diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/unichrome/via_state.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/unichrome/via_state.c | 1550 |
1 files changed, 1550 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/unichrome/via_state.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/unichrome/via_state.c new file mode 100644 index 000000000..4037d14ff --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/unichrome/via_state.c @@ -0,0 +1,1550 @@ +/* + * 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 "glheader.h" +#include "buffers.h" +#include "context.h" +#include "macros.h" +#include "colormac.h" +#include "enums.h" +#include "dd.h" + +#include "mm.h" +#include "via_context.h" +#include "via_state.h" +#include "via_tex.h" +#include "via_tris.h" +#include "via_ioctl.h" +#include "via_3d_reg.h" + +#include "swrast/swrast.h" +#include "array_cache/acache.h" +#include "tnl/tnl.h" +#include "swrast_setup/swrast_setup.h" + +#include "tnl/t_pipeline.h" + + +static GLuint ROP[16] = { + HC_HROP_BLACK, /* GL_CLEAR 0 */ + HC_HROP_DPa, /* GL_AND s & d */ + HC_HROP_PDna, /* GL_AND_REVERSE s & ~d */ + HC_HROP_P, /* GL_COPY s */ + HC_HROP_DPna, /* GL_AND_INVERTED ~s & d */ + HC_HROP_D, /* GL_NOOP d */ + HC_HROP_DPx, /* GL_XOR s ^ d */ + HC_HROP_DPo, /* GL_OR s | d */ + HC_HROP_DPon, /* GL_NOR ~(s | d) */ + HC_HROP_DPxn, /* GL_EQUIV ~(s ^ d) */ + HC_HROP_Dn, /* GL_INVERT ~d */ + HC_HROP_PDno, /* GL_OR_REVERSE s | ~d */ + HC_HROP_Pn, /* GL_COPY_INVERTED ~s */ + HC_HROP_DPno, /* GL_OR_INVERTED ~s | d */ + HC_HROP_DPan, /* GL_NAND ~(s & d) */ + HC_HROP_WHITE /* GL_SET 1 */ +}; + +/* + * Compute the 'S5.5' lod bias factor from the floating point OpenGL bias. + */ +static GLuint viaComputeLodBias(GLfloat bias) +{ + int b = (int) (bias * 32.0); + if (b > 511) + b = 511; + else if (b < -512) + b = -512; + return (GLuint) b; +} + +void viaEmitState(struct via_context *vmesa) +{ + GLcontext *ctx = vmesa->glCtx; + GLuint i = 0; + GLuint j = 0; + RING_VARS; + + viaCheckDma(vmesa, 0x110); + + BEGIN_RING(5); + OUT_RING( HC_HEADER2 ); + OUT_RING( (HC_ParaType_NotTex << 16) ); + OUT_RING( ((HC_SubA_HEnable << 24) | vmesa->regEnable) ); + OUT_RING( ((HC_SubA_HFBBMSKL << 24) | vmesa->regHFBBMSKL) ); + OUT_RING( ((HC_SubA_HROP << 24) | vmesa->regHROP) ); + ADVANCE_RING(); + + if (vmesa->have_hw_stencil) { + GLuint pitch, format, offset; + + format = HC_HZWBFM_24; + offset = vmesa->depth.offset; + pitch = vmesa->depth.pitch; + + BEGIN_RING(6); + OUT_RING( (HC_SubA_HZWBBasL << 24) | (offset & 0xFFFFFF) ); + OUT_RING( (HC_SubA_HZWBBasH << 24) | ((offset & 0xFF000000) >> 24) ); + OUT_RING( (HC_SubA_HZWBType << 24) | HC_HDBLoc_Local | HC_HZONEasFF_MASK | + format | pitch ); + OUT_RING( (HC_SubA_HZWTMD << 24) | vmesa->regHZWTMD ); + OUT_RING( (HC_SubA_HSTREF << 24) | vmesa->regHSTREF ); + OUT_RING( (HC_SubA_HSTMD << 24) | vmesa->regHSTMD ); + ADVANCE_RING(); + } + else if (vmesa->hasDepth) { + GLuint pitch, format, offset; + + if (vmesa->depthBits == 16) { + format = HC_HZWBFM_16; + } + else { + format = HC_HZWBFM_32; + } + + + offset = vmesa->depth.offset; + pitch = vmesa->depth.pitch; + + BEGIN_RING(4); + OUT_RING( (HC_SubA_HZWBBasL << 24) | (offset & 0xFFFFFF) ); + OUT_RING( (HC_SubA_HZWBBasH << 24) | ((offset & 0xFF000000) >> 24) ); + OUT_RING( (HC_SubA_HZWBType << 24) | HC_HDBLoc_Local | HC_HZONEasFF_MASK | + format | pitch ); + OUT_RING( (HC_SubA_HZWTMD << 24) | vmesa->regHZWTMD ); + ADVANCE_RING(); + } + + if (ctx->Color.AlphaEnabled) { + BEGIN_RING(1); + OUT_RING( (HC_SubA_HATMD << 24) | vmesa->regHATMD ); + ADVANCE_RING(); + i++; + } + + if (ctx->Color.BlendEnabled) { + BEGIN_RING(11); + OUT_RING( (HC_SubA_HABLCsat << 24) | vmesa->regHABLCsat ); + OUT_RING( (HC_SubA_HABLCop << 24) | vmesa->regHABLCop ); + OUT_RING( (HC_SubA_HABLAsat << 24) | vmesa->regHABLAsat ); + OUT_RING( (HC_SubA_HABLAop << 24) | vmesa->regHABLAop ); + OUT_RING( (HC_SubA_HABLRCa << 24) | vmesa->regHABLRCa ); + OUT_RING( (HC_SubA_HABLRFCa << 24) | vmesa->regHABLRFCa ); + OUT_RING( (HC_SubA_HABLRCbias << 24) | vmesa->regHABLRCbias ); + OUT_RING( (HC_SubA_HABLRCb << 24) | vmesa->regHABLRCb ); + OUT_RING( (HC_SubA_HABLRFCb << 24) | vmesa->regHABLRFCb ); + OUT_RING( (HC_SubA_HABLRAa << 24) | vmesa->regHABLRAa ); + OUT_RING( (HC_SubA_HABLRAb << 24) | vmesa->regHABLRAb ); + ADVANCE_RING(); + } + + if (ctx->Fog.Enabled) { + BEGIN_RING(3); + OUT_RING( (HC_SubA_HFogLF << 24) | vmesa->regHFogLF ); + OUT_RING( (HC_SubA_HFogCL << 24) | vmesa->regHFogCL ); + OUT_RING( (HC_SubA_HFogCH << 24) | vmesa->regHFogCH ); + ADVANCE_RING(); + } + + if (ctx->Line.StippleFlag) { + BEGIN_RING(2); + OUT_RING( (HC_SubA_HLP << 24) | ctx->Line.StipplePattern ); + OUT_RING( (HC_SubA_HLPRF << 24) | ctx->Line.StippleFactor ); + ADVANCE_RING(); + } + + BEGIN_RING(1); + OUT_RING( (HC_SubA_HPixGC << 24) | 0x0 ); + ADVANCE_RING(); + + QWORD_PAD_RING(); + + + if (ctx->Texture._EnabledUnits) { + + struct gl_texture_unit *texUnit0 = &ctx->Texture.Unit[0]; + struct gl_texture_unit *texUnit1 = &ctx->Texture.Unit[1]; + + { + GLuint nDummyValue = 0; + + BEGIN_RING( 8 ); + OUT_RING( HC_HEADER2 ); + OUT_RING( (HC_ParaType_Tex << 16) | (HC_SubType_TexGeneral << 24) ); + + if (texUnit0->Enabled && texUnit1->Enabled) { + nDummyValue = (HC_SubA_HTXSMD << 24) | (1 << 3); + } + else { + nDummyValue = (HC_SubA_HTXSMD << 24) | 0; + } + + if (vmesa->clearTexCache) { + vmesa->clearTexCache = 0; + OUT_RING( nDummyValue | HC_HTXCHCLR_MASK ); + OUT_RING( nDummyValue ); + } + else { + OUT_RING( nDummyValue ); + OUT_RING( nDummyValue ); + } + + OUT_RING( HC_HEADER2 ); + OUT_RING( HC_ParaType_NotTex << 16 ); + OUT_RING( (HC_SubA_HEnable << 24) | vmesa->regEnable ); + OUT_RING( (HC_SubA_HEnable << 24) | vmesa->regEnable ); + ADVANCE_RING(); + } + + if (texUnit0->Enabled) { + struct gl_texture_object *texObj = texUnit0->_Current; + struct via_texture_object *t = (struct via_texture_object *)texObj; + GLuint numLevels = t->lastLevel - t->firstLevel + 1; + if (VIA_DEBUG & DEBUG_STATE) { + fprintf(stderr, "texture0 enabled\n"); + } + if (numLevels == 8) { + BEGIN_RING(27); + OUT_RING( HC_HEADER2 ); + OUT_RING( (HC_ParaType_Tex << 16) | (0 << 24) ); + OUT_RING( t->regTexFM ); + OUT_RING( (HC_SubA_HTXnL0OS << 24) | + ((t->lastLevel) << HC_HTXnLVmax_SHIFT) | t->firstLevel ); + OUT_RING( t->regTexWidthLog2[0] ); + OUT_RING( t->regTexWidthLog2[1] ); + OUT_RING( t->regTexHeightLog2[0] ); + OUT_RING( t->regTexHeightLog2[1] ); + OUT_RING( t->regTexBaseH[0] ); + OUT_RING( t->regTexBaseH[1] ); + OUT_RING( t->regTexBaseH[2] ); + OUT_RING( t->regTexBaseAndPitch[0].baseL ); + OUT_RING( t->regTexBaseAndPitch[0].pitchLog2 ); + OUT_RING( t->regTexBaseAndPitch[1].baseL ); + OUT_RING( t->regTexBaseAndPitch[1].pitchLog2 ); + OUT_RING( t->regTexBaseAndPitch[2].baseL ); + OUT_RING( t->regTexBaseAndPitch[2].pitchLog2 ); + OUT_RING( t->regTexBaseAndPitch[3].baseL ); + OUT_RING( t->regTexBaseAndPitch[3].pitchLog2 ); + OUT_RING( t->regTexBaseAndPitch[4].baseL ); + OUT_RING( t->regTexBaseAndPitch[4].pitchLog2 ); + OUT_RING( t->regTexBaseAndPitch[5].baseL ); + OUT_RING( t->regTexBaseAndPitch[5].pitchLog2 ); + OUT_RING( t->regTexBaseAndPitch[6].baseL ); + OUT_RING( t->regTexBaseAndPitch[6].pitchLog2 ); + OUT_RING( t->regTexBaseAndPitch[7].baseL ); + OUT_RING( t->regTexBaseAndPitch[7].pitchLog2 ); + ADVANCE_RING(); + } + else if (numLevels > 1) { + + BEGIN_RING(12 + numLevels * 2); + OUT_RING( HC_HEADER2 ); + OUT_RING( (HC_ParaType_Tex << 16) | (0 << 24) ); + OUT_RING( t->regTexFM ); + OUT_RING( (HC_SubA_HTXnL0OS << 24) | + ((t->lastLevel) << HC_HTXnLVmax_SHIFT) | t->firstLevel ); + OUT_RING( t->regTexWidthLog2[0] ); + OUT_RING( t->regTexHeightLog2[0] ); + + if (numLevels > 6) { + OUT_RING( t->regTexWidthLog2[1] ); + OUT_RING( t->regTexHeightLog2[1] ); + } + + OUT_RING( t->regTexBaseH[0] ); + + if (numLevels > 3) { + OUT_RING( t->regTexBaseH[1] ); + } + if (numLevels > 6) { + OUT_RING( t->regTexBaseH[2] ); + } + if (numLevels > 9) { + OUT_RING( t->regTexBaseH[3] ); + } + + for (j = 0; j < numLevels; j++) { + OUT_RING( t->regTexBaseAndPitch[j].baseL ); + OUT_RING( t->regTexBaseAndPitch[j].pitchLog2 ); + } + + ADVANCE_RING_VARIABLE(); + } + else { + + BEGIN_RING(9); + OUT_RING( HC_HEADER2 ); + OUT_RING( (HC_ParaType_Tex << 16) | (0 << 24) ); + OUT_RING( t->regTexFM ); + OUT_RING( (HC_SubA_HTXnL0OS << 24) | + ((t->lastLevel) << HC_HTXnLVmax_SHIFT) | t->firstLevel ); + OUT_RING( t->regTexWidthLog2[0] ); + OUT_RING( t->regTexHeightLog2[0] ); + OUT_RING( t->regTexBaseH[0] ); + OUT_RING( t->regTexBaseAndPitch[0].baseL ); + OUT_RING( t->regTexBaseAndPitch[0].pitchLog2 ); + ADVANCE_RING(); + } + + BEGIN_RING(14); + OUT_RING( (HC_SubA_HTXnTB << 24) | vmesa->regHTXnTB[0] ); + OUT_RING( (HC_SubA_HTXnMPMD << 24) | vmesa->regHTXnMPMD[0] ); + OUT_RING( (HC_SubA_HTXnTBLCsat << 24) | vmesa->regHTXnTBLCsat[0] ); + OUT_RING( (HC_SubA_HTXnTBLCop << 24) | vmesa->regHTXnTBLCop[0] ); + OUT_RING( (HC_SubA_HTXnTBLMPfog << 24) | vmesa->regHTXnTBLMPfog[0] ); + OUT_RING( (HC_SubA_HTXnTBLAsat << 24) | vmesa->regHTXnTBLAsat[0] ); + OUT_RING( (HC_SubA_HTXnTBLRCb << 24) | vmesa->regHTXnTBLRCb[0] ); + OUT_RING( (HC_SubA_HTXnTBLRAa << 24) | vmesa->regHTXnTBLRAa[0] ); + OUT_RING( (HC_SubA_HTXnTBLRFog << 24) | vmesa->regHTXnTBLRFog[0] ); + OUT_RING( (HC_SubA_HTXnTBLRCa << 24) | vmesa->regHTXnTBLRCa[0] ); + OUT_RING( (HC_SubA_HTXnTBLRCc << 24) | vmesa->regHTXnTBLRCc[0] ); + OUT_RING( (HC_SubA_HTXnTBLRCbias << 24) | vmesa->regHTXnTBLRCbias[0] ); + OUT_RING( (HC_SubA_HTXnTBC << 24) | vmesa->regHTXnTBC[0] ); + OUT_RING( (HC_SubA_HTXnTRAH << 24) | vmesa->regHTXnTRAH[0] ); +/* OUT_RING( (HC_SubA_HTXnCLODu << 24) | vmesa->regHTXnCLOD[0] ); */ + ADVANCE_RING(); + + /* KW: This test never succeeds: + */ + if (t->regTexFM == HC_HTXnFM_Index8) { + struct gl_color_table *table = &texObj->Palette; + GLfloat *tableF = (GLfloat *)table->Table; + + BEGIN_RING(2 + table->Size); + OUT_RING( HC_HEADER2 ); + OUT_RING( (HC_ParaType_Palette << 16) | (0 << 24) ); + for (j = 0; j < table->Size; j++) + OUT_RING( tableF[j] ); + ADVANCE_RING(); + + } + + QWORD_PAD_RING(); + } + + if (texUnit1->Enabled) { + struct gl_texture_object *texObj = texUnit1->_Current; + struct via_texture_object *t = (struct via_texture_object *)texObj; + GLuint numLevels = t->lastLevel - t->firstLevel + 1; + int texunit = (texUnit0->Enabled ? 1 : 0); + if (VIA_DEBUG & DEBUG_STATE) { + fprintf(stderr, "texture1 enabled\n"); + } + if (numLevels == 8) { + BEGIN_RING(27); + OUT_RING( HC_HEADER2 ); + OUT_RING( (HC_ParaType_Tex << 16) | (texunit << 24) ); + OUT_RING( t->regTexFM ); + OUT_RING( (HC_SubA_HTXnL0OS << 24) | + ((t->lastLevel) << HC_HTXnLVmax_SHIFT) | t->firstLevel ); + OUT_RING( t->regTexWidthLog2[0] ); + OUT_RING( t->regTexWidthLog2[1] ); + OUT_RING( t->regTexHeightLog2[0] ); + OUT_RING( t->regTexHeightLog2[1] ); + OUT_RING( t->regTexBaseH[0] ); + OUT_RING( t->regTexBaseH[1] ); + OUT_RING( t->regTexBaseH[2] ); + OUT_RING( t->regTexBaseAndPitch[0].baseL ); + OUT_RING( t->regTexBaseAndPitch[0].pitchLog2 ); + OUT_RING( t->regTexBaseAndPitch[1].baseL ); + OUT_RING( t->regTexBaseAndPitch[1].pitchLog2 ); + OUT_RING( t->regTexBaseAndPitch[2].baseL ); + OUT_RING( t->regTexBaseAndPitch[2].pitchLog2 ); + OUT_RING( t->regTexBaseAndPitch[3].baseL ); + OUT_RING( t->regTexBaseAndPitch[3].pitchLog2 ); + OUT_RING( t->regTexBaseAndPitch[4].baseL ); + OUT_RING( t->regTexBaseAndPitch[4].pitchLog2 ); + OUT_RING( t->regTexBaseAndPitch[5].baseL ); + OUT_RING( t->regTexBaseAndPitch[5].pitchLog2 ); + OUT_RING( t->regTexBaseAndPitch[6].baseL ); + OUT_RING( t->regTexBaseAndPitch[6].pitchLog2 ); + OUT_RING( t->regTexBaseAndPitch[7].baseL ); + OUT_RING( t->regTexBaseAndPitch[7].pitchLog2 ); + ADVANCE_RING(); + } + else if (numLevels > 1) { + BEGIN_RING(12 + numLevels * 2); + OUT_RING( HC_HEADER2 ); + OUT_RING( (HC_ParaType_Tex << 16) | (texunit << 24) ); + OUT_RING( t->regTexFM ); + OUT_RING( (HC_SubA_HTXnL0OS << 24) | + ((t->lastLevel) << HC_HTXnLVmax_SHIFT) | t->firstLevel ); + OUT_RING( t->regTexWidthLog2[0] ); + OUT_RING( t->regTexHeightLog2[0] ); + + if (numLevels > 6) { + OUT_RING( t->regTexWidthLog2[1] ); + OUT_RING( t->regTexHeightLog2[1] ); + i += 2; + } + + OUT_RING( t->regTexBaseH[0] ); + + if (numLevels > 3) { + OUT_RING( t->regTexBaseH[1] ); + } + if (numLevels > 6) { + OUT_RING( t->regTexBaseH[2] ); + } + if (numLevels > 9) { + OUT_RING( t->regTexBaseH[3] ); + } + + for (j = 0; j < numLevels; j++) { + OUT_RING( t->regTexBaseAndPitch[j].baseL ); + OUT_RING( t->regTexBaseAndPitch[j].pitchLog2 ); + } + ADVANCE_RING_VARIABLE(); + } + else { + BEGIN_RING(9); + OUT_RING( HC_HEADER2 ); + OUT_RING( (HC_ParaType_Tex << 16) | (texunit << 24) ); + OUT_RING( t->regTexFM ); + OUT_RING( (HC_SubA_HTXnL0OS << 24) | + ((t->lastLevel) << HC_HTXnLVmax_SHIFT) | t->firstLevel ); + OUT_RING( t->regTexWidthLog2[0] ); + OUT_RING( t->regTexHeightLog2[0] ); + OUT_RING( t->regTexBaseH[0] ); + OUT_RING( t->regTexBaseAndPitch[0].baseL ); + OUT_RING( t->regTexBaseAndPitch[0].pitchLog2 ); + ADVANCE_RING(); + } + + BEGIN_RING(14); + OUT_RING( (HC_SubA_HTXnTB << 24) | vmesa->regHTXnTB[1] ); + OUT_RING( (HC_SubA_HTXnMPMD << 24) | vmesa->regHTXnMPMD[1] ); + OUT_RING( (HC_SubA_HTXnTBLCsat << 24) | vmesa->regHTXnTBLCsat[1] ); + OUT_RING( (HC_SubA_HTXnTBLCop << 24) | vmesa->regHTXnTBLCop[1] ); + OUT_RING( (HC_SubA_HTXnTBLMPfog << 24) | vmesa->regHTXnTBLMPfog[1] ); + OUT_RING( (HC_SubA_HTXnTBLAsat << 24) | vmesa->regHTXnTBLAsat[1] ); + OUT_RING( (HC_SubA_HTXnTBLRCb << 24) | vmesa->regHTXnTBLRCb[1] ); + OUT_RING( (HC_SubA_HTXnTBLRAa << 24) | vmesa->regHTXnTBLRAa[1] ); + OUT_RING( (HC_SubA_HTXnTBLRFog << 24) | vmesa->regHTXnTBLRFog[1] ); + OUT_RING( (HC_SubA_HTXnTBLRCa << 24) | vmesa->regHTXnTBLRCa[1] ); + OUT_RING( (HC_SubA_HTXnTBLRCc << 24) | vmesa->regHTXnTBLRCc[1] ); + OUT_RING( (HC_SubA_HTXnTBLRCbias << 24) | vmesa->regHTXnTBLRCbias[1] ); + OUT_RING( (HC_SubA_HTXnTBC << 24) | vmesa->regHTXnTBC[1] ); + OUT_RING( (HC_SubA_HTXnTRAH << 24) | vmesa->regHTXnTRAH[1] ); +/* OUT_RING( (HC_SubA_HTXnCLODu << 24) | vmesa->regHTXnCLOD[1] ); */ + ADVANCE_RING(); + + /* KW: This test never succeeds: + */ + if (t->regTexFM == HC_HTXnFM_Index8) { + struct gl_color_table *table = &texObj->Palette; + GLfloat *tableF = (GLfloat *)table->Table; + + BEGIN_RING(2 + table->Size); + OUT_RING( HC_HEADER2 ); + OUT_RING( (HC_ParaType_Palette << 16) | (texunit << 24) ); + for (j = 0; j < table->Size; j++) { + OUT_RING( tableF[j] ); + } + ADVANCE_RING(); + } + + QWORD_PAD_RING(); + } + } + +#if 0 + /* Polygon stipple is broken - for certain stipple values, + * eg. 0xf0f0f0f0, the hardware will refuse to accept the stipple. + * Coincidentally, conform generates just such a stipple. + */ + if (ctx->Polygon.StippleFlag) { + GLuint *stipple = &ctx->PolygonStipple[0]; + GLint i; + + BEGIN_RING(38); + OUT_RING( HC_HEADER2 ); + + OUT_RING( ((HC_ParaType_Palette << 16) | (HC_SubType_Stipple << 24)) ); + for (i = 31; i >= 0; i--) { + GLint j; + GLuint k = 0; + + /* Need to flip bits left to right: + */ + for (j = 0 ; j < 32; j++) + if (stipple[i] & (1<<j)) + k |= 1 << (31-j); + + OUT_RING( k ); + } + + OUT_RING( HC_HEADER2 ); + OUT_RING( (HC_ParaType_NotTex << 16) ); + OUT_RING( (HC_SubA_HSPXYOS << 24) | + (((32- vmesa->drawXoff) & 0x1f) << HC_HSPXOS_SHIFT)); + OUT_RING( (HC_SubA_HSPXYOS << 24) | + (((32 - vmesa->drawXoff) & 0x1f) << HC_HSPXOS_SHIFT)); + + ADVANCE_RING(); + } +#endif + + vmesa->newEmitState = 0; +} + + +static __inline__ GLuint viaPackColor(GLuint bpp, + GLubyte r, GLubyte g, + GLubyte b, GLubyte a) +{ + switch (bpp) { + case 16: + return PACK_COLOR_565(r, g, b); + case 32: + return PACK_COLOR_8888(a, r, g, b); + default: + assert(0); + return 0; + } +} + +static void viaBlendEquationSeparate(GLcontext *ctx, + GLenum rgbMode, + GLenum aMode) +{ + if (VIA_DEBUG & DEBUG_STATE) + fprintf(stderr, "%s in\n", __FUNCTION__); + + /* GL_EXT_blend_equation_separate not supported */ + ASSERT(rgbMode == aMode); + + /* Can only do GL_ADD equation in hardware */ + FALLBACK(VIA_CONTEXT(ctx), VIA_FALLBACK_BLEND_EQ, + rgbMode != GL_FUNC_ADD_EXT); + + /* BlendEquation sets ColorLogicOpEnabled in an unexpected + * manner. + */ + FALLBACK(VIA_CONTEXT(ctx), VIA_FALLBACK_LOGICOP, + (ctx->Color.ColorLogicOpEnabled && + ctx->Color.LogicOp != GL_COPY)); +} + +static void viaBlendFunc(GLcontext *ctx, GLenum sfactor, GLenum dfactor) +{ + struct via_context *vmesa = VIA_CONTEXT(ctx); + GLboolean fallback = GL_FALSE; + if (VIA_DEBUG & DEBUG_STATE) + fprintf(stderr, "%s in\n", __FUNCTION__); + + switch (ctx->Color.BlendSrcRGB) { + case GL_SRC_ALPHA_SATURATE: + case GL_CONSTANT_COLOR: + case GL_ONE_MINUS_CONSTANT_COLOR: + case GL_CONSTANT_ALPHA: + case GL_ONE_MINUS_CONSTANT_ALPHA: + fallback = GL_TRUE; + break; + default: + break; + } + + switch (ctx->Color.BlendDstRGB) { + case GL_CONSTANT_COLOR: + case GL_ONE_MINUS_CONSTANT_COLOR: + case GL_CONSTANT_ALPHA: + case GL_ONE_MINUS_CONSTANT_ALPHA: + fallback = GL_TRUE; + break; + default: + break; + } + + FALLBACK(vmesa, VIA_FALLBACK_BLEND_FUNC, fallback); +} + +/* Shouldn't be called as the extension is disabled. + */ +static void viaBlendFuncSeparate(GLcontext *ctx, GLenum sfactorRGB, + GLenum dfactorRGB, GLenum sfactorA, + GLenum dfactorA) +{ + if (dfactorRGB != dfactorA || sfactorRGB != sfactorA) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glBlendEquation (disabled)"); + } + + viaBlendFunc(ctx, sfactorRGB, dfactorRGB); +} + + + + +/* ============================================================= + * Hardware clipping + */ +static void viaScissor(GLcontext *ctx, GLint x, GLint y, + GLsizei w, GLsizei h) +{ + struct via_context *vmesa = VIA_CONTEXT(ctx); + + if (!vmesa->driDrawable) + return; + + if (VIA_DEBUG & DEBUG_STATE) + fprintf(stderr, "%s %d,%d %dx%d, drawH %d\n", __FUNCTION__, + x,y,w,h, vmesa->driDrawable->h); + + if (vmesa->scissor) { + VIA_FLUSH_DMA(vmesa); /* don't pipeline cliprect changes */ + } + + vmesa->scissorRect.x1 = x; + vmesa->scissorRect.y1 = vmesa->driDrawable->h - y - h; + vmesa->scissorRect.x2 = x + w; + vmesa->scissorRect.y2 = vmesa->driDrawable->h - y; +} + +static void viaEnable(GLcontext *ctx, GLenum cap, GLboolean state) +{ + struct via_context *vmesa = VIA_CONTEXT(ctx); + + switch (cap) { + case GL_SCISSOR_TEST: + VIA_FLUSH_DMA(vmesa); + vmesa->scissor = state; + break; + default: + break; + } +} + + + +/* Fallback to swrast for select and feedback. + */ +static void viaRenderMode(GLcontext *ctx, GLenum mode) +{ + FALLBACK(VIA_CONTEXT(ctx), VIA_FALLBACK_RENDERMODE, (mode != GL_RENDER)); +} + + +static void viaDrawBuffer(GLcontext *ctx, GLenum mode) +{ + struct via_context *vmesa = VIA_CONTEXT(ctx); + + if (VIA_DEBUG & (DEBUG_DRI|DEBUG_STATE)) + fprintf(stderr, "%s in\n", __FUNCTION__); + + if (!ctx->DrawBuffer) + return; + + switch ( ctx->DrawBuffer->_ColorDrawBufferMask[0] ) { + case BUFFER_BIT_FRONT_LEFT: + VIA_FLUSH_DMA(vmesa); + vmesa->drawBuffer = vmesa->readBuffer = &vmesa->front; + FALLBACK(vmesa, VIA_FALLBACK_DRAW_BUFFER, GL_FALSE); + break; + case BUFFER_BIT_BACK_LEFT: + VIA_FLUSH_DMA(vmesa); + vmesa->drawBuffer = vmesa->readBuffer = &vmesa->back; + FALLBACK(vmesa, VIA_FALLBACK_DRAW_BUFFER, GL_FALSE); + break; + default: + FALLBACK(vmesa, VIA_FALLBACK_DRAW_BUFFER, GL_TRUE); + return; + } + + + viaXMesaWindowMoved(vmesa); + + /* We want to update the s/w rast state too so that viaSetBuffer() + * gets called. + */ + _swrast_DrawBuffer(ctx, mode); +} + +static void viaClearColor(GLcontext *ctx, const GLfloat color[4]) +{ + struct via_context *vmesa = VIA_CONTEXT(ctx); + GLubyte pcolor[4]; + CLAMPED_FLOAT_TO_UBYTE(pcolor[0], color[0]); + CLAMPED_FLOAT_TO_UBYTE(pcolor[1], color[1]); + CLAMPED_FLOAT_TO_UBYTE(pcolor[2], color[2]); + CLAMPED_FLOAT_TO_UBYTE(pcolor[3], color[3]); + vmesa->ClearColor = viaPackColor(vmesa->viaScreen->bitsPerPixel, + pcolor[0], pcolor[1], + pcolor[2], pcolor[3]); +} + +#define WRITEMASK_ALPHA_SHIFT 31 +#define WRITEMASK_RED_SHIFT 30 +#define WRITEMASK_GREEN_SHIFT 29 +#define WRITEMASK_BLUE_SHIFT 28 + +static void viaColorMask(GLcontext *ctx, + GLboolean r, GLboolean g, + GLboolean b, GLboolean a) +{ + struct via_context *vmesa = VIA_CONTEXT( ctx ); + + if (VIA_DEBUG & DEBUG_STATE) + fprintf(stderr, "%s r(%d) g(%d) b(%d) a(%d)\n", __FUNCTION__, r, g, b, a); + + vmesa->ClearMask = (((!r) << WRITEMASK_RED_SHIFT) | + ((!g) << WRITEMASK_GREEN_SHIFT) | + ((!b) << WRITEMASK_BLUE_SHIFT) | + ((!a) << WRITEMASK_ALPHA_SHIFT)); +} + + +/* ============================================================= + */ + + +/* Using drawXoff like this is incorrect outside of locked regions. + * This hardware just isn't capable of private back buffers without + * glitches and/or a hefty locking scheme. + */ +void viaCalcViewport(GLcontext *ctx) +{ + struct via_context *vmesa = VIA_CONTEXT(ctx); + const GLfloat *v = ctx->Viewport._WindowMap.m; + GLfloat *m = vmesa->ViewportMatrix.m; + + /* See also via_translate_vertex. + */ + m[MAT_SX] = v[MAT_SX]; + m[MAT_TX] = v[MAT_TX] + SUBPIXEL_X + vmesa->drawXoff; + m[MAT_SY] = - v[MAT_SY]; + m[MAT_TY] = - v[MAT_TY] + vmesa->driDrawable->h + SUBPIXEL_Y; + m[MAT_SZ] = v[MAT_SZ] * (1.0 / vmesa->depth_max); + m[MAT_TZ] = v[MAT_TZ] * (1.0 / vmesa->depth_max); +} + +static void viaViewport(GLcontext *ctx, + GLint x, GLint y, + GLsizei width, GLsizei height) +{ + /* update size of Mesa/software ancillary buffers */ + _mesa_ResizeBuffersMESA(); + viaCalcViewport(ctx); +} + +static void viaDepthRange(GLcontext *ctx, + GLclampd nearval, GLclampd farval) +{ + viaCalcViewport(ctx); +} + +void viaInitState(GLcontext *ctx) +{ + struct via_context *vmesa = VIA_CONTEXT(ctx); + + vmesa->regCmdB = HC_ACMD_HCmdB; + vmesa->regEnable = HC_HenCW_MASK; + + /* Mesa should do this for us: + */ + + ctx->Driver.BlendEquationSeparate( ctx, + ctx->Color.BlendEquationRGB, + ctx->Color.BlendEquationA); + + ctx->Driver.BlendFuncSeparate( ctx, + ctx->Color.BlendSrcRGB, + ctx->Color.BlendDstRGB, + ctx->Color.BlendSrcA, + ctx->Color.BlendDstA); + + ctx->Driver.Scissor( ctx, ctx->Scissor.X, ctx->Scissor.Y, + ctx->Scissor.Width, ctx->Scissor.Height ); + + ctx->Driver.DrawBuffer( ctx, ctx->Color.DrawBuffer[0] ); +} + +/** + * Convert S and T texture coordinate wrap modes to hardware bits. + */ +static u_int32_t +get_wrap_mode( GLenum sWrap, GLenum tWrap ) +{ + u_int32_t v = 0; + + + switch( sWrap ) { + case GL_REPEAT: + v |= HC_HTXnMPMD_Srepeat; + break; + case GL_CLAMP: + case GL_CLAMP_TO_EDGE: + v |= HC_HTXnMPMD_Sclamp; + break; + case GL_MIRRORED_REPEAT: + v |= HC_HTXnMPMD_Smirror; + break; + } + + switch( tWrap ) { + case GL_REPEAT: + v |= HC_HTXnMPMD_Trepeat; + break; + case GL_CLAMP: + case GL_CLAMP_TO_EDGE: + v |= HC_HTXnMPMD_Tclamp; + break; + case GL_MIRRORED_REPEAT: + v |= HC_HTXnMPMD_Tmirror; + break; + } + + return v; +} + +static u_int32_t +get_minmag_filter( GLenum min, GLenum mag ) +{ + u_int32_t v = 0; + + switch (min) { + case GL_NEAREST: + v = HC_HTXnFLSs_Nearest | + HC_HTXnFLTs_Nearest; + break; + case GL_LINEAR: + v = HC_HTXnFLSs_Linear | + HC_HTXnFLTs_Linear; + break; + case GL_NEAREST_MIPMAP_NEAREST: + v = HC_HTXnFLSs_Nearest | + HC_HTXnFLTs_Nearest; + v |= HC_HTXnFLDs_Nearest; + break; + case GL_LINEAR_MIPMAP_NEAREST: + v = HC_HTXnFLSs_Linear | + HC_HTXnFLTs_Linear; + v |= HC_HTXnFLDs_Nearest; + break; + case GL_NEAREST_MIPMAP_LINEAR: + v = HC_HTXnFLSs_Nearest | + HC_HTXnFLTs_Nearest; + v |= HC_HTXnFLDs_Linear; + break; + case GL_LINEAR_MIPMAP_LINEAR: + v = HC_HTXnFLSs_Linear | + HC_HTXnFLTs_Linear; + v |= HC_HTXnFLDs_Linear; + break; + default: + break; + } + + switch (mag) { + case GL_LINEAR: + v |= HC_HTXnFLSe_Linear | + HC_HTXnFLTe_Linear; + break; + case GL_NEAREST: + v |= HC_HTXnFLSe_Nearest | + HC_HTXnFLTe_Nearest; + break; + default: + break; + } + + return v; +} + + +static GLboolean viaChooseTextureState(GLcontext *ctx) +{ + struct via_context *vmesa = VIA_CONTEXT(ctx); + struct gl_texture_unit *texUnit0 = &ctx->Texture.Unit[0]; + struct gl_texture_unit *texUnit1 = &ctx->Texture.Unit[1]; + + if (texUnit0->_ReallyEnabled || texUnit1->_ReallyEnabled) { + vmesa->regEnable |= HC_HenTXMP_MASK | HC_HenTXCH_MASK | HC_HenTXPP_MASK; + + if (texUnit0->_ReallyEnabled) { + struct gl_texture_object *texObj = texUnit0->_Current; + + vmesa->regHTXnTB[0] = get_minmag_filter( texObj->MinFilter, + texObj->MagFilter ); + + vmesa->regHTXnMPMD[0] &= ~(HC_HTXnMPMD_SMASK | HC_HTXnMPMD_TMASK); + vmesa->regHTXnMPMD[0] |= get_wrap_mode( texObj->WrapS, + texObj->WrapT ); + + vmesa->regHTXnTB[0] &= ~(HC_HTXnTB_TBC_S | HC_HTXnTB_TBC_T); + if (texObj->Image[0][texObj->BaseLevel]->Border > 0) { + vmesa->regHTXnTB[0] |= (HC_HTXnTB_TBC_S | HC_HTXnTB_TBC_T); + vmesa->regHTXnTBC[0] = + PACK_COLOR_888(FLOAT_TO_UBYTE(texObj->BorderColor[0]), + FLOAT_TO_UBYTE(texObj->BorderColor[1]), + FLOAT_TO_UBYTE(texObj->BorderColor[2])); + vmesa->regHTXnTRAH[0] = FLOAT_TO_UBYTE(texObj->BorderColor[3]); + } + + if (texUnit0->LodBias != 0.0f) { + GLuint b = viaComputeLodBias(texUnit0->LodBias); + vmesa->regHTXnTB[0] &= ~HC_HTXnFLDs_MASK; + vmesa->regHTXnTB[0] |= HC_HTXnFLDs_ConstLOD; + vmesa->regHTXnCLOD[0] = (b&0x1f) | (((~b)&0x1f)<<10); /* FIXME */ + } + + if (!viaTexCombineState( vmesa, texUnit0->_CurrentCombine, 0 )) { + if (VIA_DEBUG & DEBUG_TEXTURE) + fprintf(stderr, "viaTexCombineState failed for unit 0\n"); + return GL_FALSE; + } + } + + if (texUnit1->_ReallyEnabled) { + struct gl_texture_object *texObj = texUnit1->_Current; + + vmesa->regHTXnTB[1] = get_minmag_filter( texObj->MinFilter, + texObj->MagFilter ); + vmesa->regHTXnMPMD[1] &= ~(HC_HTXnMPMD_SMASK | HC_HTXnMPMD_TMASK); + vmesa->regHTXnMPMD[1] |= get_wrap_mode( texObj->WrapS, + texObj->WrapT ); + + vmesa->regHTXnTB[1] &= ~(HC_HTXnTB_TBC_S | HC_HTXnTB_TBC_T); + if (texObj->Image[0][texObj->BaseLevel]->Border > 0) { + vmesa->regHTXnTB[1] |= (HC_HTXnTB_TBC_S | HC_HTXnTB_TBC_T); + vmesa->regHTXnTBC[1] = + PACK_COLOR_888(FLOAT_TO_UBYTE(texObj->BorderColor[0]), + FLOAT_TO_UBYTE(texObj->BorderColor[1]), + FLOAT_TO_UBYTE(texObj->BorderColor[2])); + vmesa->regHTXnTRAH[1] = FLOAT_TO_UBYTE(texObj->BorderColor[3]); + } + + + if (texUnit1->LodBias != 0.0f) { + GLuint b = viaComputeLodBias(texUnit1->LodBias); + vmesa->regHTXnTB[1] &= ~HC_HTXnFLDs_MASK; + vmesa->regHTXnTB[1] |= HC_HTXnFLDs_ConstLOD; + vmesa->regHTXnCLOD[1] = (b&0x1f) | (((~b)&0x1f)<<10); /* FIXME */ + } + + if (!viaTexCombineState( vmesa, texUnit1->_CurrentCombine, 1 )) { + if (VIA_DEBUG & DEBUG_TEXTURE) + fprintf(stderr, "viaTexCombineState failed for unit 1\n"); + return GL_FALSE; + } + } + } + else { + vmesa->regEnable &= ~(HC_HenTXMP_MASK | HC_HenTXCH_MASK | + HC_HenTXPP_MASK); + } + + return GL_TRUE; +} + +static void viaChooseColorState(GLcontext *ctx) +{ + struct via_context *vmesa = VIA_CONTEXT(ctx); + GLenum s = ctx->Color.BlendSrcRGB; + GLenum d = ctx->Color.BlendDstRGB; + + /* The HW's blending equation is: + * (Ca * FCa + Cbias + Cb * FCb) << Cshift + */ + + if (ctx->Color.BlendEnabled) { + vmesa->regEnable |= HC_HenABL_MASK; + /* Ca -- always from source color. + */ + vmesa->regHABLCsat = HC_HABLCsat_MASK | HC_HABLCa_OPC | HC_HABLCa_Csrc; + /* Aa -- always from source alpha. + */ + vmesa->regHABLAsat = HC_HABLAsat_MASK | HC_HABLAa_OPA | HC_HABLAa_Asrc; + /* FCa -- depend on following condition. + * FAa -- depend on following condition. + */ + switch (s) { + case GL_ZERO: + /* (0, 0, 0, 0) + */ + vmesa->regHABLCsat |= HC_HABLFCa_OPC | HC_HABLFCa_HABLRCa; + vmesa->regHABLAsat |= HC_HABLFAa_OPA | HC_HABLFAa_HABLFRA; + vmesa->regHABLRFCa = 0x0; + vmesa->regHABLRAa = 0x0; + break; + case GL_ONE: + /* (1, 1, 1, 1) + */ + vmesa->regHABLCsat |= HC_HABLFCa_InvOPC | HC_HABLFCa_HABLRCa; + vmesa->regHABLAsat |= HC_HABLFAa_InvOPA | HC_HABLFAa_HABLFRA; + vmesa->regHABLRFCa = 0x0; + vmesa->regHABLRAa = 0x0; + break; + case GL_SRC_COLOR: + /* (Rs, Gs, Bs, As) + */ + vmesa->regHABLCsat |= HC_HABLFCa_OPC | HC_HABLFCa_Csrc; + vmesa->regHABLAsat |= HC_HABLFAa_OPA | HC_HABLFAa_Asrc; + break; + case GL_ONE_MINUS_SRC_COLOR: + /* (1, 1, 1, 1) - (Rs, Gs, Bs, As) + */ + vmesa->regHABLCsat |= HC_HABLFCa_InvOPC | HC_HABLFCa_Csrc; + vmesa->regHABLAsat |= HC_HABLFAa_InvOPA | HC_HABLFAa_Asrc; + break; + case GL_DST_COLOR: + /* (Rd, Gd, Bd, Ad) + */ + vmesa->regHABLCsat |= HC_HABLFCa_OPC | HC_HABLFCa_Cdst; + vmesa->regHABLAsat |= HC_HABLFAa_OPA | HC_HABLFAa_Adst; + break; + case GL_ONE_MINUS_DST_COLOR: + /* (1, 1, 1, 1) - (Rd, Gd, Bd, Ad) + */ + vmesa->regHABLCsat |= HC_HABLFCa_InvOPC | HC_HABLFCa_Cdst; + vmesa->regHABLAsat |= HC_HABLFAa_InvOPA | HC_HABLFAa_Adst; + break; + case GL_SRC_ALPHA: + /* (As, As, As, As) + */ + vmesa->regHABLCsat |= HC_HABLFCa_OPC | HC_HABLFCa_Asrc; + vmesa->regHABLAsat |= HC_HABLFAa_OPA | HC_HABLFAa_Asrc; + break; + case GL_ONE_MINUS_SRC_ALPHA: + /* (1, 1, 1, 1) - (As, As, As, As) + */ + vmesa->regHABLCsat |= HC_HABLFCa_InvOPC | HC_HABLFCa_Asrc; + vmesa->regHABLAsat |= HC_HABLFAa_InvOPA | HC_HABLFAa_Asrc; + break; + case GL_DST_ALPHA: + { + if (vmesa->viaScreen->bitsPerPixel == 16) { + /* (1, 1, 1, 1) + */ + vmesa->regHABLCsat |= (HC_HABLFCa_InvOPC | + HC_HABLFCa_HABLRCa); + vmesa->regHABLAsat |= (HC_HABLFAa_InvOPA | + HC_HABLFAa_HABLFRA); + vmesa->regHABLRFCa = 0x0; + vmesa->regHABLRAa = 0x0; + } + else { + /* (Ad, Ad, Ad, Ad) + */ + vmesa->regHABLCsat |= HC_HABLFCa_OPC | HC_HABLFCa_Adst; + vmesa->regHABLAsat |= HC_HABLFAa_OPA | HC_HABLFAa_Adst; + } + } + break; + case GL_ONE_MINUS_DST_ALPHA: + { + if (vmesa->viaScreen->bitsPerPixel == 16) { + /* (1, 1, 1, 1) - (1, 1, 1, 1) = (0, 0, 0, 0) + */ + vmesa->regHABLCsat |= HC_HABLFCa_OPC | HC_HABLFCa_HABLRCa; + vmesa->regHABLAsat |= HC_HABLFAa_OPA | HC_HABLFAa_HABLFRA; + vmesa->regHABLRFCa = 0x0; + vmesa->regHABLRAa = 0x0; + } + else { + /* (1, 1, 1, 1) - (Ad, Ad, Ad, Ad) + */ + vmesa->regHABLCsat |= HC_HABLFCa_InvOPC | HC_HABLFCa_Adst; + vmesa->regHABLAsat |= HC_HABLFAa_InvOPA | HC_HABLFAa_Adst; + } + } + break; + case GL_SRC_ALPHA_SATURATE: + { + if (vmesa->viaScreen->bitsPerPixel == 16) { + /* (f, f, f, 1), f = min(As, 1 - Ad) = min(As, 1 - 1) = 0 + * So (f, f, f, 1) = (0, 0, 0, 1) + */ + vmesa->regHABLCsat |= HC_HABLFCa_OPC | HC_HABLFCa_HABLRCa; + vmesa->regHABLAsat |= (HC_HABLFAa_InvOPA | + HC_HABLFAa_HABLFRA); + vmesa->regHABLRFCa = 0x0; + vmesa->regHABLRAa = 0x0; + } + else { + /* (f, f, f, 1), f = min(As, 1 - Ad) + */ + vmesa->regHABLCsat |= (HC_HABLFCa_OPC | + HC_HABLFCa_mimAsrcInvAdst); + vmesa->regHABLAsat |= (HC_HABLFAa_InvOPA | + HC_HABLFAa_HABLFRA); + vmesa->regHABLRFCa = 0x0; + vmesa->regHABLRAa = 0x0; + } + } + break; + } + + /* Op is add. + */ + + /* bias is 0. + */ + vmesa->regHABLCsat |= HC_HABLCbias_HABLRCbias; + vmesa->regHABLAsat |= HC_HABLAbias_HABLRAbias; + + /* Cb -- always from destination color. + */ + vmesa->regHABLCop = HC_HABLCb_OPC | HC_HABLCb_Cdst; + /* Ab -- always from destination alpha. + */ + vmesa->regHABLAop = HC_HABLAb_OPA | HC_HABLAb_Adst; + /* FCb -- depend on following condition. + */ + switch (d) { + case GL_ZERO: + /* (0, 0, 0, 0) + */ + vmesa->regHABLCop |= HC_HABLFCb_OPC | HC_HABLFCb_HABLRCb; + vmesa->regHABLAop |= HC_HABLFAb_OPA | HC_HABLFAb_HABLFRA; + vmesa->regHABLRFCb = 0x0; + vmesa->regHABLRAb = 0x0; + break; + case GL_ONE: + /* (1, 1, 1, 1) + */ + vmesa->regHABLCop |= HC_HABLFCb_InvOPC | HC_HABLFCb_HABLRCb; + vmesa->regHABLAop |= HC_HABLFAb_InvOPA | HC_HABLFAb_HABLFRA; + vmesa->regHABLRFCb = 0x0; + vmesa->regHABLRAb = 0x0; + break; + case GL_SRC_COLOR: + /* (Rs, Gs, Bs, As) + */ + vmesa->regHABLCop |= HC_HABLFCb_OPC | HC_HABLFCb_Csrc; + vmesa->regHABLAop |= HC_HABLFAb_OPA | HC_HABLFAb_Asrc; + break; + case GL_ONE_MINUS_SRC_COLOR: + /* (1, 1, 1, 1) - (Rs, Gs, Bs, As) + */ + vmesa->regHABLCop |= HC_HABLFCb_InvOPC | HC_HABLFCb_Csrc; + vmesa->regHABLAop |= HC_HABLFAb_InvOPA | HC_HABLFAb_Asrc; + break; + case GL_DST_COLOR: + /* (Rd, Gd, Bd, Ad) + */ + vmesa->regHABLCop |= HC_HABLFCb_OPC | HC_HABLFCb_Cdst; + vmesa->regHABLAop |= HC_HABLFAb_OPA | HC_HABLFAb_Adst; + break; + case GL_ONE_MINUS_DST_COLOR: + /* (1, 1, 1, 1) - (Rd, Gd, Bd, Ad) + */ + vmesa->regHABLCop |= HC_HABLFCb_InvOPC | HC_HABLFCb_Cdst; + vmesa->regHABLAop |= HC_HABLFAb_InvOPA | HC_HABLFAb_Adst; + break; + case GL_SRC_ALPHA: + /* (As, As, As, As) + */ + vmesa->regHABLCop |= HC_HABLFCb_OPC | HC_HABLFCb_Asrc; + vmesa->regHABLAop |= HC_HABLFAb_OPA | HC_HABLFAb_Asrc; + break; + case GL_ONE_MINUS_SRC_ALPHA: + /* (1, 1, 1, 1) - (As, As, As, As) + */ + vmesa->regHABLCop |= HC_HABLFCb_InvOPC | HC_HABLFCb_Asrc; + vmesa->regHABLAop |= HC_HABLFAb_InvOPA | HC_HABLFAb_Asrc; + break; + case GL_DST_ALPHA: + { + if (vmesa->viaScreen->bitsPerPixel == 16) { + /* (1, 1, 1, 1) + */ + vmesa->regHABLCop |= HC_HABLFCb_InvOPC | HC_HABLFCb_HABLRCb; + vmesa->regHABLAop |= HC_HABLFAb_InvOPA | HC_HABLFAb_HABLFRA; + vmesa->regHABLRFCb = 0x0; + vmesa->regHABLRAb = 0x0; + } + else { + /* (Ad, Ad, Ad, Ad) + */ + vmesa->regHABLCop |= HC_HABLFCb_OPC | HC_HABLFCb_Adst; + vmesa->regHABLAop |= HC_HABLFAb_OPA | HC_HABLFAb_Adst; + } + } + break; + case GL_ONE_MINUS_DST_ALPHA: + { + if (vmesa->viaScreen->bitsPerPixel == 16) { + /* (1, 1, 1, 1) - (1, 1, 1, 1) = (0, 0, 0, 0) + */ + vmesa->regHABLCop |= HC_HABLFCb_OPC | HC_HABLFCb_HABLRCb; + vmesa->regHABLAop |= HC_HABLFAb_OPA | HC_HABLFAb_HABLFRA; + vmesa->regHABLRFCb = 0x0; + vmesa->regHABLRAb = 0x0; + } + else { + /* (1, 1, 1, 1) - (Ad, Ad, Ad, Ad) + */ + vmesa->regHABLCop |= HC_HABLFCb_InvOPC | HC_HABLFCb_Adst; + vmesa->regHABLAop |= HC_HABLFAb_InvOPA | HC_HABLFAb_Adst; + } + } + break; + default: + vmesa->regHABLCop |= HC_HABLFCb_OPC | HC_HABLFCb_HABLRCb; + vmesa->regHABLAop |= HC_HABLFAb_OPA | HC_HABLFAb_HABLFRA; + vmesa->regHABLRFCb = 0x0; + vmesa->regHABLRAb = 0x0; + break; + } + + if (vmesa->viaScreen->bitsPerPixel <= 16) + vmesa->regEnable &= ~HC_HenDT_MASK; + + } + else { + vmesa->regEnable &= (~HC_HenABL_MASK); + } + + if (ctx->Color.AlphaEnabled) { + vmesa->regEnable |= HC_HenAT_MASK; + vmesa->regHATMD = FLOAT_TO_UBYTE(ctx->Color.AlphaRef) | + ((ctx->Color.AlphaFunc - GL_NEVER) << 8); + } + else { + vmesa->regEnable &= (~HC_HenAT_MASK); + } + + if (ctx->Color.DitherFlag && (vmesa->viaScreen->bitsPerPixel < 32)) { + if (ctx->Color.BlendEnabled) { + vmesa->regEnable &= ~HC_HenDT_MASK; + } + else { + vmesa->regEnable |= HC_HenDT_MASK; + } + } + + + vmesa->regEnable &= ~HC_HenDT_MASK; + + if (ctx->Color.ColorLogicOpEnabled) + vmesa->regHROP = ROP[ctx->Color.LogicOp & 0xF]; + else + vmesa->regHROP = HC_HROP_P; + + vmesa->regHFBBMSKL = PACK_COLOR_888(ctx->Color.ColorMask[0], + ctx->Color.ColorMask[1], + ctx->Color.ColorMask[2]); + vmesa->regHROP |= ctx->Color.ColorMask[3]; + + if (ctx->Color.ColorMask[3]) + vmesa->regEnable |= HC_HenAW_MASK; + else + vmesa->regEnable &= ~HC_HenAW_MASK; +} + +static void viaChooseFogState(GLcontext *ctx) +{ + struct via_context *vmesa = VIA_CONTEXT(ctx); + + if (ctx->Fog.Enabled) { + GLubyte r, g, b, a; + + vmesa->regEnable |= HC_HenFOG_MASK; + + /* Use fog equation 0 (OpenGL's default) & local fog. + */ + vmesa->regHFogLF = 0x0; + + r = (GLubyte)(ctx->Fog.Color[0] * 255.0F); + g = (GLubyte)(ctx->Fog.Color[1] * 255.0F); + b = (GLubyte)(ctx->Fog.Color[2] * 255.0F); + a = (GLubyte)(ctx->Fog.Color[3] * 255.0F); + vmesa->regHFogCL = (r << 16) | (g << 8) | b; + vmesa->regHFogCH = a; + } + else { + vmesa->regEnable &= ~HC_HenFOG_MASK; + } +} + +static void viaChooseDepthState(GLcontext *ctx) +{ + struct via_context *vmesa = VIA_CONTEXT(ctx); + if (ctx->Depth.Test) { + vmesa->regEnable |= HC_HenZT_MASK; + if (ctx->Depth.Mask) + vmesa->regEnable |= HC_HenZW_MASK; + else + vmesa->regEnable &= (~HC_HenZW_MASK); + vmesa->regHZWTMD = (ctx->Depth.Func - GL_NEVER) << 16; + + } + else { + vmesa->regEnable &= ~HC_HenZT_MASK; + + /*=* [DBG] racer : can't display cars in car selection menu *=*/ + /*if (ctx->Depth.Mask) + vmesa->regEnable |= HC_HenZW_MASK; + else + vmesa->regEnable &= (~HC_HenZW_MASK);*/ + vmesa->regEnable &= (~HC_HenZW_MASK); + } +} + +static void viaChooseLineState(GLcontext *ctx) +{ + struct via_context *vmesa = VIA_CONTEXT(ctx); + + if (ctx->Line.StippleFlag) { + vmesa->regEnable |= HC_HenLP_MASK; + vmesa->regHLP = ctx->Line.StipplePattern; + vmesa->regHLPRF = ctx->Line.StippleFactor; + } + else { + vmesa->regEnable &= ~HC_HenLP_MASK; + } +} + +static void viaChoosePolygonState(GLcontext *ctx) +{ + struct via_context *vmesa = VIA_CONTEXT(ctx); + +#if 0 + /* Polygon stipple is broken - see via_state.c + */ + if (ctx->Polygon.StippleFlag) { + vmesa->regEnable |= HC_HenSP_MASK; + } + else { + vmesa->regEnable &= ~HC_HenSP_MASK; + } +#else + FALLBACK(vmesa, VIA_FALLBACK_POLY_STIPPLE, + ctx->Polygon.StippleFlag); +#endif + + if (ctx->Polygon.CullFlag) { + vmesa->regEnable |= HC_HenFBCull_MASK; + } + else { + vmesa->regEnable &= ~HC_HenFBCull_MASK; + } +} + +static void viaChooseStencilState(GLcontext *ctx) +{ + struct via_context *vmesa = VIA_CONTEXT(ctx); + + if (ctx->Stencil.Enabled) { + GLuint temp; + + vmesa->regEnable |= HC_HenST_MASK; + temp = (ctx->Stencil.Ref[0] & 0xFF) << HC_HSTREF_SHIFT; + temp |= 0xFF << HC_HSTOPMSK_SHIFT; + temp |= (ctx->Stencil.ValueMask[0] & 0xFF); + vmesa->regHSTREF = temp; + + temp = (ctx->Stencil.Function[0] - GL_NEVER) << 16; + + switch (ctx->Stencil.FailFunc[0]) { + case GL_KEEP: + temp |= HC_HSTOPSF_KEEP; + break; + case GL_ZERO: + temp |= HC_HSTOPSF_ZERO; + break; + case GL_REPLACE: + temp |= HC_HSTOPSF_REPLACE; + break; + case GL_INVERT: + temp |= HC_HSTOPSF_INVERT; + break; + case GL_INCR: + temp |= HC_HSTOPSF_INCR; + break; + case GL_DECR: + temp |= HC_HSTOPSF_DECR; + break; + } + + switch (ctx->Stencil.ZFailFunc[0]) { + case GL_KEEP: + temp |= HC_HSTOPSPZF_KEEP; + break; + case GL_ZERO: + temp |= HC_HSTOPSPZF_ZERO; + break; + case GL_REPLACE: + temp |= HC_HSTOPSPZF_REPLACE; + break; + case GL_INVERT: + temp |= HC_HSTOPSPZF_INVERT; + break; + case GL_INCR: + temp |= HC_HSTOPSPZF_INCR; + break; + case GL_DECR: + temp |= HC_HSTOPSPZF_DECR; + break; + } + + switch (ctx->Stencil.ZPassFunc[0]) { + case GL_KEEP: + temp |= HC_HSTOPSPZP_KEEP; + break; + case GL_ZERO: + temp |= HC_HSTOPSPZP_ZERO; + break; + case GL_REPLACE: + temp |= HC_HSTOPSPZP_REPLACE; + break; + case GL_INVERT: + temp |= HC_HSTOPSPZP_INVERT; + break; + case GL_INCR: + temp |= HC_HSTOPSPZP_INCR; + break; + case GL_DECR: + temp |= HC_HSTOPSPZP_DECR; + break; + } + vmesa->regHSTMD = temp; + } + else { + vmesa->regEnable &= ~HC_HenST_MASK; + } +} + + + +static void viaChooseTriangle(GLcontext *ctx) +{ + struct via_context *vmesa = VIA_CONTEXT(ctx); + + if (ctx->Polygon.CullFlag == GL_TRUE) { + switch (ctx->Polygon.CullFaceMode) { + case GL_FRONT: + if (ctx->Polygon.FrontFace == GL_CCW) + vmesa->regCmdB |= HC_HBFace_MASK; + else + vmesa->regCmdB &= ~HC_HBFace_MASK; + break; + case GL_BACK: + if (ctx->Polygon.FrontFace == GL_CW) + vmesa->regCmdB |= HC_HBFace_MASK; + else + vmesa->regCmdB &= ~HC_HBFace_MASK; + break; + case GL_FRONT_AND_BACK: + return; + } + } +} + +void viaValidateState( GLcontext *ctx ) +{ + struct via_context *vmesa = VIA_CONTEXT(ctx); + + if (vmesa->newState & _NEW_TEXTURE) { + GLboolean ok = (viaChooseTextureState(ctx) && + viaUpdateTextureState(ctx)); + + FALLBACK(vmesa, VIA_FALLBACK_TEXTURE, !ok); + } + + if (vmesa->newState & _NEW_COLOR) + viaChooseColorState(ctx); + + if (vmesa->newState & _NEW_DEPTH) + viaChooseDepthState(ctx); + + if (vmesa->newState & _NEW_FOG) + viaChooseFogState(ctx); + + if (vmesa->newState & _NEW_LINE) + viaChooseLineState(ctx); + + if (vmesa->newState & (_NEW_POLYGON | _NEW_POLYGONSTIPPLE)) { + viaChoosePolygonState(ctx); + viaChooseTriangle(ctx); + } + + if ((vmesa->newState & _NEW_STENCIL) && vmesa->have_hw_stencil) + viaChooseStencilState(ctx); + + if (ctx->_TriangleCaps & DD_SEPARATE_SPECULAR) + vmesa->regEnable |= HC_HenCS_MASK; + else + vmesa->regEnable &= ~HC_HenCS_MASK; + + if (ctx->Point.SmoothFlag || + ctx->Line.SmoothFlag || + ctx->Polygon.SmoothFlag) + vmesa->regEnable |= HC_HenAA_MASK; + else + vmesa->regEnable &= ~HC_HenAA_MASK; + + vmesa->newEmitState |= vmesa->newState; + vmesa->newState = 0; +} + +static void viaInvalidateState(GLcontext *ctx, GLuint newState) +{ + struct via_context *vmesa = VIA_CONTEXT(ctx); + + VIA_FINISH_PRIM( vmesa ); + vmesa->newState |= newState; + + _swrast_InvalidateState(ctx, newState); + _swsetup_InvalidateState(ctx, newState); + _ac_InvalidateState(ctx, newState); + _tnl_InvalidateState(ctx, newState); +} + +void viaInitStateFuncs(GLcontext *ctx) +{ + /* Callbacks for internal Mesa events. + */ + ctx->Driver.UpdateState = viaInvalidateState; + + /* API callbacks + */ + ctx->Driver.BlendEquationSeparate = viaBlendEquationSeparate; + ctx->Driver.BlendFuncSeparate = viaBlendFuncSeparate; + ctx->Driver.ClearColor = viaClearColor; + ctx->Driver.ColorMask = viaColorMask; + ctx->Driver.DrawBuffer = viaDrawBuffer; + ctx->Driver.RenderMode = viaRenderMode; + ctx->Driver.Scissor = viaScissor; + ctx->Driver.DepthRange = viaDepthRange; + ctx->Driver.Viewport = viaViewport; + ctx->Driver.Enable = viaEnable; + + /* Pixel path fallbacks. + */ + ctx->Driver.Accum = _swrast_Accum; + ctx->Driver.Bitmap = _swrast_Bitmap; + ctx->Driver.CopyPixels = _swrast_CopyPixels; + ctx->Driver.DrawPixels = _swrast_DrawPixels; + ctx->Driver.ReadPixels = _swrast_ReadPixels; + ctx->Driver.ResizeBuffers = viaReAllocateBuffers; + + /* 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; +} |