diff options
| author | Ben Skeggs <darktama@iinet.net.au> | 2007-01-27 18:36:01 +1100 |
|---|---|---|
| committer | Ben Skeggs <darktama@iinet.net.au> | 2007-01-30 16:38:30 +1100 |
| commit | cafbc459f51ce6645e1fc4b6b2b7ec34efedd874 (patch) | |
| tree | be7eb85e824921b84c7f2fdf924f482b2f754711 /src/mesa/drivers/dri/nouveau/nouveau_shader_0.c | |
| parent | 0c5b42a99182be05a72c78fa9340b75f3be81220 (diff) | |
nouveau: maintain a map of which vtxprog input corresponds to which array
Diffstat (limited to 'src/mesa/drivers/dri/nouveau/nouveau_shader_0.c')
| -rw-r--r-- | src/mesa/drivers/dri/nouveau/nouveau_shader_0.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_shader_0.c b/src/mesa/drivers/dri/nouveau/nouveau_shader_0.c index 3bcc2ba755..81ed012c78 100644 --- a/src/mesa/drivers/dri/nouveau/nouveau_shader_0.c +++ b/src/mesa/drivers/dri/nouveau/nouveau_shader_0.c @@ -787,6 +787,50 @@ pass0_translate_instructions(nouveauShader *nvs, int ipos, int fpos, return GL_TRUE; } +static void +pass0_build_attrib_map(nouveauShader *nvs, struct gl_vertex_program *vp) +{ + GLuint inputs_read = vp->Base.InputsRead; + GLuint input_alloc = ~0xFFFF; + int i; + + for (i=0; i<NVS_MAX_ATTRIBS; i++) + nvs->vp_attrib_map[i] = -1; + + while (inputs_read) { + int in = ffs(inputs_read) - 1; + int hw; + inputs_read &= ~(1<<in); + + if (vp->IsNVProgram) { + /* NVvp: must alias */ + if (in >= VERT_ATTRIB_GENERIC0) + hw = in - VERT_ATTRIB_GENERIC0; + else + hw = in; + } else { + /* ARBvp: may alias + * GL2.0: must not alias + */ + if (in >= VERT_ATTRIB_GENERIC0) + hw = ffs(~input_alloc) - 1; + else + hw = in; + input_alloc |= (1<<hw); + } + + nvs->vp_attrib_map[hw] = in; + } + + if (NOUVEAU_DEBUG & DEBUG_SHADERS) { + printf("vtxprog attrib map:\n"); + for (i=0; i<NVS_MAX_ATTRIBS; i++) { + printf(" hw:%d = attrib:%d\n", + i, nvs->vp_attrib_map[i]); + } + } +} + GLboolean nouveau_shader_pass0(GLcontext *ctx, nouveauShader *nvs) { @@ -801,6 +845,8 @@ nouveau_shader_pass0(GLcontext *ctx, nouveauShader *nvs) case GL_VERTEX_PROGRAM_ARB: nvs->func = &nmesa->VPfunc; + pass0_build_attrib_map(nvs, vp); + if (vp->IsPositionInvariant) _mesa_insert_mvp_code(ctx, vp); #if 0 |