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intel: Keep track of x,y offsets in miptrees and use them for blitting.

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By just using offsets, we confused the hardware's tiling calculations,
resulting in failures in miptree validation and blit clears.

Fixes piglit fbo-clearmipmap.

Bug #23552. (automatic mipmap generation)
This commit is contained in:
Eric Anholt
2009-07-09 09:32:21 -07:00
parent b01937a3c9
commit 2d17dbfb53
8 changed files with 121 additions and 143 deletions
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22
src/mesa/drivers/dri/intel/intel_fbo.c
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@@ -571,7 +571,7 @@ intel_render_texture(GLcontext * ctx,
= att->Texture->Image[att->CubeMapFace][att->TextureLevel];
struct intel_renderbuffer *irb = intel_renderbuffer(att->Renderbuffer);
struct intel_texture_image *intel_image;
GLuint imageOffset;
GLuint dst_x, dst_y;
(void) fb;
@@ -618,18 +618,16 @@ intel_render_texture(GLcontext * ctx,
}
/* compute offset of the particular 2D image within the texture region */
imageOffset = intel_miptree_image_offset(intel_image->mt,
att->CubeMapFace,
att->TextureLevel);
intel_miptree_get_image_offset(intel_image->mt,
att->TextureLevel,
att->CubeMapFace,
att->Zoffset,
&dst_x, &dst_y);
if (att->Texture->Target == GL_TEXTURE_3D) {
const GLuint *offsets = intel_miptree_depth_offsets(intel_image->mt,
att->TextureLevel);
imageOffset += offsets[att->Zoffset];
}
/* store that offset in the region */
intel_image->mt->region->draw_offset = imageOffset;
intel_image->mt->region->draw_offset = (dst_y * intel_image->mt->pitch +
dst_x) * intel_image->mt->cpp;
intel_image->mt->region->draw_x = dst_x;
intel_image->mt->region->draw_y = dst_y;
/* update drawing region, etc */
intel_draw_buffer(ctx, fb);