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Diffstat (limited to 'src/cairo-cogl-private.h')
| -rwxr-xr-x | src/cairo-cogl-private.h | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/src/cairo-cogl-private.h b/src/cairo-cogl-private.h new file mode 100755 index 000000000..13fe5a8dc --- /dev/null +++ b/src/cairo-cogl-private.h @@ -0,0 +1,164 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2011 Intel Corporation. + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.og/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * Contributor(s): + * Robert Bragg <robert@linux.intel.com> + */ + +#ifndef CAIRO_COGL_PRIVATE_H +#define CAIRO_COGL_PRIVATE_H + +#include "cairo-device-private.h" +#include "cairo-cache-private.h" +#include "cairo-backend-private.h" +#include "cairo-default-context-private.h" +#include "cairo-surface-private.h" + +#include <cogl/cogl2-experimental.h> + +typedef enum _cairo_cogl_template_type { + CAIRO_COGL_TEMPLATE_TYPE_SOLID, + CAIRO_COGL_TEMPLATE_TYPE_TEXTURE, + CAIRO_COGL_TEMPLATE_TYPE_MASK_SOLID, + CAIRO_COGL_TEMPLATE_TYPE_MASK_TEXTURE, + CAIRO_COGL_TEMPLATE_TYPE_COUNT +} cairo_cogl_template_type; + +typedef struct _cairo_cogl_device { + cairo_device_t base; + + cairo_bool_t backend_vtable_initialized; + cairo_backend_t backend; + + /* We save a copy of all the original backend methods that we override so + * we can chain up... + */ + cairo_backend_t backend_parent; + + CoglContext *cogl_context; + + CoglTexture *dummy_texture; + + /* This is a sparsely filled set of templates because we don't support + * the full range of operators that cairo has. All entries corresponding + * to unsupported operators are NULL. + * + * The CAIRO_OPERATOR_ADD is the operator enum with the highest value that + * we support so we at least cap the size of the array by that. + * + * For each operator we have a template for when we have a solid source + * and another for each texture format that could be used as a source. + */ + CoglPipeline *template_pipelines[CAIRO_OPERATOR_ADD + 1][CAIRO_COGL_TEMPLATE_TYPE_COUNT]; + + CoglMatrix identity; + + /* Caches 1d linear gradient textures */ + cairo_cache_t linear_cache; + + cairo_cache_t path_fill_staging_cache; + cairo_cache_t path_fill_prim_cache; + cairo_cache_t path_stroke_staging_cache; + cairo_cache_t path_stroke_prim_cache; +} cairo_cogl_device_t; + +typedef struct _cairo_cogl_clip_primitives { + cairo_t *clip; + CoglPrimitive **primitives; +} cairo_cogl_clip_primitives_t; + +typedef struct _cairo_cogl_surface { + cairo_surface_t base; + + CoglPixelFormat cogl_format; + cairo_bool_t ignore_alpha; + + /* We currently have 3 basic kinds of Cogl surfaces: + * 1) A light surface simply wrapping a CoglTexture + * 2) A CoglOffscreen framebuffer that implicitly also wraps a CoglTexture + * 3) A CoglOnscreen framebuffer which could potentially be mapped to + * a CoglTexture (e.g. via tfp on X11) but we don't currently do + * that. + */ + + CoglTexture *texture; + CoglFramebuffer *framebuffer; + + int width; + int height; + + GQueue *journal; + + CoglAttributeBuffer *buffer_stack; + size_t buffer_stack_size; + size_t buffer_stack_offset; + guint8 *buffer_stack_pointer; + + cairo_clip_t *last_clip; + + /* A small fifo of recently used cairo_clip_ts paired with CoglPrimitives + * that can be used to mask the stencil buffer. */ + GList *clips_fifo; + + int n_clip_updates_per_frame; + + /* Since the surface backend drawing operator functions don't get + * passed the current cairo_t context we don't have a good way + * to get our user-coordinates path into our surface_fill function. + * + * For now we use our _cairo_cogl_context_fill() wrapper to set this + * side band data on the surface... + */ + cairo_path_fixed_t *user_path; + cairo_matrix_t *ctm; + cairo_matrix_t *ctm_inverse; + cairo_bool_t path_is_rectangle; + double path_rectangle_x; + double path_rectangle_y; + double path_rectangle_width; + double path_rectangle_height; +} cairo_cogl_surface_t; + +cairo_status_t +_cairo_cogl_path_fixed_rectangle (cairo_path_fixed_t *path, + cairo_fixed_t x, + cairo_fixed_t y, + cairo_fixed_t width, + cairo_fixed_t height); + +cairo_int_status_t +_cairo_cogl_surface_fill_rectangle (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + double x, + double y, + double width, + double height, + cairo_matrix_t *ctm, + const cairo_clip_t *clip); + +#endif /* CAIRO_COGL_PRIVATE_H */ |