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_spans_init (i965_spans_t *spans,
i965_surface_t *dst,
cairo_operator_t op,
const cairo_pattern_t *pattern,
cairo_antialias_t antialias,
cairo_clip_t *clip,
const cairo_composite_rectangles_t *extents)
{
cairo_status_t status;
spans->device = i965_device (dst);
i965_shader_init (&spans->shader, dst, op);
spans->is_bounded = extents->is_bounded;
if (extents->is_bounded) {
if (antialias == CAIRO_ANTIALIAS_NONE)
spans->renderer.render_rows = i965_bounded_spans_mono;
else
spans->renderer.render_rows = i965_bounded_spans;
spans->extents = &extents->bounded;
} else {
if (antialias == CAIRO_ANTIALIAS_NONE)
spans->renderer.render_rows = i965_unbounded_spans_mono;
else
spans->renderer.render_rows = i965_unbounded_spans;
spans->extents = &extents->unbounded;
}
spans->xmin = spans->extents->x;
spans->xmax = spans->extents->x + spans->extents->width;
spans->clip_region = NULL;
if (clip != NULL) {
cairo_region_t *clip_region = 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;
spans->clip_region = clip_region;
if (status == CAIRO_INT_STATUS_UNSUPPORTED)
i965_shader_set_clip (&spans->shader, clip);
}
spans->head.next = NULL;
spans->head.bo = NULL;
spans->head.count = 0;
spans->tail = &spans->head;
if (spans->clip_region == NULL) {
spans->get_rectangle = i965_spans_emit_rectangle;
} else {
spans->get_rectangle = i965_spans_accumulate_rectangle;
spans->head.bo = intel_bo_create (&spans->device->intel,
I965_VERTEX_SIZE, I965_VERTEX_SIZE,
FALSE, I915_TILING_NONE, 0);
if (unlikely (spans->head.bo == NULL))
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
spans->vbo_base = intel_bo_map (&spans->device->intel, spans->head.bo);
}
spans->vbo_offset = 0;
return i965_shader_acquire_pattern (&spans->shader,
&spans->shader.source,
pattern, &extents->bounded);
}
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;
}