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Commit | Line | Data |
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45516216 | 1 | struct gl_fragment_program_state { |
2 | unsigned char _Enabled; | |
3 | struct gl_fragment_program *_TexEnvProgram; | |
4 | }; | |
5 | struct gl_shader_state { | |
6 | struct gl_shader_program *CurrentProgram; | |
7 | }; | |
8 | struct gl_constants { | |
9 | unsigned int MaxTextureUnits; | |
10 | } GLvertexformat; | |
11 | typedef struct { | |
12 | struct gl_constants Const; | |
13 | struct gl_fragment_program_state FragmentProgram; | |
14 | struct gl_shader_state Shader; | |
15 | } GLcontext; | |
16 | struct mode_opt { | |
17 | unsigned int Source:4; | |
18 | unsigned int Operand:3; | |
19 | }; | |
20 | struct state_key { | |
21 | unsigned int enabled_units; | |
22 | struct { | |
23 | unsigned int NumArgsRGB:2; | |
24 | unsigned int ModeRGB:4; | |
25 | struct mode_opt OptRGB[3]; | |
26 | unsigned int ModeA:4; | |
27 | } unit[8]; | |
28 | }; | |
29 | struct ureg { | |
30 | unsigned int file:4; | |
31 | unsigned int idx:8; | |
32 | }; | |
33 | static const struct ureg undef = { | |
34 | 0, ~0, 0, 0, 0, 0, 0 | |
35 | }; | |
36 | struct texenv_fragment_program { | |
37 | struct state_key *state; | |
38 | struct ureg src_texture[8]; | |
39 | struct ureg src_previous; | |
40 | unsigned int last_tex_stage; | |
41 | }; | |
42 | static struct ureg get_temp(struct texenv_fragment_program *p) | |
43 | { | |
44 | } | |
45 | static struct ureg register_const4f(struct texenv_fragment_program *p, | |
46 | float s0, float s1, float s2, | |
47 | float s3) | |
48 | { | |
49 | } | |
50 | static struct ureg emit_combine_source(struct texenv_fragment_program *p, | |
51 | unsigned int mask, unsigned int unit, unsigned int source, | |
52 | unsigned int operand) | |
53 | { | |
54 | } | |
55 | static struct ureg emit_combine(struct texenv_fragment_program *p, | |
56 | struct ureg dest, unsigned int mask, | |
57 | unsigned char saturate, unsigned int unit, unsigned int nr, | |
58 | unsigned int mode, const struct mode_opt *opt) | |
59 | { | |
60 | struct ureg src[3]; | |
61 | unsigned int i; | |
62 | for (i = 0; i < nr; i++) | |
63 | src[i] = | |
64 | emit_combine_source(p, mask, unit, opt[i].Source, | |
65 | opt[i].Operand); | |
66 | switch (mode) { | |
67 | case 6:{ | |
68 | struct ureg tmp0; | |
69 | struct ureg neg1; | |
70 | struct ureg two; | |
71 | neg1 = register_const4f(p, -1, -1, -1, -1); | |
72 | two = register_const4f(p, 2, 2, 2, 2); | |
73 | emit_arith(p, 0, tmp0, 0xf, 0, two, src[0], | |
74 | neg1); | |
75 | } | |
76 | } | |
77 | } | |
78 | static struct ureg emit_texenv(struct texenv_fragment_program *p, unsigned int unit) | |
79 | { | |
80 | struct state_key *key; | |
81 | unsigned char saturate; | |
82 | struct ureg out; | |
83 | struct ureg shift; | |
84 | struct ureg dest; | |
85 | key = p->state; | |
86 | saturate = (unit < p->last_tex_stage); | |
87 | if (key->unit[unit].ModeRGB == key->unit[unit].ModeA | |
88 | && args_match(key, unit)) | |
89 | out = | |
90 | emit_combine(p, dest, 0xf, saturate, unit, | |
91 | key->unit[unit].NumArgsRGB, | |
92 | key->unit[unit].ModeRGB, | |
93 | key->unit[unit].OptRGB); | |
94 | } | |
95 | static void create_new_program(GLcontext * ctx, struct state_key *key, | |
96 | struct gl_fragment_program *program) | |
97 | { | |
98 | struct texenv_fragment_program p; | |
99 | unsigned int unit; | |
100 | for (unit = 0; unit < 8; unit++) | |
101 | p.src_texture[unit] = undef; | |
102 | if (key->enabled_units) | |
103 | for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) | |
104 | if (key->enabled_units & (1 << unit)) | |
105 | p.src_previous = emit_texenv(&p, unit); | |
106 | } | |
107 | void _mesa_UpdateTexEnvProgram(GLcontext * ctx) | |
108 | { | |
109 | struct state_key key; | |
110 | if (!ctx->FragmentProgram._Enabled && !ctx->Shader.CurrentProgram) | |
111 | if (!ctx->FragmentProgram._TexEnvProgram) | |
112 | create_new_program(ctx, &key, | |
113 | ctx->FragmentProgram._TexEnvProgram); | |
114 | } |