Some more nouveau_screen.c setup, not sure how correct it is yet though..

1 files changed, 308 insertions, 1 deletions

diff --git a/src/mesa/drivers/dri/nouveau/nouveau_screen.c b/src/mesa/drivers/dri/nouveau/nouveau_screen.c
index d1beafe40e..75da632447 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_screen.c
+++ b/src/mesa/drivers/dri/nouveau/nouveau_screen.c
@@ -24,9 +24,23 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 **************************************************************************/
 
+#include "glheader.h"
+#include "imports.h"
+#include "mtypes.h"
+#include "framebuffer.h"
+#include "renderbuffer.h"
+
 #include "nouveau_context.h"
 #include "nouveau_screen.h"
 #include "nouveau_object.h"
+#include "nouveau_span.h"
+
+#include "utils.h"
+#include "context.h"
+#include "vblank.h"
+#include "drirenderbuffer.h"
+
+#include "GL/internal/dri_interface.h"
 
 #include "xmlpool.h"
 
@@ -38,6 +52,8 @@ DRI_CONF_BEGIN
 DRI_CONF_END;
 static const GLuint __driNConfigOptions = 1;
 
+extern const struct dri_extension common_extensions[];
+
 static nouveauScreenPtr nouveauCreateScreen(__DRIscreenPrivate *sPriv)
 {
 	nouveauScreenPtr screen;
@@ -49,12 +65,35 @@ static nouveauScreenPtr nouveauCreateScreen(__DRIscreenPrivate *sPriv)
 		__driUtilMessage("%s: Could not allocate memory for screen structure",__FUNCTION__);
 		return NULL;
 	}
-
 	
 	/* parse information in __driConfigOptions */
 	driParseOptionInfo (&screen->optionCache,__driConfigOptions, __driNConfigOptions);
 
+	screen->fbFormat    = dri_priv->bpp / 8;
+	screen->frontOffset = dri_priv->front_offset;
+	screen->frontPitch  = dri_priv->front_pitch;
+	screen->backOffset  = dri_priv->back_offset;
+	screen->backPitch   = dri_priv->back_pitch;
+	screen->depthOffset = dri_priv->depth_offset;
+	screen->depthPitch  = dri_priv->depth_pitch;
+
 	screen->card=nouveau_card_lookup(dri_priv->device_id);
+	screen->driScreen = sPriv;
+	return screen;
+}
+
+static void
+nouveauDestroyScreen(__DRIscreenPrivate *sPriv)
+{
+	nouveauScreenPtr screen = (nouveauScreenPtr)sPriv->private;
+
+	if (!screen) return;
+
+	/* free all option information */
+	driDestroyOptionInfo (&screen->optionCache);
+
+	FREE(screen);
+	sPriv->private = NULL;
 }
 
 static GLboolean nouveauInitDriver(__DRIscreenPrivate *sPriv)
@@ -68,3 +107,271 @@ static GLboolean nouveauInitDriver(__DRIscreenPrivate *sPriv)
 	return GL_TRUE;
 }
 
+/**
+ * Create the Mesa framebuffer and renderbuffers for a given window/drawable.
+ *
+ * \todo This function (and its interface) will need to be updated to support
+ * pbuffers.
+ */
+static GLboolean
+nouveauCreateBuffer(__DRIscreenPrivate *driScrnPriv,
+                    __DRIdrawablePrivate *driDrawPriv,
+                    const __GLcontextModes *mesaVis,
+                    GLboolean isPixmap)
+{
+	nouveauScreenPtr screen = (nouveauScreenPtr) driScrnPriv->private;
+
+	if (isPixmap) {
+		return GL_FALSE; /* not implemented */
+	}
+	else {
+		const GLboolean swDepth = GL_FALSE;
+		const GLboolean swAlpha = GL_FALSE;
+		const GLboolean swAccum = mesaVis->accumRedBits > 0;
+		const GLboolean swStencil = mesaVis->stencilBits > 0 && mesaVis->depthBits != 24;
+		struct gl_framebuffer *fb = _mesa_create_framebuffer(mesaVis);
+
+		/* front color renderbuffer */
+		{
+			driRenderbuffer *frontRb
+				= driNewRenderbuffer(GL_RGBA,
+						     driScrnPriv->pFB + screen->frontOffset,
+						     screen->fbFormat,
+						     screen->frontOffset, screen->frontPitch,
+						     driDrawPriv);
+			nouveauSpanSetFunctions(frontRb, mesaVis);
+			_mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontRb->Base);
+		}
+
+		/* back color renderbuffer */
+		if (mesaVis->doubleBufferMode) {
+			driRenderbuffer *backRb
+				= driNewRenderbuffer(GL_RGBA,
+						     driScrnPriv->pFB + screen->backOffset,
+						     screen->fbFormat,
+						     screen->backOffset, screen->backPitch,
+						     driDrawPriv);
+			nouveauSpanSetFunctions(backRb, mesaVis);
+			_mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backRb->Base);
+		}
+
+		/* depth renderbuffer */
+		if (mesaVis->depthBits == 16) {
+			driRenderbuffer *depthRb
+				= driNewRenderbuffer(GL_DEPTH_COMPONENT16,
+						     driScrnPriv->pFB + screen->depthOffset,
+						     screen->fbFormat,
+						     screen->depthOffset, screen->depthPitch,
+						     driDrawPriv);
+			nouveauSpanSetFunctions(depthRb, mesaVis);
+			_mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
+		}
+		else if (mesaVis->depthBits == 24) {
+			driRenderbuffer *depthRb
+				= driNewRenderbuffer(GL_DEPTH_COMPONENT24,
+						     driScrnPriv->pFB + screen->depthOffset,
+						     screen->fbFormat,
+						     screen->depthOffset, screen->depthPitch,
+						     driDrawPriv);
+			nouveauSpanSetFunctions(depthRb, mesaVis);
+			_mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
+		}
+
+		/* stencil renderbuffer */
+		if (mesaVis->stencilBits > 0 && !swStencil) {
+			driRenderbuffer *stencilRb
+				= driNewRenderbuffer(GL_STENCIL_INDEX8_EXT,
+						     driScrnPriv->pFB + screen->depthOffset,
+						     screen->fbFormat,
+						     screen->depthOffset, screen->depthPitch,
+						     driDrawPriv);
+			nouveauSpanSetFunctions(stencilRb, mesaVis);
+			_mesa_add_renderbuffer(fb, BUFFER_STENCIL, &stencilRb->Base);
+		}
+
+		_mesa_add_soft_renderbuffers(fb,
+					     GL_FALSE, /* color */
+					     swDepth,
+					     swStencil,
+					     swAccum,
+					     swAlpha,
+					     GL_FALSE /* aux */);
+		driDrawPriv->driverPrivate = (void *) fb;
+
+		return (driDrawPriv->driverPrivate != NULL);
+	}
+}
+
+
+static void
+nouveauDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
+{
+	_mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
+}
+
+static int
+nouveauGetSwapInfo(__DRIdrawablePrivate *dpriv, __DRIswapInfo *sInfo)
+{
+	return -1;
+}
+
+static const struct __DriverAPIRec nouveauAPI = {
+	.InitDriver      = nouveauInitDriver,
+	.DestroyScreen   = nouveauDestroyScreen,
+	.CreateContext   = nouveauCreateContext,
+	.DestroyContext  = nouveauDestroyContext,
+	.CreateBuffer    = nouveauCreateBuffer,
+	.DestroyBuffer   = nouveauDestroyBuffer,
+	.SwapBuffers     = nouveauSwapBuffers,
+	.MakeCurrent     = nouveauMakeCurrent,
+	.UnbindContext   = nouveauUnbindContext,
+	.GetSwapInfo     = nouveauGetSwapInfo,
+	.GetMSC          = driGetMSC32,
+	.WaitForMSC      = driWaitForMSC32,
+	.WaitForSBC      = NULL,
+	.SwapBuffersMSC  = NULL,
+	.CopySubBuffer   = nouveauCopySubBuffer
+};
+
+
+static __GLcontextModes *
+nouveauFillInModes( 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;
+	GLenum fb_format;
+	GLenum fb_type;
+
+	/* GLX_SWAP_COPY_OML is only supported because the Intel driver doesn't
+	 * support pageflipping at all.
+	 */
+	static const GLenum back_buffer_modes[] = {
+		GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
+	};
+
+	u_int8_t depth_bits_array[3];
+	u_int8_t stencil_bits_array[3];
+
+	depth_bits_array[0] = 0;
+	depth_bits_array[1] = depth_bits;
+	depth_bits_array[2] = 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.
+	 */
+	stencil_bits_array[0] = 0;
+	stencil_bits_array[1] = 0;
+	stencil_bits_array[2] = (stencil_bits == 0) ? 8 : stencil_bits;
+
+	depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 3 : 1;
+	back_buffer_factor  = (have_back_buffer) ? 3 : 1;
+
+	num_modes = depth_buffer_factor * back_buffer_factor * 4;
+
+	if ( pixel_bits == 16 ) {
+		fb_format = GL_RGB;
+		fb_type = GL_UNSIGNED_SHORT_5_6_5;
+	} else {
+		fb_format = GL_BGRA;
+		fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
+	}
+
+	modes = (*dri_interface->createContextModes)( num_modes, sizeof( __GLcontextModes ) );
+	m = modes;
+	if (!driFillInModes(&m, fb_format, fb_type,
+			    depth_bits_array, stencil_bits_array, depth_buffer_factor,
+			    back_buffer_modes, back_buffer_factor,
+			    GLX_TRUE_COLOR)) {
+		fprintf( stderr, "[%s:%u] Error creating FBConfig!\n",
+				__func__, __LINE__ );
+		return NULL;
+	}
+	if (!driFillInModes(&m, fb_format, fb_type,
+			    depth_bits_array, stencil_bits_array, depth_buffer_factor,
+			    back_buffer_modes, back_buffer_factor,
+			    GLX_DIRECT_COLOR)) {
+		fprintf( stderr, "[%s:%u] Error creating FBConfig!\n",
+				__func__, __LINE__ );
+		return NULL;
+	}
+
+	/* 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.
+ */
+PUBLIC
+void * __driCreateNewScreen_20050727( __DRInativeDisplay *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,
+				     const __DRIinterfaceMethods * interface,
+				     __GLcontextModes ** driver_modes)
+			     
+{
+	__DRIscreenPrivate *psp;
+	static const __DRIversion ddx_expected = { 1, 2, 0 };
+	static const __DRIversion dri_expected = { 4, 0, 0 };
+	static const __DRIversion drm_expected = { 1, 0, 0 };
+
+	dri_interface = interface;
+
+	if (!driCheckDriDdxDrmVersions2("nouveau",
+					dri_version, & dri_expected,
+					ddx_version, & ddx_expected,
+					drm_version, & drm_expected)) {
+		return NULL;
+	}
+
+	psp = __driUtilCreateNewScreen(dpy, scrn, psc, NULL,
+				       ddx_version, dri_version, drm_version,
+				       frame_buffer, pSAREA, fd,
+				       internal_api_version, &nouveauAPI);
+	if ( psp != NULL ) {
+		NOUVEAUDRIPtr dri_priv = (NOUVEAUDRIPtr)psp->pDevPriv;
+
+		*driver_modes = nouveauFillInModes(dri_priv->bpp,
+						   (dri_priv->bpp == 16) ? 16 : 24,
+						   (dri_priv->bpp == 16) ? 0  : 8,
+						   (dri_priv->back_offset != dri_priv->depth_offset));
+
+		/* Calling driInitExtensions here, with a NULL context pointer, does not actually
+		 * enable the extensions.  It just makes sure that all the dispatch offsets for all
+		 * the extensions that *might* be enables are known.  This is needed because the
+		 * dispatch offsets need to be known when _mesa_context_create is called, but we can't
+		 * enable the extensions until we have a context pointer.
+		 * 
+		 * Hello chicken.  Hello egg.  How are you two today?
+		 */
+		driInitExtensions( NULL, common_extensions, GL_FALSE );
+	}
+
+	return (void *) psp;
+}
+