* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
+ * Matt Hortman
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
#include <freerdp/freerdp.h>
#include <guacamole/client.h>
+#include <guacamole/error.h>
#include "client.h"
#include "rdp_glyph.h"
void guac_rdp_glyph_new(rdpContext* context, rdpGlyph* glyph) {
- guac_client* client = ((rdp_freerdp_context*) context)->client;
- guac_client_log_info(client, "guac_rdp_glyph_new()");
+
+ int x, y, i;
+ int stride;
+ unsigned char* image_buffer;
+ unsigned char* image_buffer_row;
+
+ unsigned char* data = glyph->aj;
+ int width = glyph->cx;
+ int height = glyph->cy;
+
+ /* Init Cairo buffer */
+ stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, width);
+ image_buffer = malloc(height*stride);
+ image_buffer_row = image_buffer;
+
+ /* Copy image data from image data to buffer */
+ for (y = 0; y<height; y++) {
+
+ unsigned int* image_buffer_current;
+
+ /* Get current buffer row, advance to next */
+ image_buffer_current = (unsigned int*) image_buffer_row;
+ image_buffer_row += stride;
+
+ for (x = 0; x<width;) {
+
+ /* Get byte from image data */
+ unsigned int v = *(data++);
+
+ /* Read bits, write pixels */
+ for (i = 0; i<8 && x<width; i++, x++) {
+
+ /* Output RGB */
+ if (v & 0x80)
+ *(image_buffer_current++) = 0xFF000000;
+ else
+ *(image_buffer_current++) = 0x00000000;
+
+ /* Next bit */
+ v <<= 1;
+
+ }
+
+ }
+ }
+
+ /* Store glyph surface */
+ ((guac_rdp_glyph*) glyph)->surface = cairo_image_surface_create_for_data(
+ image_buffer, CAIRO_FORMAT_ARGB32, width, height, stride);
+
}
void guac_rdp_glyph_draw(rdpContext* context, rdpGlyph* glyph, int x, int y) {
+
guac_client* client = ((rdp_freerdp_context*) context)->client;
- guac_client_log_info(client, "guac_rdp_glyph_draw()");
+ rdp_guac_client_data* guac_client_data = (rdp_guac_client_data*) client->data;
+
+ /* Do not attempt to draw glyphs if glyph drawing is not begun */
+ if (guac_client_data->glyph_cairo == NULL)
+ return;
+
+ /* Use glyph as mask */
+ cairo_mask_surface(
+ guac_client_data->glyph_cairo,
+ ((guac_rdp_glyph*) glyph)->surface, x, y);
+
}
void guac_rdp_glyph_free(rdpContext* context, rdpGlyph* glyph) {
- guac_client* client = ((rdp_freerdp_context*) context)->client;
- guac_client_log_info(client, "guac_rdp_glyph_free()");
+
+ unsigned char* image_buffer = cairo_image_surface_get_data(
+ ((guac_rdp_glyph*) glyph)->surface);
+
+ /* Free surface */
+ cairo_surface_destroy(((guac_rdp_glyph*) glyph)->surface);
+ free(image_buffer);
+
}
void guac_rdp_glyph_begindraw(rdpContext* context,
- int x, int y, int width, int height, uint32 bgcolor, uint32 fgcolor) {
+ int x, int y, int width, int height, uint32 fgcolor, uint32 bgcolor) {
+
guac_client* client = ((rdp_freerdp_context*) context)->client;
- guac_client_log_info(client, "guac_rdp_glyph_begindraw()");
+ rdp_guac_client_data* guac_client_data =
+ (rdp_guac_client_data*) client->data;
+
+ /* Convert foreground color */
+ fgcolor = freerdp_color_convert_var(fgcolor,
+ context->instance->settings->color_depth, 32,
+ ((rdp_freerdp_context*) context)->clrconv);
+
+ /* Fill background with color if specified */
+ if (width != 0 && height != 0) {
+
+ /* Prepare for opaque glyphs */
+ guac_client_data->glyph_surface =
+ guac_client_data->opaque_glyph_surface;
+
+ /* Create cairo instance */
+ guac_client_data->glyph_cairo = cairo_create(
+ guac_client_data->glyph_surface);
+
+ /* Convert background color */
+ bgcolor = freerdp_color_convert_var(bgcolor,
+ context->instance->settings->color_depth, 32,
+ ((rdp_freerdp_context*) context)->clrconv);
+
+ /* Fill background */
+ cairo_rectangle(guac_client_data->glyph_cairo,
+ x, y, width, height);
+
+ cairo_set_source_rgb(guac_client_data->glyph_cairo,
+ ((bgcolor & 0xFF0000) >> 16) / 255.0,
+ ((bgcolor & 0x00FF00) >> 8 ) / 255.0,
+ ( bgcolor & 0x0000FF ) / 255.0);
+
+ cairo_fill(guac_client_data->glyph_cairo);
+
+ }
+
+ /* Otherwise, prepare for transparent glyphs */
+ else {
+
+ /* Select transparent glyph surface */
+ guac_client_data->glyph_surface =
+ guac_client_data->trans_glyph_surface;
+
+ guac_client_data->glyph_cairo = cairo_create(
+ guac_client_data->glyph_surface);
+
+ /* Clear surface */
+ cairo_set_operator(guac_client_data->glyph_cairo,
+ CAIRO_OPERATOR_SOURCE);
+
+ cairo_set_source_rgba(guac_client_data->glyph_cairo, 0, 0, 0, 0);
+ cairo_paint(guac_client_data->glyph_cairo);
+
+ /* Restore operator */
+ cairo_set_operator(guac_client_data->glyph_cairo,
+ CAIRO_OPERATOR_OVER);
+
+ }
+
+ /* Prepare for glyph drawing */
+ cairo_set_source_rgb(guac_client_data->glyph_cairo,
+ ((fgcolor & 0xFF0000) >> 16) / 255.0,
+ ((fgcolor & 0x00FF00) >> 8 ) / 255.0,
+ ( fgcolor & 0x0000FF ) / 255.0);
+
}
void guac_rdp_glyph_enddraw(rdpContext* context,
- int x, int y, int width, int height, uint32 bgcolor, uint32 fgcolor) {
+ int x, int y, int width, int height, uint32 fgcolor, uint32 bgcolor) {
+
guac_client* client = ((rdp_freerdp_context*) context)->client;
- guac_client_log_info(client, "guac_rdp_glyph_enddraw()");
+ rdp_guac_client_data* guac_client_data = (rdp_guac_client_data*) client->data;
+ const guac_layer* current_layer = ((rdp_guac_client_data*) client->data)->current_surface;
+
+ /* Use glyph surface to provide image data for glyph rectangle */
+ cairo_surface_t* glyph_surface = guac_client_data->glyph_surface;
+ int stride = cairo_image_surface_get_stride(glyph_surface);
+
+ /* Ensure data is ready */
+ cairo_surface_flush(glyph_surface);
+
+ /* Create surface for subsection with text */
+ cairo_surface_t* surface = cairo_image_surface_create_for_data(
+ cairo_image_surface_get_data(glyph_surface) + 4*x + y*stride,
+ cairo_image_surface_get_format(glyph_surface),
+ width, height, stride);
+
+ /* Send surface with all glyphs to layer */
+ guac_protocol_send_png(client->socket,
+ GUAC_COMP_OVER, current_layer, x, y,
+ surface);
+
+ /* Destroy surface */
+ cairo_surface_destroy(surface);
+
+ /* Destroy cairo instance */
+ cairo_destroy(guac_client_data->glyph_cairo);
+
}
projects / libguac-client-rdp.git / blobdiff