diff options
Diffstat (limited to 'libs/cairo-1.16.0/src/drm/cairo-drm-intel-surface.c')
| -rw-r--r-- | libs/cairo-1.16.0/src/drm/cairo-drm-intel-surface.c | 454 |
1 files changed, 454 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/src/drm/cairo-drm-intel-surface.c b/libs/cairo-1.16.0/src/drm/cairo-drm-intel-surface.c new file mode 100644 index 0000000..8fe2c3a --- /dev/null +++ b/libs/cairo-1.16.0/src/drm/cairo-drm-intel-surface.c @@ -0,0 +1,454 @@ +/* Cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Chris Wilson + * + * 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.org/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. + * + */ + +#include "cairoint.h" + +#include "cairo-drm-private.h" +#include "cairo-drm-intel-private.h" + +#include "cairo-default-context-private.h" +#include "cairo-error-private.h" +#include "cairo-image-surface-private.h" + +/* Basic generic/stub surface for intel chipsets */ + +#define MAX_SIZE 2048 + +static cairo_surface_t * +intel_surface_create_similar (void *abstract_surface, + cairo_content_t content, + int width, + int height) +{ + return cairo_image_surface_create (_cairo_format_from_content (content), + width, height); +} + +cairo_status_t +intel_surface_finish (void *abstract_surface) +{ + intel_surface_t *surface = abstract_surface; + + intel_bo_in_flight_add (to_intel_device (surface->drm.base.device), + to_intel_bo (surface->drm.bo)); + return _cairo_drm_surface_finish (&surface->drm); +} + +static void +surface_finish_and_destroy (cairo_surface_t *surface) +{ + cairo_surface_finish (surface); + cairo_surface_destroy (surface); +} + +cairo_status_t +intel_surface_acquire_source_image (void *abstract_surface, + cairo_image_surface_t **image_out, + void **image_extra) +{ + intel_surface_t *surface = abstract_surface; + cairo_surface_t *image; + cairo_status_t status; + void *ptr; + + if (surface->drm.fallback != NULL) { + image = surface->drm.fallback; + goto DONE; + } + + image = _cairo_surface_has_snapshot (&surface->drm.base, + &_cairo_image_surface_backend); + if (image != NULL) + goto DONE; + + if (surface->drm.base.backend->flush != NULL) { + status = surface->drm.base.backend->flush (surface); + if (unlikely (status)) + return status; + } + + ptr = intel_bo_map (to_intel_device (surface->drm.base.device), + to_intel_bo (surface->drm.bo)); + if (unlikely (ptr == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + image = cairo_image_surface_create_for_data (ptr, + surface->drm.format, + surface->drm.width, + surface->drm.height, + surface->drm.stride); + if (unlikely (image->status)) + return image->status; + + _cairo_surface_attach_snapshot (&surface->drm.base, image, surface_finish_and_destroy); + +DONE: + *image_out = (cairo_image_surface_t *) cairo_surface_reference (image); + *image_extra = NULL; + return CAIRO_STATUS_SUCCESS; +} + +void +intel_surface_release_source_image (void *abstract_surface, + cairo_image_surface_t *image, + void *image_extra) +{ + cairo_surface_destroy (&image->base); +} + +cairo_surface_t * +intel_surface_map_to_image (void *abstract_surface) +{ + intel_surface_t *surface = abstract_surface; + + if (surface->drm.fallback == NULL) { + cairo_surface_t *image; + cairo_status_t status; + void *ptr; + + if (surface->drm.base.backend->flush != NULL) { + status = surface->drm.base.backend->flush (surface); + if (unlikely (status)) + return _cairo_surface_create_in_error (status); + } + + ptr = intel_bo_map (to_intel_device (surface->drm.base.device), + to_intel_bo (surface->drm.bo)); + if (unlikely (ptr == NULL)) + return _cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY); + + image = cairo_image_surface_create_for_data (ptr, + surface->drm.format, + surface->drm.width, + surface->drm.height, + surface->drm.stride); + if (unlikely (image->status)) + return image; + + surface->drm.fallback = image; + } + + return surface->drm.fallback; +} + +cairo_status_t +intel_surface_flush (void *abstract_surface, unsigned flags) +{ + intel_surface_t *surface = abstract_surface; + cairo_status_t status; + + if (flags) + return CAIRO_STATUS_SUCCESS; + + if (surface->drm.fallback == NULL) + return CAIRO_STATUS_SUCCESS; + + /* kill any outstanding maps */ + cairo_surface_finish (surface->drm.fallback); + + status = cairo_surface_status (surface->drm.fallback); + cairo_surface_destroy (surface->drm.fallback); + surface->drm.fallback = NULL; + + return status; +} + +static cairo_int_status_t +intel_surface_paint (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_clip_t *clip) +{ + return _cairo_surface_paint (intel_surface_map_to_image (abstract_surface), + op, source, clip); +} + +static cairo_int_status_t +intel_surface_mask (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + const cairo_pattern_t *mask, + cairo_clip_t *clip) +{ + return _cairo_surface_mask (intel_surface_map_to_image (abstract_surface), + op, source, mask, clip); +} + +static cairo_int_status_t +intel_surface_stroke (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_path_fixed_t *path, + const cairo_stroke_style_t *stroke_style, + const cairo_matrix_t *ctm, + const cairo_matrix_t *ctm_inverse, + double tolerance, + cairo_antialias_t antialias, + cairo_clip_t *clip) +{ + return _cairo_surface_stroke (intel_surface_map_to_image (abstract_surface), + op, source, path, stroke_style, ctm, ctm_inverse, + tolerance, antialias, clip); +} + +static cairo_int_status_t +intel_surface_fill (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_path_fixed_t *path, + cairo_fill_rule_t fill_rule, + double tolerance, + cairo_antialias_t antialias, + cairo_clip_t *clip) +{ + return _cairo_surface_fill (intel_surface_map_to_image (abstract_surface), + op, source, path, fill_rule, + tolerance, antialias, clip); +} + +static cairo_int_status_t +intel_surface_glyphs (void *abstract_surface, + cairo_operator_t op, + const cairo_pattern_t *source, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_scaled_font_t *scaled_font, + cairo_clip_t *clip, + int *num_remaining) +{ + *num_remaining = 0; + return _cairo_surface_show_text_glyphs (intel_surface_map_to_image (abstract_surface), + op, source, + NULL, 0, + glyphs, num_glyphs, + NULL, 0, 0, + scaled_font, clip); +} + +static const cairo_surface_backend_t intel_surface_backend = { + CAIRO_SURFACE_TYPE_DRM, + _cairo_default_context_create, + + intel_surface_create_similar, + intel_surface_finish, + + NULL, + intel_surface_acquire_source_image, + intel_surface_release_source_image, + + NULL, NULL, NULL, + NULL, /* composite */ + NULL, /* fill */ + NULL, /* trapezoids */ + NULL, /* span */ + NULL, /* check-span */ + + NULL, /* copy_page */ + NULL, /* show_page */ + _cairo_drm_surface_get_extents, + NULL, /* old-glyphs */ + _cairo_drm_surface_get_font_options, + + intel_surface_flush, + NULL, /* mark dirty */ + NULL, NULL, /* font/glyph fini */ + + intel_surface_paint, + intel_surface_mask, + intel_surface_stroke, + intel_surface_fill, + intel_surface_glyphs, +}; + +void +intel_surface_init (intel_surface_t *surface, + const cairo_surface_backend_t *backend, + cairo_drm_device_t *device, + cairo_format_t format, + int width, int height) +{ + _cairo_surface_init (&surface->drm.base, + backend, + &device->base, + _cairo_content_from_format (format), + FALSE); + + _cairo_drm_surface_init (&surface->drm, format, width, height); + + surface->snapshot_cache_entry.hash = 0; +} + +static cairo_surface_t * +intel_surface_create (cairo_drm_device_t *device, + cairo_format_t format, + int width, int height) +{ + intel_surface_t *surface; + cairo_status_t status; + + surface = _cairo_malloc (sizeof (intel_surface_t)); + if (unlikely (surface == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + intel_surface_init (surface, &intel_surface_backend, device, + format, width, height); + + if (width && height) { + /* Vol I, p134: size restrictions for textures */ + width = (width + 3) & -4; + height = (height + 1) & -2; + surface->drm.stride = + cairo_format_stride_for_width (surface->drm.format, width); + surface->drm.bo = &intel_bo_create (to_intel_device (&device->base), + surface->drm.stride * height, + surface->drm.stride * height, + TRUE, I915_TILING_NONE, surface->drm.stride)->base; + if (surface->drm.bo == NULL) { + status = _cairo_drm_surface_finish (&surface->drm); + free (surface); + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + } + } + + return &surface->drm.base; +} + +static cairo_surface_t * +intel_surface_create_for_name (cairo_drm_device_t *device, + unsigned int name, + cairo_format_t format, + int width, int height, int stride) +{ + intel_surface_t *surface; + cairo_status_t status; + + switch (format) { + default: + case CAIRO_FORMAT_INVALID: + case CAIRO_FORMAT_A1: + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_FORMAT)); + case CAIRO_FORMAT_ARGB32: + case CAIRO_FORMAT_RGB16_565: + case CAIRO_FORMAT_RGB24: + case CAIRO_FORMAT_A8: + break; + } + + if (stride < cairo_format_stride_for_width (format, width)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_STRIDE)); + + surface = _cairo_malloc (sizeof (intel_surface_t)); + if (unlikely (surface == NULL)) + return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); + + intel_surface_init (surface, &intel_surface_backend, + device, format, width, height); + + if (width && height) { + surface->drm.stride = stride; + + surface->drm.bo = &intel_bo_create_for_name (to_intel_device (&device->base), + name)->base; + if (unlikely (surface->drm.bo == NULL)) { + status = _cairo_drm_surface_finish (&surface->drm); + free (surface); + return _cairo_surface_create_in_error (_cairo_error + (CAIRO_STATUS_NO_MEMORY)); + } + } + + return &surface->drm.base; +} + +static cairo_status_t +intel_surface_enable_scan_out (void *abstract_surface) +{ + intel_surface_t *surface = abstract_surface; + + if (unlikely (surface->drm.bo == NULL)) + return _cairo_error (CAIRO_STATUS_INVALID_SIZE); + + to_intel_bo (surface->drm.bo)->tiling = I915_TILING_X; + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +intel_device_throttle (cairo_drm_device_t *device) +{ + intel_throttle (to_intel_device (&device->base)); + return CAIRO_STATUS_SUCCESS; +} + +static void +intel_device_destroy (void *data) +{ + intel_device_t *device = data; + + intel_device_fini (device); + + free (data); +} + +cairo_drm_device_t * +_cairo_drm_intel_device_create (int fd, dev_t dev, int vendor_id, int chip_id) +{ + intel_device_t *device; + cairo_status_t status; + + if (! intel_info (fd, NULL)) + return NULL; + + device = _cairo_malloc (sizeof (intel_device_t)); + if (unlikely (device == NULL)) + return (cairo_drm_device_t *) _cairo_device_create_in_error (CAIRO_STATUS_NO_MEMORY); + + status = intel_device_init (device, fd); + if (unlikely (status)) { + free (device); + return (cairo_drm_device_t *) _cairo_device_create_in_error (status); + } + + device->base.surface.create = intel_surface_create; + device->base.surface.create_for_name = intel_surface_create_for_name; + device->base.surface.create_from_cacheable_image = NULL; + device->base.surface.flink = _cairo_drm_surface_flink; + device->base.surface.enable_scan_out = intel_surface_enable_scan_out; + + device->base.surface.map_to_image = intel_surface_map_to_image; + + device->base.device.flush = NULL; + device->base.device.throttle = intel_device_throttle; + device->base.device.destroy = intel_device_destroy; + + return _cairo_drm_device_init (&device->base, + fd, dev, + vendor_id, chip_id, + MAX_SIZE); +} |