cam: sdl_texture: Rename 'pitch' to 'stride'

The libcamera public API uses 'stride' to refer to the line stride.
Rename the SDLTexture::pitch_ member variable for consistency.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>

src/cam/sdl_texture.cpp

@@ -10,8 +10,8 @@
 #include <iostream>
 
 SDLTexture::SDLTexture(const SDL_Rect &rect, uint32_t pixelFormat,
-		       const int pitch)
-	: ptr_(nullptr), rect_(rect), pixelFormat_(pixelFormat), pitch_(pitch)
+		       const int stride)
+	: ptr_(nullptr), rect_(rect), pixelFormat_(pixelFormat), stride_(stride)
 {
 }
 

src/cam/sdl_texture.h

@@ -16,7 +16,7 @@
 class SDLTexture
 {
 public:
-	SDLTexture(const SDL_Rect &rect, uint32_t pixelFormat, const int pitch);
+	SDLTexture(const SDL_Rect &rect, uint32_t pixelFormat, const int stride);
 	virtual ~SDLTexture();
 	int create(SDL_Renderer *renderer);
 	virtual void update(const std::vector<libcamera::Span<const uint8_t>> &data) = 0;
@@ -26,5 +26,5 @@ protected:
 	SDL_Texture *ptr_;
 	const SDL_Rect rect_;
 	const uint32_t pixelFormat_;
-	const int pitch_;
+	const int stride_;
 };

src/cam/sdl_texture_mjpg.cpp

@@ -39,7 +39,7 @@ struct JpegErrorManager : public jpeg_error_mgr {
 
 SDLTextureMJPG::SDLTextureMJPG(const SDL_Rect &rect)
 	: SDLTexture(rect, SDL_PIXELFORMAT_RGB24, rect.w * 3),
-	  rgb_(std::make_unique<unsigned char[]>(pitch_ * rect.h))
+	  rgb_(std::make_unique<unsigned char[]>(stride_ * rect.h))
 {
 }
 
@@ -65,7 +65,7 @@ int SDLTextureMJPG::decompress(Span<const uint8_t> data)
 	jpeg_start_decompress(&cinfo);
 
 	for (int i = 0; cinfo.output_scanline < cinfo.output_height; ++i) {
-		JSAMPROW rowptr = rgb_.get() + i * pitch_;
+		JSAMPROW rowptr = rgb_.get() + i * stride_;
 		jpeg_read_scanlines(&cinfo, &rowptr, 1);
 	}
 
@@ -79,5 +79,5 @@ int SDLTextureMJPG::decompress(Span<const uint8_t> data)
 void SDLTextureMJPG::update(const std::vector<libcamera::Span<const uint8_t>> &data)
 {
 	decompress(data[0]);
-	SDL_UpdateTexture(ptr_, nullptr, rgb_.get(), pitch_);
+	SDL_UpdateTexture(ptr_, nullptr, rgb_.get(), stride_);
 }

src/cam/sdl_texture_yuv.cpp

@@ -17,8 +17,8 @@ SDLTextureNV12::SDLTextureNV12(const SDL_Rect &rect, unsigned int stride)
 
 void SDLTextureNV12::update(const std::vector<libcamera::Span<const uint8_t>> &data)
 {
-	SDL_UpdateNVTexture(ptr_, &rect_, data[0].data(), pitch_,
-			    data[1].data(), pitch_);
+	SDL_UpdateNVTexture(ptr_, &rect_, data[0].data(), stride_,
+			    data[1].data(), stride_);
 }
 #endif
 
@@ -29,5 +29,5 @@ SDLTextureYUYV::SDLTextureYUYV(const SDL_Rect &rect, unsigned int stride)
 
 void SDLTextureYUYV::update(const std::vector<libcamera::Span<const uint8_t>> &data)
 {
-	SDL_UpdateTexture(ptr_, &rect_, data[0].data(), pitch_);
+	SDL_UpdateTexture(ptr_, &rect_, data[0].data(), stride_);
 }