diff options
| author | Carlos Martín Nieto <carlos@cmartin.tk> | 2007-01-15 00:00:30 +0100 |
|---|---|---|
| committer | Stephane Marchesin <marchesin@icps.u-strasbg.fr> | 2007-01-15 00:00:30 +0100 |
| commit | 89f91d1804c0c4919c25d6b9931973733db1e664 (patch) | |
| tree | 5ad82399a1fb0578c9642c9a818e3e6d25faf064 /src | |
| parent | e2295511f5ee5fc4f5b39cba9e9c1c7a2f4e1eb5 (diff) | |
nouveau: Implement much of the fog handling.
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/drivers/dri/nouveau/nouveau_reg.h | 1 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/nouveau/nv30_state.c | 66 |
2 files changed, 61 insertions, 6 deletions
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_reg.h b/src/mesa/drivers/dri/nouveau/nouveau_reg.h index f52d381f74..8758b538c8 100644 --- a/src/mesa/drivers/dri/nouveau/nouveau_reg.h +++ b/src/mesa/drivers/dri/nouveau/nouveau_reg.h @@ -1035,6 +1035,7 @@ Object NV30_TCL_PRIMITIVE_3D used on: NV30 NV40 G70 # define NV30_TCL_PRIMITIVE_3D_STENCIL_FRONT_OP_ZPASS 0x00000364 # define NV30_TCL_PRIMITIVE_3D_SHADE_MODEL 0x00000368 # define NV30_TCL_PRIMITIVE_3D_FOG_ENABLE 0x0000036c +# define NV30_TCL_PRIMITIVE_3D_FOG_COLOR 0x00000370 # define NV40_TCL_PRIMITIVE_3D_COLOR_MASK_BUFFER123 0x00000370 /* Parameters: buffer3 b buffer3 g buffer3 r buffer3 a buffer2 b buffer2 g buffer2 r buffer2 a buffer1 b buffer1 g buffer1 r buffer1 a */ # define NV30_TCL_PRIMITIVE_3D_NORMALIZE_ENABLE 0x0000037c # define NV30_TCL_PRIMITIVE_3D_DEPTH_RANGE_NEAR 0x00000394 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) |