| 1 | /* $Id: alphabuf.h,v 1.1 2000-02-29 00:48:24 sandervl Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * Mesa 3-D graphics library
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| 5 | * Version: 3.1
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| 6 | *
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| 7 | * Copyright (C) 1999 Brian Paul All Rights Reserved.
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| 8 | *
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| 9 | * Permission is hereby granted, free of charge, to any person obtaining a
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| 10 | * copy of this software and associated documentation files (the "Software"),
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| 11 | * to deal in the Software without restriction, including without limitation
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| 12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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| 13 | * and/or sell copies of the Software, and to permit persons to whom the
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| 14 | * Software is furnished to do so, subject to the following conditions:
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| 15 | *
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| 16 | * The above copyright notice and this permission notice shall be included
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| 17 | * in all copies or substantial portions of the Software.
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| 18 | *
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| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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| 20 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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| 22 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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| 23 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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| 24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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| 25 | */
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| 26 |
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| 27 |
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| 28 |
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| 29 |
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| 30 |
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| 31 |
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| 32 | #ifndef ALPHABUF_H
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| 33 | #define ALPHABUF_H
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| 34 |
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| 35 |
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| 36 | #include "types.h"
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| 37 |
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| 38 |
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| 39 | extern void gl_alloc_alpha_buffers( GLcontext *ctx );
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| 40 |
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| 41 |
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| 42 | extern void gl_clear_alpha_buffers( GLcontext *ctx );
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| 43 |
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| 44 |
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| 45 | extern void gl_write_alpha_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
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| 46 | CONST GLubyte rgba[][4], const GLubyte mask[] );
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| 47 |
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| 48 |
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| 49 | extern void gl_write_mono_alpha_span( GLcontext *ctx,
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| 50 | GLuint n, GLint x, GLint y,
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| 51 | GLubyte alpha, const GLubyte mask[] );
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| 52 |
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| 53 |
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| 54 |
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| 55 | extern void gl_write_alpha_pixels( GLcontext* ctx,
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| 56 | GLuint n, const GLint x[], const GLint y[],
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| 57 | CONST GLubyte rgba[][4],
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| 58 | const GLubyte mask[] );
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| 59 |
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| 60 |
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| 61 | extern void gl_write_mono_alpha_pixels( GLcontext* ctx,
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| 62 | GLuint n, const GLint x[],
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| 63 | const GLint y[], GLubyte alpha,
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| 64 | const GLubyte mask[] );
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| 65 |
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| 66 |
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| 67 | extern void gl_read_alpha_span( GLcontext* ctx,
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| 68 | GLuint n, GLint x, GLint y,
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| 69 | GLubyte rgba[][4] );
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| 70 |
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| 71 |
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| 72 | extern void gl_read_alpha_pixels( GLcontext* ctx,
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| 73 | GLuint n, const GLint x[], const GLint y[],
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| 74 | GLubyte rgba[][4], const GLubyte mask[] );
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| 75 |
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| 76 |
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| 77 | #endif
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| 78 |
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