Implement support for mipmap generation (CopyTexImage2D regression)
Implement support for mipmap generation (CopyTexImage2D regression)

TRAC #11338

CopyTex(Sub)Image2D was broken by the coordinate space change. Render targets are rendered flipped in the Y axis.

Signed-off-by: Nicolas Capens
Signed-off-by: Daniel Koch

Author:    Andrew Lewycky

git-svn-id: 947ae547afacb859f3991e003b9d6feb04be57d7@169 736b8ea6-26fd-11df-bfd4-992fa37f6226

geekboxzone/lollipop_external_chromium_org_third_party_angle,spurious/angle-mirror,MIPS/external-chromium_org-third_party-angle,adobe/angle.js,spurious/angle-mirror,geekboxzone/lollipop_external_chromium_org_third_party_angle,geekboxzone/lollipop_external_chromium_org_third_party_angle,jgcaaprom/android_external_chromium_org_third_party_angle,jgcaaprom/android_external_chromium_org_third_party_angle,Mustaavalkosta/android_external_angle,Mustaavalkosta/android_external_angle,Mustaavalkosta/android_external_angle,spurious/angle-mirror,android-ia/platform_external_chromium_org_third_party_angle,xin3liang/platform_external_chromium_org_third_party_angle,jgcaaprom/android_external_chromium_org_third_party_angle,xin3liang/platform_external_chromium_org_third_party_angle,dumganhar/angleproject,adobe/angle.js,android-ia/platform_external_chromium_org_third_party_angle,android-ia/platform_external_chromium_org_third_party_angle,MIPS/external-chromium_org-third_party-angle,adobe/angle.js,xin3liang/platform_external_chromium_org_third_party_angle,spurious/angle-mirror,geekboxzone/lollipop_external_chromium_org_third_party_angle,android-ia/platform_external_chromium_org_third_party_angle,Mustaavalkosta/android_external_angle,dumganhar/angleproject,adobe/angle.js,MIPS/external-chromium_org-third_party-angle,jgcaaprom/android_external_chromium_org_third_party_angle,dumganhar/angleproject,MIPS/external-chromium_org-third_party-angle,dumganhar/angleproject,xin3liang/platform_external_chromium_org_third_party_angle