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prototype work for Pbuffer support

tags/mesa_4_0
Brian Paul 24 years ago
parent
7e975ba3aa
commit
7d5656bee7
2 changed files with 258 additions and 28 deletions
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  1. 256
    27
      src/mesa/drivers/x11/fakeglx.c
  2. 2
    1
      src/mesa/drivers/x11/xmesaP.h

+ 256
- 27
src/mesa/drivers/x11/fakeglx.c View File

@@ -1,4 +1,4 @@
/* $Id: fakeglx.c,v 1.55 2001/08/20 16:44:43 brianp Exp $ */
/* $Id: fakeglx.c,v 1.56 2001/09/01 20:23:25 brianp Exp $ */

/*
* Mesa 3-D graphics library
@@ -1696,6 +1696,15 @@ Fake_glXGetClientString( Display *dpy, int name )
* GLX 1.3 and later
*/

/* XXX Move this when done.
* Create an XMesaBuffer as a Pbuffer.
* New in Mesa 3.5.1 but untested.
*/
extern XMesaBuffer XMesaCreatePBuffer( XMesaVisual v, XMesaColormap cmap,
unsigned int width, unsigned int height );



static GLXFBConfig *
Fake_glXChooseFBConfig( Display *dpy, int screen,
const int *attribList, int *nitems )
@@ -1712,11 +1721,154 @@ static int
Fake_glXGetFBConfigAttrib( Display *dpy, GLXFBConfig config,
int attribute, int *value )
{
XMesaVisual v = NULL; /* XXX Fix this */
(void) dpy;
(void) config;
(void) attribute;
(void) value;
return 0;

if (!dpy || !config || !value)
return -1;

switch (attribute) {
case GLX_FBCONFIG_ID:
case GLX_BUFFER_SIZE:
if (v->mesa_visual.rgbMode)
*value = v->mesa_visual.redBits + v->mesa_visual.greenBits +
v->mesa_visual.blueBits + v->mesa_visual.alphaBits;
else
*value = v->mesa_visual.indexBits;
break;
case GLX_LEVEL:
*value = v->level;
break;
case GLX_DOUBLEBUFFER:
*value = v->mesa_visual.doubleBufferMode;
break;
case GLX_STEREO:
*value = v->mesa_visual.stereoMode;
break;
case GLX_AUX_BUFFERS:
*value = v->mesa_visual.numAuxBuffers;
break;
case GLX_RED_SIZE:
*value = v->mesa_visual.redBits;
break;
case GLX_GREEN_SIZE:
*value = v->mesa_visual.greenBits;
break;
case GLX_BLUE_SIZE:
*value = v->mesa_visual.blueBits;
break;
case GLX_ALPHA_SIZE:
*value = v->mesa_visual.alphaBits;
break;
case GLX_DEPTH_SIZE:
*value = v->mesa_visual.depthBits;
break;
case GLX_STENCIL_SIZE:
*value = v->mesa_visual.stencilBits;
break;
case GLX_ACCUM_RED_SIZE:
*value = v->mesa_visual.accumRedBits;
break;
case GLX_ACCUM_GREEN_SIZE:
*value = v->mesa_visual.accumGreenBits;
break;
case GLX_ACCUM_BLUE_SIZE:
*value = v->mesa_visual.accumBlueBits;
break;
case GLX_ACCUM_ALPHA_SIZE:
*value = v->mesa_visual.accumAlphaBits;
break;
case GLX_RENDER_TYPE:
*value = 0; /* XXX ??? */
break;
case GLX_DRAWABLE_TYPE:
*value = GLX_PBUFFER_BIT; /* XXX fix? */
break;
case GLX_X_RENDERABLE:
*value = False; /* XXX ??? */
break;
case GLX_X_VISUAL_TYPE:
switch (v->vishandle->class) {
case GrayScale:
*value = GLX_GRAY_SCALE;
break;
case StaticGray:
*value = GLX_STATIC_GRAY;
break;
case StaticColor:
*value = GLX_STATIC_COLOR;
break;
case PseudoColor:
*value = GLX_PSEUDO_COLOR;
break;
case TrueColor:
*value = GLX_TRUE_COLOR;
break;
case DirectColor:
*value = GLX_DIRECT_COLOR;
break;
default:
*value = 0;
}
break;
case GLX_CONFIG_CAVEAT:
*value = 0; /* XXX ??? */
break;
case GLX_TRANSPARENT_TYPE:
if (v->level == 0) {
/* normal planes */
*value = GLX_NONE_EXT;
}
else if (v->level > 0) {
/* overlay */
if (v->mesa_visual.rgbMode) {
*value = GLX_TRANSPARENT_RGB_EXT;
}
else {
*value = GLX_TRANSPARENT_INDEX_EXT;
}
}
else if (v->level < 0) {
/* underlay */
*value = GLX_NONE_EXT;
}
break;
case GLX_TRANSPARENT_INDEX_VALUE:
*value = transparent_pixel( v );
break;
case GLX_TRANSPARENT_RED_VALUE:
*value = 0; /* not implemented */
break;
case GLX_TRANSPARENT_GREEN_VALUE:
*value = 0; /* not implemented */
break;
case GLX_TRANSPARENT_BLUE_VALUE:
*value = 0; /* not implemented */
break;
case GLX_TRANSPARENT_ALPHA_VALUE:
*value = 0; /* not implemented */
break;
case GLX_MAX_PBUFFER_WIDTH:
*value = DisplayWidth(dpy, v->vishandle->screen);
break;
case GLX_MAX_PBUFFER_HEIGHT:
*value = DisplayHeight(dpy, v->vishandle->screen);
break;
case GLX_MAX_PBUFFER_PIXELS:
*value = DisplayWidth(dpy, v->vishandle->screen) *
DisplayHeight(dpy, v->vishandle->screen);
break;
case GLX_VISUAL_ID:
*value = v->vishandle->visualid;
break;
default:
return GLX_BAD_ATTRIBUTE;
}

return Success;
}


@@ -1733,9 +1885,13 @@ Fake_glXGetFBConfigs( Display *dpy, int screen, int *nelements )
static XVisualInfo *
Fake_glXGetVisualFromFBConfig( Display *dpy, GLXFBConfig config )
{
(void) dpy;
(void) config;
return 0;
if (dpy && config) {
XMesaVisual v = (XMesaVisual) config;
return v->vishandle;
}
else {
return NULL;
}
}


@@ -1746,38 +1902,66 @@ Fake_glXCreateWindow( Display *dpy, GLXFBConfig config, Window win,
(void) dpy;
(void) config;
(void) win;
(void) attribList;
return 0;
(void) attribList; /* Ignored in GLX 1.3 */

return win; /* A hack for now */
}


static void
Fake_glXDestroyWindow( Display *dpy, GLXWindow window )
{
(void) dpy;
(void) window;
return;
XMesaBuffer b = XMesaFindBuffer(dpy, (XMesaDrawable) window);
if (b)
XMesaDestroyBuffer(b);
/* don't destroy X window */
}


/* XXX untested */
static GLXPixmap
Fake_glXCreatePixmap( Display *dpy, GLXFBConfig config, Pixmap pixmap,
const int *attribList )
{
XMesaVisual v = (XMesaVisual) config;
XVisualInfo *visinfo;
XMesaBuffer b;

(void) dpy;
(void) config;
(void) pixmap;
(void) attribList;
return 0;
(void) attribList; /* Ignored in GLX 1.3 */

if (!dpy || !config || !pixmap)
return 0;

visinfo = v->vishandle;

v = find_glx_visual( dpy, visinfo );
if (!v) {
v = create_glx_visual( dpy, visinfo );
if (!v) {
/* unusable visual */
return 0;
}
}

b = XMesaCreatePixmapBuffer( v, pixmap, 0 );
if (!b) {
return 0;
}

return pixmap;
}


static void
Fake_glXDestroyPixmap( Display *dpy, GLXPixmap pixmap )
{
(void) dpy;
(void) pixmap;
return;
XMesaBuffer b = XMesaFindBuffer(dpy, (XMesaDrawable)pixmap);
if (b)
XMesaDestroyBuffer(b);
/* don't destroy X pixmap */
}


@@ -1785,9 +1969,36 @@ static GLXPbuffer
Fake_glXCreatePbuffer( Display *dpy, GLXFBConfig config,
const int *attribList )
{
const int *attrib;
int width = 0, height = 0;
GLboolean useLargest = GL_FALSE, preserveContents = GL_FALSE;

(void) dpy;
(void) config;
(void) attribList;

for (attrib = attribList; attrib; attrib++) {
switch (*attrib) {
case GLX_PBUFFER_WIDTH:
width = *(++attrib);
break;
case GLX_PBUFFER_HEIGHT:
height = *(++attrib);
break;
case GLX_PRESERVED_CONTENTS:
preserveContents = GL_TRUE; /* ignored */
break;
case GLX_LARGEST_PBUFFER:
useLargest = GL_TRUE; /* ignored */
break;
default:
return 0;
}
}

if (width == 0 || height == 0)
return 0;


return 0;
}

@@ -1806,8 +2017,18 @@ Fake_glXQueryDrawable( Display *dpy, GLXDrawable draw, int attribute,
{
(void) dpy;
(void) draw;
(void) attribute;
(void) value;

switch (attribute) {
case GLX_WIDTH:
case GLX_HEIGHT:
case GLX_PRESERVED_CONTENTS:
case GLX_LARGEST_PBUFFER:
case GLX_FBCONFIG_ID:
*value = 0;
return;
default:
return; /* GLX_BAD_ATTRIBUTE? */
}
}


@@ -1815,12 +2036,13 @@ static GLXContext
Fake_glXCreateNewContext( Display *dpy, GLXFBConfig config,
int renderType, GLXContext shareList, Bool direct )
{
(void) dpy;
(void) config;
(void) renderType;
(void) shareList;
(void) direct;
return 0;
XMesaVisual v = (XMesaVisual) config;

if (!dpy || !config ||
(renderType != GLX_RGBA_TYPE && renderType != GLX_COLOR_INDEX_TYPE))
return 0;

return Fake_glXCreateContext(dpy, v->vishandle, shareList, direct);
}


@@ -1829,9 +2051,16 @@ Fake_glXQueryContext( Display *dpy, GLXContext ctx, int attribute, int *value )
{
(void) dpy;
(void) ctx;
(void) attribute;
(void) value;
return 0;

switch (attribute) {
case GLX_FBCONFIG_ID:
case GLX_RENDER_TYPE:
case GLX_SCREEN:
*value = 0;
return Success;
default:
return GLX_BAD_ATTRIBUTE;
}
}



+ 2
- 1
src/mesa/drivers/x11/xmesaP.h View File

@@ -1,4 +1,4 @@
/* $Id: xmesaP.h,v 1.23 2001/05/29 19:48:47 brianp Exp $ */
/* $Id: xmesaP.h,v 1.24 2001/09/01 20:23:25 brianp Exp $ */

/*
* Mesa 3-D graphics library
@@ -147,6 +147,7 @@ struct xmesa_buffer {
XMesaContext xm_context; /* the context associated with this buffer */
XMesaDisplay *display;
GLboolean pixmap_flag; /* is the buffer a Pixmap? */
GLboolean pbuffer_flag; /* is the buffer a Pbuffer? */
XMesaDrawable frontbuffer; /* either a window or pixmap */
XMesaPixmap backpixmap; /* back buffer Pixmap */
XMesaImage *backimage; /* back buffer simulated XImage */

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