| Keith Whitwell | cab974c | 2000-12-26 05:09:27 +0000 | [diff] [blame^] | 1 | |
| 2 | /* $Id: api_validate.c,v 1.1 2000/12/26 05:09:27 keithw Exp $ */ |
| 3 | |
| 4 | /* |
| 5 | * Mesa 3-D graphics library |
| 6 | * Version: 3.5 |
| 7 | * |
| 8 | * Copyright (C) 1999-2000 Brian Paul All Rights Reserved. |
| 9 | * |
| 10 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 11 | * copy of this software and associated documentation files (the "Software"), |
| 12 | * to deal in the Software without restriction, including without limitation |
| 13 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 14 | * and/or sell copies of the Software, and to permit persons to whom the |
| 15 | * Software is furnished to do so, subject to the following conditions: |
| 16 | * |
| 17 | * The above copyright notice and this permission notice shall be included |
| 18 | * in all copies or substantial portions of the Software. |
| 19 | * |
| 20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| 21 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 22 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 23 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| 24 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 25 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 26 | */ |
| 27 | |
| 28 | #include "glheader.h" |
| 29 | #include "context.h" |
| 30 | #include "mtypes.h" |
| 31 | #include "api_validate.h" |
| 32 | |
| 33 | GLboolean |
| 34 | _mesa_validate_DrawElements(GLcontext *ctx, |
| 35 | GLenum mode, GLsizei count, GLenum type, |
| 36 | const GLvoid *indices) |
| 37 | { |
| 38 | ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); |
| 39 | |
| 40 | if (count <= 0) { |
| 41 | if (count < 0) |
| 42 | gl_error(ctx, GL_INVALID_VALUE, "glDrawElements(count)" ); |
| 43 | return GL_FALSE; |
| 44 | } |
| 45 | |
| 46 | if (mode < 0 || |
| 47 | mode > GL_POLYGON) { |
| 48 | gl_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)" ); |
| 49 | return GL_FALSE; |
| 50 | } |
| 51 | |
| 52 | if (type != GL_UNSIGNED_INT && |
| 53 | type != GL_UNSIGNED_BYTE && |
| 54 | type != GL_UNSIGNED_SHORT) |
| 55 | { |
| 56 | gl_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)" ); |
| 57 | return GL_FALSE; |
| 58 | } |
| 59 | |
| 60 | if (ctx->NewState) |
| 61 | gl_update_state( ctx ); |
| 62 | |
| 63 | if (!ctx->Array.Vertex.Enabled) |
| 64 | return GL_FALSE; |
| 65 | |
| 66 | return GL_TRUE; |
| 67 | } |
| 68 | |
| 69 | |
| 70 | GLboolean |
| 71 | _mesa_validate_DrawRangeElements(GLcontext *ctx, GLenum mode, |
| 72 | GLuint start, GLuint end, |
| 73 | GLsizei count, GLenum type, |
| 74 | const GLvoid *indices) |
| 75 | { |
| 76 | ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); |
| 77 | |
| 78 | if (count <= 0) { |
| 79 | if (count < 0) |
| 80 | gl_error(ctx, GL_INVALID_VALUE, "glDrawElements(count)" ); |
| 81 | return GL_FALSE; |
| 82 | } |
| 83 | |
| 84 | if (mode < 0 || mode > GL_POLYGON) { |
| 85 | gl_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)" ); |
| 86 | return GL_FALSE; |
| 87 | } |
| 88 | |
| 89 | if (end < start) { |
| 90 | gl_error(ctx, GL_INVALID_VALUE, "glDrawRangeElements(end<start)"); |
| 91 | return GL_FALSE; |
| 92 | } |
| 93 | |
| 94 | if (type != GL_UNSIGNED_INT && |
| 95 | type != GL_UNSIGNED_BYTE && |
| 96 | type != GL_UNSIGNED_SHORT) |
| 97 | { |
| 98 | gl_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)" ); |
| 99 | return GL_FALSE; |
| 100 | } |
| 101 | |
| 102 | if (ctx->NewState) |
| 103 | gl_update_state( ctx ); |
| 104 | |
| 105 | if (!ctx->Array.Vertex.Enabled) |
| 106 | return GL_FALSE; |
| 107 | |
| 108 | return GL_TRUE; |
| 109 | } |
| 110 | |
| 111 | |
| 112 | |
| 113 | GLboolean |
| 114 | _mesa_validate_DrawArrays(GLcontext *ctx, |
| 115 | GLenum mode, GLint start, GLsizei count) |
| 116 | { |
| 117 | ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); |
| 118 | |
| 119 | if (count<0) { |
| 120 | gl_error(ctx, GL_INVALID_VALUE, "glDrawArrays(count)" ); |
| 121 | return GL_FALSE; |
| 122 | } |
| 123 | |
| 124 | if (mode < 0 || mode > GL_POLYGON) { |
| 125 | gl_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)" ); |
| 126 | return GL_FALSE; |
| 127 | } |
| 128 | |
| 129 | if (ctx->NewState) |
| 130 | gl_update_state( ctx ); |
| 131 | |
| 132 | if (!ctx->Array.Vertex.Enabled) |
| 133 | return GL_FALSE; |
| 134 | |
| 135 | return GL_TRUE; |
| 136 | } |
| 137 | |