649b0ccac8
This makes wide line supported on MacOS and other implementation that does not support wide line by default. This workaround works for all Line types but only if using one of the 5 default shaders. The workaround is completely isolated and invisible to the outside. It has no side effect. Note: This does not affect the GPUBatch drawing.
78 lines
2.3 KiB
C++
78 lines
2.3 KiB
C++
/*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
* The Original Code is Copyright (C) 2016 by Mike Erwin.
|
|
* All rights reserved.
|
|
*/
|
|
|
|
/** \file
|
|
* \ingroup gpu
|
|
*
|
|
* Mimics old style opengl immediate mode drawing.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "GPU_batch.h"
|
|
#include "GPU_primitive.h"
|
|
#include "GPU_shader.h"
|
|
#include "GPU_vertex_format.h"
|
|
|
|
namespace blender::gpu {
|
|
|
|
class Immediate {
|
|
public:
|
|
/** Pointer to the mapped buffer data for the currect vertex. */
|
|
uchar *vertex_data = NULL;
|
|
/** Current vertex index. */
|
|
uint vertex_idx = 0;
|
|
/** Length of the buffer in vertices. */
|
|
uint vertex_len = 0;
|
|
/** Which attributes of current vertex have not been given values? */
|
|
uint16_t unassigned_attr_bits = 0;
|
|
/** Attributes that needs to be set. One bit per attribute. */
|
|
uint16_t enabled_attr_bits = 0;
|
|
|
|
/** Current draw call specification. */
|
|
GPUPrimType prim_type = GPU_PRIM_NONE;
|
|
GPUVertFormat vertex_format;
|
|
GPUShader *shader = NULL;
|
|
/** Enforce strict vertex count (disabled when using immBeginAtMost). */
|
|
bool strict_vertex_len = true;
|
|
|
|
/** Batch in construction when using immBeginBatch. */
|
|
GPUBatch *batch = NULL;
|
|
|
|
/** Wide Line workaround. */
|
|
|
|
/** Previously bound shader to restore after drawing. */
|
|
GPUShader *prev_shader = NULL;
|
|
/** Builtin shader index. Used to test if the workaround can be done. */
|
|
eGPUBuiltinShader builtin_shader_bound = GPU_SHADER_TEXT;
|
|
/** Uniform color: Kept here to update the wideline shader just before immBegin. */
|
|
float uniform_color[4];
|
|
|
|
public:
|
|
Immediate(){};
|
|
virtual ~Immediate(){};
|
|
|
|
virtual uchar *begin(void) = 0;
|
|
virtual void end(void) = 0;
|
|
};
|
|
|
|
} // namespace blender::gpu
|
|
|
|
void immActivate(void);
|
|
void immDeactivate(void); |