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comments and clean-up

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This commit is contained in:
Brian Paul
2005-04-18 17:48:25 +00:00
parent 02986cb2cc
commit f905145b60
1 changed files with 27 additions and 25 deletions
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src/mesa/drivers/x11/xm_dd.c
+27 -25
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@@ -142,9 +142,12 @@ finish_or_flush( GLcontext *ctx )
/*
/**
* This chooses the color buffer for reading and writing spans, points,
* lines, and triangles.
* Remember that a GLframebuffer has several distinct color buffers:
* front/left, front/right, back/left, back/right and aux buffers.
* The bufferBit specifies which one to use.
*/
void
xmesa_set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit )
@@ -1101,7 +1104,7 @@ void xmesa_update_state( GLcontext *ctx, GLuint new_state )
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
/* Propogate statechange information to swrast and swrast_setup
/* Propagate statechange information to swrast and swrast_setup
* modules. The X11 driver has no internal GL-dependent state.
*/
_swrast_InvalidateState( ctx, new_state );
@@ -1115,30 +1118,29 @@ void xmesa_update_state( GLcontext *ctx, GLuint new_state )
if (xmesa->xm_draw_buffer->backpixmap != XIMAGE) {
xmesa->xm_draw_buffer->back_clear_func = clear_back_pixmap;
}
else if (sizeof(GLushort)!=2 || sizeof(GLuint)!=4) {
xmesa->xm_draw_buffer->back_clear_func = clear_nbit_ximage;
}
else switch (xmesa->xm_visual->BitsPerPixel) {
case 8:
if (xmesa->xm_visual->hpcr_clear_flag) {
xmesa->xm_draw_buffer->back_clear_func = clear_HPCR_ximage;
else {
switch (xmesa->xm_visual->BitsPerPixel) {
case 8:
if (xmesa->xm_visual->hpcr_clear_flag) {
xmesa->xm_draw_buffer->back_clear_func = clear_HPCR_ximage;
}
else {
xmesa->xm_draw_buffer->back_clear_func = clear_8bit_ximage;
}
break;
case 16:
xmesa->xm_draw_buffer->back_clear_func = clear_16bit_ximage;
break;
case 24:
xmesa->xm_draw_buffer->back_clear_func = clear_24bit_ximage;
break;
case 32:
xmesa->xm_draw_buffer->back_clear_func = clear_32bit_ximage;
break;
default:
xmesa->xm_draw_buffer->back_clear_func = clear_nbit_ximage;
break;
}
else {
xmesa->xm_draw_buffer->back_clear_func = clear_8bit_ximage;
}
break;
case 16:
xmesa->xm_draw_buffer->back_clear_func = clear_16bit_ximage;
break;
case 24:
xmesa->xm_draw_buffer->back_clear_func = clear_24bit_ximage;
break;
case 32:
xmesa->xm_draw_buffer->back_clear_func = clear_32bit_ximage;
break;
default:
xmesa->xm_draw_buffer->back_clear_func = clear_nbit_ximage;
break;
}
if (ctx->Color._DrawDestMask[0] & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT)) {