diff options
Diffstat (limited to 'hw/qxl-render.c')
| -rw-r--r-- | hw/qxl-render.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/hw/qxl-render.c b/hw/qxl-render.c new file mode 100644 index 0000000000..58965e0179 --- /dev/null +++ b/hw/qxl-render.c @@ -0,0 +1,226 @@ +/* + * qxl local rendering (aka display on sdl/vnc) + * + * Copyright (C) 2010 Red Hat, Inc. + * + * maintained by Gerd Hoffmann <kraxel@redhat.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 or + * (at your option) version 3 of the License. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include "qxl.h" + +static void qxl_flip(PCIQXLDevice *qxl, QXLRect *rect) +{ + uint8_t *src = qxl->guest_primary.data; + uint8_t *dst = qxl->guest_primary.flipped; + int len, i; + + src += (qxl->guest_primary.surface.height - rect->top - 1) * + qxl->guest_primary.stride; + dst += rect->top * qxl->guest_primary.stride; + src += rect->left * qxl->guest_primary.bytes_pp; + dst += rect->left * qxl->guest_primary.bytes_pp; + len = (rect->right - rect->left) * qxl->guest_primary.bytes_pp; + + for (i = rect->top; i < rect->bottom; i++) { + memcpy(dst, src, len); + dst += qxl->guest_primary.stride; + src -= qxl->guest_primary.stride; + } +} + +void qxl_render_resize(PCIQXLDevice *qxl) +{ + QXLSurfaceCreate *sc = &qxl->guest_primary.surface; + + qxl->guest_primary.stride = sc->stride; + qxl->guest_primary.resized++; + switch (sc->format) { + case SPICE_SURFACE_FMT_16_555: + qxl->guest_primary.bytes_pp = 2; + qxl->guest_primary.bits_pp = 15; + break; + case SPICE_SURFACE_FMT_16_565: + qxl->guest_primary.bytes_pp = 2; + qxl->guest_primary.bits_pp = 16; + break; + case SPICE_SURFACE_FMT_32_xRGB: + case SPICE_SURFACE_FMT_32_ARGB: + qxl->guest_primary.bytes_pp = 4; + qxl->guest_primary.bits_pp = 32; + break; + default: + fprintf(stderr, "%s: unhandled format: %x\n", __FUNCTION__, + qxl->guest_primary.surface.format); + qxl->guest_primary.bytes_pp = 4; + qxl->guest_primary.bits_pp = 32; + break; + } +} + +void qxl_render_update(PCIQXLDevice *qxl) +{ + VGACommonState *vga = &qxl->vga; + QXLRect dirty[32], update; + void *ptr; + int i; + + if (qxl->guest_primary.resized) { + qxl->guest_primary.resized = 0; + + if (qxl->guest_primary.flipped) { + qemu_free(qxl->guest_primary.flipped); + qxl->guest_primary.flipped = NULL; + } + qemu_free_displaysurface(vga->ds); + + qxl->guest_primary.data = qemu_get_ram_ptr(qxl->vga.vram_offset); + if (qxl->guest_primary.stride < 0) { + /* spice surface is upside down -> need extra buffer to flip */ + qxl->guest_primary.stride = -qxl->guest_primary.stride; + qxl->guest_primary.flipped = qemu_malloc(qxl->guest_primary.surface.width * + qxl->guest_primary.stride); + ptr = qxl->guest_primary.flipped; + } else { + ptr = qxl->guest_primary.data; + } + dprint(qxl, 1, "%s: %dx%d, stride %d, bpp %d, depth %d, flip %s\n", + __FUNCTION__, + qxl->guest_primary.surface.width, + qxl->guest_primary.surface.height, + qxl->guest_primary.stride, + qxl->guest_primary.bytes_pp, + qxl->guest_primary.bits_pp, + qxl->guest_primary.flipped ? "yes" : "no"); + vga->ds->surface = + qemu_create_displaysurface_from(qxl->guest_primary.surface.width, + qxl->guest_primary.surface.height, + qxl->guest_primary.bits_pp, + qxl->guest_primary.stride, + ptr); + dpy_resize(vga->ds); + } + + if (!qxl->guest_primary.commands) { + return; + } + qxl->guest_primary.commands = 0; + + update.left = 0; + update.right = qxl->guest_primary.surface.width; + update.top = 0; + update.bottom = qxl->guest_primary.surface.height; + + memset(dirty, 0, sizeof(dirty)); + qxl->ssd.worker->update_area(qxl->ssd.worker, 0, &update, + dirty, ARRAY_SIZE(dirty), 1); + + for (i = 0; i < ARRAY_SIZE(dirty); i++) { + if (qemu_spice_rect_is_empty(dirty+i)) { + break; + } + if (qxl->guest_primary.flipped) { + qxl_flip(qxl, dirty+i); + } + dpy_update(vga->ds, + dirty[i].left, dirty[i].top, + dirty[i].right - dirty[i].left, + dirty[i].bottom - dirty[i].top); + } +} + +static QEMUCursor *qxl_cursor(PCIQXLDevice *qxl, QXLCursor *cursor) +{ + QEMUCursor *c; + uint8_t *image, *mask; + int size; + + c = cursor_alloc(cursor->header.width, cursor->header.height); + c->hot_x = cursor->header.hot_spot_x; + c->hot_y = cursor->header.hot_spot_y; + switch (cursor->header.type) { + case SPICE_CURSOR_TYPE_ALPHA: + size = cursor->header.width * cursor->header.height * sizeof(uint32_t); + memcpy(c->data, cursor->chunk.data, size); + if (qxl->debug > 2) { + cursor_print_ascii_art(c, "qxl/alpha"); + } + break; + case SPICE_CURSOR_TYPE_MONO: + mask = cursor->chunk.data; + image = mask + cursor_get_mono_bpl(c) * c->width; + cursor_set_mono(c, 0xffffff, 0x000000, image, 1, mask); + if (qxl->debug > 2) { + cursor_print_ascii_art(c, "qxl/mono"); + } + break; + default: + fprintf(stderr, "%s: not implemented: type %d\n", + __FUNCTION__, cursor->header.type); + goto fail; + } + return c; + +fail: + cursor_put(c); + return NULL; +} + + +/* called from spice server thread context only */ +void qxl_render_cursor(PCIQXLDevice *qxl, QXLCommandExt *ext) +{ + QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id); + QXLCursor *cursor; + QEMUCursor *c; + int x = -1, y = -1; + + if (!qxl->ssd.ds->mouse_set || !qxl->ssd.ds->cursor_define) { + return; + } + + if (qxl->debug > 1 && cmd->type != QXL_CURSOR_MOVE) { + fprintf(stderr, "%s", __FUNCTION__); + qxl_log_cmd_cursor(qxl, cmd, ext->group_id); + fprintf(stderr, "\n"); + } + switch (cmd->type) { + case QXL_CURSOR_SET: + x = cmd->u.set.position.x; + y = cmd->u.set.position.y; + cursor = qxl_phys2virt(qxl, cmd->u.set.shape, ext->group_id); + if (cursor->chunk.data_size != cursor->data_size) { + fprintf(stderr, "%s: multiple chunks\n", __FUNCTION__); + return; + } + c = qxl_cursor(qxl, cursor); + if (c == NULL) { + c = cursor_builtin_left_ptr(); + } + qemu_mutex_lock_iothread(); + qxl->ssd.ds->cursor_define(c); + qxl->ssd.ds->mouse_set(x, y, 1); + qemu_mutex_unlock_iothread(); + cursor_put(c); + break; + case QXL_CURSOR_MOVE: + x = cmd->u.position.x; + y = cmd->u.position.y; + qemu_mutex_lock_iothread(); + qxl->ssd.ds->mouse_set(x, y, 1); + qemu_mutex_unlock_iothread(); + break; + } +} |