// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "Image.hpp"
#include "../libEGL/Texture.hpp"
#include "../common/debug.h"
#include "Common/Math.hpp"
#include "Common/Thread.hpp"
#include <GLES3/gl3.h>
#include <string.h>
#include <algorithm>
#if defined(__APPLE__)
#include <CoreFoundation/CoreFoundation.h>
#include <IOSurface/IOSurface.h>
#endif
namespace gl
{
bool IsUnsizedInternalFormat(GLint internalformat)
{
switch(internalformat)
{
case GL_ALPHA:
case GL_LUMINANCE:
case GL_LUMINANCE_ALPHA:
case GL_RED:
case GL_RG:
case GL_RGB:
case GL_RGBA:
case GL_RED_INTEGER:
case GL_RG_INTEGER:
case GL_RGB_INTEGER:
case GL_RGBA_INTEGER:
case GL_BGRA_EXT:
case GL_DEPTH_COMPONENT:
case GL_DEPTH_STENCIL:
// GL_EXT_sRGB
// case GL_SRGB_EXT:
// case GL_SRGB_ALPHA_EXT:
return true;
default:
return false;
}
}
GLenum GetBaseInternalFormat(GLint internalformat)
{
switch(internalformat)
{
// [OpenGL ES 3.0 Table 3.13]
case GL_R8: return GL_RED;
case GL_R8_SNORM: return GL_RED;
case GL_RG8: return GL_RG;
case GL_RG8_SNORM: return GL_RG;
case GL_RGB8: return GL_RGB;
case GL_RGB8_SNORM: return GL_RGB;
case GL_RGB565: return GL_RGB;
case GL_RGBA4: return GL_RGBA;
case GL_RGB5_A1: return GL_RGBA;
case GL_RGBA8: return GL_RGBA;
case GL_RGBA8_SNORM: return GL_RGBA;
case GL_RGB10_A2: return GL_RGBA;
case GL_RGB10_A2UI: return GL_RGBA;
case GL_SRGB8: return GL_RGB;
case GL_SRGB8_ALPHA8: return GL_RGBA;
case GL_R16F: return GL_RED;
case GL_RG16F: return GL_RG;
case GL_RGB16F: return GL_RGB;
case GL_RGBA16F: return GL_RGBA;
case GL_R32F: return GL_RED;
case GL_RG32F: return GL_RG;
case GL_RGB32F: return GL_RGB;
case GL_RGBA32F: return GL_RGBA;
case GL_R11F_G11F_B10F: return GL_RGB;
case GL_RGB9_E5: return GL_RGB;
case GL_R8I: return GL_RED;
case GL_R8UI: return GL_RED;
case GL_R16I: return GL_RED;
case GL_R16UI: return GL_RED;
case GL_R32I: return GL_RED;
case GL_R32UI: return GL_RED;
case GL_RG8I: return GL_RG;
case GL_RG8UI: return GL_RG;
case GL_RG16I: return GL_RG;
case GL_RG16UI: return GL_RG;
case GL_RG32I: return GL_RG;
case GL_RG32UI: return GL_RG;
case GL_RGB8I: return GL_RGB;
case GL_RGB8UI: return GL_RGB;
case GL_RGB16I: return GL_RGB;
case GL_RGB16UI: return GL_RGB;
case GL_RGB32I: return GL_RGB;
case GL_RGB32UI: return GL_RGB;
case GL_RGBA8I: return GL_RGBA;
case GL_RGBA8UI: return GL_RGBA;
case GL_RGBA16I: return GL_RGBA;
case GL_RGBA16UI: return GL_RGBA;
case GL_RGBA32I: return GL_RGBA;
case GL_RGBA32UI: return GL_RGBA;
// GL_EXT_texture_storage
case GL_ALPHA8_EXT: return GL_ALPHA;
case GL_LUMINANCE8_EXT: return GL_LUMINANCE;
case GL_LUMINANCE8_ALPHA8_EXT: return GL_LUMINANCE_ALPHA;
case GL_ALPHA32F_EXT: return GL_ALPHA;
case GL_LUMINANCE32F_EXT: return GL_LUMINANCE;
case GL_LUMINANCE_ALPHA32F_EXT: return GL_LUMINANCE_ALPHA;
case GL_ALPHA16F_EXT: return GL_ALPHA;
case GL_LUMINANCE16F_EXT: return GL_LUMINANCE;
case GL_LUMINANCE_ALPHA16F_EXT: return GL_LUMINANCE_ALPHA;
case GL_BGRA8_EXT: return GL_BGRA_EXT; // GL_APPLE_texture_format_BGRA8888
case GL_DEPTH_COMPONENT24: return GL_DEPTH_COMPONENT;
case GL_DEPTH_COMPONENT32_OES: return GL_DEPTH_COMPONENT;
case GL_DEPTH_COMPONENT32F: return GL_DEPTH_COMPONENT;
case GL_DEPTH_COMPONENT16: return GL_DEPTH_COMPONENT;
case GL_DEPTH32F_STENCIL8: return GL_DEPTH_STENCIL;
case GL_DEPTH24_STENCIL8: return GL_DEPTH_STENCIL;
case GL_STENCIL_INDEX8: return GL_STENCIL_INDEX_OES;
default:
UNREACHABLE(internalformat);
break;
}
return GL_NONE;
}
GLint GetSizedInternalFormat(GLint internalformat, GLenum type)
{
if(!IsUnsizedInternalFormat(internalformat))
{
return internalformat;
}
switch(internalformat)
{
case GL_RGBA:
switch(type)
{
case GL_UNSIGNED_BYTE: return GL_RGBA8;
case GL_BYTE: return GL_RGBA8_SNORM;
case GL_UNSIGNED_SHORT_4_4_4_4: return GL_RGBA4;
case GL_UNSIGNED_SHORT_5_5_5_1: return GL_RGB5_A1;
case GL_UNSIGNED_INT_2_10_10_10_REV: return GL_RGB10_A2;
case GL_FLOAT: return GL_RGBA32F;
case GL_HALF_FLOAT: return GL_RGBA16F;
case GL_HALF_FLOAT_OES: return GL_RGBA16F;
default: UNREACHABLE(type); return GL_NONE;
}
case GL_RGBA_INTEGER:
switch(type)
{
case GL_UNSIGNED_BYTE: return GL_RGBA8UI;
case GL_BYTE: return GL_RGBA8I;
case GL_UNSIGNED_SHORT: return GL_RGBA16UI;
case GL_SHORT: return GL_RGBA16I;
case GL_UNSIGNED_INT: return GL_RGBA32UI;
case GL_INT: return GL_RGBA32I;
case GL_UNSIGNED_INT_2_10_10_10_REV: return GL_RGB10_A2UI;
default: UNREACHABLE(type); return GL_NONE;
}
case GL_RGB:
switch(type)
{
case GL_UNSIGNED_BYTE: return GL_RGB8;
case GL_BYTE: return GL_RGB8_SNORM;
case GL_UNSIGNED_SHORT_5_6_5: return GL_RGB565;
case GL_UNSIGNED_INT_10F_11F_11F_REV: return GL_R11F_G11F_B10F;
case GL_UNSIGNED_INT_5_9_9_9_REV: return GL_RGB9_E5;
case GL_FLOAT: return GL_RGB32F;
case GL_HALF_FLOAT: return GL_RGB16F;
case GL_HALF_FLOAT_OES: return GL_RGB16F;
default: UNREACHABLE(type); return GL_NONE;
}
case GL_RGB_INTEGER:
switch(type)
{
case GL_UNSIGNED_BYTE: return GL_RGB8UI;
case GL_BYTE: return GL_RGB8I;
case GL_UNSIGNED_SHORT: return GL_RGB16UI;
case GL_SHORT: return GL_RGB16I;
case GL_UNSIGNED_INT: return GL_RGB32UI;
case GL_INT: return GL_RGB32I;
default: UNREACHABLE(type); return GL_NONE;
}
case GL_RG:
switch(type)
{
case GL_UNSIGNED_BYTE: return GL_RG8;
case GL_BYTE: return GL_RG8_SNORM;
case GL_FLOAT: return GL_RG32F;
case GL_HALF_FLOAT: return GL_RG16F;
case GL_HALF_FLOAT_OES: return GL_RG16F;
default: UNREACHABLE(type); return GL_NONE;
}
case GL_RG_INTEGER:
switch(type)
{
case GL_UNSIGNED_BYTE: return GL_RG8UI;
case GL_BYTE: return GL_RG8I;
case GL_UNSIGNED_SHORT: return GL_RG16UI;
case GL_SHORT: return GL_RG16I;
case GL_UNSIGNED_INT: return GL_RG32UI;
case GL_INT: return GL_RG32I;
default: UNREACHABLE(type); return GL_NONE;
}
case GL_RED:
switch(type)
{
case GL_UNSIGNED_BYTE: return GL_R8;
case GL_BYTE: return GL_R8_SNORM;
case GL_FLOAT: return GL_R32F;
case GL_HALF_FLOAT: return GL_R16F;
case GL_HALF_FLOAT_OES: return GL_R16F;
default: UNREACHABLE(type); return GL_NONE;
}
case GL_RED_INTEGER:
switch(type)
{
case GL_UNSIGNED_BYTE: return GL_R8UI;
case GL_BYTE: return GL_R8I;
case GL_UNSIGNED_SHORT: return GL_R16UI;
case GL_SHORT: return GL_R16I;
case GL_UNSIGNED_INT: return GL_R32UI;
case GL_INT: return GL_R32I;
default: UNREACHABLE(type); return GL_NONE;
}
case GL_LUMINANCE_ALPHA:
switch(type)
{
case GL_UNSIGNED_BYTE: return GL_LUMINANCE8_ALPHA8_EXT;
case GL_FLOAT: return GL_LUMINANCE_ALPHA32F_EXT;
case GL_HALF_FLOAT: return GL_LUMINANCE_ALPHA16F_EXT;
case GL_HALF_FLOAT_OES: return GL_LUMINANCE_ALPHA16F_EXT;
default: UNREACHABLE(type); return GL_NONE;
}
case GL_LUMINANCE:
switch(type)
{
case GL_UNSIGNED_BYTE: return GL_LUMINANCE8_EXT;
case GL_FLOAT: return GL_LUMINANCE32F_EXT;
case GL_HALF_FLOAT: return GL_LUMINANCE16F_EXT;
case GL_HALF_FLOAT_OES: return GL_LUMINANCE16F_EXT;
default: UNREACHABLE(type); return GL_NONE;
}
case GL_ALPHA:
switch(type)
{
case GL_UNSIGNED_BYTE: return GL_ALPHA8_EXT;
case GL_FLOAT: return GL_ALPHA32F_EXT;
case GL_HALF_FLOAT: return GL_ALPHA16F_EXT;
case GL_HALF_FLOAT_OES: return GL_ALPHA16F_EXT;
default: UNREACHABLE(type); return GL_NONE;
}
case GL_BGRA_EXT:
switch(type)
{
case GL_UNSIGNED_BYTE: return GL_BGRA8_EXT;
case GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT: // Only valid for glReadPixels calls.
case GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT: // Only valid for glReadPixels calls.
default: UNREACHABLE(type); return GL_NONE;
}
case GL_DEPTH_COMPONENT:
switch(type)
{
case GL_UNSIGNED_SHORT: return GL_DEPTH_COMPONENT16;
case GL_UNSIGNED_INT: return GL_DEPTH_COMPONENT32_OES;
case GL_FLOAT: return GL_DEPTH_COMPONENT32F;
default: UNREACHABLE(type); return GL_NONE;
}
case GL_DEPTH_STENCIL:
switch(type)
{
case GL_UNSIGNED_INT_24_8: return GL_DEPTH24_STENCIL8;
case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: return GL_DEPTH32F_STENCIL8;
default: UNREACHABLE(type); return GL_NONE;
}
// GL_OES_texture_stencil8
// case GL_STENCIL_INDEX_OES / GL_UNSIGNED_BYTE: return GL_STENCIL_INDEX8;
// GL_EXT_sRGB
// case GL_SRGB_EXT / GL_UNSIGNED_BYTE: return GL_SRGB8;
// case GL_SRGB_ALPHA_EXT / GL_UNSIGNED_BYTE: return GL_SRGB8_ALPHA8;
default:
UNREACHABLE(internalformat);
}
return GL_NONE;
}
sw::Format SelectInternalFormat(GLint format)
{
switch(format)
{
case GL_RGBA4: return sw::FORMAT_A8B8G8R8;
case GL_RGB5_A1: return sw::FORMAT_A8B8G8R8;
case GL_RGBA8: return sw::FORMAT_A8B8G8R8;
case GL_RGB565: return sw::FORMAT_R5G6B5;
case GL_RGB8: return sw::FORMAT_X8B8G8R8;
case GL_DEPTH_COMPONENT32F: return sw::FORMAT_D32F_LOCKABLE;
case GL_DEPTH_COMPONENT16: return sw::FORMAT_D32F_LOCKABLE;
case GL_DEPTH_COMPONENT24: return sw::FORMAT_D32F_LOCKABLE;
case GL_DEPTH_COMPONENT32_OES: return sw::FORMAT_D32F_LOCKABLE;
case GL_DEPTH24_STENCIL8: return sw::FORMAT_D32FS8_TEXTURE;
case GL_DEPTH32F_STENCIL8: return sw::FORMAT_D32FS8_TEXTURE;
case GL_STENCIL_INDEX8: return sw::FORMAT_S8;
case GL_R8: return sw::FORMAT_R8;
case GL_RG8: return sw::FORMAT_G8R8;
case GL_R8I: return sw::FORMAT_R8I;
case GL_RG8I: return sw::FORMAT_G8R8I;
case GL_RGB8I: return sw::FORMAT_X8B8G8R8I;
case GL_RGBA8I: return sw::FORMAT_A8B8G8R8I;
case GL_R8UI: return sw::FORMAT_R8UI;
case GL_RG8UI: return sw::FORMAT_G8R8UI;
case GL_RGB8UI: return sw::FORMAT_X8B8G8R8UI;
case GL_RGBA8UI: return sw::FORMAT_A8B8G8R8UI;
case GL_R16I: return sw::FORMAT_R16I;
case GL_RG16I: return sw::FORMAT_G16R16I;
case GL_RGB16I: return sw::FORMAT_X16B16G16R16I;
case GL_RGBA16I: return sw::FORMAT_A16B16G16R16I;
case GL_R16UI: return sw::FORMAT_R16UI;
case GL_RG16UI: return sw::FORMAT_G16R16UI;
case GL_RGB16UI: return sw::FORMAT_X16B16G16R16UI;
case GL_RGBA16UI: return sw::FORMAT_A16B16G16R16UI;
case GL_R32I: return sw::FORMAT_R32I;
case GL_RG32I: return sw::FORMAT_G32R32I;
case GL_RGB32I: return sw::FORMAT_X32B32G32R32I;
case GL_RGBA32I: return sw::FORMAT_A32B32G32R32I;
case GL_R32UI: return sw::FORMAT_R32UI;
case GL_RG32UI: return sw::FORMAT_G32R32UI;
case GL_RGB32UI: return sw::FORMAT_X32B32G32R32UI;
case GL_RGBA32UI: return sw::FORMAT_A32B32G32R32UI;
case GL_R16F: return sw::FORMAT_R16F;
case GL_RG16F: return sw::FORMAT_G16R16F;
case GL_R11F_G11F_B10F: return sw::FORMAT_X16B16G16R16F_UNSIGNED;
case GL_RGB16F: return sw::FORMAT_X16B16G16R16F;
case GL_RGBA16F: return sw::FORMAT_A16B16G16R16F;
case GL_R32F: return sw::FORMAT_R32F;
case GL_RG32F: return sw::FORMAT_G32R32F;
case GL_RGB32F: return sw::FORMAT_X32B32G32R32F;
case GL_RGBA32F: return sw::FORMAT_A32B32G32R32F;
case GL_RGB10_A2: return sw::FORMAT_A2B10G10R10;
case GL_RGB10_A2UI: return sw::FORMAT_A2B10G10R10UI;
case GL_SRGB8: return sw::FORMAT_SRGB8_X8;
case GL_SRGB8_ALPHA8: return sw::FORMAT_SRGB8_A8;
case GL_ETC1_RGB8_OES: return sw::FORMAT_ETC1;
case GL_COMPRESSED_R11_EAC: return sw::FORMAT_R11_EAC;
case GL_COMPRESSED_SIGNED_R11_EAC: return sw::FORMAT_SIGNED_R11_EAC;
case GL_COMPRESSED_RG11_EAC: return sw::FORMAT_RG11_EAC;
case GL_COMPRESSED_SIGNED_RG11_EAC: return sw::FORMAT_SIGNED_RG11_EAC;
case GL_COMPRESSED_RGB8_ETC2: return sw::FORMAT_RGB8_ETC2;
case GL_COMPRESSED_SRGB8_ETC2: return sw::FORMAT_SRGB8_ETC2;
case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2: return sw::FORMAT_RGB8_PUNCHTHROUGH_ALPHA1_ETC2;
case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2: return sw::FORMAT_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2;
case GL_COMPRESSED_RGBA8_ETC2_EAC: return sw::FORMAT_RGBA8_ETC2_EAC;
case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: return sw::FORMAT_SRGB8_ALPHA8_ETC2_EAC;
case GL_COMPRESSED_RGBA_ASTC_4x4_KHR: return sw::FORMAT_RGBA_ASTC_4x4_KHR;
case GL_COMPRESSED_RGBA_ASTC_5x4_KHR: return sw::FORMAT_RGBA_ASTC_5x4_KHR;
case GL_COMPRESSED_RGBA_ASTC_5x5_KHR: return sw::FORMAT_RGBA_ASTC_5x5_KHR;
case GL_COMPRESSED_RGBA_ASTC_6x5_KHR: return sw::FORMAT_RGBA_ASTC_6x5_KHR;
case GL_COMPRESSED_RGBA_ASTC_6x6_KHR: return sw::FORMAT_RGBA_ASTC_6x6_KHR;
case GL_COMPRESSED_RGBA_ASTC_8x5_KHR: return sw::FORMAT_RGBA_ASTC_8x5_KHR;
case GL_COMPRESSED_RGBA_ASTC_8x6_KHR: return sw::FORMAT_RGBA_ASTC_8x6_KHR;
case GL_COMPRESSED_RGBA_ASTC_8x8_KHR: return sw::FORMAT_RGBA_ASTC_8x8_KHR;
case GL_COMPRESSED_RGBA_ASTC_10x5_KHR: return sw::FORMAT_RGBA_ASTC_10x5_KHR;
case GL_COMPRESSED_RGBA_ASTC_10x6_KHR: return sw::FORMAT_RGBA_ASTC_10x6_KHR;
case GL_COMPRESSED_RGBA_ASTC_10x8_KHR: return sw::FORMAT_RGBA_ASTC_10x8_KHR;
case GL_COMPRESSED_RGBA_ASTC_10x10_KHR: return sw::FORMAT_RGBA_ASTC_10x10_KHR;
case GL_COMPRESSED_RGBA_ASTC_12x10_KHR: return sw::FORMAT_RGBA_ASTC_12x10_KHR;
case GL_COMPRESSED_RGBA_ASTC_12x12_KHR: return sw::FORMAT_RGBA_ASTC_12x12_KHR;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR: return sw::FORMAT_SRGB8_ALPHA8_ASTC_4x4_KHR;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR: return sw::FORMAT_SRGB8_ALPHA8_ASTC_5x4_KHR;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR: return sw::FORMAT_SRGB8_ALPHA8_ASTC_5x5_KHR;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR: return sw::FORMAT_SRGB8_ALPHA8_ASTC_6x5_KHR;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR: return sw::FORMAT_SRGB8_ALPHA8_ASTC_6x6_KHR;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR: return sw::FORMAT_SRGB8_ALPHA8_ASTC_8x5_KHR;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR: return sw::FORMAT_SRGB8_ALPHA8_ASTC_8x6_KHR;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR: return sw::FORMAT_SRGB8_ALPHA8_ASTC_8x8_KHR;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR: return sw::FORMAT_SRGB8_ALPHA8_ASTC_10x5_KHR;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR: return sw::FORMAT_SRGB8_ALPHA8_ASTC_10x6_KHR;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR: return sw::FORMAT_SRGB8_ALPHA8_ASTC_10x8_KHR;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR: return sw::FORMAT_SRGB8_ALPHA8_ASTC_10x10_KHR;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR: return sw::FORMAT_SRGB8_ALPHA8_ASTC_12x10_KHR;
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR: return sw::FORMAT_SRGB8_ALPHA8_ASTC_12x12_KHR;
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: return sw::FORMAT_DXT1;
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: return sw::FORMAT_DXT1;
case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: return sw::FORMAT_DXT3;
case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: return sw::FORMAT_DXT5;
case GL_ALPHA32F_EXT: return sw::FORMAT_A32F;
case GL_LUMINANCE32F_EXT: return sw::FORMAT_L32F;
case GL_LUMINANCE_ALPHA32F_EXT: return sw::FORMAT_A32L32F;
case GL_RGB9_E5: return sw::FORMAT_X16B16G16R16F_UNSIGNED;
case GL_ALPHA16F_EXT: return sw::FORMAT_A16F;
case GL_LUMINANCE16F_EXT: return sw::FORMAT_L16F;
case GL_LUMINANCE_ALPHA16F_EXT: return sw::FORMAT_A16L16F;
case GL_R8_SNORM: return sw::FORMAT_R8_SNORM;
case GL_RG8_SNORM: return sw::FORMAT_G8R8_SNORM;
case GL_RGB8_SNORM: return sw::FORMAT_X8B8G8R8_SNORM;
case GL_RGBA8_SNORM: return sw::FORMAT_A8B8G8R8_SNORM;
case GL_LUMINANCE8_EXT: return sw::FORMAT_L8;
case GL_LUMINANCE8_ALPHA8_EXT: return sw::FORMAT_A8L8;
case GL_BGRA8_EXT: return sw::FORMAT_A8R8G8B8;
case GL_ALPHA8_EXT: return sw::FORMAT_A8;
case SW_YV12_BT601: return sw::FORMAT_YV12_BT601;
case SW_YV12_BT709: return sw::FORMAT_YV12_BT709;
case SW_YV12_JFIF: return sw::FORMAT_YV12_JFIF;
default:
UNREACHABLE(format); // Not a sized internal format.
return sw::FORMAT_NULL;
}
}
// Returns the size, in bytes, of a single client-side pixel.
// OpenGL ES 3.0.5 table 3.2.
static int ComputePixelSize(GLenum format, GLenum type)
{
switch(format)
{
case GL_RED:
case GL_RED_INTEGER:
case GL_ALPHA:
case GL_LUMINANCE:
switch(type)
{
case GL_BYTE: return 1;
case GL_UNSIGNED_BYTE: return 1;
case GL_FLOAT: return 4;
case GL_HALF_FLOAT: return 2;
case GL_HALF_FLOAT_OES: return 2;
case GL_SHORT: return 2;
case GL_UNSIGNED_SHORT: return 2;
case GL_INT: return 4;
case GL_UNSIGNED_INT: return 4;
default: UNREACHABLE(type);
}
break;
case GL_RG:
case GL_RG_INTEGER:
case GL_LUMINANCE_ALPHA:
switch(type)
{
case GL_BYTE: return 2;
case GL_UNSIGNED_BYTE: return 2;
case GL_FLOAT: return 8;
case GL_HALF_FLOAT: return 4;
case GL_HALF_FLOAT_OES: return 4;
case GL_SHORT: return 4;
case GL_UNSIGNED_SHORT: return 4;
case GL_INT: return 8;
case GL_UNSIGNED_INT: return 8;
default: UNREACHABLE(type);
}
break;
case GL_RGB:
case GL_RGB_INTEGER:
switch(type)
{
case GL_BYTE: return 3;
case GL_UNSIGNED_BYTE: return 3;
case GL_UNSIGNED_SHORT_5_6_5: return 2;
case GL_UNSIGNED_INT_10F_11F_11F_REV: return 4;
case GL_UNSIGNED_INT_5_9_9_9_REV: return 4;
case GL_FLOAT: return 12;
case GL_HALF_FLOAT: return 6;
case GL_HALF_FLOAT_OES: return 6;
case GL_SHORT: return 6;
case GL_UNSIGNED_SHORT: return 6;
case GL_INT: return 12;
case GL_UNSIGNED_INT: return 12;
default: UNREACHABLE(type);
}
break;
case GL_RGBA:
case GL_RGBA_INTEGER:
case GL_BGRA_EXT:
switch(type)
{
case GL_BYTE: return 4;
case GL_UNSIGNED_BYTE: return 4;
case GL_UNSIGNED_SHORT_4_4_4_4: return 2;
case GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT: return 2;
case GL_UNSIGNED_SHORT_5_5_5_1: return 2;
case GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT: return 2;
case GL_UNSIGNED_INT_2_10_10_10_REV: return 4;
case GL_FLOAT: return 16;
case GL_HALF_FLOAT: return 8;
case GL_HALF_FLOAT_OES: return 8;
case GL_SHORT: return 8;
case GL_UNSIGNED_SHORT: return 8;
case GL_INT: return 16;
case GL_UNSIGNED_INT: return 16;
default: UNREACHABLE(type);
}
break;
case GL_DEPTH_COMPONENT:
switch(type)
{
case GL_FLOAT: return 4;
case GL_UNSIGNED_SHORT: return 2;
case GL_UNSIGNED_INT: return 4;
default: UNREACHABLE(type);
}
break;
case GL_DEPTH_STENCIL:
switch(type)
{
case GL_UNSIGNED_INT_24_8: return 4;
case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: return 8;
default: UNREACHABLE(type);
}
break;
default:
UNREACHABLE(format);
}
return 0;
}
GLsizei ComputePitch(GLsizei width, GLenum format, GLenum type, GLint alignment)
{
ASSERT(alignment > 0 && sw::isPow2(alignment));
GLsizei rawPitch = ComputePixelSize(format, type) * width;
return (rawPitch + alignment - 1) & ~(alignment - 1);
}
size_t ComputePackingOffset(GLenum format, GLenum type, GLsizei width, GLsizei height, const gl::PixelStorageModes &storageModes)
{
GLsizei pitchB = ComputePitch(width, format, type, storageModes.alignment);
return (storageModes.skipImages * height + storageModes.skipRows) * pitchB + storageModes.skipPixels * ComputePixelSize(format, type);
}
inline GLsizei ComputeCompressedPitch(GLsizei width, GLenum format)
{
return ComputeCompressedSize(width, 1, format);
}
inline int GetNumCompressedBlocks(int w, int h, int blockSizeX, int blockSizeY)
{
return ((w + blockSizeX - 1) / blockSizeX) * ((h + blockSizeY - 1) / blockSizeY);
}
GLsizei ComputeCompressedSize(GLsizei width, GLsizei height, GLenum format)
{
switch(format)
{
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
case GL_ETC1_RGB8_OES:
case GL_COMPRESSED_R11_EAC:
case GL_COMPRESSED_SIGNED_R11_EAC:
case GL_COMPRESSED_RGB8_ETC2:
case GL_COMPRESSED_SRGB8_ETC2:
case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
return 8 * GetNumCompressedBlocks(width, height, 4, 4);
case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE:
case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE:
case GL_COMPRESSED_RG11_EAC:
case GL_COMPRESSED_SIGNED_RG11_EAC:
case GL_COMPRESSED_RGBA8_ETC2_EAC:
case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
case GL_COMPRESSED_RGBA_ASTC_4x4_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR:
return 16 * GetNumCompressedBlocks(width, height, 4, 4);
case GL_COMPRESSED_RGBA_ASTC_5x4_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR:
return 16 * GetNumCompressedBlocks(width, height, 5, 4);
case GL_COMPRESSED_RGBA_ASTC_5x5_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR:
return 16 * GetNumCompressedBlocks(width, height, 5, 5);
case GL_COMPRESSED_RGBA_ASTC_6x5_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR:
return 16 * GetNumCompressedBlocks(width, height, 6, 5);
case GL_COMPRESSED_RGBA_ASTC_6x6_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR:
return 16 * GetNumCompressedBlocks(width, height, 6, 6);
case GL_COMPRESSED_RGBA_ASTC_8x5_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR:
return 16 * GetNumCompressedBlocks(width, height, 8, 5);
case GL_COMPRESSED_RGBA_ASTC_8x6_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR:
return 16 * GetNumCompressedBlocks(width, height, 8, 6);
case GL_COMPRESSED_RGBA_ASTC_8x8_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR:
return 16 * GetNumCompressedBlocks(width, height, 8, 8);
case GL_COMPRESSED_RGBA_ASTC_10x5_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR:
return 16 * GetNumCompressedBlocks(width, height, 10, 5);
case GL_COMPRESSED_RGBA_ASTC_10x6_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR:
return 16 * GetNumCompressedBlocks(width, height, 10, 6);
case GL_COMPRESSED_RGBA_ASTC_10x8_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR:
return 16 * GetNumCompressedBlocks(width, height, 10, 8);
case GL_COMPRESSED_RGBA_ASTC_10x10_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR:
return 16 * GetNumCompressedBlocks(width, height, 10, 10);
case GL_COMPRESSED_RGBA_ASTC_12x10_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR:
return 16 * GetNumCompressedBlocks(width, height, 12, 10);
case GL_COMPRESSED_RGBA_ASTC_12x12_KHR:
case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR:
return 16 * GetNumCompressedBlocks(width, height, 12, 12);
default:
UNREACHABLE(format);
return 0;
}
}
}
namespace egl
{
// We assume the data can be indexed with a signed 32-bit offset, including any padding,
// so we must keep the image size reasonable. 1 GiB ought to be enough for anybody.
enum { IMPLEMENTATION_MAX_IMAGE_SIZE_BYTES = 0x40000000 };
enum TransferType
{
Bytes,
RGB8toRGBX8,
RGB16toRGBX16,
RGB32toRGBX32,
RGB32FtoRGBX32F,
RGB16FtoRGBX16F,
RGBA4toRGBA8,
RGBA5_A1toRGBA8,
R11G11B10FtoRGBX16F,
RGB9_E5FtoRGBX16F,
D16toD32F,
D24X8toD32F,
D32toD32F,
D32FtoD32F_CLAMPED,
D32FX32toD32F,
X24S8toS8,
X56S8toS8,
RGBA1010102toRGBA8,
RGB8toRGB565,
R32FtoR16F,
RG32FtoRG16F,
RGB32FtoRGB16F,
RGB32FtoRGB16F_UNSIGNED,
RGBA32FtoRGBA16F
};
template<TransferType transferType>
void TransferRow(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes);
template<>
void TransferRow<Bytes>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
memcpy(dest, source, width * bytes);
}
template<>
void TransferRow<RGB8toRGBX8>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
unsigned char *destB = dest;
for(int x = 0; x < width; x++)
{
destB[4 * x + 0] = source[x * 3 + 0];
destB[4 * x + 1] = source[x * 3 + 1];
destB[4 * x + 2] = source[x * 3 + 2];
destB[4 * x + 3] = 0xFF;
}
}
template<>
void TransferRow<RGB16toRGBX16>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const unsigned short *sourceS = reinterpret_cast<const unsigned short*>(source);
unsigned short *destS = reinterpret_cast<unsigned short*>(dest);
for(int x = 0; x < width; x++)
{
destS[4 * x + 0] = sourceS[x * 3 + 0];
destS[4 * x + 1] = sourceS[x * 3 + 1];
destS[4 * x + 2] = sourceS[x * 3 + 2];
destS[4 * x + 3] = 0xFFFF;
}
}
template<>
void TransferRow<RGB32toRGBX32>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const unsigned int *sourceI = reinterpret_cast<const unsigned int*>(source);
unsigned int *destI = reinterpret_cast<unsigned int*>(dest);
for(int x = 0; x < width; x++)
{
destI[4 * x + 0] = sourceI[x * 3 + 0];
destI[4 * x + 1] = sourceI[x * 3 + 1];
destI[4 * x + 2] = sourceI[x * 3 + 2];
destI[4 * x + 3] = 0xFFFFFFFF;
}
}
template<>
void TransferRow<RGB32FtoRGBX32F>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const float *sourceF = reinterpret_cast<const float*>(source);
float *destF = reinterpret_cast<float*>(dest);
for(int x = 0; x < width; x++)
{
destF[4 * x + 0] = sourceF[x * 3 + 0];
destF[4 * x + 1] = sourceF[x * 3 + 1];
destF[4 * x + 2] = sourceF[x * 3 + 2];
destF[4 * x + 3] = 1.0f;
}
}
template<>
void TransferRow<RGB16FtoRGBX16F>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const unsigned short *sourceH = reinterpret_cast<const unsigned short*>(source);
unsigned short *destH = reinterpret_cast<unsigned short*>(dest);
for(int x = 0; x < width; x++)
{
destH[4 * x + 0] = sourceH[x * 3 + 0];
destH[4 * x + 1] = sourceH[x * 3 + 1];
destH[4 * x + 2] = sourceH[x * 3 + 2];
destH[4 * x + 3] = 0x3C00; // SEEEEEMMMMMMMMMM, S = 0, E = 15, M = 0: 16-bit floating-point representation of 1.0
}
}
template<>
void TransferRow<RGBA4toRGBA8>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const unsigned short *source4444 = reinterpret_cast<const unsigned short*>(source);
unsigned char *dest4444 = dest;
for(int x = 0; x < width; x++)
{
unsigned short rgba = source4444[x];
dest4444[4 * x + 0] = ((rgba & 0xF000) >> 8) | ((rgba & 0xF000) >> 12);
dest4444[4 * x + 1] = ((rgba & 0x0F00) >> 4) | ((rgba & 0x0F00) >> 8);
dest4444[4 * x + 2] = ((rgba & 0x00F0) << 0) | ((rgba & 0x00F0) >> 4);
dest4444[4 * x + 3] = ((rgba & 0x000F) << 4) | ((rgba & 0x000F) >> 0);
}
}
template<>
void TransferRow<RGBA5_A1toRGBA8>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const unsigned short *source5551 = reinterpret_cast<const unsigned short*>(source);
unsigned char *dest8888 = dest;
for(int x = 0; x < width; x++)
{
unsigned short rgba = source5551[x];
dest8888[4 * x + 0] = ((rgba & 0xF800) >> 8) | ((rgba & 0xF800) >> 13);
dest8888[4 * x + 1] = ((rgba & 0x07C0) >> 3) | ((rgba & 0x07C0) >> 8);
dest8888[4 * x + 2] = ((rgba & 0x003E) << 2) | ((rgba & 0x003E) >> 3);
dest8888[4 * x + 3] = (rgba & 0x0001) ? 0xFF : 0;
}
}
template<>
void TransferRow<RGBA1010102toRGBA8>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const unsigned int *source1010102 = reinterpret_cast<const unsigned int*>(source);
unsigned char *dest8888 = dest;
for(int x = 0; x < width; x++)
{
unsigned int rgba = source1010102[x];
dest8888[4 * x + 0] = sw::unorm<8>((rgba & 0x000003FF) * (1.0f / 0x000003FF));
dest8888[4 * x + 1] = sw::unorm<8>((rgba & 0x000FFC00) * (1.0f / 0x000FFC00));
dest8888[4 * x + 2] = sw::unorm<8>((rgba & 0x3FF00000) * (1.0f / 0x3FF00000));
dest8888[4 * x + 3] = sw::unorm<8>((rgba & 0xC0000000) * (1.0f / 0xC0000000));
}
}
template<>
void TransferRow<RGB8toRGB565>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
unsigned short *dest565 = reinterpret_cast<unsigned short*>(dest);
for(int x = 0; x < width; x++)
{
float r = source[3 * x + 0] * (1.0f / 0xFF);
float g = source[3 * x + 1] * (1.0f / 0xFF);
float b = source[3 * x + 2] * (1.0f / 0xFF);
dest565[x] = (sw::unorm<5>(r) << 11) | (sw::unorm<6>(g) << 5) | (sw::unorm<5>(b) << 0);
}
}
template<>
void TransferRow<R11G11B10FtoRGBX16F>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const sw::R11G11B10F *sourceRGB = reinterpret_cast<const sw::R11G11B10F*>(source);
sw::half *destF = reinterpret_cast<sw::half*>(dest);
for(int x = 0; x < width; x++, sourceRGB++, destF += 4)
{
sourceRGB->toRGB16F(destF);
destF[3] = 1.0f;
}
}
template<>
void TransferRow<RGB9_E5FtoRGBX16F>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const sw::RGB9E5 *sourceRGB = reinterpret_cast<const sw::RGB9E5*>(source);
sw::half *destF = reinterpret_cast<sw::half*>(dest);
for(int x = 0; x < width; x++, sourceRGB++, destF += 4)
{
sourceRGB->toRGB16F(destF);
destF[3] = 1.0f;
}
}
template<>
void TransferRow<R32FtoR16F>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const float *source32F = reinterpret_cast<const float*>(source);
sw::half *dest16F = reinterpret_cast<sw::half*>(dest);
for(int x = 0; x < width; x++)
{
dest16F[x] = source32F[x];
}
}
template<>
void TransferRow<RG32FtoRG16F>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const float *source32F = reinterpret_cast<const float*>(source);
sw::half *dest16F = reinterpret_cast<sw::half*>(dest);
for(int x = 0; x < width; x++)
{
dest16F[2 * x + 0] = source32F[2 * x + 0];
dest16F[2 * x + 1] = source32F[2 * x + 1];
}
}
template<>
void TransferRow<RGB32FtoRGB16F>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const float *source32F = reinterpret_cast<const float*>(source);
sw::half *dest16F = reinterpret_cast<sw::half*>(dest);
for(int x = 0; x < width; x++)
{
dest16F[4 * x + 0] = source32F[3 * x + 0];
dest16F[4 * x + 1] = source32F[3 * x + 1];
dest16F[4 * x + 2] = source32F[3 * x + 2];
dest16F[4 * x + 3] = 1.0f;
}
}
template<>
void TransferRow<RGB32FtoRGB16F_UNSIGNED>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const float *source32F = reinterpret_cast<const float*>(source);
sw::half *dest16F = reinterpret_cast<sw::half*>(dest);
for(int x = 0; x < width; x++)
{
dest16F[4 * x + 0] = std::max(source32F[3 * x + 0], 0.0f);
dest16F[4 * x + 1] = std::max(source32F[3 * x + 1], 0.0f);
dest16F[4 * x + 2] = std::max(source32F[3 * x + 2], 0.0f);
dest16F[4 * x + 3] = 1.0f;
}
}
template<>
void TransferRow<RGBA32FtoRGBA16F>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const float *source32F = reinterpret_cast<const float*>(source);
sw::half *dest16F = reinterpret_cast<sw::half*>(dest);
for(int x = 0; x < width; x++)
{
dest16F[4 * x + 0] = source32F[4 * x + 0];
dest16F[4 * x + 1] = source32F[4 * x + 1];
dest16F[4 * x + 2] = source32F[4 * x + 2];
dest16F[4 * x + 3] = source32F[4 * x + 3];
}
}
template<>
void TransferRow<D16toD32F>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const unsigned short *sourceD16 = reinterpret_cast<const unsigned short*>(source);
float *destF = reinterpret_cast<float*>(dest);
for(int x = 0; x < width; x++)
{
destF[x] = (float)sourceD16[x] / 0xFFFF;
}
}
template<>
void TransferRow<D24X8toD32F>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const unsigned int *sourceD24 = reinterpret_cast<const unsigned int*>(source);
float *destF = reinterpret_cast<float*>(dest);
for(int x = 0; x < width; x++)
{
destF[x] = (float)(sourceD24[x] & 0xFFFFFF00) / 0xFFFFFF00;
}
}
template<>
void TransferRow<D32toD32F>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const unsigned int *sourceD32 = reinterpret_cast<const unsigned int*>(source);
float *destF = reinterpret_cast<float*>(dest);
for(int x = 0; x < width; x++)
{
destF[x] = (float)sourceD32[x] / 0xFFFFFFFF;
}
}
template<>
void TransferRow<D32FtoD32F_CLAMPED>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const float *sourceF = reinterpret_cast<const float*>(source);
float *destF = reinterpret_cast<float*>(dest);
for(int x = 0; x < width; x++)
{
destF[x] = sw::clamp(sourceF[x], 0.0f, 1.0f);
}
}
template<>
void TransferRow<D32FX32toD32F>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
struct D32FS8 { float depth32f; unsigned int stencil24_8; };
const D32FS8 *sourceD32FS8 = reinterpret_cast<const D32FS8*>(source);
float *destF = reinterpret_cast<float*>(dest);
for(int x = 0; x < width; x++)
{
destF[x] = sw::clamp(sourceD32FS8[x].depth32f, 0.0f, 1.0f);
}
}
template<>
void TransferRow<X24S8toS8>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
const unsigned int *sourceI = reinterpret_cast<const unsigned int*>(source);
unsigned char *destI = dest;
for(int x = 0; x < width; x++)
{
destI[x] = static_cast<unsigned char>(sourceI[x] & 0x000000FF); // FIXME: Quad layout
}
}
template<>
void TransferRow<X56S8toS8>(unsigned char *dest, const unsigned char *source, GLsizei width, GLsizei bytes)
{
struct D32FS8 { float depth32f; unsigned int stencil24_8; };
const D32FS8 *sourceD32FS8 = reinterpret_cast<const D32FS8*>(source);
unsigned char *destI = dest;
for(int x = 0; x < width; x++)
{
destI[x] = static_cast<unsigned char>(sourceD32FS8[x].stencil24_8 & 0x000000FF); // FIXME: Quad layout
}
}
struct Rectangle
{
GLsizei bytes;
GLsizei width;
GLsizei height;
GLsizei depth;
int inputPitch;
int inputHeight;
int destPitch;
GLsizei destSlice;
};
template<TransferType transferType>
void Transfer(void *buffer, const void *input, const Rectangle &rect)
{
for(int z = 0; z < rect.depth; z++)
{
const unsigned char *inputStart = static_cast<const unsigned char*>(input) + (z * rect.inputPitch * rect.inputHeight);
unsigned char *destStart = static_cast<unsigned char*>(buffer) + (z * rect.destSlice);
for(int y = 0; y < rect.height; y++)
{
const unsigned char *source = inputStart + y * rect.inputPitch;
unsigned char *dest = destStart + y * rect.destPitch;
TransferRow<transferType>(dest, source, rect.width, rect.bytes);
}
}
}
class ImageImplementation : public Image
{
public:
ImageImplementation(Texture *parentTexture, GLsizei width, GLsizei height, GLint internalformat)
: Image(parentTexture, width, height, internalformat) {}
ImageImplementation(Texture *parentTexture, GLsizei width, GLsizei height, GLsizei depth, int border, GLint internalformat)
: Image(parentTexture, width, height, depth, border, internalformat) {}
ImageImplementation(GLsizei width, GLsizei height, GLint internalformat, int pitchP)
: Image(width, height, internalformat, pitchP) {}
ImageImplementation(GLsizei width, GLsizei height, GLint internalformat, int multiSampleDepth, bool lockable)
: Image(width, height, internalformat, multiSampleDepth, lockable) {}
~ImageImplementation() override
{
sync(); // Wait for any threads that use this image to finish.
}
void *lockInternal(int x, int y, int z, sw::Lock lock, sw::Accessor client) override
{
return Image::lockInternal(x, y, z, lock, client);
}
void unlockInternal() override
{
return Image::unlockInternal();
}
void release() override
{
return Image::release();
}
};
Image *Image::create(Texture *parentTexture, GLsizei width, GLsizei height, GLint internalformat)
{
if(size(width, height, 1, 0, 1, internalformat) > IMPLEMENTATION_MAX_IMAGE_SIZE_BYTES)
{
return nullptr;
}
return new ImageImplementation(parentTexture, width, height, internalformat);
}
Image *Image::create(Texture *parentTexture, GLsizei width, GLsizei height, GLsizei depth, int border, GLint internalformat)
{
if(size(width, height, depth, border, 1, internalformat) > IMPLEMENTATION_MAX_IMAGE_SIZE_BYTES)
{
return nullptr;
}
return new ImageImplementation(parentTexture, width, height, depth, border, internalformat);
}
Image *Image::create(GLsizei width, GLsizei height, GLint internalformat, int pitchP)
{
if(size(pitchP, height, 1, 0, 1, internalformat) > IMPLEMENTATION_MAX_IMAGE_SIZE_BYTES)
{
return nullptr;
}
return new ImageImplementation(width, height, internalformat, pitchP);
}
Image *Image::create(GLsizei width, GLsizei height, GLint internalformat, int multiSampleDepth, bool lockable)
{
if(size(width, height, 1, 0, multiSampleDepth, internalformat) > IMPLEMENTATION_MAX_IMAGE_SIZE_BYTES)
{
return nullptr;
}
return new ImageImplementation(width, height, internalformat, multiSampleDepth, lockable);
}
size_t Image::size(int width, int height, int depth, int border, int samples, GLint internalformat)
{
return sw::Surface::size(width, height, depth, border, samples, gl::SelectInternalFormat(internalformat));
}
int ClientBuffer::getWidth() const
{
return width;
}
int ClientBuffer::getHeight() const
{
return height;
}
sw::Format ClientBuffer::getFormat() const
{
return format;
}
size_t ClientBuffer::getPlane() const
{
return plane;
}
int ClientBuffer::pitchP() const
{
#if defined(__APPLE__)
if(buffer)
{
IOSurfaceRef ioSurface = reinterpret_cast<IOSurfaceRef>(buffer);
int pitchB = static_cast<int>(IOSurfaceGetBytesPerRowOfPlane(ioSurface, plane));
int bytesPerPixel = sw::Surface::bytes(format);
ASSERT((pitchB % bytesPerPixel) == 0);
return pitchB / bytesPerPixel;
}
return 0;
#else
return sw::Surface::pitchP(width, 0, format, false);
#endif
}
void ClientBuffer::retain()
{
#if defined(__APPLE__)
if(buffer)
{
CFRetain(reinterpret_cast<IOSurfaceRef>(buffer));
}
#endif
}
void ClientBuffer::release()
{
#if defined(__APPLE__)
if(buffer)
{
CFRelease(reinterpret_cast<IOSurfaceRef>(buffer));
buffer = nullptr;
}
#endif
}
void* ClientBuffer::lock(int x, int y, int z)
{
#if defined(__APPLE__)
if(buffer)
{
IOSurfaceRef ioSurface = reinterpret_cast<IOSurfaceRef>(buffer);
IOSurfaceLock(ioSurface, 0, nullptr);
void* pixels = IOSurfaceGetBaseAddressOfPlane(ioSurface, plane);
int bytes = sw::Surface::bytes(format);
int pitchB = static_cast<int>(IOSurfaceGetBytesPerRowOfPlane(ioSurface, plane));
int sliceB = static_cast<int>(IOSurfaceGetHeightOfPlane(ioSurface, plane)) * pitchB;
return (unsigned char*)pixels + x * bytes + y * pitchB + z * sliceB;
}
return nullptr;
#else
int bytes = sw::Surface::bytes(format);
int pitchB = sw::Surface::pitchB(width, 0, format, false);
int sliceB = height * pitchB;
return (unsigned char*)buffer + x * bytes + y * pitchB + z * sliceB;
#endif
}
void ClientBuffer::unlock()
{
#if defined(__APPLE__)
if(buffer)
{
IOSurfaceRef ioSurface = reinterpret_cast<IOSurfaceRef>(buffer);
IOSurfaceUnlock(ioSurface, 0, nullptr);
}
#endif
}
bool ClientBuffer::requiresSync() const
{
#if defined(__APPLE__)
return true;
#else
return false;
#endif
}
class ClientBufferImage : public egl::Image
{
public:
explicit ClientBufferImage(const ClientBuffer& clientBuffer) :
egl::Image(clientBuffer.getWidth(),
clientBuffer.getHeight(),
getClientBufferInternalFormat(clientBuffer.getFormat()),
clientBuffer.pitchP()),
clientBuffer(clientBuffer)
{
shared = false;
this->clientBuffer.retain();
}
private:
ClientBuffer clientBuffer;
~ClientBufferImage() override
{
sync(); // Wait for any threads that use this image to finish.
clientBuffer.release();
}
static GLint getClientBufferInternalFormat(sw::Format format)
{
switch(format)
{
case sw::FORMAT_R8: return GL_R8;
case sw::FORMAT_G8R8: return GL_RG8;
case sw::FORMAT_A8R8G8B8: return GL_BGRA8_EXT;
case sw::FORMAT_R16UI: return GL_R16UI;
case sw::FORMAT_A16B16G16R16F: return GL_RGBA16F;
default: return GL_NONE;
}
}
void *lockInternal(int x, int y, int z, sw::Lock lock, sw::Accessor client) override
{
LOGLOCK("image=%p op=%s.swsurface lock=%d", this, __FUNCTION__, lock);
// Always do this for reference counting.
void *data = sw::Surface::lockInternal(x, y, z, lock, client);
if(x != 0 || y != 0 || z != 0)
{
LOGLOCK("badness: %s called with unsupported parms: image=%p x=%d y=%d z=%d", __FUNCTION__, this, x, y, z);
}
LOGLOCK("image=%p op=%s.ani lock=%d", this, __FUNCTION__, lock);
// Lock the ClientBuffer and use its address.
data = clientBuffer.lock(x, y, z);
if(lock == sw::LOCK_UNLOCKED)
{
// We're never going to get a corresponding unlock, so unlock
// immediately. This keeps the reference counts sane.
clientBuffer.unlock();
}
return data;
}
void unlockInternal() override
{
LOGLOCK("image=%p op=%s.ani", this, __FUNCTION__);
clientBuffer.unlock();
LOGLOCK("image=%p op=%s.swsurface", this, __FUNCTION__);
sw::Surface::unlockInternal();
}
void *lock(int x, int y, int z, sw::Lock lock) override
{
LOGLOCK("image=%p op=%s lock=%d", this, __FUNCTION__, lock);
(void)sw::Surface::lockExternal(x, y, z, lock, sw::PUBLIC);
return clientBuffer.lock(x, y, z);
}
void unlock() override
{
LOGLOCK("image=%p op=%s.ani", this, __FUNCTION__);
clientBuffer.unlock();
LOGLOCK("image=%p op=%s.swsurface", this, __FUNCTION__);
sw::Surface::unlockExternal();
}
bool requiresSync() const override
{
return clientBuffer.requiresSync();
}
void release() override
{
Image::release();
}
};
Image *Image::create(const egl::ClientBuffer& clientBuffer)
{
return new ClientBufferImage(clientBuffer);
}
Image::~Image()
{
// sync() must be called in the destructor of the most derived class to ensure their vtable isn't destroyed
// before all threads are done using this image. Image itself is abstract so it can't be the most derived.
ASSERT(isUnlocked());
if(parentTexture)
{
parentTexture->release();
}
ASSERT(!shared);
}
void *Image::lockInternal(int x, int y, int z, sw::Lock lock, sw::Accessor client)
{
return Surface::lockInternal(x, y, z, lock, client);
}
void Image::unlockInternal()
{
Surface::unlockInternal();
}
void Image::release()
{
int refs = dereference();
if(refs > 0)
{
if(parentTexture)
{
parentTexture->sweep();
}
}
else
{
delete this;
}
}
void Image::unbind(const egl::Texture *parent)
{
if(parentTexture == parent)
{
parentTexture = nullptr;
}
release();
}
bool Image::isChildOf(const egl::Texture *parent) const
{
return parentTexture == parent;
}
void Image::loadImageData(GLsizei width, GLsizei height, GLsizei depth, int inputPitch, int inputHeight, GLenum format, GLenum type, const void *input, void *buffer)
{
Rectangle rect;
rect.bytes = gl::ComputePixelSize(format, type);
rect.width = width;
rect.height = height;
rect.depth = depth;
rect.inputPitch = inputPitch;
rect.inputHeight = inputHeight;
rect.destPitch = getPitch();
rect.destSlice = getSlice();
// [OpenGL ES 3.0.5] table 3.2 and 3.3.
switch(format)
{
case GL_RGBA:
switch(type)
{
case GL_UNSIGNED_BYTE:
switch(internalformat)
{
case GL_RGBA8:
case GL_SRGB8_ALPHA8:
return Transfer<Bytes>(buffer, input, rect);
case GL_RGB5_A1:
case GL_RGBA4:
ASSERT_OR_RETURN(getExternalFormat() == sw::FORMAT_A8B8G8R8);
return Transfer<Bytes>(buffer, input, rect);
default:
UNREACHABLE(internalformat);
}
case GL_BYTE:
ASSERT_OR_RETURN(internalformat == GL_RGBA8_SNORM && getExternalFormat() == sw::FORMAT_A8B8G8R8_SNORM);
return Transfer<Bytes>(buffer, input, rect);
case GL_UNSIGNED_SHORT_4_4_4_4:
ASSERT_OR_RETURN(internalformat == GL_RGBA4 && getExternalFormat() == sw::FORMAT_A8B8G8R8);
return Transfer<RGBA4toRGBA8>(buffer, input, rect);
case GL_UNSIGNED_SHORT_5_5_5_1:
ASSERT_OR_RETURN(internalformat == GL_RGB5_A1 && getExternalFormat() == sw::FORMAT_A8B8G8R8);
return Transfer<RGBA5_A1toRGBA8>(buffer, input, rect);
case GL_UNSIGNED_INT_2_10_10_10_REV:
switch(internalformat)
{
case GL_RGB10_A2:
ASSERT_OR_RETURN(getExternalFormat() == sw::FORMAT_A2B10G10R10);
return Transfer<Bytes>(buffer, input, rect);
case GL_RGB5_A1:
ASSERT_OR_RETURN(getExternalFormat() == sw::FORMAT_A8B8G8R8);
return Transfer<RGBA1010102toRGBA8>(buffer, input, rect);
default:
UNREACHABLE(internalformat);
}
case GL_HALF_FLOAT:
case GL_HALF_FLOAT_OES:
ASSERT_OR_RETURN(internalformat == GL_RGBA16F && getExternalFormat() == sw::FORMAT_A16B16G16R16F);
return Transfer<Bytes>(buffer, input, rect);
case GL_FLOAT:
switch(internalformat)
{
case GL_RGBA32F: return Transfer<Bytes>(buffer, input, rect);
case GL_RGBA16F: return Transfer<RGBA32FtoRGBA16F>(buffer, input, rect);
default: UNREACHABLE(internalformat);
}
default:
UNREACHABLE(type);
}
case GL_RGBA_INTEGER:
switch(type)
{
case GL_UNSIGNED_BYTE:
ASSERT_OR_RETURN(internalformat == GL_RGBA8UI && getExternalFormat() == sw::FORMAT_A8B8G8R8UI);
return Transfer<Bytes>(buffer, input, rect);
case GL_BYTE:
ASSERT_OR_RETURN(internalformat == GL_RGBA8I && getExternalFormat() == sw::FORMAT_A8B8G8R8I);
return Transfer<Bytes>(buffer, input, rect);
case GL_UNSIGNED_SHORT:
ASSERT_OR_RETURN(internalformat == GL_RGBA16UI && getExternalFormat() == sw::FORMAT_A16B16G16R16UI);
return Transfer<Bytes>(buffer, input, rect);
case GL_SHORT:
ASSERT_OR_RETURN(internalformat == GL_RGBA16I && getExternalFormat() == sw::FORMAT_A16B16G16R16I);
return Transfer<Bytes>(buffer, input, rect);
case GL_UNSIGNED_INT:
ASSERT_OR_RETURN(internalformat == GL_RGBA32UI && getExternalFormat() == sw::FORMAT_A32B32G32R32UI);
return Transfer<Bytes>(buffer, input, rect);
case GL_INT:
ASSERT_OR_RETURN(internalformat == GL_RGBA32I && getExternalFormat() == sw::FORMAT_A32B32G32R32I);
return Transfer<Bytes>(buffer, input, rect);
case GL_UNSIGNED_INT_2_10_10_10_REV:
ASSERT_OR_RETURN(internalformat == GL_RGB10_A2UI && getExternalFormat() == sw::FORMAT_A2B10G10R10UI);
return Transfer<Bytes>(buffer, input, rect);
default:
UNREACHABLE(type);
}
case GL_BGRA_EXT:
switch(type)
{
case GL_UNSIGNED_BYTE:
ASSERT_OR_RETURN(internalformat == GL_BGRA8_EXT && getExternalFormat() == sw::FORMAT_A8R8G8B8);
return Transfer<Bytes>(buffer, input, rect);
case GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT: // Only valid for glReadPixels calls.
case GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT: // Only valid for glReadPixels calls.
default:
UNREACHABLE(type);
}
case GL_RGB:
switch(type)
{
case GL_UNSIGNED_BYTE:
switch(internalformat)
{
case GL_RGB8: return Transfer<RGB8toRGBX8>(buffer, input, rect);
case GL_SRGB8: return Transfer<RGB8toRGBX8>(buffer, input, rect);
case GL_RGB565: return Transfer<RGB8toRGB565>(buffer, input, rect);
default: UNREACHABLE(internalformat);
}
case GL_BYTE:
ASSERT_OR_RETURN(internalformat == GL_RGB8_SNORM && getExternalFormat() == sw::FORMAT_X8B8G8R8_SNORM);
return Transfer<RGB8toRGBX8>(buffer, input, rect);
case GL_UNSIGNED_SHORT_5_6_5:
ASSERT_OR_RETURN(internalformat == GL_RGB565 && getExternalFormat() == sw::FORMAT_R5G6B5);
return Transfer<Bytes>(buffer, input, rect);
case GL_UNSIGNED_INT_10F_11F_11F_REV:
ASSERT_OR_RETURN(internalformat == GL_R11F_G11F_B10F && getExternalFormat() == sw::FORMAT_X16B16G16R16F_UNSIGNED);
return Transfer<R11G11B10FtoRGBX16F>(buffer, input, rect);
case GL_UNSIGNED_INT_5_9_9_9_REV:
ASSERT_OR_RETURN(internalformat == GL_RGB9_E5 && getExternalFormat() == sw::FORMAT_X16B16G16R16F_UNSIGNED);
return Transfer<RGB9_E5FtoRGBX16F>(buffer, input, rect);
case GL_HALF_FLOAT:
case GL_HALF_FLOAT_OES:
switch(internalformat)
{
case GL_RGB16F:
ASSERT_OR_RETURN(getExternalFormat() == sw::FORMAT_X16B16G16R16F);
return Transfer<RGB16FtoRGBX16F>(buffer, input, rect);
case GL_R11F_G11F_B10F:
case GL_RGB9_E5:
ASSERT_OR_RETURN(getExternalFormat() == sw::FORMAT_X16B16G16R16F_UNSIGNED);
return Transfer<RGB16FtoRGBX16F>(buffer, input, rect);
default:
UNREACHABLE(internalformat);
}
case GL_FLOAT:
switch(internalformat)
{
case GL_RGB32F:
ASSERT_OR_RETURN(getExternalFormat() == sw::FORMAT_X32B32G32R32F);
return Transfer<RGB32FtoRGBX32F>(buffer, input, rect);
case GL_RGB16F:
ASSERT_OR_RETURN(getExternalFormat() == sw::FORMAT_X16B16G16R16F);
return Transfer<RGB32FtoRGB16F>(buffer, input, rect);
case GL_R11F_G11F_B10F:
case GL_RGB9_E5:
ASSERT_OR_RETURN(getExternalFormat() == sw::FORMAT_X16B16G16R16F_UNSIGNED);
return Transfer<RGB32FtoRGB16F_UNSIGNED>(buffer, input, rect);
default:
UNREACHABLE(internalformat);
}
default:
UNREACHABLE(type);
}
case GL_RGB_INTEGER:
switch(type)
{
case GL_UNSIGNED_BYTE:
ASSERT_OR_RETURN(internalformat == GL_RGB8UI && getExternalFormat() == sw::FORMAT_X8B8G8R8UI);
return Transfer<RGB8toRGBX8>(buffer, input, rect);
case GL_BYTE:
ASSERT_OR_RETURN(internalformat == GL_RGB8I && getExternalFormat() == sw::FORMAT_X8B8G8R8I);
return Transfer<RGB8toRGBX8>(buffer, input, rect);
case GL_UNSIGNED_SHORT:
ASSERT_OR_RETURN(internalformat == GL_RGB16UI && getExternalFormat() == sw::FORMAT_X16B16G16R16UI);
return Transfer<RGB16toRGBX16>(buffer, input, rect);
case GL_SHORT:
ASSERT_OR_RETURN(internalformat == GL_RGB16I && getExternalFormat() == sw::FORMAT_X16B16G16R16I);
return Transfer<RGB16toRGBX16>(buffer, input, rect);
case GL_UNSIGNED_INT:
ASSERT_OR_RETURN(internalformat == GL_RGB32UI && getExternalFormat() == sw::FORMAT_X32B32G32R32UI);
return Transfer<RGB32toRGBX32>(buffer, input, rect);
case GL_INT:
ASSERT_OR_RETURN(internalformat == GL_RGB32I && getExternalFormat() == sw::FORMAT_X32B32G32R32I);
return Transfer<RGB32toRGBX32>(buffer, input, rect);
default:
UNREACHABLE(type);
}
case GL_RG:
switch(type)
{
case GL_UNSIGNED_BYTE:
case GL_BYTE:
case GL_HALF_FLOAT:
case GL_HALF_FLOAT_OES:
return Transfer<Bytes>(buffer, input, rect);
case GL_FLOAT:
switch(internalformat)
{
case GL_RG32F: return Transfer<Bytes>(buffer, input, rect);
case GL_RG16F: return Transfer<RG32FtoRG16F>(buffer, input, rect);
default: UNREACHABLE(internalformat);
}
default:
UNREACHABLE(type);
}
case GL_RG_INTEGER:
switch(type)
{
case GL_UNSIGNED_BYTE:
ASSERT_OR_RETURN(internalformat == GL_RG8UI && getExternalFormat() == sw::FORMAT_G8R8UI);
return Transfer<Bytes>(buffer, input, rect);
case GL_BYTE:
ASSERT_OR_RETURN(internalformat == GL_RG8I && getExternalFormat() == sw::FORMAT_G8R8I);
return Transfer<Bytes>(buffer, input, rect);
case GL_UNSIGNED_SHORT:
ASSERT_OR_RETURN(internalformat == GL_RG16UI && getExternalFormat() == sw::FORMAT_G16R16UI);
return Transfer<Bytes>(buffer, input, rect);
case GL_SHORT:
ASSERT_OR_RETURN(internalformat == GL_RG16I && getExternalFormat() == sw::FORMAT_G16R16I);
return Transfer<Bytes>(buffer, input, rect);
case GL_UNSIGNED_INT:
ASSERT_OR_RETURN(internalformat == GL_RG32UI && getExternalFormat() == sw::FORMAT_G32R32UI);
return Transfer<Bytes>(buffer, input, rect);
case GL_INT:
ASSERT_OR_RETURN(internalformat == GL_RG32I && getExternalFormat() == sw::FORMAT_G32R32I);
return Transfer<Bytes>(buffer, input, rect);
default:
UNREACHABLE(type);
}
case GL_RED:
switch(type)
{
case GL_UNSIGNED_BYTE:
case GL_BYTE:
case GL_HALF_FLOAT:
case GL_HALF_FLOAT_OES:
return Transfer<Bytes>(buffer, input, rect);
case GL_FLOAT:
switch(internalformat)
{
case GL_R32F: return Transfer<Bytes>(buffer, input, rect);
case GL_R16F: return Transfer<R32FtoR16F>(buffer, input, rect);
default: UNREACHABLE(internalformat);
}
default:
UNREACHABLE(type);
}
case GL_RED_INTEGER:
switch(type)
{
case GL_UNSIGNED_BYTE:
ASSERT_OR_RETURN(internalformat == GL_R8UI && getExternalFormat() == sw::FORMAT_R8UI);
return Transfer<Bytes>(buffer, input, rect);
case GL_BYTE:
ASSERT_OR_RETURN(internalformat == GL_R8I && getExternalFormat() == sw::FORMAT_R8I);
return Transfer<Bytes>(buffer, input, rect);
case GL_UNSIGNED_SHORT:
ASSERT_OR_RETURN(internalformat == GL_R16UI && getExternalFormat() == sw::FORMAT_R16UI);
return Transfer<Bytes>(buffer, input, rect);
case GL_SHORT:
ASSERT_OR_RETURN(internalformat == GL_R16I && getExternalFormat() == sw::FORMAT_R16I);
return Transfer<Bytes>(buffer, input, rect);
case GL_UNSIGNED_INT:
ASSERT_OR_RETURN(internalformat == GL_R32UI && getExternalFormat() == sw::FORMAT_R32UI);
return Transfer<Bytes>(buffer, input, rect);
case GL_INT:
ASSERT_OR_RETURN(internalformat == GL_R32I && getExternalFormat() == sw::FORMAT_R32I);
return Transfer<Bytes>(buffer, input, rect);
default:
UNREACHABLE(type);
}
case GL_DEPTH_COMPONENT:
switch(type)
{
case GL_UNSIGNED_SHORT: return Transfer<D16toD32F>(buffer, input, rect);
case GL_UNSIGNED_INT: return Transfer<D32toD32F>(buffer, input, rect);
case GL_FLOAT: return Transfer<D32FtoD32F_CLAMPED>(buffer, input, rect);
case GL_DEPTH_COMPONENT24: // Only valid for glRenderbufferStorage calls.
case GL_DEPTH_COMPONENT32_OES: // Only valid for glRenderbufferStorage calls.
default: UNREACHABLE(type);
}
case GL_DEPTH_STENCIL:
switch(type)
{
case GL_UNSIGNED_INT_24_8: return Transfer<D24X8toD32F>(buffer, input, rect);
case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: return Transfer<D32FX32toD32F>(buffer, input, rect);
default: UNREACHABLE(type);
}
case GL_LUMINANCE_ALPHA:
switch(type)
{
case GL_UNSIGNED_BYTE:
return Transfer<Bytes>(buffer, input, rect);
case GL_FLOAT:
switch(internalformat)
{
case GL_LUMINANCE_ALPHA32F_EXT: return Transfer<Bytes>(buffer, input, rect);
case GL_LUMINANCE_ALPHA16F_EXT: return Transfer<RG32FtoRG16F>(buffer, input, rect);
default: UNREACHABLE(internalformat);
}
case GL_HALF_FLOAT:
case GL_HALF_FLOAT_OES:
ASSERT_OR_RETURN(internalformat == GL_LUMINANCE_ALPHA16F_EXT);
return Transfer<Bytes>(buffer, input, rect);
default:
UNREACHABLE(type);
}
case GL_LUMINANCE:
case GL_ALPHA:
switch(type)
{
case GL_UNSIGNED_BYTE:
return Transfer<Bytes>(buffer, input, rect);
case GL_FLOAT:
switch(internalformat)
{
case GL_LUMINANCE32F_EXT: return Transfer<Bytes>(buffer, input, rect);
case GL_LUMINANCE16F_EXT: return Transfer<R32FtoR16F>(buffer, input, rect);
case GL_ALPHA32F_EXT: return Transfer<Bytes>(buffer, input, rect);
case GL_ALPHA16F_EXT: return Transfer<R32FtoR16F>(buffer, input, rect);
default: UNREACHABLE(internalformat);
}
case GL_HALF_FLOAT:
case GL_HALF_FLOAT_OES:
ASSERT_OR_RETURN(internalformat == GL_LUMINANCE16F_EXT || internalformat == GL_ALPHA16F_EXT);
return Transfer<Bytes>(buffer, input, rect);
default:
UNREACHABLE(type);
}
default:
UNREACHABLE(format);
}
}
void Image::loadStencilData(GLsizei width, GLsizei height, GLsizei depth, int inputPitch, int inputHeight, GLenum format, GLenum type, const void *input, void *buffer)
{
Rectangle rect;
rect.bytes = gl::ComputePixelSize(format, type);
rect.width = width;
rect.height = height;
rect.depth = depth;
rect.inputPitch = inputPitch;
rect.inputHeight = inputHeight;
rect.destPitch = getStencilPitchB();
rect.destSlice = getStencilSliceB();
switch(type)
{
case GL_UNSIGNED_INT_24_8: return Transfer<X24S8toS8>(buffer, input, rect);
case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: return Transfer<X56S8toS8>(buffer, input, rect);
default: UNREACHABLE(format);
}
}
void Image::loadImageData(GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const gl::PixelStorageModes &unpackParameters, const void *pixels)
{
GLsizei inputWidth = (unpackParameters.rowLength == 0) ? width : unpackParameters.rowLength;
GLsizei inputPitch = gl::ComputePitch(inputWidth, format, type, unpackParameters.alignment);
GLsizei inputHeight = (unpackParameters.imageHeight == 0) ? height : unpackParameters.imageHeight;
char *input = ((char*)pixels) + gl::ComputePackingOffset(format, type, inputWidth, inputHeight, unpackParameters);
void *buffer = lock(xoffset, yoffset, zoffset, sw::LOCK_WRITEONLY);
if(buffer)
{
loadImageData(width, height, depth, inputPitch, inputHeight, format, type, input, buffer);
}
unlock();
if(hasStencil())
{
unsigned char *stencil = reinterpret_cast<unsigned char*>(lockStencil(xoffset, yoffset, zoffset, sw::PUBLIC));
if(stencil)
{
loadStencilData(width, height, depth, inputPitch, inputHeight, format, type, input, stencil);
}
unlockStencil();
}
}
void Image::loadCompressedData(GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLsizei imageSize, const void *pixels)
{
int inputPitch = gl::ComputeCompressedPitch(width, internalformat);
int inputSlice = imageSize / depth;
int rows = inputSlice / inputPitch;
void *buffer = lock(xoffset, yoffset, zoffset, sw::LOCK_WRITEONLY);
if(buffer)
{
for(int z = 0; z < depth; z++)
{
for(int y = 0; y < rows; y++)
{
GLbyte *dest = (GLbyte*)buffer + y * getPitch() + z * getSlice();
GLbyte *source = (GLbyte*)pixels + y * inputPitch + z * inputSlice;
memcpy(dest, source, inputPitch);
}
}
}
unlock();
}
}