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author | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
commit | 7c1b96a165f970a09ed239bb4fb3f1b0d8f2a407 (patch) | |
tree | df5a6539447324de36e95b057d6b9f0361b7a250 /libs/ui/PixelFormat.cpp | |
download | frameworks_native-7c1b96a165f970a09ed239bb4fb3f1b0d8f2a407.zip frameworks_native-7c1b96a165f970a09ed239bb4fb3f1b0d8f2a407.tar.gz frameworks_native-7c1b96a165f970a09ed239bb4fb3f1b0d8f2a407.tar.bz2 |
Initial Contribution
Diffstat (limited to 'libs/ui/PixelFormat.cpp')
-rw-r--r-- | libs/ui/PixelFormat.cpp | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/libs/ui/PixelFormat.cpp b/libs/ui/PixelFormat.cpp new file mode 100644 index 0000000..605c8ae --- /dev/null +++ b/libs/ui/PixelFormat.cpp @@ -0,0 +1,66 @@ +/* + * Copyright (C) 2007 The Android Open Source Project + * + * 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 <ui/PixelFormat.h> +#include <pixelflinger/format.h> + +namespace android { + +ssize_t bytesPerPixel(PixelFormat format) +{ + PixelFormatInfo info; + status_t err = getPixelFormatInfo(format, &info); + return (err < 0) ? err : info.bytesPerPixel; +} + +ssize_t bitsPerPixel(PixelFormat format) +{ + PixelFormatInfo info; + status_t err = getPixelFormatInfo(format, &info); + return (err < 0) ? err : info.bitsPerPixel; +} + +status_t getPixelFormatInfo(PixelFormat format, PixelFormatInfo* info) +{ + if (format < 0) + return BAD_VALUE; + + if (info->version != sizeof(PixelFormatInfo)) + return INVALID_OPERATION; + + size_t numEntries; + const GGLFormat *i = gglGetPixelFormatTable(&numEntries) + format; + bool valid = uint32_t(format) < numEntries; + if (!valid) { + return BAD_INDEX; + } + + info->format = format; + info->bytesPerPixel = i->size; + info->bitsPerPixel = i->bitsPerPixel; + info->h_alpha = i->ah; + info->l_alpha = i->al; + info->h_red = i->rh; + info->l_red = i->rl; + info->h_green = i->gh; + info->l_green = i->gl; + info->h_blue = i->bh; + info->l_blue = i->bl; + return NO_ERROR; +} + +}; // namespace android + |