2 // Copyright (c) 2013 The ANGLE Project Authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file.
7 // Contants.h: Defines some implementation specific and gl constants
9 #ifndef LIBGLESV2_CONSTANTS_H_
10 #define LIBGLESV2_CONSTANTS_H_
17 MAX_VERTEX_ATTRIBS = 16,
19 // Implementation upper limits, real maximums depend on the hardware
20 IMPLEMENTATION_MAX_VARYING_VECTORS = 32,
21 IMPLEMENTATION_MAX_DRAW_BUFFERS = 8,
22 IMPLEMENTATION_MAX_FRAMEBUFFER_ATTACHMENTS = IMPLEMENTATION_MAX_DRAW_BUFFERS + 2, // 2 extra for depth and/or stencil buffers
24 IMPLEMENTATION_MAX_VERTEX_SHADER_UNIFORM_BUFFERS = 16,
25 IMPLEMENTATION_MAX_FRAGMENT_SHADER_UNIFORM_BUFFERS = 16,
26 IMPLEMENTATION_MAX_COMBINED_SHADER_UNIFORM_BUFFERS = IMPLEMENTATION_MAX_VERTEX_SHADER_UNIFORM_BUFFERS +
27 IMPLEMENTATION_MAX_FRAGMENT_SHADER_UNIFORM_BUFFERS,
29 IMPLEMENTATION_MAX_TRANSFORM_FEEDBACK_BUFFERS = 4,
31 // These are the maximums the implementation can support
32 // The actual GL caps are limited by the device caps
33 // and should be queried from the Context
34 IMPLEMENTATION_MAX_2D_TEXTURE_SIZE = 16384,
35 IMPLEMENTATION_MAX_CUBE_MAP_TEXTURE_SIZE = 16384,
36 IMPLEMENTATION_MAX_3D_TEXTURE_SIZE = 2048,
37 IMPLEMENTATION_MAX_2D_ARRAY_TEXTURE_LAYERS = 2048,
39 IMPLEMENTATION_MAX_TEXTURE_LEVELS = 15 // 1+log2 of MAX_TEXTURE_SIZE
44 #endif // LIBGLESV2_CONSTANTS_H_