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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
/*
Copyright (C) Intel Corp. 2006. All Rights Reserved.
Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
develop this 3D driver.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice (including the
next paragraph) shall be included in all copies or substantial
portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
**********************************************************************/
/*
* Authors:
* Keith Whitwell <keith@tungstengraphics.com>
*/
#include "main/imports.h"
#include "main/enums.h"
#include "main/shaderobj.h"
#include "program/prog_parameter.h"
#include "program/program.h"
#include "program/programopt.h"
#include "tnl/tnl.h"
#include "talloc.h"
#include "brw_context.h"
#include "brw_wm.h"
static void brwBindProgram( GLcontext *ctx,
GLenum target,
struct gl_program *prog )
{
struct brw_context *brw = brw_context(ctx);
switch (target) {
case GL_VERTEX_PROGRAM_ARB:
brw->state.dirty.brw |= BRW_NEW_VERTEX_PROGRAM;
break;
case GL_FRAGMENT_PROGRAM_ARB:
brw->state.dirty.brw |= BRW_NEW_FRAGMENT_PROGRAM;
break;
}
}
static struct gl_program *brwNewProgram( GLcontext *ctx,
GLenum target,
GLuint id )
{
struct brw_context *brw = brw_context(ctx);
switch (target) {
case GL_VERTEX_PROGRAM_ARB: {
struct brw_vertex_program *prog = CALLOC_STRUCT(brw_vertex_program);
if (prog) {
prog->id = brw->program_id++;
return _mesa_init_vertex_program( ctx, &prog->program,
target, id );
}
else
return NULL;
}
case GL_FRAGMENT_PROGRAM_ARB: {
struct brw_fragment_program *prog = CALLOC_STRUCT(brw_fragment_program);
if (prog) {
prog->id = brw->program_id++;
return _mesa_init_fragment_program( ctx, &prog->program,
target, id );
}
else
return NULL;
}
default:
return _mesa_new_program(ctx, target, id);
}
}
static void brwDeleteProgram( GLcontext *ctx,
struct gl_program *prog )
{
_mesa_delete_program( ctx, prog );
}
static GLboolean brwIsProgramNative( GLcontext *ctx,
GLenum target,
struct gl_program *prog )
{
return GL_TRUE;
}
static void
shader_error(GLcontext *ctx, struct gl_program *prog, const char *msg)
{
struct gl_shader_program *shader;
shader = _mesa_lookup_shader_program(ctx, prog->Id);
if (shader) {
shader->InfoLog = talloc_strdup_append(shader->InfoLog, msg);
shader->LinkStatus = GL_FALSE;
}
}
static GLboolean brwProgramStringNotify( GLcontext *ctx,
GLenum target,
struct gl_program *prog )
{
struct brw_context *brw = brw_context(ctx);
int i;
if (target == GL_FRAGMENT_PROGRAM_ARB) {
struct gl_fragment_program *fprog = (struct gl_fragment_program *) prog;
struct brw_fragment_program *newFP = brw_fragment_program(fprog);
const struct brw_fragment_program *curFP =
brw_fragment_program_const(brw->fragment_program);
if (fprog->FogOption) {
_mesa_append_fog_code(ctx, fprog);
fprog->FogOption = GL_NONE;
}
if (newFP == curFP)
brw->state.dirty.brw |= BRW_NEW_FRAGMENT_PROGRAM;
newFP->id = brw->program_id++;
newFP->isGLSL = brw_wm_is_glsl(fprog);
}
else if (target == GL_VERTEX_PROGRAM_ARB) {
struct gl_vertex_program *vprog = (struct gl_vertex_program *) prog;
struct brw_vertex_program *newVP = brw_vertex_program(vprog);
const struct brw_vertex_program *curVP =
brw_vertex_program_const(brw->vertex_program);
if (newVP == curVP)
brw->state.dirty.brw |= BRW_NEW_VERTEX_PROGRAM;
if (newVP->program.IsPositionInvariant) {
_mesa_insert_mvp_code(ctx, &newVP->program);
}
newVP->id = brw->program_id++;
/* Also tell tnl about it:
*/
_tnl_program_string(ctx, target, prog);
}
/* Reject programs with subroutines, which are totally broken at the moment
* (all program flows return when any program flow returns, and
* the VS also hangs if a function call calls a function.
*
* See piglit glsl-{vs,fs}-functions-[23] tests.
*/
for (i = 0; i < prog->NumInstructions; i++) {
struct prog_instruction *inst = prog->Instructions + i;
int r;
if (prog->Instructions[i].Opcode == OPCODE_CAL) {
shader_error(ctx, prog,
"i965 driver doesn't yet support uninlined function "
"calls. Move to using a single return statement at "
"the end of the function to work around it.\n");
return GL_FALSE;
}
if (prog->Instructions[i].Opcode == OPCODE_RET) {
shader_error(ctx, prog,
"i965 driver doesn't yet support \"return\" "
"from main().\n");
return GL_FALSE;
}
for (r = 0; r < _mesa_num_inst_src_regs(inst->Opcode); r++) {
if (prog->Instructions[i].SrcReg[r].RelAddr &&
prog->Instructions[i].SrcReg[r].File == PROGRAM_INPUT) {
shader_error(ctx, prog,
"Variable indexing of shader inputs unsupported\n");
return GL_FALSE;
}
}
if (target == GL_FRAGMENT_PROGRAM_ARB &&
prog->Instructions[i].DstReg.RelAddr &&
prog->Instructions[i].DstReg.File == PROGRAM_OUTPUT) {
shader_error(ctx, prog,
"Variable indexing of FS outputs unsupported\n");
return GL_FALSE;
}
if (target == GL_FRAGMENT_PROGRAM_ARB) {
if ((prog->Instructions[i].DstReg.RelAddr &&
prog->Instructions[i].DstReg.File == PROGRAM_TEMPORARY) ||
(prog->Instructions[i].SrcReg[0].RelAddr &&
prog->Instructions[i].SrcReg[0].File == PROGRAM_TEMPORARY) ||
(prog->Instructions[i].SrcReg[1].RelAddr &&
prog->Instructions[i].SrcReg[1].File == PROGRAM_TEMPORARY) ||
(prog->Instructions[i].SrcReg[2].RelAddr &&
prog->Instructions[i].SrcReg[2].File == PROGRAM_TEMPORARY)) {
shader_error(ctx, prog,
"Variable indexing of variable arrays in the FS "
"unsupported\n");
return GL_FALSE;
}
}
}
return GL_TRUE;
}
void brwInitFragProgFuncs( struct dd_function_table *functions )
{
assert(functions->ProgramStringNotify == _tnl_program_string);
functions->BindProgram = brwBindProgram;
functions->NewProgram = brwNewProgram;
functions->DeleteProgram = brwDeleteProgram;
functions->IsProgramNative = brwIsProgramNative;
functions->ProgramStringNotify = brwProgramStringNotify;
functions->NewShader = brw_new_shader;
functions->NewShaderProgram = brw_new_shader_program;
functions->CompileShader = brw_compile_shader;
functions->LinkShader = brw_link_shader;
}
|