X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fdrivers%2Fdri%2Fi915%2Fintel_buffers.c;h=386e032443a8101715baa5c22161076882606bbd;hb=ca4d1def392249209a5980fadb1678ffba95b381;hp=fdad480cb39ca392d4bb2ba4fe89c6c08777db8d;hpb=733d32f3765be84a7e908df7e99a278cadcee853;p=mesa.git

diff --git a/src/mesa/drivers/dri/i915/intel_buffers.c b/src/mesa/drivers/dri/i915/intel_buffers.c
index fdad480cb39..386e032443a 100644
--- a/src/mesa/drivers/dri/i915/intel_buffers.c
+++ b/src/mesa/drivers/dri/i915/intel_buffers.c
@@ -1,6 +1,6 @@
 /**************************************************************************
  * 
- * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2003 VMware, Inc.
  * All Rights Reserved.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -18,7 +18,7 @@
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
@@ -34,20 +34,6 @@
 #include "main/framebuffer.h"
 #include "main/renderbuffer.h"
 
-/**
- * Return pointer to current color reading region, or NULL.
- */
-struct intel_region *
-intel_readbuf_region(struct intel_context *intel)
-{
-   struct intel_renderbuffer *irb
-      = intel_renderbuffer(intel->ctx.ReadBuffer->_ColorReadBuffer);
-   if (irb && irb->mt)
-      return irb->mt->region;
-   else
-      return NULL;
-}
-
 /**
  * Check if we're about to draw into the front color buffer.
  * If so, set the intel->front_buffer_dirty field to true.
@@ -69,20 +55,14 @@ intel_check_front_buffer_rendering(struct intel_context *intel)
 static void
 intelDrawBuffer(struct gl_context * ctx, GLenum mode)
 {
-   if (ctx->DrawBuffer && _mesa_is_winsys_fbo(ctx->DrawBuffer)) {
+   if (_mesa_is_front_buffer_drawing(ctx->DrawBuffer)) {
       struct intel_context *const intel = intel_context(ctx);
-      const bool was_front_buffer_rendering =
-	intel->is_front_buffer_rendering;
-
-      intel->is_front_buffer_rendering = (mode == GL_FRONT_LEFT)
-	|| (mode == GL_FRONT) || (mode == GL_FRONT_AND_BACK);
 
-      /* If we weren't front-buffer rendering before but we are now,
-       * invalidate our DRI drawable so we'll ask for new buffers
+      /* If we might be front-buffer rendering on this buffer for the first
+       * time, invalidate our DRI drawable so we'll ask for new buffers
        * (including the fake front) before we start rendering again.
        */
-      if (!was_front_buffer_rendering && intel->is_front_buffer_rendering)
-	 dri2InvalidateDrawable(intel->driContext->driDrawablePriv);
+      dri2InvalidateDrawable(intel->driContext->driDrawablePriv);
    }
 
    intel_draw_buffer(ctx);
@@ -92,20 +72,14 @@ intelDrawBuffer(struct gl_context * ctx, GLenum mode)
 static void
 intelReadBuffer(struct gl_context * ctx, GLenum mode)
 {
-   if (ctx->DrawBuffer && _mesa_is_winsys_fbo(ctx->DrawBuffer)) {
+   if (_mesa_is_front_buffer_reading(ctx->ReadBuffer)) {
       struct intel_context *const intel = intel_context(ctx);
-      const bool was_front_buffer_reading =
-	intel->is_front_buffer_reading;
-
-      intel->is_front_buffer_reading = (mode == GL_FRONT_LEFT)
-	|| (mode == GL_FRONT);
 
-      /* If we weren't front-buffer reading before but we are now,
-       * invalidate our DRI drawable so we'll ask for new buffers
+      /* If we might be front-buffer reading on this buffer for the first
+       * time, invalidate our DRI drawable so we'll ask for new buffers
        * (including the fake front) before we start reading again.
        */
-      if (!was_front_buffer_reading && intel->is_front_buffer_reading)
-	 dri2InvalidateDrawable(intel->driContext->driReadablePriv);
+      dri2InvalidateDrawable(intel->driContext->driReadablePriv);
    }
 }