diff options
Diffstat (limited to 'src/mesa/swrast/s_zoom.c')
| -rw-r--r-- | src/mesa/swrast/s_zoom.c | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/src/mesa/swrast/s_zoom.c b/src/mesa/swrast/s_zoom.c index 48b4d1e240..a48eae1925 100644 --- a/src/mesa/swrast/s_zoom.c +++ b/src/mesa/swrast/s_zoom.c @@ -1,8 +1,8 @@ /* * Mesa 3-D graphics library - * Version: 6.5.2 + * Version: 7.1 * - * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. + * Copyright (C) 1999-2008 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"), @@ -130,8 +130,8 @@ static void zoom_span( GLcontext *ctx, GLint imgX, GLint imgY, const SWspan *span, const GLvoid *src, GLenum format ) { + SWcontext *swrast = SWRAST_CONTEXT(ctx); SWspan zoomed; - SWspanarrays zoomed_arrays; /* this is big! */ GLint x0, x1, y0, y1; GLint zoomedWidth; @@ -140,6 +140,13 @@ zoom_span( GLcontext *ctx, GLint imgX, GLint imgY, const SWspan *span, return; /* totally clipped */ } + if (!swrast->ZoomedArrays) { + /* allocate on demand */ + swrast->ZoomedArrays = (SWspanarrays *) CALLOC(sizeof(SWspanarrays)); + if (!swrast->ZoomedArrays) + return; + } + zoomedWidth = x1 - x0; ASSERT(zoomedWidth > 0); ASSERT(zoomedWidth <= MAX_WIDTH); @@ -151,14 +158,14 @@ zoom_span( GLcontext *ctx, GLint imgX, GLint imgY, const SWspan *span, INIT_SPAN(zoomed, GL_BITMAP); zoomed.x = x0; zoomed.end = zoomedWidth; - zoomed.array = &zoomed_arrays; - zoomed_arrays.ChanType = span->array->ChanType; - if (zoomed_arrays.ChanType == GL_UNSIGNED_BYTE) - zoomed_arrays.rgba = (GLchan (*)[4]) zoomed_arrays.rgba8; - else if (zoomed_arrays.ChanType == GL_UNSIGNED_SHORT) - zoomed_arrays.rgba = (GLchan (*)[4]) zoomed_arrays.rgba16; + zoomed.array = swrast->ZoomedArrays; + zoomed.array->ChanType = span->array->ChanType; + if (zoomed.array->ChanType == GL_UNSIGNED_BYTE) + zoomed.array->rgba = (GLchan (*)[4]) zoomed.array->rgba8; + else if (zoomed.array->ChanType == GL_UNSIGNED_SHORT) + zoomed.array->rgba = (GLchan (*)[4]) zoomed.array->rgba16; else - zoomed_arrays.rgba = (GLchan (*)[4]) zoomed_arrays.attribs[FRAG_ATTRIB_COL0]; + zoomed.array->rgba = (GLchan (*)[4]) zoomed.array->attribs[FRAG_ATTRIB_COL0]; COPY_4V(zoomed.attrStart[FRAG_ATTRIB_WPOS], span->attrStart[FRAG_ATTRIB_WPOS]); COPY_4V(zoomed.attrStepX[FRAG_ATTRIB_WPOS], span->attrStepX[FRAG_ATTRIB_WPOS]); |