Major check-in of changes for GL_EXT_framebuffer_object extension.

Main driver impacts:
- new code for creating the Mesa GLframebuffer
- new span/pixel read/write code
Some drivers not yet updated/tested.

8 files changed, 138 insertions, 23 deletions

diff --git a/src/mesa/drivers/dri/mach64/mach64_context.c b/src/mesa/drivers/dri/mach64/mach64_context.c
index 1978c5d615..8f508fa911 100644
--- a/src/mesa/drivers/dri/mach64/mach64_context.c
+++ b/src/mesa/drivers/dri/mach64/mach64_context.c
@@ -306,14 +306,14 @@ mach64MakeCurrent( __DRIcontextPrivate *driContextPriv,
 	 mach64CalcViewport( newMach64Ctx->glCtx );
       }
 
-      _mesa_make_current2( newMach64Ctx->glCtx,
-                           (GLframebuffer *) driDrawPriv->driverPrivate,
-                           (GLframebuffer *) driReadPriv->driverPrivate );
+      _mesa_make_current( newMach64Ctx->glCtx,
+                          (GLframebuffer *) driDrawPriv->driverPrivate,
+                          (GLframebuffer *) driReadPriv->driverPrivate );
 
 
       newMach64Ctx->new_state |=  MACH64_NEW_CLIP;
    } else {
-      _mesa_make_current( 0, 0 );
+      _mesa_make_current( NULL, NULL, NULL );
    }
 
    return GL_TRUE;
diff --git a/src/mesa/drivers/dri/mach64/mach64_dd.c b/src/mesa/drivers/dri/mach64/mach64_dd.c
index f1248bd8b7..c0bb8629fa 100644
--- a/src/mesa/drivers/dri/mach64/mach64_dd.c
+++ b/src/mesa/drivers/dri/mach64/mach64_dd.c
@@ -37,6 +37,7 @@
 
 #include "context.h"
 #include "utils.h"
+#include "framebuffer.h"
 
 #define DRIVER_DATE	"20030502"
 
@@ -126,7 +127,7 @@ static void mach64DDFinish( GLcontext *ctx )
 void mach64InitDriverFuncs( struct dd_function_table *functions )
 {
    functions->GetBufferSize	= mach64DDGetBufferSize;
-   functions->ResizeBuffers    = _swrast_alloc_buffers;
+   functions->ResizeBuffers    = _mesa_resize_framebuffer;
    functions->GetString	= mach64DDGetString;
    functions->Finish		= mach64DDFinish;
    functions->Flush		= mach64DDFlush;
diff --git a/src/mesa/drivers/dri/mach64/mach64_ioctl.c b/src/mesa/drivers/dri/mach64/mach64_ioctl.c
index 752aa6ef4a..1889dc2b93 100644
--- a/src/mesa/drivers/dri/mach64/mach64_ioctl.c
+++ b/src/mesa/drivers/dri/mach64/mach64_ioctl.c
@@ -683,19 +683,19 @@ static void mach64DDClear( GLcontext *ctx, GLbitfield mask, GLboolean all,
       mmesa->new_state = save_state & ~(MACH64_NEW_MASKS | MACH64_NEW_CLIP);
    }
 
-   if ( mask & DD_FRONT_LEFT_BIT ) {
+   if ( mask & BUFFER_BIT_FRONT_LEFT ) {
       flags |= MACH64_FRONT;
-      mask &= ~DD_FRONT_LEFT_BIT;
+      mask &= ~BUFFER_BIT_FRONT_LEFT;
    }
 
-   if ( mask & DD_BACK_LEFT_BIT ) {
+   if ( mask & BUFFER_BIT_BACK_LEFT ) {
       flags |= MACH64_BACK;
-      mask &= ~DD_BACK_LEFT_BIT;
+      mask &= ~BUFFER_BIT_BACK_LEFT;
    }
 
-   if ( ( mask & DD_DEPTH_BIT ) && ctx->Depth.Mask ) {
+   if ( ( mask & BUFFER_BIT_DEPTH ) && ctx->Depth.Mask ) {
       flags |= MACH64_DEPTH;
-      mask &= ~DD_DEPTH_BIT;
+      mask &= ~BUFFER_BIT_DEPTH;
    }
 
    if ( mask )
diff --git a/src/mesa/drivers/dri/mach64/mach64_lock.c b/src/mesa/drivers/dri/mach64/mach64_lock.c
index ea926944ed..3d41d71b37 100644
--- a/src/mesa/drivers/dri/mach64/mach64_lock.c
+++ b/src/mesa/drivers/dri/mach64/mach64_lock.c
@@ -69,7 +69,7 @@ void mach64GetLock( mach64ContextPtr mmesa, GLuint flags )
 
    if ( mmesa->lastStamp != dPriv->lastStamp ) {
       mmesa->lastStamp = dPriv->lastStamp;
-      if (mmesa->glCtx->Color._DrawDestMask[0] == DD_BACK_LEFT_BIT)
+      if (mmesa->glCtx->DrawBuffer->_ColorDrawBufferMask[0] == BUFFER_BIT_BACK_LEFT)
          mach64SetCliprects( mmesa->glCtx, GL_BACK_LEFT );
       else
          mach64SetCliprects( mmesa->glCtx, GL_FRONT_LEFT );
diff --git a/src/mesa/drivers/dri/mach64/mach64_screen.c b/src/mesa/drivers/dri/mach64/mach64_screen.c
index c5806adc3d..471ae1648e 100644
--- a/src/mesa/drivers/dri/mach64/mach64_screen.c
+++ b/src/mesa/drivers/dri/mach64/mach64_screen.c
@@ -33,9 +33,12 @@
 #include "mach64_ioctl.h"
 #include "mach64_tris.h"
 #include "mach64_vb.h"
+#include "mach64_span.h"
 
 #include "context.h"
 #include "imports.h"
+#include "framebuffer.h"
+#include "renderbuffer.h"
 
 #include "utils.h"
 #include "vblank.h"
@@ -355,6 +358,7 @@ mach64DestroyScreen( __DRIscreenPrivate *driScreen )
    driScreen->private = NULL;
 }
 
+
 /* Create and initialize the Mesa and driver specific pixmap buffer
  * data.
  */
@@ -364,16 +368,62 @@ mach64CreateBuffer( __DRIscreenPrivate *driScrnPriv,
 		    const __GLcontextModes *mesaVis,
 		    GLboolean isPixmap )
 {
+   mach64ScreenPtr screen = (mach64ScreenPtr) driScrnPriv->private;
+
    if (isPixmap) {
       return GL_FALSE; /* not implemented */
    }
    else {
+#if 0
       driDrawPriv->driverPrivate = (void *) 
          _mesa_create_framebuffer( mesaVis,
                                    GL_FALSE,  /* software depth buffer? */
                                    mesaVis->stencilBits > 0,
                                    mesaVis->accumRedBits > 0,
                                    mesaVis->alphaBits > 0 );
+#else
+      struct gl_framebuffer *fb = _mesa_create_framebuffer(mesaVis);
+
+      {
+         driRenderbuffer *frontRb
+            = driNewRenderbuffer(GL_RGBA, screen->cpp,
+                                 screen->frontOffset, screen->frontPitch);
+         mach64SetSpanFunctions(frontRb, mesaVis);
+         _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontRb->Base);
+      }
+
+      if (mesaVis->doubleBufferMode) {
+         driRenderbuffer *backRb
+            = driNewRenderbuffer(GL_RGBA, screen->cpp,
+                                 screen->backOffset, screen->backPitch);
+         mach64SetSpanFunctions(backRb, mesaVis);
+         _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backRb->Base);
+      }
+
+      if (mesaVis->depthBits == 16) {
+         driRenderbuffer *depthRb
+            = driNewRenderbuffer(GL_DEPTH_COMPONENT16, screen->cpp,
+                                 screen->depthOffset, screen->depthPitch);
+         mach64SetSpanFunctions(depthRb, mesaVis);
+         _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
+      }
+      else if (mesaVis->depthBits == 24) {
+         driRenderbuffer *depthRb
+            = driNewRenderbuffer(GL_DEPTH_COMPONENT24, screen->cpp,
+                                 screen->depthOffset, screen->depthPitch);
+         mach64SetSpanFunctions(depthRb, mesaVis);
+         _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
+      }
+
+      _mesa_add_soft_renderbuffers(fb,
+                                   GL_FALSE, /* color */
+                                   GL_FALSE, /* depth */
+                                   mesaVis->stencilBits > 0,
+                                   mesaVis->accumRedBits > 0,
+                                   GL_FALSE, /* alpha */
+                                   GL_FALSE /* aux */);
+      driDrawPriv->driverPrivate = (void *) fb;
+#endif
       return (driDrawPriv->driverPrivate != NULL);
    }
 }
diff --git a/src/mesa/drivers/dri/mach64/mach64_span.c b/src/mesa/drivers/dri/mach64/mach64_span.c
index 3e553a9094..12849eebe0 100644
--- a/src/mesa/drivers/dri/mach64/mach64_span.c
+++ b/src/mesa/drivers/dri/mach64/mach64_span.c
@@ -200,15 +200,15 @@ static void mach64DDSetBuffer( GLcontext *ctx,
    mach64ContextPtr mmesa = MACH64_CONTEXT(ctx);
 
    switch ( bufferBit ) {
-   case DD_FRONT_LEFT_BIT:
+   case BUFFER_BIT_FRONT_LEFT:
       if (MACH64_DEBUG & DEBUG_VERBOSE_MSG)
-	 fprintf(stderr,"%s: DD_FRONT_LEFT_BIT\n", __FUNCTION__);
+	 fprintf(stderr,"%s: BUFFER_BIT_FRONT_LEFT\n", __FUNCTION__);
       mmesa->drawOffset = mmesa->readOffset = mmesa->mach64Screen->frontOffset;
       mmesa->drawPitch  = mmesa->readPitch  = mmesa->mach64Screen->frontPitch;
       break;
-   case DD_BACK_LEFT_BIT:
+   case BUFFER_BIT_BACK_LEFT:
       if (MACH64_DEBUG & DEBUG_VERBOSE_MSG)
-	 fprintf(stderr,"%s: DD_BACK_LEFT_BIT\n", __FUNCTION__);
+	 fprintf(stderr,"%s: BUFFER_BIT_BACK_LEFT\n", __FUNCTION__);
       mmesa->drawOffset = mmesa->readOffset = mmesa->mach64Screen->backOffset;
       mmesa->drawPitch  = mmesa->readPitch  = mmesa->mach64Screen->backPitch;
       break;
@@ -220,12 +220,14 @@ static void mach64DDSetBuffer( GLcontext *ctx,
 
 void mach64DDInitSpanFuncs( GLcontext *ctx )
 {
+#if 0
    mach64ContextPtr mmesa = MACH64_CONTEXT(ctx);
+#endif
    struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx);
 
    swdd->SetBuffer = mach64DDSetBuffer;
 
-
+#if 0
    switch ( mmesa->mach64Screen->cpp ) {
    case 2:
       swdd->WriteRGBASpan	= mach64WriteRGBASpan_RGB565;
@@ -251,13 +253,15 @@ void mach64DDInitSpanFuncs( GLcontext *ctx )
    default:
       break;
    }
+#endif
 
    /* Depth buffer is always 16 bit */
+#if 0
    swdd->ReadDepthSpan		= mach64ReadDepthSpan_16;
    swdd->WriteDepthSpan		= mach64WriteDepthSpan_16;
    swdd->ReadDepthPixels	= mach64ReadDepthPixels_16;
    swdd->WriteDepthPixels	= mach64WriteDepthPixels_16;
-  
+#endif
    /* No hardware stencil buffer */
    swdd->ReadStencilSpan	= NULL;
    swdd->WriteStencilSpan	= NULL;
@@ -272,3 +276,58 @@ void mach64DDInitSpanFuncs( GLcontext *ctx )
    swdd->ReadCI32Span		= NULL;
    swdd->ReadCI32Pixels		= NULL;
 }
+
+
+/**
+ * Plug in the Get/Put routines for the given driRenderbuffer.
+ */
+void
+mach64SetSpanFunctions(driRenderbuffer *drb, const GLvisual *vis)
+{
+   if (drb->Base.InternalFormat == GL_RGBA) {
+      if (vis->redBits == 5 && vis->greenBits == 6 && vis->blueBits == 5) {
+         drb->Base.GetRow        = mach64ReadRGBASpan_RGB565;
+         drb->Base.GetValues     = mach64ReadRGBAPixels_RGB565;
+         drb->Base.PutRow        = mach64WriteRGBASpan_RGB565;
+         drb->Base.PutRowRGB     = mach64WriteRGBSpan_RGB565;
+         drb->Base.PutMonoRow    = mach64WriteMonoRGBASpan_RGB565;
+         drb->Base.PutValues     = mach64WriteRGBAPixels_RGB565;
+         drb->Base.PutMonoValues = mach64WriteMonoRGBAPixels_RGB565;
+      }
+      else {
+         drb->Base.GetRow        = mach64ReadRGBASpan_ARGB8888;
+         drb->Base.GetValues     = mach64ReadRGBAPixels_ARGB8888;
+         drb->Base.PutRow        = mach64WriteRGBASpan_ARGB8888;
+         drb->Base.PutRowRGB     = mach64WriteRGBSpan_ARGB8888;
+         drb->Base.PutMonoRow    = mach64WriteMonoRGBASpan_ARGB8888;
+         drb->Base.PutValues     = mach64WriteRGBAPixels_ARGB8888;
+         drb->Base.PutMonoValues = mach64WriteMonoRGBAPixels_ARGB8888;
+      }
+   }
+   else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT16) {
+      drb->Base.GetRow        = mach64ReadDepthSpan_16;
+      drb->Base.GetValues     = mach64ReadDepthPixels_16;
+      drb->Base.PutRow        = mach64WriteDepthSpan_16;
+      drb->Base.PutMonoRow    = mach64WriteMonoDepthSpan_16;
+      drb->Base.PutValues     = mach64WriteDepthPixels_16;
+      drb->Base.PutMonoValues = NULL;
+   }
+   else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT24) {
+      /* never */
+      drb->Base.GetRow        = NULL;
+      drb->Base.GetValues     = NULL;
+      drb->Base.PutRow        = NULL;
+      drb->Base.PutMonoRow    = NULL;
+      drb->Base.PutValues     = NULL;
+      drb->Base.PutMonoValues = NULL;
+   }
+   else if (drb->Base.InternalFormat == GL_STENCIL_INDEX8_EXT) {
+      /* never */
+      drb->Base.GetRow        = NULL;
+      drb->Base.GetValues     = NULL;
+      drb->Base.PutRow        = NULL;
+      drb->Base.PutMonoRow    = NULL;
+      drb->Base.PutValues     = NULL;
+      drb->Base.PutMonoValues = NULL;
+   }
+}
diff --git a/src/mesa/drivers/dri/mach64/mach64_span.h b/src/mesa/drivers/dri/mach64/mach64_span.h
index b83ac7c721..0f4c766477 100644
--- a/src/mesa/drivers/dri/mach64/mach64_span.h
+++ b/src/mesa/drivers/dri/mach64/mach64_span.h
@@ -31,6 +31,11 @@
 #ifndef __MACH64_SPAN_H__
 #define __MACH64_SPAN_H__
 
+#include "drirenderbuffer.h"
+
 extern void mach64DDInitSpanFuncs( GLcontext *ctx );
 
+extern void
+mach64SetSpanFunctions(driRenderbuffer *rb, const GLvisual *vis);
+
 #endif
diff --git a/src/mesa/drivers/dri/mach64/mach64_state.c b/src/mesa/drivers/dri/mach64/mach64_state.c
index ea55124d91..d9b5725a63 100644
--- a/src/mesa/drivers/dri/mach64/mach64_state.c
+++ b/src/mesa/drivers/dri/mach64/mach64_state.c
@@ -732,18 +732,18 @@ static void mach64DDDrawBuffer( GLcontext *ctx, GLenum mode )
    /*
     * _DrawDestMask is easier to cope with than <mode>.
     */
-   switch ( ctx->Color._DrawDestMask[0] ) {
-   case DD_FRONT_LEFT_BIT:
+   switch ( ctx->DrawBuffer->_ColorDrawBufferMask[0] ) {
+   case BUFFER_BIT_FRONT_LEFT:
       FALLBACK( mmesa, MACH64_FALLBACK_DRAW_BUFFER, GL_FALSE );
       mach64SetCliprects( ctx, GL_FRONT_LEFT );
       if (MACH64_DEBUG & DEBUG_VERBOSE_MSG)
-	 fprintf(stderr,"%s: DD_FRONT_LEFT_BIT\n", __FUNCTION__);
+	 fprintf(stderr,"%s: BUFFER_BIT_FRONT_LEFT\n", __FUNCTION__);
       break;
-   case DD_BACK_LEFT_BIT:
+   case BUFFER_BIT_BACK_LEFT:
       FALLBACK( mmesa, MACH64_FALLBACK_DRAW_BUFFER, GL_FALSE );
       mach64SetCliprects( ctx, GL_BACK_LEFT );
       if (MACH64_DEBUG & DEBUG_VERBOSE_MSG)
-	 fprintf(stderr,"%s: DD_BACK_LEFT_BIT\n", __FUNCTION__);
+	 fprintf(stderr,"%s: BUFFER_BIT_BACK_LEFT\n", __FUNCTION__);
       break;
    default:
       /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */