static cairo_status_t
gallium_surface_flush (void *abstract_surface)
{
gallium_surface_t *surface = abstract_surface;
gallium_device_t *device = gallium_device (surface);
cairo_status_t status;
if (surface->fallback == NULL) {
device->pipe->flush (device->pipe,
PIPE_FLUSH_RENDER_CACHE,
NULL);
return CAIRO_STATUS_SUCCESS;
}
/* kill any outstanding maps */
cairo_surface_finish (surface->fallback);
status = cairo_device_acquire (&device->drm.base);
if (likely (status == CAIRO_STATUS_SUCCESS)) {
device->pipe->transfer_unmap (device->pipe,
surface->map_transfer);
device->pipe->transfer_destroy (device->pipe,
surface->map_transfer);
surface->map_transfer = NULL;
cairo_device_release (&device->drm.base);
}
status = cairo_surface_status (surface->fallback);
cairo_surface_destroy (surface->fallback);
surface->fallback = NULL;
return status;
}
static cairo_status_t
gallium_surface_acquire_source_image (void *abstract_surface,
cairo_image_surface_t **image_out,
void **image_extra)
{
gallium_surface_t *surface = abstract_surface;
gallium_device_t *device = gallium_device (surface);
cairo_format_t format;
cairo_surface_t *image;
cairo_status_t status;
struct pipe_transfer *transfer;
void *ptr;
if (surface->fallback != NULL) {
*image_out = (cairo_image_surface_t *)
cairo_surface_reference (surface->fallback);
*image_extra = NULL;
return CAIRO_STATUS_SUCCESS;
}
if (unlikely (surface->drm.width == 0 || surface->drm.height == 0)) {
image = cairo_image_surface_create (surface->drm.format, 0, 0);
if (unlikely (image->status))
return image->status;
*image_out = (cairo_image_surface_t *) image;
*image_extra = NULL;
return CAIRO_STATUS_SUCCESS;
}
format = _cairo_format_from_pipe_format (surface->pipe_format);
if (format == CAIRO_FORMAT_INVALID)
return CAIRO_INT_STATUS_UNSUPPORTED;
status = cairo_device_acquire (&device->drm.base);
if (unlikely (status))
return status;
transfer = pipe_get_transfer (device->pipe,
surface->texture, 0, 0, 0,
PIPE_TRANSFER_READ,
0, 0,
surface->drm.width,
surface->drm.height);
ptr = device->pipe->transfer_map (device->pipe, transfer);
cairo_device_release (&device->drm.base);
image = cairo_image_surface_create_for_data (ptr, format,
surface->drm.width,
surface->drm.height,
surface->drm.stride);
if (unlikely (image->status))
return image->status;
*image_out = (cairo_image_surface_t *) image;
*image_extra = transfer;
return CAIRO_STATUS_SUCCESS;
}
static VALUE
cr_device_acquire (VALUE self)
{
cairo_device_acquire (_SELF);
cr_device_check_status (_SELF);
if (rb_block_given_p ())
return rb_ensure (rb_yield, self, cr_device_release, self);
else
return self;
}
static cairo_surface_t *
display_create_drm_surface_from_file(struct display *display,
const char *filename,
struct rectangle *rect)
{
cairo_surface_t *surface;
GdkPixbuf *pixbuf;
GError *error = NULL;
int stride, i;
unsigned char *pixels, *p, *end;
struct drm_surface_data *data;
pixbuf = gdk_pixbuf_new_from_file_at_scale(filename,
rect->width, rect->height,
FALSE, &error);
if (error != NULL)
return NULL;
if (!gdk_pixbuf_get_has_alpha(pixbuf) ||
gdk_pixbuf_get_n_channels(pixbuf) != 4) {
gdk_pixbuf_unref(pixbuf);
return NULL;
}
stride = gdk_pixbuf_get_rowstride(pixbuf);
pixels = gdk_pixbuf_get_pixels(pixbuf);
for (i = 0; i < rect->height; i++) {
p = pixels + i * stride;
end = p + rect->width * 4;
while (p < end) {
unsigned int t;
MULT(p[0], p[0], p[3], t);
MULT(p[1], p[1], p[3], t);
MULT(p[2], p[2], p[3], t);
p += 4;
}
}
surface = display_create_drm_surface(display, rect);
data = cairo_surface_get_user_data(surface, &surface_data_key);
cairo_device_acquire(display->device);
glBindTexture(GL_TEXTURE_2D, data->texture);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, rect->width, rect->height,
GL_RGBA, GL_UNSIGNED_BYTE, pixels);
cairo_device_release(display->device);
gdk_pixbuf_unref(pixbuf);
return surface;
}
static void
_cairo_boilerplate_egl_synchronize (void *closure)
{
egl_target_closure_t *gltc = closure;
if (cairo_device_acquire (gltc->device))
return;
glFinish ();
cairo_device_release (gltc->device);
}
static cairo_surface_t *
display_create_drm_surface(struct display *display,
struct rectangle *rectangle)
{
struct drm_surface_data *data;
EGLDisplay dpy = display->dpy;
cairo_surface_t *surface;
struct wl_visual *visual;
EGLint name, stride;
EGLint image_attribs[] = {
EGL_WIDTH, 0,
EGL_HEIGHT, 0,
EGL_DRM_BUFFER_FORMAT_MESA, EGL_DRM_BUFFER_FORMAT_ARGB32_MESA,
EGL_DRM_BUFFER_USE_MESA, EGL_DRM_BUFFER_USE_SCANOUT_MESA,
EGL_NONE
};
data = malloc(sizeof *data);
if (data == NULL)
return NULL;
data->display = display;
image_attribs[1] = rectangle->width;
image_attribs[3] = rectangle->height;
data->image = eglCreateDRMImageMESA(dpy, image_attribs);
cairo_device_acquire(display->device);
glGenTextures(1, &data->texture);
glBindTexture(GL_TEXTURE_2D, data->texture);
glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, data->image);
cairo_device_release(display->device);
eglExportDRMImageMESA(display->dpy, data->image, &name, NULL, &stride);
visual = wl_display_get_premultiplied_argb_visual(display->display);
data->data.buffer =
wl_drm_create_buffer(display->drm, name, rectangle->width,
rectangle->height, stride, visual);
surface = cairo_gl_surface_create_for_texture(display->device,
CAIRO_CONTENT_COLOR_ALPHA,
data->texture,
rectangle->width,
rectangle->height);
cairo_surface_set_user_data (surface, &surface_data_key,
data, drm_surface_data_destroy);
return surface;
}
static void
drm_surface_data_destroy(void *p)
{
struct drm_surface_data *data = p;
struct display *d = data->display;
cairo_device_acquire(d->device);
glDeleteTextures(1, &data->texture);
cairo_device_release(d->device);
eglDestroyImageKHR(d->dpy, data->image);
wl_buffer_destroy(data->data.buffer);
}
static cairo_status_t
gallium_surface_finish (void *abstract_surface)
{
gallium_surface_t *surface = abstract_surface;
gallium_device_t *device = gallium_device (surface);
cairo_status_t status;
status = cairo_device_acquire (&device->drm.base);
if (likely (status == CAIRO_STATUS_SUCCESS)) {
pipe_resource_reference (&surface->texture, NULL);
cairo_device_release (&device->drm.base);
}
return _cairo_drm_surface_finish (&surface->drm);
}
cairo_status_t
i965_clip_and_composite_spans (i965_surface_t *dst,
cairo_operator_t op,
const cairo_pattern_t *pattern,
cairo_antialias_t antialias,
i965_spans_func_t draw_func,
void *draw_closure,
const cairo_composite_rectangles_t*extents,
cairo_clip_t *clip)
{
i965_spans_t spans;
i965_device_t *device;
cairo_status_t status;
if (op == CAIRO_OPERATOR_CLEAR) {
pattern = &_cairo_pattern_white.base;
op = CAIRO_OPERATOR_DEST_OUT;
}
status = i965_spans_init (&spans, dst, op, pattern, antialias, clip, extents);
if (unlikely (status))
return status;
spans.shader.mask.base.content = CAIRO_CONTENT_ALPHA;
spans.shader.mask.type.fragment = FS_SPANS;
spans.shader.mask.type.vertex = VS_SPANS;
spans.shader.mask.type.pattern = PATTERN_BASE;
status = cairo_device_acquire (dst->intel.drm.base.device);
if (unlikely (status))
goto CLEANUP_SPANS;
device = i965_device (dst);
status = i965_shader_commit (&spans.shader, device);
if (unlikely (status))
goto CLEANUP_DEVICE;
status = draw_func (draw_closure, &spans.renderer, spans.extents);
if (spans.clip_region != NULL && status == CAIRO_STATUS_SUCCESS)
i965_clipped_vertices (device, &spans.head, spans.clip_region);
CLEANUP_DEVICE:
cairo_device_release (dst->intel.drm.base.device);
CLEANUP_SPANS:
i965_spans_fini (&spans);
return status;
}
static char *
_cairo_boilerplate_gl_describe (void *closure)
{
gl_target_closure_t *gltc = closure;
char *s;
const GLubyte *vendor, *renderer, *version;
if (cairo_device_acquire (gltc->device))
return NULL;
vendor = glGetString (GL_VENDOR);
renderer = glGetString (GL_RENDERER);
version = glGetString (GL_VERSION);
xasprintf (&s, "%s %s %s", vendor, renderer, version);
cairo_device_release (gltc->device);
return s;
}
static cairo_surface_t *
gallium_surface_map_to_image (gallium_surface_t *surface)
{
gallium_device_t *device = gallium_device (surface);
cairo_status_t status;
void *ptr = NULL;
status = cairo_device_acquire (&device->drm.base);
if (unlikely (status))
return _cairo_surface_create_in_error (status);
surface->map_transfer =
pipe_get_transfer (device->pipe,
surface->texture, 0, 0, 0,
PIPE_TRANSFER_MAP_DIRECTLY |
PIPE_TRANSFER_READ_WRITE,
0, 0,
surface->drm.width,
surface->drm.height);
if (likely (surface->map_transfer != NULL))
ptr = device->pipe->transfer_map (device->pipe, surface->map_transfer);
cairo_device_release (&device->drm.base);
if (unlikely (ptr == NULL)) {
if (surface->map_transfer != NULL) {
device->pipe->transfer_destroy (device->pipe,
surface->map_transfer);
surface->map_transfer = NULL;
}
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
}
return cairo_image_surface_create_for_data (ptr,
surface->drm.format,
surface->drm.width,
surface->drm.height,
surface->map_transfer->stride);
}
static cairo_surface_t *
gallium_surface_create_similar (void *abstract_src,
cairo_content_t content,
int width,
int height)
{
gallium_surface_t *other = abstract_src;
gallium_device_t *device = gallium_device (other);
enum pipe_format pipe_format;
cairo_surface_t *surface = NULL;
cairo_status_t status;
status = cairo_device_acquire (&device->drm.base);
if (unlikely (status))
return _cairo_surface_create_in_error (status);
if (MAX (width, height) > device->max_size)
goto RELEASE;
if (content == other->drm.base.content)
pipe_format = other->pipe_format;
else
pipe_format = pipe_format_from_content (content);
if (! format_is_supported_destination (device, pipe_format))
goto RELEASE;
surface = gallium_surface_create_internal (device,
pipe_format,
width, height);
RELEASE:
cairo_device_release (&device->drm.base);
return surface;
}
cairo_int_status_t
i965_surface_glyphs (void *abstract_surface,
cairo_operator_t op,
const cairo_pattern_t *source,
cairo_glyph_t *g,
int num_glyphs,
cairo_scaled_font_t *scaled_font,
cairo_clip_t *clip,
int *num_remaining)
{
i965_surface_t *surface = abstract_surface;
i965_surface_t *mask = NULL;
i965_device_t *device;
i965_glyphs_t glyphs;
cairo_composite_rectangles_t extents;
cairo_clip_t local_clip;
cairo_bool_t have_clip = FALSE;
cairo_bool_t overlap;
cairo_region_t *clip_region = NULL;
intel_bo_t *last_bo = NULL;
cairo_scaled_glyph_t *glyph_cache[64];
cairo_status_t status;
int mask_x = 0, mask_y = 0;
int i = 0;
*num_remaining = 0;
status = _cairo_composite_rectangles_init_for_glyphs (&extents,
surface->intel.drm.width,
surface->intel.drm.height,
op, source,
scaled_font,
g, num_glyphs,
clip,
&overlap);
if (unlikely (status))
return status;
if (clip != NULL && _cairo_clip_contains_rectangle (clip, &extents.mask))
clip = NULL;
if (clip != NULL && extents.is_bounded) {
clip = _cairo_clip_init_copy (&local_clip, clip);
status = _cairo_clip_rectangle (clip, &extents.bounded);
if (unlikely (status))
return status;
have_clip = TRUE;
}
if (overlap || ! extents.is_bounded) {
cairo_format_t format;
format = CAIRO_FORMAT_A8;
if (scaled_font->options.antialias == CAIRO_ANTIALIAS_SUBPIXEL)
format = CAIRO_FORMAT_ARGB32;
mask = (i965_surface_t *)
i965_surface_create_internal (&i965_device (surface)->intel.base,
format,
extents.bounded.width,
extents.bounded.height,
I965_TILING_DEFAULT,
TRUE);
if (unlikely (mask->intel.drm.base.status))
return mask->intel.drm.base.status;
status = _cairo_surface_paint (&mask->intel.drm.base,
CAIRO_OPERATOR_CLEAR,
&_cairo_pattern_clear.base,
NULL);
if (unlikely (status)) {
cairo_surface_destroy (&mask->intel.drm.base);
return status;
}
i965_shader_init (&glyphs.shader, mask, CAIRO_OPERATOR_ADD);
status = i965_shader_acquire_pattern (&glyphs.shader, &glyphs.shader.source,
&_cairo_pattern_white.base,
&extents.bounded);
if (unlikely (status)) {
cairo_surface_destroy (&mask->intel.drm.base);
return status;
}
mask_x = -extents.bounded.x;
mask_y = -extents.bounded.y;
} else {
i965_shader_init (&glyphs.shader, surface, op);
status = i965_shader_acquire_pattern (&glyphs.shader, &glyphs.shader.source,
source, &extents.bounded);
if (unlikely (status))
return status;
if (clip != NULL) {
status = _cairo_clip_get_region (clip, &clip_region);
assert (status == CAIRO_STATUS_SUCCESS || status == CAIRO_INT_STATUS_UNSUPPORTED);
if (status == CAIRO_INT_STATUS_UNSUPPORTED)
i965_shader_set_clip (&glyphs.shader, clip);
}
}
glyphs.head.next = NULL;
glyphs.head.bo = NULL;
glyphs.head.count = 0;
glyphs.tail = &glyphs.head;
device = i965_device (surface);
if (mask != NULL || clip_region == NULL) {
glyphs.get_rectangle = i965_glyphs_emit_rectangle;
} else {
glyphs.get_rectangle = i965_glyphs_accumulate_rectangle;
glyphs.head.bo = intel_bo_create (&device->intel,
I965_VERTEX_SIZE, I965_VERTEX_SIZE,
FALSE, I915_TILING_NONE, 0);
if (unlikely (glyphs.head.bo == NULL))
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
glyphs.vbo_base = intel_bo_map (&device->intel, glyphs.head.bo);
}
glyphs.vbo_offset = 0;
status = cairo_device_acquire (&device->intel.base.base);
if (unlikely (status))
goto CLEANUP_GLYPHS;
_cairo_scaled_font_freeze_cache (scaled_font);
//private = _cairo_scaled_font_get_device (scaled_font, device);
if (scaled_font->surface_private == NULL) {
scaled_font->surface_private = device;
scaled_font->surface_backend = surface->intel.drm.base.backend;
cairo_list_add (&scaled_font->link, &device->intel.fonts);
}
memset (glyph_cache, 0, sizeof (glyph_cache));
for (i = 0; i < num_glyphs; i++) {
cairo_scaled_glyph_t *scaled_glyph;
int x, y, x1, x2, y1, y2;
int cache_index = g[i].index % ARRAY_LENGTH (glyph_cache);
intel_glyph_t *glyph;
scaled_glyph = glyph_cache[cache_index];
if (scaled_glyph == NULL ||
_cairo_scaled_glyph_index (scaled_glyph) != g[i].index)
{
status = _cairo_scaled_glyph_lookup (scaled_font,
g[i].index,
CAIRO_SCALED_GLYPH_INFO_METRICS,
&scaled_glyph);
if (unlikely (status))
goto FINISH;
glyph_cache[cache_index] = scaled_glyph;
}
if (unlikely (scaled_glyph->metrics.width == 0 ||
scaled_glyph->metrics.height == 0))
{
continue;
}
/* XXX glyph images are snapped to pixel locations */
x = _cairo_lround (g[i].x);
y = _cairo_lround (g[i].y);
x1 = x + _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.x);
y1 = y + _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.y);
x2 = x + _cairo_fixed_integer_ceil (scaled_glyph->bbox.p2.x);
y2 = y + _cairo_fixed_integer_ceil (scaled_glyph->bbox.p2.y);
if (x2 < extents.bounded.x ||
y2 < extents.bounded.y ||
x1 > extents.bounded.x + extents.bounded.width ||
y1 > extents.bounded.y + extents.bounded.height)
{
continue;
}
if (scaled_glyph->surface_private == NULL) {
status = intel_get_glyph (&device->intel, scaled_font, scaled_glyph);
if (unlikely (status == CAIRO_INT_STATUS_NOTHING_TO_DO)) {
status = CAIRO_STATUS_SUCCESS;
continue;
}
if (unlikely (status))
goto FINISH;
}
glyph = intel_glyph_pin (scaled_glyph->surface_private);
if (glyph->cache->buffer.bo != last_bo) {
intel_buffer_cache_t *cache = glyph->cache;
glyphs.shader.mask.type.vertex = VS_GLYPHS;
glyphs.shader.mask.type.fragment = FS_GLYPHS;
glyphs.shader.mask.type.pattern = PATTERN_BASE;
glyphs.shader.mask.base.bo = cache->buffer.bo;
glyphs.shader.mask.base.format = cache->buffer.format;
glyphs.shader.mask.base.width = cache->buffer.width;
glyphs.shader.mask.base.height = cache->buffer.height;
glyphs.shader.mask.base.stride = cache->buffer.stride;
glyphs.shader.mask.base.filter = i965_filter (CAIRO_FILTER_NEAREST);
glyphs.shader.mask.base.extend = i965_extend (CAIRO_EXTEND_NONE);
glyphs.shader.mask.base.content = CAIRO_CONTENT_ALPHA; /* XXX */
glyphs.shader.committed = FALSE;
status = i965_shader_commit (&glyphs.shader, device);
if (unlikely (status))
goto FINISH;
last_bo = cache->buffer.bo;
}
x2 = x1 + glyph->width;
y2 = y1 + glyph->height;
if (mask_x)
x1 += mask_x, x2 += mask_x;
if (mask_y)
y1 += mask_y, y2 += mask_y;
i965_add_glyph_rectangle (&glyphs, x1, y1, x2, y2, glyph);
}
if (mask != NULL && clip_region != NULL)
i965_clipped_vertices (device, &glyphs.head, clip_region);
status = CAIRO_STATUS_SUCCESS;
FINISH:
_cairo_scaled_font_thaw_cache (scaled_font);
cairo_device_release (surface->intel.drm.base.device);
CLEANUP_GLYPHS:
i965_shader_fini (&glyphs.shader);
if (glyphs.head.bo != NULL) {
struct i965_vbo *vbo, *next;
intel_bo_destroy (&device->intel, glyphs.head.bo);
for (vbo = glyphs.head.next; vbo != NULL; vbo = next) {
next = vbo->next;
intel_bo_destroy (&device->intel, vbo->bo);
free (vbo);
}
}
if (unlikely (status == CAIRO_INT_STATUS_UNSUPPORTED)) {
cairo_path_fixed_t path;
_cairo_path_fixed_init (&path);
status = _cairo_scaled_font_glyph_path (scaled_font,
g + i, num_glyphs - i,
&path);
if (mask_x | mask_y) {
_cairo_path_fixed_translate (&path,
_cairo_fixed_from_int (mask_x),
_cairo_fixed_from_int (mask_y));
}
if (likely (status == CAIRO_STATUS_SUCCESS)) {
status = surface->intel.drm.base.backend->fill (glyphs.shader.target,
glyphs.shader.op,
mask != NULL ? &_cairo_pattern_white.base : source,
&path,
CAIRO_FILL_RULE_WINDING,
0,
scaled_font->options.antialias,
clip);
}
_cairo_path_fixed_fini (&path);
}
if (mask != NULL) {
if (likely (status == CAIRO_STATUS_SUCCESS)) {
status = i965_surface_mask_internal (surface, op, source, mask,
clip, &extents);
}
cairo_surface_finish (&mask->intel.drm.base);
cairo_surface_destroy (&mask->intel.drm.base);
}
if (have_clip)
_cairo_clip_fini (&local_clip);
return status;
}
static cairo_status_t
i965_surface_mask_internal (i965_surface_t *dst,
cairo_operator_t op,
const cairo_pattern_t *source,
i965_surface_t *mask,
cairo_clip_t *clip,
const cairo_composite_rectangles_t *extents)
{
i965_device_t *device;
i965_shader_t shader;
cairo_region_t *clip_region = NULL;
cairo_status_t status;
i965_shader_init (&shader, dst, op);
status = i965_shader_acquire_pattern (&shader, &shader.source,
source, &extents->bounded);
if (unlikely (status))
return status;
shader.mask.type.vertex = VS_NONE;
shader.mask.type.fragment = FS_SURFACE;
shader.mask.base.content = mask->intel.drm.base.content;
shader.mask.base.filter = i965_filter (CAIRO_FILTER_NEAREST);
shader.mask.base.extend = i965_extend (CAIRO_EXTEND_NONE);
cairo_matrix_init_translate (&shader.mask.base.matrix,
-extents->bounded.x,
-extents->bounded.y);
cairo_matrix_scale (&shader.mask.base.matrix,
1. / mask->intel.drm.width,
1. / mask->intel.drm.height);
shader.mask.base.bo = to_intel_bo (mask->intel.drm.bo);
shader.mask.base.format = mask->intel.drm.format;
shader.mask.base.width = mask->intel.drm.width;
shader.mask.base.height = mask->intel.drm.height;
shader.mask.base.stride = mask->intel.drm.stride;
if (clip != NULL) {
status = _cairo_clip_get_region (clip, &clip_region);
assert (status == CAIRO_STATUS_SUCCESS || status == CAIRO_INT_STATUS_UNSUPPORTED);
if (clip_region != NULL && cairo_region_num_rectangles (clip_region) == 1)
clip_region = NULL;
if (status == CAIRO_INT_STATUS_UNSUPPORTED)
i965_shader_set_clip (&shader, clip);
}
status = cairo_device_acquire (dst->intel.drm.base.device);
if (unlikely (status))
goto CLEANUP_SHADER;
device = i965_device (dst);
status = i965_shader_commit (&shader, device);
if (unlikely (status))
goto CLEANUP_DEVICE;
if (clip_region != NULL) {
unsigned int n, num_rectangles;
num_rectangles = cairo_region_num_rectangles (clip_region);
for (n = 0; n < num_rectangles; n++) {
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (clip_region, n, &rect);
i965_shader_add_rectangle (&shader,
rect.x, rect.y,
rect.width, rect.height);
}
} else {
i965_shader_add_rectangle (&shader,
extents->bounded.x,
extents->bounded.y,
extents->bounded.width,
extents->bounded.height);
}
if (! extents->is_bounded)
status = i965_fixup_unbounded (dst, extents, clip);
CLEANUP_DEVICE:
cairo_device_release (&device->intel.base.base);
CLEANUP_SHADER:
i965_shader_fini (&shader);
return status;
}
