src/gallium/winsys/xlib/xmesaP.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  7.1
   4  *
   5  * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25
  26 #ifndef XMESAP_H
  27 #define XMESAP_H
  28
  29
  30 #include "GL/xmesa.h"
  31 #include "mtypes.h"
  32 #ifdef XFree86Server
  33 #include "xm_image.h"
  34 #endif
  35
  36 #include "state_tracker/st_context.h"
  37 #include "state_tracker/st_public.h"
  38 #include "pipe/p_thread.h"
  39
  40
  41 extern pipe_mutex _xmesa_lock;
  42
  43 extern XMesaBuffer XMesaBufferList;
  44
  45 /*
  46  */
  47 #define XMESA_SOFTPIPE 1
  48 #define XMESA_AUB      2
  49 extern int xmesa_mode;
  50
  51
  52 /**
  53  * Visual inforation, derived from GLvisual.
  54  * Basically corresponds to an XVisualInfo.
  55  */
  56 struct xmesa_visual {
  57    GLvisual mesa_visual;        /* Device independent visual parameters */
  58    XMesaDisplay *display;       /* The X11 display */
  59 #ifdef XFree86Server
  60    GLint ColormapEntries;
  61    GLint nplanes;
  62 #else
  63    XMesaVisualInfo visinfo;     /* X's visual info (pointer to private copy) */
  64    XVisualInfo *vishandle;      /* Only used in fakeglx.c */
  65 #endif
  66    GLint BitsPerPixel;          /* True bits per pixel for XImages */
  67
  68    GLboolean ximage_flag;       /* Use XImage for back buffer (not pixmap)? */
  69 };
  70
  71
  72 /**
  73  * Context info, derived from st_context.
  74  * Basically corresponds to a GLXContext.
  75  */
  76 struct xmesa_context {
  77    struct st_context *st;
  78    XMesaVisual xm_visual;       /** pixel format info */
  79    XMesaBuffer xm_buffer;       /** current drawbuffer */
  80 };
  81
  82
  83 /**
  84  * Types of X/GLX drawables we might render into.
  85  */
  86 typedef enum {
  87    WINDOW,          /* An X window */
  88    GLXWINDOW,       /* GLX window */
  89    PIXMAP,          /* GLX pixmap */
  90    PBUFFER          /* GLX Pbuffer */
  91 } BufferType;
  92
  93
  94 /**
  95  * Framebuffer information, derived from.
  96  * Basically corresponds to a GLXDrawable.
  97  */
  98 struct xmesa_buffer {
  99    struct st_framebuffer *stfb;
 100
 101    GLboolean wasCurrent;        /* was ever the current buffer? */
 102    XMesaVisual xm_visual;       /* the X/Mesa visual */
 103    XMesaDrawable drawable;      /* Usually the X window ID */
 104    XMesaColormap cmap;          /* the X colormap */
 105    BufferType type;             /* window, pixmap, pbuffer or glxwindow */
 106
 107    XMesaImage *tempImage;
 108    unsigned long selectedEvents;/* for pbuffers only */
 109
 110    GLuint shm;                  /* X Shared Memory extension status:    */
 111                                 /*    0 = not available                 */
 112                                 /*    1 = XImage support available      */
 113                                 /*    2 = Pixmap support available too  */
 114 #if defined(USE_XSHM) && !defined(XFree86Server)
 115    XShmSegmentInfo shminfo;
 116 #endif
 117
 118    XMesaGC gc;                  /* scratch GC for span, line, tri drawing */
 119
 120    /* GLX_EXT_texture_from_pixmap */
 121    GLint TextureTarget; /** GLX_TEXTURE_1D_EXT, for example */
 122    GLint TextureFormat; /** GLX_TEXTURE_FORMAT_RGB_EXT, for example */
 123    GLint TextureMipmap; /** 0 or 1 */
 124
 125    struct xmesa_buffer *Next;   /* Linked list pointer: */
 126 };
 127
 128
 129
 130 /** cast wrapper */
 131 static INLINE XMesaContext
 132 xmesa_context(GLcontext *ctx)
 133 {
 134    return (XMesaContext) ctx->DriverCtx;
 135 }
 136
 137
 138 /** cast wrapper */
 139 static INLINE XMesaBuffer
 140 xmesa_buffer(GLframebuffer *fb)
 141 {
 142    struct st_framebuffer *stfb = (struct st_framebuffer *) fb;
 143    return (XMesaBuffer) st_framebuffer_private(stfb);
 144 }
 145
 146
 147 extern void
 148 xmesa_delete_framebuffer(struct gl_framebuffer *fb);
 149
 150 extern XMesaBuffer
 151 xmesa_find_buffer(XMesaDisplay *dpy, XMesaColormap cmap, XMesaBuffer notThis);
 152
 153 extern void
 154 xmesa_check_and_update_buffer_size(XMesaContext xmctx, XMesaBuffer drawBuffer);
 155
 156 extern void
 157 xmesa_destroy_buffers_on_display(XMesaDisplay *dpy);
 158
 159 extern struct pipe_context *
 160 xmesa_create_pipe_context(XMesaContext xm, uint pixelformat);
 161
 162 static INLINE GLuint
 163 xmesa_buffer_width(XMesaBuffer b)
 164 {
 165    return b->stfb->Base.Width;
 166 }
 167
 168 static INLINE GLuint
 169 xmesa_buffer_height(XMesaBuffer b)
 170 {
 171    return b->stfb->Base.Height;
 172 }
 173
 174 extern void
 175 xmesa_display_surface(XMesaBuffer b, const struct pipe_surface *surf);
 176
 177 extern int
 178 xmesa_check_for_xshm(XMesaDisplay *display);
 179
 180 #endif