Module: Mesa
Branch: master
Commit: 206fbd9640f076ada23368edf158b6d40f673ba7
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=206fbd9640f076ada23368edf158b6d40f673ba7

Author: Dave Airlie <[email protected]>
Date:   Thu Oct 21 13:20:14 2010 +1000

r600g: all non-0 mipmap levels need to be w/h aligned to POT.

this adds a new minify function to the driver to ensure this.

---

 src/gallium/drivers/r600/r600_texture.c |   18 +++++++++++++-----
 1 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/src/gallium/drivers/r600/r600_texture.c 
b/src/gallium/drivers/r600/r600_texture.c
index 95906a7..b9348ba 100644
--- a/src/gallium/drivers/r600/r600_texture.c
+++ b/src/gallium/drivers/r600/r600_texture.c
@@ -92,6 +92,15 @@ static unsigned r600_texture_get_offset(struct 
r600_resource_texture *rtex,
        }
 }
 
+static unsigned mip_minify(unsigned size, unsigned level)
+{
+       unsigned val;
+       val = u_minify(size, level);
+       if (level > 0)
+               val = util_next_power_of_two(val);
+       return val;
+}
+
 static unsigned r600_texture_get_stride(struct pipe_screen *screen,
                                        struct r600_resource_texture *rtex,
                                        unsigned level)
@@ -104,7 +113,7 @@ static unsigned r600_texture_get_stride(struct pipe_screen 
*screen,
        if (rtex->pitch_override)
                return rtex->pitch_override;
 
-       width = u_minify(ptex->width0, level);
+       width = mip_minify(ptex->width0, level);
 
        stride = util_format_get_stride(ptex->format, align(width, 64));
        if (chipc == EVERGREEN)
@@ -121,8 +130,7 @@ static unsigned r600_texture_get_nblocksy(struct 
pipe_screen *screen,
        struct pipe_resource *ptex = &rtex->resource.base.b;
        unsigned height;
 
-       height = u_minify(ptex->height0, level);
-       height = util_next_power_of_two(height);
+       height = mip_minify(ptex->height0, level);
        return util_format_get_nblocksy(ptex->format, height);
 }
 
@@ -249,8 +257,8 @@ static struct pipe_surface *r600_get_tex_surface(struct 
pipe_screen *screen,
        pipe_reference_init(&surface->reference, 1);
        pipe_resource_reference(&surface->texture, texture);
        surface->format = texture->format;
-       surface->width = u_minify(texture->width0, level);
-       surface->height = u_minify(texture->height0, level);
+       surface->width = mip_minify(texture->width0, level);
+       surface->height = mip_minify(texture->height0, level);
        surface->offset = offset;
        surface->usage = flags;
        surface->zslice = zslice;

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