| 1 | /* Copyright (c) 2001, Stanford University
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| 2 | * All rights reserved
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| 3 | *
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| 4 | * See the file LICENSE.txt for information on redistributing this software.
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| 5 | */
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| 6 |
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| 7 | #include "packer.h"
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| 8 | #include "cr_opcodes.h"
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| 9 | #include "cr_version.h"
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| 10 |
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| 11 | #ifdef CR_ARB_point_parameters
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| 12 |
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| 13 | static GLboolean __handlePointDataf( GLenum pname, const GLfloat *params )
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| 14 | {
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| 15 | GET_PACKER_CONTEXT(pc);
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| 16 | int params_length = 0;
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| 17 | int packet_length = 2 * sizeof( int ) + sizeof( pname );
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| 18 | unsigned char *data_ptr;
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| 19 | switch( pname )
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| 20 | {
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| 21 | case GL_POINT_SIZE_MIN_ARB:
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| 22 | case GL_POINT_SIZE_MAX_ARB:
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| 23 | case GL_POINT_FADE_THRESHOLD_SIZE_ARB:
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| 24 | params_length = sizeof( *params );
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| 25 | break;
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| 26 | case GL_POINT_DISTANCE_ATTENUATION_ARB:
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| 27 | params_length = 3 * sizeof( *params );
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| 28 | break;
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| 29 | default:
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| 30 | {
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| 31 | char msg[100];
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| 32 | sprintf(msg, "Invalid pname in PointParameter: %d", (int) pname );
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| 33 | __PackError( __LINE__, __FILE__, GL_INVALID_ENUM, msg);
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| 34 | }
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| 35 | return GL_FALSE;
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| 36 | }
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| 37 | packet_length += params_length;
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| 38 |
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| 39 | GET_BUFFERED_POINTER(pc, packet_length );
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| 40 | WRITE_DATA( 0, GLint, packet_length );
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| 41 | WRITE_DATA( 4, GLenum, CR_POINTPARAMETERFVARB_EXTEND_OPCODE );
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| 42 | WRITE_DATA( 8, GLenum, pname );
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| 43 | WRITE_DATA( 12, GLfloat, params[0] );
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| 44 | if (packet_length > 16)
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| 45 | {
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| 46 | WRITE_DATA( 16, GLfloat, params[1] );
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| 47 | WRITE_DATA( 20, GLfloat, params[2] );
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| 48 | }
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| 49 | return GL_TRUE;
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| 50 | }
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| 51 |
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| 52 | void PACK_APIENTRY crPackPointParameterfvARB(GLenum pname, const GLfloat *params)
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| 53 | {
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| 54 | GET_PACKER_CONTEXT(pc);
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| 55 | if (__handlePointDataf( pname, params ))
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| 56 | WRITE_OPCODE( pc, CR_EXTEND_OPCODE );
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| 57 | }
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| 58 |
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| 59 | #endif
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| 60 |
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| 61 | static GLboolean __handlePointDatai( GLenum pname, const GLint *params )
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| 62 | {
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| 63 | GET_PACKER_CONTEXT(pc);
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| 64 | int params_length = 0;
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| 65 | int packet_length = 2 * sizeof( int ) + sizeof( pname );
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| 66 | unsigned char *data_ptr;
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| 67 | switch( pname )
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| 68 | {
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| 69 | case GL_POINT_SIZE_MIN_ARB:
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| 70 | case GL_POINT_SIZE_MAX_ARB:
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| 71 | case GL_POINT_FADE_THRESHOLD_SIZE_ARB:
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| 72 | params_length = sizeof( *params );
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| 73 | break;
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| 74 | case GL_POINT_DISTANCE_ATTENUATION_ARB:
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| 75 | params_length = 3 * sizeof( *params );
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| 76 | break;
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| 77 | default:
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| 78 | {
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| 79 | char msg[100];
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| 80 | sprintf(msg, "Invalid pname in PointParameter: %d", (int) pname );
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| 81 | __PackError( __LINE__, __FILE__, GL_INVALID_ENUM, msg);
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| 82 | }
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| 83 | return GL_FALSE;
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| 84 | }
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| 85 | packet_length += params_length;
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| 86 |
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| 87 | GET_BUFFERED_POINTER(pc, packet_length );
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| 88 | WRITE_DATA( 0, GLint, packet_length );
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| 89 | WRITE_DATA( 4, GLenum, CR_POINTPARAMETERIV_EXTEND_OPCODE );
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| 90 | WRITE_DATA( 8, GLenum, pname );
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| 91 | WRITE_DATA( 12, GLint, params[0] );
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| 92 | if (packet_length > 16)
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| 93 | {
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| 94 | WRITE_DATA( 16, GLint, params[1] );
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| 95 | WRITE_DATA( 20, GLint, params[2] );
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| 96 | }
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| 97 | return GL_TRUE;
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| 98 | }
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| 99 |
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| 100 | void PACK_APIENTRY crPackPointParameteriv(GLenum pname, const GLint *params)
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| 101 | {
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| 102 | GET_PACKER_CONTEXT(pc);
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| 103 | if (__handlePointDatai( pname, params ))
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| 104 | WRITE_OPCODE( pc, CR_EXTEND_OPCODE );
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| 105 | }
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