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Initial glyph support.

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This commit is contained in:
Michael Jumper 2012-02-09 10:09:14 -08:00
parent fd8b76b410
commit d874058a8c
1 changed files with 72 additions and 3 deletions
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75
protocols/rdp/src/rdp_glyph.c
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@ -43,18 +43,87 @@
#include "rdp_glyph.h"
void guac_rdp_glyph_new(rdpContext* context, rdpGlyph* glyph) {
/* Allocate buffer */
guac_client* client = ((rdp_freerdp_context*) context)->client;
guac_client_log_info(client, "guac_rdp_glyph_new()");
guac_socket* socket = client->socket;
guac_layer* layer = guac_client_alloc_buffer(client);
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;
cairo_surface_t* surface;
/* 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;
}
}
}
surface = cairo_image_surface_create_for_data(image_buffer, CAIRO_FORMAT_ARGB32, width, height, stride);
guac_protocol_send_png(socket, GUAC_COMP_SRC, layer, 0, 0, surface);
guac_socket_flush(socket);
/* Free surface */
cairo_surface_destroy(surface);
free(image_buffer);
/* Store layer */
((guac_rdp_glyph*) glyph)->layer = layer;
}
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()");
const guac_layer* current_layer = ((rdp_guac_client_data*) client->data)->current_surface;
/* Draw glyph */
guac_protocol_send_copy(client->socket,
((guac_rdp_glyph*) glyph)->layer, 0, 0, glyph->cx, glyph->cy,
GUAC_COMP_OVER, current_layer, 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()");
guac_client_free_buffer(client, ((guac_rdp_glyph*) glyph)->layer);
}
void guac_rdp_glyph_begindraw(rdpContext* context,