/*
Copyright (C) 2009 Red Hat, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see .
*/
#include "common.h"
#include "red_drawable.h"
#include "pixels_source_p.h"
#include "debug.h"
#include "x_platform.h"
#include "utils.h"
#include "gl_utils.h"
#include
#include
#include
static inline void copy_to_gldrawable_from_gltexture(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y)
{
float text_x1, text_x2;
float text_y1, text_y2;
int vertex_x1, vertex_x2;
int vertex_y1, vertex_y2;
GLXPbuffer pbuffer;
GLXContext context;
RenderType rendertype;
Window win;
text_x1 = (float)src_x / source->gl.width_powed;
text_x2 = text_x1 + (float)(area.right - area.left) / source->gl.width_powed;
text_y1 = ((float)source->gl.height - (area.bottom - area.top) - src_y) /
source->gl.height_powed;
text_y2 = text_y1 + (float)(area.bottom - area.top) / source->gl.height_powed;
vertex_x1 = area.left + offset.x;
vertex_y1 = dest->source.x_drawable.height - (area.top + offset.y) - (area.bottom - area.top);
vertex_x2 = vertex_x1 + (area.right - area.left);
vertex_y2 = vertex_y1 + (area.bottom - area.top);
glEnable(GL_TEXTURE_2D);
rendertype = source->gl.rendertype;
if (rendertype == RENDER_TYPE_FBO) {
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
} else {
win = source->gl.win;
context = source->gl.context;
glXMakeCurrent(XPlatform::get_display(), win, context);
}
glBindTexture(GL_TEXTURE_2D, source->gl.tex);
glBegin(GL_QUADS);
glTexCoord2f(text_x1, text_y1);
glVertex2i(vertex_x1, vertex_y1);
glTexCoord2f(text_x1, text_y2);
glVertex2i(vertex_x1, vertex_y2);
glTexCoord2f(text_x2, text_y2);
glVertex2i(vertex_x2, vertex_y2);
glTexCoord2f(text_x2, text_y1);
glVertex2i(vertex_x2, vertex_y1);
glEnd();
if (rendertype == RENDER_TYPE_FBO) {
GLuint fbo;
fbo = source->gl.fbo;
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo);
} else {
pbuffer = source->gl.pbuff;
glXMakeCurrent(XPlatform::get_display(), pbuffer, context);
}
}
static inline void copy_to_gldrawable_from_pixmap(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y)
{
uint8_t *addr;
GLXContext context = NULL;
GLXPbuffer pbuffer;
RenderType rendertype;
Window win;
rendertype = dest->source.x_drawable.rendertype;
if (rendertype == RENDER_TYPE_FBO) {
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
glBindTexture(GL_TEXTURE_2D, 0);
} else {
context = dest->source.x_drawable.context;
win = dest->source.x_drawable.drawable;
glXMakeCurrent(XPlatform::get_display(), win, context);
glDisable(GL_TEXTURE_2D);
}
glPixelStorei(GL_UNPACK_ROW_LENGTH, source->pixmap.x_image->bytes_per_line / 4);
glPixelZoom(1, -1);
addr = (uint8_t *)source->pixmap.x_image->data;
addr += (src_x * 4 + src_y * source->pixmap.x_image->bytes_per_line);
glWindowPos2i(area.left + offset.x, dest->source.x_drawable.height -
(area.top + offset.y)); //+ (area.bottom - area.top)));
glDrawPixels(area.right - area.left, area.bottom - area.top,
GL_BGRA, GL_UNSIGNED_BYTE, addr);
if (rendertype == RENDER_TYPE_FBO) {
GLuint fbo;
fbo = dest->source.x_drawable.fbo;
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo);
} else {
pbuffer = dest->source.x_drawable.pbuff;
glXMakeCurrent(XPlatform::get_display(), pbuffer, context);
}
}
static inline void copy_to_drawable_from_drawable(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y)
{
XGCValues gc_vals;
gc_vals.function = GXcopy;
XChangeGC(XPlatform::get_display(), dest->source.x_drawable.gc, GCFunction, &gc_vals);
XCopyArea(XPlatform::get_display(), source->x_drawable.drawable,
dest->source.x_drawable.drawable, dest->source.x_drawable.gc,
src_x, src_y,
area.right - area.left, area.bottom - area.top,
area.left + offset.x, area.top + offset.y);
}
static inline void copy_to_drawable_from_pixmap(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y)
{
XGCValues gc_vals;
gc_vals.function = GXcopy;
XChangeGC(XPlatform::get_display(), dest->source.x_drawable.gc, GCFunction, &gc_vals);
XPutImage(XPlatform::get_display(), dest->source.x_drawable.drawable,
dest->source.x_drawable.gc, source->pixmap.x_image, src_x,
src_y, area.left + offset.x, area.top + offset.y,
area.right - area.left, area.bottom - area.top);
}
static inline void copy_to_drawable_from_shmdrawable(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y)
{
XGCValues gc_vals;
gc_vals.function = GXcopy;
XChangeGC(XPlatform::get_display(), dest->source.x_drawable.gc, GCFunction, &gc_vals);
XShmPutImage(XPlatform::get_display(), dest->source.x_drawable.drawable,
dest->source.x_drawable.gc, source->x_shm_drawable.x_image,
src_x, src_y, area.left + offset.x, area.top + offset.y,
area.right - area.left, area.bottom - area.top, false);
XSync(XPlatform::get_display(), 0);
}
static inline void copy_to_x_drawable(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y)
{
switch (source->type) {
case PIXELS_SOURCE_TYPE_X_DRAWABLE:
copy_to_drawable_from_drawable(dest, area, offset, source, src_x, src_y);
break;
case PIXELS_SOURCE_TYPE_PIXMAP:
copy_to_drawable_from_pixmap(dest, area, offset, source, src_x, src_y);
break;
case PIXELS_SOURCE_TYPE_XSHM_DRAWABLE:
copy_to_drawable_from_shmdrawable(dest, area, offset, source, src_x, src_y);
break;
default:
THROW("invalid source type %d", source->type);
}
}
static inline void copy_to_gl_drawable(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y)
{
switch (source->type) {
case PIXELS_SOURCE_TYPE_GL_TEXTURE:
copy_to_gldrawable_from_gltexture(dest, area, offset, source, src_x, src_y);
break;
case PIXELS_SOURCE_TYPE_PIXMAP:
copy_to_gldrawable_from_pixmap(dest, area, offset, source, src_x, src_y);
break;
default:
THROW("invalid source type %d", source->type);
}
}
static inline void copy_to_pixmap_from_drawable(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y)
{
LOG_WARN("not implemented");
}
static inline void copy_to_pixmap_from_shmdrawable(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y)
{
pixman_image_t *dest_surface = dest->source.pixmap.pixman_image;
pixman_image_t *src_surface = source->x_shm_drawable.pixman_image;
pixman_image_composite32(PIXMAN_OP_SRC,
src_surface, NULL, dest_surface,
src_x + offset.x,
src_y + offset.y,
0, 0,
area.left + offset.x,
area.top + offset.y,
area.right - area.left,
area.bottom - area.top);
}
static inline void copy_to_pixmap_from_pixmap(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y)
{
pixman_image_t *dest_surface = dest->source.pixmap.pixman_image;
pixman_image_t *src_surface = source->pixmap.pixman_image;
pixman_image_composite32(PIXMAN_OP_SRC,
src_surface, NULL, dest_surface,
src_x + offset.x,
src_y + offset.y,
0, 0,
area.left + offset.x,
area.top + offset.y,
area.right - area.left,
area.bottom - area.top);
}
static inline void copy_to_pixmap_from_gltexture(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y)
{
int y, height;
GLXContext context = NULL;
GLXPbuffer pbuffer;
Window win;
RenderType rendertype;
y = source->gl.height - src_y;
height = area.bottom - area.top;
rendertype = source->gl.rendertype;
if (rendertype == RENDER_TYPE_FBO) {
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, source->gl.fbo);
glBindTexture(GL_TEXTURE_2D, 0);
} else {
context = source->gl.context;
pbuffer = source->gl.pbuff;
glXMakeCurrent(XPlatform::get_display(), pbuffer, context);
glDisable(GL_TEXTURE_2D);
}
glReadBuffer(GL_COLOR_ATTACHMENT0_EXT);
glPixelStorei(GL_PACK_ROW_LENGTH,
dest->source.pixmap.x_image->bytes_per_line / 4);
while (height > 0) {
glReadPixels(src_x, y - height, area.right - area.left, 1,
GL_BGRA, GL_UNSIGNED_BYTE,
dest->source.pixmap.x_image->data +
(area.left + offset.x) * 4 +
(area.top + offset.y + height - 1) *
dest->source.pixmap.x_image->bytes_per_line);
height--;
}
if (rendertype != RENDER_TYPE_FBO) {
win = source->gl.win;
glXMakeCurrent(XPlatform::get_display(), win, context);
}
}
static inline void copy_to_pixmap(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y)
{
switch (source->type) {
case PIXELS_SOURCE_TYPE_GL_TEXTURE:
copy_to_pixmap_from_gltexture(dest, area, offset, source, src_x, src_y);
break;
case PIXELS_SOURCE_TYPE_X_DRAWABLE:
copy_to_pixmap_from_drawable(dest, area, offset, source, src_x, src_y);
break;
case PIXELS_SOURCE_TYPE_PIXMAP:
copy_to_pixmap_from_pixmap(dest, area, offset, source, src_x, src_y);
break;
case PIXELS_SOURCE_TYPE_XSHM_DRAWABLE:
copy_to_pixmap_from_shmdrawable(dest, area, offset, source, src_x, src_y);
break;
default:
THROW("invalid source type %d", source->type);
}
}
void RedDrawable::copy_pixels(const PixelsSource& src, int src_x, int src_y, const SpiceRect& area)
{
PixelsSource_p* source = (PixelsSource_p*)src.get_opaque();
RedDrawable_p* dest = (RedDrawable_p*)get_opaque();
switch (dest->source.type) {
case PIXELS_SOURCE_TYPE_GL_DRAWABLE:
copy_to_gl_drawable(dest, area, _origin, source, src_x + src._origin.x,
src_y + src._origin.y);
break;
case PIXELS_SOURCE_TYPE_X_DRAWABLE:
copy_to_x_drawable(dest, area, _origin, source, src_x + src._origin.x,
src_y + src._origin.y);
break;
case PIXELS_SOURCE_TYPE_PIXMAP:
copy_to_pixmap(dest, area, _origin, source, src_x + src._origin.x, src_y + src._origin.y);
break;
default:
THROW("invalid dest type %d", dest->source.type);
}
}
static inline void blend_to_drawable(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y)
{
LOG_WARN("not implemented");
}
static inline void blend_to_pixmap_from_drawable(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y)
{
LOG_WARN("not implemented");
}
static inline void blend_to_pixmap_from_pixmap(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y)
{
pixman_image_t *dest_surface = dest->source.pixmap.pixman_image;
pixman_image_t *src_surface = source->pixmap.pixman_image;
pixman_image_composite32 (PIXMAN_OP_ATOP,
src_surface, NULL, dest_surface,
src_x + offset.x,
src_y + offset.y,
0, 0,
area.left + offset.x,
area.top + offset.y,
area.right - area.left,
area.bottom - area.top);
}
static inline void blend_to_pixmap(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y)
{
switch (source->type) {
case PIXELS_SOURCE_TYPE_X_DRAWABLE:
blend_to_pixmap_from_drawable(dest, area, offset, source, src_x, src_y);
break;
case PIXELS_SOURCE_TYPE_PIXMAP:
blend_to_pixmap_from_pixmap(dest, area, offset, source, src_x, src_y);
break;
default:
THROW("invalid source type %d", source->type);
}
}
void RedDrawable::blend_pixels(const PixelsSource& src, int src_x, int src_y, const SpiceRect& area)
{
PixelsSource_p* source = (PixelsSource_p*)src.get_opaque();
RedDrawable_p* dest = (RedDrawable_p*)get_opaque();
switch (dest->source.type) {
case PIXELS_SOURCE_TYPE_X_DRAWABLE:
blend_to_drawable(dest, area, _origin, source, src_x + src._origin.x,
src_y + src._origin.y);
break;
case PIXELS_SOURCE_TYPE_PIXMAP:
blend_to_pixmap(dest, area, _origin, source, src_x + src._origin.x, src_y + src._origin.y);
break;
default:
THROW("invalid dest type %d", dest->source.type);
}
}
static inline void combine_to_drawable(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y,
RedDrawable::CombineOP op)
{
LOG_WARN("not implemented");
}
static inline void combine_to_pixmap_from_drawable(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y,
RedDrawable::CombineOP op)
{
LOG_WARN("not implemented");
}
static inline void combine_to_pixmap_from_pixmap(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y,
RedDrawable::CombineOP op)
{
pixman_image_t *dest_surface = dest->source.pixmap.pixman_image;
pixman_image_t *src_surface = source->pixmap.pixman_image;
SpiceROP rop;
switch (op) {
case RedDrawable::OP_COPY:
rop = SPICE_ROP_COPY;
break;
case RedDrawable::OP_AND:
rop = SPICE_ROP_AND;
break;
case RedDrawable::OP_XOR:
rop = SPICE_ROP_XOR;
break;
default:
THROW("invalid op %d", op);
}
if (pixman_image_get_depth (src_surface) == 1) {
pixman_color_t white = { 0xffff, 0xffff, 0xffff, 0xffff };
pixman_image_t *solid;
pixman_image_t *temp;
/* Create a temporary rgb32 image that is black where mask is 0
and white where mask is 1 */
temp = pixman_image_create_bits(pixman_image_get_depth(dest_surface) == 24 ?
PIXMAN_x8r8g8b8 : PIXMAN_a8r8g8b8,
area.right - area.left,
area.bottom - area.top, NULL, 0);
solid = pixman_image_create_solid_fill(&white);
pixman_image_composite32(PIXMAN_OP_SRC,
solid, src_surface, temp,
0, 0,
src_x + offset.x,
src_y + offset.y,
0, 0,
area.right - area.left,
area.bottom - area.top);
pixman_image_unref(solid);
/* ROP the temp image on the destination */
spice_pixman_blit_rop(dest_surface,
temp,
0,
0,
area.left + offset.x,
area.top + offset.y,
area.right - area.left,
area.bottom - area.top,
rop);
pixman_image_unref(temp);
} else {
spice_pixman_blit_rop(dest_surface,
src_surface,
src_x + offset.x,
src_y + offset.y,
area.left + offset.x,
area.top + offset.y,
area.right - area.left,
area.bottom - area.top,
rop);
}
}
static inline void combine_to_pixmap(const RedDrawable_p* dest,
const SpiceRect& area,
const SpicePoint& offset,
const PixelsSource_p* source,
int src_x, int src_y,
RedDrawable::CombineOP op)
{
switch (source->type) {
case PIXELS_SOURCE_TYPE_X_DRAWABLE:
combine_to_pixmap_from_drawable(dest, area, offset, source, src_x, src_y, op);
break;
case PIXELS_SOURCE_TYPE_PIXMAP:
combine_to_pixmap_from_pixmap(dest, area, offset, source, src_x, src_y, op);
break;
default:
THROW("invalid source type %d", source->type);
}
}
void RedDrawable::combine_pixels(const PixelsSource& src, int src_x, int src_y, const SpiceRect& area,
CombineOP op)
{
PixelsSource_p* source = (PixelsSource_p*)src.get_opaque();
RedDrawable_p* dest = (RedDrawable_p*)get_opaque();
switch (dest->source.type) {
case PIXELS_SOURCE_TYPE_X_DRAWABLE:
combine_to_drawable(dest, area, _origin, source, src_x + src._origin.x,
src_y + src._origin.y, op);
break;
case PIXELS_SOURCE_TYPE_PIXMAP:
combine_to_pixmap(dest, area, _origin, source, src_x + src._origin.x,
src_y + src._origin.y, op);
break;
default:
THROW("invalid dest type %d", dest->source.type);
}
}
void RedDrawable::erase_rect(const SpiceRect& area, rgb32_t color)
{
LOG_WARN("not implemented");
}
static inline void fill_drawable(RedDrawable_p* dest, const SpiceRect& area, rgb32_t color,
const SpicePoint& offset)
{
Drawable drawable = dest->source.x_drawable.drawable;
GC gc = dest->source.x_drawable.gc;
Colormap color_map = DefaultColormap(XPlatform::get_display(),
DefaultScreen(XPlatform::get_display()));
XColor x_color;
x_color.red = (uint16_t)rgb32_get_red(color) << 8;
x_color.green = (uint16_t)rgb32_get_green(color) << 8;
x_color.blue = (uint16_t)rgb32_get_blue(color) << 8;
x_color.flags = DoRed | DoGreen | DoBlue;
//todo: optimize color map
if (!XAllocColor(XPlatform::get_display(), color_map, &x_color)) {
LOG_WARN("color map failed");
}
XGCValues gc_vals;
gc_vals.foreground = x_color.pixel;
gc_vals.function = GXcopy;
gc_vals.fill_style = FillSolid;
XChangeGC(XPlatform::get_display(), gc, GCFunction | GCForeground | GCFillStyle, &gc_vals);
XFillRectangle(XPlatform::get_display(), drawable,
gc, area.left + offset.x, area.top + offset.y,
area.right - area.left, area.bottom - area.top);
}
static inline void fill_gl_drawable(RedDrawable_p* dest, const SpiceRect& area, rgb32_t color,
const SpicePoint& offset)
{
int vertex_x1, vertex_x2;
int vertex_y1, vertex_y2;
GLXContext context;
context = glXGetCurrentContext();
if (!context) {
return;
}
vertex_x1 = area.left + offset.x;
vertex_y1 = dest->source.x_drawable.height - (area.top + offset.y) - (area.bottom - area.top);
vertex_x2 = vertex_x1 + (area.right - area.left);
vertex_y2 = vertex_y1 + (area.bottom - area.top);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
glColor3f(rgb32_get_red(color), rgb32_get_green(color),
rgb32_get_blue(color));
glBegin(GL_QUADS);
glVertex2i(vertex_x1, vertex_y1);
glVertex2i(vertex_x1, vertex_y2);
glVertex2i(vertex_x2, vertex_y2);
glVertex2i(vertex_x2, vertex_y1);
glEnd();
glFlush();
glColor3f(1, 1, 1);
}
static inline void fill_pixmap(RedDrawable_p* dest, const SpiceRect& area, rgb32_t color,
const SpicePoint& offset)
{
pixman_image_t *dest_surface = dest->source.pixmap.pixman_image;
spice_pixman_fill_rect(dest_surface,
area.left + offset.x, area.top + offset.y,
area.right - area.left,
area.bottom - area.top,
color);
}
void RedDrawable::fill_rect(const SpiceRect& area, rgb32_t color)
{
RedDrawable_p* dest = (RedDrawable_p*)get_opaque();
switch (dest->source.type) {
case PIXELS_SOURCE_TYPE_GL_DRAWABLE:
fill_gl_drawable(dest, area, color, _origin);
break;
case PIXELS_SOURCE_TYPE_X_DRAWABLE:
fill_drawable(dest, area, color, _origin);
break;
case PIXELS_SOURCE_TYPE_PIXMAP:
fill_pixmap(dest, area, color, _origin);
break;
default:
THROW("invalid dest type %d", dest->source.type);
}
}
static inline void frame_drawable(RedDrawable_p* dest, const SpiceRect& area, rgb32_t color,
const SpicePoint& offset)
{
Drawable drawable = dest->source.x_drawable.drawable;
GC gc = dest->source.x_drawable.gc;
Colormap color_map = DefaultColormap(XPlatform::get_display(),
DefaultScreen(XPlatform::get_display()));
XColor x_color;
x_color.red = (uint16_t)rgb32_get_red(color) << 8;
x_color.green = (uint16_t)rgb32_get_green(color) << 8;
x_color.blue = (uint16_t)rgb32_get_blue(color) << 8;
x_color.flags = DoRed | DoGreen | DoBlue;
//todo: optimize color map
if (!XAllocColor(XPlatform::get_display(), color_map, &x_color)) {
LOG_WARN("color map failed");
}
XGCValues gc_vals;
gc_vals.foreground = x_color.pixel;
gc_vals.function = GXcopy;
gc_vals.fill_style = FillSolid;
XChangeGC(XPlatform::get_display(), gc, GCFunction | GCForeground | GCFillStyle, &gc_vals);
XFillRectangle(XPlatform::get_display(), drawable,
gc, area.left + offset.x, area.top + offset.y,
area.right - area.left, area.bottom - area.top);
}
static inline void frame_pixmap(RedDrawable_p* dest, const SpiceRect& area, rgb32_t color,
const SpicePoint& offset)
{
pixman_image_t *dest_surface = dest->source.pixmap.pixman_image;
spice_pixman_fill_rect(dest_surface,
area.left + offset.x, area.top + offset.y,
area.right - area.left,
1,
color);
spice_pixman_fill_rect(dest_surface,
area.left + offset.x, area.bottom + offset.y,
area.right - area.left,
1,
color);
spice_pixman_fill_rect(dest_surface,
area.left + offset.x, area.top + offset.y,
1,
area.bottom - area.top,
color);
spice_pixman_fill_rect(dest_surface,
area.right + offset.x, area.top + offset.y,
1,
area.bottom - area.top,
color);
}
void RedDrawable::frame_rect(const SpiceRect& area, rgb32_t color)
{
RedDrawable_p* dest = (RedDrawable_p*)get_opaque();
switch (dest->source.type) {
case PIXELS_SOURCE_TYPE_X_DRAWABLE:
frame_drawable(dest, area, color, _origin);
break;
case PIXELS_SOURCE_TYPE_PIXMAP:
frame_pixmap(dest, area, color, _origin);
break;
default:
THROW("invalid dest type %d", dest->source.type);
}
}