Constants.h

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Author : Xinghua Cao
Date : 2018-08-07 15:14:05
Hash : 913ff54d
Message : ES31: support compute shader uniform buffer on D3D backend BUG=angleproject:2759 TEST=angle_end2end_tests.ComputeShaderTest.UniformBuffer/ES3_1_D3D11 Change-Id: I92326c3a84f13b364aed0daf567b68f8a411ed2b Reviewed-on: https://chromium-review.googlesource.com/1164843 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jiajia Qin <jiajia.qin@intel.com> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Xinghua Cao <xinghua.cao@intel.com>

src/libANGLE/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 LIBANGLE_CONSTANTS_H_
#define LIBANGLE_CONSTANTS_H_

#include "common/platform.h"

namespace gl
{

// The binary cache is currently left disable by default, and the application can enable it.
const size_t kDefaultMaxProgramCacheMemoryBytes = 0;

enum
{
    // Implementation upper limits, real maximums depend on the hardware
    MAX_SAMPLE_MASK_WORDS = 2,

    MAX_VERTEX_ATTRIBS         = 16,
    MAX_VERTEX_ATTRIB_BINDINGS = 16,

    // Implementation upper limits, real maximums depend on the hardware
    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_COMPUTE_SHADER_UNIFORM_BUFFERS  = 16,
    IMPLEMENTATION_MAX_COMBINED_SHADER_UNIFORM_BUFFERS =
        IMPLEMENTATION_MAX_VERTEX_SHADER_UNIFORM_BUFFERS +
        IMPLEMENTATION_MAX_FRAGMENT_SHADER_UNIFORM_BUFFERS,

    // GL_EXT_geometry_shader increases the minimum value of GL_MAX_UNIFORM_BUFFER_BINDINGS to 48.
    IMPLEMENTATION_MAX_UNIFORM_BUFFER_BINDINGS = 48,

    IMPLEMENTATION_MAX_TRANSFORM_FEEDBACK_BUFFERS = 4,

    // Maximum number of views which are supported by the implementation of ANGLE_multiview.
    IMPLEMENTATION_ANGLE_MULTIVIEW_MAX_VIEWS = 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,

    // 1+log2 of max of MAX_*_TEXTURE_SIZE
    IMPLEMENTATION_MAX_TEXTURE_LEVELS = 15,

    // Limit active textures so we can use fast bitsets.
    IMPLEMENTATION_MAX_SHADER_TEXTURES = 32,
    IMPLEMENTATION_MAX_ACTIVE_TEXTURES = IMPLEMENTATION_MAX_SHADER_TEXTURES * 2,
};
}

#endif // LIBANGLE_CONSTANTS_H_

kc3-lang/angle/src/libANGLE/Constants.h

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kc3-lang/angle /src/libANGLE/Constants.h