GUAC-236: Stub resize of buffers. Implement size.
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@ -34,6 +34,7 @@ noinst_HEADERS = \
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log.h
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guacenc_SOURCES = \
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buffer.c \
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display.c \
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encode.c \
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guacenc.c \
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46
src/guacenc/buffer.c
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46
src/guacenc/buffer.c
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@ -0,0 +1,46 @@
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/*
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* Copyright (C) 2016 Glyptodon, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "config.h"
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#include "buffer.h"
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#include <stdlib.h>
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guacenc_buffer* guacenc_buffer_alloc() {
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return calloc(1, sizeof(guacenc_buffer));
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}
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void guacenc_buffer_free(guacenc_buffer* buffer) {
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free(buffer);
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}
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int guacenc_buffer_resize(guacenc_buffer* buffer, int width, int height) {
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/* STUB */
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buffer->width = width;
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buffer->height = height;
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return 0;
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}
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@ -41,7 +41,51 @@ typedef struct guacenc_buffer {
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*/
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int height;
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/**
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* The number of bytes in each row of image data.
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*/
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int stride;
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} guacenc_buffer;
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/**
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* Allocates and initializes a new buffer object. This allocation is
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* independent of the Guacamole video encoder display; the allocated
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* guacenc_buffer will not automatically be associated with the active display.
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*
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* @return
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* A newly-allocated and initialized guacenc_buffer, or NULL if allocation
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* fails.
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*/
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guacenc_buffer* guacenc_buffer_alloc();
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/**
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* Frees all memory associated with the given buffer object. If the buffer
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* provided is NULL, this function has no effect.
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*
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* @param buffer
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* The buffer to free, which may be NULL.
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*/
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void guacenc_buffer_free(guacenc_buffer* buffer);
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/**
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* Resizes the given buffer to the given dimensions, allocating or freeing
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* memory as necessary, and updating the buffer's width, height, and stride
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* properties.
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*
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* @param buffer
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* The buffer to resize.
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*
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* @param width
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* The new width of the buffer, in pixels.
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*
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* @param height
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* The new height of the buffer, in pixels.
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*
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* @return
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* Zero if the resize operation is successful, non-zero on error.
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*/
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int guacenc_buffer_resize(guacenc_buffer* buffer, int width, int height);
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#endif
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@ -41,9 +41,13 @@ int guacenc_handle_size(guacenc_display* display, int argc, char** argv) {
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int width = atoi(argv[1]);
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int height = atoi(argv[2]);
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/* STUB */
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guacenc_log(GUAC_LOG_DEBUG, "size: layer=%i %ix%i", index, width, height);
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return 0;
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/* Retrieve requested layer */
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guacenc_layer* layer = guacenc_display_get_layer(display, index);
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if (layer == NULL)
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return 1;
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/* Resize layer */
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return guacenc_buffer_resize(layer->buffer, width, height);
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}
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@ -21,6 +21,7 @@
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*/
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#include "config.h"
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#include "buffer.h"
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#include "layer.h"
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#include <stdlib.h>
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@ -32,6 +33,13 @@ guacenc_layer* guacenc_layer_alloc() {
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if (layer == NULL)
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return NULL;
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/* Allocate associated buffer (width, height, and image storage) */
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layer->buffer = guacenc_buffer_alloc();
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if (layer->buffer == NULL) {
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free(layer);
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return NULL;
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}
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/* Layers default to fully opaque */
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layer->opacity = 0xFF;
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@ -40,6 +48,15 @@ guacenc_layer* guacenc_layer_alloc() {
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}
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void guacenc_layer_free(guacenc_layer* layer) {
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/* Ignore NULL layers */
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if (layer == NULL)
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return;
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/* Free underlying buffer */
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guacenc_buffer_free(layer->buffer);
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free(layer);
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}
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