Mesa (master): i965: Replace checks for rb->Name with FlipY (v2)

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Module: Mesa
Branch: master
Commit: 08f97407fb14f53bf9f43dc4165a185418437a6b
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=08f97407fb14f53bf9f43dc4165a185418437a6b

Author: Fritz Koenig <frkoenig at google.com>
Date:   Mon Sep 17 13:51:35 2018 -0700

i965: Replace checks for rb->Name with FlipY (v2)

In the GL_MESA_framebuffer_flip_y implementation
_mesa_is_winsys_fbo checks were replaced with
FlipY checks.  rb->Name is also used to determine
if a buffer is winsys.

v2: Fixes annotation [for emil]

Fixes: ab05dd183cc ("i965: implement GL_MESA_framebuffer_flip_y [v3]")
Reviewed-by: Jason Ekstrand <jason at jlekstrand.net>
Reviewed-by: Chad Versace <chadversary at chromium.org>

---

 src/mesa/drivers/dri/i965/brw_blorp.c        | 20 +++++++++-----------
 src/mesa/drivers/dri/i965/intel_pixel_read.c |  4 ++--
 2 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_blorp.c b/src/mesa/drivers/dri/i965/brw_blorp.c
index ad747e0766..ad3a47ef03 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp.c
+++ b/src/mesa/drivers/dri/i965/brw_blorp.c
@@ -1224,12 +1224,12 @@ do_single_blorp_clear(struct brw_context *brw, struct gl_framebuffer *fb,
 
    x0 = fb->_Xmin;
    x1 = fb->_Xmax;
-   if (rb->Name != 0) {
-      y0 = fb->_Ymin;
-      y1 = fb->_Ymax;
-   } else {
+   if (fb->FlipY) {
       y0 = rb->Height - fb->_Ymax;
       y1 = rb->Height - fb->_Ymin;
+   } else {
+      y0 = fb->_Ymin;
+      y1 = fb->_Ymax;
    }
 
    /* If the clear region is empty, just return. */
@@ -1415,9 +1415,8 @@ brw_blorp_clear_depth_stencil(struct brw_context *brw,
    if (!(mask & (BUFFER_BITS_DEPTH_STENCIL)))
       return;
 
-   uint32_t x0, x1, y0, y1, rb_name, rb_height;
+   uint32_t x0, x1, y0, y1, rb_height;
    if (depth_rb) {
-      rb_name = depth_rb->Name;
       rb_height = depth_rb->Height;
       if (stencil_rb) {
          assert(depth_rb->Width == stencil_rb->Width);
@@ -1425,18 +1424,17 @@ brw_blorp_clear_depth_stencil(struct brw_context *brw,
       }
    } else {
       assert(stencil_rb);
-      rb_name = stencil_rb->Name;
       rb_height = stencil_rb->Height;
    }
 
    x0 = fb->_Xmin;
    x1 = fb->_Xmax;
-   if (rb_name != 0) {
-      y0 = fb->_Ymin;
-      y1 = fb->_Ymax;
-   } else {
+   if (fb->FlipY) {
       y0 = rb_height - fb->_Ymax;
       y1 = rb_height - fb->_Ymin;
+   } else {
+      y0 = fb->_Ymin;
+      y1 = fb->_Ymax;
    }
 
    /* If the clear region is empty, just return. */
diff --git a/src/mesa/drivers/dri/i965/intel_pixel_read.c b/src/mesa/drivers/dri/i965/intel_pixel_read.c
index 492ea7cda9..09a3c3440f 100644
--- a/src/mesa/drivers/dri/i965/intel_pixel_read.c
+++ b/src/mesa/drivers/dri/i965/intel_pixel_read.c
@@ -181,7 +181,7 @@ intel_readpixels_tiled_memcpy(struct gl_context * ctx,
     * tiled_to_linear a negative pitch so that it walks through the
     * client's data backwards as it walks through the renderbufer forwards.
     */
-   if (rb->Name == 0) {
+   if (ctx->ReadBuffer->FlipY) {
       yoffset = rb->Height - yoffset - height;
       pixels += (ptrdiff_t) (height - 1) * dst_pitch;
       dst_pitch = -dst_pitch;
@@ -249,7 +249,7 @@ intel_readpixels_blorp(struct gl_context *ctx,
    return brw_blorp_download_miptree(brw, irb->mt, rb->Format, swizzle,
                                      irb->mt_level, x, y, irb->mt_layer,
                                      w, h, 1, GL_TEXTURE_2D, format, type,
-                                     rb->Name == 0, pixels, packing);
+                                     ctx->ReadBuffer->FlipY, pixels, packing);
 }
 
 void