1046 lines
32 KiB
C
1046 lines
32 KiB
C
/* $Id: xm_dd.c,v 1.43 2003/03/25 02:26:30 brianp Exp $ */
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/*
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* Mesa 3-D graphics library
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* Version: 4.0.3
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*
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* Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/* $XFree86: xc/extras/Mesa/src/X/xm_dd.c,v 1.2 2002/02/26 23:37:31 tsi Exp $ */
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#include "glxheader.h"
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#include "context.h"
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#include "colormac.h"
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#include "depth.h"
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#include "drawpix.h"
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#include "extensions.h"
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#include "macros.h"
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#include "imports.h"
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#include "mtypes.h"
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#include "state.h"
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#include "texobj.h"
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#include "texstore.h"
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#include "texformat.h"
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#include "xmesaP.h"
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#include "array_cache/acache.h"
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#include "swrast/s_context.h"
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#include "swrast/swrast.h"
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#include "swrast/s_alphabuf.h"
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#include "swrast_setup/swrast_setup.h"
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#include "tnl/tnl.h"
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#include "tnl/t_context.h"
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#include "tnl/t_pipeline.h"
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/*
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* Return the size (width, height) of the X window for the given GLframebuffer.
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* Output: width - width of buffer in pixels.
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* height - height of buffer in pixels.
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*/
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static void
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get_buffer_size( GLframebuffer *buffer, GLuint *width, GLuint *height )
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{
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/* We can do this cast because the first field in the XMesaBuffer
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* struct is a GLframebuffer struct. If this weren't true, we'd
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* need a pointer from the GLframebuffer to the XMesaBuffer.
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*/
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const XMesaBuffer xmBuffer = (XMesaBuffer) buffer;
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unsigned int winwidth, winheight;
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#ifdef XFree86Server
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/* XFree86 GLX renderer */
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if (xmBuffer->frontbuffer->width > MAX_WIDTH ||
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xmBuffer->frontbuffer->height > MAX_HEIGHT) {
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winwidth = buffer->Width;
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winheight = buffer->Height;
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} else {
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winwidth = xmBuffer->frontbuffer->width;
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winheight = xmBuffer->frontbuffer->height;
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}
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#else
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Window root;
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int winx, winy;
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unsigned int bw, d;
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_glthread_LOCK_MUTEX(_xmesa_lock);
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XSync(xmBuffer->xm_visual->display, 0); /* added for Chromium */
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XGetGeometry( xmBuffer->xm_visual->display, xmBuffer->frontbuffer, &root,
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&winx, &winy, &winwidth, &winheight, &bw, &d );
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_glthread_UNLOCK_MUTEX(_xmesa_lock);
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#endif
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(void)kernel8; /* Muffle compiler */
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*width = winwidth;
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*height = winheight;
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}
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static void
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finish( GLcontext *ctx )
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{
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#ifdef XFree86Server
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/* NOT_NEEDED */
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#else
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const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
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if (xmesa) {
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_glthread_LOCK_MUTEX(_xmesa_lock);
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XSync( xmesa->display, False );
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_glthread_UNLOCK_MUTEX(_xmesa_lock);
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}
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#endif
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}
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static void
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flush( GLcontext *ctx )
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{
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#ifdef XFree86Server
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/* NOT_NEEDED */
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#else
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const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
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if (xmesa) {
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_glthread_LOCK_MUTEX(_xmesa_lock);
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XFlush( xmesa->display );
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_glthread_UNLOCK_MUTEX(_xmesa_lock);
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}
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#endif
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}
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/*
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* This chooses the color buffer for reading and writing spans, points,
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* lines, and triangles.
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*/
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static void
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set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit )
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{
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/* We can make this cast since the XMesaBuffer wraps GLframebuffer.
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* GLframebuffer is the first member in a XMesaBuffer struct.
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*/
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XMesaBuffer target = (XMesaBuffer) buffer;
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const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
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/* This assignment tells the span/point/line/triangle functions
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* which XMesaBuffer to use.
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*/
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xmesa->xm_buffer = target;
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/*
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* Now determine front vs back color buffer.
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*/
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if (bufferBit == FRONT_LEFT_BIT) {
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target->buffer = target->frontbuffer;
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}
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else if (bufferBit == BACK_LEFT_BIT) {
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ASSERT(target->db_state);
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if (target->backpixmap) {
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/* back buffer is a pixmape */
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target->buffer = target->backpixmap; /* incompatible types? */
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}
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else if (target->backimage) {
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/* back buffer is an XImage */
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target->buffer = None;
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}
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else {
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/* No back buffer!!!! Must be out of memory, use front buffer */
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target->buffer = target->frontbuffer;
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}
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}
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else {
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_mesa_problem(ctx, "invalid buffer 0x%x in set_buffer() in xm_dd.c");
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return;
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}
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xmesa_update_span_funcs(ctx);
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}
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static void
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clear_index( GLcontext *ctx, GLuint index )
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{
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const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
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xmesa->clearpixel = (unsigned long) index;
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XMesaSetForeground( xmesa->display, xmesa->xm_draw_buffer->cleargc,
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(unsigned long) index );
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}
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static void
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clear_color( GLcontext *ctx, const GLfloat color[4] )
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{
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const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
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CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[0], color[0]);
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CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[1], color[1]);
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CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[2], color[2]);
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CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[3], color[3]);
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xmesa->clearpixel = xmesa_color_to_pixel( xmesa,
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xmesa->clearcolor[0],
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xmesa->clearcolor[1],
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xmesa->clearcolor[2],
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xmesa->clearcolor[3],
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xmesa->xm_visual->undithered_pf );
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_glthread_LOCK_MUTEX(_xmesa_lock);
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XMesaSetForeground( xmesa->display, xmesa->xm_draw_buffer->cleargc,
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xmesa->clearpixel );
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_glthread_UNLOCK_MUTEX(_xmesa_lock);
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}
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/* Set index mask ala glIndexMask */
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static void
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index_mask( GLcontext *ctx, GLuint mask )
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{
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const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
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if (xmesa->xm_draw_buffer->buffer != XIMAGE) {
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unsigned long m;
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if (mask==0xffffffff) {
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m = ((unsigned long)~0L);
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}
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else {
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m = (unsigned long) mask;
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}
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XMesaSetPlaneMask( xmesa->display, xmesa->xm_draw_buffer->cleargc, m );
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XMesaSetPlaneMask( xmesa->display, xmesa->xm_draw_buffer->gc, m );
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}
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}
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/* Implements glColorMask() */
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static void
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color_mask(GLcontext *ctx,
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GLboolean rmask, GLboolean gmask, GLboolean bmask, GLboolean amask)
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{
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const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
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int xclass = GET_VISUAL_CLASS(xmesa->xm_visual);
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(void) amask;
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if (xclass == TrueColor || xclass == DirectColor) {
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unsigned long m;
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if (rmask && gmask && bmask) {
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m = ((unsigned long)~0L);
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}
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else {
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m = 0;
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if (rmask) m |= GET_REDMASK(xmesa->xm_visual);
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if (gmask) m |= GET_GREENMASK(xmesa->xm_visual);
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if (bmask) m |= GET_BLUEMASK(xmesa->xm_visual);
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}
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XMesaSetPlaneMask( xmesa->display, xmesa->xm_draw_buffer->cleargc, m );
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}
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}
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/**********************************************************************/
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/*** glClear implementations ***/
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/**********************************************************************/
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static void
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clear_front_pixmap( GLcontext *ctx, GLboolean all,
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GLint x, GLint y, GLint width, GLint height )
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{
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const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
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if (all) {
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XMesaFillRectangle( xmesa->display, xmesa->xm_draw_buffer->frontbuffer,
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xmesa->xm_draw_buffer->cleargc,
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0, 0,
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xmesa->xm_draw_buffer->width+1,
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xmesa->xm_draw_buffer->height+1 );
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}
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else {
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XMesaFillRectangle( xmesa->display, xmesa->xm_draw_buffer->frontbuffer,
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xmesa->xm_draw_buffer->cleargc,
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x, xmesa->xm_draw_buffer->height - y - height,
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width, height );
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}
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}
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static void
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clear_back_pixmap( GLcontext *ctx, GLboolean all,
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GLint x, GLint y, GLint width, GLint height )
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{
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const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
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if (all) {
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XMesaFillRectangle( xmesa->display, xmesa->xm_draw_buffer->backpixmap,
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xmesa->xm_draw_buffer->cleargc,
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0, 0,
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xmesa->xm_draw_buffer->width+1,
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xmesa->xm_draw_buffer->height+1 );
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}
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else {
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XMesaFillRectangle( xmesa->display, xmesa->xm_draw_buffer->backpixmap,
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xmesa->xm_draw_buffer->cleargc,
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x, xmesa->xm_draw_buffer->height - y - height,
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width, height );
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}
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}
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static void
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clear_8bit_ximage( GLcontext *ctx, GLboolean all,
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GLint x, GLint y, GLint width, GLint height )
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{
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const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
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if (all) {
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size_t n = xmesa->xm_draw_buffer->backimage->bytes_per_line
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* xmesa->xm_draw_buffer->backimage->height;
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MEMSET( xmesa->xm_draw_buffer->backimage->data, xmesa->clearpixel, n );
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}
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else {
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GLint i;
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for (i=0;i<height;i++) {
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GLubyte *ptr = PIXELADDR1( xmesa->xm_draw_buffer, x, y+i );
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MEMSET( ptr, xmesa->clearpixel, width );
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}
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}
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}
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static void
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clear_HPCR_ximage( GLcontext *ctx, GLboolean all,
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GLint x, GLint y, GLint width, GLint height )
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{
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const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
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if (all) {
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GLint i, c16 = (xmesa->xm_draw_buffer->backimage->bytes_per_line>>4)<<4;
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GLubyte *ptr = (GLubyte *)xmesa->xm_draw_buffer->backimage->data;
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for (i=0; i<xmesa->xm_draw_buffer->backimage->height; i++) {
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GLint j;
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GLubyte *sptr = xmesa->xm_visual->hpcr_clear_ximage_pattern[0];
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if (i&1) {
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sptr += 16;
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}
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for (j=0; j<c16; j+=16) {
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ptr[0] = sptr[0];
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ptr[1] = sptr[1];
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ptr[2] = sptr[2];
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ptr[3] = sptr[3];
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ptr[4] = sptr[4];
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ptr[5] = sptr[5];
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ptr[6] = sptr[6];
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ptr[7] = sptr[7];
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ptr[8] = sptr[8];
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ptr[9] = sptr[9];
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ptr[10] = sptr[10];
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ptr[11] = sptr[11];
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ptr[12] = sptr[12];
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ptr[13] = sptr[13];
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ptr[14] = sptr[14];
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ptr[15] = sptr[15];
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ptr += 16;
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}
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for (; j<xmesa->xm_draw_buffer->backimage->bytes_per_line; j++) {
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*ptr = sptr[j&15];
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ptr++;
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}
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}
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}
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else {
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GLint i;
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for (i=y; i<y+height; i++) {
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GLubyte *ptr = PIXELADDR1( xmesa->xm_draw_buffer, x, i );
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int j;
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GLubyte *sptr = xmesa->xm_visual->hpcr_clear_ximage_pattern[0];
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if (i&1) {
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sptr += 16;
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}
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for (j=x; j<x+width; j++) {
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*ptr = sptr[j&15];
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ptr++;
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}
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}
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}
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}
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static void
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clear_16bit_ximage( GLcontext *ctx, GLboolean all,
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GLint x, GLint y, GLint width, GLint height )
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{
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const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
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register GLuint pixel = (GLuint) xmesa->clearpixel;
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if (xmesa->swapbytes) {
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pixel = ((pixel >> 8) & 0x00ff) | ((pixel << 8) & 0xff00);
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}
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if (all) {
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register GLuint n;
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register GLuint *ptr4 = (GLuint *) xmesa->xm_draw_buffer->backimage->data;
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if ((pixel & 0xff) == ((pixel >> 8) & 0xff)) {
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/* low and high bytes are equal so use memset() */
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n = xmesa->xm_draw_buffer->backimage->bytes_per_line
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* xmesa->xm_draw_buffer->height;
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MEMSET( ptr4, pixel & 0xff, n );
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}
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else {
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pixel = pixel | (pixel<<16);
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n = xmesa->xm_draw_buffer->backimage->bytes_per_line
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* xmesa->xm_draw_buffer->height / 4;
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do {
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*ptr4++ = pixel;
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n--;
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} while (n!=0);
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if ((xmesa->xm_draw_buffer->backimage->bytes_per_line *
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xmesa->xm_draw_buffer->height) & 0x2)
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*(GLushort *)ptr4 = pixel & 0xffff;
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}
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}
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else {
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register int i, j;
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for (j=0;j<height;j++) {
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register GLushort *ptr2 = PIXELADDR2( xmesa->xm_draw_buffer, x, y+j );
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for (i=0;i<width;i++) {
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*ptr2++ = pixel;
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}
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}
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}
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}
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/* Optimized code provided by Nozomi Ytow <noz@xfree86.org> */
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static void
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clear_24bit_ximage( GLcontext *ctx, GLboolean all,
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GLint x, GLint y, GLint width, GLint height )
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{
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const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
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const GLubyte r = xmesa->clearcolor[0];
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const GLubyte g = xmesa->clearcolor[1];
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const GLubyte b = xmesa->clearcolor[2];
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register GLuint clearPixel;
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if (xmesa->swapbytes) {
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clearPixel = (b << 16) | (g << 8) | r;
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}
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else {
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clearPixel = (r << 16) | (g << 8) | b;
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}
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if (all) {
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if (r==g && g==b) {
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/* same value for all three components (gray) */
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const GLint w3 = xmesa->xm_draw_buffer->width * 3;
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const GLint h = xmesa->xm_draw_buffer->height;
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GLint i;
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for (i = 0; i < h; i++) {
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bgr_t *ptr3 = PIXELADDR3(xmesa->xm_draw_buffer, 0, i);
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MEMSET(ptr3, r, w3);
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}
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}
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else {
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/* the usual case */
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const GLint w = xmesa->xm_draw_buffer->width;
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const GLint h = xmesa->xm_draw_buffer->height;
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GLint i, j;
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for (i = 0; i < h; i++) {
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bgr_t *ptr3 = PIXELADDR3(xmesa->xm_draw_buffer, 0, i);
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for (j = 0; j < w; j++) {
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ptr3->r = r;
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ptr3->g = g;
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ptr3->b = b;
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ptr3++;
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}
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}
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#if 0 /* this code doesn't work for all window widths */
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register GLuint *ptr4 = (GLuint *) ptr3;
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register GLuint px;
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GLuint pixel4[3];
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register GLuint *p = pixel4;
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pixel4[0] = clearPixel | (clearPixel << 24);
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pixel4[1] = (clearPixel << 16) | (clearPixel >> 8);
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pixel4[2] = (clearPixel << 8) | (clearPixel >> 16);
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switch (3 & (int)(ptr3 - (bgr_t*) ptr4)){
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case 0:
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break;
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case 1:
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px = *ptr4 & 0x00ffffff;
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px |= pixel4[0] & 0xff000000;
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*ptr4++ = px;
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px = *ptr4 & 0xffff0000;
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px |= pixel4[2] & 0x0000ffff;
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*ptr4 = px;
|
|
if (0 == --n)
|
|
break;
|
|
case 2:
|
|
px = *ptr4 & 0x0000fffff;
|
|
px |= pixel4[1] & 0xffff0000;
|
|
*ptr4++ = px;
|
|
px = *ptr4 & 0xffffff00;
|
|
px |= pixel4[2] & 0x000000ff;
|
|
*ptr4 = px;
|
|
if (0 == --n)
|
|
break;
|
|
case 3:
|
|
px = *ptr4 & 0x000000ff;
|
|
px |= pixel4[2] & 0xffffff00;
|
|
*ptr4++ = px;
|
|
--n;
|
|
break;
|
|
}
|
|
while (n > 3) {
|
|
p = pixel4;
|
|
*ptr4++ = *p++;
|
|
*ptr4++ = *p++;
|
|
*ptr4++ = *p++;
|
|
n -= 4;
|
|
}
|
|
switch (n) {
|
|
case 3:
|
|
p = pixel4;
|
|
*ptr4++ = *p++;
|
|
*ptr4++ = *p++;
|
|
px = *ptr4 & 0xffffff00;
|
|
px |= clearPixel & 0xff;
|
|
*ptr4 = px;
|
|
break;
|
|
case 2:
|
|
p = pixel4;
|
|
*ptr4++ = *p++;
|
|
px = *ptr4 & 0xffff0000;
|
|
px |= *p & 0xffff;
|
|
*ptr4 = px;
|
|
break;
|
|
case 1:
|
|
px = *ptr4 & 0xff000000;
|
|
px |= *p & 0xffffff;
|
|
*ptr4 = px;
|
|
break;
|
|
case 0:
|
|
break;
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
else {
|
|
/* only clear subrect of color buffer */
|
|
if (r==g && g==b) {
|
|
/* same value for all three components (gray) */
|
|
GLint j;
|
|
for (j=0;j<height;j++) {
|
|
bgr_t *ptr3 = PIXELADDR3( xmesa->xm_draw_buffer, x, y+j );
|
|
MEMSET(ptr3, r, 3 * width);
|
|
}
|
|
}
|
|
else {
|
|
/* non-gray clear color */
|
|
GLint i, j;
|
|
for (j = 0; j < height; j++) {
|
|
bgr_t *ptr3 = PIXELADDR3( xmesa->xm_draw_buffer, x, y+j );
|
|
for (i = 0; i < width; i++) {
|
|
ptr3->r = r;
|
|
ptr3->g = g;
|
|
ptr3->b = b;
|
|
ptr3++;
|
|
}
|
|
}
|
|
#if 0 /* this code might not always (seems ptr3 always == ptr4) */
|
|
GLint j;
|
|
GLuint pixel4[3];
|
|
pixel4[0] = clearPixel | (clearPixel << 24);
|
|
pixel4[1] = (clearPixel << 16) | (clearPixel >> 8);
|
|
pixel4[2] = (clearPixel << 8) | (clearPixel >> 16);
|
|
for (j=0;j<height;j++) {
|
|
bgr_t *ptr3 = PIXELADDR3( xmesa->xm_draw_buffer, x, y+j );
|
|
register GLuint *ptr4 = (GLuint *)ptr3;
|
|
register GLuint *p, px;
|
|
GLuint w = width;
|
|
switch (3 & (int)(ptr3 - (bgr_t*) ptr4)){
|
|
case 0:
|
|
break;
|
|
case 1:
|
|
px = *ptr4 & 0x00ffffff;
|
|
px |= pixel4[0] & 0xff000000;
|
|
*ptr4++ = px;
|
|
px = *ptr4 & 0xffff0000;
|
|
px |= pixel4[2] & 0x0000ffff;
|
|
*ptr4 = px;
|
|
if (0 == --w)
|
|
break;
|
|
case 2:
|
|
px = *ptr4 & 0x0000fffff;
|
|
px |= pixel4[1] & 0xffff0000;
|
|
*ptr4++ = px;
|
|
px = *ptr4 & 0xffffff00;
|
|
px |= pixel4[2] & 0x000000ff;
|
|
*ptr4 = px;
|
|
if (0 == --w)
|
|
break;
|
|
case 3:
|
|
px = *ptr4 & 0x000000ff;
|
|
px |= pixel4[2] & 0xffffff00;
|
|
*ptr4++ = px;
|
|
--w;
|
|
break;
|
|
}
|
|
while (w > 3){
|
|
p = pixel4;
|
|
*ptr4++ = *p++;
|
|
*ptr4++ = *p++;
|
|
*ptr4++ = *p++;
|
|
w -= 4;
|
|
}
|
|
switch (w) {
|
|
case 3:
|
|
p = pixel4;
|
|
*ptr4++ = *p++;
|
|
*ptr4++ = *p++;
|
|
px = *ptr4 & 0xffffff00;
|
|
px |= *p & 0xff;
|
|
*ptr4 = px;
|
|
break;
|
|
case 2:
|
|
p = pixel4;
|
|
*ptr4++ = *p++;
|
|
px = *ptr4 & 0xffff0000;
|
|
px |= *p & 0xffff;
|
|
*ptr4 = px;
|
|
break;
|
|
case 1:
|
|
px = *ptr4 & 0xff000000;
|
|
px |= pixel4[0] & 0xffffff;
|
|
*ptr4 = px;
|
|
break;
|
|
case 0:
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
clear_32bit_ximage( GLcontext *ctx, GLboolean all,
|
|
GLint x, GLint y, GLint width, GLint height )
|
|
{
|
|
const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
|
|
register GLuint pixel = (GLuint) xmesa->clearpixel;
|
|
if (xmesa->swapbytes) {
|
|
pixel = ((pixel >> 24) & 0x000000ff)
|
|
| ((pixel >> 8) & 0x0000ff00)
|
|
| ((pixel << 8) & 0x00ff0000)
|
|
| ((pixel << 24) & 0xff000000);
|
|
}
|
|
if (all) {
|
|
register GLint n = xmesa->xm_draw_buffer->width * xmesa->xm_draw_buffer->height;
|
|
register GLuint *ptr4 = (GLuint *) xmesa->xm_draw_buffer->backimage->data;
|
|
if (pixel==0) {
|
|
MEMSET( ptr4, pixel, 4*n );
|
|
}
|
|
else {
|
|
do {
|
|
*ptr4++ = pixel;
|
|
n--;
|
|
} while (n!=0);
|
|
}
|
|
}
|
|
else {
|
|
register int i, j;
|
|
for (j=0;j<height;j++) {
|
|
register GLuint *ptr4 = PIXELADDR4( xmesa->xm_draw_buffer, x, y+j );
|
|
for (i=0;i<width;i++) {
|
|
*ptr4++ = pixel;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
clear_nbit_ximage( GLcontext *ctx, GLboolean all,
|
|
GLint x, GLint y, GLint width, GLint height )
|
|
{
|
|
const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
|
|
XMesaImage *img = xmesa->xm_draw_buffer->backimage;
|
|
if (all) {
|
|
register int i, j;
|
|
width = xmesa->xm_draw_buffer->width;
|
|
height = xmesa->xm_draw_buffer->height;
|
|
for (j=0;j<height;j++) {
|
|
for (i=0;i<width;i++) {
|
|
XMesaPutPixel( img, i, j, xmesa->clearpixel );
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
/* TODO: optimize this */
|
|
register int i, j;
|
|
y = FLIP(xmesa->xm_draw_buffer, y);
|
|
for (j=0;j<height;j++) {
|
|
for (i=0;i<width;i++) {
|
|
XMesaPutPixel( img, x+i, y-j, xmesa->clearpixel );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
clear_buffers( GLcontext *ctx, GLbitfield mask,
|
|
GLboolean all, GLint x, GLint y, GLint width, GLint height )
|
|
{
|
|
const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
|
|
const GLuint *colorMask = (GLuint *) &ctx->Color.ColorMask;
|
|
|
|
if ((mask & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT)) &&
|
|
xmesa->xm_draw_buffer->mesa_buffer.UseSoftwareAlphaBuffers &&
|
|
ctx->Color.ColorMask[ACOMP]) {
|
|
_swrast_clear_alpha_buffers(ctx);
|
|
}
|
|
|
|
/* we can't handle color or index masking */
|
|
if (*colorMask == 0xffffffff && ctx->Color.IndexMask == 0xffffffff) {
|
|
if (mask & DD_FRONT_LEFT_BIT) {
|
|
ASSERT(xmesa->xm_draw_buffer->front_clear_func);
|
|
(*xmesa->xm_draw_buffer->front_clear_func)( ctx, all, x, y, width, height );
|
|
mask &= ~DD_FRONT_LEFT_BIT;
|
|
}
|
|
if (mask & DD_BACK_LEFT_BIT) {
|
|
ASSERT(xmesa->xm_draw_buffer->back_clear_func);
|
|
(*xmesa->xm_draw_buffer->back_clear_func)( ctx, all, x, y, width, height );
|
|
mask &= ~DD_BACK_LEFT_BIT;
|
|
}
|
|
}
|
|
|
|
if (mask)
|
|
_swrast_Clear( ctx, mask, all, x, y, width, height );
|
|
}
|
|
|
|
|
|
/*
|
|
* When we detect that the user has resized the window this function will
|
|
* get called. Here we'll reallocate the back buffer, depth buffer,
|
|
* stencil buffer etc. to match the new window size.
|
|
*/
|
|
void
|
|
xmesa_resize_buffers( GLframebuffer *buffer )
|
|
{
|
|
int height = (int) buffer->Height;
|
|
/* We can do this cast because the first field in the XMesaBuffer
|
|
* struct is a GLframebuffer struct. If this weren't true, we'd
|
|
* need a pointer from the GLframebuffer to the XMesaBuffer.
|
|
*/
|
|
XMesaBuffer xmBuffer = (XMesaBuffer) buffer;
|
|
|
|
xmBuffer->width = buffer->Width;
|
|
xmBuffer->height = buffer->Height;
|
|
xmesa_alloc_back_buffer( xmBuffer );
|
|
|
|
/* Needed by FLIP macro */
|
|
xmBuffer->bottom = height - 1;
|
|
|
|
if (xmBuffer->backimage) {
|
|
/* Needed by PIXELADDR1 macro */
|
|
xmBuffer->ximage_width1 = xmBuffer->backimage->bytes_per_line;
|
|
xmBuffer->ximage_origin1 = (GLubyte *) xmBuffer->backimage->data
|
|
+ xmBuffer->ximage_width1 * (height-1);
|
|
|
|
/* Needed by PIXELADDR2 macro */
|
|
xmBuffer->ximage_width2 = xmBuffer->backimage->bytes_per_line / 2;
|
|
xmBuffer->ximage_origin2 = (GLushort *) xmBuffer->backimage->data
|
|
+ xmBuffer->ximage_width2 * (height-1);
|
|
|
|
/* Needed by PIXELADDR3 macro */
|
|
xmBuffer->ximage_width3 = xmBuffer->backimage->bytes_per_line;
|
|
xmBuffer->ximage_origin3 = (GLubyte *) xmBuffer->backimage->data
|
|
+ xmBuffer->ximage_width3 * (height-1);
|
|
|
|
/* Needed by PIXELADDR4 macro */
|
|
xmBuffer->ximage_width4 = xmBuffer->backimage->width;
|
|
xmBuffer->ximage_origin4 = (GLuint *) xmBuffer->backimage->data
|
|
+ xmBuffer->ximage_width4 * (height-1);
|
|
}
|
|
|
|
_swrast_alloc_buffers( buffer );
|
|
}
|
|
|
|
#if 0
|
|
/*
|
|
* This function implements glDrawPixels() with an XPutImage call when
|
|
* drawing to the front buffer (X Window drawable).
|
|
* The image format must be GL_BGRA to match the PF_8R8G8B pixel format.
|
|
* XXX top/bottom edge clipping is broken!
|
|
*/
|
|
static GLboolean
|
|
drawpixels_8R8G8B( GLcontext *ctx,
|
|
GLint x, GLint y, GLsizei width, GLsizei height,
|
|
GLenum format, GLenum type,
|
|
const struct gl_pixelstore_attrib *unpack,
|
|
const GLvoid *pixels )
|
|
{
|
|
const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
|
|
XMesaDisplay *dpy = xmesa->xm_visual->display;
|
|
XMesaDrawable buffer = xmesa->xm_draw_buffer->buffer;
|
|
XMesaGC gc = xmesa->xm_draw_buffer->gc;
|
|
assert(dpy);
|
|
assert(buffer);
|
|
assert(gc);
|
|
|
|
/* XXX also check for pixel scale/bias/lookup/zooming! */
|
|
if (format == GL_BGRA && type == GL_UNSIGNED_BYTE) {
|
|
int dstX = x;
|
|
int dstY = y;
|
|
int w = width;
|
|
int h = height;
|
|
int srcX = unpack->SkipPixels;
|
|
int srcY = unpack->SkipRows;
|
|
if (_mesa_clip_pixelrect(ctx, &dstX, &dstY, &w, &h, &srcX, &srcY)) {
|
|
XMesaImage ximage;
|
|
MEMSET(&ximage, 0, sizeof(XMesaImage));
|
|
ximage.width = width;
|
|
ximage.height = height;
|
|
ximage.format = ZPixmap;
|
|
ximage.data = (char *) pixels + (height - 1) * width * 4;
|
|
ximage.byte_order = LSBFirst;
|
|
ximage.bitmap_unit = 32;
|
|
ximage.bitmap_bit_order = LSBFirst;
|
|
ximage.bitmap_pad = 32;
|
|
ximage.depth = 24;
|
|
ximage.bytes_per_line = -width * 4;
|
|
ximage.bits_per_pixel = 32;
|
|
ximage.red_mask = 0xff0000;
|
|
ximage.green_mask = 0x00ff00;
|
|
ximage.blue_mask = 0x0000ff;
|
|
dstY = FLIP(xmesa->xm_draw_buffer,dstY) - height + 1;
|
|
XPutImage(dpy, buffer, gc, &ximage, srcX, srcY, dstX, dstY, w, h);
|
|
return GL_TRUE;
|
|
}
|
|
}
|
|
return GL_FALSE;
|
|
}
|
|
#endif
|
|
|
|
|
|
|
|
static const GLubyte *
|
|
get_string( GLcontext *ctx, GLenum name )
|
|
{
|
|
(void) ctx;
|
|
switch (name) {
|
|
case GL_RENDERER:
|
|
#ifdef XFree86Server
|
|
return (const GLubyte *) "Mesa GLX Indirect";
|
|
#else
|
|
return (const GLubyte *) "Mesa X11";
|
|
#endif
|
|
case GL_VENDOR:
|
|
#ifdef XFree86Server
|
|
return (const GLubyte *) "Mesa project: www.mesa3d.org";
|
|
#else
|
|
return NULL;
|
|
#endif
|
|
default:
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
enable( GLcontext *ctx, GLenum pname, GLboolean state )
|
|
{
|
|
const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
|
|
|
|
switch (pname) {
|
|
case GL_DITHER:
|
|
if (state)
|
|
xmesa->pixelformat = xmesa->xm_visual->dithered_pf;
|
|
else
|
|
xmesa->pixelformat = xmesa->xm_visual->undithered_pf;
|
|
break;
|
|
default:
|
|
; /* silence compiler warning */
|
|
}
|
|
}
|
|
|
|
|
|
void xmesa_update_state( GLcontext *ctx, GLuint new_state )
|
|
{
|
|
const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx;
|
|
|
|
/* Propogate statechange information to swrast and swrast_setup
|
|
* modules. The X11 driver has no internal GL-dependent state.
|
|
*/
|
|
_swrast_InvalidateState( ctx, new_state );
|
|
_ac_InvalidateState( ctx, new_state );
|
|
_tnl_InvalidateState( ctx, new_state );
|
|
_swsetup_InvalidateState( ctx, new_state );
|
|
|
|
|
|
/* setup pointers to front and back buffer clear functions */
|
|
xmesa->xm_draw_buffer->front_clear_func = clear_front_pixmap;
|
|
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 {
|
|
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;
|
|
}
|
|
|
|
xmesa_update_span_funcs(ctx);
|
|
}
|
|
|
|
|
|
|
|
/* Setup pointers and other driver state that is constant for the life
|
|
* of a context.
|
|
*/
|
|
void xmesa_init_pointers( GLcontext *ctx )
|
|
{
|
|
TNLcontext *tnl;
|
|
struct swrast_device_driver *dd = _swrast_GetDeviceDriverReference( ctx );
|
|
|
|
ctx->Driver.GetString = get_string;
|
|
ctx->Driver.GetBufferSize = get_buffer_size;
|
|
ctx->Driver.Flush = flush;
|
|
ctx->Driver.Finish = finish;
|
|
|
|
/* Software rasterizer pixel paths:
|
|
*/
|
|
ctx->Driver.Accum = _swrast_Accum;
|
|
ctx->Driver.Bitmap = _swrast_Bitmap;
|
|
ctx->Driver.Clear = clear_buffers;
|
|
ctx->Driver.ResizeBuffers = xmesa_resize_buffers;
|
|
ctx->Driver.CopyPixels = _swrast_CopyPixels;
|
|
ctx->Driver.DrawPixels = _swrast_DrawPixels;
|
|
ctx->Driver.ReadPixels = _swrast_ReadPixels;
|
|
ctx->Driver.DrawBuffer = _swrast_DrawBuffer;
|
|
|
|
/* Software texture functions:
|
|
*/
|
|
ctx->Driver.ChooseTextureFormat = _mesa_choose_tex_format;
|
|
ctx->Driver.TexImage1D = _mesa_store_teximage1d;
|
|
ctx->Driver.TexImage2D = _mesa_store_teximage2d;
|
|
ctx->Driver.TexImage3D = _mesa_store_teximage3d;
|
|
ctx->Driver.TexSubImage1D = _mesa_store_texsubimage1d;
|
|
ctx->Driver.TexSubImage2D = _mesa_store_texsubimage2d;
|
|
ctx->Driver.TexSubImage3D = _mesa_store_texsubimage3d;
|
|
ctx->Driver.TestProxyTexImage = _mesa_test_proxy_teximage;
|
|
|
|
ctx->Driver.CopyTexImage1D = _swrast_copy_teximage1d;
|
|
ctx->Driver.CopyTexImage2D = _swrast_copy_teximage2d;
|
|
ctx->Driver.CopyTexSubImage1D = _swrast_copy_texsubimage1d;
|
|
ctx->Driver.CopyTexSubImage2D = _swrast_copy_texsubimage2d;
|
|
ctx->Driver.CopyTexSubImage3D = _swrast_copy_texsubimage3d;
|
|
|
|
ctx->Driver.NewTextureObject = _mesa_alloc_texture_object;
|
|
ctx->Driver.DeleteTexture = _mesa_free_texture_object;
|
|
|
|
ctx->Driver.CompressedTexImage1D = _mesa_store_compressed_teximage1d;
|
|
ctx->Driver.CompressedTexImage2D = _mesa_store_compressed_teximage2d;
|
|
ctx->Driver.CompressedTexImage3D = _mesa_store_compressed_teximage3d;
|
|
ctx->Driver.CompressedTexSubImage1D = _mesa_store_compressed_texsubimage1d;
|
|
ctx->Driver.CompressedTexSubImage2D = _mesa_store_compressed_texsubimage2d;
|
|
ctx->Driver.CompressedTexSubImage3D = _mesa_store_compressed_texsubimage3d;
|
|
|
|
/* Swrast hooks for imaging extensions:
|
|
*/
|
|
ctx->Driver.CopyColorTable = _swrast_CopyColorTable;
|
|
ctx->Driver.CopyColorSubTable = _swrast_CopyColorSubTable;
|
|
ctx->Driver.CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
|
|
ctx->Driver.CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
|
|
|
|
|
|
/* Statechange callbacks:
|
|
*/
|
|
ctx->Driver.ClearIndex = clear_index;
|
|
ctx->Driver.ClearColor = clear_color;
|
|
ctx->Driver.IndexMask = index_mask;
|
|
ctx->Driver.ColorMask = color_mask;
|
|
ctx->Driver.Enable = enable;
|
|
|
|
|
|
/* Initialize the TNL driver interface:
|
|
*/
|
|
tnl = TNL_CONTEXT(ctx);
|
|
tnl->Driver.RunPipeline = _tnl_run_pipeline;
|
|
|
|
dd->SetBuffer = set_buffer;
|
|
|
|
/* Install swsetup for tnl->Driver.Render.*:
|
|
*/
|
|
_swsetup_Wakeup(ctx);
|
|
|
|
(void) DitherValues; /* silenced unused var warning */
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
#define XMESA_NEW_POINT (_NEW_POINT | \
|
|
_NEW_RENDERMODE | \
|
|
_SWRAST_NEW_RASTERMASK)
|
|
|
|
#define XMESA_NEW_LINE (_NEW_LINE | \
|
|
_NEW_TEXTURE | \
|
|
_NEW_LIGHT | \
|
|
_NEW_DEPTH | \
|
|
_NEW_RENDERMODE | \
|
|
_SWRAST_NEW_RASTERMASK)
|
|
|
|
#define XMESA_NEW_TRIANGLE (_NEW_POLYGON | \
|
|
_NEW_TEXTURE | \
|
|
_NEW_LIGHT | \
|
|
_NEW_DEPTH | \
|
|
_NEW_RENDERMODE | \
|
|
_SWRAST_NEW_RASTERMASK)
|
|
|
|
|
|
/* Extend the software rasterizer with our line/point/triangle
|
|
* functions.
|
|
*/
|
|
void xmesa_register_swrast_functions( GLcontext *ctx )
|
|
{
|
|
SWcontext *swrast = SWRAST_CONTEXT( ctx );
|
|
|
|
swrast->choose_point = xmesa_choose_point;
|
|
swrast->choose_line = xmesa_choose_line;
|
|
swrast->choose_triangle = xmesa_choose_triangle;
|
|
|
|
swrast->invalidate_point |= XMESA_NEW_POINT;
|
|
swrast->invalidate_line |= XMESA_NEW_LINE;
|
|
swrast->invalidate_triangle |= XMESA_NEW_TRIANGLE;
|
|
}
|