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minor scissor optimizations (Klaus Niederkrueger)

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This commit is contained in:
Brian Paul 2001-02-15 22:59:01 +00:00
parent c6b2a92613
commit 86ca15ece7
1 changed files with 24 additions and 20 deletions
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44
src/mesa/swrast/s_span.c
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@ -1,4 +1,4 @@
/* $Id: s_span.c,v 1.7 2001/02/14 22:40:21 brianp Exp $ */
/* $Id: s_span.c,v 1.8 2001/02/15 22:59:01 brianp Exp $ */
/*
* Mesa 3-D graphics library
@ -99,7 +99,7 @@ static GLuint clip_span( GLcontext *ctx,
}
else {
/* partially off left side */
MEMSET(mask, 0, -x);
BZERO(mask, -x * sizeof(GLubyte));
}
}
@ -193,7 +193,7 @@ void gl_write_index_span( GLcontext *ctx,
if ((swrast->_RasterMask & WINCLIP_BIT) || primitive==GL_BITMAP) {
if ((n = clip_span(ctx,n,x,y,mask)) == 0) {
return;
return;
}
}
@ -210,8 +210,8 @@ void gl_write_index_span( GLcontext *ctx,
/* Do the scissor test */
if (ctx->Scissor.Enabled) {
if (gl_scissor_span( ctx, n, x, y, mask ) == 0) {
return;
if ((n = _mesa_scissor_span( ctx, n, x, y, mask )) == 0) {
return;
}
}
@ -223,7 +223,7 @@ void gl_write_index_span( GLcontext *ctx,
if (ctx->Stencil.Enabled) {
/* first stencil test */
if (_mesa_stencil_and_ztest_span(ctx, n, x, y, z, mask) == GL_FALSE) {
return;
return;
}
}
else if (ctx->Depth.Test) {
@ -289,8 +289,8 @@ void gl_write_monoindex_span( GLcontext *ctx,
/* Do the scissor test */
if (ctx->Scissor.Enabled) {
if (gl_scissor_span( ctx, n, x, y, mask ) == 0) {
return;
if ((n = _mesa_scissor_span( ctx, n, x, y, mask )) == 0) {
return;
}
}
@ -479,10 +479,11 @@ void gl_write_rgba_span( GLcontext *ctx,
/* Do the scissor test */
if (ctx->Scissor.Enabled) {
if (gl_scissor_span( ctx, n, x, y, mask ) == 0) {
return;
if ((n = _mesa_scissor_span( ctx, n, x, y, mask )) == 0) {
return;
}
write_all = GL_FALSE;
if (mask[0] == 0)
write_all = GL_FALSE;
}
/* Polygon Stippling */
@ -603,10 +604,11 @@ void gl_write_monocolor_span( GLcontext *ctx,
/* Do the scissor test */
if (ctx->Scissor.Enabled) {
if (gl_scissor_span( ctx, n, x, y, mask ) == 0) {
return;
if ((n = _mesa_scissor_span( ctx, n, x, y, mask )) == 0) {
return;
}
write_all = GL_FALSE;
if (mask[0] == 0)
write_all = GL_FALSE;
}
/* Polygon Stippling */
@ -797,10 +799,11 @@ void gl_write_texture_span( GLcontext *ctx,
/* Do the scissor test */
if (ctx->Scissor.Enabled) {
if (gl_scissor_span( ctx, n, x, y, mask ) == 0) {
return;
if ((n = _mesa_scissor_span( ctx, n, x, y, mask )) == 0) {
return;
}
write_all = GL_FALSE;
if (mask[0] == 0)
write_all = GL_FALSE;
}
/* Polygon Stippling */
@ -942,10 +945,11 @@ gl_write_multitexture_span( GLcontext *ctx,
/* Do the scissor test */
if (ctx->Scissor.Enabled) {
if (gl_scissor_span( ctx, n, x, y, mask ) == 0) {
return;
if ((n = _mesa_scissor_span( ctx, n, x, y, mask )) == 0) {
return;
}
write_all = GL_FALSE;
if (mask[0] == 0)
write_all = GL_FALSE;
}
/* Polygon Stippling */