static void qemu_spice_create_update(SimpleSpiceDisplay *ssd)
{
static const int blksize = 32;
int blocks = (ds_get_width(ssd->ds) + blksize - 1) / blksize;
int dirty_top[blocks];
int y, yoff, x, xoff, blk, bw;
int bpp = ds_get_bytes_per_pixel(ssd->ds);
uint8_t *guest, *mirror;
if (qemu_spice_rect_is_empty(&ssd->dirty)) {
return;
};
if (ssd->conv == NULL) {
PixelFormat dst = qemu_default_pixelformat(32);
ssd->conv = qemu_pf_conv_get(&dst, &ssd->ds->surface->pf);
assert(ssd->conv);
}
if (ssd->ds_mirror == NULL) {
int size = ds_get_height(ssd->ds) * ds_get_linesize(ssd->ds);
ssd->ds_mirror = g_malloc0(size);
}
for (blk = 0; blk < blocks; blk++) {
dirty_top[blk] = -1;
}
guest = ds_get_data(ssd->ds);
mirror = ssd->ds_mirror;
for (y = ssd->dirty.top; y < ssd->dirty.bottom; y++) {
yoff = y * ds_get_linesize(ssd->ds);
for (x = ssd->dirty.left; x < ssd->dirty.right; x += blksize) {
xoff = x * bpp;
blk = x / blksize;
bw = MIN(blksize, ssd->dirty.right - x);
if (memcmp(guest + yoff + xoff,
mirror + yoff + xoff,
bw * bpp) == 0) {
if (dirty_top[blk] != -1) {
QXLRect update = {
.top = dirty_top[blk],
.bottom = y,
.left = x,
.right = x + bw,
};
qemu_spice_create_one_update(ssd, &update);
dirty_top[blk] = -1;
}
} else {
if (dirty_top[blk] == -1) {
dirty_top[blk] = y;
}
}
}
}
static void opengl_setdata(DisplayState *ds)
{
glEnable(GL_TEXTURE_RECTANGLE_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glClearColor(0, 0, 0, 0);
glDisable(GL_BLEND);
glDisable(GL_LIGHTING);
glDisable(GL_DEPTH_TEST);
glDepthMask(GL_FALSE);
glDisable(GL_CULL_FACE);
glViewport( 0, 0, real_screen->w, real_screen->h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, real_screen->w, real_screen->h, 0, -1,1);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glClear(GL_COLOR_BUFFER_BIT);
if (texture_ref) {
glDeleteTextures(1, &texture_ref);
texture_ref = 0;
}
glGenTextures(1, &texture_ref);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, texture_ref);
glPixelStorei(GL_UNPACK_LSB_FIRST, 1);
switch (ds_get_bits_per_pixel(ds)) {
case 16:
tex_format = GL_RGB;
tex_type = GL_UNSIGNED_SHORT_5_6_5;
break;
case 24:
tex_format = GL_BGR;
tex_type = GL_UNSIGNED_BYTE;
break;
case 32:
if (bgr == (ds->surface->pf.rshift < ds->surface->pf.bshift)) {
tex_format = GL_BGRA;
tex_type = GL_UNSIGNED_BYTE;
} else {
tex_format = GL_RGBA;
tex_type = GL_UNSIGNED_BYTE;
}
break;
}
glPixelStorei(GL_UNPACK_ROW_LENGTH, (ds_get_linesize(ds) / ds_get_bytes_per_pixel(ds)));
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, gl_format, ds_get_width(ds), ds_get_height(ds), 0, tex_format, tex_type, ds_get_data(ds));
glTexParameterf(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_PRIORITY, 1.0);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
}
static void opengl_update(DisplayState *ds, int x, int y, int w, int h)
{
int bpp = ds_get_bytes_per_pixel(ds);
GLvoid *pixels = ds_get_data(ds) + y * ds_get_linesize(ds) + x * bpp;
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, texture_ref);
glPixelStorei(GL_UNPACK_ROW_LENGTH, ds_get_linesize(ds) / bpp);
glTexSubImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, x, y, w, h, tex_format, tex_type, pixels);
glBegin(GL_QUADS);
glTexCoord2d(0, 0);
glVertex2d(0, 0);
glTexCoord2d(ds_get_width(ds), 0);
glVertex2d(real_screen->w, 0);
glTexCoord2d(ds_get_width(ds), ds_get_height(ds));
glVertex2d(real_screen->w, real_screen->h);
glTexCoord2d(0, ds_get_height(ds));
glVertex2d(0, real_screen->h);
glEnd();
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
SDL_GL_SwapBuffers();
}
static SimpleSpiceUpdate *qemu_spice_create_update(SimpleSpiceDisplay *ssd)
{
SimpleSpiceUpdate *update;
QXLDrawable *drawable;
QXLImage *image;
QXLCommand *cmd;
uint8_t *src, *dst;
int by, bw, bh;
struct timespec time_space;
if (qemu_spice_rect_is_empty(&ssd->dirty)) {
return NULL;
};
trace_qemu_spice_create_update(
ssd->dirty.left, ssd->dirty.right,
ssd->dirty.top, ssd->dirty.bottom);
update = g_malloc0(sizeof(*update));
drawable = &update->drawable;
image = &update->image;
cmd = &update->ext.cmd;
bw = ssd->dirty.right - ssd->dirty.left;
bh = ssd->dirty.bottom - ssd->dirty.top;
update->bitmap = g_malloc(bw * bh * 4);
drawable->bbox = ssd->dirty;
drawable->clip.type = SPICE_CLIP_TYPE_NONE;
drawable->effect = QXL_EFFECT_OPAQUE;
drawable->release_info.id = (uintptr_t)update;
drawable->type = QXL_DRAW_COPY;
drawable->surfaces_dest[0] = -1;
drawable->surfaces_dest[1] = -1;
drawable->surfaces_dest[2] = -1;
clock_gettime(CLOCK_MONOTONIC, &time_space);
/* time in milliseconds from epoch. */
drawable->mm_time = time_space.tv_sec * 1000
+ time_space.tv_nsec / 1000 / 1000;
drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT;
drawable->u.copy.src_bitmap = (uintptr_t)image;
drawable->u.copy.src_area.right = bw;
drawable->u.copy.src_area.bottom = bh;
QXL_SET_IMAGE_ID(image, QXL_IMAGE_GROUP_DEVICE, ssd->unique++);
image->descriptor.type = SPICE_IMAGE_TYPE_BITMAP;
image->bitmap.flags = QXL_BITMAP_DIRECT | QXL_BITMAP_TOP_DOWN;
image->bitmap.stride = bw * 4;
image->descriptor.width = image->bitmap.x = bw;
image->descriptor.height = image->bitmap.y = bh;
image->bitmap.data = (uintptr_t)(update->bitmap);
image->bitmap.palette = 0;
image->bitmap.format = SPICE_BITMAP_FMT_32BIT;
if (ssd->conv == NULL) {
PixelFormat dst = qemu_default_pixelformat(32);
ssd->conv = qemu_pf_conv_get(&dst, &ssd->ds->surface->pf);
assert(ssd->conv);
}
src = ds_get_data(ssd->ds) +
ssd->dirty.top * ds_get_linesize(ssd->ds) +
ssd->dirty.left * ds_get_bytes_per_pixel(ssd->ds);
dst = update->bitmap;
for (by = 0; by < bh; by++) {
qemu_pf_conv_run(ssd->conv, dst, src, bw);
src += ds_get_linesize(ssd->ds);
dst += image->bitmap.stride;
}
cmd->type = QXL_CMD_DRAW;
cmd->data = (uintptr_t)drawable;
memset(&ssd->dirty, 0, sizeof(ssd->dirty));
return update;
}
static void qemu_spice_create_one_update(SimpleSpiceDisplay *ssd,
QXLRect *rect)
{
SimpleSpiceUpdate *update;
QXLDrawable *drawable;
QXLImage *image;
QXLCommand *cmd;
uint8_t *src, *mirror, *dst;
int by, bw, bh, offset, bytes;
trace_qemu_spice_create_update(
rect->left, rect->right,
rect->top, rect->bottom);
update = qemu_mallocz(sizeof(*update));
drawable = &update->drawable;
image = &update->image;
cmd = &update->ext.cmd;
bw = rect->right - rect->left;
bh = rect->bottom - rect->top;
update->bitmap = qemu_malloc(bw * bh * 4);
drawable->bbox = *rect;
drawable->clip.type = SPICE_CLIP_TYPE_NONE;
drawable->effect = QXL_EFFECT_OPAQUE;
drawable->release_info.id = (intptr_t)update;
drawable->type = QXL_DRAW_COPY;
drawable->surfaces_dest[0] = -1;
drawable->surfaces_dest[1] = -1;
drawable->surfaces_dest[2] = -1;
drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT;
drawable->u.copy.src_bitmap = (intptr_t)image;
drawable->u.copy.src_area.right = bw;
drawable->u.copy.src_area.bottom = bh;
QXL_SET_IMAGE_ID(image, QXL_IMAGE_GROUP_DEVICE, ssd->unique++);
image->descriptor.type = SPICE_IMAGE_TYPE_BITMAP;
image->bitmap.flags = QXL_BITMAP_DIRECT | QXL_BITMAP_TOP_DOWN;
image->bitmap.stride = bw * 4;
image->descriptor.width = image->bitmap.x = bw;
image->descriptor.height = image->bitmap.y = bh;
image->bitmap.data = (intptr_t)(update->bitmap);
image->bitmap.palette = 0;
image->bitmap.format = SPICE_BITMAP_FMT_32BIT;
offset =
rect->top * ds_get_linesize(ssd->ds) +
rect->left * ds_get_bytes_per_pixel(ssd->ds);
bytes = ds_get_bytes_per_pixel(ssd->ds) * bw;
src = ds_get_data(ssd->ds) + offset;
mirror = ssd->ds_mirror + offset;
dst = update->bitmap;
for (by = 0; by < bh; by++) {
memcpy(mirror, src, bytes);
qemu_pf_conv_run(ssd->conv, dst, mirror, bw);
src += ds_get_linesize(ssd->ds);
mirror += ds_get_linesize(ssd->ds);
dst += image->bitmap.stride;
}
cmd->type = QXL_CMD_DRAW;
cmd->data = (intptr_t)drawable;
QTAILQ_INSERT_TAIL(&ssd->updates, update, next);
}
