diff options
Diffstat (limited to 'src/mesa/drivers/dri/savage/savagestate.c')
| -rw-r--r-- | src/mesa/drivers/dri/savage/savagestate.c | 2444 |
1 files changed, 2444 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/savage/savagestate.c b/src/mesa/drivers/dri/savage/savagestate.c new file mode 100644 index 0000000000..622e4362ab --- /dev/null +++ b/src/mesa/drivers/dri/savage/savagestate.c @@ -0,0 +1,2444 @@ +/* + * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved. + * Copyright 2001-2003 S3 Graphics, Inc. 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, sub license, + * 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 NON-INFRINGEMENT. IN NO EVENT SHALL + * VIA, S3 GRAPHICS, 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 <stdio.h> + +#include "mtypes.h" +#include "enums.h" +#include "macros.h" +#include "dd.h" + +#include "mm.h" +#include "savagedd.h" +#include "savagecontext.h" + +#include "savagestate.h" +#include "savagetex.h" +#include "savagevb.h" +#include "savagetris.h" +#include "savageioctl.h" +#include "savage_bci.h" + +#include "swrast/swrast.h" +#include "array_cache/acache.h" +#include "tnl/tnl.h" +#include "swrast_setup/swrast_setup.h" + +static void savageBlendFunc_s4(GLcontext *); +static void savageBlendFunc_s3d(GLcontext *); + +static __inline__ GLuint savagePackColor(GLuint format, + GLubyte r, GLubyte g, + GLubyte b, GLubyte a) +{ + switch (format) { + case DV_PF_8888: + return SAVAGEPACKCOLOR8888(r,g,b,a); + case DV_PF_565: + return SAVAGEPACKCOLOR565(r,g,b); + default: + + return 0; + } +} + + +static void savageDDAlphaFunc_s4(GLcontext *ctx, GLenum func, GLfloat ref) +{ + /* This can be done in BlendFunc*/ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + imesa->dirty |= SAVAGE_UPLOAD_CTX; + savageBlendFunc_s4(ctx); +} +static void savageDDAlphaFunc_s3d(GLcontext *ctx, GLenum func, GLfloat ref) +{ + /* This can be done in BlendFunc*/ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + imesa->dirty |= SAVAGE_UPLOAD_CTX; + savageBlendFunc_s3d(ctx); +} + +static void savageDDBlendEquationSeparate(GLcontext *ctx, + GLenum modeRGB, GLenum modeA) +{ + assert( modeRGB == modeA ); + + /* BlendEquation sets ColorLogicOpEnabled in an unexpected + * manner. + */ + FALLBACK( ctx, SAVAGE_FALLBACK_LOGICOP, + (ctx->Color.ColorLogicOpEnabled && + ctx->Color.LogicOp != GL_COPY)); + + /* Can only do blend addition, not min, max, subtract, etc. */ + FALLBACK( ctx, SAVAGE_FALLBACK_BLEND_EQ, + modeRGB != GL_FUNC_ADD); +} + + +static void savageBlendFunc_s4(GLcontext *ctx) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + Reg_DrawLocalCtrl DrawLocalCtrl; + + /* set up draw control register (including blending, alpha + * test, dithering, and shading model) + */ + + /* + * And mask removes flushPdDestWrites + */ + + DrawLocalCtrl.ui = imesa->Registers.DrawLocalCtrl.ui & ~0x40000000; + + /* + * blend modes + */ + if(ctx->Color.BlendEnabled){ + switch (ctx->Color.BlendDstRGB) + { + case GL_ZERO: + DrawLocalCtrl.ni.dstAlphaMode = DAM_Zero; + break; + + case GL_ONE: + DrawLocalCtrl.ni.dstAlphaMode = DAM_One; + DrawLocalCtrl.ni.flushPdDestWrites = GL_TRUE; + break; + + case GL_SRC_COLOR: + DrawLocalCtrl.ni.dstAlphaMode = DAM_SrcClr; + DrawLocalCtrl.ni.flushPdDestWrites = GL_TRUE; + break; + + case GL_ONE_MINUS_SRC_COLOR: + DrawLocalCtrl.ni.dstAlphaMode = DAM_1SrcClr; + DrawLocalCtrl.ni.flushPdDestWrites = GL_TRUE; + break; + + case GL_SRC_ALPHA: + DrawLocalCtrl.ni.dstAlphaMode = DAM_SrcAlpha; + DrawLocalCtrl.ni.flushPdDestWrites = GL_TRUE; + break; + + case GL_ONE_MINUS_SRC_ALPHA: + DrawLocalCtrl.ni.dstAlphaMode = DAM_1SrcAlpha; + DrawLocalCtrl.ni.flushPdDestWrites = GL_TRUE; + break; + + case GL_DST_ALPHA: + if (imesa->glCtx->Visual.alphaBits == 0) + { + DrawLocalCtrl.ni.dstAlphaMode = DAM_One; + } + else + { + DrawLocalCtrl.ni.dstAlphaMode = DAM_DstAlpha; + } + DrawLocalCtrl.ni.flushPdDestWrites = GL_TRUE; + break; + + case GL_ONE_MINUS_DST_ALPHA: + if (imesa->glCtx->Visual.alphaBits == 0) + { + DrawLocalCtrl.ni.dstAlphaMode = DAM_Zero; + } + else + { + DrawLocalCtrl.ni.dstAlphaMode = DAM_1DstAlpha; + DrawLocalCtrl.ni.flushPdDestWrites = GL_TRUE; + } + break; + } + + switch (ctx->Color.BlendSrcRGB) + { + case GL_ZERO: + DrawLocalCtrl.ni.srcAlphaMode = SAM_Zero; + break; + + case GL_ONE: + DrawLocalCtrl.ni.srcAlphaMode = SAM_One; + break; + + case GL_DST_COLOR: + DrawLocalCtrl.ni.srcAlphaMode = SAM_DstClr; + DrawLocalCtrl.ni.flushPdDestWrites = GL_TRUE; + break; + + case GL_ONE_MINUS_DST_COLOR: + DrawLocalCtrl.ni.srcAlphaMode = SAM_1DstClr; + DrawLocalCtrl.ni.flushPdDestWrites = GL_TRUE; + break; + + case GL_SRC_ALPHA: + DrawLocalCtrl.ni.srcAlphaMode = SAM_SrcAlpha; + break; + + case GL_ONE_MINUS_SRC_ALPHA: + DrawLocalCtrl.ni.srcAlphaMode = SAM_1SrcAlpha; + break; + + case GL_DST_ALPHA: + if (imesa->glCtx->Visual.alphaBits == 0) + { + DrawLocalCtrl.ni.srcAlphaMode = SAM_One; + } + else + { + DrawLocalCtrl.ni.srcAlphaMode = SAM_DstAlpha; + DrawLocalCtrl.ni.flushPdDestWrites = GL_TRUE; + } + break; + + case GL_ONE_MINUS_DST_ALPHA: + if (imesa->glCtx->Visual.alphaBits == 0) + { + DrawLocalCtrl.ni.srcAlphaMode = SAM_Zero; + } + else + { + DrawLocalCtrl.ni.srcAlphaMode = SAM_1DstAlpha; + DrawLocalCtrl.ni.flushPdDestWrites = GL_TRUE; + } + break; + } + } + else + { + DrawLocalCtrl.ni.dstAlphaMode = DAM_Zero; + DrawLocalCtrl.ni.srcAlphaMode = SAM_One; + } + + /* alpha test*/ + + if(ctx->Color.AlphaEnabled) + { + int a; + GLubyte alphaRef; + + CLAMPED_FLOAT_TO_UBYTE(alphaRef,ctx->Color.AlphaRef); + + switch(ctx->Color.AlphaFunc) { + case GL_NEVER: a = LCS_A_NEVER; break; + case GL_ALWAYS: a = LCS_A_ALWAYS; break; + case GL_LESS: a = LCS_A_LESS; break; + case GL_LEQUAL: a = LCS_A_LEQUAL; break; + case GL_EQUAL: a = LCS_A_EQUAL; break; + case GL_GREATER: a = LCS_A_GREATER; break; + case GL_GEQUAL: a = LCS_A_GEQUAL; break; + case GL_NOTEQUAL: a = LCS_A_NOTEQUAL; break; + default:return; + } + + if (imesa->Registers.DrawCtrl1.ni.alphaTestEn != GL_TRUE) + { + imesa->Registers.DrawCtrl1.ni.alphaTestEn = GL_TRUE; + imesa->Registers.changed.ni.fDrawCtrl1Changed = GL_TRUE; + } + + if (imesa->Registers.DrawCtrl1.ni.alphaTestCmpFunc != + (a & 0x0F)) + { + imesa->Registers.DrawCtrl1.ni.alphaTestCmpFunc = + a & 0x0F; + imesa->Registers.changed.ni.fDrawCtrl1Changed = GL_TRUE; + } + + /* looks like rounding control is different on katmai than p2*/ + + if (imesa->Registers.DrawCtrl0.ni.alphaRefVal != alphaRef) + { + imesa->Registers.DrawCtrl0.ni.alphaRefVal = alphaRef; + imesa->Registers.changed.ni.fDrawCtrl0Changed = GL_TRUE; + } + } + else + { + if (imesa->Registers.DrawCtrl1.ni.alphaTestEn != GL_FALSE) + { + imesa->Registers.DrawCtrl1.ni.alphaTestEn = GL_FALSE; + imesa->Registers.changed.ni.fDrawCtrl1Changed = GL_TRUE; + } + } + + /* Set/Reset Z-after-alpha*/ + + DrawLocalCtrl.ni.wrZafterAlphaTst = imesa->Registers.DrawCtrl1.ni.alphaTestEn; + /*DrawLocalCtrl.ni.zUpdateEn = ~DrawLocalCtrl.ni.wrZafterAlphaTst;*/ + + if (imesa->Registers.DrawLocalCtrl.ui != DrawLocalCtrl.ui) + { + imesa->Registers.DrawLocalCtrl.ui = DrawLocalCtrl.ui; + imesa->Registers.changed.ni.fDrawLocalCtrlChanged = GL_TRUE; + } + + /* dithering*/ + + if ( ctx->Color.DitherFlag ) + { + if (imesa->Registers.DrawCtrl1.ni.ditherEn != GL_TRUE) + { + imesa->Registers.DrawCtrl1.ni.ditherEn = GL_TRUE; + imesa->Registers.changed.ni.fDrawCtrl1Changed = GL_TRUE; + } + } + else + { + if (imesa->Registers.DrawCtrl1.ni.ditherEn != GL_FALSE) + { + imesa->Registers.DrawCtrl1.ni.ditherEn = GL_FALSE; + imesa->Registers.changed.ni.fDrawCtrl1Changed = GL_TRUE; + } + } +} +static void savageBlendFunc_s3d(GLcontext *ctx) +{ + + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + Reg_DrawCtrl DrawCtrl; + + /* set up draw control register (including blending, alpha + * test, dithering, and shading model) + */ + + /* + * And mask removes flushPdDestWrites + */ + + DrawCtrl.ui = imesa->Registers.DrawCtrl.ui & ~0x20000000; + + /* + * blend modes + */ + if(ctx->Color.BlendEnabled){ + switch (ctx->Color.BlendDstRGB) + { + case GL_ZERO: + DrawCtrl.ni.dstAlphaMode = DAM_Zero; + break; + + case GL_ONE: + DrawCtrl.ni.dstAlphaMode = DAM_One; + DrawCtrl.ni.flushPdDestWrites = GL_TRUE; + break; + + case GL_SRC_COLOR: + DrawCtrl.ni.dstAlphaMode = DAM_SrcClr; + DrawCtrl.ni.flushPdDestWrites = GL_TRUE; + break; + + case GL_ONE_MINUS_SRC_COLOR: + DrawCtrl.ni.dstAlphaMode = DAM_1SrcClr; + DrawCtrl.ni.flushPdDestWrites = GL_TRUE; + break; + + case GL_SRC_ALPHA: + DrawCtrl.ni.dstAlphaMode = DAM_SrcAlpha; + DrawCtrl.ni.flushPdDestWrites = GL_TRUE; + break; + + case GL_ONE_MINUS_SRC_ALPHA: + DrawCtrl.ni.dstAlphaMode = DAM_1SrcAlpha; + DrawCtrl.ni.flushPdDestWrites = GL_TRUE; + break; + + case GL_DST_ALPHA: + if (imesa->glCtx->Visual.alphaBits == 0) + { + DrawCtrl.ni.dstAlphaMode = DAM_One; + } + else + { + DrawCtrl.ni.dstAlphaMode = DAM_DstAlpha; + } + DrawCtrl.ni.flushPdDestWrites = GL_TRUE; + break; + + case GL_ONE_MINUS_DST_ALPHA: + if (imesa->glCtx->Visual.alphaBits == 0) + { + DrawCtrl.ni.dstAlphaMode = DAM_Zero; + } + else + { + DrawCtrl.ni.dstAlphaMode = DAM_1DstAlpha; + DrawCtrl.ni.flushPdDestWrites = GL_TRUE; + } + break; + } + + switch (ctx->Color.BlendSrcRGB) + { + case GL_ZERO: + DrawCtrl.ni.srcAlphaMode = SAM_Zero; + break; + + case GL_ONE: + DrawCtrl.ni.srcAlphaMode = SAM_One; + break; + + case GL_DST_COLOR: + DrawCtrl.ni.srcAlphaMode = SAM_DstClr; + DrawCtrl.ni.flushPdDestWrites = GL_TRUE; + break; + + case GL_ONE_MINUS_DST_COLOR: + DrawCtrl.ni.srcAlphaMode = SAM_1DstClr; + DrawCtrl.ni.flushPdDestWrites = GL_TRUE; + break; + + case GL_SRC_ALPHA: + DrawCtrl.ni.srcAlphaMode = SAM_SrcAlpha; + break; + + case GL_ONE_MINUS_SRC_ALPHA: + DrawCtrl.ni.srcAlphaMode = SAM_1SrcAlpha; + break; + + case GL_DST_ALPHA: + if (imesa->glCtx->Visual.alphaBits == 0) + { + DrawCtrl.ni.srcAlphaMode = SAM_One; + } + else + { + DrawCtrl.ni.srcAlphaMode = SAM_DstAlpha; + DrawCtrl.ni.flushPdDestWrites = GL_TRUE; + } + break; + + case GL_ONE_MINUS_DST_ALPHA: + if (imesa->glCtx->Visual.alphaBits == 0) + { + DrawCtrl.ni.srcAlphaMode = SAM_Zero; + } + else + { + DrawCtrl.ni.srcAlphaMode = SAM_1DstAlpha; + DrawCtrl.ni.flushPdDestWrites = GL_TRUE; + } + break; + } + } + else + { + DrawCtrl.ni.dstAlphaMode = DAM_Zero; + DrawCtrl.ni.srcAlphaMode = SAM_One; + } + + /* alpha test*/ + + if(ctx->Color.AlphaEnabled) + { + GLint a; + GLubyte alphaRef; + + CLAMPED_FLOAT_TO_UBYTE(alphaRef,ctx->Color.AlphaRef); + + switch(ctx->Color.AlphaFunc) { + case GL_NEVER: a = LCS_A_NEVER; break; + case GL_ALWAYS: a = LCS_A_ALWAYS; break; + case GL_LESS: a = LCS_A_LESS; break; + case GL_LEQUAL: a = LCS_A_LEQUAL; break; + case GL_EQUAL: a = LCS_A_EQUAL; break; + case GL_GREATER: a = LCS_A_GREATER; break; + case GL_GEQUAL: a = LCS_A_GEQUAL; break; + case GL_NOTEQUAL: a = LCS_A_NOTEQUAL; break; + default:return; + } + + DrawCtrl.ni.alphaTestEn = GL_TRUE; + DrawCtrl.ni.alphaTestCmpFunc = a & 0x07; + DrawCtrl.ni.alphaRefVal = alphaRef; + } + else + { + DrawCtrl.ni.alphaTestEn = GL_FALSE; + } + + /* Set/Reset Z-after-alpha*/ + + if (imesa->Registers.ZBufCtrl.s3d.wrZafterAlphaTst != + DrawCtrl.ni.alphaTestEn) + { + imesa->Registers.ZBufCtrl.s3d.wrZafterAlphaTst = + DrawCtrl.ni.alphaTestEn; + imesa->Registers.changed.ni.fZBufCtrlChanged = GL_TRUE; + } + /*DrawLocalCtrl.ni.zUpdateEn = ~DrawLocalCtrl.ni.wrZafterAlphaTst;*/ + + /* dithering*/ + + if ( ctx->Color.DitherFlag ) + { + DrawCtrl.ni.ditherEn = GL_TRUE; + } + else + { + DrawCtrl.ni.ditherEn = GL_FALSE; + } + + if (imesa->Registers.DrawCtrl.ui != DrawCtrl.ui) + { + imesa->Registers.DrawCtrl.ui = DrawCtrl.ui; + imesa->Registers.changed.ni.fDrawCtrlChanged = GL_TRUE; + } +} + +static void savageDDBlendFuncSeparate_s4( GLcontext *ctx, GLenum sfactorRGB, + GLenum dfactorRGB, GLenum sfactorA, + GLenum dfactorA ) +{ + assert (dfactorRGB == dfactorA && sfactorRGB == sfactorA); + savageBlendFunc_s4( ctx ); +} +static void savageDDBlendFuncSeparate_s3d( GLcontext *ctx, GLenum sfactorRGB, + GLenum dfactorRGB, GLenum sfactorA, + GLenum dfactorA ) +{ + assert (dfactorRGB == dfactorA && sfactorRGB == sfactorA); + savageBlendFunc_s3d( ctx ); +} + + + +static void savageDDDepthFunc_s4(GLcontext *ctx, GLenum func) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + int zmode; +#define depthIndex 0 + + /* set up z-buffer control register (global) + * set up z-buffer offset register (global) + * set up z read/write watermarks register (global) + */ + + switch(func) { + case GL_NEVER: zmode = LCS_Z_NEVER; break; + case GL_ALWAYS: zmode = LCS_Z_ALWAYS; break; + case GL_LESS: zmode = LCS_Z_LESS; break; + case GL_LEQUAL: zmode = LCS_Z_LEQUAL; break; + case GL_EQUAL: zmode = LCS_Z_EQUAL; break; + case GL_GREATER: zmode = LCS_Z_GREATER; break; + case GL_GEQUAL: zmode = LCS_Z_GEQUAL; break; + case GL_NOTEQUAL: zmode = LCS_Z_NOTEQUAL; break; + default:return; + } + if (ctx->Depth.Test) + { + + if (imesa->Registers.ZBufCtrl.s4.zCmpFunc != (zmode & 0x0F)) + { + imesa->Registers.ZBufCtrl.s4.zCmpFunc = zmode & 0x0F; + imesa->Registers.changed.ni.fZBufCtrlChanged = GL_TRUE; + } + + if (imesa->Registers.DrawLocalCtrl.ni.zUpdateEn != ctx->Depth.Mask) + { + imesa->Registers.DrawLocalCtrl.ni.zUpdateEn = ctx->Depth.Mask; + imesa->Registers.changed.ni.fDrawLocalCtrlChanged = GL_TRUE; + } + + if (imesa->Registers.DrawLocalCtrl.ni.flushPdZbufWrites == GL_FALSE) + { + imesa->Registers.DrawLocalCtrl.ni.flushPdZbufWrites = GL_TRUE; + imesa->Registers.changed.ni.fDrawLocalCtrlChanged = GL_TRUE; +#if 1 + imesa->Registers.ZWatermarks.ni.wLow = 0; + imesa->Registers.changed.ni.fZWatermarksChanged = GL_TRUE; +#endif + } + + if (imesa->Registers.ZBufCtrl.s4.zBufEn != GL_TRUE) + { + imesa->Registers.ZBufCtrl.s4.zBufEn = GL_TRUE; + imesa->Registers.changed.ni.fZBufCtrlChanged = GL_TRUE; + } + } + else if (imesa->glCtx->Stencil.Enabled && + !imesa->glCtx->DrawBuffer->UseSoftwareStencilBuffer) + { +#define STENCIL (0x27) + + /* by Jiayo, tempory disable HW stencil in 24 bpp */ +#if HW_STENCIL + if(imesa->hw_stencil) + { + if ((imesa->Registers.ZBufCtrl.ui & STENCIL) != STENCIL) + { + imesa->Registers.ZBufCtrl.s4.zCmpFunc = GL_ALWAYS & 0x0F; + imesa->Registers.ZBufCtrl.s4.zBufEn = GL_TRUE; + imesa->Registers.changed.ni.fZBufCtrlChanged = GL_TRUE; + } + + if (imesa->Registers.DrawLocalCtrl.ni.zUpdateEn != GL_FALSE) + { + imesa->Registers.DrawLocalCtrl.ni.zUpdateEn = GL_FALSE; + imesa->Registers.changed.ni.fDrawLocalCtrlChanged = GL_TRUE; + } + + if (imesa->Registers.DrawLocalCtrl.ni.flushPdZbufWrites == GL_TRUE) + { + imesa->Registers.DrawLocalCtrl.ni.flushPdZbufWrites = GL_FALSE; + imesa->Registers.changed.ni.fDrawLocalCtrlChanged = GL_TRUE; + + imesa->Registers.ZWatermarks.ni.wLow = 8; + imesa->Registers.changed.ni.fZWatermarksChanged = GL_TRUE; + } + } +#endif /* end #if HW_STENCIL */ + } + else + { + + if (imesa->Registers.DrawLocalCtrl.ni.drawUpdateEn == GL_FALSE) + { + imesa->Registers.ZBufCtrl.s4.zCmpFunc = LCS_Z_ALWAYS & 0x0F; + imesa->Registers.ZBufCtrl.s4.zBufEn = GL_TRUE; + imesa->Registers.changed.ni.fZBufCtrlChanged = GL_TRUE; + + if (imesa->Registers.DrawLocalCtrl.ni.zUpdateEn != GL_FALSE) + { + imesa->Registers.DrawLocalCtrl.ni.zUpdateEn = GL_FALSE; + imesa->Registers.changed.ni.fDrawLocalCtrlChanged = GL_TRUE; + } + + if (imesa->Registers.DrawLocalCtrl.ni.flushPdZbufWrites == GL_TRUE) + { + imesa->Registers.DrawLocalCtrl.ni.flushPdZbufWrites = GL_FALSE; + imesa->Registers.changed.ni.fDrawLocalCtrlChanged = GL_TRUE; + + imesa->Registers.ZWatermarks.ni.wLow = 8; + imesa->Registers.changed.ni.fZWatermarksChanged = GL_TRUE; + + } + } + else + + /* DRAWUPDATE_REQUIRES_Z_ENABLED*/ + { + if (imesa->Registers.ZBufCtrl.s4.zBufEn != GL_FALSE) + { + imesa->Registers.ZBufCtrl.s4.zBufEn = GL_FALSE; + imesa->Registers.DrawLocalCtrl.ni.zUpdateEn = GL_FALSE; + imesa->Registers.changed.ni.fZBufCtrlChanged = GL_TRUE; + imesa->Registers.changed.ni.fDrawLocalCtrlChanged = GL_TRUE; + imesa->Registers.DrawLocalCtrl.ni.flushPdZbufWrites = GL_FALSE; + imesa->Registers.ZWatermarks.ni.wLow = 8; + imesa->Registers.changed.ni.fZWatermarksChanged = GL_TRUE; + } + } + } + + imesa->dirty |= SAVAGE_UPLOAD_CTX; +} +static void savageDDDepthFunc_s3d(GLcontext *ctx, GLenum func) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + Reg_ZBufCtrl ZBufCtrl; + int zmode; +#define depthIndex 0 + + /* set up z-buffer control register (global) + * set up z-buffer offset register (global) + * set up z read/write watermarks register (global) + */ + ZBufCtrl.ui = imesa->Registers.ZBufCtrl.ui; + + switch(func) { + case GL_NEVER: zmode = LCS_Z_NEVER; break; + case GL_ALWAYS: zmode = LCS_Z_ALWAYS; break; + case GL_LESS: zmode = LCS_Z_LESS; break; + case GL_LEQUAL: zmode = LCS_Z_LEQUAL; break; + case GL_EQUAL: zmode = LCS_Z_EQUAL; break; + case GL_GREATER: zmode = LCS_Z_GREATER; break; + case GL_GEQUAL: zmode = LCS_Z_GEQUAL; break; + case GL_NOTEQUAL: zmode = LCS_Z_NOTEQUAL; break; + default:return; + } + if (ctx->Depth.Test) + { + ZBufCtrl.s3d.zBufEn = GL_TRUE; + ZBufCtrl.s3d.zCmpFunc = zmode & 0x0F; + ZBufCtrl.s3d.zUpdateEn = ctx->Depth.Mask; + + if (imesa->Registers.DrawCtrl.ni.flushPdZbufWrites == GL_FALSE) + { + imesa->Registers.DrawCtrl.ni.flushPdZbufWrites = GL_TRUE; + imesa->Registers.changed.ni.fDrawCtrlChanged = GL_TRUE; +#if 1 + imesa->Registers.ZWatermarks.ni.wLow = 0; + imesa->Registers.changed.ni.fZWatermarksChanged = GL_TRUE; +#endif + } + } + else + { + if (ZBufCtrl.s3d.drawUpdateEn == GL_FALSE) { + ZBufCtrl.s3d.zCmpFunc = LCS_Z_ALWAYS & 0x0F; + ZBufCtrl.s3d.zBufEn = GL_TRUE; + ZBufCtrl.s3d.zUpdateEn = GL_FALSE; + } + else + + /* DRAWUPDATE_REQUIRES_Z_ENABLED*/ + { + ZBufCtrl.s3d.zBufEn = GL_FALSE; + ZBufCtrl.s3d.zUpdateEn = GL_FALSE; + } + + if (imesa->Registers.DrawCtrl.ni.flushPdZbufWrites == GL_TRUE) + { + imesa->Registers.DrawCtrl.ni.flushPdZbufWrites = GL_FALSE; + imesa->Registers.changed.ni.fDrawCtrlChanged = GL_TRUE; + + imesa->Registers.ZWatermarks.ni.wLow = 8; + imesa->Registers.changed.ni.fZWatermarksChanged = GL_TRUE; + } + } + + if (imesa->Registers.ZBufCtrl.ui != ZBufCtrl.ui) + { + imesa->Registers.ZBufCtrl.ui = ZBufCtrl.ui; + imesa->Registers.changed.ni.fZBufCtrlChanged = GL_TRUE; + } + + imesa->dirty |= SAVAGE_UPLOAD_CTX; +} + +static void savageDDDepthMask_s4(GLcontext *ctx, GLboolean flag) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + + imesa->dirty |= SAVAGE_UPLOAD_CTX; + if (flag) + { + if (imesa->Registers.DrawLocalCtrl.ni.flushPdZbufWrites == GL_FALSE) + { + imesa->Registers.DrawLocalCtrl.ni.flushPdZbufWrites = GL_TRUE; + imesa->Registers.changed.ni.fDrawLocalCtrlChanged = GL_TRUE; + } + } + else + { + if (imesa->Registers.DrawLocalCtrl.ni.flushPdZbufWrites == GL_TRUE) + { + imesa->Registers.DrawLocalCtrl.ni.flushPdZbufWrites = GL_FALSE; + imesa->Registers.changed.ni.fDrawLocalCtrlChanged = GL_TRUE; + } + } + savageDDDepthFunc_s4(ctx,ctx->Depth.Func); +} +static void savageDDDepthMask_s3d(GLcontext *ctx, GLboolean flag) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + + imesa->dirty |= SAVAGE_UPLOAD_CTX; + if (flag) + { + if (imesa->Registers.DrawCtrl.ni.flushPdZbufWrites == GL_FALSE) + { + imesa->Registers.DrawCtrl.ni.flushPdZbufWrites = GL_TRUE; + imesa->Registers.changed.ni.fDrawCtrlChanged = GL_TRUE; + } + } + else + { + if (imesa->Registers.DrawCtrl.ni.flushPdZbufWrites == GL_TRUE) + { + imesa->Registers.DrawCtrl.ni.flushPdZbufWrites = GL_FALSE; + imesa->Registers.changed.ni.fDrawCtrlChanged = GL_TRUE; + } + } + savageDDDepthFunc_s3d(ctx,ctx->Depth.Func); +} + + + + +/* ============================================================= + * Hardware clipping + */ + + + void savageDDScissor( GLcontext *ctx, GLint x, GLint y, + GLsizei w, GLsizei h ) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + imesa->scissor_rect.x1 = MAX2(imesa->drawX+x,imesa->draw_rect.x1); + imesa->scissor_rect.y1 = MAX2(imesa->drawY+imesa->driDrawable->h -(y+h), + imesa->draw_rect.y1); + imesa->scissor_rect.x2 = MIN2(imesa->drawX+x+w,imesa->draw_rect.x2); + imesa->scissor_rect.y2 = MIN2(imesa->drawY+imesa->driDrawable->h - y, + imesa->draw_rect.y2); + + + imesa->Registers.changed.ni.fScissorsChanged=GL_TRUE; + + imesa->dirty |= SAVAGE_UPLOAD_CLIPRECTS; +} + + + +static void savageDDDrawBuffer(GLcontext *ctx, GLenum mode ) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + + /* + * _DrawDestMask is easier to cope with than <mode>. + */ + switch ( ctx->Color._DrawDestMask ) { + case FRONT_LEFT_BIT: + imesa->IsDouble = GL_FALSE; + + if(imesa->IsFullScreen) + { + imesa->drawMap = (char *)imesa->apertureBase[TARGET_FRONT]; + imesa->readMap = (char *)imesa->apertureBase[TARGET_FRONT]; + } + else + { + imesa->drawMap = (char *)imesa->apertureBase[TARGET_BACK]; + imesa->readMap = (char *)imesa->apertureBase[TARGET_BACK]; + } + imesa->NotFirstFrame = GL_FALSE; + imesa->dirty |= SAVAGE_UPLOAD_BUFFERS; + savageXMesaSetFrontClipRects( imesa ); + FALLBACK( ctx, SAVAGE_FALLBACK_DRAW_BUFFER, GL_FALSE ); + break; + case BACK_LEFT_BIT: + imesa->IsDouble = GL_TRUE; + imesa->drawMap = (char *)imesa->apertureBase[TARGET_BACK]; + imesa->readMap = (char *)imesa->apertureBase[TARGET_BACK]; + imesa->NotFirstFrame = GL_FALSE; + imesa->dirty |= SAVAGE_UPLOAD_BUFFERS; + savageXMesaSetBackClipRects( imesa ); + FALLBACK( ctx, SAVAGE_FALLBACK_DRAW_BUFFER, GL_FALSE ); + break; + default: + FALLBACK( ctx, SAVAGE_FALLBACK_DRAW_BUFFER, GL_TRUE ); + return; + } + + /* We want to update the s/w rast state too so that r200SetBuffer() (?) + * gets called. + */ + _swrast_DrawBuffer(ctx, mode); +} + +static void savageDDReadBuffer(GLcontext *ctx, GLenum mode ) +{ + /* nothing, until we implement h/w glRead/CopyPixels or CopyTexImage */ +} + +#if 0 +static void savageDDSetColor(GLcontext *ctx, + GLubyte r, GLubyte g, + GLubyte b, GLubyte a ) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + imesa->MonoColor = savagePackColor( imesa->savageScreen->frontFormat, r, g, b, a ); +} +#endif + +/* ============================================================= + * Window position and viewport transformation + */ + +static void savageCalcViewport( GLcontext *ctx ) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + const GLfloat *v = ctx->Viewport._WindowMap.m; + GLfloat *m = imesa->hw_viewport; + + /* See also mga_translate_vertex. + */ + m[MAT_SX] = v[MAT_SX]; + m[MAT_TX] = v[MAT_TX] + imesa->drawX + SUBPIXEL_X; + m[MAT_SY] = - v[MAT_SY]; + m[MAT_TY] = - v[MAT_TY] + imesa->driDrawable->h + imesa->drawY + SUBPIXEL_Y; + m[MAT_SZ] = v[MAT_SZ] * imesa->depth_scale; + m[MAT_TZ] = v[MAT_TZ] * imesa->depth_scale; + + imesa->SetupNewInputs = ~0; +} + +static void savageViewport( GLcontext *ctx, + GLint x, GLint y, + GLsizei width, GLsizei height ) +{ + savageCalcViewport( ctx ); +} + +static void savageDepthRange( GLcontext *ctx, + GLclampd nearval, GLclampd farval ) +{ + savageCalcViewport( ctx ); +} + + +/* ============================================================= + * Miscellaneous + */ + +static void savageDDClearColor(GLcontext *ctx, + const GLfloat color[4] ) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + GLubyte c[4]; + CLAMPED_FLOAT_TO_UBYTE(c[0], color[0]); + CLAMPED_FLOAT_TO_UBYTE(c[1], color[1]); + CLAMPED_FLOAT_TO_UBYTE(c[2], color[2]); + CLAMPED_FLOAT_TO_UBYTE(c[3], color[3]); + + imesa->ClearColor = savagePackColor( imesa->savageScreen->frontFormat, + c[0], c[1], c[2], c[3] ); +} + +/* Fallback to swrast for select and feedback. + */ +static void savageRenderMode( GLcontext *ctx, GLenum mode ) +{ + FALLBACK( ctx, SAVAGE_FALLBACK_RENDERMODE, (mode != GL_RENDER) ); +} + + +#if HW_CULL + +/* ============================================================= + * Culling - the savage isn't quite as clean here as the rest of + * its interfaces, but it's not bad. + */ +static void savageDDCullFaceFrontFace(GLcontext *ctx, GLenum unused) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + GLuint cullMode=imesa->LcsCullMode; + switch (ctx->Polygon.CullFaceMode) + { + case GL_FRONT: + switch (ctx->Polygon.FrontFace) + { + case GL_CW: + cullMode = BCM_CW; + break; + case GL_CCW: + cullMode = BCM_CCW; + break; + } + break; + + case GL_BACK: + switch (ctx->Polygon.FrontFace) + { + case GL_CW: + cullMode = BCM_CCW; + break; + case GL_CCW: + cullMode = BCM_CW; + break; + } + break; + } + imesa->LcsCullMode = cullMode; +} +#endif /* end #if HW_CULL */ + +static void savageUpdateCull( GLcontext *ctx ) +{ +#if HW_CULL + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + GLuint cullMode; + if (ctx->Polygon.CullFlag && + imesa->raster_primitive == GL_TRIANGLES && + ctx->Polygon.CullFaceMode != GL_FRONT_AND_BACK) + cullMode = imesa->LcsCullMode; + else + cullMode = BCM_None; + if (imesa->savageScreen->chipset >= S3_SAVAGE4) { + if (imesa->Registers.DrawCtrl1.ni.cullMode != cullMode) { + imesa->Registers.DrawCtrl1.ni.cullMode = cullMode; + imesa->Registers.changed.ni.fDrawCtrl1Changed = GL_TRUE; + imesa->dirty |= SAVAGE_UPLOAD_CTX; + } + } else { + if (imesa->Registers.DrawCtrl.ni.cullMode != cullMode) { + imesa->Registers.DrawCtrl.ni.cullMode = cullMode; + imesa->Registers.changed.ni.fDrawCtrlChanged = GL_TRUE; + imesa->dirty |= SAVAGE_UPLOAD_CTX; + } + } +#endif /* end #if HW_CULL */ +} + + + +/* ============================================================= + * Color masks + */ + +/* Mesa calls this from the wrong place - it is called a very large + * number of redundant times. + * + * Colormask can be simulated by multipass or multitexture techniques. + */ +static void savageDDColorMask_s4(GLcontext *ctx, + GLboolean r, GLboolean g, + GLboolean b, GLboolean a ) +{ + savageContextPtr imesa = SAVAGE_CONTEXT( ctx ); + GLuint enable; + + if (ctx->Visual.alphaBits) + { + enable = b | g | r | a; + } + else + { + enable = b | g | r; + } + + if (enable) + { + if (imesa->Registers.DrawLocalCtrl.ni.drawUpdateEn == GL_FALSE) + { + imesa->Registers.DrawLocalCtrl.ni.drawUpdateEn = GL_TRUE; + imesa->Registers.changed.ni.fDrawLocalCtrlChanged = GL_TRUE; + imesa->dirty |= SAVAGE_UPLOAD_CTX; + } + } + else + { + if (imesa->Registers.DrawLocalCtrl.ni.drawUpdateEn) + { + imesa->Registers.DrawLocalCtrl.ni.drawUpdateEn = GL_FALSE; + imesa->Registers.changed.ni.fDrawLocalCtrlChanged = GL_TRUE; + imesa->dirty |= SAVAGE_UPLOAD_CTX; + } + } + /* TODO: need a software fallback */ +} +static void savageDDColorMask_s3d(GLcontext *ctx, + GLboolean r, GLboolean g, + GLboolean b, GLboolean a ) +{ + savageContextPtr imesa = SAVAGE_CONTEXT( ctx ); + GLuint enable; + + if (ctx->Visual.alphaBits) + { + enable = b | g | r | a; + } + else + { + enable = b | g | r; + } + + if (enable) + { + if (imesa->Registers.ZBufCtrl.s3d.drawUpdateEn == GL_FALSE) + { + imesa->Registers.ZBufCtrl.s3d.drawUpdateEn = GL_TRUE; + imesa->Registers.changed.ni.fZBufCtrlChanged = GL_TRUE; + imesa->dirty |= SAVAGE_UPLOAD_CTX; + } + } + else + { + if (imesa->Registers.ZBufCtrl.s3d.drawUpdateEn) + { + imesa->Registers.ZBufCtrl.s3d.drawUpdateEn = GL_FALSE; + imesa->Registers.changed.ni.fZBufCtrlChanged = GL_TRUE; + imesa->dirty |= SAVAGE_UPLOAD_CTX; + } + } + /* TODO: need a software fallback */ +} + +/* Seperate specular not fully implemented in hardware... Needs + * some interaction with material state? Just punt to software + * in all cases? + * FK: Don't fall back for now. Let's see the failure cases and + * fix them the right way. I don't see how this could be a + * hardware limitation. + */ +static void savageUpdateSpecular_s4(GLcontext *ctx) { + savageContextPtr imesa = SAVAGE_CONTEXT( ctx ); + + if (ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR && + ctx->Light.Enabled) { + if (imesa->Registers.DrawLocalCtrl.ni.specShadeEn == GL_FALSE) { + imesa->Registers.DrawLocalCtrl.ni.specShadeEn = GL_TRUE; + imesa->Registers.changed.ni.fDrawLocalCtrlChanged = GL_TRUE; + } + /*FALLBACK (ctx, SAVAGE_FALLBACK_SPECULAR, GL_TRUE);*/ + } else { + if (imesa->Registers.DrawLocalCtrl.ni.specShadeEn == GL_TRUE) { + imesa->Registers.DrawLocalCtrl.ni.specShadeEn = GL_FALSE; + imesa->Registers.changed.ni.fDrawLocalCtrlChanged = GL_TRUE; + } + /*FALLBACK (ctx, SAVAGE_FALLBACK_SPECULAR, GL_FALSE);*/ + } +} +static void savageUpdateSpecular_s3d(GLcontext *ctx) { + savageContextPtr imesa = SAVAGE_CONTEXT( ctx ); + + if (ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR && + ctx->Light.Enabled) { + if (imesa->Registers.DrawCtrl.ni.specShadeEn == GL_FALSE) { + imesa->Registers.DrawCtrl.ni.specShadeEn = GL_TRUE; + imesa->Registers.changed.ni.fDrawCtrlChanged = GL_TRUE; + } + FALLBACK (ctx, SAVAGE_FALLBACK_SPECULAR, GL_TRUE); + } else { + if (imesa->Registers.DrawCtrl.ni.specShadeEn == GL_TRUE) { + imesa->Registers.DrawCtrl.ni.specShadeEn = GL_FALSE; + imesa->Registers.changed.ni.fDrawCtrlChanged = GL_TRUE; + } + FALLBACK (ctx, SAVAGE_FALLBACK_SPECULAR, GL_FALSE); + } +} + +static void savageDDLightModelfv_s4(GLcontext *ctx, GLenum pname, + const GLfloat *param) +{ + savageUpdateSpecular_s4 (ctx); +} +static void savageDDLightModelfv_s3d(GLcontext *ctx, GLenum pname, + const GLfloat *param) +{ + savageUpdateSpecular_s3d (ctx); +} + +static void savageDDShadeModel_s4(GLcontext *ctx, GLuint mod) +{ + savageContextPtr imesa = SAVAGE_CONTEXT( ctx ); + + if (mod == GL_SMOOTH) + { + if(imesa->Registers.DrawLocalCtrl.ni.flatShadeEn == GL_TRUE) + { + imesa->Registers.DrawLocalCtrl.ni.flatShadeEn = GL_FALSE; + imesa->Registers.changed.ni.fDrawLocalCtrlChanged = GL_TRUE; + imesa->dirty |= SAVAGE_UPLOAD_CTX; + } + } + else + { + if(imesa->Registers.DrawLocalCtrl.ni.flatShadeEn == GL_FALSE) + { + imesa->Registers.DrawLocalCtrl.ni.flatShadeEn = GL_TRUE; + imesa->Registers.changed.ni.fDrawLocalCtrlChanged = GL_TRUE; + imesa->dirty |= SAVAGE_UPLOAD_CTX; + } + } +} +static void savageDDShadeModel_s3d(GLcontext *ctx, GLuint mod) +{ + savageContextPtr imesa = SAVAGE_CONTEXT( ctx ); + + if (mod == GL_SMOOTH) + { + if(imesa->Registers.DrawCtrl.ni.flatShadeEn == GL_TRUE) + { + imesa->Registers.DrawCtrl.ni.flatShadeEn = GL_FALSE; + imesa->Registers.changed.ni.fDrawCtrlChanged = GL_TRUE; + imesa->dirty |= SAVAGE_UPLOAD_CTX; + } + } + else + { + if(imesa->Registers.DrawCtrl.ni.flatShadeEn == GL_FALSE) + { + imesa->Registers.DrawCtrl.ni.flatShadeEn = GL_TRUE; + imesa->Registers.changed.ni.fDrawCtrlChanged = GL_TRUE; + imesa->dirty |= SAVAGE_UPLOAD_CTX; + } + } +} + + +/* ============================================================= + * Fog + */ + +static void savageDDFogfv(GLcontext *ctx, GLenum pname, const GLfloat *param) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + GLuint fogClr; + + /*if ((ctx->Fog.Enabled) &&(pname == GL_FOG_COLOR))*/ + if (ctx->Fog.Enabled) + { + fogClr = (((GLubyte)(ctx->Fog.Color[0]*255.0F) << 16) | + ((GLubyte)(ctx->Fog.Color[1]*255.0F) << 8) | + ((GLubyte)(ctx->Fog.Color[2]*255.0F) << 0)); + if (imesa->Registers.FogCtrl.ni.fogEn != GL_TRUE) + { + imesa->Registers.FogCtrl.ni.fogEn = GL_TRUE; + imesa->Registers.changed.ni.fFogCtrlChanged = GL_TRUE; + } + /*cheap fog*/ + if (imesa->Registers.FogCtrl.ni.fogMode != GL_TRUE) + { + imesa->Registers.FogCtrl.ni.fogMode = GL_TRUE; + imesa->Registers.changed.ni.fFogCtrlChanged = GL_TRUE; + } + if (imesa->Registers.FogCtrl.ni.fogClr != fogClr) + { + imesa->Registers.FogCtrl.ni.fogClr = fogClr; + imesa->Registers.changed.ni.fFogCtrlChanged = GL_TRUE; + } + imesa->dirty |= SAVAGE_UPLOAD_CTX; + } + else + { + /*No fog*/ + + if (imesa->Registers.FogCtrl.ni.fogEn != 0) + { + imesa->Registers.FogCtrl.ni.fogEn = 0; + imesa->Registers.FogCtrl.ni.fogMode = 0; + imesa->Registers.changed.ni.fFogCtrlChanged = GL_TRUE; + } + return; + } +} + + +#if HW_STENCIL +static void savageStencilFunc(GLcontext *); + +static void savageDDStencilFunc(GLcontext *ctx, GLenum func, GLint ref, + GLuint mask) +{ + savageStencilFunc(ctx); +} + +static void savageDDStencilMask(GLcontext *ctx, GLuint mask) +{ + savageStencilFunc(ctx); +} + +static void savageDDStencilOp(GLcontext *ctx, GLenum fail, GLenum zfail, + GLenum zpass) +{ + savageStencilFunc(ctx); +} + +static void savageStencilFunc(GLcontext *ctx) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + Reg_StencilCtrl StencilCtrl; + int a=0; + + StencilCtrl.ui = 0x0; + + if (ctx->Stencil.Enabled) + { + + switch (ctx->Stencil.Function[0]) + { + case GL_NEVER: a = LCS_S_NEVER; break; + case GL_ALWAYS: a = LCS_S_ALWAYS; break; + case GL_LESS: a = LCS_S_LESS; break; + case GL_LEQUAL: a = LCS_S_LEQUAL; break; + case GL_EQUAL: a = LCS_S_EQUAL; break; + case GL_GREATER: a = LCS_S_GREATER; break; + case GL_GEQUAL: a = LCS_S_GEQUAL; break; + case GL_NOTEQUAL: a = LCS_S_NOTEQUAL; break; + default: + break; + } + + StencilCtrl.ni.cmpFunc = (GLuint)a & 0x0F; + StencilCtrl.ni.stencilEn = GL_TRUE; + StencilCtrl.ni.readMask = ctx->Stencil.ValueMask[0]; + StencilCtrl.ni.writeMask = ctx->Stencil.WriteMask[0]; + + switch (ctx->Stencil.FailFunc[0]) + { + case GL_KEEP: + StencilCtrl.ni.failOp = STC_FAIL_Keep; + break; + case GL_ZERO: + StencilCtrl.ni.failOp = STC_FAIL_Zero; + break; + case GL_REPLACE: + StencilCtrl.ni.failOp = STC_FAIL_Equal; + break; + case GL_INCR: + StencilCtrl.ni.failOp = STC_FAIL_IncClamp; + break; + case GL_DECR: + StencilCtrl.ni.failOp = STC_FAIL_DecClamp; + break; + case GL_INVERT: + StencilCtrl.ni.failOp = STC_FAIL_Invert; + break; +#if GL_EXT_stencil_wrap + case GL_INCR_WRAP_EXT: + StencilCtrl.ni.failOp = STC_FAIL_Inc; + break; + case GL_DECR_WRAP_EXT: + StencilCtrl.ni.failOp = STC_FAIL_Dec; + break; +#endif + } + + switch (ctx->Stencil.ZFailFunc[0]) + { + case GL_KEEP: + StencilCtrl.ni.passZfailOp = STC_FAIL_Keep; + break; + case GL_ZERO: + StencilCtrl.ni.passZfailOp = STC_FAIL_Zero; + break; + case GL_REPLACE: + StencilCtrl.ni.passZfailOp = STC_FAIL_Equal; + break; + case GL_INCR: + StencilCtrl.ni.passZfailOp = STC_FAIL_IncClamp; + break; + case GL_DECR: + StencilCtrl.ni.passZfailOp = STC_FAIL_DecClamp; + break; + case GL_INVERT: + StencilCtrl.ni.passZfailOp = STC_FAIL_Invert; + break; +#if GL_EXT_stencil_wrap + case GL_INCR_WRAP_EXT: + StencilCtrl.ni.passZfailOp = STC_FAIL_Inc; + break; + case GL_DECR_WRAP_EXT: + StencilCtrl.ni.passZfailOp = STC_FAIL_Dec; + break; +#endif + } + + switch (ctx->Stencil.ZPassFunc[0]) + { + case GL_KEEP: + StencilCtrl.ni.passZpassOp = STC_FAIL_Keep; + break; + case GL_ZERO: + StencilCtrl.ni.passZpassOp = STC_FAIL_Zero; + break; + case GL_REPLACE: + StencilCtrl.ni.passZpassOp = STC_FAIL_Equal; + break; + case GL_INCR: + StencilCtrl.ni.passZpassOp = STC_FAIL_IncClamp; + break; + case GL_DECR: + StencilCtrl.ni.passZpassOp = STC_FAIL_DecClamp; + break; + case GL_INVERT: + StencilCtrl.ni.passZpassOp = STC_FAIL_Invert; + break; +#if GL_EXT_stencil_wrap + case GL_INCR_WRAP_EXT: + StencilCtrl.ni.passZpassOp = STC_FAIL_Inc; + break; + case GL_DECR_WRAP_EXT: + StencilCtrl.ni.passZpassOp = STC_FAIL_Dec; + break; +#endif + } + + + if (imesa->Registers.StencilCtrl.ui != StencilCtrl.ui) + { + imesa->Registers.StencilCtrl.ui = StencilCtrl.ui; + imesa->Registers.changed.ni.fStencilCtrlChanged = GL_TRUE; + } + + if (imesa->Registers.ZBufCtrl.s4.stencilRefVal != (GLuint) ctx->Stencil.Ref) { + imesa->Registers.ZBufCtrl.s4.stencilRefVal = ctx->Stencil.Ref[0]; + imesa->Registers.changed.ni.fZBufCtrlChanged = GL_TRUE; + } + + /* + * force Z on, HW limitation + */ + + if (imesa->Registers.ZBufCtrl.s4.zBufEn != GL_TRUE) + { + imesa->Registers.ZBufCtrl.s4.zCmpFunc = LCS_Z_ALWAYS & 0x0F; + imesa->Registers.ZBufCtrl.s4.zBufEn = GL_TRUE; + imesa->Registers.changed.ni.fZBufCtrlChanged = GL_TRUE; + imesa->Registers.DrawLocalCtrl.ni.zUpdateEn = GL_FALSE; + imesa->Registers.changed.ni.fDrawLocalCtrlChanged = GL_TRUE; + } + imesa->dirty |= SAVAGE_UPLOAD_CTX; + } + else + { + if (imesa->Registers.StencilCtrl.ni.stencilEn != GL_FALSE) + { + imesa->Registers.StencilCtrl.ni.stencilEn = GL_FALSE; + imesa->Registers.changed.ni.fStencilCtrlChanged = GL_TRUE; + } + } +} +#endif /* end #if HW_STENCIL */ +/* ============================================================= + */ + +static void savageDDEnable_s4(GLcontext *ctx, GLenum cap, GLboolean state) +{ + + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + unsigned int ui; + switch(cap) { + case GL_ALPHA_TEST: + /* we should consider the disable case*/ + imesa->dirty |= SAVAGE_UPLOAD_CTX; + savageBlendFunc_s4(ctx); + break; + case GL_BLEND: + imesa->dirty |= SAVAGE_UPLOAD_CTX; + /*Can't find Enable bit in the 3D registers.*/ + /* For some reason enable(GL_BLEND) affects ColorLogicOpEnabled. + */ + FALLBACK (ctx, SAVAGE_FALLBACK_LOGICOP, + (ctx->Color.ColorLogicOpEnabled && + ctx->Color.LogicOp != GL_COPY)); + /*add the savageBlendFunc 2001/11/25 + * if call no such function, then glDisable(GL_BLEND) will do noting, + *our chip has no disable bit + */ + savageBlendFunc_s4(ctx); + break; + case GL_DEPTH_TEST: + imesa->dirty |= SAVAGE_UPLOAD_CTX; + savageDDDepthFunc_s4(ctx,ctx->Depth.Func); + break; + case GL_SCISSOR_TEST: + imesa->scissor = state; + imesa->dirty |= SAVAGE_UPLOAD_CLIPRECTS; + break; +#if 0 + case GL_LINE_SMOOTH: + if (ctx->PB->primitive == GL_LINE) { + imesa->dirty |= SAVAGE_UPLOAD_CTX; + if (state) { + ui=imesa->Registers.DrawLocalCtrl.ui; + imesa->Registers.DrawLocalCtrl.ni.flatShadeEn=GL_TRUE; + if(imesa->Registers.DrawLocalCtrl.ui!=ui) + imesa->Registers.changed.ni.fDrawLocalCtrlChanged=GL_TRUE; + } + } + break; + case GL_POINT_SMOOTH: + if (ctx->PB->primitive == GL_POINT) { + imesa->dirty |= SAVAGE_UPLOAD_CTX; + if (state) + { + ui=imesa->Registers.DrawLocalCtrl.ui; + imesa->Registers.DrawLocalCtrl.ni.flatShadeEn=GL_FALSE; + if(imesa->Registers.DrawLocalCtrl.ui!=ui) + imesa->Registers.changed.ni.fDrawLocalCtrlChanged=GL_TRUE; + } + } + break; + case GL_POLYGON_SMOOTH: + if (ctx->PB->primitive == GL_POLYGON) { + imesa->dirty |= SAVAGE_UPLOAD_CTX; + if (state) { + ui=imesa->Registers.DrawLocalCtrl.ui; + imesa->Registers.DrawLocalCtrl.ni.flatShadeEn=GL_TRUE; + if(imesa->Registers.DrawLocalCtrl.ui!=ui) + imesa->Registers.changed.ni.fDrawLocalCtrlChanged=GL_TRUE; + } + } + break; +#endif + case GL_STENCIL_TEST: + imesa->dirty |= SAVAGE_UPLOAD_CTX; + if (state) + { +#if HW_STENCIL + if(imesa->hw_stencil) + { + ui=imesa->Registers.StencilCtrl.ui; +#endif /* end if HW_STENCIL */ + if(!imesa->hw_stencil) + FALLBACK (ctx, SAVAGE_FALLBACK_STENCIL, GL_TRUE); + +#if HW_STENCIL + imesa->Registers.StencilCtrl.ni.stencilEn=GL_TRUE; + if(imesa->Registers.StencilCtrl.ui!=ui) + imesa->Registers.changed.ni.fStencilCtrlChanged=GL_TRUE; + } +#endif /* end if HW_STENCIL */ + } + + else + { +#if HW_STENCIL + if(imesa->hw_stencil) + { + if(imesa->Registers.StencilCtrl.ni.stencilEn == GL_TRUE) + { + imesa->Registers.StencilCtrl.ni.stencilEn=GL_FALSE; + imesa->Registers.changed.ni.fStencilCtrlChanged=GL_TRUE; + } + } + FALLBACK (ctx, SAVAGE_FALLBACK_STENCIL, GL_FALSE); +#endif + } + break; + case GL_FOG: + imesa->dirty |= SAVAGE_UPLOAD_CTX; + savageDDFogfv(ctx,0,0); + break; + case GL_CULL_FACE: +#if HW_CULL + imesa->dirty |= SAVAGE_UPLOAD_CTX; + ui=imesa->Registers.DrawCtrl1.ui; + if (state) + { + savageDDCullFaceFrontFace(ctx,0); + } + else + { + imesa->Registers.DrawCtrl1.ni.cullMode=BCM_None; + } + if(imesa->Registers.DrawCtrl1.ui!=ui) + imesa->Registers.changed.ni.fDrawCtrl1Changed=GL_TRUE; +#endif + break; + case GL_DITHER: + imesa->dirty |= SAVAGE_UPLOAD_CTX; + if (state) + { + if ( ctx->Color.DitherFlag ) + { + ui=imesa->Registers.DrawCtrl1.ui; + imesa->Registers.DrawCtrl1.ni.ditherEn=GL_TRUE; + if(imesa->Registers.DrawCtrl1.ui!=ui) + imesa->Registers.changed.ni.fDrawCtrl1Changed=GL_TRUE; + } + } + if (!ctx->Color.DitherFlag ) + { + ui=imesa->Registers.DrawCtrl1.ui; + imesa->Registers.DrawCtrl1.ni.ditherEn=GL_FALSE; + if(imesa->Registers.DrawCtrl1.ui!=ui) + imesa->Registers.changed.ni.fDrawCtrl1Changed=GL_TRUE; + } + break; + + case GL_LIGHTING: + savageUpdateSpecular_s4 (ctx); + break; + case GL_TEXTURE_1D: + case GL_TEXTURE_3D: + imesa->new_state |= SAVAGE_NEW_TEXTURE; + break; + case GL_TEXTURE_2D: + imesa->new_state |= SAVAGE_NEW_TEXTURE; + break; + default: + ; + } +} +static void savageDDEnable_s3d(GLcontext *ctx, GLenum cap, GLboolean state) +{ + + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + unsigned int ui; + switch(cap) { + case GL_ALPHA_TEST: + /* we should consider the disable case*/ + imesa->dirty |= SAVAGE_UPLOAD_CTX; + savageBlendFunc_s3d(ctx); + break; + case GL_BLEND: + imesa->dirty |= SAVAGE_UPLOAD_CTX; + /*Can't find Enable bit in the 3D registers.*/ + /* For some reason enable(GL_BLEND) affects ColorLogicOpEnabled. + */ + FALLBACK (ctx, SAVAGE_FALLBACK_LOGICOP, + (ctx->Color.ColorLogicOpEnabled && + ctx->Color.LogicOp != GL_COPY)); + /*add the savageBlendFunc 2001/11/25 + * if call no such function, then glDisable(GL_BLEND) will do noting, + *our chip has no disable bit + */ + savageBlendFunc_s3d(ctx); + break; + case GL_DEPTH_TEST: + imesa->dirty |= SAVAGE_UPLOAD_CTX; + savageDDDepthFunc_s3d(ctx,ctx->Depth.Func); + break; + case GL_SCISSOR_TEST: + imesa->scissor = state; + imesa->dirty |= SAVAGE_UPLOAD_CLIPRECTS; + break; + case GL_FOG: + imesa->dirty |= SAVAGE_UPLOAD_CTX; + savageDDFogfv(ctx,0,0); + break; + case GL_CULL_FACE: +#if HW_CULL + imesa->dirty |= SAVAGE_UPLOAD_CTX; + ui=imesa->Registers.DrawCtrl.ui; + if (state) + { + savageDDCullFaceFrontFace(ctx,0); + } + else + { + imesa->Registers.DrawCtrl.ni.cullMode=BCM_None; + } + if(imesa->Registers.DrawCtrl.ui!=ui) + imesa->Registers.changed.ni.fDrawCtrlChanged=GL_TRUE; +#endif + break; + case GL_DITHER: + imesa->dirty |= SAVAGE_UPLOAD_CTX; + if (state) + { + if ( ctx->Color.DitherFlag ) + { + ui=imesa->Registers.DrawCtrl.ui; + imesa->Registers.DrawCtrl.ni.ditherEn=GL_TRUE; + if(imesa->Registers.DrawCtrl.ui!=ui) + imesa->Registers.changed.ni.fDrawCtrlChanged=GL_TRUE; + } + } + if (!ctx->Color.DitherFlag ) + { + ui=imesa->Registers.DrawCtrl.ui; + imesa->Registers.DrawCtrl.ni.ditherEn=GL_FALSE; + if(imesa->Registers.DrawCtrl.ui!=ui) + imesa->Registers.changed.ni.fDrawCtrlChanged=GL_TRUE; + } + break; + + case GL_LIGHTING: + savageUpdateSpecular_s3d (ctx); + break; + case GL_TEXTURE_1D: + case GL_TEXTURE_3D: + imesa->new_state |= SAVAGE_NEW_TEXTURE; + break; + case GL_TEXTURE_2D: + imesa->new_state |= SAVAGE_NEW_TEXTURE; + break; + default: + ; + } +} + +void savageDDUpdateHwState( GLcontext *ctx ) +{ + savageContextPtr imesa = SAVAGE_CONTEXT(ctx); + + if(imesa->driDrawable) + { + LOCK_HARDWARE(imesa); + } + + if (imesa->new_state & SAVAGE_NEW_TEXTURE) { + savageUpdateTextureState( ctx ); + } + if((imesa->dirty!=0)|| (imesa->new_state!=0)) + { + savageEmitHwStateLocked(imesa); + imesa->new_state = 0; + } + if(imesa->driDrawable) + { + UNLOCK_HARDWARE(imesa); + } +} + + +void savageEmitDrawingRectangle( savageContextPtr imesa ) +{ + __DRIdrawablePrivate *dPriv = imesa->driDrawable; + savageScreenPrivate *savageScreen = imesa->savageScreen; + XF86DRIClipRectPtr pbox; + int nbox; + + + int x0 = imesa->drawX; + int y0 = imesa->drawY; + int x1 = x0 + dPriv->w; + int y1 = y0 + dPriv->h; + + pbox = dPriv->pClipRects; + nbox = dPriv->numClipRects; + + + + /* Coordinate origin of the window - may be offscreen. + */ + /* imesa->BufferSetup[SAVAGE_DESTREG_DR4] = ((y0<<16) | + (((unsigned)x0)&0xFFFF));*/ + + /* Clip to screen. + */ + if (x0 < 0) x0 = 0; + if (y0 < 0) y0 = 0; + if (x1 > savageScreen->width) x1 = savageScreen->width; + if (y1 > savageScreen->height) y1 = savageScreen->height; + + + if(nbox == 1) + { + imesa->draw_rect.x1 = MAX2(x0,pbox->x1); + imesa->draw_rect.y1 = MAX2(y0,pbox->y1); + imesa->draw_rect.x2 = MIN2(x1,pbox->x2); + imesa->draw_rect.y2 = MIN2(y1,pbox->y2); + } + else + { + imesa->draw_rect.x1 = x0; + imesa->draw_rect.y1 = y0; + imesa->draw_rect.x2 = x1; + imesa->draw_rect.y2 = y1; + } + + imesa->Registers.changed.ni.fScissorsChanged=GL_TRUE; + + /* imesa->Registers.changed.ni.fDrawCtrl0Changed=GL_TRUE; + imesa->Registers.changed.ni.fDrawCtrl1Changed=GL_TRUE;*/ + + + imesa->dirty |= SAVAGE_UPLOAD_BUFFERS; +} + + +static void savageDDPrintDirty( const char *msg, GLuint state ) +{ + fprintf(stderr, "%s (0x%x): %s%s%s%s%s\n", + msg, + (unsigned int) state, + (state & SAVAGE_UPLOAD_TEX0IMAGE) ? "upload-tex0, " : "", + (state & SAVAGE_UPLOAD_TEX1IMAGE) ? "upload-tex1, " : "", + (state & SAVAGE_UPLOAD_CTX) ? "upload-ctx, " : "", + (state & SAVAGE_UPLOAD_BUFFERS) ? "upload-bufs, " : "", + (state & SAVAGE_UPLOAD_CLIPRECTS) ? "upload-cliprects, " : "" + ); +} + + + +static void savageUpdateRegister_s4(savageContextPtr imesa) +{ + GLuint *pBCIBase; + pBCIBase = savageDMAAlloc (imesa, 100); + /* + *make sure there is enough room for everything + */ + /*savageKickDMA(imesa);*/ +#define PARAMT 1 +#if defined(PARAMT) && PARAMT +#define GLOBAL_REG SAVAGE_GLOBAL_CHANGED +#else +#define GLOBAL_REG (SAVAGE_GLOBAL_CHANGED | SAVAGE_TEXTURE_CHANGED) +#endif + if (imesa->Registers.changed.uiRegistersChanged & GLOBAL_REG) + { + WRITE_CMD(pBCIBase,WAIT_3D_IDLE,GLuint); + } + + if (imesa->Registers.changed.ni.fTexPalAddrChanged) + { + WRITE_CMD(pBCIBase, SET_REGISTER(SAVAGE_TEXPALADDR_S4, 1),GLuint); + WRITE_CMD(pBCIBase, imesa->Registers.TexPalAddr.ui,GLuint); + } + + if (imesa->Registers.changed.uiRegistersChanged & 0xFC) + { + WRITE_CMD(pBCIBase, SET_REGISTER(SAVAGE_TEXCTRL0_S4, 6),GLuint); + WRITE_CMD(pBCIBase, imesa->Registers.TexCtrl[0].ui,GLuint); + WRITE_CMD(pBCIBase, imesa->Registers.TexCtrl[1].ui,GLuint); + WRITE_CMD(pBCIBase, imesa->Registers.TexAddr[0].ui,GLuint); + WRITE_CMD(pBCIBase, imesa->Registers.TexAddr[1].ui,GLuint); + WRITE_CMD(pBCIBase, imesa->Registers.TexBlendCtrl[0].ui,GLuint); + WRITE_CMD(pBCIBase, imesa->Registers.TexBlendCtrl[1].ui,GLuint); + } + + if (imesa->Registers.changed.ni.fTexDescrChanged) + { + WRITE_CMD(pBCIBase, SET_REGISTER(SAVAGE_TEXDESCR_S4, 1),GLuint); + WRITE_CMD(pBCIBase, imesa->Registers.TexDescr.ui,GLuint); + imesa->Registers.TexDescr.s4.newPal = GL_FALSE; + } + + if (imesa->Registers.changed.ni.fFogCtrlChanged) + { + + WRITE_CMD(pBCIBase,SET_REGISTER(SAVAGE_FOGCTRL_S4, 1),GLuint); + WRITE_CMD(pBCIBase, imesa->Registers.FogCtrl.ui,GLuint); + } + + if (imesa->Registers.changed.ni.fDestCtrlChanged) + { + WRITE_CMD(pBCIBase , SET_REGISTER(SAVAGE_DESTCTRL_S4,1),GLuint); + WRITE_CMD( pBCIBase ,imesa->Registers.DestCtrl.ui,GLuint); + } + + if (imesa->Registers.changed.ni.fDrawLocalCtrlChanged) + { + WRITE_CMD(pBCIBase , SET_REGISTER(SAVAGE_DRAWLOCALCTRL_S4,1),GLuint); + WRITE_CMD(pBCIBase , imesa->Registers.DrawLocalCtrl.ui,GLuint); + } + /* + * Scissors updates drawctrl0 and drawctrl 1 + */ + + if (imesa->Registers.changed.ni.fScissorsChanged) + { + if(imesa->scissor) + { + imesa->Registers.DrawCtrl0.ni.scissorXStart = imesa->scissor_rect.x1; + imesa->Registers.DrawCtrl0.ni.scissorYStart = imesa->scissor_rect.y1; + imesa->Registers.DrawCtrl1.ni.scissorXEnd = imesa->scissor_rect.x2-1; + imesa->Registers.DrawCtrl1.ni.scissorYEnd = imesa->scissor_rect.y2-1; + } + else + { + imesa->Registers.DrawCtrl0.ni.scissorXStart = imesa->draw_rect.x1; + imesa->Registers.DrawCtrl0.ni.scissorYStart = imesa->draw_rect.y1; + imesa->Registers.DrawCtrl1.ni.scissorXEnd = imesa->draw_rect.x2-1; + imesa->Registers.DrawCtrl1.ni.scissorYEnd = imesa->draw_rect.y2-1; + } + + imesa->Registers.changed.ni.fDrawCtrl0Changed=GL_TRUE; + imesa->Registers.changed.ni.fDrawCtrl1Changed=GL_TRUE; + } + if (imesa->Registers.changed.uiRegistersChanged ) + { + + WRITE_CMD(pBCIBase , SET_REGISTER(SAVAGE_DRAWCTRLGLOBAL0_S4,2),GLuint); + WRITE_CMD(pBCIBase , imesa->Registers.DrawCtrl0.ui,GLuint); + WRITE_CMD(pBCIBase , imesa->Registers.DrawCtrl1.ui,GLuint); + + } + + if (imesa->Registers.changed.ni.fZBufCtrlChanged) + { + WRITE_CMD(pBCIBase , SET_REGISTER(SAVAGE_ZBUFCTRL_S4,1),GLuint); + WRITE_CMD(pBCIBase , imesa->Registers.ZBufCtrl.ui,GLuint); + } + + if (imesa->Registers.changed.ni.fStencilCtrlChanged) + { + WRITE_CMD(pBCIBase , SET_REGISTER(SAVAGE_STENCILCTRL_S4,1),GLuint); + WRITE_CMD(pBCIBase , imesa->Registers.StencilCtrl.ui,GLuint); + } + + if (imesa->Registers.changed.ni.fTexBlendColorChanged) + { + WRITE_CMD(pBCIBase , SET_REGISTER(SAVAGE_TEXBLENDCOLOR_S4,1),GLuint); + WRITE_CMD(pBCIBase , imesa->Registers.TexBlendColor.ui,GLuint); + } + + if (imesa->Registers.changed.ni.fZWatermarksChanged) + { + WRITE_CMD(pBCIBase , SET_REGISTER(SAVAGE_ZWATERMARK_S4,1),GLuint); + WRITE_CMD(pBCIBase , imesa->Registers.ZWatermarks.ui,GLuint); + } + + if (imesa->Registers.changed.ni.fDestTexWatermarksChanged) + { + WRITE_CMD(pBCIBase , SET_REGISTER(SAVAGE_DESTTEXRWWATERMARK_S4,1),GLuint); + WRITE_CMD(pBCIBase , imesa->Registers.DestTexWatermarks.ui,GLuint); + } + + imesa->Registers.changed.uiRegistersChanged = 0; + imesa->dirty=0; + savageDMACommit (imesa, pBCIBase); +} +static void savageUpdateRegister_s3d(savageContextPtr imesa) +{ + GLuint *pBCIBase; + pBCIBase = savageDMAAlloc (imesa, 100); + + /* Always wait for idle for now. + * FIXME: On the Savage3D individual fields in registers can be + * local/global. */ + WRITE_CMD(pBCIBase,WAIT_3D_IDLE,GLuint); + + if (imesa->Registers.changed.ni.fZBufCtrlChanged) + { + WRITE_CMD(pBCIBase , SET_REGISTER(SAVAGE_ZBUFCTRL_S3D,1),GLuint); + WRITE_CMD(pBCIBase , imesa->Registers.ZBufCtrl.ui,GLuint); + } + + if (imesa->Registers.changed.ni.fDestCtrlChanged) + { + WRITE_CMD(pBCIBase , SET_REGISTER(SAVAGE_DESTCTRL_S3D,1),GLuint); + WRITE_CMD( pBCIBase ,imesa->Registers.DestCtrl.ui,GLuint); + } + /* Better leave these alone. They don't seem to be needed and I + * don't know exactly what they ary good for. Changing them may + * have been responsible for lockups with texturing. */ +/* + if (imesa->Registers.changed.ni.fZWatermarksChanged) + { + WRITE_CMD(pBCIBase , SET_REGISTER(SAVAGE_ZWATERMARK_S3D,1),GLuint); + WRITE_CMD(pBCIBase , imesa->Registers.ZWatermarks.ui,GLuint); + } + if (imesa->Registers.changed.ni.fDestTexWatermarksChanged) + { + WRITE_CMD(pBCIBase , SET_REGISTER(SAVAGE_DESTTEXRWWATERMARK_S3D,1),GLuint); + WRITE_CMD(pBCIBase , imesa->Registers.DestTexWatermarks.ui,GLuint); + } +*/ + if (imesa->Registers.changed.ni.fDrawCtrlChanged) + { + /* Same as above. The utah-driver always sets these to true. + * Changing them definitely caused lockups with texturing. */ + imesa->Registers.DrawCtrl.ni.flushPdDestWrites = GL_TRUE; + imesa->Registers.DrawCtrl.ni.flushPdZbufWrites = GL_TRUE; + WRITE_CMD(pBCIBase , SET_REGISTER(SAVAGE_DRAWCTRL_S3D,1),GLuint); + WRITE_CMD(pBCIBase , imesa->Registers.DrawCtrl.ui,GLuint); + } + + if (imesa->Registers.changed.ni.fScissorsChanged) + { + if(imesa->scissor) + { + imesa->Registers.ScissorsStart.ni.scissorXStart = + imesa->scissor_rect.x1; + imesa->Registers.ScissorsStart.ni.scissorYStart = + imesa->scissor_rect.y1; + imesa->Registers.ScissorsEnd.ni.scissorXEnd = + imesa->scissor_rect.x2-1; + imesa->Registers.ScissorsEnd.ni.scissorYEnd = + imesa->scissor_rect.y2-1; + } + else + { + imesa->Registers.ScissorsStart.ni.scissorXStart = + imesa->draw_rect.x1; + imesa->Registers.ScissorsStart.ni.scissorYStart = + imesa->draw_rect.y1; + imesa->Registers.ScissorsEnd.ni.scissorXEnd = + imesa->draw_rect.x2-1; + imesa->Registers.ScissorsEnd.ni.scissorYEnd = + imesa->draw_rect.y2-1; + } + + imesa->Registers.changed.ni.fScissorsStartChanged=GL_TRUE; + imesa->Registers.changed.ni.fScissorsEndChanged=GL_TRUE; + } + if (imesa->Registers.changed.uiRegistersChanged & 0x00C00000) + { + WRITE_CMD(pBCIBase , SET_REGISTER(SAVAGE_SCSTART_S3D,2),GLuint); + WRITE_CMD(pBCIBase , imesa->Registers.ScissorsStart.ui,GLuint); + WRITE_CMD(pBCIBase , imesa->Registers.ScissorsEnd.ui,GLuint); + } + + if (imesa->Registers.changed.ni.fTex0CtrlChanged) + { + WRITE_CMD(pBCIBase, SET_REGISTER(SAVAGE_TEXCTRL_S3D, 1),GLuint); + WRITE_CMD(pBCIBase, imesa->Registers.TexCtrl[0].ui,GLuint); + } + + if (imesa->Registers.changed.ni.fFogCtrlChanged) + { + WRITE_CMD(pBCIBase,SET_REGISTER(SAVAGE_FOGCTRL_S3D, 1),GLuint); + WRITE_CMD(pBCIBase, imesa->Registers.FogCtrl.ui,GLuint); + } + + if (imesa->Registers.changed.ni.fTex0AddrChanged || + imesa->Registers.changed.ni.fTexDescrChanged) + { + WRITE_CMD(pBCIBase, SET_REGISTER(SAVAGE_TEXADDR_S3D, 1),GLuint); + WRITE_CMD(pBCIBase, imesa->Registers.TexAddr[0].ui,GLuint); + WRITE_CMD(pBCIBase, SET_REGISTER(SAVAGE_TEXDESCR_S3D, 1),GLuint); + WRITE_CMD(pBCIBase, imesa->Registers.TexDescr.ui,GLuint); + imesa->Registers.TexDescr.s3d.newPal = GL_FALSE; + } + + if (imesa->Registers.changed.ni.fTexPalAddrChanged) + { + WRITE_CMD(pBCIBase, SET_REGISTER(SAVAGE_TEXPALADDR_S3D, 1),GLuint); + WRITE_CMD(pBCIBase, imesa->Registers.TexPalAddr.ui,GLuint); + } + + imesa->Registers.changed.uiRegistersChanged = 0; + imesa->dirty=0; + savageDMACommit (imesa, pBCIBase); +} + + + +/* Push the state into the sarea and/or texture memory. + */ +void savageEmitHwStateLocked( savageContextPtr imesa ) +{ + if (SAVAGE_DEBUG & DEBUG_VERBOSE_API) + savageDDPrintDirty( "\n\n\nsavageEmitHwStateLocked", imesa->dirty ); + + if (imesa->dirty & ~SAVAGE_UPLOAD_CLIPRECTS) + { + if (imesa->dirty & (SAVAGE_UPLOAD_CTX | SAVAGE_UPLOAD_TEX0 | \ + SAVAGE_UPLOAD_TEX1 | SAVAGE_UPLOAD_BUFFERS)) + { + + SAVAGE_STATE_COPY(imesa); + /* update state to hw*/ + if (imesa->driDrawable &&imesa->driDrawable->numClipRects ==0 ) + { + return ; + } + if (imesa->savageScreen->chipset >= S3_SAVAGE4) + savageUpdateRegister_s4(imesa); + else + savageUpdateRegister_s3d(imesa); + } + + imesa->sarea->dirty |= (imesa->dirty & + ~(SAVAGE_UPLOAD_TEX1|SAVAGE_UPLOAD_TEX0)); + imesa->dirty &= SAVAGE_UPLOAD_CLIPRECTS; + } +} + + + +static void savageDDInitState_s4( savageContextPtr imesa ) +{ +#if 1 + *(GLuint *)&imesa->Registers.DestCtrl = 1<<7; +#else + *(GLuint *)&imesa->Registers.DestCtrl = 0; +#endif + *(GLuint *)&imesa->Registers.ZBufCtrl = 0; + + imesa->Registers.ZBufCtrl.s4.zCmpFunc = LCS_Z_LESS; + imesa->Registers.ZBufCtrl.s4.wToZEn = GL_TRUE; + /*imesa->Registers.ZBufCtrl.ni.floatZEn = GL_TRUE;*/ + *(GLuint *)&imesa->Registers.ZBufOffset = 0; + *(GLuint *)&imesa->Registers.FogCtrl = 0; + imesa->Registers.FogTable.ni.ulEntry[0] = 0; + imesa->Registers.FogTable.ni.ulEntry[1] = 0; + imesa->Registers.FogTable.ni.ulEntry[2] = 0; + imesa->Registers.FogTable.ni.ulEntry[3] = 0; + imesa->Registers.FogTable.ni.ulEntry[4] = 0; + imesa->Registers.FogTable.ni.ulEntry[5] = 0; + imesa->Registers.FogTable.ni.ulEntry[6] = 0; + imesa->Registers.FogTable.ni.ulEntry[7] = 0; + *(GLuint *)&imesa->Registers.TexDescr = 0; + imesa->Registers.TexAddr[0].ui = 0; + imesa->Registers.TexAddr[1].ui = 0; + imesa->Registers.TexPalAddr.ui = 0; + *(GLuint *)&imesa->Registers.TexCtrl[0] = 0; + *(GLuint *)&imesa->Registers.TexCtrl[1] = 0; + imesa->Registers.TexBlendCtrl[0].ui = TBC_NoTexMap; + imesa->Registers.TexBlendCtrl[1].ui = TBC_NoTexMap1; + *(GLuint *)&imesa->Registers.DrawCtrl0 = 0; +#if 1/*def __GL_HALF_PIXEL_OFFSET*/ + *(GLuint *)&imesa->Registers.DrawCtrl1 = 0; +#else + *(GLuint *)&imesa->Registers.DrawCtrl1 = 1<<11; +#endif + *(GLuint *)&imesa->Registers.DrawLocalCtrl = 0; + *(GLuint *)&imesa->Registers.StencilCtrl = 0; + + /* Set DestTexWatermarks_31,30 to 01 always. + *Has no effect if dest. flush is disabled. + */ +#if 0 + *(GLuint *)&imesa->Registers.ZWatermarks = 0x12000C04; + *(GLuint *)&imesa->Registers.DestTexWatermarks = 0x40200400; +#else + *(GLuint *)&imesa->Registers.ZWatermarks = 0x16001808; + *(GLuint *)&imesa->Registers.DestTexWatermarks = 0x4f000000; +#endif + imesa->Registers.DrawCtrl0.ni.DPerfAccelEn = GL_TRUE; + + /* clrCmpAlphaBlendCtrl is needed to get alphatest and + * alpha blending working properly + */ + + imesa->Registers.TexCtrl[0].s4.dBias = 0x08; + imesa->Registers.TexCtrl[1].s4.dBias = 0x08; + imesa->Registers.TexCtrl[0].s4.texXprEn = GL_TRUE; + imesa->Registers.TexCtrl[1].s4.texXprEn = GL_TRUE; + imesa->Registers.TexCtrl[0].s4.dMax = 0x0f; + imesa->Registers.TexCtrl[1].s4.dMax = 0x0f; + imesa->Registers.DrawLocalCtrl.ni.drawUpdateEn = GL_TRUE; + imesa->Registers.DrawLocalCtrl.ni.srcAlphaMode = SAM_One; + imesa->Registers.DrawLocalCtrl.ni.wrZafterAlphaTst = GL_FALSE; + imesa->Registers.DrawLocalCtrl.ni.flushPdZbufWrites= GL_TRUE; + imesa->Registers.DrawLocalCtrl.ni.flushPdDestWrites= GL_TRUE; + + imesa->Registers.DrawLocalCtrl.ni.zUpdateEn= GL_TRUE; + imesa->Registers.DrawCtrl1.ni.ditherEn=GL_TRUE; + imesa->Registers.DrawCtrl1.ni.cullMode = BCM_None; + + imesa->LcsCullMode=BCM_None; + imesa->Registers.TexDescr.s4.palSize = TPS_256; +} +static void savageDDInitState_s3d( savageContextPtr imesa ) +{ +#if 1 + imesa->Registers.DestCtrl.ui = 1<<7; +#else + imesa->Registers.DestCtrl.ui = 0; +#endif + imesa->Registers.ZBufCtrl.ui = 0; + + imesa->Registers.ZBufCtrl.s3d.zCmpFunc = LCS_Z_LESS & 0x07; + imesa->Registers.ZBufOffset.ui = 0; + imesa->Registers.FogCtrl.ui = 0; + memset (imesa->Registers.FogTable.ni.ucEntry, 0, 64); + imesa->Registers.TexDescr.ui = 0; + imesa->Registers.TexAddr[0].ui = 0; + imesa->Registers.TexPalAddr.ui = 0; + imesa->Registers.TexCtrl[0].ui = 0; +#if 1/*def __GL_HALF_PIXEL_OFFSET*/ + imesa->Registers.DrawCtrl.ui = 0; +#else + imesa->Registers.DrawCtrl.ui = 1<<1; +#endif + imesa->Registers.ScissorsStart.ui = 0; + imesa->Registers.ScissorsEnd.ui = 0; + + /* Set DestTexWatermarks_31,30 to 01 always. + *Has no effect if dest. flush is disabled. + */ +#if 0 + imesa->Registers.ZWatermarks.ui = 0x12000C04; + imesa->Registers.DestTexWatermarks.ui = 0x40200400; +#else + imesa->Registers.ZWatermarks.ui = 0x16001808; + imesa->Registers.DestTexWatermarks.ui = 0x4f000000; +#endif + + /* clrCmpAlphaBlendCtrl is needed to get alphatest and + * alpha blending working properly + */ + + imesa->Registers.TexCtrl[0].s3d.dBias = 0x08; + imesa->Registers.TexCtrl[0].s3d.texXprEn = GL_TRUE; + + imesa->Registers.ZBufCtrl.s3d.drawUpdateEn = GL_TRUE; + imesa->Registers.ZBufCtrl.s3d.wrZafterAlphaTst = GL_FALSE; + imesa->Registers.ZBufCtrl.s3d.zUpdateEn = GL_TRUE; + + imesa->Registers.DrawCtrl.ni.srcAlphaMode = SAM_One; + imesa->Registers.DrawCtrl.ni.flushPdZbufWrites = GL_TRUE; + imesa->Registers.DrawCtrl.ni.flushPdDestWrites = GL_TRUE; + + imesa->Registers.DrawCtrl.ni.ditherEn = GL_TRUE; + imesa->Registers.DrawCtrl.ni.cullMode = BCM_None; + + imesa->LcsCullMode = BCM_None; + imesa->Registers.TexDescr.s3d.palSize = TPS_256; +} +void savageDDInitState( savageContextPtr imesa ) { + volatile GLuint* pBCIBase; + if (imesa->savageScreen->chipset >= S3_SAVAGE4) + savageDDInitState_s4 (imesa); + else + savageDDInitState_s3d (imesa); + + /*fprintf(stderr,"DBflag:%d\n",imesa->glCtx->Visual->DBflag);*/ + imesa->Registers.DestCtrl.ni.offset = imesa->savageScreen->backOffset>>11; + if(imesa->savageScreen->cpp == 2) + { + imesa->Registers.DestCtrl.ni.dstPixFmt = 0; + imesa->Registers.DestCtrl.ni.dstWidthInTile = + (imesa->savageScreen->width+63)>>6; + } + else + { + imesa->Registers.DestCtrl.ni.dstPixFmt = 1; + imesa->Registers.DestCtrl.ni.dstWidthInTile = + (imesa->savageScreen->width+31)>>5; + } + + imesa->IsDouble = GL_TRUE; + + imesa->NotFirstFrame = GL_FALSE; + imesa->Registers.ZBufOffset.ni.offset=imesa->savageScreen->depthOffset>>11; + if(imesa->savageScreen->zpp == 2) + { + imesa->Registers.ZBufOffset.ni.zBufWidthInTiles = + (imesa->savageScreen->width+63)>>6; + imesa->Registers.ZBufOffset.ni.zDepthSelect = 0; + } + else + { + imesa->Registers.ZBufOffset.ni.zBufWidthInTiles = + (imesa->savageScreen->width+31)>>5; + imesa->Registers.ZBufOffset.ni.zDepthSelect = 1; + } + + if (imesa->glCtx->Color._DrawDestMask == BACK_LEFT_BIT) { + if(imesa->IsFullScreen) + { + imesa->toggle = TARGET_BACK; + + imesa->drawMap = (char *)imesa->apertureBase[imesa->toggle]; + imesa->readMap = (char *)imesa->apertureBase[imesa->toggle]; + } + else + { + imesa->drawMap = (char *)imesa->apertureBase[TARGET_BACK]; + imesa->readMap = (char *)imesa->apertureBase[TARGET_BACK]; + } + + } else { + + if(imesa->IsFullScreen) + { + imesa->toggle = TARGET_BACK; + + imesa->drawMap = (char *)imesa->apertureBase[imesa->toggle]; + imesa->readMap = (char *)imesa->apertureBase[imesa->toggle]; + } + else + { + imesa->drawMap = (char *)imesa->apertureBase[TARGET_BACK]; + imesa->readMap = (char *)imesa->apertureBase[TARGET_BACK]; + } + } + +#if 0 + if(imesa->driDrawable) + { + LOCK_HARDWARE(imesa); + } + pBCIBase=SAVAGE_GET_BCI_POINTER(imesa,38); + *pBCIBase++ = WAIT_3D_IDLE; + pBCIBase[0] = SET_REGISTER(DST,1); + pBCIBase[1] = imesa->Registers.DestCtrl.ui; + pBCIBase+=2; + + pBCIBase[0] = SET_REGISTER(ZBUFCTRL,1); + pBCIBase[1] = imesa->Registers.ZBufCtrl.ui; + pBCIBase+=2; + + pBCIBase[0] = SET_REGISTER(ZBUFOFF,1); + pBCIBase[1] = imesa->Registers.ZBufOffset.ui; + pBCIBase+=2; + + pBCIBase[0] = SET_REGISTER(FOGCTRL,1); + pBCIBase[1] = imesa->Registers.FogCtrl.ui; + pBCIBase+=2; + + + pBCIBase[0] = SET_REGISTER(FOGTABLE,8); + memcpy((GLvoid *)(pBCIBase+1),(GLvoid *)imesa->Registers.FogTable.ni.ulEntry,32); + pBCIBase+=9; + + pBCIBase[0] = SET_REGISTER(DRAWLOCALCTRL,1); + pBCIBase[1] = imesa->Registers.DrawLocalCtrl.ui; + pBCIBase+=2; + + pBCIBase[0] = SET_REGISTER(DRAWCTRLGLOBAL0,2); + pBCIBase[1] = imesa->Registers.DrawCtrl0.ui; + pBCIBase[2] = imesa->Registers.DrawCtrl1.ui; + pBCIBase+=3; + + + pBCIBase[0] = SET_REGISTER(TEXPALADDR,1); + pBCIBase[1] = imesa->Registers.TexPalAddr.ui; + pBCIBase+=2; + + + pBCIBase[0] = SET_REGISTER(TEXCTRL0,6); + pBCIBase[1] = imesa->Registers.TexCtrl[0].ui; + pBCIBase[2] = imesa->Registers.TexCtrl[1].ui; + + pBCIBase[3] = imesa->Registers.TexAddr[0].ui; + pBCIBase[4] = imesa->Registers.TexAddr[1].ui; + pBCIBase[5] = imesa->Registers.TexBlendCtrl[0].ui; + pBCIBase[6] = imesa->Registers.TexBlendCtrl[1].ui; + pBCIBase+=7; + + pBCIBase[0] = SET_REGISTER(TEXDESCR,1); + pBCIBase[1] = imesa->Registers.TexDescr.ui; + pBCIBase+=2; + + + pBCIBase[0] = SET_REGISTER(STENCILCTRL,1); + pBCIBase[1] = imesa->Registers.StencilCtrl.ui; + pBCIBase+=2; + + pBCIBase[0] = SET_REGISTER(ZWATERMARK,1); + pBCIBase[1] = imesa->Registers.ZWatermarks.ui; + pBCIBase+=2; + + pBCIBase[0] = SET_REGISTER(DESTTEXRWWATERMARK,1); + pBCIBase[1] = imesa->Registers.DestTexWatermarks.ui; + pBCIBase+=2; + + if(imesa->driDrawable) + { + UNLOCK_HARDWARE(imesa); + } +#else + if(imesa->driDrawable) + LOCK_HARDWARE(imesa); + + /* This is the only reg that is not emitted in savageUpdateRegisters. + * FIXME: Should this be set by the Xserver? */ + pBCIBase = SAVAGE_GET_BCI_POINTER(imesa,3); + *pBCIBase++ = WAIT_3D_IDLE; + *pBCIBase++ = SET_REGISTER(SAVAGE_ZBUFOFF_S4,1); /* The same on S3D. */ + *pBCIBase++ = imesa->Registers.ZBufOffset.ui; + + if(imesa->driDrawable) + UNLOCK_HARDWARE(imesa); + imesa->Registers.changed.uiRegistersChanged = ~0; +#endif +} + + +#define INTERESTED (~(NEW_MODELVIEW|NEW_PROJECTION|\ + NEW_TEXTURE_MATRIX|\ + NEW_USER_CLIP|NEW_CLIENT_STATE)) + +void savageDDRenderStart(GLcontext *ctx) +{ + savageContextPtr imesa = SAVAGE_CONTEXT( ctx ); + __DRIdrawablePrivate *dPriv = imesa->driDrawable; + XF86DRIClipRectPtr pbox; + GLint nbox; + + /* if the screen is overrided by other application. set the scissor. + * In MulitPass, re-render the screen. + */ + pbox = dPriv->pClipRects; + nbox = dPriv->numClipRects; + if (nbox) + { + imesa->currentClip = nbox; + /* set scissor to the first clip box*/ + savageDDScissor(ctx,pbox->x1,pbox->y1,pbox->x2,pbox->y2); + + savageUpdateCull(ctx); + savageDDUpdateHwState(ctx); /* update to hardware register*/ + } + else /* need not render at all*/ + { + /*ctx->VB->CopyStart = ctx->VB->Count;*/ + } + LOCK_HARDWARE(SAVAGE_CONTEXT(ctx)); +} + + +void savageDDRenderEnd(GLcontext *ctx) +{ + savageContextPtr imesa = SAVAGE_CONTEXT( ctx ); + + UNLOCK_HARDWARE(SAVAGE_CONTEXT(ctx)); + if(!imesa->IsDouble) + { + savageSwapBuffers(imesa->driDrawable); + } + +} + +static void savageDDInvalidateState( GLcontext *ctx, GLuint new_state ) +{ + _swrast_InvalidateState( ctx, new_state ); + _swsetup_InvalidateState( ctx, new_state ); + _ac_InvalidateState( ctx, new_state ); + _tnl_InvalidateState( ctx, new_state ); + SAVAGE_CONTEXT(ctx)->new_gl_state |= new_state; +} + + +void savageDDInitStateFuncs(GLcontext *ctx) +{ + ctx->Driver.UpdateState = savageDDInvalidateState; + ctx->Driver.BlendEquationSeparate = savageDDBlendEquationSeparate; + ctx->Driver.Fogfv = savageDDFogfv; + ctx->Driver.Scissor = savageDDScissor; +#if HW_CULL + ctx->Driver.CullFace = savageDDCullFaceFrontFace; + ctx->Driver.FrontFace = savageDDCullFaceFrontFace; +#else + ctx->Driver.CullFace = 0; + ctx->Driver.FrontFace = 0; +#endif /* end #if HW_CULL */ + ctx->Driver.PolygonMode=NULL; + ctx->Driver.PolygonStipple = 0; + ctx->Driver.LineStipple = 0; + ctx->Driver.LineWidth = 0; + ctx->Driver.LogicOpcode = 0; + ctx->Driver.DrawBuffer = savageDDDrawBuffer; + ctx->Driver.ReadBuffer = savageDDReadBuffer; + ctx->Driver.ClearColor = savageDDClearColor; + + ctx->Driver.DepthRange = savageDepthRange; + ctx->Driver.Viewport = savageViewport; + ctx->Driver.RenderMode = savageRenderMode; + + ctx->Driver.ClearIndex = 0; + ctx->Driver.IndexMask = 0; + + if (SAVAGE_CONTEXT( ctx )->savageScreen->chipset >= S3_SAVAGE4) { + ctx->Driver.Enable = savageDDEnable_s4; + ctx->Driver.AlphaFunc = savageDDAlphaFunc_s4; + ctx->Driver.DepthFunc = savageDDDepthFunc_s4; + ctx->Driver.DepthMask = savageDDDepthMask_s4; + ctx->Driver.BlendFuncSeparate = savageDDBlendFuncSeparate_s4; + ctx->Driver.ColorMask = savageDDColorMask_s4; + ctx->Driver.ShadeModel = savageDDShadeModel_s4; + ctx->Driver.LightModelfv = savageDDLightModelfv_s4; +#if HW_STENCIL + ctx->Driver.StencilFunc = savageDDStencilFunc; + ctx->Driver.StencilMask = savageDDStencilMask; + ctx->Driver.StencilOp = savageDDStencilOp; +#else + ctx->Driver.StencilFunc = 0; + ctx->Driver.StencilMask = 0; + ctx->Driver.StencilOp = 0; +#endif /* end #if HW_STENCIL */ + } else { + ctx->Driver.Enable = savageDDEnable_s3d; + ctx->Driver.AlphaFunc = savageDDAlphaFunc_s3d; + ctx->Driver.DepthFunc = savageDDDepthFunc_s3d; + ctx->Driver.DepthMask = savageDDDepthMask_s3d; + ctx->Driver.BlendFuncSeparate = savageDDBlendFuncSeparate_s3d; + ctx->Driver.ColorMask = savageDDColorMask_s3d; + ctx->Driver.ShadeModel = savageDDShadeModel_s3d; + ctx->Driver.LightModelfv = savageDDLightModelfv_s3d; + ctx->Driver.StencilFunc = 0; + ctx->Driver.StencilMask = 0; + ctx->Driver.StencilOp = 0; + } + + /* Swrast hooks for imaging extensions: + */ + ctx->Driver.CopyColorTable = _swrast_CopyColorTable; + ctx->Driver.CopyColorSubTable = _swrast_CopyColorSubTable; + ctx->Driver.CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D; + ctx->Driver.CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D; +} |