X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fdrivers%2Fx11%2Fxm_dd.c;h=c8546236fbf3644b222a96e16149e7ddab152265;hb=a10ba38df7ac80e36db15aaae9f78e7223b2bfae;hp=e2c9e80e94a9011191314c2503515e0c2c776590;hpb=7d58f44f73be59bd3583e6dfeedf56c43f7fbd55;p=mesa.git diff --git a/src/mesa/drivers/x11/xm_dd.c b/src/mesa/drivers/x11/xm_dd.c index e2c9e80e94a..c8546236fbf 100644 --- a/src/mesa/drivers/x11/xm_dd.c +++ b/src/mesa/drivers/x11/xm_dd.c @@ -1,10 +1,8 @@ -/* $Id: xm_dd.c,v 1.22 2001/04/04 21:54:21 brianp Exp $ */ - /* * Mesa 3-D graphics library - * Version: 3.5 + * Version: 6.5.2 * - * Copyright (C) 1999-2001 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"), @@ -25,105 +23,79 @@ */ +/** + * \file xm_dd.h + * General device driver functions for Xlib driver. + */ + #include "glxheader.h" +#include "bufferobj.h" +#include "buffers.h" #include "context.h" +#include "colormac.h" #include "depth.h" #include "drawpix.h" #include "extensions.h" +#include "framebuffer.h" #include "macros.h" -#include "mem.h" +#include "image.h" +#include "imports.h" #include "mtypes.h" #include "state.h" +#include "texobj.h" +#include "teximage.h" #include "texstore.h" #include "texformat.h" #include "xmesaP.h" -#include "array_cache/acache.h" #include "swrast/swrast.h" -#include "swrast/s_alphabuf.h" +#include "swrast/s_context.h" #include "swrast_setup/swrast_setup.h" #include "tnl/tnl.h" #include "tnl/t_context.h" + /* - * Return the size (width,height of the current color buffer. - * This function should be called by the glViewport function because - * glViewport is often called when the window gets resized. We need to - * update some X/Mesa stuff when that happens. - * Output: width - width of buffer in pixels. - * height - height of buffer in pixels. + * Dithering kernels and lookup tables. */ -static void -get_buffer_size( GLcontext *ctx, GLuint *width, GLuint *height ) -{ - const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; - unsigned int winwidth, winheight; -#ifndef XFree86Server - Window root; - int winx, winy; - unsigned int bw, d; - - _glthread_LOCK_MUTEX(_xmesa_lock); - XGetGeometry( xmesa->display, xmesa->xm_buffer->frontbuffer, &root, - &winx, &winy, &winwidth, &winheight, &bw, &d ); - _glthread_UNLOCK_MUTEX(_xmesa_lock); -#else - winwidth = xmesa->xm_buffer->frontbuffer->width; - winheight = xmesa->xm_buffer->frontbuffer->height; -#endif - - *width = winwidth; - *height = winheight; - - if ( winwidth!=xmesa->xm_buffer->width - || winheight!=xmesa->xm_buffer->height) { - xmesa->xm_buffer->width = winwidth; - xmesa->xm_buffer->height = winheight; - xmesa_alloc_back_buffer( xmesa->xm_buffer ); - } - - /* Needed by FLIP macro */ - xmesa->xm_buffer->bottom = (int) winheight - 1; - - if (xmesa->xm_buffer->backimage) { - /* Needed by PIXELADDR1 macro */ - xmesa->xm_buffer->ximage_width1 - = xmesa->xm_buffer->backimage->bytes_per_line; - xmesa->xm_buffer->ximage_origin1 - = (GLubyte *) xmesa->xm_buffer->backimage->data - + xmesa->xm_buffer->ximage_width1 * (winheight-1); - - /* Needed by PIXELADDR2 macro */ - xmesa->xm_buffer->ximage_width2 - = xmesa->xm_buffer->backimage->bytes_per_line / 2; - xmesa->xm_buffer->ximage_origin2 - = (GLushort *) xmesa->xm_buffer->backimage->data - + xmesa->xm_buffer->ximage_width2 * (winheight-1); - - /* Needed by PIXELADDR3 macro */ - xmesa->xm_buffer->ximage_width3 - = xmesa->xm_buffer->backimage->bytes_per_line; - xmesa->xm_buffer->ximage_origin3 - = (GLubyte *) xmesa->xm_buffer->backimage->data - + xmesa->xm_buffer->ximage_width3 * (winheight-1); - - /* Needed by PIXELADDR4 macro */ - xmesa->xm_buffer->ximage_width4 = xmesa->xm_buffer->backimage->width; - xmesa->xm_buffer->ximage_origin4 - = (GLuint *) xmesa->xm_buffer->backimage->data - + xmesa->xm_buffer->ximage_width4 * (winheight-1); +const int xmesa_kernel8[DITH_DY * DITH_DX] = { + 0 * MAXC, 8 * MAXC, 2 * MAXC, 10 * MAXC, + 12 * MAXC, 4 * MAXC, 14 * MAXC, 6 * MAXC, + 3 * MAXC, 11 * MAXC, 1 * MAXC, 9 * MAXC, + 15 * MAXC, 7 * MAXC, 13 * MAXC, 5 * MAXC, +}; + +const short xmesa_HPCR_DRGB[3][2][16] = { + { + { 16, -4, 1,-11, 14, -6, 3, -9, 15, -5, 2,-10, 13, -7, 4, -8}, + {-15, 5, 0, 12,-13, 7, -2, 10,-14, 6, -1, 11,-12, 8, -3, 9} + }, + { + {-11, 15, -7, 3, -8, 14, -4, 2,-10, 16, -6, 4, -9, 13, -5, 1}, + { 12,-14, 8, -2, 9,-13, 5, -1, 11,-15, 7, -3, 10,-12, 6, 0} + }, + { + { 6,-18, 26,-14, 2,-22, 30,-10, 8,-16, 28,-12, 4,-20, 32, -8}, + { -4, 20,-24, 16, 0, 24,-28, 12, -6, 18,-26, 14, -2, 22,-30, 10} } -} +}; + +const int xmesa_kernel1[16] = { + 0*47, 9*47, 4*47, 12*47, /* 47 = (255*3)/16 */ + 6*47, 2*47, 14*47, 8*47, + 10*47, 1*47, 5*47, 11*47, + 7*47, 13*47, 3*47, 15*47 +}; static void -finish( GLcontext *ctx ) +finish_or_flush( GLcontext *ctx ) { #ifdef XFree86Server /* NOT_NEEDED */ #else - const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const XMesaContext xmesa = XMESA_CONTEXT(ctx); if (xmesa) { _glthread_LOCK_MUTEX(_xmesa_lock); XSync( xmesa->display, False ); @@ -133,121 +105,40 @@ finish( GLcontext *ctx ) } -static void -flush( GLcontext *ctx ) -{ -#ifdef XFree86Server - /* NOT_NEEDED */ -#else - const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; - if (xmesa) { - _glthread_LOCK_MUTEX(_xmesa_lock); - XFlush( xmesa->display ); - _glthread_UNLOCK_MUTEX(_xmesa_lock); - } -#endif -} - - - - -static GLboolean -set_draw_buffer( GLcontext *ctx, GLenum mode ) -{ - const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; - if (mode == GL_FRONT_LEFT) { - /* write to front buffer */ - xmesa->xm_buffer->buffer = xmesa->xm_buffer->frontbuffer; - xmesa_update_span_funcs(ctx); - return GL_TRUE; - } - else if (mode==GL_BACK_LEFT && xmesa->xm_buffer->db_state) { - /* write to back buffer */ - if (xmesa->xm_buffer->backpixmap) { - xmesa->xm_buffer->buffer = - (XMesaDrawable)xmesa->xm_buffer->backpixmap; - } - else if (xmesa->xm_buffer->backimage) { - xmesa->xm_buffer->buffer = None; - } - else { - /* just in case there wasn't enough memory for back buffer */ - xmesa->xm_buffer->buffer = xmesa->xm_buffer->frontbuffer; - } - xmesa_update_span_funcs(ctx); - return GL_TRUE; - } - else { - return GL_FALSE; - } -} - - -void -xmesa_set_read_buffer( GLcontext *ctx, GLframebuffer *buffer, GLenum mode ) -{ - XMesaBuffer target; - const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; - - if (buffer == ctx->DrawBuffer) { - target = xmesa->xm_buffer; - xmesa->use_read_buffer = GL_FALSE; - } - else { - ASSERT(buffer == ctx->ReadBuffer); - target = xmesa->xm_read_buffer; - xmesa->use_read_buffer = GL_TRUE; - } - - if (mode == GL_FRONT_LEFT) { - target->buffer = target->frontbuffer; - xmesa_update_span_funcs(ctx); - } - else if (mode==GL_BACK_LEFT && xmesa->xm_read_buffer->db_state) { - if (target->backpixmap) { - target->buffer = (XMesaDrawable)xmesa->xm_buffer->backpixmap; - } - else if (target->backimage) { - target->buffer = None; - } - else { - /* just in case there wasn't enough memory for back buffer */ - target->buffer = target->frontbuffer; - } - xmesa_update_span_funcs(ctx); - } - else { - _mesa_problem(ctx, "invalid buffer in set_read_buffer() in xmesa2.c"); - } -} - - - static void clear_index( GLcontext *ctx, GLuint index ) { - const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; - xmesa->clearpixel = (unsigned long) index; - XMesaSetForeground( xmesa->display, xmesa->xm_buffer->cleargc, - (unsigned long) index ); + if (ctx->DrawBuffer->Name == 0) { + const XMesaContext xmesa = XMESA_CONTEXT(ctx); + XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer); + xmesa->clearpixel = (unsigned long) index; + XMesaSetForeground( xmesa->display, xmbuf->cleargc, (unsigned long) index ); + } } static void -clear_color( GLcontext *ctx, const GLchan color[4] ) +clear_color( GLcontext *ctx, const GLfloat color[4] ) { - const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; - xmesa->clearcolor[0] = color[0]; - xmesa->clearcolor[1] = color[1]; - xmesa->clearcolor[2] = color[2]; - xmesa->clearcolor[3] = color[3]; - xmesa->clearpixel = xmesa_color_to_pixel( xmesa, color[0], color[1], - color[2], color[3], - xmesa->xm_visual->undithered_pf ); - _glthread_LOCK_MUTEX(_xmesa_lock); - XMesaSetForeground( xmesa->display, xmesa->xm_buffer->cleargc, - xmesa->clearpixel ); - _glthread_UNLOCK_MUTEX(_xmesa_lock); + if (ctx->DrawBuffer->Name == 0) { + const XMesaContext xmesa = XMESA_CONTEXT(ctx); + XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer); + + CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[0], color[0]); + CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[1], color[1]); + CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[2], color[2]); + CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[3], color[3]); + xmesa->clearpixel = xmesa_color_to_pixel( ctx, + xmesa->clearcolor[0], + xmesa->clearcolor[1], + xmesa->clearcolor[2], + xmesa->clearcolor[3], + xmesa->xm_visual->undithered_pf ); + _glthread_LOCK_MUTEX(_xmesa_lock); + XMesaSetForeground( xmesa->display, xmbuf->cleargc, + xmesa->clearpixel ); + _glthread_UNLOCK_MUTEX(_xmesa_lock); + } } @@ -256,8 +147,10 @@ clear_color( GLcontext *ctx, const GLchan color[4] ) static void index_mask( GLcontext *ctx, GLuint mask ) { - const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; - if (xmesa->xm_buffer->buffer != XIMAGE) { + const XMesaContext xmesa = XMESA_CONTEXT(ctx); + XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer); + /* not sure this conditional is really needed */ + if (xmbuf->backxrb && xmbuf->backxrb->pixmap) { unsigned long m; if (mask==0xffffffff) { m = ((unsigned long)~0L); @@ -265,7 +158,8 @@ index_mask( GLcontext *ctx, GLuint mask ) else { m = (unsigned long) mask; } - XMesaSetPlaneMask( xmesa->display, xmesa->xm_buffer->cleargc, m ); + XMesaSetPlaneMask( xmesa->display, xmbuf->cleargc, m ); + XMesaSetPlaneMask( xmesa->display, xmbuf->gc, m ); } } @@ -275,12 +169,17 @@ static void color_mask(GLcontext *ctx, GLboolean rmask, GLboolean gmask, GLboolean bmask, GLboolean amask) { - const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; - int xclass = GET_VISUAL_CLASS(xmesa->xm_visual); + const XMesaContext xmesa = XMESA_CONTEXT(ctx); + XMesaBuffer xmbuf; + const int xclass = xmesa->xm_visual->mesa_visual.visualType; (void) amask; - if (xmesa->xm_buffer->buffer != XIMAGE - && (xclass == TrueColor || xclass == DirectColor)) { + if (ctx->DrawBuffer->Name != 0) + return; + + xmbuf = XMESA_BUFFER(ctx->DrawBuffer); + + if (xclass == GLX_TRUE_COLOR || xclass == GLX_DIRECT_COLOR) { unsigned long m; if (rmask && gmask && bmask) { m = ((unsigned long)~0L); @@ -291,7 +190,8 @@ color_mask(GLcontext *ctx, if (gmask) m |= GET_GREENMASK(xmesa->xm_visual); if (bmask) m |= GET_BLUEMASK(xmesa->xm_visual); } - XMesaSetPlaneMask( xmesa->display, xmesa->xm_buffer->cleargc, m ); + XMesaSetPlaneMask( xmesa->display, xmbuf->cleargc, m ); + XMesaSetPlaneMask( xmesa->display, xmbuf->gc, m ); } } @@ -302,164 +202,79 @@ color_mask(GLcontext *ctx, /**********************************************************************/ +/** + * Clear the front or back color buffer, if it's implemented with a pixmap. + */ static void -clear_front_pixmap( GLcontext *ctx, GLboolean all, - GLint x, GLint y, GLint width, GLint height ) -{ - const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; - if (all) { - XMesaFillRectangle( xmesa->display, xmesa->xm_buffer->frontbuffer, - xmesa->xm_buffer->cleargc, - 0, 0, - xmesa->xm_buffer->width+1, - xmesa->xm_buffer->height+1 ); - } - else { - XMesaFillRectangle( xmesa->display, xmesa->xm_buffer->frontbuffer, - xmesa->xm_buffer->cleargc, - x, xmesa->xm_buffer->height - y - height, - width, height ); - } -} - - -static void -clear_back_pixmap( GLcontext *ctx, GLboolean all, - GLint x, GLint y, GLint width, GLint height ) +clear_pixmap(GLcontext *ctx, struct xmesa_renderbuffer *xrb, + GLint x, GLint y, GLint width, GLint height) { - const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; - if (all) { - XMesaFillRectangle( xmesa->display, xmesa->xm_buffer->backpixmap, - xmesa->xm_buffer->cleargc, - 0, 0, - xmesa->xm_buffer->width+1, - xmesa->xm_buffer->height+1 ); - } - else { - XMesaFillRectangle( xmesa->display, xmesa->xm_buffer->backpixmap, - xmesa->xm_buffer->cleargc, - x, xmesa->xm_buffer->height - y - height, - width, height ); - } + const XMesaContext xmesa = XMESA_CONTEXT(ctx); + XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer); + + assert(xmbuf); + assert(xrb->pixmap); + assert(xmesa); + assert(xmesa->display); + assert(xrb->pixmap); + assert(xmbuf->cleargc); + + XMesaFillRectangle( xmesa->display, xrb->pixmap, xmbuf->cleargc, + x, xrb->Base.Height - y - height, + width, height ); } static void -clear_8bit_ximage( GLcontext *ctx, GLboolean all, +clear_8bit_ximage( GLcontext *ctx, struct xmesa_renderbuffer *xrb, GLint x, GLint y, GLint width, GLint height ) { - const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; - if (all) { - size_t n = xmesa->xm_buffer->backimage->bytes_per_line - * xmesa->xm_buffer->backimage->height; - MEMSET( xmesa->xm_buffer->backimage->data, xmesa->clearpixel, n ); - } - else { - GLint i; - for (i=0;ixm_buffer, x, y+i ); - MEMSET( ptr, xmesa->clearpixel, width ); - } + const XMesaContext xmesa = XMESA_CONTEXT(ctx); + GLint i; + for (i = 0; i < height; i++) { + GLubyte *ptr = PIXEL_ADDR1(xrb, x, y + i); + MEMSET( ptr, xmesa->clearpixel, width ); } } static void -clear_HPCR_ximage( GLcontext *ctx, GLboolean all, +clear_HPCR_ximage( GLcontext *ctx, struct xmesa_renderbuffer *xrb, GLint x, GLint y, GLint width, GLint height ) { - const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; - if (all) { - GLint i, c16 = (xmesa->xm_buffer->backimage->bytes_per_line>>4)<<4; - GLubyte *ptr = (GLubyte *)xmesa->xm_buffer->backimage->data; - for (i=0; ixm_buffer->backimage->height; i++) { - GLint j; - GLubyte *sptr = xmesa->xm_visual->hpcr_clear_ximage_pattern[0]; - if (i&1) { - sptr += 16; - } - for (j=0; jxm_buffer->backimage->bytes_per_line; j++) { - *ptr = sptr[j&15]; - ptr++; - } + const XMesaContext xmesa = XMESA_CONTEXT(ctx); + GLint i; + for (i = y; i < y + height; i++) { + GLubyte *ptr = PIXEL_ADDR1( xrb, x, i ); + int j; + const GLubyte *sptr = xmesa->xm_visual->hpcr_clear_ximage_pattern[0]; + if (i & 1) { + sptr += 16; } - } - else { - GLint i; - for (i=y; ixm_buffer, x, i ); - int j; - GLubyte *sptr = xmesa->xm_visual->hpcr_clear_ximage_pattern[0]; - if (i&1) { - sptr += 16; - } - for (j=x; jDriverCtx; - register GLuint pixel = (GLuint) xmesa->clearpixel; + const XMesaContext xmesa = XMESA_CONTEXT(ctx); + GLuint pixel = (GLuint) xmesa->clearpixel; + GLint i, j; + if (xmesa->swapbytes) { pixel = ((pixel >> 8) & 0x00ff) | ((pixel << 8) & 0xff00); } - if (all) { - register GLuint n; - register GLuint *ptr4 = (GLuint *) xmesa->xm_buffer->backimage->data; - if ((pixel & 0xff) == ((pixel >> 8) & 0xff)) { - /* low and high bytes are equal so use memset() */ - n = xmesa->xm_buffer->backimage->bytes_per_line - * xmesa->xm_buffer->height; - MEMSET( ptr4, pixel & 0xff, n ); - } - else { - pixel = pixel | (pixel<<16); - n = xmesa->xm_buffer->backimage->bytes_per_line - * xmesa->xm_buffer->height / 4; - do { - *ptr4++ = pixel; - n--; - } while (n!=0); - - if ((xmesa->xm_buffer->backimage->bytes_per_line * - xmesa->xm_buffer->height) & 0x2) - *(GLushort *)ptr4 = pixel & 0xffff; - } - } - else { - register int i, j; - for (j=0;jxm_buffer, x, y+j ); - for (i=0;i */ static void -clear_24bit_ximage( GLcontext *ctx, GLboolean all, - GLint x, GLint y, GLint width, GLint height ) +clear_24bit_ximage(GLcontext *ctx, struct xmesa_renderbuffer *xrb, + GLint x, GLint y, GLint width, GLint height) { - const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const XMesaContext xmesa = XMESA_CONTEXT(ctx); const GLubyte r = xmesa->clearcolor[0]; const GLubyte g = xmesa->clearcolor[1]; const GLubyte b = xmesa->clearcolor[2]; - register GLuint clearPixel; - if (xmesa->swapbytes) { - clearPixel = (b << 16) | (g << 8) | r; - } - else { - clearPixel = (r << 16) | (g << 8) | b; - } - - if (all) { - if (r==g && g==b) { - /* same value for all three components (gray) */ - const GLint w3 = xmesa->xm_buffer->width * 3; - const GLint h = xmesa->xm_buffer->height; - GLint i; - for (i = 0; i < h; i++) { - bgr_t *ptr3 = PIXELADDR3(xmesa->xm_buffer, 0, i); - MEMSET(ptr3, r, w3); - } - } - else { - /* the usual case */ - const GLint w = xmesa->xm_buffer->width; - const GLint h = xmesa->xm_buffer->height; - GLint i, j; - for (i = 0; i < h; i++) { - bgr_t *ptr3 = PIXELADDR3(xmesa->xm_buffer, 0, i); - for (j = 0; j < w; j++) { - ptr3->r = r; - ptr3->g = g; - ptr3->b = b; - ptr3++; - } - } -#if 0 /* this code doesn't work for all window widths */ - register GLuint *ptr4 = (GLuint *) ptr3; - register GLuint px; - GLuint pixel4[3]; - register GLuint *p = pixel4; - pixel4[0] = clearPixel | (clearPixel << 24); - pixel4[1] = (clearPixel << 16) | (clearPixel >> 8); - pixel4[2] = (clearPixel << 8) | (clearPixel >> 16); - 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 == --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 + + if (r == g && g == b) { + /* same value for all three components (gray) */ + GLint j; + for (j = 0; j < height; j++) { + bgr_t *ptr3 = PIXEL_ADDR3(xrb, x, y + j); + MEMSET(ptr3, r, 3 * width); } } else { - /* only clear subrect of color buffer */ - if (r==g && g==b) { - /* same value for all three components (gray) */ - GLint j; - for (j=0;jxm_buffer, x, y+j ); - MEMSET(ptr3, r, 3 * width); + /* non-gray clear color */ + GLint i, j; + for (j = 0; j < height; j++) { + bgr_t *ptr3 = PIXEL_ADDR3(xrb, x, y + j); + for (i = 0; i < width; i++) { + ptr3->r = r; + ptr3->g = g; + ptr3->b = b; + ptr3++; } } - else { - /* non-gray clear color */ - GLint i, j; - for (j = 0; j < height; j++) { - bgr_t *ptr3 = PIXELADDR3( xmesa->xm_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;jxm_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 ) +clear_32bit_ximage(GLcontext *ctx, struct xmesa_renderbuffer *xrb, + GLint x, GLint y, GLint width, GLint height) { - const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const XMesaContext xmesa = XMESA_CONTEXT(ctx); register GLuint pixel = (GLuint) xmesa->clearpixel; + + if (!xrb->ximage) + return; + if (xmesa->swapbytes) { pixel = ((pixel >> 24) & 0x000000ff) | ((pixel >> 8) & 0x0000ff00) | ((pixel << 8) & 0x00ff0000) | ((pixel << 24) & 0xff000000); } - if (all) { - register GLint n = xmesa->xm_buffer->width * xmesa->xm_buffer->height; - register GLuint *ptr4 = (GLuint *) xmesa->xm_buffer->backimage->data; - if (pixel==0) { - MEMSET( ptr4, pixel, 4*n ); + + if (width == xrb->Base.Width && height == xrb->Base.Height) { + /* clearing whole buffer */ + const GLuint n = xrb->Base.Width * xrb->Base.Height; + GLuint *ptr4 = (GLuint *) xrb->ximage->data; + if (pixel == 0) { + /* common case */ + _mesa_memset(ptr4, pixel, 4 * n); } else { - do { - *ptr4++ = pixel; - n--; - } while (n!=0); + GLuint i; + for (i = 0; i < n; i++) + ptr4[i] = pixel; } } else { - register int i, j; - for (j=0;jxm_buffer, x, y+j ); - for (i=0;iDriverCtx; - XMesaImage *img = xmesa->xm_buffer->backimage; - if (all) { - register int i, j; - width = xmesa->xm_buffer->width; - height = xmesa->xm_buffer->height; - for (j=0;jclearpixel ); - } - } - } - else { - /* TODO: optimize this */ - register int i, j; - y = FLIP(xmesa->xm_buffer, y); - for (j=0;jclearpixel ); - } + const XMesaContext xmesa = XMESA_CONTEXT(ctx); + XMesaImage *img = xrb->ximage; + GLint i, j; + + /* TODO: optimize this */ + y = YFLIP(xrb, y); + for (j = 0; j < height; j++) { + for (i = 0; i < width; i++) { + XMesaPutPixel(img, x+i, y-j, xmesa->clearpixel); } } } @@ -744,101 +378,320 @@ clear_nbit_ximage( GLcontext *ctx, GLboolean all, static void -clear_buffers( GLcontext *ctx, GLbitfield mask, - GLboolean all, GLint x, GLint y, GLint width, GLint height ) +clear_buffers(GLcontext *ctx, GLbitfield buffers) { - 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_buffer->gl_buffer->UseSoftwareAlphaBuffers && - ctx->Color.ColorMask[ACOMP]) { - _mesa_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_buffer->front_clear_func); - (*xmesa->xm_buffer->front_clear_func)( ctx, all, x, y, width, height ); - mask &= ~DD_FRONT_LEFT_BIT; - } - if (mask & DD_BACK_LEFT_BIT) { - ASSERT(xmesa->xm_buffer->back_clear_func); - (*xmesa->xm_buffer->back_clear_func)( ctx, all, x, y, width, height ); - mask &= ~DD_BACK_LEFT_BIT; + if (ctx->DrawBuffer->Name == 0) { + /* this is a window system framebuffer */ + const GLuint *colorMask = (GLuint *) &ctx->Color.ColorMask; + XMesaBuffer b = XMESA_BUFFER(ctx->DrawBuffer); + const GLint x = ctx->DrawBuffer->_Xmin; + const GLint y = ctx->DrawBuffer->_Ymin; + const GLint width = ctx->DrawBuffer->_Xmax - x; + const GLint height = ctx->DrawBuffer->_Ymax - y; + + /* we can't handle color or index masking */ + if (*colorMask == 0xffffffff && ctx->Color.IndexMask == 0xffffffff) { + if (buffers & BUFFER_BIT_FRONT_LEFT) { + /* clear front color buffer */ + struct gl_renderbuffer *frontRb + = ctx->DrawBuffer->Attachment[BUFFER_FRONT_LEFT].Renderbuffer; + if (b->frontxrb == xmesa_renderbuffer(frontRb)) { + /* renderbuffer is not wrapped - great! */ + b->frontxrb->clearFunc(ctx, b->frontxrb, x, y, width, height); + buffers &= ~BUFFER_BIT_FRONT_LEFT; + } + else { + /* we can't directly clear an alpha-wrapped color buffer */ + } + } + if (buffers & BUFFER_BIT_BACK_LEFT) { + /* clear back color buffer */ + struct gl_renderbuffer *backRb + = ctx->DrawBuffer->Attachment[BUFFER_BACK_LEFT].Renderbuffer; + if (b->backxrb == xmesa_renderbuffer(backRb)) { + /* renderbuffer is not wrapped - great! */ + b->backxrb->clearFunc(ctx, b->backxrb, x, y, width, height); + buffers &= ~BUFFER_BIT_BACK_LEFT; + } + } } } - - if (mask) - _swrast_Clear( ctx, mask, all, x, y, width, height ); + if (buffers) + _swrast_Clear(ctx, buffers); } -static void -resize_buffers( GLcontext *ctx ) -{ - _swrast_alloc_buffers( ctx ); -} +#ifndef XFree86Server +/* XXX this was never tested in the Xserver environment */ -#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 ) +static void +xmesa_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_buffer->buffer; - XMesaGC gc = xmesa->xm_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) { + const SWcontext *swrast = SWRAST_CONTEXT( ctx ); + struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0][0]; + struct xmesa_renderbuffer *xrb = xmesa_renderbuffer(rb->Wrapped); + + if (swrast->NewState) + _swrast_validate_derived( ctx ); + + if (ctx->DrawBuffer->Name == 0 && + format == GL_BGRA && + type == GL_UNSIGNED_BYTE && + (swrast->_RasterMask & ~CLIP_BIT) == 0 && /* no blend, z-test, etc */ + ctx->_ImageTransferState == 0 && /* no color tables, scale/bias, etc */ + ctx->Pixel.ZoomX == 1.0 && /* no zooming */ + ctx->Pixel.ZoomY == 1.0 && + xrb->pixmap && + xrb->Base.AlphaBits == 0) + { + const XMesaContext xmesa = XMESA_CONTEXT(ctx); + XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer); + XMesaDisplay *dpy = xmesa->xm_visual->display; + const XMesaGC gc = xmbuf->gc; 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)) { + struct gl_pixelstore_attrib clippedUnpack = *unpack; + + ASSERT(xmesa->xm_visual->dithered_pf == PF_8R8G8B); + ASSERT(xmesa->xm_visual->undithered_pf == PF_8R8G8B); + ASSERT(dpy); + ASSERT(gc); + + if (unpack->BufferObj->Name) { + /* unpack from PBO */ + GLubyte *buf; + if (!_mesa_validate_pbo_access(2, unpack, width, height, 1, + format, type, pixels)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glDrawPixels(invalid PBO access)"); + return; + } + buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, + GL_PIXEL_UNPACK_BUFFER_EXT, + GL_READ_ONLY_ARB, + unpack->BufferObj); + if (!buf) { + /* buffer is already mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glDrawPixels(PBO is mapped)"); + return; + } + pixels = ADD_POINTERS(buf, pixels); + } + + if (_mesa_clip_drawpixels(ctx, &dstX, &dstY, &w, &h, &clippedUnpack)) { + /* This is a little tricky since all coordinates up to now have + * been in the OpenGL bottom-to-top orientation. X is top-to-bottom + * so we have to carefully compute the Y coordinates/addresses here. + */ + int srcX = clippedUnpack.SkipPixels; + int srcY = clippedUnpack.SkipRows; + int rowLength = clippedUnpack.RowLength; 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.data = (char *) pixels + + ((srcY + h - 1) * rowLength + srcX) * 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.bytes_per_line = -rowLength * 4; /* negative to flip image */ ximage.bits_per_pixel = 32; - ximage.red_mask = 0xff0000; - ximage.green_mask = 0x00ff00; - ximage.blue_mask = 0x0000ff; - dstY = FLIP(xmesa->xm_buffer,dstY) - height + 1; - XPutImage(dpy, buffer, gc, &ximage, srcX, srcY, dstX, dstY, w, h); - return GL_TRUE; + /* it seems we don't need to set the ximage.red/green/blue_mask fields */ + /* flip Y axis for dest position */ + dstY = YFLIP(xrb, dstY) - h + 1; + XPutImage(dpy, xrb->pixmap, gc, &ximage, 0, 0, dstX, dstY, w, h); + } + + if (unpack->BufferObj->Name) { + ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, + unpack->BufferObj); + } + } + else { + /* software fallback */ + _swrast_DrawPixels(ctx, x, y, width, height, + format, type, unpack, pixels); + } +} + + + +/** + * This function implements glDrawPixels() with an XPutImage call when + * drawing to the front buffer (X Window drawable). The image format + * must be GL_RGB and image type must be GL_UNSIGNED_SHORT_5_6_5 to + * match the PF_5R6G5B pixel format. + */ +static void +xmesa_DrawPixels_5R6G5B( GLcontext *ctx, + GLint x, GLint y, GLsizei width, GLsizei height, + GLenum format, GLenum type, + const struct gl_pixelstore_attrib *unpack, + const GLvoid *pixels ) +{ + struct xmesa_renderbuffer *xrb + = xmesa_renderbuffer(ctx->DrawBuffer->_ColorDrawBuffers[0][0]->Wrapped); + const XMesaContext xmesa = XMESA_CONTEXT(ctx); + const SWcontext *swrast = SWRAST_CONTEXT( ctx ); + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer); + const XMesaGC gc = xmbuf->gc; + + ASSERT(dpy); + ASSERT(gc); + ASSERT(xmesa->xm_visual->undithered_pf == PF_5R6G5B); + + if (swrast->NewState) + _swrast_validate_derived( ctx ); + + if (xrb->pixmap && + format == GL_RGB && + type == GL_UNSIGNED_SHORT_5_6_5 && + !ctx->Color.DitherFlag && /* no dithering */ + (swrast->_RasterMask & ~CLIP_BIT) == 0 && /* no blend, z-test, etc */ + ctx->_ImageTransferState == 0 && /* no color tables, scale/bias, etc */ + ctx->Pixel.ZoomX == 1.0 && /* no zooming */ + ctx->Pixel.ZoomY == 1.0) { + int dstX = x; + int dstY = y; + int w = width; + int h = height; + struct gl_pixelstore_attrib clippedUnpack = *unpack; + + if (unpack->BufferObj->Name) { + /* unpack from PBO */ + GLubyte *buf; + if (!_mesa_validate_pbo_access(2, unpack, width, height, 1, + format, type, pixels)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glDrawPixels(invalid PBO access)"); + return; + } + buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, + GL_PIXEL_UNPACK_BUFFER_EXT, + GL_READ_ONLY_ARB, + unpack->BufferObj); + if (!buf) { + /* buffer is already mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glDrawPixels(PBO is mapped)"); + return; + } + pixels = ADD_POINTERS(buf, pixels); } + + if (_mesa_clip_drawpixels(ctx, &dstX, &dstY, &w, &h, &clippedUnpack)) { + /* This is a little tricky since all coordinates up to now have + * been in the OpenGL bottom-to-top orientation. X is top-to-bottom + * so we have to carefully compute the Y coordinates/addresses here. + */ + int srcX = clippedUnpack.SkipPixels; + int srcY = clippedUnpack.SkipRows; + int rowLength = clippedUnpack.RowLength; + XMesaImage ximage; + MEMSET(&ximage, 0, sizeof(XMesaImage)); + ximage.width = width; + ximage.height = height; + ximage.format = ZPixmap; + ximage.data = (char *) pixels + + ((srcY + h - 1) * rowLength + srcX) * 2; + ximage.byte_order = LSBFirst; + ximage.bitmap_unit = 16; + ximage.bitmap_bit_order = LSBFirst; + ximage.bitmap_pad = 16; + ximage.depth = 16; + ximage.bytes_per_line = -rowLength * 2; /* negative to flip image */ + ximage.bits_per_pixel = 16; + /* it seems we don't need to set the ximage.red/green/blue_mask fields */ + /* flip Y axis for dest position */ + dstY = YFLIP(xrb, dstY) - h + 1; + XPutImage(dpy, xrb->pixmap, gc, &ximage, 0, 0, dstX, dstY, w, h); + } + + if (unpack->BufferObj->Name) { + ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, + unpack->BufferObj); + } + } + else { + /* software fallback */ + _swrast_DrawPixels(ctx, x, y, width, height, + format, type, unpack, pixels); } - return GL_FALSE; } -#endif +/** + * Implement glCopyPixels for the front color buffer (or back buffer Pixmap) + * for the color buffer. Don't support zooming, pixel transfer, etc. + * We do support copying from one window to another, ala glXMakeCurrentRead. + */ +static void +xmesa_CopyPixels( GLcontext *ctx, + GLint srcx, GLint srcy, GLsizei width, GLsizei height, + GLint destx, GLint desty, GLenum type ) +{ + const XMesaContext xmesa = XMESA_CONTEXT(ctx); + const SWcontext *swrast = SWRAST_CONTEXT( ctx ); + XMesaDisplay *dpy = xmesa->xm_visual->display; + const XMesaGC gc = ((XMesaBuffer) ctx->DrawBuffer)->gc; + struct xmesa_renderbuffer *srcXrb + = xmesa_renderbuffer(ctx->ReadBuffer->_ColorReadBuffer->Wrapped); + struct xmesa_renderbuffer *dstXrb + = xmesa_renderbuffer(ctx->DrawBuffer->_ColorDrawBuffers[0][0]->Wrapped); + + ASSERT(dpy); + ASSERT(gc); + + if (swrast->NewState) + _swrast_validate_derived( ctx ); + + if (ctx->Color.DrawBuffer[0] == GL_FRONT && + ctx->Pixel.ReadBuffer == GL_FRONT && + srcXrb->pixmap && + dstXrb->pixmap && + type == GL_COLOR && + (swrast->_RasterMask & ~CLIP_BIT) == 0 && /* no blend, z-test, etc */ + ctx->_ImageTransferState == 0 && /* no color tables, scale/bias, etc */ + ctx->Pixel.ZoomX == 1.0 && /* no zooming */ + ctx->Pixel.ZoomY == 1.0) { + /* Note: we don't do any special clipping work here. We could, + * but X will do it for us. + */ + srcy = YFLIP(srcXrb, srcy) - height + 1; + desty = YFLIP(dstXrb, desty) - height + 1; + XCopyArea(dpy, srcXrb->pixmap, dstXrb->pixmap, gc, + srcx, srcy, width, height, destx, desty); + } + else { + _swrast_CopyPixels(ctx, srcx, srcy, width, height, destx, desty, type ); + } +} +#endif /* XFree86Server */ + + + +/* + * Every driver should implement a GetString function in order to + * return a meaningful GL_RENDERER string. + */ static const GLubyte * get_string( GLcontext *ctx, GLenum name ) { @@ -852,7 +705,7 @@ get_string( GLcontext *ctx, GLenum name ) #endif case GL_VENDOR: #ifdef XFree86Server - return (const GLubyte *) "VA Linux Systems, Inc."; + return (const GLubyte *) "Mesa project: www.mesa3d.org"; #else return NULL; #endif @@ -862,10 +715,14 @@ get_string( GLcontext *ctx, GLenum name ) } +/* + * We implement the glEnable function only because we care about + * dither enable/disable. + */ static void enable( GLcontext *ctx, GLenum pname, GLboolean state ) { - const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const XMesaContext xmesa = XMESA_CONTEXT(ctx); switch (pname) { case GL_DITHER: @@ -880,129 +737,398 @@ enable( GLcontext *ctx, GLenum pname, GLboolean state ) } -void xmesa_update_state( GLcontext *ctx, GLuint new_state ) +static void +clear_color_HPCR_ximage( GLcontext *ctx, const GLfloat color[4] ) +{ + int i; + const XMesaContext xmesa = XMESA_CONTEXT(ctx); + + CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[0], color[0]); + CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[1], color[1]); + CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[2], color[2]); + CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[3], color[3]); + + if (color[0] == 0.0 && color[1] == 0.0 && color[2] == 0.0) { + /* black is black */ + MEMSET( xmesa->xm_visual->hpcr_clear_ximage_pattern, 0x0 , + sizeof(xmesa->xm_visual->hpcr_clear_ximage_pattern)); + } + else { + /* build clear pattern */ + for (i=0; i<16; i++) { + xmesa->xm_visual->hpcr_clear_ximage_pattern[0][i] = + DITHER_HPCR(i, 0, + xmesa->clearcolor[0], + xmesa->clearcolor[1], + xmesa->clearcolor[2]); + xmesa->xm_visual->hpcr_clear_ximage_pattern[1][i] = + DITHER_HPCR(i, 1, + xmesa->clearcolor[0], + xmesa->clearcolor[1], + xmesa->clearcolor[2]); + } + } +} + + +static void +clear_color_HPCR_pixmap( GLcontext *ctx, const GLfloat color[4] ) +{ + int i; + const XMesaContext xmesa = XMESA_CONTEXT(ctx); + + CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[0], color[0]); + CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[1], color[1]); + CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[2], color[2]); + CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[3], color[3]); + + if (color[0] == 0.0 && color[1] == 0.0 && color[2] == 0.0) { + /* black is black */ + for (i=0; i<16; i++) { + XMesaPutPixel(xmesa->xm_visual->hpcr_clear_ximage, i, 0, 0); + XMesaPutPixel(xmesa->xm_visual->hpcr_clear_ximage, i, 1, 0); + } + } + else { + for (i=0; i<16; i++) { + XMesaPutPixel(xmesa->xm_visual->hpcr_clear_ximage, i, 0, + DITHER_HPCR(i, 0, + xmesa->clearcolor[0], + xmesa->clearcolor[1], + xmesa->clearcolor[2])); + XMesaPutPixel(xmesa->xm_visual->hpcr_clear_ximage, i, 1, + DITHER_HPCR(i, 1, + xmesa->clearcolor[0], + xmesa->clearcolor[1], + xmesa->clearcolor[2])); + } + } + /* change tile pixmap content */ + XMesaPutImage(xmesa->display, + (XMesaDrawable)xmesa->xm_visual->hpcr_clear_pixmap, + XMESA_BUFFER(ctx->DrawBuffer)->cleargc, + xmesa->xm_visual->hpcr_clear_ximage, 0, 0, 0, 0, 16, 2); +} + + +/** + * Called when the driver should update its state, based on the new_state + * flags. + */ +void +xmesa_update_state( GLcontext *ctx, GLbitfield new_state ) { - const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + 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 ); - _ac_InvalidateState( ctx, new_state ); _tnl_InvalidateState( ctx, new_state ); + _vbo_InvalidateState( ctx, new_state ); _swsetup_InvalidateState( ctx, new_state ); + if (ctx->DrawBuffer->Name != 0) + return; - /* setup pointers to front and back buffer clear functions */ - xmesa->xm_buffer->front_clear_func = clear_front_pixmap; - if (xmesa->xm_buffer->backpixmap != XIMAGE) { - xmesa->xm_buffer->back_clear_func = clear_back_pixmap; - } - else if (sizeof(GLushort)!=2 || sizeof(GLuint)!=4) { - xmesa->xm_buffer->back_clear_func = clear_nbit_ximage; + /* + * GL_DITHER, GL_READ/DRAW_BUFFER, buffer binding state, etc. effect + * renderbuffer span/clear funcs. + */ + if (new_state & (_NEW_COLOR | _NEW_PIXEL | _NEW_BUFFERS)) { + XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer); + struct xmesa_renderbuffer *front_xrb, *back_xrb; + + front_xrb = xmbuf->frontxrb; + if (front_xrb) { + xmesa_set_renderbuffer_funcs(front_xrb, xmesa->pixelformat, + xmesa->xm_visual->BitsPerPixel); + front_xrb->clearFunc = clear_pixmap; + } + + back_xrb = xmbuf->backxrb; + if (back_xrb) { + xmesa_set_renderbuffer_funcs(back_xrb, xmesa->pixelformat, + xmesa->xm_visual->BitsPerPixel); + if (xmbuf->backxrb->pixmap) { + back_xrb->clearFunc = clear_pixmap; + } + else { + switch (xmesa->xm_visual->BitsPerPixel) { + case 8: + if (xmesa->xm_visual->hpcr_clear_flag) { + back_xrb->clearFunc = clear_HPCR_ximage; + } + else { + back_xrb->clearFunc = clear_8bit_ximage; + } + break; + case 16: + back_xrb->clearFunc = clear_16bit_ximage; + break; + case 24: + back_xrb->clearFunc = clear_24bit_ximage; + break; + case 32: + back_xrb->clearFunc = clear_32bit_ximage; + break; + default: + back_xrb->clearFunc = clear_nbit_ximage; + break; + } + } + } } - else switch (xmesa->xm_visual->BitsPerPixel) { - case 8: - if (xmesa->xm_visual->hpcr_clear_flag) { - xmesa->xm_buffer->back_clear_func = clear_HPCR_ximage; + + if (xmesa->xm_visual->hpcr_clear_flag) { + /* this depends on whether we're drawing to the front or back buffer */ + /* XXX FIX THIS! */ +#if 0 + if (pixmap) { + ctx->Driver.ClearColor = clear_color_HPCR_pixmap; } else { - xmesa->xm_buffer->back_clear_func = clear_8bit_ximage; + ctx->Driver.ClearColor = clear_color_HPCR_ximage; } - break; - case 16: - xmesa->xm_buffer->back_clear_func = clear_16bit_ximage; - break; - case 24: - xmesa->xm_buffer->back_clear_func = clear_24bit_ximage; - break; - case 32: - xmesa->xm_buffer->back_clear_func = clear_32bit_ximage; - break; - default: - xmesa->xm_buffer->back_clear_func = clear_nbit_ximage; - break; - } - - xmesa_update_span_funcs(ctx); +#else + (void) clear_color_HPCR_pixmap; + (void) clear_color_HPCR_ximage; +#endif + } } -/* Setup pointers and other driver state that is constant for the life - * of a context. +/** + * Called via ctx->Driver.TestProxyTeximage(). Normally, we'd just use + * the _mesa_test_proxy_teximage() fallback function, but we're going to + * special-case the 3D texture case to allow textures up to 512x512x32 + * texels. */ -void xmesa_init_pointers( GLcontext *ctx ) +static GLboolean +test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level, + GLint internalFormat, GLenum format, GLenum type, + GLint width, GLint height, GLint depth, GLint border) { - TNLcontext *tnl; - - 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.ResizeBuffersMESA = resize_buffers; - ctx->Driver.CopyPixels = _swrast_CopyPixels; - ctx->Driver.DrawPixels = _swrast_DrawPixels; - ctx->Driver.ReadPixels = _swrast_ReadPixels; - - /* 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; - - - /* 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; + if (target == GL_PROXY_TEXTURE_3D) { + /* special case for 3D textures */ + if (width * height * depth > 512 * 512 * 64 || + width < 2 * border || + (!ctx->Extensions.ARB_texture_non_power_of_two && + _mesa_bitcount(width - 2 * border) != 1) || + height < 2 * border || + (!ctx->Extensions.ARB_texture_non_power_of_two && + _mesa_bitcount(height - 2 * border) != 1) || + depth < 2 * border || + (!ctx->Extensions.ARB_texture_non_power_of_two && + _mesa_bitcount(depth - 2 * border) != 1)) { + /* Bad size, or too many texels */ + return GL_FALSE; + } + return GL_TRUE; + } + else { + /* use the fallback routine for 1D, 2D, cube and rect targets */ + return _mesa_test_proxy_teximage(ctx, target, level, internalFormat, + format, type, width, height, depth, + border); + } +} - /* Statechange callbacks: - */ - ctx->Driver.SetDrawBuffer = set_draw_buffer; - ctx->Driver.ClearIndex = clear_index; - ctx->Driver.ClearColor = clear_color; - ctx->Driver.IndexMask = index_mask; - ctx->Driver.ColorMask = color_mask; - ctx->Driver.Enable = enable; +/** + * In SW, we don't really compress GL_COMPRESSED_RGB[A] textures! + */ +static const struct gl_texture_format * +choose_tex_format( GLcontext *ctx, GLint internalFormat, + GLenum format, GLenum type ) +{ + switch (internalFormat) { + case GL_COMPRESSED_RGB_ARB: + return &_mesa_texformat_rgb; + case GL_COMPRESSED_RGBA_ARB: + return &_mesa_texformat_rgba; + default: + return _mesa_choose_tex_format(ctx, internalFormat, format, type); + } +} - /* Initialize the TNL driver interface: - */ - tnl = TNL_CONTEXT(ctx); - tnl->Driver.RenderStart = _swsetup_RenderStart; - tnl->Driver.RenderFinish = _swsetup_RenderFinish; - tnl->Driver.BuildProjectedVertices = _swsetup_BuildProjectedVertices; - tnl->Driver.RenderPrimitive = _swsetup_RenderPrimitive; - tnl->Driver.PointsFunc = _swsetup_Points; - tnl->Driver.LineFunc = _swsetup_Line; - tnl->Driver.TriangleFunc = _swsetup_Triangle; - tnl->Driver.QuadFunc = _swsetup_Quad; - tnl->Driver.ResetLineStipple = _swrast_ResetLineStipple; - tnl->Driver.RenderInterp = _swsetup_RenderInterp; - tnl->Driver.RenderCopyPV = _swsetup_RenderCopyPV; - tnl->Driver.RenderClippedLine = _swsetup_RenderClippedLine; - tnl->Driver.RenderClippedPolygon = _swsetup_RenderClippedPolygon; - - (void) DitherValues; /* silenced unused var warning */ +/** + * Called by glViewport. + * This is a good time for us to poll the current X window size and adjust + * our renderbuffers to match the current window size. + * Remember, we have no opportunity to respond to conventional + * X Resize/StructureNotify events since the X driver has no event loop. + * Thus, we poll. + * Note that this trick isn't fool-proof. If the application never calls + * glViewport, our notion of the current window size may be incorrect. + * That problem led to the GLX_MESA_resize_buffers extension. + */ +static void +xmesa_viewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h) +{ + XMesaContext xmctx = XMESA_CONTEXT(ctx); + XMesaBuffer xmdrawbuf = XMESA_BUFFER(ctx->WinSysDrawBuffer); + XMesaBuffer xmreadbuf = XMESA_BUFFER(ctx->WinSysReadBuffer); + xmesa_check_and_update_buffer_size(xmctx, xmdrawbuf); + xmesa_check_and_update_buffer_size(xmctx, xmreadbuf); + (void) x; + (void) y; + (void) w; + (void) h; +} + + +#if ENABLE_EXT_timer_query + +/* + * The GL_EXT_timer_query extension is not enabled for the XServer + * indirect renderer. Not sure about how/if wrapping of gettimeofday() + * is done, etc. + */ + +struct xmesa_query_object +{ + struct gl_query_object Base; + struct timeval StartTime; +}; + + +static struct gl_query_object * +xmesa_new_query_object(GLcontext *ctx, GLuint id) +{ + struct xmesa_query_object *q = CALLOC_STRUCT(xmesa_query_object); + if (q) { + q->Base.Id = id; + q->Base.Ready = GL_TRUE; + } + return &q->Base; +} + + +static void +xmesa_begin_query(GLcontext *ctx, GLenum target, struct gl_query_object *q) +{ + if (target == GL_TIME_ELAPSED_EXT) { + struct xmesa_query_object *xq = (struct xmesa_query_object *) q; + (void) gettimeofday(&xq->StartTime, NULL); + } +} + + +/** + * Return the difference between the two given times in microseconds. + */ +#ifdef __VMS +#define suseconds_t unsigned int +#endif +static GLuint64EXT +time_diff(const struct timeval *t0, const struct timeval *t1) +{ + GLuint64EXT seconds0 = t0->tv_sec & 0xff; /* 0 .. 255 seconds */ + GLuint64EXT seconds1 = t1->tv_sec & 0xff; /* 0 .. 255 seconds */ + GLuint64EXT nanosec0 = (seconds0 * 1000000 + t0->tv_usec) * 1000; + GLuint64EXT nanosec1 = (seconds1 * 1000000 + t1->tv_usec) * 1000; + return nanosec1 - nanosec0; +} + + +static void +xmesa_end_query(GLcontext *ctx, GLenum target, struct gl_query_object *q) +{ + if (target == GL_TIME_ELAPSED_EXT) { + struct xmesa_query_object *xq = (struct xmesa_query_object *) q; + struct timeval endTime; + (void) gettimeofday(&endTime, NULL); + /* result is in nanoseconds! */ + q->Result = time_diff(&xq->StartTime, &endTime); + } + q->Ready = GL_TRUE; +} + +#endif /* ENABLE_timer_query */ + + +/** + * Initialize the device driver function table with the functions + * we implement in this driver. + */ +void +xmesa_init_driver_functions( XMesaVisual xmvisual, + struct dd_function_table *driver ) +{ + driver->GetString = get_string; + driver->UpdateState = xmesa_update_state; + driver->GetBufferSize = NULL; /* OBSOLETE */ + driver->Flush = finish_or_flush; + driver->Finish = finish_or_flush; + driver->ClearIndex = clear_index; + driver->ClearColor = clear_color; + driver->IndexMask = index_mask; + driver->ColorMask = color_mask; + driver->Enable = enable; + driver->Clear = clear_buffers; + driver->Viewport = xmesa_viewport; +#ifndef XFree86Server + driver->CopyPixels = xmesa_CopyPixels; + if (xmvisual->undithered_pf == PF_8R8G8B && + xmvisual->dithered_pf == PF_8R8G8B) { + driver->DrawPixels = xmesa_DrawPixels_8R8G8B; + } + else if (xmvisual->undithered_pf == PF_5R6G5B) { + driver->DrawPixels = xmesa_DrawPixels_5R6G5B; + } +#endif + driver->TestProxyTexImage = test_proxy_teximage; +#if ENABLE_EXT_texure_compression_s3tc + driver->ChooseTextureFormat = choose_tex_format; +#else + (void) choose_tex_format; +#endif + +#if ENABLE_EXT_timer_query + driver->NewQueryObject = xmesa_new_query_object; + driver->BeginQuery = xmesa_begin_query; + driver->EndQuery = xmesa_end_query; +#endif +} + + +#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. + * Called during context creation only. + */ +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; + + /* XXX these lines have no net effect. Remove??? */ + swrast->InvalidatePointMask |= XMESA_NEW_POINT; + swrast->InvalidateLineMask |= XMESA_NEW_LINE; + swrast->InvalidateTriangleMask |= XMESA_NEW_TRIANGLE; }