* **************************************************************************/
/* $XFree86: xc/lib/GL/mesa/src/drv/i830/i830_screen.c,v 1.3 2002/12/10 01:26:53 dawes Exp $ */
-/*
- * Authors:
- * Keith Whitwell <keith@tungstengraphics.com>
- * Adapted for use on the I830M:
- * Jeff Hartmann <jhartmann@2d3d.com>
+/**
+ * \file i830_screen.c
+ *
+ * Adapted for use on the I830M by Jeff Hartmann.
+ *
+ * \author Keith Whitwell <keith@tungstengraphics.com>
+ * \author Jeff Hartmann <jhartmann@2d3d.com>
*/
DRI_CONF_END;
const GLuint __driNConfigOptions = 1;
+static PFNGLXCREATECONTEXTMODES create_context_modes = NULL;
static int i830_malloc_proxy_buf(drmBufMapPtr buffers)
{
}
#endif
+#ifndef _SOLO
+ if ( driCompareGLXAPIVersion( 20030813 ) >= 0 ) {
+ PFNGLXSCRENABLEEXTENSIONPROC glx_enable_extension =
+ (PFNGLXSCRENABLEEXTENSIONPROC) glXGetProcAddress( (const GLubyte *) "__glXScrEnableExtension" );
+ void * const psc = sPriv->psc->screenConfigs;
+
+ if ( glx_enable_extension != NULL ) {
+ if ( driCompareGLXAPIVersion( 20030915 ) >= 0 ) {
+ (*glx_enable_extension)( psc, "GLX_SGIX_fbconfig" );
+ (*glx_enable_extension)( psc, "GLX_OML_swap_method" );
+ }
+ }
+ }
+#endif
+
return GL_TRUE;
}
_mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
}
-static GLboolean i830OpenCloseFullScreen (__DRIcontextPrivate *driContextPriv)
-{
- return GL_TRUE;
-}
-
static const struct __DriverAPIRec i830API = {
.InitDriver = i830InitDriver,
.DestroyScreen = i830DestroyScreen,
.SwapBuffers = i830SwapBuffers,
.MakeCurrent = i830MakeCurrent,
.UnbindContext = i830UnbindContext,
- .OpenFullScreen = i830OpenCloseFullScreen,
- .CloseFullScreen = i830OpenCloseFullScreen,
+ .OpenFullScreen = NULL,
+ .CloseFullScreen = NULL,
.GetSwapInfo = NULL,
.GetMSC = NULL,
.WaitForMSC = NULL,
return (void *) psp;
}
#endif
+
+
+static __GLcontextModes * fill_in_modes( __GLcontextModes * modes,
+ unsigned pixel_bits,
+ unsigned depth_bits,
+ unsigned stencil_bits,
+ const GLenum * db_modes,
+ unsigned num_db_modes,
+ int visType )
+{
+ static const uint8_t bits[2][4] = {
+ { 5, 6, 5, 0 },
+ { 8, 8, 8, 8 }
+ };
+
+ static const uint32_t masks[2][4] = {
+ { 0x0000F800, 0x000007E0, 0x0000001F, 0x00000000 },
+ { 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000 }
+ };
+
+ unsigned i;
+ unsigned j;
+ const unsigned index = ((pixel_bits + 15) / 16) - 1;
+
+ for ( i = 0 ; i < num_db_modes ; i++ ) {
+ for ( j = 0 ; j < 2 ; j++ ) {
+
+ modes->redBits = bits[index][0];
+ modes->greenBits = bits[index][1];
+ modes->blueBits = bits[index][2];
+ modes->alphaBits = bits[index][3];
+ modes->redMask = masks[index][0];
+ modes->greenMask = masks[index][1];
+ modes->blueMask = masks[index][2];
+ modes->alphaMask = masks[index][3];
+ modes->rgbBits = modes->redBits + modes->greenBits
+ + modes->blueBits + modes->alphaBits;
+
+ modes->accumRedBits = 16 * j;
+ modes->accumGreenBits = 16 * j;
+ modes->accumBlueBits = 16 * j;
+ modes->accumAlphaBits = (masks[index][3] != 0) ? 16 * j : 0;
+ modes->visualRating = (j == 0) ? GLX_NONE : GLX_SLOW_CONFIG;
+
+ modes->stencilBits = stencil_bits;
+ modes->depthBits = depth_bits;
+
+ modes->visualType = visType;
+ modes->renderType = GLX_RGBA_BIT;
+ modes->drawableType = GLX_WINDOW_BIT;
+ modes->rgbMode = GL_TRUE;
+
+ if ( db_modes[i] == GLX_NONE ) {
+ modes->doubleBufferMode = GL_FALSE;
+ }
+ else {
+ modes->doubleBufferMode = GL_TRUE;
+ modes->swapMethod = db_modes[i];
+ }
+
+ modes = modes->next;
+ }
+ }
+
+ return modes;
+}
+
+
+static __GLcontextModes *
+i830FillInModes( unsigned pixel_bits, unsigned depth_bits,
+ unsigned stencil_bits, GLboolean have_back_buffer )
+{
+ __GLcontextModes * modes;
+ __GLcontextModes * m;
+ unsigned num_modes;
+ unsigned depth_buffer_factor;
+ unsigned back_buffer_factor;
+ unsigned i;
+
+ /* GLX_SWAP_COPY_OML is only supported because the MGA driver doesn't
+ * support pageflipping at all.
+ */
+ static const GLenum back_buffer_modes[] = {
+ GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
+ };
+
+ int depth_buffer_modes[2][2];
+
+
+ depth_buffer_modes[0][0] = depth_bits;
+ depth_buffer_modes[1][0] = depth_bits;
+
+ /* Just like with the accumulation buffer, always provide some modes
+ * with a stencil buffer. It will be a sw fallback, but some apps won't
+ * care about that.
+ */
+ depth_buffer_modes[0][1] = 0;
+ depth_buffer_modes[1][1] = (stencil_bits == 0) ? 8 : stencil_bits;
+
+ depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 2 : 1;
+ back_buffer_factor = (have_back_buffer) ? 3 : 1;
+
+ num_modes = depth_buffer_factor * back_buffer_factor * 4;
+
+ modes = (*create_context_modes)( num_modes, sizeof( __GLcontextModes ) );
+ m = modes;
+ for ( i = 0 ; i < depth_buffer_factor ; i++ ) {
+ m = fill_in_modes( m, pixel_bits,
+ depth_buffer_modes[i][0], depth_buffer_modes[i][1],
+ back_buffer_modes, back_buffer_factor,
+ GLX_TRUE_COLOR );
+ }
+
+ /* There's no direct color modes on i830? */
+#if 0
+ for ( i = 0 ; i < depth_buffer_factor ; i++ ) {
+ m = fill_in_modes( m, pixel_bits,
+ depth_buffer_modes[i][0], depth_buffer_modes[i][1],
+ back_buffer_modes, back_buffer_factor,
+ GLX_DIRECT_COLOR );
+ }
+#endif
+
+ /* Mark the visual as slow if there are "fake" stencil bits.
+ */
+ for ( m = modes ; m != NULL ; m = m->next ) {
+ if ( (m->stencilBits != 0) && (m->stencilBits != stencil_bits) ) {
+ m->visualRating = GLX_SLOW_CONFIG;
+ }
+ }
+
+ return modes;
+}
+
+
+/**
+ * This is the bootstrap function for the driver. libGL supplies all of the
+ * requisite information about the system, and the driver initializes itself.
+ * This routine also fills in the linked list pointed to by \c driver_modes
+ * with the \c __GLcontextModes that the driver can support for windows or
+ * pbuffers.
+ *
+ * \return A pointer to a \c __DRIscreenPrivate on success, or \c NULL on
+ * failure.
+ */
+void * __driCreateNewScreen( Display *dpy, int scrn, __DRIscreen *psc,
+ const __GLcontextModes * modes,
+ const __DRIversion * ddx_version,
+ const __DRIversion * dri_version,
+ const __DRIversion * drm_version,
+ const __DRIframebuffer * frame_buffer,
+ drmAddress pSAREA, int fd,
+ int internal_api_version,
+ __GLcontextModes ** driver_modes )
+
+{
+ __DRIscreenPrivate *psp;
+
+ psp = __driUtilCreateNewScreen(dpy, scrn, psc, NULL,
+ ddx_version, dri_version, drm_version,
+ frame_buffer, pSAREA, fd,
+ internal_api_version, &i830API);
+ if ( psp != NULL ) {
+ create_context_modes = (PFNGLXCREATECONTEXTMODES)
+ glXGetProcAddress( (const GLubyte *) "__glXCreateContextModes" );
+ if ( create_context_modes != NULL ) {
+ I830DRIPtr dri_priv = (I830DRIPtr) psp->pDevPriv;
+ *driver_modes = i830FillInModes( dri_priv->cpp * 8,
+ (dri_priv->cpp == 2) ? 16 : 24,
+ (dri_priv->cpp == 2) ? 0 : 8,
+ (dri_priv->backOffset != dri_priv->depthOffset) );
+ }
+ }
+
+ return (void *) psp;
+}
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