Use __DRIextension mechanism providing loader functionality to the driver.

[mesa.git] / src / mesa / drivers / dri / unichrome / via_state.c

diff --git a/src/mesa/drivers/dri/unichrome/via_state.c b/src/mesa/drivers/dri/unichrome/via_state.c
index 30b9dc289a74d570446a92acc2f68011bbcbcdde..d2c528923fd71acdc8f6092e4c687f5e6df6aa31 100644 (file)
--- a/src/mesa/drivers/dri/unichrome/via_state.c
+++ b/src/mesa/drivers/dri/unichrome/via_state.c
@@ -500,10 +500,8 @@ void viaEmitState(struct via_context *vmesa)
 
       OUT_RING( HC_HEADER2 );                     
       OUT_RING( (HC_ParaType_NotTex << 16) );
-      OUT_RING( (HC_SubA_HSPXYOS << 24) | 
-               (((32- vrb->drawXoff) & 0x1f) << HC_HSPXOS_SHIFT));
-      OUT_RING( (HC_SubA_HSPXYOS << 24) | 
-               (((32 - vrb->drawXoff) & 0x1f) << HC_HSPXOS_SHIFT));
+      OUT_RING( (HC_SubA_HSPXYOS << 24) );
+      OUT_RING( (HC_SubA_HSPXYOS << 24) );
 
       ADVANCE_RING();
    }
@@ -658,13 +656,18 @@ static void viaDrawBuffer(GLcontext *ctx, GLenum mode)
    if (!ctx->DrawBuffer)
       return;
 
-   switch ( ctx->DrawBuffer->_ColorDrawBufferMask[0] ) {
-   case BUFFER_BIT_FRONT_LEFT:
+   if (ctx->DrawBuffer->_NumColorDrawBuffers != 1) {
+      FALLBACK(vmesa, VIA_FALLBACK_DRAW_BUFFER, GL_TRUE);
+      return;
+   }
+
+   switch ( ctx->DrawBuffer->_ColorDrawBufferIndexes[0] ) {
+   case BUFFER_FRONT_LEFT:
       VIA_FLUSH_DMA(vmesa);
       vmesa->drawBuffer = &vmesa->front;
       FALLBACK(vmesa, VIA_FALLBACK_DRAW_BUFFER, GL_FALSE);
       break;
-   case BUFFER_BIT_BACK_LEFT:
+   case BUFFER_BACK_LEFT:
       VIA_FLUSH_DMA(vmesa);
       vmesa->drawBuffer = &vmesa->back;
       FALLBACK(vmesa, VIA_FALLBACK_DRAW_BUFFER, GL_FALSE);
@@ -712,12 +715,8 @@ static void viaColorMask(GLcontext *ctx,
 }
 
 
-/* =============================================================
- */
 
-
-/* Using drawXoff like this is incorrect outside of locked regions.
- * This hardware just isn't capable of private back buffers without
+/* This hardware just isn't capable of private back buffers without
  * glitches and/or a hefty locking scheme.
  */
 void viaCalcViewport(GLcontext *ctx)
@@ -729,12 +728,10 @@ void viaCalcViewport(GLcontext *ctx)
     const GLfloat *v = ctx->Viewport._WindowMap.m;
     GLfloat *m = vmesa->ViewportMatrix.m;
     
-    /* See also via_translate_vertex.
-     */
     m[MAT_SX] =   v[MAT_SX];
-    m[MAT_TX] =   v[MAT_TX] + SUBPIXEL_X + vrb->drawXoff;
+    m[MAT_TX] =   v[MAT_TX] + vrb->drawX + SUBPIXEL_X;
     m[MAT_SY] = - v[MAT_SY];
-    m[MAT_TY] = - v[MAT_TY] + dPriv->h + SUBPIXEL_Y;
+    m[MAT_TY] = - v[MAT_TY] + vrb->drawY + SUBPIXEL_Y + vrb->drawH;
     m[MAT_SZ] =   v[MAT_SZ] * (1.0 / vmesa->depth_max);
     m[MAT_TZ] =   v[MAT_TZ] * (1.0 / vmesa->depth_max);
 }