[Mesa-dev] [PATCH V5 6/7] intel: Create a miptree using offsets in intel_set_texture_image_region

[Abdiel Janulgue]

When binding a region to a texture image, re-create the miptree base-level
considering the offset and dimension information exported by DRIImage.

Signed-off-by: Abdiel Janulgue <abdiel.janulgue at linux.intel.com>
---
 src/mesa/drivers/dri/intel/intel_tex_image.c |   31 ++++++++++++++++++++------
 1 file changed, 24 insertions(+), 7 deletions(-)

diff --git a/src/mesa/drivers/dri/intel/intel_tex_image.c b/src/mesa/drivers/dri/intel/intel_tex_image.c
index 7361e6a..6c81b80 100644
--- a/src/mesa/drivers/dri/intel/intel_tex_image.c
+++ b/src/mesa/drivers/dri/intel/intel_tex_image.c
@@ -256,7 +256,11 @@ intel_set_texture_image_region(struct gl_context *ctx,
 			       GLenum target,
 			       GLenum internalFormat,
 			       gl_format format,
-                               uint32_t offset)
+                               uint32_t offset,
+                               GLuint width,
+                               GLuint height,
+                               GLuint draw_x,
+                               GLuint draw_y)
 {
    struct intel_context *intel = intel_context(ctx);
    struct intel_texture_image *intel_image = intel_texture_image(image);
@@ -264,14 +268,22 @@ intel_set_texture_image_region(struct gl_context *ctx,
    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 
    _mesa_init_teximage_fields(&intel->ctx, image,
-			      region->width, region->height, 1,
+			      width, height, 1,
 			      0, internalFormat, format);
 
    ctx->Driver.FreeTextureImageBuffer(ctx, image);
 
-   intel_image->mt = intel_miptree_create_for_region(intel, target,
-						     image->TexFormat,
-						     region);
+   intel_image->mt = intel_miptree_create_layout(intel, target, image->TexFormat,
+                                                 0, 0,
+                                                 width, height, 1,
+                                                 true, 0 /* num_samples */,
+                                                 INTEL_MSAA_LAYOUT_NONE);
+   intel_region_reference(&intel_image->mt->region, region);
+   intel_image->mt->total_width = width;
+   intel_image->mt->total_height = height;
+   intel_image->mt->level[0].slice[0].x_offset = draw_x;
+   intel_image->mt->level[0].slice[0].y_offset = draw_y;
+
    if (intel_image->mt == NULL)
        return;
    intel_texobj->needs_validate = true;
@@ -332,7 +344,10 @@ intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
    _mesa_lock_texture(&intel->ctx, texObj);
    texImage = _mesa_get_tex_image(ctx, texObj, target, level);
    intel_set_texture_image_region(ctx, texImage, rb->mt->region, target,
-				  internalFormat, texFormat, 0);
+				  internalFormat, texFormat, 0,
+                                  rb->mt->region->width,
+				  rb->mt->region->height,
+				  0, 0);
    _mesa_unlock_texture(&intel->ctx, texObj);
 }
 
@@ -363,7 +378,9 @@ intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 
    intel_set_texture_image_region(ctx, texImage, image->region,
 				  target, image->internal_format,
-                                  image->format, image->offset);
+                                  image->format, image->offset,
+                                  image->width,  image->height,
+                                  image->draw_x, image->draw_y);
 }
 
 void
-- 
1.7.9.5