From e4b2356c07d31fbeeabb13b2fb47db703b473080 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Wed, 4 May 2005 20:11:35 +0000
Subject: 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.

---
 src/mesa/drivers/dri/trident/trident_context.c | 74 ++++++++++++++++++++++++--
 1 file changed, 70 insertions(+), 4 deletions(-)

(limited to 'src/mesa/drivers/dri/trident/trident_context.c')

diff --git a/src/mesa/drivers/dri/trident/trident_context.c b/src/mesa/drivers/dri/trident/trident_context.c
index cbf2d1df56..744f384c62 100644
--- a/src/mesa/drivers/dri/trident/trident_context.c
+++ b/src/mesa/drivers/dri/trident/trident_context.c
@@ -39,11 +39,14 @@
 #include "simple_list.h"
 #include "matrix.h"
 #include "extensions.h"
+#include "framebuffer.h"
+#include "renderbuffer.h"
 #if defined(USE_X86_ASM)
 #include "x86/common_x86_asm.h"
 #endif
 #include "simple_list.h"
 #include "mm.h"
+#include "drirenderbuffer.h"
 
 #include "drivers/common/driverfuncs.h"
 #include "dri_util.h"
@@ -197,10 +200,13 @@ tridentCreateBuffer( __DRIscreenPrivate *driScrnPriv,
                    const __GLcontextModes *mesaVis,
                    GLboolean isPixmap )
 {
+   tridentScreenPtr screen = (tridentScreenPtr) driScrnPriv->private;
+
    if (isPixmap) {
       return GL_FALSE; /* not implemented */
    }
    else {
+#if 0
       driDrawPriv->driverPrivate = (void *) 
          _mesa_create_framebuffer(mesaVis,
                                   GL_FALSE,  /* software depth buffer? */
@@ -208,6 +214,66 @@ tridentCreateBuffer( __DRIscreenPrivate *driScrnPriv,
                                   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);
+         /*
+         tridentSetSpanFunctions(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);
+         /*
+         tridentSetSpanFunctions(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);
+         /*
+         tridentSetSpanFunctions(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);
+         /*
+         tridentSetSpanFunctions(depthRb, mesaVis);
+         */
+         _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base);
+      }
+
+      /* no h/w stencil?
+      if (mesaVis->stencilBits > 0 && !swStencil) {
+         driRenderbuffer *stencilRb
+            = driNewRenderbuffer(GL_STENCIL_INDEX8_EXT);
+         tridentSetSpanFunctions(stencilRb, mesaVis);
+         _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &stencilRb->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);
    }
 }
@@ -265,16 +331,16 @@ tridentMakeCurrent(__DRIcontextPrivate *driContextPriv,
    newCtx->drawOffset = newCtx->tridentScreen->backOffset;
    newCtx->drawPitch = newCtx->tridentScreen->backPitch;
 
-	_mesa_make_current2( newCtx->glCtx, 
-			  (GLframebuffer *) driDrawPriv->driverPrivate,
-			  (GLframebuffer *) driReadPriv->driverPrivate );
+	_mesa_make_current( newCtx->glCtx, 
+                            (GLframebuffer *) driDrawPriv->driverPrivate,
+                            (GLframebuffer *) driReadPriv->driverPrivate );
 
 	if (!newCtx->glCtx->Viewport.Width) {
 	    _mesa_set_viewport(newCtx->glCtx, 0, 0, 
 					driDrawPriv->w, driDrawPriv->h);
 	}
     } else {
-	_mesa_make_current( 0, 0 );
+	_mesa_make_current( NULL, NULL, NULL );
     }
     return GL_TRUE;
 }
-- 
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