+++ /dev/null
-/*
- * Mesa 3-D graphics library
- * Version: 6.5.2
- *
- * 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"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-/**
- * \file xm_buffer.h
- * Framebuffer and renderbuffer-related functions.
- */
-
-
-#include "GL/xmesa.h"
-#include "glxheader.h"
-#include "xmesaP.h"
-#include "main/imports.h"
-#include "main/framebuffer.h"
-#include "main/renderbuffer.h"
-#include "pipe/p_state.h"
-#include "pipe/p_defines.h"
-#include "pipe/p_winsys.h"
-#include "state_tracker/st_context.h"
-
-
-static volatile int mesaXErrorFlag = 0;
-
-/**
- * Catches potential Xlib errors.
- */
-static int
-mesaHandleXError(XMesaDisplay *dpy, XErrorEvent *event)
-{
- (void) dpy;
- (void) event;
- mesaXErrorFlag = 1;
- return 0;
-}
-
-/**
- * Allocate a shared memory XImage back buffer for the given XMesaBuffer.
- * Return: GL_TRUE if success, GL_FALSE if error
- */
-static GLboolean
-alloc_back_shm_ximage(XMesaBuffer b, GLuint width, GLuint height)
-{
- /*
- * We have to do a _lot_ of error checking here to be sure we can
- * really use the XSHM extension. It seems different servers trigger
- * errors at different points if the extension won't work. Therefore
- * we have to be very careful...
- */
- GC gc;
- int (*old_handler)(XMesaDisplay *, XErrorEvent *);
-
- if (width == 0 || height == 0) {
- /* this will be true the first time we're called on 'b' */
- return GL_FALSE;
- }
-
- b->backxrb->ximage = XShmCreateImage(b->xm_visual->display,
- b->xm_visual->visinfo->visual,
- b->xm_visual->visinfo->depth,
- ZPixmap, NULL, &b->shminfo,
- width, height);
- if (b->backxrb->ximage == NULL) {
- _mesa_warning(NULL, "alloc_back_buffer: Shared memory error (XShmCreateImage), disabling.\n");
- b->shm = 0;
- return GL_FALSE;
- }
-
- b->shminfo.shmid = shmget(IPC_PRIVATE, b->backxrb->ximage->bytes_per_line
- * b->backxrb->ximage->height, IPC_CREAT|0777);
- if (b->shminfo.shmid < 0) {
- _mesa_warning(NULL, "shmget failed while allocating back buffer.\n");
- XDestroyImage(b->backxrb->ximage);
- b->backxrb->ximage = NULL;
- _mesa_warning(NULL, "alloc_back_buffer: Shared memory error (shmget), disabling.\n");
- b->shm = 0;
- return GL_FALSE;
- }
-
- b->shminfo.shmaddr = b->backxrb->ximage->data
- = (char*)shmat(b->shminfo.shmid, 0, 0);
- if (b->shminfo.shmaddr == (char *) -1) {
- _mesa_warning(NULL, "shmat() failed while allocating back buffer.\n");
- XDestroyImage(b->backxrb->ximage);
- shmctl(b->shminfo.shmid, IPC_RMID, 0);
- b->backxrb->ximage = NULL;
- _mesa_warning(NULL, "alloc_back_buffer: Shared memory error (shmat), disabling.\n");
- b->shm = 0;
- return GL_FALSE;
- }
-
- b->shminfo.readOnly = False;
- mesaXErrorFlag = 0;
- old_handler = XSetErrorHandler(mesaHandleXError);
- /* This may trigger the X protocol error we're ready to catch: */
- XShmAttach(b->xm_visual->display, &b->shminfo);
- XSync(b->xm_visual->display, False);
-
- if (mesaXErrorFlag) {
- /* we are on a remote display, this error is normal, don't print it */
- XFlush(b->xm_visual->display);
- mesaXErrorFlag = 0;
- XDestroyImage(b->backxrb->ximage);
- shmdt(b->shminfo.shmaddr);
- shmctl(b->shminfo.shmid, IPC_RMID, 0);
- b->backxrb->ximage = NULL;
- b->shm = 0;
- (void) XSetErrorHandler(old_handler);
- return GL_FALSE;
- }
-
- shmctl(b->shminfo.shmid, IPC_RMID, 0); /* nobody else needs it */
-
- /* Finally, try an XShmPutImage to be really sure the extension works */
- gc = XCreateGC(b->xm_visual->display, b->frontxrb->drawable, 0, NULL);
- XShmPutImage(b->xm_visual->display, b->frontxrb->drawable, gc,
- b->backxrb->ximage, 0, 0, 0, 0, 1, 1 /*one pixel*/, False);
- XSync(b->xm_visual->display, False);
- XFreeGC(b->xm_visual->display, gc);
- (void) XSetErrorHandler(old_handler);
- if (mesaXErrorFlag) {
- XFlush(b->xm_visual->display);
- mesaXErrorFlag = 0;
- XDestroyImage(b->backxrb->ximage);
- shmdt(b->shminfo.shmaddr);
- shmctl(b->shminfo.shmid, IPC_RMID, 0);
- b->backxrb->ximage = NULL;
- b->shm = 0;
- return GL_FALSE;
- }
-
- return GL_TRUE;
-}
-#else
-static GLboolean
-alloc_back_shm_ximage(XMesaBuffer b, GLuint width, GLuint height)
-{
- /* Can't compile XSHM support */
- return GL_FALSE;
-}
-#endif
-
-
-/**
- * \return LSBFirst or MSBFirst
- */
-static int host_byte_order( void )
-{
- int i = 1;
- char *cptr = (char *) &i;
- return (*cptr==1) ? LSBFirst : MSBFirst;
-}
-
-
-/**
- * Setup an off-screen pixmap or Ximage to use as the back buffer.
- * Input: b - the X/Mesa buffer
- */
-static void
-alloc_back_buffer(XMesaBuffer b, GLuint width, GLuint height)
-{
- if (b->db_mode == BACK_XIMAGE) {
- /* Deallocate the old backxrb->ximage, if any */
- if (b->backxrb->ximage) {
-#if defined(USE_XSHM) && !defined(XFree86Server)
- if (b->shm) {
- XShmDetach(b->xm_visual->display, &b->shminfo);
- XDestroyImage(b->backxrb->ximage);
- shmdt(b->shminfo.shmaddr);
- }
- else
-#endif
- XMesaDestroyImage(b->backxrb->ximage);
- b->backxrb->ximage = NULL;
- }
-
- if (width == 0 || height == 0)
- return;
-
- /* Allocate new back buffer */
- if (b->shm == 0 || !alloc_back_shm_ximage(b, width, height)) {
- /* Allocate a regular XImage for the back buffer. */
-#ifdef XFree86Server
- b->backxrb->ximage = XMesaCreateImage(b->xm_visual->BitsPerPixel,
- width, height, NULL);
-#else
- b->backxrb->ximage = XCreateImage(b->xm_visual->display,
- b->xm_visual->visinfo->visual,
- GET_VISUAL_DEPTH(b->xm_visual),
- ZPixmap, 0, /* format, offset */
- NULL,
- width, height,
- 8, 0); /* pad, bytes_per_line */
-#endif
- if (!b->backxrb->ximage) {
- _mesa_warning(NULL, "alloc_back_buffer: XCreateImage failed.\n");
- return;
- }
- b->backxrb->ximage->data = (char *) MALLOC(b->backxrb->ximage->height
- * b->backxrb->ximage->bytes_per_line);
- if (!b->backxrb->ximage->data) {
- _mesa_warning(NULL, "alloc_back_buffer: MALLOC failed.\n");
- XMesaDestroyImage(b->backxrb->ximage);
- b->backxrb->ximage = NULL;
- }
- }
- b->backxrb->pixmap = None;
- }
- else if (b->db_mode == BACK_PIXMAP) {
- /* Free the old back pixmap */
- if (b->backxrb->pixmap) {
- XMesaFreePixmap(b->xm_visual->display, b->backxrb->pixmap);
- b->backxrb->pixmap = 0;
- }
-
- if (width > 0 && height > 0) {
- /* Allocate new back pixmap */
- b->backxrb->pixmap = XMesaCreatePixmap(b->xm_visual->display,
- b->frontxrb->drawable,
- width, height,
- GET_VISUAL_DEPTH(b->xm_visual));
- }
-
- b->backxrb->ximage = NULL;
- }
-}
-
-
-static void
-xmesa_delete_renderbuffer(struct gl_renderbuffer *rb)
-{
- struct xmesa_renderbuffer *xrb = xmesa_renderbuffer(rb);
- if (xrb->St.surface) {
- struct pipe_winsys *ws = xrb->St.surface->winsys;
- ws->surface_release(ws, &xrb->St.surface);
- }
-
- /* XXX Note: the ximage or Pixmap attached to this renderbuffer
- * should probably get freed here, but that's currently done in
- * XMesaDestroyBuffer().
- */
- _mesa_free(rb);
-}
-
-
-static void
-finish_surface_init(GLcontext *ctx, struct xmesa_renderbuffer *xrb)
-{
- struct pipe_context *pipe = ctx->st->pipe;
- if (!xrb->St.surface->buffer) {
- xrb->St.surface->buffer = pipe->winsys->buffer_create(pipe->winsys, 0x0);
- }
-}
-
-
-/**
- * Reallocate renderbuffer storage for front color buffer.
- * Called via gl_renderbuffer::AllocStorage()
- */
-static GLboolean
-xmesa_alloc_front_storage(GLcontext *ctx, struct gl_renderbuffer *rb,
- GLenum internalFormat, GLuint width, GLuint height)
-{
- const XMesaContext xmesa = XMESA_CONTEXT(ctx);
- struct xmesa_renderbuffer *xrb = xmesa_renderbuffer(rb);
- struct xmesa_surface *xms = xmesa_surface(xrb->St.surface);
-
- /* just clear these to be sure we don't accidentally use them */
- xrb->origin1 = NULL;
- xrb->origin2 = NULL;
- xrb->origin3 = NULL;
- xrb->origin4 = NULL;
-
- /* for the FLIP macro: */
- xrb->bottom = height - 1;
-
- rb->Width = width;
- rb->Height = height;
- rb->InternalFormat = internalFormat;
-
- if (!xrb->St.surface || !xrb->St.surface->buffer)
- finish_surface_init(ctx, xrb);
-
- /* surface info */
- xms->surface.width = width;
- xms->surface.height = height;
- xms->display = xmesa->display;
- xms->drawable = xrb->drawable;
- xms->gc = xrb->Parent->cleargc;
- xms->ximage = NULL;
-
- return GL_TRUE;
-}
-
-
-/**
- * Reallocate renderbuffer storage for back color buffer.
- * Called via gl_renderbuffer::AllocStorage()
- */
-static GLboolean
-xmesa_alloc_back_storage(GLcontext *ctx, struct gl_renderbuffer *rb,
- GLenum internalFormat, GLuint width, GLuint height)
-{
- const XMesaContext xmesa = XMESA_CONTEXT(ctx);
- struct xmesa_renderbuffer *xrb = xmesa_renderbuffer(rb);
- struct xmesa_surface *xms = xmesa_surface(xrb->St.surface);
-
- /* reallocate the back buffer XImage or Pixmap */
- assert(xrb->Parent);
- alloc_back_buffer(xrb->Parent, width, height);
-
- /* same as front buffer */
- /* XXX why is this here? */
- (void) xmesa_alloc_front_storage(ctx, rb, internalFormat, width, height);
-
- /* plus... */
- if (xrb->ximage) {
- /* Needed by PIXELADDR1 macro */
- xrb->width1 = xrb->ximage->bytes_per_line;
- xrb->origin1 = (GLubyte *) xrb->ximage->data + xrb->width1 * (height - 1);
-
- /* Needed by PIXELADDR2 macro */
- xrb->width2 = xrb->ximage->bytes_per_line / 2;
- xrb->origin2 = (GLushort *) xrb->ximage->data + xrb->width2 * (height - 1);
-
- /* Needed by PIXELADDR3 macro */
- xrb->width3 = xrb->ximage->bytes_per_line;
- xrb->origin3 = (GLubyte *) xrb->ximage->data + xrb->width3 * (height - 1);
-
- /* Needed by PIXELADDR4 macro */
- xrb->width4 = xrb->ximage->width;
- xrb->origin4 = (GLuint *) xrb->ximage->data + xrb->width4 * (height - 1);
- }
- else {
- /* out of memory or buffer size is 0 x 0 */
- xrb->width1 = xrb->width2 = xrb->width3 = xrb->width4 = 0;
- xrb->origin1 = NULL;
- xrb->origin2 = NULL;
- xrb->origin3 = NULL;
- xrb->origin4 = NULL;
- }
-
- if (!xrb->St.surface || !xrb->St.surface->buffer)
- finish_surface_init(ctx, xrb);
-
- xrb->St.surface->width = width;
- xrb->St.surface->height = height;
-
- /* surface info */
- xms->surface.width = width;
- xms->surface.height = height;
- xms->display = xmesa->display;
- xms->drawable = xrb->drawable;
- xms->gc = xrb->Parent->cleargc;
- xms->ximage = xrb->ximage;
-
- return GL_TRUE;
-}
-
-
-/**
- * Called to create the front/back color renderbuffers, not user-created
- * renderbuffers.
- */
-struct xmesa_renderbuffer *
-xmesa_create_renderbuffer(struct pipe_winsys *winsys,
- GLuint name, XMesaVisual xmvis,
- GLboolean backBuffer)
-{
- const GLvisual *visual = &xmvis->mesa_visual;
- int byteOrder = ImageByteOrder(xmvis->display); /* LSBFirst or MSBFirst */
- struct xmesa_renderbuffer *xrb = CALLOC_STRUCT(xmesa_renderbuffer);
- if (xrb) {
- GLuint name = 0;
- GLuint pipeFormat = 0;
- struct xmesa_surface *xms;
-
- _mesa_init_renderbuffer(&xrb->St.Base, name);
-
- xrb->St.Base.Delete = xmesa_delete_renderbuffer;
- if (backBuffer)
- xrb->St.Base.AllocStorage = xmesa_alloc_back_storage;
- else
- xrb->St.Base.AllocStorage = xmesa_alloc_front_storage;
-
- if (visual->rgbMode) {
- xrb->St.Base.InternalFormat = GL_RGBA;
- xrb->St.Base._BaseFormat = GL_RGBA;
- xrb->St.Base.DataType = GL_UNSIGNED_BYTE;
- xrb->St.Base.RedBits = visual->redBits;
- xrb->St.Base.GreenBits = visual->greenBits;
- xrb->St.Base.BlueBits = visual->blueBits;
- xrb->St.Base.AlphaBits = visual->alphaBits;
- if (visual->redMask == 0xff0000 &&
- visual->greenMask == 0x00ff00 &&
- visual->blueMask == 0x0000ff) {
- if (host_byte_order() != byteOrder) {
- pipeFormat = PIPE_FORMAT_U_B8_G8_R8_A8;
- /*printf("Using format B8_G8_R8_A8 (LE dpy)\n");*/
- }
- else {
- pipeFormat = PIPE_FORMAT_U_A8_R8_G8_B8;
- /*printf("Using format A8_R8_G8_B8 (BE dpy)\n");*/
- }
- }
- else {
- assert(0);
- }
- }
- else {
- xrb->St.Base.InternalFormat = GL_COLOR_INDEX;
- xrb->St.Base._BaseFormat = GL_COLOR_INDEX;
- xrb->St.Base.DataType = GL_UNSIGNED_INT;
- xrb->St.Base.IndexBits = visual->indexBits;
- }
- /* only need to set Red/Green/EtcBits fields for user-created RBs */
- xrb->St.surface = xmesa_new_color_surface(winsys, pipeFormat);
- xms = (struct xmesa_surface *) xrb->St.surface;
- xms->xrb = xrb;
- }
- return xrb;
-}
-
-
-/**
- * Called via gl_framebuffer::Delete() method when this buffer
- * is _really_ being deleted.
- */
-void
-xmesa_delete_framebuffer(struct gl_framebuffer *fb)
-{
- XMesaBuffer b = XMESA_BUFFER(fb);
-
- if (b->num_alloced > 0) {
- /* If no other buffer uses this X colormap then free the colors. */
- if (!xmesa_find_buffer(b->display, b->cmap, b)) {
-#ifdef XFree86Server
- int client = 0;
- if (b->drawable)
- client = CLIENT_ID(b->drawable->id);
- (void)FreeColors(b->cmap, client,
- b->num_alloced, b->alloced_colors, 0);
-#else
- XFreeColors(b->display, b->cmap,
- b->alloced_colors, b->num_alloced, 0);
-#endif
- }
- }
-
- if (b->gc)
- XMesaFreeGC(b->display, b->gc);
- if (b->cleargc)
- XMesaFreeGC(b->display, b->cleargc);
- if (b->swapgc)
- XMesaFreeGC(b->display, b->swapgc);
-
- if (fb->Visual.doubleBufferMode) {
- /* free back ximage/pixmap/shmregion */
- }
-
- if (b->rowimage) {
- _mesa_free( b->rowimage->data );
- b->rowimage->data = NULL;
- XMesaDestroyImage( b->rowimage );
- }
-
- _mesa_free_framebuffer_data(fb);
- _mesa_free(fb);
-}
+++ /dev/null
-/*
- * Mesa 3-D graphics library
- * Version: 7.1
- *
- * Copyright (C) 1999-2007 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"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-/**
- * \file xm_surface.c
- * Code to allow the softpipe code to write to X windows/buffers.
- * This is a bit of a hack for now. We've basically got two different
- * abstractions for color buffers: gl_renderbuffer and pipe_surface.
- * They'll need to get merged someday...
- * For now, they're separate things that point to each other.
- */
-
-
-#include "GL/xmesa.h"
-#include "glxheader.h"
-#include "xmesaP.h"
-#include "main/context.h"
-#include "main/imports.h"
-#include "main/macros.h"
-
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "pipe/p_winsys.h"
-#include "pipe/softpipe/sp_context.h"
-#include "pipe/softpipe/sp_clear.h"
-#include "pipe/softpipe/sp_tile_cache.h"
-#include "pipe/softpipe/sp_surface.h"
-#include "state_tracker/st_context.h"
-
-
-/*
- * Dithering kernels and lookup tables.
- */
-
-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 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
-};
-
-
-
-
-/** XXX unfinished sketch... */
-struct pipe_surface *
-xmesa_create_front_surface(XMesaVisual vis, Window win)
-{
- struct xmesa_surface *xms = CALLOC_STRUCT(xmesa_surface);
- if (!xms) {
- return NULL;
- }
-
- xms->display = vis->display;
- xms->drawable = win;
-
- xms->surface.format = PIPE_FORMAT_U_A8_R8_G8_B8;
- xms->surface.refcount = 1;
-#if 0
- xms->surface.region = pipe->winsys->region_alloc(pipe->winsys,
- 1, 0, 0, 0x0);
-#endif
- return &xms->surface;
-}
-
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