Gawain: add immRect utility functions (replaces legacy glRect)
Caller is responsible for setting up vertex format, binding a shader program, and setting the color *before* calling immRect.
This commit is contained in:
parent
6371f8ff8a
commit
587a16352a
|
@ -72,6 +72,8 @@ set(SRC
|
|||
gawain/element.h
|
||||
gawain/immediate.c
|
||||
gawain/immediate.h
|
||||
gawain/imm_util.c
|
||||
gawain/imm_util.h
|
||||
gawain/vertex_buffer.c
|
||||
gawain/vertex_buffer.h
|
||||
gawain/vertex_format.c
|
||||
|
|
|
@ -31,6 +31,7 @@
|
|||
#pragma once
|
||||
|
||||
#include "gawain/immediate.h"
|
||||
#include "gawain/imm_util.h"
|
||||
#include "GPU_shader.h"
|
||||
|
||||
/* Extend immBindProgram to use Blender’s library of built-in shader programs.
|
||||
|
|
|
@ -0,0 +1,46 @@
|
|||
|
||||
// Gawain immediate mode drawing utilities
|
||||
//
|
||||
// This code is part of the Gawain library, with modifications
|
||||
// specific to integration with Blender.
|
||||
//
|
||||
// Copyright 2016 Mike Erwin
|
||||
//
|
||||
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of
|
||||
// the MPL was not distributed with this file, You can obtain one at https://mozilla.org/MPL/2.0/.
|
||||
|
||||
#include "imm_util.h"
|
||||
#include "immediate.h"
|
||||
|
||||
|
||||
void immRectf(unsigned pos, float x1, float y1, float x2, float y2)
|
||||
{
|
||||
immBegin(GL_TRIANGLE_FAN, 4);
|
||||
immVertex2f(pos, x1, y1);
|
||||
immVertex2f(pos, x2, y1);
|
||||
immVertex2f(pos, x2, y2);
|
||||
immVertex2f(pos, x1, y2);
|
||||
immEnd();
|
||||
}
|
||||
|
||||
void immRecti(unsigned pos, int x1, int y1, int x2, int y2)
|
||||
{
|
||||
immBegin(GL_TRIANGLE_FAN, 4);
|
||||
immVertex2i(pos, x1, y1);
|
||||
immVertex2i(pos, x2, y1);
|
||||
immVertex2i(pos, x2, y2);
|
||||
immVertex2i(pos, x1, y2);
|
||||
immEnd();
|
||||
}
|
||||
|
||||
#if 0 // more complete version in case we want that
|
||||
void immRecti_complete(int x1, int y1, int x2, int y2, const float color[4])
|
||||
{
|
||||
VertexFormat *format = immVertexFormat();
|
||||
unsigned pos = add_attrib(format, "pos", GL_INT, 2, CONVERT_INT_TO_FLOAT);
|
||||
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
|
||||
immUniformColor4fv(color);
|
||||
immRecti(pos, x1, y1, x2, y2);
|
||||
immUnbindProgram();
|
||||
}
|
||||
#endif
|
|
@ -0,0 +1,18 @@
|
|||
|
||||
// Gawain immediate mode drawing utilities
|
||||
//
|
||||
// This code is part of the Gawain library, with modifications
|
||||
// specific to integration with Blender.
|
||||
//
|
||||
// Copyright 2016 Mike Erwin
|
||||
//
|
||||
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of
|
||||
// the MPL was not distributed with this file, You can obtain one at https://mozilla.org/MPL/2.0/.
|
||||
|
||||
#pragma once
|
||||
|
||||
|
||||
// Draw 2D rectangles (replaces glRect functions)
|
||||
// caller is reponsible for vertex format & shader
|
||||
void immRectf(unsigned pos, float x1, float y1, float x2, float y2);
|
||||
void immRecti(unsigned pos, int x1, int y1, int x2, int y2);
|
Loading…
Reference in New Issue