Adding Texture3D support.

Bug 19126833

Added Texture3D argument verifications.
Added the basic API and functions. A few are still unimplemented:
- Image::loadCompressedData() (for depth other than 1)
- Texture3D::copyImage()
- Texture3D::generateMipmaps()
Added colour grading test for 3D texture

Change-Id: I9e52afa7213999f94c5916c2f301fc6fa4b42c0d
Reviewed-on: https://swiftshader-review.googlesource.com/1730
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
86 files changed
tree: 1c633c5342d5e6d8ab41d7c27e46eff6516f6a1e
  1. include/
  2. src/
  3. tests/
  4. .gitignore
  5. Readme.txt