offsets;
return hr;
}
static HRESULT layout_shape_run(struct dwrite_textlayout *layout, struct regular_layout_run *run)
{
struct shaping_context context = { 0 };
HRESULT hr;
context.analyzer = get_text_analyzer();
context.run = run;
if (SUCCEEDED(hr = layout_shape_get_glyphs(layout, &context)))
hr = layout_shape_get_positions(layout, &context);
layout_shape_clear_context(&context);
/* Special treatment for runs that don't produce visual output, shaping code adds normal glyphs for them,
with valid cluster map and potentially with non-zero advances; layout code exposes those as zero
width clusters. */
@ -1032,7 +1061,7 @@ static HRESULT layout_shape_run(struct dwrite_textlayout *layout, struct regular
else
run->run.glyphCount = run->glyphcount;
return S_OK;
return hr;
}
static HRESULT layout_compute_runs(struct dwrite_textlayout *layout)