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Diffstat (limited to 'src/drm/cairo-drm-intel-surface.c')
-rw-r--r--src/drm/cairo-drm-intel-surface.c451
1 files changed, 451 insertions, 0 deletions
diff --git a/src/drm/cairo-drm-intel-surface.c b/src/drm/cairo-drm-intel-surface.c
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index 000000000..88f5b8f0c
--- /dev/null
+++ b/src/drm/cairo-drm-intel-surface.c
@@ -0,0 +1,451 @@
+/* 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"
+
+/* 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));
+ _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 = 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 = 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 = 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);
+}