feedback.c revision 24d311c13339978a37885e88a49a990903652339
1afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/* 2afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Mesa 3-D graphics library 3559aec47015b741e045d57362f7732b3a04f9450Brian Paul * Version: 7.5 45e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen * 5559aec47015b741e045d57362f7732b3a04f9450Brian Paul * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. 6559aec47015b741e045d57362f7732b3a04f9450Brian Paul * Copyright (C) 2009 VMware, Inc. All Rights Reserved. 75e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen * 8afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Permission is hereby granted, free of charge, to any person obtaining a 9afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * copy of this software and associated documentation files (the "Software"), 10afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * to deal in the Software without restriction, including without limitation 11afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * the rights to use, copy, modify, merge, publish, distribute, sublicense, 12afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * and/or sell copies of the Software, and to permit persons to whom the 13afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Software is furnished to do so, subject to the following conditions: 145e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen * 15afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * The above copyright notice and this permission notice shall be included 16afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * in all copies or substantial portions of the Software. 175e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen * 18afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 22afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 23afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */ 25afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 26559aec47015b741e045d57362f7732b3a04f9450Brian Paul/** 27559aec47015b741e045d57362f7732b3a04f9450Brian Paul * \file feedback.c 28559aec47015b741e045d57362f7732b3a04f9450Brian Paul * Selection and feedback modes functions. 29559aec47015b741e045d57362f7732b3a04f9450Brian Paul */ 30559aec47015b741e045d57362f7732b3a04f9450Brian Paul 31afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 32fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul#include "glheader.h" 33c893a015d8a50a38cd3f727d99835e7e7e2ccea9Brian Paul#include "colormac.h" 34afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#include "context.h" 35afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#include "enums.h" 36afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#include "feedback.h" 37afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#include "macros.h" 385e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen#include "mtypes.h" 392cf44390d1e819f23e1d7ceb3199276c9148c647Chia-I Wu#include "main/dispatch.h" 40afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 41afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 42301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wu#if FEATURE_feedback 436dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell 44afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 45afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#define FB_3D 0x01 46afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#define FB_4D 0x02 4724d311c13339978a37885e88a49a990903652339Ian Romanick#define FB_COLOR 0x04 4824d311c13339978a37885e88a49a990903652339Ian Romanick#define FB_TEXTURE 0X08 49afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 50afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 51afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 52301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wustatic void GLAPIENTRY 53fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_FeedbackBuffer( GLsizei size, GLenum type, GLfloat *buffer ) 54afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 55fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul GET_CURRENT_CONTEXT(ctx); 5622144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes ASSERT_OUTSIDE_BEGIN_END(ctx); 57afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 58afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg if (ctx->RenderMode==GL_FEEDBACK) { 5908836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_error( ctx, GL_INVALID_OPERATION, "glFeedbackBuffer" ); 60afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg return; 61afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 62afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg if (size<0) { 6308836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_error( ctx, GL_INVALID_VALUE, "glFeedbackBuffer(size<0)" ); 64afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg return; 65afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 66afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg if (!buffer) { 6708836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_error( ctx, GL_INVALID_VALUE, "glFeedbackBuffer(buffer==NULL)" ); 6822144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes ctx->Feedback.BufferSize = 0; 69afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg return; 70afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 71afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 72afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg switch (type) { 73afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg case GL_2D: 74cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell ctx->Feedback._Mask = 0; 75afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg break; 76afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg case GL_3D: 77cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell ctx->Feedback._Mask = FB_3D; 78afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg break; 79afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg case GL_3D_COLOR: 8022a96f305898b5d1aa26809c7156a01686eb9bf0Ian Romanick ctx->Feedback._Mask = (FB_3D | FB_COLOR); 81afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg break; 82afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg case GL_3D_COLOR_TEXTURE: 8322a96f305898b5d1aa26809c7156a01686eb9bf0Ian Romanick ctx->Feedback._Mask = (FB_3D | FB_COLOR | FB_TEXTURE); 84afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg break; 85afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg case GL_4D_COLOR_TEXTURE: 8622a96f305898b5d1aa26809c7156a01686eb9bf0Ian Romanick ctx->Feedback._Mask = (FB_3D | FB_4D | FB_COLOR | FB_TEXTURE); 87afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg break; 88afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg default: 8908836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_error( ctx, GL_INVALID_ENUM, "glFeedbackBuffer" ); 90cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return; 91afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 92afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 93cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell FLUSH_VERTICES(ctx, _NEW_RENDERMODE); /* Always flush */ 94cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell ctx->Feedback.Type = type; 95afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Feedback.BufferSize = size; 96afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Feedback.Buffer = buffer; 97cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell ctx->Feedback.Count = 0; /* Becaues of this. */ 98afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 99afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 100afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 101301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wustatic void GLAPIENTRY 102fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_PassThrough( GLfloat token ) 103afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 104fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul GET_CURRENT_CONTEXT(ctx); 105cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell ASSERT_OUTSIDE_BEGIN_END(ctx); 106afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 107afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg if (ctx->RenderMode==GL_FEEDBACK) { 108cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell FLUSH_VERTICES(ctx, 0); 109bf8a187f71bd667a0dc0f70164a897d8e62361a8Brian Paul _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_PASS_THROUGH_TOKEN ); 110bf8a187f71bd667a0dc0f70164a897d8e62361a8Brian Paul _mesa_feedback_token( ctx, token ); 111afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 112afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 113afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 114afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 115559aec47015b741e045d57362f7732b3a04f9450Brian Paul/** 116afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Put a vertex into the feedback buffer. 117afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */ 118559aec47015b741e045d57362f7732b3a04f9450Brian Paulvoid 119559aec47015b741e045d57362f7732b3a04f9450Brian Paul_mesa_feedback_vertex(GLcontext *ctx, 120559aec47015b741e045d57362f7732b3a04f9450Brian Paul const GLfloat win[4], 121559aec47015b741e045d57362f7732b3a04f9450Brian Paul const GLfloat color[4], 122559aec47015b741e045d57362f7732b3a04f9450Brian Paul const GLfloat texcoord[4]) 123afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 124bf8a187f71bd667a0dc0f70164a897d8e62361a8Brian Paul _mesa_feedback_token( ctx, win[0] ); 125bf8a187f71bd667a0dc0f70164a897d8e62361a8Brian Paul _mesa_feedback_token( ctx, win[1] ); 126cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (ctx->Feedback._Mask & FB_3D) { 127bf8a187f71bd667a0dc0f70164a897d8e62361a8Brian Paul _mesa_feedback_token( ctx, win[2] ); 128afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 129cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (ctx->Feedback._Mask & FB_4D) { 130bf8a187f71bd667a0dc0f70164a897d8e62361a8Brian Paul _mesa_feedback_token( ctx, win[3] ); 131afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 132cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (ctx->Feedback._Mask & FB_COLOR) { 133bf8a187f71bd667a0dc0f70164a897d8e62361a8Brian Paul _mesa_feedback_token( ctx, color[0] ); 134bf8a187f71bd667a0dc0f70164a897d8e62361a8Brian Paul _mesa_feedback_token( ctx, color[1] ); 135bf8a187f71bd667a0dc0f70164a897d8e62361a8Brian Paul _mesa_feedback_token( ctx, color[2] ); 136bf8a187f71bd667a0dc0f70164a897d8e62361a8Brian Paul _mesa_feedback_token( ctx, color[3] ); 137afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 138cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (ctx->Feedback._Mask & FB_TEXTURE) { 139bf8a187f71bd667a0dc0f70164a897d8e62361a8Brian Paul _mesa_feedback_token( ctx, texcoord[0] ); 140bf8a187f71bd667a0dc0f70164a897d8e62361a8Brian Paul _mesa_feedback_token( ctx, texcoord[1] ); 141bf8a187f71bd667a0dc0f70164a897d8e62361a8Brian Paul _mesa_feedback_token( ctx, texcoord[2] ); 142bf8a187f71bd667a0dc0f70164a897d8e62361a8Brian Paul _mesa_feedback_token( ctx, texcoord[3] ); 143afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 144afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 145afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 146bf8a187f71bd667a0dc0f70164a897d8e62361a8Brian Paul 1476dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/**********************************************************************/ 1486dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/** \name Selection */ 1496dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/*@{*/ 1506dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell 1516dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/** 1526dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Establish a buffer for selection mode values. 1536dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 1546dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * \param size buffer size. 1556dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * \param buffer buffer. 1566dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 1576dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * \sa glSelectBuffer(). 1586dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 1596dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * \note this function can't be put in a display list. 1606dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 1616dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Verifies we're not in selection mode, flushes the vertices and initialize 1626dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * the fields in __GLcontextRec::Select with the given buffer. 163afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */ 164301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wustatic void GLAPIENTRY 165fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_SelectBuffer( GLsizei size, GLuint *buffer ) 166afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 167fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul GET_CURRENT_CONTEXT(ctx); 168cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell ASSERT_OUTSIDE_BEGIN_END(ctx); 169cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 170afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg if (ctx->RenderMode==GL_SELECT) { 17108836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_error( ctx, GL_INVALID_OPERATION, "glSelectBuffer" ); 172cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell return; /* KW: added return */ 173afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 174cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 1756dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell FLUSH_VERTICES(ctx, _NEW_RENDERMODE); 176afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.Buffer = buffer; 177afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.BufferSize = size; 178afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.BufferCount = 0; 179afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.HitFlag = GL_FALSE; 180afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.HitMinZ = 1.0; 181afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.HitMaxZ = 0.0; 182afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 183afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 184afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 1856dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/** 1866dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Write a value of a record into the selection buffer. 1876dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 1881eee1bac1f6d911e6124daafc9b9291666d91cefVinson Lee * \param ctx GL context. 1891eee1bac1f6d911e6124daafc9b9291666d91cefVinson Lee * \param value value. 1906dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 1916dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Verifies there is free space in the buffer to write the value and 1926dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * increments the pointer. 1936dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell */ 1948bf25a17d2f8f888e8e8a4f7a2c6d68c6c06f6e8Brian Paulstatic INLINE void 1958bf25a17d2f8f888e8e8a4f7a2c6d68c6c06f6e8Brian Paulwrite_record(GLcontext *ctx, GLuint value) 1968bf25a17d2f8f888e8e8a4f7a2c6d68c6c06f6e8Brian Paul{ 1978bf25a17d2f8f888e8e8a4f7a2c6d68c6c06f6e8Brian Paul if (ctx->Select.BufferCount < ctx->Select.BufferSize) { 1988bf25a17d2f8f888e8e8a4f7a2c6d68c6c06f6e8Brian Paul ctx->Select.Buffer[ctx->Select.BufferCount] = value; 1998bf25a17d2f8f888e8e8a4f7a2c6d68c6c06f6e8Brian Paul } 2008bf25a17d2f8f888e8e8a4f7a2c6d68c6c06f6e8Brian Paul ctx->Select.BufferCount++; 2018bf25a17d2f8f888e8e8a4f7a2c6d68c6c06f6e8Brian Paul} 202afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 203afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 2046dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/** 2056dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Update the hit flag and the maximum and minimum depth values. 2066dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 2076dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * \param ctx GL context. 2086dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * \param z depth. 2096dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 2106dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Sets gl_selection::HitFlag and updates gl_selection::HitMinZ and 2116dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * gl_selection::HitMaxZ. 2126dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell */ 213559aec47015b741e045d57362f7732b3a04f9450Brian Paulvoid 214559aec47015b741e045d57362f7732b3a04f9450Brian Paul_mesa_update_hitflag(GLcontext *ctx, GLfloat z) 215afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 216afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.HitFlag = GL_TRUE; 217afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg if (z < ctx->Select.HitMinZ) { 218afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.HitMinZ = z; 219afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 220afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg if (z > ctx->Select.HitMaxZ) { 221afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.HitMaxZ = z; 222afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 223afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 224afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 225afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 2266dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/** 2276dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Write the hit record. 2286dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 2296dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * \param ctx GL context. 2306dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 2316dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Write the hit record, i.e., the number of names in the stack, the minimum and 2326dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * maximum depth values and the number of names in the name stack at the time 2336dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * of the event. Resets the hit flag. 2346dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 2356dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * \sa gl_selection. 2366dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell */ 237559aec47015b741e045d57362f7732b3a04f9450Brian Paulstatic void 238559aec47015b741e045d57362f7732b3a04f9450Brian Paulwrite_hit_record(GLcontext *ctx) 239afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 240afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg GLuint i; 241afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg GLuint zmin, zmax, zscale = (~0u); 242afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 243afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg /* HitMinZ and HitMaxZ are in [0,1]. Multiply these values by */ 244afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg /* 2^32-1 and round to nearest unsigned integer. */ 245afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 246afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg assert( ctx != NULL ); /* this line magically fixes a SunOS 5.x/gcc bug */ 247afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg zmin = (GLuint) ((GLfloat) zscale * ctx->Select.HitMinZ); 248afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg zmax = (GLuint) ((GLfloat) zscale * ctx->Select.HitMaxZ); 249afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 2508bf25a17d2f8f888e8e8a4f7a2c6d68c6c06f6e8Brian Paul write_record( ctx, ctx->Select.NameStackDepth ); 2518bf25a17d2f8f888e8e8a4f7a2c6d68c6c06f6e8Brian Paul write_record( ctx, zmin ); 2528bf25a17d2f8f888e8e8a4f7a2c6d68c6c06f6e8Brian Paul write_record( ctx, zmax ); 2533be135f0000515f677c3ca927034caa2fc669e2eBrian Paul for (i = 0; i < ctx->Select.NameStackDepth; i++) { 2548bf25a17d2f8f888e8e8a4f7a2c6d68c6c06f6e8Brian Paul write_record( ctx, ctx->Select.NameStack[i] ); 255afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 256afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 257afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.Hits++; 258afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.HitFlag = GL_FALSE; 259afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.HitMinZ = 1.0; 260afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.HitMaxZ = -1.0; 261afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 262afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 263afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 2646dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/** 2656dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Initialize the name stack. 2666dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 2676dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Verifies we are in select mode and resets the name stack depth and resets 2686dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * the hit record data in gl_selection. Marks new render mode in 2696dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * __GLcontextRec::NewState. 2706dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell */ 271301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wustatic void GLAPIENTRY 272fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_InitNames( void ) 273afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 274fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul GET_CURRENT_CONTEXT(ctx); 275cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 276cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 277afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg /* Record the hit before the HitFlag is wiped out again. */ 2783be135f0000515f677c3ca927034caa2fc669e2eBrian Paul if (ctx->RenderMode == GL_SELECT) { 279afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg if (ctx->Select.HitFlag) { 280afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg write_hit_record( ctx ); 281afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 282afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 283afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.NameStackDepth = 0; 284afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.HitFlag = GL_FALSE; 285afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.HitMinZ = 1.0; 286afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.HitMaxZ = 0.0; 287cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell ctx->NewState |= _NEW_RENDERMODE; 288afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 289afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 290afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 2916dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/** 2926dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Load the top-most name of the name stack. 2936dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 2946dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * \param name name. 2956dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 2966dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Verifies we are in selection mode and that the name stack is not empty. 2976dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Flushes vertices. If there is a hit flag writes it (via write_hit_record()), 2986dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * and replace the top-most name in the stack. 2996dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 3006dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * sa __GLcontextRec::Select. 3016dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell */ 302301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wustatic void GLAPIENTRY 303fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_LoadName( GLuint name ) 304afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 305fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul GET_CURRENT_CONTEXT(ctx); 306cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell ASSERT_OUTSIDE_BEGIN_END(ctx); 307cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 3083be135f0000515f677c3ca927034caa2fc669e2eBrian Paul if (ctx->RenderMode != GL_SELECT) { 309afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg return; 310afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 3113be135f0000515f677c3ca927034caa2fc669e2eBrian Paul if (ctx->Select.NameStackDepth == 0) { 31208836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_error( ctx, GL_INVALID_OPERATION, "glLoadName" ); 313afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg return; 314afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 315cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 316cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell FLUSH_VERTICES(ctx, _NEW_RENDERMODE); 317cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 318afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg if (ctx->Select.HitFlag) { 319afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg write_hit_record( ctx ); 320afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 3213be135f0000515f677c3ca927034caa2fc669e2eBrian Paul if (ctx->Select.NameStackDepth < MAX_NAME_STACK_DEPTH) { 322afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.NameStack[ctx->Select.NameStackDepth-1] = name; 323afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 324afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg else { 325afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.NameStack[MAX_NAME_STACK_DEPTH-1] = name; 326afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 327afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 328afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 329afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 3306dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/** 3316dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Push a name into the name stack. 3326dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 3336dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * \param name name. 3346dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 3356dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Verifies we are in selection mode and that the name stack is not full. 3366dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Flushes vertices. If there is a hit flag writes it (via write_hit_record()), 3376dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * and adds the name to the top of the name stack. 3386dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 3396dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * sa __GLcontextRec::Select. 3406dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell */ 341301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wustatic void GLAPIENTRY 342fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_PushName( GLuint name ) 343afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 344fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul GET_CURRENT_CONTEXT(ctx); 345cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell ASSERT_OUTSIDE_BEGIN_END(ctx); 346cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 3473be135f0000515f677c3ca927034caa2fc669e2eBrian Paul if (ctx->RenderMode != GL_SELECT) { 348afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg return; 349afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 350cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 351cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell FLUSH_VERTICES(ctx, _NEW_RENDERMODE); 352afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg if (ctx->Select.HitFlag) { 353afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg write_hit_record( ctx ); 354afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 355cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (ctx->Select.NameStackDepth >= MAX_NAME_STACK_DEPTH) { 35608836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushName" ); 357afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 358cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else 359cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell ctx->Select.NameStack[ctx->Select.NameStackDepth++] = name; 360afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 361afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 362afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 3636dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/** 3646dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Pop a name into the name stack. 3656dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 3666dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Verifies we are in selection mode and that the name stack is not empty. 3676dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Flushes vertices. If there is a hit flag writes it (via write_hit_record()), 3686dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * and removes top-most name in the name stack. 3696dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 3706dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * sa __GLcontextRec::Select. 3716dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell */ 372301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wustatic void GLAPIENTRY 373fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_PopName( void ) 374afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 375fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul GET_CURRENT_CONTEXT(ctx); 376cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell ASSERT_OUTSIDE_BEGIN_END(ctx); 377cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 3783be135f0000515f677c3ca927034caa2fc669e2eBrian Paul if (ctx->RenderMode != GL_SELECT) { 379afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg return; 380afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 381cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell 382cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell FLUSH_VERTICES(ctx, _NEW_RENDERMODE); 383afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg if (ctx->Select.HitFlag) { 384afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg write_hit_record( ctx ); 385afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 386cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell if (ctx->Select.NameStackDepth == 0) { 38708836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopName" ); 388afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 389cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell else 390cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell ctx->Select.NameStackDepth--; 391afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 392afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 3936dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/*@}*/ 394afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 395afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 396afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/**********************************************************************/ 3976dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/** \name Render Mode */ 3986dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/*@{*/ 399afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 4006dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/** 4016dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Set rasterization mode. 4026dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 4036dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * \param mode rasterization mode. 4046dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 4056dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * \note this function can't be put in a display list. 4066dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 4076dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * \sa glRenderMode(). 4086dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * 4096dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Flushes the vertices and do the necessary cleanup according to the previous 4106dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * rasterization mode, such as writing the hit record or resent the select 4116dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * buffer index when exiting the select mode. Updates 4126dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * __GLcontextRec::RenderMode and notifies the driver via the 4136dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * dd_function_table::RenderMode callback. 414afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */ 415301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wustatic GLint GLAPIENTRY 416fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul_mesa_RenderMode( GLenum mode ) 417afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 418fbd8f212c3866ec98c1d8c9d3db3ddb7e7c479a5Brian Paul GET_CURRENT_CONTEXT(ctx); 419afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg GLint result; 420cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0); 421afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 422afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg if (MESA_VERBOSE & VERBOSE_API) 4239d47f3d6b8e8054602a637fad70d4769427df8b4Brian Paul _mesa_debug(ctx, "glRenderMode %s\n", _mesa_lookup_enum_by_nr(mode)); 424afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 425cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell FLUSH_VERTICES(ctx, _NEW_RENDERMODE); 426afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 427afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg switch (ctx->RenderMode) { 428afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg case GL_RENDER: 429afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg result = 0; 430afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg break; 431afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg case GL_SELECT: 432afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg if (ctx->Select.HitFlag) { 433afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg write_hit_record( ctx ); 434afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 435afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg if (ctx->Select.BufferCount > ctx->Select.BufferSize) { 436afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg /* overflow */ 437afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#ifdef DEBUG 438b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul _mesa_warning(ctx, "Feedback buffer overflow"); 439afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#endif 440afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg result = -1; 441afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 442afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg else { 443afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg result = ctx->Select.Hits; 444afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 445afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.BufferCount = 0; 446afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.Hits = 0; 447afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Select.NameStackDepth = 0; 448afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg break; 4496dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell#if _HAVE_FULL_GL 450afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg case GL_FEEDBACK: 451afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg if (ctx->Feedback.Count > ctx->Feedback.BufferSize) { 452afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg /* overflow */ 453afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg result = -1; 454afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 455afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg else { 456afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg result = ctx->Feedback.Count; 457afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 458afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->Feedback.Count = 0; 459afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg break; 4606dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell#endif 461afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg default: 46208836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_error( ctx, GL_INVALID_ENUM, "glRenderMode" ); 463afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg return 0; 464afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 465afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 466afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg switch (mode) { 467afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg case GL_RENDER: 468afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg break; 469afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg case GL_SELECT: 470afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg if (ctx->Select.BufferSize==0) { 471afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg /* haven't called glSelectBuffer yet */ 47208836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_error( ctx, GL_INVALID_OPERATION, "glRenderMode" ); 473afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 474afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg break; 4756dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell#if _HAVE_FULL_GL 476afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg case GL_FEEDBACK: 477afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg if (ctx->Feedback.BufferSize==0) { 478afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg /* haven't called glFeedbackBuffer yet */ 47908836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_error( ctx, GL_INVALID_OPERATION, "glRenderMode" ); 480afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 481afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg break; 4826dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell#endif 483afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg default: 48408836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_error( ctx, GL_INVALID_ENUM, "glRenderMode" ); 485afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg return 0; 486afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 487afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 488afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg ctx->RenderMode = mode; 48922144ab7552f0799bcfca506bf4ffa7f70a06649Gareth Hughes if (ctx->Driver.RenderMode) 490b980b2eeb62dc48101a7481d02d196c80b9da397Keith Whitwell ctx->Driver.RenderMode( ctx, mode ); 491b980b2eeb62dc48101a7481d02d196c80b9da397Keith Whitwell 492afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg return result; 493afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 4946dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell 4956dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/*@}*/ 4966dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell 4976dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell 498301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wuvoid 499301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wu_mesa_init_feedback_dispatch(struct _glapi_table *disp) 500301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wu{ 501301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wu SET_InitNames(disp, _mesa_InitNames); 502301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wu SET_FeedbackBuffer(disp, _mesa_FeedbackBuffer); 503301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wu SET_LoadName(disp, _mesa_LoadName); 504301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wu SET_PassThrough(disp, _mesa_PassThrough); 505301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wu SET_PopName(disp, _mesa_PopName); 506301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wu SET_PushName(disp, _mesa_PushName); 507301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wu SET_SelectBuffer(disp, _mesa_SelectBuffer); 508301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wu SET_RenderMode(disp, _mesa_RenderMode); 509301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wu} 510301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wu 511301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wu 512301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wu#endif /* FEATURE_feedback */ 513301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wu 514301a510092859d2e214d64f4ac2ebe03d591c64bChia-I Wu 5156dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/**********************************************************************/ 5166dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/** \name Initialization */ 5176dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/*@{*/ 5186dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell 5196dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/** 5206dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell * Initialize context feedback data. 5216dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell */ 5226dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwellvoid _mesa_init_feedback( GLcontext * ctx ) 5236dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell{ 5246dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell /* Feedback */ 5256dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell ctx->Feedback.Type = GL_2D; /* TODO: verify */ 5266dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell ctx->Feedback.Buffer = NULL; 5276dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell ctx->Feedback.BufferSize = 0; 5286dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell ctx->Feedback.Count = 0; 5296dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell 5306dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell /* Selection/picking */ 5316dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell ctx->Select.Buffer = NULL; 5326dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell ctx->Select.BufferSize = 0; 5336dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell ctx->Select.BufferCount = 0; 5346dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell ctx->Select.Hits = 0; 5356dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell ctx->Select.NameStackDepth = 0; 5366dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell 5376dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell /* Miscellaneous */ 5386dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell ctx->RenderMode = GL_RENDER; 5396dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell} 5406dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell 5416dc85575000127630489b407c50a4b3ea87c9acbKeith Whitwell/*@}*/ 542