X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fdrivers%2Fdri%2Fi965%2Fintel_buffers.c;h=fd522cc4f4d47ba35ffc042aedfcdb4e80e47d37;hb=8c47ccb13a198f4d38c772df1de457de34dde23e;hp=9e3b585e903db0e1b3e813ffba327d6d3dbd1fa6;hpb=877128505431adaf817dc8069172ebe4a1cdf5d8;p=mesa.git

diff --git a/src/mesa/drivers/dri/i965/intel_buffers.c b/src/mesa/drivers/dri/i965/intel_buffers.c
index 9e3b585e903..fd522cc4f4d 100644
--- a/src/mesa/drivers/dri/i965/intel_buffers.c
+++ b/src/mesa/drivers/dri/i965/intel_buffers.c
@@ -1,5 +1,4 @@
-/**************************************************************************
- *
+/*
  * Copyright 2003 VMware, Inc.
  * All Rights Reserved.
  *
@@ -7,7 +6,7 @@
  * copy of this software and associated documentation files (the
  * "Software"), to deal in the Software without restriction, including
  * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
+ * distribute, sublicense, and/or sell copies of the Software, and to
  * permit persons to whom the Software is furnished to do so, subject to
  * the following conditions:
  *
@@ -17,13 +16,12 @@
  *
  * 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.
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  * 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.
- *
- **************************************************************************/
+ */
 
 #include "brw_context.h"
 #include "intel_buffers.h"
@@ -34,41 +32,18 @@
 #include "main/framebuffer.h"
 #include "main/renderbuffer.h"
 
-/**
- * Check if we're about to draw into the front color buffer.
- * If so, set the brw->front_buffer_dirty field to true.
- */
-void
-intel_check_front_buffer_rendering(struct brw_context *brw)
-{
-   struct gl_context *ctx = &brw->ctx;
-   const struct gl_framebuffer *fb = ctx->DrawBuffer;
-   if (_mesa_is_winsys_fbo(fb)) {
-      /* drawing to window system buffer */
-      if (fb->_NumColorDrawBuffers > 0) {
-         if (fb->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT) {
-	    brw->front_buffer_dirty = true;
-	 }
-      }
-   }
-}
-
 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 brw_context *const brw = brw_context(ctx);
-      const bool was_front_buffer_rendering = brw->is_front_buffer_rendering;
 
-      brw->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 && brw->is_front_buffer_rendering)
-	 dri2InvalidateDrawable(brw->driContext->driDrawablePriv);
+      dri2InvalidateDrawable(brw->driContext->driDrawablePriv);
+      intel_prepare_render(brw);
    }
 }
 
@@ -76,18 +51,15 @@ 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 brw_context *const brw = brw_context(ctx);
-      const bool was_front_buffer_reading = brw->is_front_buffer_reading;
-
-      brw->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 && brw->is_front_buffer_reading)
-	 dri2InvalidateDrawable(brw->driContext->driReadablePriv);
+      dri2InvalidateDrawable(brw->driContext->driReadablePriv);
+      intel_prepare_render(brw);
    }
 }