/* cairo - a vector graphics library with display and print output * * Copyright © 2004 David Reveman * * Permission to use, copy, modify, distribute, and sell this software * and its documentation for any purpose is hereby granted without * fee, provided that the above copyright notice appear in all copies * and that both that copyright notice and this permission notice * appear in supporting documentation, and that the name of David * Reveman not be used in advertising or publicity pertaining to * distribution of the software without specific, written prior * permission. David Reveman makes no representations about the * suitability of this software for any purpose. It is provided "as * is" without express or implied warranty. * * DAVID REVEMAN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS, IN NO EVENT SHALL DAVID REVEMAN BE LIABLE FOR ANY SPECIAL, * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * * Author: David Reveman */ #include "cairoint.h" #include "cairo-glitz.h" typedef struct _cairo_glitz_surface { cairo_surface_t base; glitz_surface_t *surface; glitz_format_t *format; pixman_region16_t *clip; } cairo_glitz_surface_t; static cairo_status_t _cairo_glitz_surface_finish (void *abstract_surface) { cairo_glitz_surface_t *surface = abstract_surface; if (surface->clip) { glitz_surface_set_clip_region (surface->surface, 0, 0, NULL, 0); pixman_region_destroy (surface->clip); } glitz_surface_destroy (surface->surface); return CAIRO_STATUS_SUCCESS; } static glitz_format_name_t _glitz_format (cairo_format_t format) { switch (format) { default: case CAIRO_FORMAT_ARGB32: return GLITZ_STANDARD_ARGB32; case CAIRO_FORMAT_RGB24: return GLITZ_STANDARD_RGB24; case CAIRO_FORMAT_A8: return GLITZ_STANDARD_A8; case CAIRO_FORMAT_A1: return GLITZ_STANDARD_A1; } } static cairo_surface_t * _cairo_glitz_surface_create_similar (void *abstract_src, cairo_format_t format, int draw, int width, int height) { cairo_glitz_surface_t *src = abstract_src; cairo_surface_t *crsurface; glitz_drawable_t *drawable; glitz_surface_t *surface; glitz_format_t *gformat; drawable = glitz_surface_get_drawable (src->surface); gformat = glitz_find_standard_format (drawable, _glitz_format (format)); if (!gformat) return NULL; surface = glitz_surface_create (drawable, gformat, width, height, 0, NULL); if (!surface) return NULL; crsurface = cairo_glitz_surface_create (surface); glitz_surface_destroy (surface); return crsurface; } static cairo_status_t _cairo_glitz_surface_get_image (cairo_glitz_surface_t *surface, cairo_rectangle_t *interest, cairo_image_surface_t **image_out, cairo_rectangle_t *rect_out) { cairo_image_surface_t *image; int x1, y1, x2, y2; int width, height; char *pixels; cairo_format_masks_t format; glitz_buffer_t *buffer; glitz_pixel_format_t pf; x1 = 0; y1 = 0; x2 = glitz_surface_get_width (surface->surface); y2 = glitz_surface_get_height (surface->surface); if (interest) { if (interest->x > x1) x1 = interest->x; if (interest->y > y1) y1 = interest->y; if (interest->x + interest->width < x2) x2 = interest->x + interest->width; if (interest->y + interest->height < y2) y2 = interest->y + interest->height; if (x1 >= x2 || y1 >= y2) { *image_out = NULL; return CAIRO_STATUS_SUCCESS; } } width = x2 - x1; height = y2 - y1; if (rect_out) { rect_out->x = x1; rect_out->y = y1; rect_out->width = width; rect_out->height = height; } if (surface->format->type == GLITZ_FORMAT_TYPE_COLOR) { if (surface->format->color.red_size > 0) { format.bpp = 32; if (surface->format->color.alpha_size > 0) format.alpha_mask = 0xff000000; else format.alpha_mask = 0x0; format.red_mask = 0xff0000; format.green_mask = 0xff00; format.blue_mask = 0xff; } else { format.bpp = 8; format.blue_mask = format.green_mask = format.red_mask = 0x0; format.alpha_mask = 0xff; } } else { format.bpp = 32; format.alpha_mask = 0xff000000; format.red_mask = 0xff0000; format.green_mask = 0xff00; format.blue_mask = 0xff; } pf.masks.bpp = format.bpp; pf.masks.alpha_mask = format.alpha_mask; pf.masks.red_mask = format.red_mask; pf.masks.green_mask = format.green_mask; pf.masks.blue_mask = format.blue_mask; pf.xoffset = 0; pf.skip_lines = 0; /* XXX: we should eventually return images with negative stride, need to verify that libpixman have no problem with this first. */ pf.bytes_per_line = (((width * format.bpp) / 8) + 3) & -4; pf.scanline_order = GLITZ_PIXEL_SCANLINE_ORDER_TOP_DOWN; pixels = malloc (height * pf.bytes_per_line); if (!pixels) return CAIRO_STATUS_NO_MEMORY; buffer = glitz_buffer_create_for_data (pixels); if (!buffer) { free (pixels); return CAIRO_STATUS_NO_MEMORY; } glitz_get_pixels (surface->surface, x1, y1, width, height, &pf, buffer); glitz_buffer_destroy (buffer); image = (cairo_image_surface_t *) _cairo_image_surface_create_with_masks (pixels, &format, width, height, pf.bytes_per_line); if (!image) { free (pixels); return CAIRO_STATUS_NO_MEMORY; } _cairo_image_surface_assume_ownership_of_data (image); _cairo_image_surface_set_repeat (image, surface->base.repeat); _cairo_image_surface_set_matrix (image, &(surface->base.matrix)); *image_out = image; return CAIRO_STATUS_SUCCESS; } static cairo_status_t _cairo_glitz_surface_set_image (void *abstract_surface, cairo_image_surface_t *image, int x_dst, int y_dst) { cairo_glitz_surface_t *surface = abstract_surface; glitz_buffer_t *buffer; glitz_pixel_format_t pf; pixman_format_t *format; int am, rm, gm, bm; char *data; format = pixman_image_get_format (image->pixman_image); if (!format) return CAIRO_STATUS_NO_MEMORY; pixman_format_get_masks (format, &pf.masks.bpp, &am, &rm, &gm, &bm); pf.masks.alpha_mask = am; pf.masks.red_mask = rm; pf.masks.green_mask = gm; pf.masks.blue_mask = bm; pf.xoffset = 0; pf.skip_lines = 0; /* check for negative stride */ if (image->stride < 0) { pf.bytes_per_line = -image->stride; pf.scanline_order = GLITZ_PIXEL_SCANLINE_ORDER_BOTTOM_UP; data = (char *) image->data + image->stride * (image->height - 1); } else { pf.bytes_per_line = image->stride; pf.scanline_order = GLITZ_PIXEL_SCANLINE_ORDER_TOP_DOWN; data = (char *) image->data; } buffer = glitz_buffer_create_for_data (data); if (!buffer) return CAIRO_STATUS_NO_MEMORY; glitz_set_pixels (surface->surface, x_dst, y_dst, image->width, image->height, &pf, buffer); glitz_buffer_destroy (buffer); return CAIRO_STATUS_SUCCESS; } static cairo_status_t _cairo_glitz_surface_acquire_source_image (void *abstract_surface, cairo_image_surface_t **image_out, void **image_extra) { cairo_glitz_surface_t *surface = abstract_surface; *image_extra = NULL; return _cairo_glitz_surface_get_image (surface, NULL, image_out, NULL); } static void _cairo_glitz_surface_release_source_image (void *abstract_surface, cairo_image_surface_t *image, void *image_extra) { cairo_surface_destroy (&image->base); } static cairo_status_t _cairo_glitz_surface_acquire_dest_image (void *abstract_surface, cairo_rectangle_t *interest_rect, cairo_image_surface_t **image_out, cairo_rectangle_t *image_rect_out, void **image_extra) { cairo_glitz_surface_t *surface = abstract_surface; cairo_image_surface_t *image; cairo_status_t status; status = _cairo_glitz_surface_get_image (surface, interest_rect, &image, image_rect_out); if (status) return status; *image_out = image; *image_extra = NULL; return status; } static void _cairo_glitz_surface_release_dest_image (void *abstract_surface, cairo_rectangle_t *interest_rect, cairo_image_surface_t *image, cairo_rectangle_t *image_rect, void *image_extra) { cairo_glitz_surface_t *surface = abstract_surface; _cairo_glitz_surface_set_image (surface, image, image_rect->x, image_rect->y); cairo_surface_destroy (&image->base); } static cairo_status_t _cairo_glitz_surface_clone_similar (void *abstract_surface, cairo_surface_t *src, cairo_surface_t **clone_out) { cairo_glitz_surface_t *surface = abstract_surface; cairo_glitz_surface_t *clone; if (src->backend == surface->base.backend) { *clone_out = src; cairo_surface_reference (src); return CAIRO_STATUS_SUCCESS; } else if (_cairo_surface_is_image (src)) { cairo_image_surface_t *image_src = (cairo_image_surface_t *) src; clone = (cairo_glitz_surface_t *) _cairo_glitz_surface_create_similar (surface, image_src->format, 0, image_src->width, image_src->height); if (!clone) return CAIRO_STATUS_NO_MEMORY; _cairo_glitz_surface_set_image (clone, image_src, 0, 0); *clone_out = &clone->base; return CAIRO_STATUS_SUCCESS; } return CAIRO_INT_STATUS_UNSUPPORTED; } static void _cairo_glitz_surface_set_matrix (cairo_glitz_surface_t *surface, cairo_matrix_t *matrix) { glitz_transform_t transform; transform.matrix[0][0] = _cairo_fixed_from_double (matrix->xx); transform.matrix[0][1] = _cairo_fixed_from_double (matrix->xy); transform.matrix[0][2] = _cairo_fixed_from_double (matrix->x0); transform.matrix[1][0] = _cairo_fixed_from_double (matrix->yx); transform.matrix[1][1] = _cairo_fixed_from_double (matrix->yy); transform.matrix[1][2] = _cairo_fixed_from_double (matrix->y0); transform.matrix[2][0] = 0; transform.matrix[2][1] = 0; transform.matrix[2][2] = _cairo_fixed_from_double (1); glitz_surface_set_transform (surface->surface, &transform); } static glitz_operator_t _glitz_operator (cairo_operator_t op) { switch (op) { case CAIRO_OPERATOR_CLEAR: return GLITZ_OPERATOR_CLEAR; case CAIRO_OPERATOR_SRC: return GLITZ_OPERATOR_SRC; case CAIRO_OPERATOR_DST: return GLITZ_OPERATOR_DST; case CAIRO_OPERATOR_OVER_REVERSE: return GLITZ_OPERATOR_OVER_REVERSE; case CAIRO_OPERATOR_IN: return GLITZ_OPERATOR_IN; case CAIRO_OPERATOR_IN_REVERSE: return GLITZ_OPERATOR_IN_REVERSE; case CAIRO_OPERATOR_OUT: return GLITZ_OPERATOR_OUT; case CAIRO_OPERATOR_OUT_REVERSE: return GLITZ_OPERATOR_OUT_REVERSE; case CAIRO_OPERATOR_ATOP: return GLITZ_OPERATOR_ATOP; case CAIRO_OPERATOR_ATOP_REVERSE: return GLITZ_OPERATOR_ATOP_REVERSE; case CAIRO_OPERATOR_XOR: return GLITZ_OPERATOR_XOR; case CAIRO_OPERATOR_ADD: return GLITZ_OPERATOR_ADD; case CAIRO_OPERATOR_OVER: default: return GLITZ_OPERATOR_OVER; } } static glitz_status_t _glitz_ensure_target (glitz_surface_t *surface) { glitz_drawable_t *drawable; drawable = glitz_surface_get_attached_drawable (surface); if (!drawable) { glitz_drawable_format_t *dformat; glitz_drawable_format_t templ; glitz_format_t *format; glitz_drawable_t *pbuffer; unsigned long mask; int i; format = glitz_surface_get_format (surface); if (format->type != GLITZ_FORMAT_TYPE_COLOR) return CAIRO_INT_STATUS_UNSUPPORTED; drawable = glitz_surface_get_drawable (surface); dformat = glitz_drawable_get_format (drawable); templ.types.pbuffer = 1; mask = GLITZ_FORMAT_PBUFFER_MASK; templ.samples = dformat->samples; mask |= GLITZ_FORMAT_SAMPLES_MASK; i = 0; do { dformat = glitz_find_similar_drawable_format (drawable, mask, &templ, i++); if (dformat) { int sufficient = 1; if (format->color.red_size) { if (dformat->color.red_size < format->color.red_size) sufficient = 0; } if (format->color.alpha_size) { if (dformat->color.alpha_size < format->color.alpha_size) sufficient = 0; } if (sufficient) break; } } while (dformat); if (!dformat) return CAIRO_INT_STATUS_UNSUPPORTED; pbuffer = glitz_create_pbuffer_drawable (drawable, dformat, glitz_surface_get_width (surface), glitz_surface_get_height (surface)); if (!pbuffer) return CAIRO_INT_STATUS_UNSUPPORTED; glitz_surface_attach (surface, pbuffer, GLITZ_DRAWABLE_BUFFER_FRONT_COLOR, 0, 0); glitz_drawable_destroy (pbuffer); } return CAIRO_STATUS_SUCCESS; } typedef struct _cairo_glitz_surface_attributes { cairo_surface_attributes_t base; glitz_fill_t fill; glitz_filter_t filter; glitz_fixed16_16_t *params; int n_params; cairo_bool_t acquired; } cairo_glitz_surface_attributes_t; static cairo_int_status_t _cairo_glitz_pattern_acquire_surface (cairo_pattern_t *pattern, cairo_glitz_surface_t *dst, int x, int y, unsigned int width, unsigned int height, cairo_glitz_surface_t **surface_out, cairo_glitz_surface_attributes_t *attr) { cairo_glitz_surface_t *src = NULL; attr->acquired = FALSE; switch (pattern->type) { case CAIRO_PATTERN_LINEAR: case CAIRO_PATTERN_RADIAL: { cairo_gradient_pattern_t *gradient = (cairo_gradient_pattern_t *) pattern; glitz_drawable_t *drawable; glitz_fixed16_16_t *params; int n_params; int i; unsigned short alpha; /* XXX: the current color gradient acceleration provided by glitz is * experimental, it's been proven inappropriate in a number of ways, * most importantly, it's currently implemented as filters and * gradients are not filters. eventually, it will be replaced with * something more appropriate. */ if (gradient->n_stops < 2) break; /* glitz doesn't support inner and outer circle with different center points. */ if (pattern->type == CAIRO_PATTERN_RADIAL) { cairo_radial_pattern_t *grad = (cairo_radial_pattern_t *) pattern; if (grad->center0.x != grad->center1.x || grad->center0.y != grad->center1.y) break; } drawable = glitz_surface_get_drawable (dst->surface); if (!(glitz_drawable_get_features (drawable) & GLITZ_FEATURE_FRAGMENT_PROGRAM_MASK)) break; if (pattern->filter != CAIRO_FILTER_BILINEAR && pattern->filter != CAIRO_FILTER_GOOD && pattern->filter != CAIRO_FILTER_BEST) break; alpha = (gradient->stops[0].color.alpha) * 0xffff; for (i = 1; i < gradient->n_stops; i++) { unsigned short a; a = (gradient->stops[i].color.alpha) * 0xffff; if (a != alpha) break; } /* we can't have color stops with different alpha as gradient color interpolation should be done to unpremultiplied colors. */ if (i < gradient->n_stops) break; n_params = gradient->n_stops * 3 + 4; params = malloc (sizeof (glitz_fixed16_16_t) * n_params); if (!params) return CAIRO_STATUS_NO_MEMORY; src = (cairo_glitz_surface_t *) _cairo_surface_create_similar_scratch (&dst->base, CAIRO_FORMAT_ARGB32, 0, gradient->n_stops, 1); if (!src) { free (params); return CAIRO_STATUS_NO_MEMORY; } for (i = 0; i < gradient->n_stops; i++) { glitz_color_t color; color.red = gradient->stops[i].color.red * alpha; color.green = gradient->stops[i].color.green * alpha; color.blue = gradient->stops[i].color.blue * alpha; color.alpha = alpha; glitz_set_rectangle (src->surface, &color, i, 0, 1, 1); params[4 + 3 * i] = gradient->stops[i].offset; params[5 + 3 * i] = i << 16; params[6 + 3 * i] = 0; } if (pattern->type == CAIRO_PATTERN_LINEAR) { cairo_linear_pattern_t *grad = (cairo_linear_pattern_t *) pattern; params[0] = _cairo_fixed_from_double (grad->point0.x); params[1] = _cairo_fixed_from_double (grad->point0.y); params[2] = _cairo_fixed_from_double (grad->point1.x); params[3] = _cairo_fixed_from_double (grad->point1.y); attr->filter = GLITZ_FILTER_LINEAR_GRADIENT; } else { cairo_radial_pattern_t *grad = (cairo_radial_pattern_t *) pattern; params[0] = _cairo_fixed_from_double (grad->center0.x); params[1] = _cairo_fixed_from_double (grad->center0.y); params[2] = _cairo_fixed_from_double (grad->radius0); params[3] = _cairo_fixed_from_double (grad->radius1); attr->filter = GLITZ_FILTER_RADIAL_GRADIENT; } switch (pattern->extend) { case CAIRO_EXTEND_NONE: attr->fill = GLITZ_FILL_NEAREST; break; case CAIRO_EXTEND_REPEAT: attr->fill = GLITZ_FILL_REPEAT; break; case CAIRO_EXTEND_REFLECT: attr->fill = GLITZ_FILL_REFLECT; break; } attr->params = params; attr->n_params = n_params; attr->base.matrix = pattern->matrix; attr->base.x_offset = 0; attr->base.y_offset = 0; } break; default: break; } if (!src) { cairo_int_status_t status; status = _cairo_pattern_acquire_surface (pattern, &dst->base, x, y, width, height, (cairo_surface_t **) &src, &attr->base); if (status) return status; if (src) { switch (attr->base.extend) { case CAIRO_EXTEND_NONE: attr->fill = GLITZ_FILL_TRANSPARENT; break; case CAIRO_EXTEND_REPEAT: attr->fill = GLITZ_FILL_REPEAT; break; case CAIRO_EXTEND_REFLECT: attr->fill = GLITZ_FILL_REFLECT; break; } switch (attr->base.filter) { case CAIRO_FILTER_FAST: case CAIRO_FILTER_NEAREST: attr->filter = GLITZ_FILTER_NEAREST; break; case CAIRO_FILTER_GOOD: case CAIRO_FILTER_BEST: case CAIRO_FILTER_BILINEAR: default: attr->filter = GLITZ_FILTER_BILINEAR; break; } attr->params = NULL; attr->n_params = 0; attr->acquired = TRUE; } } *surface_out = src; return CAIRO_STATUS_SUCCESS; } static void _cairo_glitz_pattern_release_surface (cairo_glitz_surface_t *dst, cairo_glitz_surface_t *surface, cairo_glitz_surface_attributes_t *attr) { if (attr->acquired) _cairo_pattern_release_surface (&dst->base, &surface->base, &attr->base); else cairo_surface_destroy (&surface->base); } static cairo_int_status_t _cairo_glitz_pattern_acquire_surfaces (cairo_pattern_t *src, cairo_pattern_t *mask, cairo_glitz_surface_t *dst, int src_x, int src_y, int mask_x, int mask_y, unsigned int width, unsigned int height, cairo_glitz_surface_t **src_out, cairo_glitz_surface_t **mask_out, cairo_glitz_surface_attributes_t *sattr, cairo_glitz_surface_attributes_t *mattr) { cairo_int_status_t status; cairo_pattern_union_t tmp; /* If src and mask are both solid, then the mask alpha can be * combined into src and mask can be ignored. */ /* XXX: This optimization assumes that there is no color * information in mask, so this will need to change when we * support RENDER-style 4-channel masks. */ if (src->type == CAIRO_PATTERN_SOLID && mask->type == CAIRO_PATTERN_SOLID) { cairo_color_t combined; cairo_solid_pattern_t *src_solid = (cairo_solid_pattern_t *) src; cairo_solid_pattern_t *mask_solid = (cairo_solid_pattern_t *) mask; combined = src_solid->color; _cairo_color_multiply_alpha (&combined, mask_solid->color.alpha); _cairo_pattern_init_solid (&tmp.solid, &combined); mask = NULL; } else { _cairo_pattern_init_copy (&tmp.base, src); } status = _cairo_glitz_pattern_acquire_surface (&tmp.base, dst, src_x, src_y, width, height, src_out, sattr); _cairo_pattern_fini (&tmp.base); if (status) return status; if (mask) { _cairo_pattern_init_copy (&tmp.base, mask); status = _cairo_glitz_pattern_acquire_surface (&tmp.base, dst, mask_x, mask_y, width, height, mask_out, mattr); _cairo_pattern_fini (&tmp.base); if (status) { _cairo_glitz_pattern_release_surface (dst, *src_out, sattr); return status; } } else { *mask_out = NULL; } return CAIRO_STATUS_SUCCESS; } static void _cairo_glitz_surface_set_attributes (cairo_glitz_surface_t *surface, cairo_glitz_surface_attributes_t *a) { _cairo_glitz_surface_set_matrix (surface, &a->base.matrix); glitz_surface_set_fill (surface->surface, a->fill); glitz_surface_set_filter (surface->surface, a->filter, a->params, a->n_params); } static cairo_int_status_t _cairo_glitz_surface_composite (cairo_operator_t op, cairo_pattern_t *src_pattern, cairo_pattern_t *mask_pattern, void *abstract_dst, int src_x, int src_y, int mask_x, int mask_y, int dst_x, int dst_y, unsigned int width, unsigned int height) { cairo_glitz_surface_attributes_t src_attr, mask_attr; cairo_glitz_surface_t *dst = abstract_dst; cairo_glitz_surface_t *src; cairo_glitz_surface_t *mask; cairo_int_status_t status; if (op == CAIRO_OPERATOR_SATURATE) return CAIRO_INT_STATUS_UNSUPPORTED; if (_glitz_ensure_target (dst->surface)) return CAIRO_INT_STATUS_UNSUPPORTED; status = _cairo_glitz_pattern_acquire_surfaces (src_pattern, mask_pattern, dst, src_x, src_y, mask_x, mask_y, width, height, &src, &mask, &src_attr, &mask_attr); if (status) return status; _cairo_glitz_surface_set_attributes (src, &src_attr); if (mask) { _cairo_glitz_surface_set_attributes (mask, &mask_attr); glitz_composite (_glitz_operator (op), src->surface, mask->surface, dst->surface, src_x + src_attr.base.x_offset, src_y + src_attr.base.y_offset, mask_x + mask_attr.base.x_offset, mask_y + mask_attr.base.y_offset, dst_x, dst_y, width, height); if (mask_attr.n_params) free (mask_attr.params); _cairo_glitz_pattern_release_surface (dst, mask, &mask_attr); } else { glitz_composite (_glitz_operator (op), src->surface, NULL, dst->surface, src_x + src_attr.base.x_offset, src_y + src_attr.base.y_offset, 0, 0, dst_x, dst_y, width, height); } if (src_attr.n_params) free (src_attr.params); _cairo_glitz_pattern_release_surface (dst, src, &src_attr); if (glitz_surface_get_status (dst->surface) == GLITZ_STATUS_NOT_SUPPORTED) return CAIRO_INT_STATUS_UNSUPPORTED; return CAIRO_STATUS_SUCCESS; } static cairo_int_status_t _cairo_glitz_surface_fill_rectangles (void *abstract_dst, cairo_operator_t op, const cairo_color_t *color, cairo_rectangle_t *rects, int n_rects) { cairo_glitz_surface_t *dst = abstract_dst; if (op == CAIRO_OPERATOR_SRC) { glitz_color_t glitz_color; glitz_color.red = color->red_short; glitz_color.green = color->green_short; glitz_color.blue = color->blue_short; glitz_color.alpha = color->alpha_short; if (glitz_surface_get_width (dst->surface) != 1 || glitz_surface_get_height (dst->surface) != 1) _glitz_ensure_target (dst->surface); glitz_set_rectangles (dst->surface, &glitz_color, (glitz_rectangle_t *) rects, n_rects); } else { cairo_glitz_surface_t *src; if (op == CAIRO_OPERATOR_SATURATE) return CAIRO_INT_STATUS_UNSUPPORTED; if (_glitz_ensure_target (dst->surface)) return CAIRO_INT_STATUS_UNSUPPORTED; src = (cairo_glitz_surface_t *) _cairo_surface_create_similar_solid (&dst->base, CAIRO_FORMAT_ARGB32, 1, 1, (cairo_color_t *) color); if (!src) return CAIRO_STATUS_NO_MEMORY; while (n_rects--) { glitz_composite (_glitz_operator (op), src->surface, NULL, dst->surface, 0, 0, 0, 0, rects->x, rects->y, rects->width, rects->height); rects++; } cairo_surface_destroy (&src->base); } if (glitz_surface_get_status (dst->surface) == GLITZ_STATUS_NOT_SUPPORTED) return CAIRO_INT_STATUS_UNSUPPORTED; return CAIRO_STATUS_SUCCESS; } static cairo_int_status_t _cairo_glitz_surface_composite_trapezoids (cairo_operator_t op, cairo_pattern_t *pattern, void *abstract_dst, int src_x, int src_y, int dst_x, int dst_y, unsigned int width, unsigned int height, cairo_trapezoid_t *traps, int n_traps) { cairo_glitz_surface_attributes_t attributes; cairo_glitz_surface_t *dst = abstract_dst; cairo_glitz_surface_t *src; cairo_glitz_surface_t *mask = NULL; glitz_buffer_t *buffer = NULL; void *data = NULL; cairo_int_status_t status; unsigned short alpha; if (op == CAIRO_OPERATOR_SATURATE) return CAIRO_INT_STATUS_UNSUPPORTED; if (_glitz_ensure_target (dst->surface)) return CAIRO_INT_STATUS_UNSUPPORTED; if (pattern->type == CAIRO_PATTERN_SURFACE) { cairo_pattern_union_t tmp; _cairo_pattern_init_copy (&tmp.base, pattern); status = _cairo_glitz_pattern_acquire_surface (&tmp.base, dst, src_x, src_y, width, height, &src, &attributes); _cairo_pattern_fini (&tmp.base); } else { status = _cairo_glitz_pattern_acquire_surface (pattern, dst, src_x, src_y, width, height, &src, &attributes); } alpha = 0xffff; if (status) return status; if (op == CAIRO_OPERATOR_ADD || n_traps <= 1) { static glitz_color_t clear_black = { 0, 0, 0, 0 }; glitz_color_t color; glitz_geometry_format_t format; int n_trap_added; int offset = 0; int data_size = 0; int size = 30 * n_traps; /* just a guess */ format.vertex.primitive = GLITZ_PRIMITIVE_QUADS; format.vertex.type = GLITZ_DATA_TYPE_FLOAT; format.vertex.bytes_per_vertex = 3 * sizeof (glitz_float_t); format.vertex.attributes = GLITZ_VERTEX_ATTRIBUTE_MASK_COORD_MASK; format.vertex.mask.type = GLITZ_DATA_TYPE_FLOAT; format.vertex.mask.size = GLITZ_COORDINATE_SIZE_X; format.vertex.mask.offset = 2 * sizeof (glitz_float_t); mask = (cairo_glitz_surface_t *) _cairo_glitz_surface_create_similar (&dst->base, CAIRO_FORMAT_A8, 0, 2, 1); if (!mask) { _cairo_glitz_pattern_release_surface (dst, src, &attributes); return CAIRO_INT_STATUS_UNSUPPORTED; } color.red = color.green = color.blue = color.alpha = 0xffff; glitz_set_rectangle (mask->surface, &clear_black, 0, 0, 1, 1); glitz_set_rectangle (mask->surface, &color, 1, 0, 1, 1); glitz_surface_set_fill (mask->surface, GLITZ_FILL_NEAREST); glitz_surface_set_filter (mask->surface, GLITZ_FILTER_BILINEAR, NULL, 0); size *= format.vertex.bytes_per_vertex; while (n_traps) { if (data_size < size) { data_size = size; data = realloc (data, data_size); if (!data) { _cairo_glitz_pattern_release_surface (dst, src, &attributes); return CAIRO_STATUS_NO_MEMORY; } if (buffer) glitz_buffer_destroy (buffer); buffer = glitz_buffer_create_for_data (data); if (!buffer) { free (data); _cairo_glitz_pattern_release_surface (dst, src, &attributes); return CAIRO_STATUS_NO_MEMORY; } } offset += glitz_add_trapezoids (buffer, offset, size - offset, format.vertex.type, mask->surface, (glitz_trapezoid_t *) traps, n_traps, &n_trap_added); n_traps -= n_trap_added; traps += n_trap_added; size *= 2; } glitz_set_geometry (dst->surface, GLITZ_GEOMETRY_TYPE_VERTEX, &format, buffer); glitz_set_array (dst->surface, 0, 3, offset / format.vertex.bytes_per_vertex, 0, 0); } else { cairo_image_surface_t *image; unsigned char *ptr; int stride; stride = (width + 3) & -4; data = malloc (stride * height); if (!data) { _cairo_glitz_pattern_release_surface (dst, src, &attributes); return CAIRO_STATUS_NO_MEMORY; } memset (data, 0, stride * height); /* using negative stride */ ptr = (unsigned char *) data + stride * (height - 1); image = (cairo_image_surface_t *) cairo_image_surface_create_for_data (ptr, CAIRO_FORMAT_A8, width, height, -stride); if (!image) { cairo_surface_destroy (&src->base); free (data); return CAIRO_STATUS_NO_MEMORY; } pixman_add_trapezoids (image->pixman_image, -dst_x, -dst_y, (pixman_trapezoid_t *) traps, n_traps); mask = (cairo_glitz_surface_t *) _cairo_surface_create_similar_scratch (&dst->base, CAIRO_FORMAT_A8, 0, width, height); if (!mask) { _cairo_glitz_pattern_release_surface (dst, src, &attributes); free (data); cairo_surface_destroy (&image->base); return CAIRO_STATUS_NO_MEMORY; } _cairo_glitz_surface_set_image (mask, image, 0, 0); } _cairo_glitz_surface_set_attributes (src, &attributes); glitz_composite (_glitz_operator (op), src->surface, mask->surface, dst->surface, src_x + attributes.base.x_offset, src_y + attributes.base.y_offset, 0, 0, dst_x, dst_y, width, height); if (attributes.n_params) free (attributes.params); glitz_set_geometry (dst->surface, GLITZ_GEOMETRY_TYPE_NONE, NULL, NULL); if (buffer) glitz_buffer_destroy (buffer); free (data); _cairo_glitz_pattern_release_surface (dst, src, &attributes); if (mask) cairo_surface_destroy (&mask->base); if (glitz_surface_get_status (dst->surface) == GLITZ_STATUS_NOT_SUPPORTED) return CAIRO_INT_STATUS_UNSUPPORTED; return CAIRO_STATUS_SUCCESS; } static cairo_int_status_t _cairo_glitz_surface_set_clip_region (void *abstract_surface, pixman_region16_t *region) { cairo_glitz_surface_t *surface = abstract_surface; if (region) { glitz_box_t *box; int n; if (!surface->clip) { surface->clip = pixman_region_create (); if (!surface->clip) return CAIRO_STATUS_NO_MEMORY; } pixman_region_copy (surface->clip, region); box = (glitz_box_t *) pixman_region_rects (surface->clip); n = pixman_region_num_rects (surface->clip); glitz_surface_set_clip_region (surface->surface, 0, 0, box, n); } else { glitz_surface_set_clip_region (surface->surface, 0, 0, NULL, 0); if (surface->clip) pixman_region_destroy (surface->clip); surface->clip = NULL; } return CAIRO_STATUS_SUCCESS; } static cairo_int_status_t _cairo_glitz_surface_get_extents (void *abstract_surface, cairo_rectangle_t *rectangle) { cairo_glitz_surface_t *surface = abstract_surface; rectangle->x = 0; rectangle->y = 0; rectangle->width = glitz_surface_get_width (surface->surface); rectangle->height = glitz_surface_get_height (surface->surface); return CAIRO_STATUS_SUCCESS; } static const cairo_surface_backend_t cairo_glitz_surface_backend = { _cairo_glitz_surface_create_similar, _cairo_glitz_surface_finish, _cairo_glitz_surface_acquire_source_image, _cairo_glitz_surface_release_source_image, _cairo_glitz_surface_acquire_dest_image, _cairo_glitz_surface_release_dest_image, _cairo_glitz_surface_clone_similar, _cairo_glitz_surface_composite, _cairo_glitz_surface_fill_rectangles, _cairo_glitz_surface_composite_trapezoids, NULL, /* copy_page */ NULL, /* show_page */ _cairo_glitz_surface_set_clip_region, _cairo_glitz_surface_get_extents, NULL /* show_glyphs */ }; cairo_surface_t * cairo_glitz_surface_create (glitz_surface_t *surface) { cairo_glitz_surface_t *crsurface; if (!surface) return NULL; crsurface = malloc (sizeof (cairo_glitz_surface_t)); if (crsurface == NULL) return NULL; _cairo_surface_init (&crsurface->base, &cairo_glitz_surface_backend); glitz_surface_reference (surface); crsurface->surface = surface; crsurface->format = glitz_surface_get_format (surface); crsurface->clip = NULL; return (cairo_surface_t *) crsurface; }