| /* |
| * Copyright (C) 2009 Francisco Jerez. |
| * All Rights Reserved. |
| * |
| * 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. |
| * |
| */ |
| |
| #include "nouveau_driver.h" |
| #include "nouveau_context.h" |
| #include "nouveau_util.h" |
| #include "nv_object.xml.h" |
| #include "nv04_3d.xml.h" |
| #include "nv04_driver.h" |
| |
| static unsigned |
| get_comparison_op(unsigned op) |
| { |
| switch (op) { |
| case GL_NEVER: |
| return 0x1; |
| case GL_LESS: |
| return 0x2; |
| case GL_EQUAL: |
| return 0x3; |
| case GL_LEQUAL: |
| return 0x4; |
| case GL_GREATER: |
| return 0x5; |
| case GL_NOTEQUAL: |
| return 0x6; |
| case GL_GEQUAL: |
| return 0x7; |
| case GL_ALWAYS: |
| return 0x8; |
| default: |
| assert(0); |
| } |
| } |
| |
| static unsigned |
| get_stencil_op(unsigned op) |
| { |
| switch (op) { |
| case GL_KEEP: |
| return 0x1; |
| case GL_ZERO: |
| return 0x2; |
| case GL_REPLACE: |
| return 0x3; |
| case GL_INCR: |
| return 0x4; |
| case GL_DECR: |
| return 0x5; |
| case GL_INVERT: |
| return 0x6; |
| case GL_INCR_WRAP: |
| return 0x7; |
| case GL_DECR_WRAP: |
| return 0x8; |
| default: |
| assert(0); |
| } |
| } |
| |
| static unsigned |
| get_blend_func(unsigned func) |
| { |
| switch (func) { |
| case GL_ZERO: |
| return 0x1; |
| case GL_ONE: |
| return 0x2; |
| case GL_SRC_COLOR: |
| return 0x3; |
| case GL_ONE_MINUS_SRC_COLOR: |
| return 0x4; |
| case GL_SRC_ALPHA: |
| return 0x5; |
| case GL_ONE_MINUS_SRC_ALPHA: |
| return 0x6; |
| case GL_DST_ALPHA: |
| return 0x7; |
| case GL_ONE_MINUS_DST_ALPHA: |
| return 0x8; |
| case GL_DST_COLOR: |
| return 0x9; |
| case GL_ONE_MINUS_DST_COLOR: |
| return 0xa; |
| case GL_SRC_ALPHA_SATURATE: |
| return 0xb; |
| default: |
| assert(0); |
| } |
| } |
| |
| void |
| nv04_defer_control(struct gl_context *ctx, int emit) |
| { |
| context_dirty(ctx, CONTROL); |
| } |
| |
| void |
| nv04_emit_control(struct gl_context *ctx, int emit) |
| { |
| struct nv04_context *nv04 = to_nv04_context(ctx); |
| int cull = ctx->Polygon.CullFaceMode; |
| int front = ctx->Polygon.FrontFace; |
| |
| nv04->ctrl[0] = NV04_TEXTURED_TRIANGLE_CONTROL_Z_FORMAT_FIXED | |
| NV04_TEXTURED_TRIANGLE_CONTROL_ORIGIN_CORNER; |
| nv04->ctrl[1] = 0; |
| nv04->ctrl[2] = 0; |
| |
| /* Dithering. */ |
| if (ctx->Color.DitherFlag) |
| nv04->ctrl[0] |= NV04_TEXTURED_TRIANGLE_CONTROL_DITHER_ENABLE; |
| |
| /* Cull mode. */ |
| if (!ctx->Polygon.CullFlag) |
| nv04->ctrl[0] |= NV04_TEXTURED_TRIANGLE_CONTROL_CULL_MODE_NONE; |
| else if (cull == GL_FRONT_AND_BACK) |
| nv04->ctrl[0] |= NV04_TEXTURED_TRIANGLE_CONTROL_CULL_MODE_BOTH; |
| else |
| nv04->ctrl[0] |= (cull == GL_FRONT) ^ (front == GL_CCW) ? |
| NV04_TEXTURED_TRIANGLE_CONTROL_CULL_MODE_CW : |
| NV04_TEXTURED_TRIANGLE_CONTROL_CULL_MODE_CCW; |
| |
| /* Depth test. */ |
| if (ctx->Depth.Test) |
| nv04->ctrl[0] |= NV04_TEXTURED_TRIANGLE_CONTROL_Z_ENABLE; |
| if (ctx->Depth.Mask) |
| nv04->ctrl[0] |= NV04_TEXTURED_TRIANGLE_CONTROL_Z_WRITE; |
| |
| nv04->ctrl[0] |= get_comparison_op(ctx->Depth.Func) << 16; |
| |
| /* Alpha test. */ |
| if (ctx->Color.AlphaEnabled) |
| nv04->ctrl[0] |= NV04_TEXTURED_TRIANGLE_CONTROL_ALPHA_ENABLE; |
| |
| nv04->ctrl[0] |= get_comparison_op(ctx->Color.AlphaFunc) << 8 | |
| FLOAT_TO_UBYTE(ctx->Color.AlphaRef); |
| |
| /* Color mask. */ |
| if (ctx->Color.ColorMask[0][RCOMP]) |
| nv04->ctrl[0] |= NV04_MULTITEX_TRIANGLE_CONTROL0_RED_WRITE; |
| if (ctx->Color.ColorMask[0][GCOMP]) |
| nv04->ctrl[0] |= NV04_MULTITEX_TRIANGLE_CONTROL0_GREEN_WRITE; |
| if (ctx->Color.ColorMask[0][BCOMP]) |
| nv04->ctrl[0] |= NV04_MULTITEX_TRIANGLE_CONTROL0_BLUE_WRITE; |
| if (ctx->Color.ColorMask[0][ACOMP]) |
| nv04->ctrl[0] |= NV04_MULTITEX_TRIANGLE_CONTROL0_ALPHA_WRITE; |
| |
| /* Stencil test. */ |
| if (ctx->Stencil.WriteMask[0]) |
| nv04->ctrl[0] |= NV04_MULTITEX_TRIANGLE_CONTROL0_STENCIL_WRITE; |
| |
| if (ctx->Stencil.Enabled) |
| nv04->ctrl[1] |= NV04_MULTITEX_TRIANGLE_CONTROL1_STENCIL_ENABLE; |
| |
| nv04->ctrl[1] |= get_comparison_op(ctx->Stencil.Function[0]) << 4 | |
| ctx->Stencil.Ref[0] << 8 | |
| ctx->Stencil.ValueMask[0] << 16 | |
| ctx->Stencil.WriteMask[0] << 24; |
| |
| nv04->ctrl[2] |= get_stencil_op(ctx->Stencil.ZPassFunc[0]) << 8 | |
| get_stencil_op(ctx->Stencil.ZFailFunc[0]) << 4 | |
| get_stencil_op(ctx->Stencil.FailFunc[0]); |
| } |
| |
| void |
| nv04_defer_blend(struct gl_context *ctx, int emit) |
| { |
| context_dirty(ctx, BLEND); |
| } |
| |
| void |
| nv04_emit_blend(struct gl_context *ctx, int emit) |
| { |
| struct nv04_context *nv04 = to_nv04_context(ctx); |
| |
| nv04->blend &= NV04_TEXTURED_TRIANGLE_BLEND_TEXTURE_MAP__MASK; |
| nv04->blend |= NV04_TEXTURED_TRIANGLE_BLEND_MASK_BIT_MSB | |
| NV04_TEXTURED_TRIANGLE_BLEND_TEXTURE_PERSPECTIVE_ENABLE; |
| |
| /* Alpha blending. */ |
| nv04->blend |= get_blend_func(ctx->Color.Blend[0].DstRGB) << 28 | |
| get_blend_func(ctx->Color.Blend[0].SrcRGB) << 24; |
| |
| if (ctx->Color.BlendEnabled) |
| nv04->blend |= NV04_TEXTURED_TRIANGLE_BLEND_BLEND_ENABLE; |
| |
| /* Shade model. */ |
| if (ctx->Light.ShadeModel == GL_SMOOTH) |
| nv04->blend |= NV04_TEXTURED_TRIANGLE_BLEND_SHADE_MODE_GOURAUD; |
| else |
| nv04->blend |= NV04_TEXTURED_TRIANGLE_BLEND_SHADE_MODE_FLAT; |
| |
| /* Secondary color */ |
| if (_mesa_need_secondary_color(ctx)) |
| nv04->blend |= NV04_TEXTURED_TRIANGLE_BLEND_SPECULAR_ENABLE; |
| |
| /* Fog. */ |
| if (ctx->Fog.Enabled) { |
| nv04->blend |= NV04_TEXTURED_TRIANGLE_BLEND_FOG_ENABLE; |
| nv04->fog = pack_rgba_f(MESA_FORMAT_ARGB8888, ctx->Fog.Color); |
| } |
| } |