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kc3-lang/angle/src/libGLESv2/constants.h

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  • Author : Brandon Jones
    Date : 2014-07-09 14:28:42
    Hash : f47bebc4
    Message : Refactored Texture2D, separated out D3D logic BUG=angle:688 Change-Id: I93c2ff0b125278234d61324844b79cc58135d4d8 Reviewed-on: https://chromium-review.googlesource.com/207675 Reviewed-by: Shannon Woods <shannonwoods@chromium.org> Tested-by: Brandon Jones <bajones@chromium.org>

  • src/libGLESv2/constants.h 
  • //
// Copyright (c) 2013 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//

// Contants.h: Defines some implementation specific and gl constants

#ifndef LIBGLESV2_CONSTANTS_H_
#define LIBGLESV2_CONSTANTS_H_

namespace gl
{

enum
{
    MAX_VERTEX_ATTRIBS = 16,
    MAX_TEXTURE_IMAGE_UNITS = 16,

    // Implementation upper limits, real maximums depend on the hardware
    IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS = 16,
    IMPLEMENTATION_MAX_COMBINED_TEXTURE_IMAGE_UNITS = MAX_TEXTURE_IMAGE_UNITS + IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS,    

    IMPLEMENTATION_MAX_VARYING_VECTORS = 32,
    IMPLEMENTATION_MAX_DRAW_BUFFERS = 8,
    IMPLEMENTATION_MAX_FRAMEBUFFER_ATTACHMENTS = IMPLEMENTATION_MAX_DRAW_BUFFERS + 2, // 2 extra for depth and/or stencil buffers

    IMPLEMENTATION_MAX_VERTEX_SHADER_UNIFORM_BUFFERS = 16,
    IMPLEMENTATION_MAX_FRAGMENT_SHADER_UNIFORM_BUFFERS = 16,
    IMPLEMENTATION_MAX_COMBINED_SHADER_UNIFORM_BUFFERS = IMPLEMENTATION_MAX_VERTEX_SHADER_UNIFORM_BUFFERS +
                                                         IMPLEMENTATION_MAX_FRAGMENT_SHADER_UNIFORM_BUFFERS,

    IMPLEMENTATION_MAX_TRANSFORM_FEEDBACK_BUFFERS = 4,

    // These are the maximums the implementation can support
    // The actual GL caps are limited by the device caps
    // and should be queried from the Context
    IMPLEMENTATION_MAX_2D_TEXTURE_SIZE = 16384,
    IMPLEMENTATION_MAX_CUBE_MAP_TEXTURE_SIZE = 16384,
    IMPLEMENTATION_MAX_3D_TEXTURE_SIZE = 2048,
    IMPLEMENTATION_MAX_2D_ARRAY_TEXTURE_LAYERS = 2048,

    IMPLEMENTATION_MAX_TEXTURE_LEVELS = 15   // 1+log2 of MAX_TEXTURE_SIZE
};

}

#endif // LIBGLESV2_CONSTANTS_H_