mirror of
https://github.com/brl/mutter.git
synced 2024-09-19 22:15:54 -04:00
a81435ab5f
This basically reverts commit 54735dec, which tried to avoid the
GLib-defined types in favor the standard C ones. One exception to this
is the bool type, for which the commit introduces a new type CoglBool.
Let's just get rid of this type in favor of having consistency with the
GLib types. Note by the way that neither CoglBool nor gboolean (which
has a size of `int`) are completely compatible with bool (size `char`).
https://gitlab.gnome.org/GNOME/mutter/merge_requests/321
644 lines
22 KiB
C
644 lines
22 KiB
C
/*
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* Cogl
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*
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* A Low Level GPU Graphics and Utilities API
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*
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* Copyright (C) 2010 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*
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*
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* Authors:
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* Robert Bragg <robert@linux.intel.com>
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*/
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#include "cogl-config.h"
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#include "cogl-util.h"
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#include "cogl-object-private.h"
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#include "cogl-primitive.h"
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#include "cogl-primitive-private.h"
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#include "cogl-attribute-private.h"
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#include "cogl-framebuffer-private.h"
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#include "cogl-gtype-private.h"
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#include <stdarg.h>
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#include <string.h>
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static void _cogl_primitive_free (CoglPrimitive *primitive);
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COGL_OBJECT_DEFINE (Primitive, primitive);
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COGL_GTYPE_DEFINE_CLASS (Primitive, primitive);
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CoglPrimitive *
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cogl_primitive_new_with_attributes (CoglVerticesMode mode,
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int n_vertices,
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CoglAttribute **attributes,
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int n_attributes)
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{
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CoglPrimitive *primitive;
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int i;
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primitive = g_slice_alloc (sizeof (CoglPrimitive) +
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sizeof (CoglAttribute *) * (n_attributes - 1));
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primitive->mode = mode;
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primitive->first_vertex = 0;
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primitive->n_vertices = n_vertices;
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primitive->indices = NULL;
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primitive->immutable_ref = 0;
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primitive->n_attributes = n_attributes;
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primitive->n_embedded_attributes = n_attributes;
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primitive->attributes = &primitive->embedded_attribute;
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for (i = 0; i < n_attributes; i++)
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{
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CoglAttribute *attribute = attributes[i];
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cogl_object_ref (attribute);
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_COGL_RETURN_VAL_IF_FAIL (cogl_is_attribute (attribute), NULL);
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primitive->attributes[i] = attribute;
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}
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return _cogl_primitive_object_new (primitive);
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}
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/* This is just an internal convenience wrapper around
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new_with_attributes that also unrefs the attributes. It is just
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used for the builtin struct constructors */
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static CoglPrimitive *
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_cogl_primitive_new_with_attributes_unref (CoglVerticesMode mode,
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int n_vertices,
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CoglAttribute **attributes,
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int n_attributes)
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{
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CoglPrimitive *primitive;
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int i;
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primitive = cogl_primitive_new_with_attributes (mode,
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n_vertices,
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attributes,
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n_attributes);
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for (i = 0; i < n_attributes; i++)
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cogl_object_unref (attributes[i]);
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return primitive;
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}
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CoglPrimitive *
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cogl_primitive_new (CoglVerticesMode mode,
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int n_vertices,
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...)
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{
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va_list ap;
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int n_attributes;
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CoglAttribute **attributes;
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int i;
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CoglAttribute *attribute;
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va_start (ap, n_vertices);
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for (n_attributes = 0; va_arg (ap, CoglAttribute *); n_attributes++)
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;
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va_end (ap);
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attributes = g_alloca (sizeof (CoglAttribute *) * n_attributes);
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va_start (ap, n_vertices);
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for (i = 0; (attribute = va_arg (ap, CoglAttribute *)); i++)
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attributes[i] = attribute;
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va_end (ap);
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return cogl_primitive_new_with_attributes (mode, n_vertices,
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attributes,
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i);
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}
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CoglPrimitive *
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cogl_primitive_new_p2 (CoglContext *ctx,
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CoglVerticesMode mode,
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int n_vertices,
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const CoglVertexP2 *data)
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{
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CoglAttributeBuffer *attribute_buffer =
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cogl_attribute_buffer_new (ctx, n_vertices * sizeof (CoglVertexP2), data);
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CoglAttribute *attributes[1];
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attributes[0] = cogl_attribute_new (attribute_buffer,
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"cogl_position_in",
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sizeof (CoglVertexP2),
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offsetof (CoglVertexP2, x),
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2,
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COGL_ATTRIBUTE_TYPE_FLOAT);
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cogl_object_unref (attribute_buffer);
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return _cogl_primitive_new_with_attributes_unref (mode, n_vertices,
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attributes,
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1);
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}
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CoglPrimitive *
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cogl_primitive_new_p3 (CoglContext *ctx,
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CoglVerticesMode mode,
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int n_vertices,
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const CoglVertexP3 *data)
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{
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CoglAttributeBuffer *attribute_buffer =
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cogl_attribute_buffer_new (ctx, n_vertices * sizeof (CoglVertexP3), data);
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CoglAttribute *attributes[1];
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attributes[0] = cogl_attribute_new (attribute_buffer,
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"cogl_position_in",
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sizeof (CoglVertexP3),
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offsetof (CoglVertexP3, x),
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3,
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COGL_ATTRIBUTE_TYPE_FLOAT);
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cogl_object_unref (attribute_buffer);
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return _cogl_primitive_new_with_attributes_unref (mode, n_vertices,
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attributes,
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1);
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}
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CoglPrimitive *
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cogl_primitive_new_p2c4 (CoglContext *ctx,
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CoglVerticesMode mode,
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int n_vertices,
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const CoglVertexP2C4 *data)
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{
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CoglAttributeBuffer *attribute_buffer =
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cogl_attribute_buffer_new (ctx, n_vertices * sizeof (CoglVertexP2C4), data);
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CoglAttribute *attributes[2];
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attributes[0] = cogl_attribute_new (attribute_buffer,
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"cogl_position_in",
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sizeof (CoglVertexP2C4),
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offsetof (CoglVertexP2C4, x),
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2,
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COGL_ATTRIBUTE_TYPE_FLOAT);
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attributes[1] = cogl_attribute_new (attribute_buffer,
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"cogl_color_in",
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sizeof (CoglVertexP2C4),
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offsetof (CoglVertexP2C4, r),
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4,
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COGL_ATTRIBUTE_TYPE_UNSIGNED_BYTE);
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cogl_object_unref (attribute_buffer);
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return _cogl_primitive_new_with_attributes_unref (mode, n_vertices,
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attributes,
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2);
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}
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CoglPrimitive *
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cogl_primitive_new_p3c4 (CoglContext *ctx,
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CoglVerticesMode mode,
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int n_vertices,
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const CoglVertexP3C4 *data)
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{
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CoglAttributeBuffer *attribute_buffer =
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cogl_attribute_buffer_new (ctx, n_vertices * sizeof (CoglVertexP3C4), data);
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CoglAttribute *attributes[2];
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attributes[0] = cogl_attribute_new (attribute_buffer,
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"cogl_position_in",
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sizeof (CoglVertexP3C4),
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offsetof (CoglVertexP3C4, x),
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3,
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COGL_ATTRIBUTE_TYPE_FLOAT);
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attributes[1] = cogl_attribute_new (attribute_buffer,
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"cogl_color_in",
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sizeof (CoglVertexP3C4),
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offsetof (CoglVertexP3C4, r),
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4,
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COGL_ATTRIBUTE_TYPE_UNSIGNED_BYTE);
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cogl_object_unref (attribute_buffer);
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return _cogl_primitive_new_with_attributes_unref (mode, n_vertices,
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attributes,
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2);
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}
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CoglPrimitive *
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cogl_primitive_new_p2t2 (CoglContext *ctx,
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CoglVerticesMode mode,
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int n_vertices,
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const CoglVertexP2T2 *data)
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{
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CoglAttributeBuffer *attribute_buffer =
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cogl_attribute_buffer_new (ctx, n_vertices * sizeof (CoglVertexP2T2), data);
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CoglAttribute *attributes[2];
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attributes[0] = cogl_attribute_new (attribute_buffer,
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"cogl_position_in",
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sizeof (CoglVertexP2T2),
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offsetof (CoglVertexP2T2, x),
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2,
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COGL_ATTRIBUTE_TYPE_FLOAT);
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attributes[1] = cogl_attribute_new (attribute_buffer,
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"cogl_tex_coord0_in",
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sizeof (CoglVertexP2T2),
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offsetof (CoglVertexP2T2, s),
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2,
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COGL_ATTRIBUTE_TYPE_FLOAT);
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cogl_object_unref (attribute_buffer);
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return _cogl_primitive_new_with_attributes_unref (mode, n_vertices,
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attributes,
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2);
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}
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CoglPrimitive *
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cogl_primitive_new_p3t2 (CoglContext *ctx,
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CoglVerticesMode mode,
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int n_vertices,
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const CoglVertexP3T2 *data)
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{
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CoglAttributeBuffer *attribute_buffer =
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cogl_attribute_buffer_new (ctx, n_vertices * sizeof (CoglVertexP3T2), data);
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CoglAttribute *attributes[2];
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attributes[0] = cogl_attribute_new (attribute_buffer,
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"cogl_position_in",
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sizeof (CoglVertexP3T2),
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offsetof (CoglVertexP3T2, x),
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3,
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COGL_ATTRIBUTE_TYPE_FLOAT);
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attributes[1] = cogl_attribute_new (attribute_buffer,
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"cogl_tex_coord0_in",
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sizeof (CoglVertexP3T2),
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offsetof (CoglVertexP3T2, s),
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2,
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COGL_ATTRIBUTE_TYPE_FLOAT);
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cogl_object_unref (attribute_buffer);
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return _cogl_primitive_new_with_attributes_unref (mode, n_vertices,
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attributes,
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2);
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}
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CoglPrimitive *
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cogl_primitive_new_p2t2c4 (CoglContext *ctx,
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CoglVerticesMode mode,
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int n_vertices,
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const CoglVertexP2T2C4 *data)
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{
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CoglAttributeBuffer *attribute_buffer =
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cogl_attribute_buffer_new (ctx,
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n_vertices * sizeof (CoglVertexP2T2C4), data);
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CoglAttribute *attributes[3];
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attributes[0] = cogl_attribute_new (attribute_buffer,
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"cogl_position_in",
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sizeof (CoglVertexP2T2C4),
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offsetof (CoglVertexP2T2C4, x),
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2,
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COGL_ATTRIBUTE_TYPE_FLOAT);
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attributes[1] = cogl_attribute_new (attribute_buffer,
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"cogl_tex_coord0_in",
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sizeof (CoglVertexP2T2C4),
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offsetof (CoglVertexP2T2C4, s),
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2,
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COGL_ATTRIBUTE_TYPE_FLOAT);
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attributes[2] = cogl_attribute_new (attribute_buffer,
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"cogl_color_in",
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sizeof (CoglVertexP2T2C4),
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offsetof (CoglVertexP2T2C4, r),
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4,
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COGL_ATTRIBUTE_TYPE_UNSIGNED_BYTE);
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cogl_object_unref (attribute_buffer);
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return _cogl_primitive_new_with_attributes_unref (mode, n_vertices,
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attributes,
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3);
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}
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CoglPrimitive *
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cogl_primitive_new_p3t2c4 (CoglContext *ctx,
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CoglVerticesMode mode,
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int n_vertices,
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const CoglVertexP3T2C4 *data)
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{
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CoglAttributeBuffer *attribute_buffer =
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cogl_attribute_buffer_new (ctx,
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n_vertices * sizeof (CoglVertexP3T2C4), data);
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CoglAttribute *attributes[3];
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attributes[0] = cogl_attribute_new (attribute_buffer,
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"cogl_position_in",
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sizeof (CoglVertexP3T2C4),
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offsetof (CoglVertexP3T2C4, x),
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3,
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COGL_ATTRIBUTE_TYPE_FLOAT);
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attributes[1] = cogl_attribute_new (attribute_buffer,
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"cogl_tex_coord0_in",
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sizeof (CoglVertexP3T2C4),
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offsetof (CoglVertexP3T2C4, s),
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2,
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COGL_ATTRIBUTE_TYPE_FLOAT);
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attributes[2] = cogl_attribute_new (attribute_buffer,
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"cogl_color_in",
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sizeof (CoglVertexP3T2C4),
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offsetof (CoglVertexP3T2C4, r),
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4,
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COGL_ATTRIBUTE_TYPE_UNSIGNED_BYTE);
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cogl_object_unref (attribute_buffer);
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return _cogl_primitive_new_with_attributes_unref (mode, n_vertices,
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attributes,
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3);
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}
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static void
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_cogl_primitive_free (CoglPrimitive *primitive)
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{
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int i;
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for (i = 0; i < primitive->n_attributes; i++)
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cogl_object_unref (primitive->attributes[i]);
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if (primitive->attributes != &primitive->embedded_attribute)
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g_slice_free1 (sizeof (CoglAttribute *) * primitive->n_attributes,
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primitive->attributes);
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if (primitive->indices)
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cogl_object_unref (primitive->indices);
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g_slice_free1 (sizeof (CoglPrimitive) +
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sizeof (CoglAttribute *) *
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(primitive->n_embedded_attributes - 1), primitive);
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}
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static void
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warn_about_midscene_changes (void)
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{
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static gboolean seen = FALSE;
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if (!seen)
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{
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g_warning ("Mid-scene modification of primitives has "
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"undefined results\n");
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seen = TRUE;
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}
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}
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void
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cogl_primitive_set_attributes (CoglPrimitive *primitive,
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CoglAttribute **attributes,
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int n_attributes)
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{
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int i;
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_COGL_RETURN_IF_FAIL (cogl_is_primitive (primitive));
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if (G_UNLIKELY (primitive->immutable_ref))
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{
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warn_about_midscene_changes ();
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return;
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}
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/* NB: we don't unref the previous attributes before refing the new
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* in case we would end up releasing the last reference for an
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* attribute thats actually in the new list too. */
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for (i = 0; i < n_attributes; i++)
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{
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_COGL_RETURN_IF_FAIL (cogl_is_attribute (attributes[i]));
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cogl_object_ref (attributes[i]);
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}
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for (i = 0; i < primitive->n_attributes; i++)
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cogl_object_unref (primitive->attributes[i]);
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/* First try to use the embedded storage assocated with the
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* primitive, else fallback to slice allocating separate storage for
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* the attribute pointers... */
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if (n_attributes <= primitive->n_embedded_attributes)
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{
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if (primitive->attributes != &primitive->embedded_attribute)
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g_slice_free1 (sizeof (CoglAttribute *) * primitive->n_attributes,
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primitive->attributes);
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primitive->attributes = &primitive->embedded_attribute;
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}
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else
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{
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if (primitive->attributes != &primitive->embedded_attribute)
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g_slice_free1 (sizeof (CoglAttribute *) * primitive->n_attributes,
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primitive->attributes);
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primitive->attributes =
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g_slice_alloc (sizeof (CoglAttribute *) * n_attributes);
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}
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memcpy (primitive->attributes, attributes,
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sizeof (CoglAttribute *) * n_attributes);
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primitive->n_attributes = n_attributes;
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}
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int
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cogl_primitive_get_first_vertex (CoglPrimitive *primitive)
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{
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_COGL_RETURN_VAL_IF_FAIL (cogl_is_primitive (primitive), 0);
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return primitive->first_vertex;
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}
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void
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cogl_primitive_set_first_vertex (CoglPrimitive *primitive,
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int first_vertex)
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{
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_COGL_RETURN_IF_FAIL (cogl_is_primitive (primitive));
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if (G_UNLIKELY (primitive->immutable_ref))
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{
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warn_about_midscene_changes ();
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return;
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}
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primitive->first_vertex = first_vertex;
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}
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int
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cogl_primitive_get_n_vertices (CoglPrimitive *primitive)
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{
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_COGL_RETURN_VAL_IF_FAIL (cogl_is_primitive (primitive), 0);
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return primitive->n_vertices;
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}
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void
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cogl_primitive_set_n_vertices (CoglPrimitive *primitive,
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int n_vertices)
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{
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_COGL_RETURN_IF_FAIL (cogl_is_primitive (primitive));
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primitive->n_vertices = n_vertices;
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}
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CoglVerticesMode
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cogl_primitive_get_mode (CoglPrimitive *primitive)
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{
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_COGL_RETURN_VAL_IF_FAIL (cogl_is_primitive (primitive), 0);
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return primitive->mode;
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}
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void
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cogl_primitive_set_mode (CoglPrimitive *primitive,
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CoglVerticesMode mode)
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|
{
|
|
_COGL_RETURN_IF_FAIL (cogl_is_primitive (primitive));
|
|
|
|
if (G_UNLIKELY (primitive->immutable_ref))
|
|
{
|
|
warn_about_midscene_changes ();
|
|
return;
|
|
}
|
|
|
|
primitive->mode = mode;
|
|
}
|
|
|
|
void
|
|
cogl_primitive_set_indices (CoglPrimitive *primitive,
|
|
CoglIndices *indices,
|
|
int n_indices)
|
|
{
|
|
_COGL_RETURN_IF_FAIL (cogl_is_primitive (primitive));
|
|
|
|
if (G_UNLIKELY (primitive->immutable_ref))
|
|
{
|
|
warn_about_midscene_changes ();
|
|
return;
|
|
}
|
|
|
|
if (indices)
|
|
cogl_object_ref (indices);
|
|
if (primitive->indices)
|
|
cogl_object_unref (primitive->indices);
|
|
primitive->indices = indices;
|
|
primitive->n_vertices = n_indices;
|
|
}
|
|
|
|
CoglIndices *
|
|
cogl_primitive_get_indices (CoglPrimitive *primitive)
|
|
{
|
|
return primitive->indices;
|
|
}
|
|
|
|
CoglPrimitive *
|
|
cogl_primitive_copy (CoglPrimitive *primitive)
|
|
{
|
|
CoglPrimitive *copy;
|
|
|
|
copy = cogl_primitive_new_with_attributes (primitive->mode,
|
|
primitive->n_vertices,
|
|
primitive->attributes,
|
|
primitive->n_attributes);
|
|
|
|
cogl_primitive_set_indices (copy, primitive->indices, primitive->n_vertices);
|
|
cogl_primitive_set_first_vertex (copy, primitive->first_vertex);
|
|
|
|
return copy;
|
|
}
|
|
|
|
CoglPrimitive *
|
|
_cogl_primitive_immutable_ref (CoglPrimitive *primitive)
|
|
{
|
|
int i;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_primitive (primitive), NULL);
|
|
|
|
primitive->immutable_ref++;
|
|
|
|
for (i = 0; i < primitive->n_attributes; i++)
|
|
_cogl_attribute_immutable_ref (primitive->attributes[i]);
|
|
|
|
return primitive;
|
|
}
|
|
|
|
void
|
|
_cogl_primitive_immutable_unref (CoglPrimitive *primitive)
|
|
{
|
|
int i;
|
|
|
|
_COGL_RETURN_IF_FAIL (cogl_is_primitive (primitive));
|
|
_COGL_RETURN_IF_FAIL (primitive->immutable_ref > 0);
|
|
|
|
primitive->immutable_ref--;
|
|
|
|
for (i = 0; i < primitive->n_attributes; i++)
|
|
_cogl_attribute_immutable_unref (primitive->attributes[i]);
|
|
}
|
|
|
|
void
|
|
cogl_primitive_foreach_attribute (CoglPrimitive *primitive,
|
|
CoglPrimitiveAttributeCallback callback,
|
|
void *user_data)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < primitive->n_attributes; i++)
|
|
if (!callback (primitive, primitive->attributes[i], user_data))
|
|
break;
|
|
}
|
|
|
|
void
|
|
_cogl_primitive_draw (CoglPrimitive *primitive,
|
|
CoglFramebuffer *framebuffer,
|
|
CoglPipeline *pipeline,
|
|
CoglDrawFlags flags)
|
|
{
|
|
if (primitive->indices)
|
|
_cogl_framebuffer_draw_indexed_attributes (framebuffer,
|
|
pipeline,
|
|
primitive->mode,
|
|
primitive->first_vertex,
|
|
primitive->n_vertices,
|
|
primitive->indices,
|
|
primitive->attributes,
|
|
primitive->n_attributes,
|
|
flags);
|
|
else
|
|
_cogl_framebuffer_draw_attributes (framebuffer,
|
|
pipeline,
|
|
primitive->mode,
|
|
primitive->first_vertex,
|
|
primitive->n_vertices,
|
|
primitive->attributes,
|
|
primitive->n_attributes,
|
|
flags);
|
|
}
|
|
|
|
void
|
|
cogl_primitive_draw (CoglPrimitive *primitive,
|
|
CoglFramebuffer *framebuffer,
|
|
CoglPipeline *pipeline)
|
|
{
|
|
_cogl_primitive_draw (primitive, framebuffer, pipeline, 0 /* flags */);
|
|
}
|