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added tracking the usage of the special B_OP_COPY version for text

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17326 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stephan Aßmus 2006-05-05 08:54:15 +00:00
parent 85fc6ab403
commit 7e07723e68
2 changed files with 10 additions and 0 deletions
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6
src/servers/app/drawing/Painter/drawing_modes/PixelFormat.cpp
View File

@ -108,6 +108,7 @@ PixelFormat::PixelFormat(agg::rendering_buffer& rb,
const PatternHandler* handler)
: fBuffer(&rb),
fPatternHandler(handler),
fUsesOpCopyForText(false),
fBlendPixel(blend_pixel_empty),
fBlendHLine(blend_hline_empty),
@ -129,6 +130,7 @@ void
PixelFormat::SetDrawingMode(drawing_mode mode, source_alpha alphaSrcMode,
alpha_function alphaFncMode, bool text)
{
fUsesOpCopyForText = false;
switch (mode) {
// these drawing modes discard source pixels
// which have the current low color
@ -178,6 +180,10 @@ PixelFormat::SetDrawingMode(drawing_mode mode, source_alpha alphaSrcMode,
fBlendSolidHSpan = blend_solid_hspan_copy_text;
fBlendSolidVSpan = blend_solid_vspan_copy_text;
fBlendColorHSpan = blend_color_hspan_copy_text;
// set the special flag so that Painter
// knows if an update is needed even though
// "nothing changed"
fUsesOpCopyForText = true;
} else if (fPatternHandler->IsSolid()) {
fBlendPixel = blend_pixel_copy_solid;
fBlendHLine = blend_hline_copy_solid;

4
src/servers/app/drawing/Painter/drawing_modes/PixelFormat.h
View File

@ -61,6 +61,9 @@ class PixelFormat {
alpha_function alphaFncMode,
bool text);
inline bool UsesOpCopyForText() const
{ return fUsesOpCopyForText; }
// AGG "pixel format" interface
unsigned width() const { return fBuffer->width(); }
unsigned height() const { return fBuffer->height(); }
@ -105,6 +108,7 @@ class PixelFormat {
private:
agg::rendering_buffer* fBuffer;
const PatternHandler* fPatternHandler;
bool fUsesOpCopyForText;
blend_pixel_f fBlendPixel;
blend_line fBlendHLine;