pack_regcombiner.c revision e0e0c19eefceaf5d4ec40f9466b58a771f50e799
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync/* Copyright (c) 2001, Stanford University
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync * All rights reserved
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync *
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync * See the file LICENSE.txt for information on redistributing this software.
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync */
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync#include "packer.h"
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync#include "cr_opcodes.h"
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsyncstatic GLboolean __handleCombinerParameterData( GLenum pname, const GLfloat *params, GLenum extended_opcode )
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync{
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync GET_PACKER_CONTEXT(pc);
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync unsigned int params_length = 0;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync unsigned int packet_length = sizeof( int ) + sizeof( extended_opcode ) + sizeof( pname );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync unsigned char *data_ptr;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync switch( pname )
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync {
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync case GL_CONSTANT_COLOR0_NV:
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync case GL_CONSTANT_COLOR1_NV:
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync params_length = 4 * sizeof( *params );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync break;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync case GL_NUM_GENERAL_COMBINERS_NV:
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync case GL_COLOR_SUM_CLAMP_NV:
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync params_length = sizeof( *params );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync break;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync default:
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync __PackError( __LINE__, __FILE__, GL_INVALID_ENUM,
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync "crPackCombinerParameter(bad pname)" );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync CRASSERT(0);
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync return GL_FALSE;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync }
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync packet_length += params_length;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync GET_BUFFERED_POINTER(pc, packet_length );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync WRITE_DATA( 0, int, packet_length );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync WRITE_DATA( sizeof( int ) + 0, GLenum, extended_opcode );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync WRITE_DATA( sizeof( int ) + 4, GLenum, pname );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync WRITE_DATA( sizeof( int ) + 8, GLfloat, params[0] );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync if (params_length > sizeof( *params ))
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync {
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync WRITE_DATA( sizeof( int ) + 12, GLfloat, params[1] );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync WRITE_DATA( sizeof( int ) + 16, GLfloat, params[2] );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync WRITE_DATA( sizeof( int ) + 20, GLfloat, params[3] );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync CRASSERT(packet_length == sizeof(int) + 20 + 4);
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync }
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync return GL_TRUE;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync}
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsyncvoid PACK_APIENTRY crPackCombinerParameterfvNV( GLenum pname, const GLfloat *params )
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync{
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync GET_PACKER_CONTEXT(pc);
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync if (__handleCombinerParameterData( pname, params, CR_COMBINERPARAMETERFVNV_EXTEND_OPCODE ))
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync WRITE_OPCODE( pc, CR_EXTEND_OPCODE );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync}
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsyncvoid PACK_APIENTRY crPackCombinerParameterivNV( GLenum pname, const GLint *params )
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync{
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync /* floats and ints are the same size, so the packing should be the same */
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync GET_PACKER_CONTEXT(pc);
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync if (__handleCombinerParameterData( pname, (const GLfloat *) params, CR_COMBINERPARAMETERIVNV_EXTEND_OPCODE ))
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync WRITE_OPCODE( pc, CR_EXTEND_OPCODE );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync}
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsyncvoid PACK_APIENTRY crPackCombinerStageParameterfvNV( GLenum stage, GLenum pname, const GLfloat *params )
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync{
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync GET_PACKER_CONTEXT(pc);
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync unsigned char *data_ptr;
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync GET_BUFFERED_POINTER(pc, 32 );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync WRITE_DATA( 0, GLint, 32 );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync WRITE_DATA( 4, GLenum, CR_COMBINERSTAGEPARAMETERFVNV_EXTEND_OPCODE );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync WRITE_DATA( 8, GLenum, stage );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync WRITE_DATA( 12, GLenum, pname );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync WRITE_DATA( 16, GLfloat, params[0] );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync WRITE_DATA( 20, GLfloat, params[1] );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync WRITE_DATA( 24, GLfloat, params[2] );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync WRITE_DATA( 28, GLfloat, params[3] );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync WRITE_OPCODE( pc, CR_EXTEND_OPCODE );
e0e0c19eefceaf5d4ec40f9466b58a771f50e799vboxsync}