GUACAMOLE-188: Merge alpha component support for common surface.
This commit is contained in:
commit
d831a4b9df
@ -336,20 +336,43 @@ void guac_common_surface_transfer(guac_common_surface* src, int sx, int sy, int
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guac_transfer_function op, guac_common_surface* dst, int dx, int dy);
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guac_transfer_function op, guac_common_surface* dst, int dx, int dy);
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/**
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/**
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* Draws a solid color rectangle at the given coordinates on the given surface.
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* Assigns the given value to all pixels within a rectangle of the given
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* surface. The color of all pixels within the rectangle, including the alpha
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* component, is entirely replaced.
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*
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*
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* @param surface The surface to draw upon.
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* @param surface
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* @param x The X coordinate of the upper-left corner of the rectangle.
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* The surface to draw upon.
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* @param y The Y coordinate of the upper-left corner of the rectangle.
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*
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* @param w The width of the rectangle.
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* @param x
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* @param h The height of the rectangle.
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* The X coordinate of the upper-left corner of the rectangle.
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* @param red The red component of the color of the rectangle.
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*
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* @param green The green component of the color of the rectangle.
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* @param y
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* @param blue The blue component of the color of the rectangle.
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* The Y coordinate of the upper-left corner of the rectangle.
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*
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* @param w
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* The width of the rectangle.
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*
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* @param h
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* The height of the rectangle.
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*
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* @param red
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* The red component of the color value to assign to all pixels within the
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* rectangle.
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*
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* @param green
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* The green component of the color value to assign to all pixels within
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* the rectangle.
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*
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* @param blue
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* The blue component of the color value to assign to all pixels within the
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* rectangle.
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*
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* @param alpha
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* The alpha component of the color value to assign to all pixels within
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* the rectangle.
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*/
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*/
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void guac_common_surface_rect(guac_common_surface* surface,
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void guac_common_surface_set(guac_common_surface* surface, int x, int y,
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int x, int y, int w, int h,
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int w, int h, int red, int green, int blue, int alpha);
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int red, int green, int blue);
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/**
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/**
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* Given the coordinates and dimensions of a rectangle, clips all future
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* Given the coordinates and dimensions of a rectangle, clips all future
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@ -224,6 +224,54 @@ static void __guac_common_clip_rect(guac_common_surface* surface,
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}
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}
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/**
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* Returns whether a rectangle within the given surface contains only fully
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* opaque pixels.
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*
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* @param surface
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* The surface to check.
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*
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* @param rect
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* The rectangle to check.
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*
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* @return
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* Non-zero if the rectangle contains only fully opaque pixels, zero
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* otherwise.
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*/
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static int __guac_common_surface_is_opaque(guac_common_surface* surface,
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guac_common_rect* rect) {
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int x, y;
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int stride = surface ->stride;
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unsigned char* buffer =
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surface->buffer + (stride * rect->y) + (4 * rect->x);
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/* For each row */
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for (y = 0; y < rect->height; y++) {
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/* Search for a non-opaque pixel */
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uint32_t* current = (uint32_t*) buffer;
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for (x=0; x < rect->width; x++) {
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/* Rectangle is non-opaque if a single non-opaque pixel is found */
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uint32_t color = *(current++);
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if ((color & 0xFF000000) != 0xFF000000)
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return 0;
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}
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/* Next row */
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buffer += stride;
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}
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/* Rectangle is opaque */
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return 1;
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}
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/**
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/**
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* Returns whether the given rectangle should be combined into the existing
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* Returns whether the given rectangle should be combined into the existing
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* dirty rectangle, to be eventually flushed as a "png" instruction.
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* dirty rectangle, to be eventually flushed as a "png" instruction.
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@ -730,24 +778,41 @@ static int __guac_common_surface_transfer_int(guac_transfer_function op, uint32_
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}
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}
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/**
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/**
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* Draws a rectangle of solid color within the backing surface of the
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* Assigns the given value to all pixels within a rectangle of the backing
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* given destination surface.
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* surface of the given destination surface. The color of all pixels within the
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* rectangle, including the alpha component, is entirely replaced.
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*
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*
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* @param dst The destination surface.
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* @param dst
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* @param rect The rectangle to draw.
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* The destination surface.
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* @param red The red component of the color of the rectangle.
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*
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* @param green The green component of the color of the rectangle.
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* @param rect
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* @param blue The blue component of the color of the rectangle.
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* The rectangle to draw.
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*
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* @param red
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* The red component of the color value to assign to all pixels within the
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* rectangle.
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*
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* @param green
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* The green component of the color value to assign to all pixels within
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* the rectangle.
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*
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* @param blue
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* The blue component of the color value to assign to all pixels within the
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* rectangle.
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*
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* @param alpha
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* The alpha component of the color value to assign to all pixels within
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* the rectangle.
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*/
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*/
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static void __guac_common_surface_rect(guac_common_surface* dst, guac_common_rect* rect,
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static void __guac_common_surface_set(guac_common_surface* dst,
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int red, int green, int blue) {
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guac_common_rect* rect, int red, int green, int blue, int alpha) {
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int x, y;
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int x, y;
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int dst_stride;
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int dst_stride;
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unsigned char* dst_buffer;
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unsigned char* dst_buffer;
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uint32_t color = 0xFF000000 | (red << 16) | (green << 8) | blue;
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uint32_t color = (alpha << 24) | (red << 16) | (green << 8) | blue;
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int min_x = rect->width - 1;
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int min_x = rect->width - 1;
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int min_y = rect->height - 1;
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int min_y = rect->height - 1;
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@ -1063,7 +1128,7 @@ guac_common_surface* guac_common_surface_alloc(guac_client* client,
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pthread_mutex_init(&surface->_lock, NULL);
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pthread_mutex_init(&surface->_lock, NULL);
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/* Create corresponding Cairo surface */
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/* Create corresponding Cairo surface */
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surface->stride = cairo_format_stride_for_width(CAIRO_FORMAT_RGB24, w);
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surface->stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, w);
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surface->buffer = calloc(h, surface->stride);
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surface->buffer = calloc(h, surface->stride);
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/* Create corresponding heat map */
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/* Create corresponding heat map */
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@ -1130,7 +1195,7 @@ void guac_common_surface_resize(guac_common_surface* surface, int w, int h) {
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/* Re-initialize at new size */
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/* Re-initialize at new size */
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surface->width = w;
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surface->width = w;
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surface->height = h;
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surface->height = h;
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surface->stride = cairo_format_stride_for_width(CAIRO_FORMAT_RGB24, w);
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surface->stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, w);
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surface->buffer = calloc(h, surface->stride);
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surface->buffer = calloc(h, surface->stride);
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__guac_common_bound_rect(surface, &surface->clip_rect, NULL, NULL);
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__guac_common_bound_rect(surface, &surface->clip_rect, NULL, NULL);
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@ -1373,8 +1438,8 @@ complete:
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}
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}
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void guac_common_surface_rect(guac_common_surface* surface,
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void guac_common_surface_set(guac_common_surface* surface,
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int x, int y, int w, int h, int red, int green, int blue) {
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int x, int y, int w, int h, int red, int green, int blue, int alpha) {
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pthread_mutex_lock(&surface->_lock);
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pthread_mutex_lock(&surface->_lock);
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@ -1390,19 +1455,31 @@ void guac_common_surface_rect(guac_common_surface* surface,
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goto complete;
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goto complete;
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/* Update backing surface */
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/* Update backing surface */
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__guac_common_surface_rect(surface, &rect, red, green, blue);
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__guac_common_surface_set(surface, &rect, red, green, blue, alpha);
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if (rect.width <= 0 || rect.height <= 0)
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if (rect.width <= 0 || rect.height <= 0)
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goto complete;
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goto complete;
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/* Handle as normal draw if non-opaque */
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if (alpha != 0xFF) {
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/* Flush if not combining */
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if (!__guac_common_should_combine(surface, &rect, 0))
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__guac_common_surface_flush_deferred(surface);
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/* Always defer draws */
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__guac_common_mark_dirty(surface, &rect);
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}
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/* Defer if combining */
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/* Defer if combining */
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if (__guac_common_should_combine(surface, &rect, 1))
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else if (__guac_common_should_combine(surface, &rect, 1))
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__guac_common_mark_dirty(surface, &rect);
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__guac_common_mark_dirty(surface, &rect);
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/* Otherwise, flush and draw immediately */
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/* Otherwise, flush and draw immediately */
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else {
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else {
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__guac_common_surface_flush(surface);
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__guac_common_surface_flush(surface);
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guac_protocol_send_rect(socket, layer, rect.x, rect.y, rect.width, rect.height);
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guac_protocol_send_rect(socket, layer, rect.x, rect.y, rect.width, rect.height);
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guac_protocol_send_cfill(socket, GUAC_COMP_OVER, layer, red, green, blue, 0xFF);
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guac_protocol_send_cfill(socket, GUAC_COMP_OVER, layer, red, green, blue, alpha);
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surface->realized = 1;
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surface->realized = 1;
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}
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}
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@ -1444,8 +1521,12 @@ void guac_common_surface_reset_clip(guac_common_surface* surface) {
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*
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*
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* @param surface
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* @param surface
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* The surface to flush.
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* The surface to flush.
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*
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* @param opaque
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* Whether the rectangle being flushed contains only fully-opaque pixels.
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*/
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*/
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static void __guac_common_surface_flush_to_png(guac_common_surface* surface) {
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static void __guac_common_surface_flush_to_png(guac_common_surface* surface,
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int opaque) {
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if (surface->dirty) {
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if (surface->dirty) {
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@ -1457,9 +1538,29 @@ static void __guac_common_surface_flush_to_png(guac_common_surface* surface) {
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+ surface->dirty_rect.y * surface->stride
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+ surface->dirty_rect.y * surface->stride
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+ surface->dirty_rect.x * 4;
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+ surface->dirty_rect.x * 4;
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cairo_surface_t* rect = cairo_image_surface_create_for_data(buffer,
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cairo_surface_t* rect;
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CAIRO_FORMAT_RGB24, surface->dirty_rect.width,
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surface->dirty_rect.height, surface->stride);
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/* Use RGB24 if the image is fully opaque */
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if (opaque)
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rect = cairo_image_surface_create_for_data(buffer,
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CAIRO_FORMAT_RGB24, surface->dirty_rect.width,
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surface->dirty_rect.height, surface->stride);
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/* Otherwise ARGB32 is needed */
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else {
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rect = cairo_image_surface_create_for_data(buffer,
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CAIRO_FORMAT_ARGB32, surface->dirty_rect.width,
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surface->dirty_rect.height, surface->stride);
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/* Clear destination rect first */
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guac_protocol_send_rect(socket, layer,
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surface->dirty_rect.x, surface->dirty_rect.y,
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surface->dirty_rect.width, surface->dirty_rect.height);
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guac_protocol_send_cfill(socket, GUAC_COMP_ROUT, layer,
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0x00, 0x00, 0x00, 0xFF);
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}
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/* Send PNG for rect */
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/* Send PNG for rect */
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guac_client_stream_png(surface->client, socket, GUAC_COMP_OVER,
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guac_client_stream_png(surface->client, socket, GUAC_COMP_OVER,
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@ -1531,8 +1632,12 @@ static void __guac_common_surface_flush_to_jpeg(guac_common_surface* surface) {
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*
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*
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* @param surface
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* @param surface
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* The surface to flush.
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* The surface to flush.
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*
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* @param opaque
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* Whether the rectangle being flushed contains only fully-opaque pixels.
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*/
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*/
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static void __guac_common_surface_flush_to_webp(guac_common_surface* surface) {
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static void __guac_common_surface_flush_to_webp(guac_common_surface* surface,
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int opaque) {
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if (surface->dirty) {
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if (surface->dirty) {
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@ -1552,9 +1657,19 @@ static void __guac_common_surface_flush_to_webp(guac_common_surface* surface) {
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+ surface->dirty_rect.y * surface->stride
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+ surface->dirty_rect.y * surface->stride
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+ surface->dirty_rect.x * 4;
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+ surface->dirty_rect.x * 4;
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cairo_surface_t* rect = cairo_image_surface_create_for_data(buffer,
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cairo_surface_t* rect;
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CAIRO_FORMAT_RGB24, surface->dirty_rect.width,
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surface->dirty_rect.height, surface->stride);
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/* Use RGB24 if the image is fully opaque */
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if (opaque)
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rect = cairo_image_surface_create_for_data(buffer,
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CAIRO_FORMAT_RGB24, surface->dirty_rect.width,
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surface->dirty_rect.height, surface->stride);
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/* Otherwise ARGB32 is needed */
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else
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rect = cairo_image_surface_create_for_data(buffer,
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CAIRO_FORMAT_ARGB32, surface->dirty_rect.width,
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surface->dirty_rect.height, surface->stride);
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/* Send WebP for rect */
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/* Send WebP for rect */
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guac_client_stream_webp(surface->client, socket, GUAC_COMP_OVER, layer,
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guac_client_stream_webp(surface->client, socket, GUAC_COMP_OVER, layer,
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@ -1684,19 +1799,22 @@ static void __guac_common_surface_flush(guac_common_surface* surface) {
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flushed++;
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flushed++;
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int opaque = __guac_common_surface_is_opaque(surface,
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&surface->dirty_rect);
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/* Prefer WebP when reasonable */
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/* Prefer WebP when reasonable */
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if (__guac_common_surface_should_use_webp(surface,
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if (__guac_common_surface_should_use_webp(surface,
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&surface->dirty_rect))
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&surface->dirty_rect))
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__guac_common_surface_flush_to_webp(surface);
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__guac_common_surface_flush_to_webp(surface, opaque);
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/* If not WebP, JPEG is the next best (lossy) choice */
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/* If not WebP, JPEG is the next best (lossy) choice */
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else if (__guac_common_surface_should_use_jpeg(surface,
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else if (opaque && __guac_common_surface_should_use_jpeg(
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&surface->dirty_rect))
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surface, &surface->dirty_rect))
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__guac_common_surface_flush_to_jpeg(surface);
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__guac_common_surface_flush_to_jpeg(surface);
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/* Use PNG if no lossy formats are appropriate */
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/* Use PNG if no lossy formats are appropriate */
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else
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else
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__guac_common_surface_flush_to_png(surface);
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__guac_common_surface_flush_to_png(surface, opaque);
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}
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}
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@ -1755,7 +1873,7 @@ void guac_common_surface_dup(guac_common_surface* surface, guac_user* user,
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/* Get entire surface */
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/* Get entire surface */
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cairo_surface_t* rect = cairo_image_surface_create_for_data(
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cairo_surface_t* rect = cairo_image_surface_create_for_data(
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surface->buffer, CAIRO_FORMAT_RGB24,
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surface->buffer, CAIRO_FORMAT_ARGB32,
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surface->width, surface->height, surface->stride);
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surface->width, surface->height, surface->stride);
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/* Send PNG for rect */
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/* Send PNG for rect */
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@ -113,7 +113,8 @@ void guac_rdp_gdi_dstblt(rdpContext* context, DSTBLT_ORDER* dstblt) {
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case 0:
|
case 0:
|
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|
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/* Send black rectangle */
|
/* Send black rectangle */
|
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guac_common_surface_rect(current_surface, x, y, w, h, 0, 0, 0);
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guac_common_surface_set(current_surface, x, y, w, h,
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0x00, 0x00, 0x00, 0xFF);
|
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break;
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break;
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|
||||||
/* DSTINVERT */
|
/* DSTINVERT */
|
||||||
@ -128,7 +129,8 @@ void guac_rdp_gdi_dstblt(rdpContext* context, DSTBLT_ORDER* dstblt) {
|
|||||||
|
|
||||||
/* Whiteness */
|
/* Whiteness */
|
||||||
case 0xFF:
|
case 0xFF:
|
||||||
guac_common_surface_rect(current_surface, x, y, w, h, 0xFF, 0xFF, 0xFF);
|
guac_common_surface_set(current_surface, x, y, w, h,
|
||||||
|
0xFF, 0xFF, 0xFF, 0xFF);
|
||||||
break;
|
break;
|
||||||
|
|
||||||
/* Unsupported ROP3 */
|
/* Unsupported ROP3 */
|
||||||
@ -175,7 +177,8 @@ void guac_rdp_gdi_patblt(rdpContext* context, PATBLT_ORDER* patblt) {
|
|||||||
|
|
||||||
/* If blackness, send black rectangle */
|
/* If blackness, send black rectangle */
|
||||||
case 0x00:
|
case 0x00:
|
||||||
guac_common_surface_rect(current_surface, x, y, w, h, 0, 0, 0);
|
guac_common_surface_set(current_surface, x, y, w, h,
|
||||||
|
0x00, 0x00, 0x00, 0xFF);
|
||||||
break;
|
break;
|
||||||
|
|
||||||
/* If NOP, do nothing */
|
/* If NOP, do nothing */
|
||||||
@ -185,15 +188,17 @@ void guac_rdp_gdi_patblt(rdpContext* context, PATBLT_ORDER* patblt) {
|
|||||||
/* If operation is just a copy, send foreground only */
|
/* If operation is just a copy, send foreground only */
|
||||||
case 0xCC:
|
case 0xCC:
|
||||||
case 0xF0:
|
case 0xF0:
|
||||||
guac_common_surface_rect(current_surface, x, y, w, h,
|
guac_common_surface_set(current_surface, x, y, w, h,
|
||||||
(patblt->foreColor >> 16) & 0xFF,
|
(patblt->foreColor >> 16) & 0xFF,
|
||||||
(patblt->foreColor >> 8 ) & 0xFF,
|
(patblt->foreColor >> 8 ) & 0xFF,
|
||||||
(patblt->foreColor ) & 0xFF);
|
(patblt->foreColor ) & 0xFF,
|
||||||
|
0xFF);
|
||||||
break;
|
break;
|
||||||
|
|
||||||
/* If whiteness, send white rectangle */
|
/* If whiteness, send white rectangle */
|
||||||
case 0xFF:
|
case 0xFF:
|
||||||
guac_common_surface_rect(current_surface, x, y, w, h, 0xFF, 0xFF, 0xFF);
|
guac_common_surface_set(current_surface, x, y, w, h,
|
||||||
|
0xFF, 0xFF, 0xFF, 0xFF);
|
||||||
break;
|
break;
|
||||||
|
|
||||||
/* Otherwise, invert entire rect */
|
/* Otherwise, invert entire rect */
|
||||||
@ -250,7 +255,8 @@ void guac_rdp_gdi_memblt(rdpContext* context, MEMBLT_ORDER* memblt) {
|
|||||||
|
|
||||||
/* If blackness, send black rectangle */
|
/* If blackness, send black rectangle */
|
||||||
case 0x00:
|
case 0x00:
|
||||||
guac_common_surface_rect(current_surface, x, y, w, h, 0, 0, 0);
|
guac_common_surface_set(current_surface, x, y, w, h,
|
||||||
|
0x00, 0x00, 0x00, 0xFF);
|
||||||
break;
|
break;
|
||||||
|
|
||||||
/* If NOP, do nothing */
|
/* If NOP, do nothing */
|
||||||
@ -294,7 +300,8 @@ void guac_rdp_gdi_memblt(rdpContext* context, MEMBLT_ORDER* memblt) {
|
|||||||
|
|
||||||
/* If whiteness, send white rectangle */
|
/* If whiteness, send white rectangle */
|
||||||
case 0xFF:
|
case 0xFF:
|
||||||
guac_common_surface_rect(current_surface, x, y, w, h, 0xFF, 0xFF, 0xFF);
|
guac_common_surface_set(current_surface, x, y, w, h,
|
||||||
|
0xFF, 0xFF, 0xFF, 0xFF);
|
||||||
break;
|
break;
|
||||||
|
|
||||||
/* Otherwise, use transfer */
|
/* Otherwise, use transfer */
|
||||||
@ -330,10 +337,11 @@ void guac_rdp_gdi_opaquerect(rdpContext* context, OPAQUE_RECT_ORDER* opaque_rect
|
|||||||
int w = opaque_rect->nWidth;
|
int w = opaque_rect->nWidth;
|
||||||
int h = opaque_rect->nHeight;
|
int h = opaque_rect->nHeight;
|
||||||
|
|
||||||
guac_common_surface_rect(current_surface, x, y, w, h,
|
guac_common_surface_set(current_surface, x, y, w, h,
|
||||||
(color >> 16) & 0xFF,
|
(color >> 16) & 0xFF,
|
||||||
(color >> 8 ) & 0xFF,
|
(color >> 8 ) & 0xFF,
|
||||||
(color ) & 0xFF);
|
(color ) & 0xFF,
|
||||||
|
0xFF);
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -136,10 +136,12 @@ void guac_rdp_glyph_begindraw(rdpContext* context,
|
|||||||
/* Convert background color */
|
/* Convert background color */
|
||||||
bgcolor = guac_rdp_convert_color(context, bgcolor);
|
bgcolor = guac_rdp_convert_color(context, bgcolor);
|
||||||
|
|
||||||
guac_common_surface_rect(rdp_client->current_surface, x, y, width, height,
|
guac_common_surface_set(rdp_client->current_surface,
|
||||||
(bgcolor & 0xFF0000) >> 16,
|
x, y, width, height,
|
||||||
(bgcolor & 0x00FF00) >> 8,
|
(bgcolor & 0xFF0000) >> 16,
|
||||||
bgcolor & 0x0000FF);
|
(bgcolor & 0x00FF00) >> 8,
|
||||||
|
(bgcolor & 0x0000FF),
|
||||||
|
0xFF);
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -773,13 +773,14 @@ void __guac_terminal_display_flush_clear(guac_terminal_display* display) {
|
|||||||
}
|
}
|
||||||
|
|
||||||
/* Send rect */
|
/* Send rect */
|
||||||
guac_common_surface_rect(
|
guac_common_surface_set(
|
||||||
display->display_surface,
|
display->display_surface,
|
||||||
col * display->char_width,
|
col * display->char_width,
|
||||||
row * display->char_height,
|
row * display->char_height,
|
||||||
rect_width * display->char_width,
|
rect_width * display->char_width,
|
||||||
rect_height * display->char_height,
|
rect_height * display->char_height,
|
||||||
guac_color->red, guac_color->green, guac_color->blue);
|
guac_color->red, guac_color->green, guac_color->blue,
|
||||||
|
0xFF);
|
||||||
|
|
||||||
} /* end if clear operation */
|
} /* end if clear operation */
|
||||||
|
|
||||||
|
Loading…
Reference in New Issue
Block a user