1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
/* Copyright (c) 2001, Stanford University
* All rights reserved
*
* See the file LICENSE.txt for information on redistributing this software.
*/
#include "packer.h"
#include "cr_opcodes.h"
static GLboolean __handleCombinerParameterData(GLenum pname, const GLfloat *params, GLenum extended_opcode)
{
CR_GET_PACKER_CONTEXT(pc);
unsigned int params_length = 0;
unsigned int packet_length = sizeof(int) + sizeof(extended_opcode) + sizeof(pname);
unsigned char *data_ptr;
switch(pname)
{
case GL_CONSTANT_COLOR0_NV:
case GL_CONSTANT_COLOR1_NV:
params_length = 4 * sizeof(*params);
break;
case GL_NUM_GENERAL_COMBINERS_NV:
case GL_COLOR_SUM_CLAMP_NV:
params_length = sizeof(*params);
break;
default:
__PackError(__LINE__, __FILE__, GL_INVALID_ENUM,
"crPackCombinerParameter(bad pname)");
CRASSERT(0);
return GL_FALSE;
}
packet_length += params_length;
CR_GET_BUFFERED_POINTER(pc, packet_length);
WRITE_DATA(0, int, packet_length);
WRITE_DATA(sizeof(int) + 0, GLenum, extended_opcode);
WRITE_DATA(sizeof(int) + 4, GLenum, pname);
WRITE_DATA(sizeof(int) + 8, GLfloat, params[0]);
if (params_length > sizeof(*params))
{
WRITE_DATA(sizeof(int) + 12, GLfloat, params[1]);
WRITE_DATA(sizeof(int) + 16, GLfloat, params[2]);
WRITE_DATA(sizeof(int) + 20, GLfloat, params[3]);
CRASSERT(packet_length == sizeof(int) + 20 + 4);
}
return GL_TRUE;
}
void PACK_APIENTRY crPackCombinerParameterfvNV(GLenum pname, const GLfloat *params)
{
CR_GET_PACKER_CONTEXT(pc);
if (__handleCombinerParameterData(pname, params, CR_COMBINERPARAMETERFVNV_EXTEND_OPCODE))
WRITE_OPCODE(pc, CR_EXTEND_OPCODE);
CR_UNLOCK_PACKER_CONTEXT(pc);
}
void PACK_APIENTRY crPackCombinerParameterivNV(GLenum pname, const GLint *params)
{
/* floats and ints are the same size, so the packing should be the same */
CR_GET_PACKER_CONTEXT(pc);
if (__handleCombinerParameterData(pname, (const GLfloat *) params, CR_COMBINERPARAMETERIVNV_EXTEND_OPCODE))
WRITE_OPCODE(pc, CR_EXTEND_OPCODE);
CR_UNLOCK_PACKER_CONTEXT(pc);
}
void PACK_APIENTRY crPackCombinerStageParameterfvNV(GLenum stage, GLenum pname, const GLfloat *params)
{
CR_GET_PACKER_CONTEXT(pc);
unsigned char *data_ptr;
CR_GET_BUFFERED_POINTER(pc, 32);
WRITE_DATA(0, GLint, 32);
WRITE_DATA(4, GLenum, CR_COMBINERSTAGEPARAMETERFVNV_EXTEND_OPCODE);
WRITE_DATA(8, GLenum, stage);
WRITE_DATA(12, GLenum, pname);
WRITE_DATA(16, GLfloat, params[0]);
WRITE_DATA(20, GLfloat, params[1]);
WRITE_DATA(24, GLfloat, params[2]);
WRITE_DATA(28, GLfloat, params[3]);
WRITE_OPCODE(pc, CR_EXTEND_OPCODE);
CR_UNLOCK_PACKER_CONTEXT(pc);
}
|
