diff options
Diffstat (limited to 'src/mesa/drivers/dri/nouveau/nv30_state.c')
| -rw-r--r-- | src/mesa/drivers/dri/nouveau/nv30_state.c | 66 |
1 files changed, 60 insertions, 6 deletions
diff --git a/src/mesa/drivers/dri/nouveau/nv30_state.c b/src/mesa/drivers/dri/nouveau/nv30_state.c index 9bf5f2adea..4d79bb6127 100644 --- a/src/mesa/drivers/dri/nouveau/nv30_state.c +++ b/src/mesa/drivers/dri/nouveau/nv30_state.c @@ -348,17 +348,71 @@ static void nv30Enable(GLcontext *ctx, GLenum cap, GLboolean state) static void nv30Fogfv(GLcontext *ctx, GLenum pname, const GLfloat *params) { nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx); + + if (NOUVEAU_CARD_USING_SHADERS) + return; + switch(pname) { - case GL_FOG_MODE: - //BEGIN_RING_CACHE(NvSub3D, NV30_TCL_PRIMITIVE_3D_FOG_MODE, 1); - //OUT_RING_CACHE (params); + case GL_FOG_MODE: + { + int mode = 0; + /* The modes are different in GL and the card. */ + switch(ctx->Fog.Mode) + { + case GL_LINEAR: + mode = 0x804; break; - /* TODO: unsure about the rest.*/ - default: + case GL_EXP: + mode = 0x802; break; + case GL_EXP2: + mode = 0x803; + break; + } + BEGIN_RING_CACHE(NvSub3D, NV30_TCL_PRIMITIVE_3D_FOG_MODE, 1); + OUT_RING_CACHE (mode); + break; + } + case GL_FOG_COLOR: + { + GLubyte c[4]; + UNCLAMPED_FLOAT_TO_RGBA_CHAN(c,params); + BEGIN_RING_CACHE(NvSub3D, NV30_TCL_PRIMITIVE_3D_FOG_COLOR, 1); + /* nvidia ignores the alpha channel */ + OUT_RING_CACHE(PACK_COLOR_8888_REV(c[0],c[1],c[2],c[3])); + break; + } + case GL_FOG_DENSITY: + case GL_FOG_START: + case GL_FOG_END: + { + GLfloat f=0., c=0.; + switch(ctx->Fog.Mode) + { + case GL_LINEAR: + f = -1.0/(ctx->Fog.End - ctx->Fog.Start); + c = ctx->Fog.Start/(ctx->Fog.End - ctx->Fog.Start) + 2.001953; + break; + case GL_EXP: + f = -0.090168*ctx->Fog.Density; + c = 1.5; + case GL_EXP2: + f = -0.212330*ctx->Fog.Density; + c = 1.5; + } + BEGIN_RING_CACHE(NvSub3D, NV30_TCL_PRIMITIVE_3D_FOG_EQUATION_LINEAR, 1); + OUT_RING_CACHE(f); + BEGIN_RING_CACHE(NvSub3D, NV30_TCL_PRIMITIVE_3D_FOG_EQUATION_CONSTANT, 1); + OUT_RING_CACHE(c); + BEGIN_RING_CACHE(NvSub3D, NV30_TCL_PRIMITIVE_3D_FOG_EQUATION_QUADRATIC, 1); + OUT_RING_CACHE(0); /* Is this always the same? */ + break; + } +// case GL_FOG_COORD_SRC: + default: + break; } - } static void nv30Hint(GLcontext *ctx, GLenum target, GLenum mode) |