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-rw-r--r--src/mesa/drivers/common/meta.c25
1 files changed, 15 insertions, 10 deletions
diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c
index 69b06ed8e53..60157af98c5 100644
--- a/src/mesa/drivers/common/meta.c
+++ b/src/mesa/drivers/common/meta.c
@@ -1884,19 +1884,24 @@ _mesa_meta_BlitFramebuffer(struct gl_context *ctx,
const GLenum rb_base_format =
_mesa_base_tex_format(ctx, colorReadRb->InternalFormat);
- newTex = alloc_texture(tex, srcW, srcH, rb_base_format);
- setup_copypix_texture(ctx, tex, newTex, srcX, srcY, srcW, srcH,
+ /* Using the exact source rectangle to create the texture does incorrect
+ * linear filtering along the edges. So, allocate the texture extended along
+ * edges by one pixel in x, y directions.
+ */
+ newTex = alloc_texture(tex, srcW + 2, srcH + 2, rb_base_format);
+ setup_copypix_texture(ctx, tex, newTex,
+ srcX - 1, srcY - 1, srcW + 2, srcH + 2,
rb_base_format, filter);
/* texcoords (after texture allocation!) */
{
- verts[0].s = 0.0F;
- verts[0].t = 0.0F;
- verts[1].s = tex->Sright;
- verts[1].t = 0.0F;
- verts[2].s = tex->Sright;
- verts[2].t = tex->Ttop;
- verts[3].s = 0.0F;
- verts[3].t = tex->Ttop;
+ verts[0].s = 1.0F;
+ verts[0].t = 1.0F;
+ verts[1].s = tex->Sright - 1.0F;
+ verts[1].t = 1.0F;
+ verts[2].s = tex->Sright - 1.0F;
+ verts[2].t = tex->Ttop - 1.0F;
+ verts[3].s = 1.0F;
+ verts[3].t = tex->Ttop - 1.0F;
/* upload new vertex data */
_mesa_BufferSubData(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts);