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Unified Diff: webrtc/sdk/objc/Framework/Classes/RTCI420TextureCache.mm

Issue 2862543002: Split iOS sdk in to separate targets (Closed)
Patch Set: rebase and minor fixes Created 3 years, 7 months ago
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Index: webrtc/sdk/objc/Framework/Classes/RTCI420TextureCache.mm
diff --git a/webrtc/sdk/objc/Framework/Classes/RTCI420TextureCache.mm b/webrtc/sdk/objc/Framework/Classes/RTCI420TextureCache.mm
deleted file mode 100644
index d263c75e939713e0ffbd41d1924fbf6087a18976..0000000000000000000000000000000000000000
--- a/webrtc/sdk/objc/Framework/Classes/RTCI420TextureCache.mm
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * Copyright 2017 The WebRTC 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 in the root of the source
- * tree. An additional intellectual property rights grant can be found
- * in the file PATENTS. All contributing project authors may
- * be found in the AUTHORS file in the root of the source tree.
- */
-
-#import "RTCI420TextureCache.h"
-
-#import "RTCShader+Private.h"
-
-#include <vector>
-
-// Two sets of 3 textures are used here, one for each of the Y, U and V planes. Having two sets
-// alleviates CPU blockage in the event that the GPU is asked to render to a texture that is already
-// in use.
-static const GLsizei kNumTextureSets = 2;
-static const GLsizei kNumTexturesPerSet = 3;
-static const GLsizei kNumTextures = kNumTexturesPerSet * kNumTextureSets;
-
-@implementation RTCI420TextureCache {
- BOOL _hasUnpackRowLength;
- GLint _currentTextureSet;
- // Handles for OpenGL constructs.
- GLuint _textures[kNumTextures];
- // Used to create a non-padded plane for GPU upload when we receive padded frames.
- std::vector<uint8_t> _planeBuffer;
-}
-
-- (GLuint)yTexture {
- return _textures[_currentTextureSet * kNumTexturesPerSet];
-}
-
-- (GLuint)uTexture {
- return _textures[_currentTextureSet * kNumTexturesPerSet + 1];
-}
-
-- (GLuint)vTexture {
- return _textures[_currentTextureSet * kNumTexturesPerSet + 2];
-}
-
-- (instancetype)initWithContext:(GlContextType *)context {
- if (self = [super init]) {
-#if TARGET_OS_IPHONE
- _hasUnpackRowLength = (context.API == kEAGLRenderingAPIOpenGLES3);
-#else
- _hasUnpackRowLength = YES;
-#endif
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
- [self setupTextures];
- }
- return self;
-}
-
-- (void)dealloc {
- glDeleteTextures(kNumTextures, _textures);
-}
-
-- (void)setupTextures {
- glGenTextures(kNumTextures, _textures);
- // Set parameters for each of the textures we created.
- for (GLsizei i = 0; i < kNumTextures; i++) {
- glBindTexture(GL_TEXTURE_2D, _textures[i]);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
- }
-}
-
-- (void)uploadPlane:(const uint8_t *)plane
- texture:(GLuint)texture
- width:(size_t)width
- height:(size_t)height
- stride:(int32_t)stride {
- glBindTexture(GL_TEXTURE_2D, texture);
-
- const uint8_t *uploadPlane = plane;
- if ((size_t)stride != width) {
- if (_hasUnpackRowLength) {
- // GLES3 allows us to specify stride.
- glPixelStorei(GL_UNPACK_ROW_LENGTH, stride);
- glTexImage2D(GL_TEXTURE_2D,
- 0,
- RTC_PIXEL_FORMAT,
- static_cast<GLsizei>(width),
- static_cast<GLsizei>(height),
- 0,
- RTC_PIXEL_FORMAT,
- GL_UNSIGNED_BYTE,
- uploadPlane);
- glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
- return;
- } else {
- // Make an unpadded copy and upload that instead. Quick profiling showed
- // that this is faster than uploading row by row using glTexSubImage2D.
- uint8_t *unpaddedPlane = _planeBuffer.data();
- for (size_t y = 0; y < height; ++y) {
- memcpy(unpaddedPlane + y * width, plane + y * stride, width);
- }
- uploadPlane = unpaddedPlane;
- }
- }
- glTexImage2D(GL_TEXTURE_2D,
- 0,
- RTC_PIXEL_FORMAT,
- static_cast<GLsizei>(width),
- static_cast<GLsizei>(height),
- 0,
- RTC_PIXEL_FORMAT,
- GL_UNSIGNED_BYTE,
- uploadPlane);
-}
-
-- (void)uploadFrameToTextures:(RTCVideoFrame *)frame {
- _currentTextureSet = (_currentTextureSet + 1) % kNumTextureSets;
-
- const int chromaWidth = (frame.width + 1) / 2;
- const int chromaHeight = (frame.height + 1) / 2;
- if (frame.strideY != frame.width ||
- frame.strideU != chromaWidth ||
- frame.strideV != chromaWidth) {
- _planeBuffer.resize(frame.width * frame.height);
- }
-
- [self uploadPlane:frame.dataY
- texture:self.yTexture
- width:frame.width
- height:frame.height
- stride:frame.strideY];
-
- [self uploadPlane:frame.dataU
- texture:self.uTexture
- width:chromaWidth
- height:chromaHeight
- stride:frame.strideU];
-
- [self uploadPlane:frame.dataV
- texture:self.vTexture
- width:chromaWidth
- height:chromaHeight
- stride:frame.strideV];
-}
-
-@end
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