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call _swrast_span_default_color() to simplify _swrast_Bitmap(), improved comments

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This commit is contained in:
Brian Paul 2006-10-04 15:21:23 +00:00
parent da62bcecfb
commit 9b507639ab
1 changed files with 7 additions and 18 deletions
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25
src/mesa/swrast/s_bitmap.c
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@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
* Version: 6.3
* Version: 6.5.2
*
* Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
* Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@ -39,8 +39,10 @@
/*
/**
* Render a bitmap.
* Called via ctx->Driver.Bitmap()
* All parameter error checking will have been done before this is called.
*/
void
_swrast_Bitmap( GLcontext *ctx, GLint px, GLint py,
@ -82,20 +84,7 @@ _swrast_Bitmap( GLcontext *ctx, GLint px, GLint py,
INIT_SPAN(span, GL_BITMAP, width, 0, SPAN_XY);
if (ctx->Visual.rgbMode) {
span.interpMask |= SPAN_RGBA;
span.red = FloatToFixed(ctx->Current.RasterColor[0] * CHAN_MAXF);
span.green = FloatToFixed(ctx->Current.RasterColor[1] * CHAN_MAXF);
span.blue = FloatToFixed(ctx->Current.RasterColor[2] * CHAN_MAXF);
span.alpha = FloatToFixed(ctx->Current.RasterColor[3] * CHAN_MAXF);
span.redStep = span.greenStep = span.blueStep = span.alphaStep = 0;
}
else {
span.interpMask |= SPAN_INDEX;
span.index = FloatToFixed(ctx->Current.RasterIndex);
span.indexStep = 0;
}
_swrast_span_default_color(ctx, &span);
if (ctx->Depth.Test)
_swrast_span_default_z(ctx, &span);
if (swrast->_FogEnabled)
@ -177,7 +166,7 @@ _swrast_Bitmap( GLcontext *ctx, GLint px, GLint py,
#if 0
/*
* XXX this is another way to implement Bitmap. Use horizontal runs of
* fragments, initializing the mask array to indicate which fragmens to
* fragments, initializing the mask array to indicate which fragments to
* draw or skip.
*/
void