1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/gl/GfxTexturesReporter.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,88 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* vim: set ts=8 sts=4 et sw=4 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#include "GfxTexturesReporter.h"
1.11 +#include "GLDefs.h"
1.12 +
1.13 +using namespace mozilla;
1.14 +using namespace mozilla::gl;
1.15 +
1.16 +NS_IMPL_ISUPPORTS(GfxTexturesReporter, nsIMemoryReporter)
1.17 +
1.18 +int64_t GfxTexturesReporter::sAmount = 0;
1.19 +
1.20 +static uint32_t
1.21 +GetBitsPerTexel(GLenum format, GLenum type)
1.22 +{
1.23 + // If there is no defined format or type, we're not taking up any memory
1.24 + if (!format || !type) {
1.25 + return 0;
1.26 + }
1.27 +
1.28 + if (format == LOCAL_GL_DEPTH_COMPONENT) {
1.29 + if (type == LOCAL_GL_UNSIGNED_SHORT)
1.30 + return 2*8;
1.31 + else if (type == LOCAL_GL_UNSIGNED_INT)
1.32 + return 4*8;
1.33 + } else if (format == LOCAL_GL_DEPTH_STENCIL) {
1.34 + if (type == LOCAL_GL_UNSIGNED_INT_24_8_EXT)
1.35 + return 4*8;
1.36 + }
1.37 +
1.38 + if (type == LOCAL_GL_UNSIGNED_BYTE || type == LOCAL_GL_FLOAT) {
1.39 + uint32_t multiplier = type == LOCAL_GL_FLOAT ? 32 : 8;
1.40 + switch (format) {
1.41 + case LOCAL_GL_ALPHA:
1.42 + case LOCAL_GL_LUMINANCE:
1.43 + return 1 * multiplier;
1.44 + case LOCAL_GL_LUMINANCE_ALPHA:
1.45 + return 2 * multiplier;
1.46 + case LOCAL_GL_RGB:
1.47 + return 3 * multiplier;
1.48 + case LOCAL_GL_RGBA:
1.49 + return 4 * multiplier;
1.50 + case LOCAL_GL_COMPRESSED_RGB_PVRTC_2BPPV1:
1.51 + case LOCAL_GL_COMPRESSED_RGBA_PVRTC_2BPPV1:
1.52 + return 2;
1.53 + case LOCAL_GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
1.54 + case LOCAL_GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
1.55 + case LOCAL_GL_ATC_RGB:
1.56 + case LOCAL_GL_COMPRESSED_RGB_PVRTC_4BPPV1:
1.57 + case LOCAL_GL_COMPRESSED_RGBA_PVRTC_4BPPV1:
1.58 + case LOCAL_GL_ETC1_RGB8_OES:
1.59 + return 4;
1.60 + case LOCAL_GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
1.61 + case LOCAL_GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
1.62 + case LOCAL_GL_ATC_RGBA_EXPLICIT_ALPHA:
1.63 + case LOCAL_GL_ATC_RGBA_INTERPOLATED_ALPHA:
1.64 + return 8;
1.65 + default:
1.66 + break;
1.67 + }
1.68 + } else if (type == LOCAL_GL_UNSIGNED_SHORT_4_4_4_4 ||
1.69 + type == LOCAL_GL_UNSIGNED_SHORT_5_5_5_1 ||
1.70 + type == LOCAL_GL_UNSIGNED_SHORT_5_6_5)
1.71 + {
1.72 + return 2*8;
1.73 + }
1.74 +
1.75 + MOZ_ASSERT(false);
1.76 + return 0;
1.77 +}
1.78 +
1.79 +/* static */ void
1.80 +GfxTexturesReporter::UpdateAmount(MemoryUse action, GLenum format,
1.81 + GLenum type, int32_t tileWidth,
1.82 + int32_t tileHeight)
1.83 +{
1.84 + int64_t bitsPerTexel = GetBitsPerTexel(format, type);
1.85 + int64_t bytes = int64_t(tileWidth) * int64_t(tileHeight) * bitsPerTexel/8;
1.86 + if (action == MemoryFreed) {
1.87 + sAmount -= bytes;
1.88 + } else {
1.89 + sAmount += bytes;
1.90 + }
1.91 +}
