229 lines
6.1 KiB
C
229 lines
6.1 KiB
C
/*
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* Copyright (C) 2009 Francisco Jerez.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include "nouveau_driver.h"
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#include "nouveau_context.h"
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#include "nouveau_util.h"
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#include "nv_object.xml.h"
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#include "nv04_3d.xml.h"
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#include "nv04_driver.h"
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#include "main/stencil.h"
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static unsigned
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get_comparison_op(unsigned op)
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{
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switch (op) {
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case GL_NEVER:
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return 0x1;
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case GL_LESS:
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return 0x2;
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case GL_EQUAL:
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return 0x3;
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case GL_LEQUAL:
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return 0x4;
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case GL_GREATER:
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return 0x5;
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case GL_NOTEQUAL:
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return 0x6;
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case GL_GEQUAL:
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return 0x7;
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case GL_ALWAYS:
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return 0x8;
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default:
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assert(0);
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}
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}
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static unsigned
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get_stencil_op(unsigned op)
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{
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switch (op) {
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case GL_KEEP:
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return 0x1;
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case GL_ZERO:
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return 0x2;
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case GL_REPLACE:
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return 0x3;
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case GL_INCR:
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return 0x4;
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case GL_DECR:
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return 0x5;
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case GL_INVERT:
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return 0x6;
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case GL_INCR_WRAP:
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return 0x7;
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case GL_DECR_WRAP:
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return 0x8;
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default:
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assert(0);
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}
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}
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static unsigned
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get_blend_func(unsigned func)
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{
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switch (func) {
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case GL_ZERO:
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return 0x1;
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case GL_ONE:
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return 0x2;
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case GL_SRC_COLOR:
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return 0x3;
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case GL_ONE_MINUS_SRC_COLOR:
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return 0x4;
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case GL_SRC_ALPHA:
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return 0x5;
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case GL_ONE_MINUS_SRC_ALPHA:
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return 0x6;
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case GL_DST_ALPHA:
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return 0x7;
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case GL_ONE_MINUS_DST_ALPHA:
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return 0x8;
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case GL_DST_COLOR:
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return 0x9;
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case GL_ONE_MINUS_DST_COLOR:
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return 0xa;
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case GL_SRC_ALPHA_SATURATE:
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return 0xb;
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default:
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assert(0);
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}
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}
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void
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nv04_defer_control(struct gl_context *ctx, int emit)
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{
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context_dirty(ctx, CONTROL);
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}
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void
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nv04_emit_control(struct gl_context *ctx, int emit)
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{
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struct nv04_context *nv04 = to_nv04_context(ctx);
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struct gl_framebuffer *fb = ctx->DrawBuffer;
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int cull = ctx->Polygon.CullFaceMode;
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int front = ctx->Polygon.FrontFace;
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nv04->ctrl[0] = NV04_TEXTURED_TRIANGLE_CONTROL_Z_FORMAT_FIXED |
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NV04_TEXTURED_TRIANGLE_CONTROL_ORIGIN_CORNER;
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nv04->ctrl[1] = 0;
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nv04->ctrl[2] = 0;
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/* Dithering. */
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if (ctx->Color.DitherFlag)
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nv04->ctrl[0] |= NV04_TEXTURED_TRIANGLE_CONTROL_DITHER_ENABLE;
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/* Cull mode. */
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if (!ctx->Polygon.CullFlag)
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nv04->ctrl[0] |= NV04_TEXTURED_TRIANGLE_CONTROL_CULL_MODE_NONE;
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else if (cull == GL_FRONT_AND_BACK)
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nv04->ctrl[0] |= NV04_TEXTURED_TRIANGLE_CONTROL_CULL_MODE_BOTH;
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else
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nv04->ctrl[0] |= (cull == GL_FRONT) ^ (front == GL_CCW) ?
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NV04_TEXTURED_TRIANGLE_CONTROL_CULL_MODE_CW :
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NV04_TEXTURED_TRIANGLE_CONTROL_CULL_MODE_CCW;
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/* Depth test. */
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if (ctx->Depth.Test && fb->Visual.depthBits > 0)
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nv04->ctrl[0] |= NV04_TEXTURED_TRIANGLE_CONTROL_Z_ENABLE;
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if (ctx->Depth.Mask && fb->Visual.depthBits > 0)
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nv04->ctrl[0] |= NV04_TEXTURED_TRIANGLE_CONTROL_Z_WRITE;
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nv04->ctrl[0] |= get_comparison_op(ctx->Depth.Func) << 16;
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/* Alpha test. */
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if (ctx->Color.AlphaEnabled)
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nv04->ctrl[0] |= NV04_TEXTURED_TRIANGLE_CONTROL_ALPHA_ENABLE;
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nv04->ctrl[0] |= get_comparison_op(ctx->Color.AlphaFunc) << 8 |
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FLOAT_TO_UBYTE(ctx->Color.AlphaRef);
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/* Color mask. */
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if (GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 0))
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nv04->ctrl[0] |= NV04_MULTITEX_TRIANGLE_CONTROL0_RED_WRITE;
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if (GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 1))
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nv04->ctrl[0] |= NV04_MULTITEX_TRIANGLE_CONTROL0_GREEN_WRITE;
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if (GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 2))
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nv04->ctrl[0] |= NV04_MULTITEX_TRIANGLE_CONTROL0_BLUE_WRITE;
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if (GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 3))
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nv04->ctrl[0] |= NV04_MULTITEX_TRIANGLE_CONTROL0_ALPHA_WRITE;
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/* Stencil test. */
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if (ctx->Stencil.WriteMask[0])
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nv04->ctrl[0] |= NV04_MULTITEX_TRIANGLE_CONTROL0_STENCIL_WRITE;
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if (_mesa_stencil_is_enabled(ctx))
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nv04->ctrl[1] |= NV04_MULTITEX_TRIANGLE_CONTROL1_STENCIL_ENABLE;
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nv04->ctrl[1] |= get_comparison_op(ctx->Stencil.Function[0]) << 4 |
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_mesa_get_stencil_ref(ctx, 0) << 8 |
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ctx->Stencil.ValueMask[0] << 16 |
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ctx->Stencil.WriteMask[0] << 24;
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nv04->ctrl[2] |= get_stencil_op(ctx->Stencil.ZPassFunc[0]) << 8 |
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get_stencil_op(ctx->Stencil.ZFailFunc[0]) << 4 |
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get_stencil_op(ctx->Stencil.FailFunc[0]);
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}
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void
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nv04_defer_blend(struct gl_context *ctx, int emit)
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{
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context_dirty(ctx, BLEND);
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}
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void
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nv04_emit_blend(struct gl_context *ctx, int emit)
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{
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struct nv04_context *nv04 = to_nv04_context(ctx);
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nv04->blend &= NV04_TEXTURED_TRIANGLE_BLEND_TEXTURE_MAP__MASK;
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nv04->blend |= NV04_TEXTURED_TRIANGLE_BLEND_MASK_BIT_MSB |
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NV04_TEXTURED_TRIANGLE_BLEND_TEXTURE_PERSPECTIVE_ENABLE;
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/* Alpha blending. */
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nv04->blend |= get_blend_func(ctx->Color.Blend[0].DstRGB) << 28 |
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get_blend_func(ctx->Color.Blend[0].SrcRGB) << 24;
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if (ctx->Color.BlendEnabled)
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nv04->blend |= NV04_TEXTURED_TRIANGLE_BLEND_BLEND_ENABLE;
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/* Shade model. */
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if (ctx->Light.ShadeModel == GL_SMOOTH)
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nv04->blend |= NV04_TEXTURED_TRIANGLE_BLEND_SHADE_MODE_GOURAUD;
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else
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nv04->blend |= NV04_TEXTURED_TRIANGLE_BLEND_SHADE_MODE_FLAT;
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/* Secondary color */
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if (_mesa_need_secondary_color(ctx))
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nv04->blend |= NV04_TEXTURED_TRIANGLE_BLEND_SPECULAR_ENABLE;
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/* Fog. */
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if (ctx->Fog.Enabled) {
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nv04->blend |= NV04_TEXTURED_TRIANGLE_BLEND_FOG_ENABLE;
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nv04->fog = pack_rgba_f(MESA_FORMAT_B8G8R8A8_UNORM, ctx->Fog.Color);
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}
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}
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