mirror of
https://github.com/brl/mutter.git
synced 2024-12-25 20:32:16 +00:00
6e379fb54e
This makes it possible to create vertex attributes that efficiently represent constant values without duplicating the constant for every vertex. This adds the following new constructors for constant attributes: cogl_attribute_new_const_1f cogl_attribute_new_const_2fv cogl_attribute_new_const_3fv cogl_attribute_new_const_4fv cogl_attribute_new_const_2f cogl_attribute_new_const_3f cogl_attribute_new_const_4f cogl_attribute_new_const_2x2fv cogl_attribute_new_const_3x3fv cogl_attribute_new_const_4x4fv Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 6507216f8030e84dcf2e63b8ecfe906ac47f2ca7)
131 lines
3.6 KiB
C
131 lines
3.6 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2010 Intel Corporation.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see
|
|
* <http://www.gnu.org/licenses/>.
|
|
*
|
|
*
|
|
*
|
|
* Authors:
|
|
* Robert Bragg <robert@linux.intel.com>
|
|
*/
|
|
|
|
#ifndef __COGL_ATTRIBUTE_PRIVATE_H
|
|
#define __COGL_ATTRIBUTE_PRIVATE_H
|
|
|
|
#include "cogl-object-private.h"
|
|
#include "cogl-attribute.h"
|
|
#include "cogl-framebuffer.h"
|
|
#include "cogl-pipeline-private.h"
|
|
#include "cogl-boxed-value.h"
|
|
|
|
typedef enum
|
|
{
|
|
COGL_ATTRIBUTE_NAME_ID_POSITION_ARRAY,
|
|
COGL_ATTRIBUTE_NAME_ID_COLOR_ARRAY,
|
|
COGL_ATTRIBUTE_NAME_ID_TEXTURE_COORD_ARRAY,
|
|
COGL_ATTRIBUTE_NAME_ID_NORMAL_ARRAY,
|
|
COGL_ATTRIBUTE_NAME_ID_CUSTOM_ARRAY
|
|
} CoglAttributeNameID;
|
|
|
|
typedef struct _CoglAttributeNameState
|
|
{
|
|
char *name;
|
|
CoglAttributeNameID name_id;
|
|
int name_index;
|
|
CoglBool normalized_default;
|
|
int layer_number;
|
|
} CoglAttributeNameState;
|
|
|
|
struct _CoglAttribute
|
|
{
|
|
CoglObject _parent;
|
|
|
|
const CoglAttributeNameState *name_state;
|
|
CoglBool normalized;
|
|
|
|
CoglBool is_buffered;
|
|
|
|
union {
|
|
struct {
|
|
CoglAttributeBuffer *attribute_buffer;
|
|
size_t stride;
|
|
size_t offset;
|
|
int n_components;
|
|
CoglAttributeType type;
|
|
} buffered;
|
|
struct {
|
|
CoglContext *context;
|
|
CoglBoxedValue boxed;
|
|
} constant;
|
|
} d;
|
|
|
|
int immutable_ref;
|
|
};
|
|
|
|
typedef enum
|
|
{
|
|
COGL_DRAW_SKIP_JOURNAL_FLUSH = 1 << 0,
|
|
COGL_DRAW_SKIP_PIPELINE_VALIDATION = 1 << 1,
|
|
COGL_DRAW_SKIP_FRAMEBUFFER_FLUSH = 1 << 2,
|
|
COGL_DRAW_SKIP_LEGACY_STATE = 1 << 3,
|
|
/* By default the vertex attribute drawing code will assume that if
|
|
there is a color attribute array enabled then we can't determine
|
|
if the colors will be opaque so we need to enabling
|
|
blending. However when drawing from the journal we know what the
|
|
contents of the color array is so we can override this by passing
|
|
this flag. */
|
|
COGL_DRAW_COLOR_ATTRIBUTE_IS_OPAQUE = 1 << 4,
|
|
/* This forcibly disables the debug option to divert all drawing to
|
|
* wireframes */
|
|
COGL_DRAW_SKIP_DEBUG_WIREFRAME = 1 << 5
|
|
} CoglDrawFlags;
|
|
|
|
/* During CoglContext initialization we register the "cogl_color_in"
|
|
* attribute name so it gets a global name_index of 0. We need to know
|
|
* the name_index for "cogl_color_in" in
|
|
* _cogl_pipeline_flush_gl_state() */
|
|
#define COGL_ATTRIBUTE_COLOR_NAME_INDEX 0
|
|
|
|
CoglAttributeNameState *
|
|
_cogl_attribute_register_attribute_name (CoglContext *context,
|
|
const char *name);
|
|
|
|
CoglAttribute *
|
|
_cogl_attribute_immutable_ref (CoglAttribute *attribute);
|
|
|
|
void
|
|
_cogl_attribute_immutable_unref (CoglAttribute *attribute);
|
|
|
|
typedef struct
|
|
{
|
|
int unit;
|
|
CoglPipelineFlushOptions options;
|
|
uint32_t fallback_layers;
|
|
} CoglFlushLayerState;
|
|
|
|
void
|
|
_cogl_flush_attributes_state (CoglFramebuffer *framebuffer,
|
|
CoglPipeline *pipeline,
|
|
CoglDrawFlags flags,
|
|
CoglAttribute **attributes,
|
|
int n_attributes);
|
|
|
|
#endif /* __COGL_ATTRIBUTE_PRIVATE_H */
|
|
|