diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/i830/i830_state.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/i830/i830_state.c | 1707 |
1 files changed, 1707 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/i830/i830_state.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/i830/i830_state.c new file mode 100644 index 000000000..615348544 --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/i830/i830_state.c @@ -0,0 +1,1707 @@ +/************************************************************************** + +Copyright 2001 2d3d Inc., Delray Beach, FL + +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 +on 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 +ATI, VA LINUX SYSTEMS AND/OR THEIR 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. + +**************************************************************************/ + +/* $XFree86: xc/lib/GL/mesa/src/drv/i830/i830_state.c,v 1.6 2003/01/28 22:47:06 dawes Exp $ */ + +/* + * Author: + * Jeff Hartmann <jhartmann@2d3d.com> + * + * Heavily based on the I810 driver, which was written by: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "glheader.h" +#include "buffers.h" +#include "context.h" +#include "macros.h" +#include "enums.h" +#include "dd.h" + +#include "texmem.h" + +#include "i830_screen.h" +#include "i830_dri.h" + +#include "i830_context.h" +#include "i830_state.h" +#include "i830_tex.h" +#include "i830_tris.h" +#include "i830_ioctl.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 __inline__ GLuint i830PackColor(GLuint format, + GLubyte r, GLubyte g, + GLubyte b, GLubyte a) +{ + + if (I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "%s\n", __FUNCTION__); + + switch (format) { + case DV_PF_555: + return I830PACKCOLOR1555(r,g,b,a); + case DV_PF_565: + return I830PACKCOLOR565(r,g,b); + case DV_PF_8888: + return I830PACKCOLOR8888(r,g,b,a); + default: + fprintf(stderr, "unknown format %d\n", (int)format); + return 0; + } +} + +static void i830StencilFunc(GLcontext *ctx, GLenum func, GLint ref, + GLuint mask) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + int test = 0; + + mask = mask & 0xff; + + if (I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "%s : func: %s, ref : 0x%x, mask: 0x%x\n", __FUNCTION__, + _mesa_lookup_enum_by_nr(func), ref, mask); + + switch(func) { + case GL_NEVER: + test = COMPAREFUNC_NEVER; + break; + case GL_LESS: + test = COMPAREFUNC_LESS; + break; + case GL_LEQUAL: + test = COMPAREFUNC_LEQUAL; + break; + case GL_GREATER: + test = COMPAREFUNC_GREATER; + break; + case GL_GEQUAL: + test = COMPAREFUNC_GEQUAL; + break; + case GL_NOTEQUAL: + test = COMPAREFUNC_NOTEQUAL; + break; + case GL_EQUAL: + test = COMPAREFUNC_EQUAL; + break; + case GL_ALWAYS: + test = COMPAREFUNC_ALWAYS; + break; + default: + return; + } + + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + imesa->Setup[I830_CTXREG_STATE4] &= ~MODE4_ENABLE_STENCIL_TEST_MASK; + imesa->Setup[I830_CTXREG_STATE4] |= (ENABLE_STENCIL_TEST_MASK | + STENCIL_TEST_MASK(mask)); + imesa->Setup[I830_CTXREG_STENCILTST] &= ~(STENCIL_REF_VALUE_MASK | + ENABLE_STENCIL_TEST_FUNC_MASK); + imesa->Setup[I830_CTXREG_STENCILTST] |= (ENABLE_STENCIL_REF_VALUE | + ENABLE_STENCIL_TEST_FUNC | + STENCIL_REF_VALUE(ref) | + STENCIL_TEST_FUNC(test)); +} + +static void i830StencilMask(GLcontext *ctx, GLuint mask) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + + if (I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "%s : mask 0x%x\n", __FUNCTION__, mask); + + mask = mask & 0xff; + + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + imesa->Setup[I830_CTXREG_STATE4] &= ~MODE4_ENABLE_STENCIL_WRITE_MASK; + imesa->Setup[I830_CTXREG_STATE4] |= (ENABLE_STENCIL_WRITE_MASK | + STENCIL_WRITE_MASK(mask)); +} + +static void i830StencilOp(GLcontext *ctx, GLenum fail, GLenum zfail, + GLenum zpass) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + int fop, dfop, dpop; + + if (I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "%s: fail : %s, zfail: %s, zpass : %s\n", __FUNCTION__, + _mesa_lookup_enum_by_nr(fail), + _mesa_lookup_enum_by_nr(zfail), + _mesa_lookup_enum_by_nr(zpass)); + + fop = 0; dfop = 0; dpop = 0; + + switch(fail) { + case GL_KEEP: + fop = STENCILOP_KEEP; + break; + case GL_ZERO: + fop = STENCILOP_ZERO; + break; + case GL_REPLACE: + fop = STENCILOP_REPLACE; + break; + case GL_INCR: + fop = STENCILOP_INCRSAT; + break; + case GL_DECR: + fop = STENCILOP_DECRSAT; + break; + case GL_INCR_WRAP: + fop = STENCILOP_INCR; + break; + case GL_DECR_WRAP: + fop = STENCILOP_DECR; + break; + case GL_INVERT: + fop = STENCILOP_INVERT; + break; + default: + break; + } + switch(zfail) { + case GL_KEEP: + dfop = STENCILOP_KEEP; + break; + case GL_ZERO: + dfop = STENCILOP_ZERO; + break; + case GL_REPLACE: + dfop = STENCILOP_REPLACE; + break; + case GL_INCR: + dfop = STENCILOP_INCRSAT; + break; + case GL_DECR: + dfop = STENCILOP_DECRSAT; + break; + case GL_INCR_WRAP: + dfop = STENCILOP_INCR; + break; + case GL_DECR_WRAP: + dfop = STENCILOP_DECR; + break; + case GL_INVERT: + dfop = STENCILOP_INVERT; + break; + default: + break; + } + switch(zpass) { + case GL_KEEP: + dpop = STENCILOP_KEEP; + break; + case GL_ZERO: + dpop = STENCILOP_ZERO; + break; + case GL_REPLACE: + dpop = STENCILOP_REPLACE; + break; + case GL_INCR: + dpop = STENCILOP_INCRSAT; + break; + case GL_DECR: + dpop = STENCILOP_DECRSAT; + break; + case GL_INCR_WRAP: + dpop = STENCILOP_INCR; + break; + case GL_DECR_WRAP: + dpop = STENCILOP_DECR; + break; + case GL_INVERT: + dpop = STENCILOP_INVERT; + break; + default: + break; + } + + + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + imesa->Setup[I830_CTXREG_STENCILTST] &= ~(STENCIL_OPS_MASK); + imesa->Setup[I830_CTXREG_STENCILTST] |= (ENABLE_STENCIL_PARMS | + STENCIL_FAIL_OP(fop) | + STENCIL_PASS_DEPTH_FAIL_OP(dfop) | + STENCIL_PASS_DEPTH_PASS_OP(dpop)); +} + +static void i830AlphaFunc(GLcontext *ctx, GLenum func, GLfloat ref) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + int test = 0; + GLuint refByte = (GLint) (ref * 255.0); + + switch(func) { + case GL_NEVER: + test = COMPAREFUNC_NEVER; + break; + case GL_LESS: + test = COMPAREFUNC_LESS; + break; + case GL_LEQUAL: + test = COMPAREFUNC_LEQUAL; + break; + case GL_GREATER: + test = COMPAREFUNC_GREATER; + break; + case GL_GEQUAL: + test = COMPAREFUNC_GEQUAL; + break; + case GL_NOTEQUAL: + test = COMPAREFUNC_NOTEQUAL; + break; + case GL_EQUAL: + test = COMPAREFUNC_EQUAL; + break; + case GL_ALWAYS: + test = COMPAREFUNC_ALWAYS; + break; + default: + return; + } + + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + imesa->Setup[I830_CTXREG_STATE2] &= ~ALPHA_TEST_REF_MASK; + imesa->Setup[I830_CTXREG_STATE2] |= (ENABLE_ALPHA_TEST_FUNC | + ENABLE_ALPHA_REF_VALUE | + ALPHA_TEST_FUNC(test) | + ALPHA_REF_VALUE(refByte)); +} + +/* This function makes sure that the proper enables are + * set for LogicOp, Independant Alpha Blend, and Blending. + * It needs to be called from numerous places where we + * could change the LogicOp or Independant Alpha Blend without subsequent + * calls to glEnable. + */ +static void i830EvalLogicOpBlendState(GLcontext *ctx) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + + imesa->Setup[I830_CTXREG_ENABLES_1] &= ~(ENABLE_COLOR_BLEND | + ENABLE_LOGIC_OP_MASK); + imesa->Setup[I830_CTXREG_IALPHAB] &= ~ENABLE_INDPT_ALPHA_BLEND; + + if (ctx->Color.ColorLogicOpEnabled) { + imesa->Setup[I830_CTXREG_ENABLES_1] |= (DISABLE_COLOR_BLEND | + ENABLE_LOGIC_OP); + imesa->Setup[I830_CTXREG_IALPHAB] |= DISABLE_INDPT_ALPHA_BLEND; + } else if (ctx->Color.BlendEnabled) { + imesa->Setup[I830_CTXREG_ENABLES_1] |= (ENABLE_COLOR_BLEND | + DISABLE_LOGIC_OP); + + /* If the alpha blend state does not match the color blend state, + * enable independent alpha blending. Otherwise, leave it disabled + * and the hardware will use the color blend state for both. + */ + + if ( 0 && (imesa->Setup[I830_CTXREG_IALPHAB] & BLEND_STATE_MASK) + != (imesa->Setup[I830_CTXREG_STATE1] & BLEND_STATE_MASK) ) { + imesa->Setup[I830_CTXREG_IALPHAB] |= ENABLE_INDPT_ALPHA_BLEND; + } else { + imesa->Setup[I830_CTXREG_IALPHAB] |= DISABLE_INDPT_ALPHA_BLEND; + } + } else { + imesa->Setup[I830_CTXREG_ENABLES_1] |= (DISABLE_COLOR_BLEND | + DISABLE_LOGIC_OP); + imesa->Setup[I830_CTXREG_IALPHAB] |= DISABLE_INDPT_ALPHA_BLEND; + } +} + +static void i830BlendColor(GLcontext *ctx, const GLfloat color[4]) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + GLubyte r, g, b, a; + + if (I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "%s\n", __FUNCTION__); + + FLOAT_COLOR_TO_UBYTE_COLOR(r, color[RCOMP]); + FLOAT_COLOR_TO_UBYTE_COLOR(g, color[GCOMP]); + FLOAT_COLOR_TO_UBYTE_COLOR(b, color[BCOMP]); + FLOAT_COLOR_TO_UBYTE_COLOR(a, color[ACOMP]); + + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + imesa->Setup[I830_CTXREG_BLENDCOLR] = ((a << 24) | + (r << 16) | + (g << 8) | + b); +} + +/** + * Calculate the hardware blend factor setting. This same function is used + * for source and destination of both alpha and RGB. + * + * \returns + * The hardware register value for the specified blend factor. This value + * will need to be shifted into the correct position for either source or + * destination factor. + * + * \todo + * Since the two cases where source and destination are handled differently + * are essentially error cases, they should never happen. Determine if these + * cases can be removed. + */ +static int blend_factor( GLenum factor, GLboolean is_src ) +{ + int func; + + switch( factor ) { + case GL_ZERO: + func = BLENDFACT_ZERO; + break; + case GL_ONE: + func = BLENDFACT_ONE; + break; + case GL_SRC_COLOR: + func = BLENDFACT_SRC_COLR; + break; + case GL_ONE_MINUS_SRC_COLOR: + func = BLENDFACT_INV_SRC_COLR; + break; + case GL_SRC_ALPHA: + func = BLENDFACT_SRC_ALPHA; + break; + case GL_ONE_MINUS_SRC_ALPHA: + func = BLENDFACT_INV_SRC_ALPHA; + break; + case GL_DST_ALPHA: + func = BLENDFACT_DST_ALPHA; + break; + case GL_ONE_MINUS_DST_ALPHA: + func = BLENDFACT_INV_DST_ALPHA; + break; + case GL_DST_COLOR: + func = BLENDFACT_DST_COLR; + break; + case GL_ONE_MINUS_DST_COLOR: + func = BLENDFACT_INV_DST_COLR; + break; + case GL_SRC_ALPHA_SATURATE: + func = (is_src) ? BLENDFACT_SRC_ALPHA_SATURATE : BLENDFACT_ZERO; + break; + case GL_CONSTANT_COLOR: + func = BLENDFACT_CONST_COLOR; + break; + case GL_ONE_MINUS_CONSTANT_COLOR: + func = BLENDFACT_INV_CONST_COLOR; + break; + case GL_CONSTANT_ALPHA: + func = BLENDFACT_CONST_ALPHA; + break; + case GL_ONE_MINUS_CONSTANT_ALPHA: + func = BLENDFACT_INV_CONST_ALPHA; + break; + default: + func = (is_src) ? BLENDFACT_ONE : BLENDFACT_ZERO; + } + + return func; +} + + +/** + * Sets both the blend equation (called "function" in i830 docs) and the + * blend function (called "factor" in i830 docs). This is done in a single + * function because some blend equations (i.e., \c GL_MIN and \c GL_MAX) + * change the interpretation of the blend function. + */ + +static void i830_set_blend_state( GLcontext * ctx ) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + int funcA; + int funcRGB; + int eqnA; + int eqnRGB; + + + funcRGB = SRC_BLND_FACT( blend_factor( ctx->Color.BlendSrcRGB, GL_TRUE ) ) + | DST_BLND_FACT( blend_factor( ctx->Color.BlendDstRGB, GL_FALSE ) ); + + switch(ctx->Color.BlendEquationRGB) { + case GL_FUNC_ADD: + eqnRGB = BLENDFUNC_ADD; + break; + case GL_MIN: + eqnRGB = BLENDFUNC_MIN; + funcRGB = SRC_BLND_FACT(BLENDFACT_ONE) | DST_BLND_FACT(BLENDFACT_ONE); + break; + case GL_MAX: + eqnRGB = BLENDFUNC_MAX; + funcRGB = SRC_BLND_FACT(BLENDFACT_ONE) | DST_BLND_FACT(BLENDFACT_ONE); + break; + case GL_FUNC_SUBTRACT: + eqnRGB = BLENDFUNC_SUB; + break; + case GL_FUNC_REVERSE_SUBTRACT: + eqnRGB = BLENDFUNC_RVRSE_SUB; + break; + default: + fprintf( stderr, "[%s:%u] Invalid RGB blend equation (0x%04x).\n", + __func__, __LINE__, ctx->Color.BlendEquationRGB ); + return; + } + + + funcA = SRC_ABLEND_FACT( blend_factor( ctx->Color.BlendSrcA, GL_TRUE ) ) + | DST_ABLEND_FACT( blend_factor( ctx->Color.BlendDstA, GL_FALSE ) ); + + switch(ctx->Color.BlendEquationA) { + case GL_FUNC_ADD: + eqnA = BLENDFUNC_ADD; + break; + case GL_MIN: + eqnA = BLENDFUNC_MIN; + funcA = SRC_BLND_FACT(BLENDFACT_ONE) | DST_BLND_FACT(BLENDFACT_ONE); + break; + case GL_MAX: + eqnA = BLENDFUNC_MAX; + funcA = SRC_BLND_FACT(BLENDFACT_ONE) | DST_BLND_FACT(BLENDFACT_ONE); + break; + case GL_FUNC_SUBTRACT: + eqnA = BLENDFUNC_SUB; + break; + case GL_FUNC_REVERSE_SUBTRACT: + eqnA = BLENDFUNC_RVRSE_SUB; + break; + default: + fprintf( stderr, "[%s:%u] Invalid alpha blend equation (0x%04x).\n", + __func__, __LINE__, ctx->Color.BlendEquationA ); + return; + } + + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + + imesa->Setup[I830_CTXREG_STATE1] = eqnRGB | funcRGB + | STATE3D_MODES_1_CMD + | ENABLE_SRC_BLND_FACTOR | ENABLE_DST_BLND_FACTOR + | ENABLE_COLR_BLND_FUNC; + + imesa->Setup[I830_CTXREG_IALPHAB] = eqnA | funcA + | STATE3D_INDPT_ALPHA_BLEND_CMD + | ENABLE_SRC_ABLEND_FACTOR | ENABLE_DST_ABLEND_FACTOR + | ENABLE_ALPHA_BLENDFUNC; + + + /* This will catch a logicop blend equation. It will also ensure + * independant alpha blend is really in the correct state (either enabled + * or disabled) if blending is already enabled. + */ + + i830EvalLogicOpBlendState(ctx); + + if (0) { + fprintf(stderr, "[%s:%u] STATE1: 0x%08x IALPHAB: 0x%08x blend is %sabled\n", + __func__, __LINE__, + imesa->Setup[I830_CTXREG_STATE1], + imesa->Setup[I830_CTXREG_IALPHAB], + (ctx->Color.BlendEnabled) ? "en" : "dis"); + } +} + +static void i830BlendEquationSeparate(GLcontext *ctx, + GLenum modeRGB, GLenum modeA) +{ + if (I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "%s -> %s, %s\n", __FUNCTION__, + _mesa_lookup_enum_by_nr(modeRGB), + _mesa_lookup_enum_by_nr(modeA)); + + (void) modeRGB; + (void) modeA; + i830_set_blend_state( ctx ); +} + + + +static void i830BlendFuncSeparate(GLcontext *ctx, GLenum sfactorRGB, + GLenum dfactorRGB, GLenum sfactorA, + GLenum dfactorA ) +{ + if (I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "%s -> RGB(%s, %s) A(%s, %s)\n", __FUNCTION__, + _mesa_lookup_enum_by_nr(sfactorRGB), + _mesa_lookup_enum_by_nr(dfactorRGB), + _mesa_lookup_enum_by_nr(sfactorA), + _mesa_lookup_enum_by_nr(dfactorA)); + + (void) sfactorRGB; + (void) dfactorRGB; + (void) sfactorA; + (void) dfactorA; + i830_set_blend_state( ctx ); +} + +static void i830DepthFunc(GLcontext *ctx, GLenum func) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + int test = 0; + + if (I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "%s\n", __FUNCTION__); + + switch(func) { + case GL_NEVER: + test = COMPAREFUNC_NEVER; + break; + case GL_LESS: + test = COMPAREFUNC_LESS; + break; + case GL_LEQUAL: + test = COMPAREFUNC_LEQUAL; + break; + case GL_GREATER: + test = COMPAREFUNC_GREATER; + break; + case GL_GEQUAL: + test = COMPAREFUNC_GEQUAL; + break; + case GL_NOTEQUAL: + test = COMPAREFUNC_NOTEQUAL; + break; + case GL_EQUAL: + test = COMPAREFUNC_EQUAL; + break; + case GL_ALWAYS: + test = COMPAREFUNC_ALWAYS; + break; + default: return; + } + + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + imesa->Setup[I830_CTXREG_STATE3] &= ~DEPTH_TEST_FUNC_MASK; + imesa->Setup[I830_CTXREG_STATE3] |= (ENABLE_DEPTH_TEST_FUNC | + DEPTH_TEST_FUNC(test)); +} + +static void i830DepthMask(GLcontext *ctx, GLboolean flag) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + + if (I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "%s flag (%d)\n", __FUNCTION__, flag); + + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + + imesa->Setup[I830_CTXREG_ENABLES_2] &= ~ENABLE_DIS_DEPTH_WRITE_MASK; + + if (flag && ctx->Depth.Test) + imesa->Setup[I830_CTXREG_ENABLES_2] |= ENABLE_DEPTH_WRITE; + else + imesa->Setup[I830_CTXREG_ENABLES_2] |= DISABLE_DEPTH_WRITE; +} + +/* ============================================================= + * Polygon stipple + * + * The i830 supports a 4x4 stipple natively, GL wants 32x32. + * Fortunately stipple is usually a repeating pattern. + */ +static void i830PolygonStipple( GLcontext *ctx, const GLubyte *mask ) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + const GLubyte *m = mask; + GLubyte p[4]; + int i,j,k; + int active = (ctx->Polygon.StippleFlag && + imesa->reduced_primitive == GL_TRIANGLES); + GLuint newMask; + + if (active) { + I830_STATECHANGE(imesa, I830_UPLOAD_STIPPLE); + imesa->StippleSetup[I830_STPREG_ST1] &= ~ST1_ENABLE; + } + + p[0] = mask[12] & 0xf; p[0] |= p[0] << 4; + p[1] = mask[8] & 0xf; p[1] |= p[1] << 4; + p[2] = mask[4] & 0xf; p[2] |= p[2] << 4; + p[3] = mask[0] & 0xf; p[3] |= p[3] << 4; + + for (k = 0 ; k < 8 ; k++) + for (j = 3 ; j >= 0; j--) + for (i = 0 ; i < 4 ; i++, m++) + if (*m != p[j]) { + imesa->hw_stipple = 0; + return; + } + + newMask = (((p[0] & 0xf) << 0) | + ((p[1] & 0xf) << 4) | + ((p[2] & 0xf) << 8) | + ((p[3] & 0xf) << 12)); + + + if (newMask == 0xffff || newMask == 0x0) { + /* this is needed to make conform pass */ + imesa->hw_stipple = 0; + return; + } + + imesa->StippleSetup[I830_STPREG_ST1] &= ~0xffff; + imesa->StippleSetup[I830_STPREG_ST1] |= newMask; + imesa->hw_stipple = 1; + + if (active) + imesa->StippleSetup[I830_STPREG_ST1] |= ST1_ENABLE; +} + +static void i830PolygonStippleFallback( GLcontext *ctx, const GLubyte *mask ) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + imesa->hw_stipple = 0; + (void) i830PolygonStipple; +} + +/* ============================================================= + * Hardware clipping + */ +static void i830Scissor(GLcontext *ctx, GLint x, GLint y, + GLsizei w, GLsizei h) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + int x1 = x; + int y1 = imesa->driDrawable->h - (y + h); + int x2 = x + w - 1; + int y2 = y1 + h - 1; + + if (I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "[%s] x(%d) y(%d) w(%d) h(%d)\n", __FUNCTION__, + x, y, w, h); + + if (x1 < 0) x1 = 0; + if (y1 < 0) y1 = 0; + if (x2 < 0) x2 = 0; + if (y2 < 0) y2 = 0; + + if (x2 >= imesa->i830Screen->width) x2 = imesa->i830Screen->width-1; + if (y2 >= imesa->i830Screen->height) y2 = imesa->i830Screen->height-1; + if (x1 >= imesa->i830Screen->width) x1 = imesa->i830Screen->width-1; + if (y1 >= imesa->i830Screen->height) y1 = imesa->i830Screen->height-1; + + + I830_STATECHANGE(imesa, I830_UPLOAD_BUFFERS); + imesa->BufferSetup[I830_DESTREG_SR1] = (y1 << 16) | (x1 & 0xffff); + imesa->BufferSetup[I830_DESTREG_SR2] = (y2 << 16) | (x2 & 0xffff); +} + +static void i830LogicOp(GLcontext *ctx, GLenum opcode) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + int tmp = 0; + + if (I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "%s\n", __FUNCTION__); + + /* FIXME: This should be a look-up table, like the r200 driver. */ + switch(opcode) { + case GL_CLEAR: + tmp = LOGICOP_CLEAR; + break; + case GL_AND: + tmp = LOGICOP_AND; + break; + case GL_AND_REVERSE: + tmp = LOGICOP_AND_RVRSE; + break; + case GL_COPY: + tmp = LOGICOP_COPY; + break; + case GL_COPY_INVERTED: + tmp = LOGICOP_COPY_INV; + break; + case GL_AND_INVERTED: + tmp = LOGICOP_AND_INV; + break; + case GL_NOOP: + tmp = LOGICOP_NOOP; + break; + case GL_XOR: + tmp = LOGICOP_XOR; + break; + case GL_OR: + tmp = LOGICOP_OR; + break; + case GL_OR_INVERTED: + tmp = LOGICOP_OR_INV; + break; + case GL_NOR: + tmp = LOGICOP_NOR; + break; + case GL_EQUIV: + tmp = LOGICOP_EQUIV; + break; + case GL_INVERT: + tmp = LOGICOP_INV; + break; + case GL_OR_REVERSE: + tmp = LOGICOP_OR_RVRSE; + break; + case GL_NAND: + tmp = LOGICOP_NAND; + break; + case GL_SET: + tmp = LOGICOP_SET; + break; + default: + return; + } + + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + imesa->Setup[I830_CTXREG_STATE4] &= ~LOGICOP_MASK; + imesa->Setup[I830_CTXREG_STATE4] |= LOGIC_OP_FUNC(tmp); + + /* Make sure all the enables are correct */ + i830EvalLogicOpBlendState(ctx); +} + +/* Fallback to swrast for select and feedback. + */ +static void i830RenderMode( GLcontext *ctx, GLenum mode ) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + FALLBACK( imesa, I830_FALLBACK_RENDERMODE, (mode != GL_RENDER) ); +} + +static void i830DrawBuffer(GLcontext *ctx, GLenum mode ) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + + /* + * _ColorDrawBufferMask is easier to cope with than <mode>. + */ + switch ( ctx->DrawBuffer->_ColorDrawBufferMask[0] ) { + case BUFFER_BIT_FRONT_LEFT: + I830_FIREVERTICES(imesa); + I830_STATECHANGE(imesa, I830_UPLOAD_BUFFERS); + imesa->BufferSetup[I830_DESTREG_CBUFADDR] = imesa->i830Screen->fbOffset; + i830XMesaSetFrontClipRects( imesa ); + FALLBACK( imesa, I830_FALLBACK_DRAW_BUFFER, GL_FALSE ); + break; + case BUFFER_BIT_BACK_LEFT: + I830_FIREVERTICES(imesa); + I830_STATECHANGE(imesa, I830_UPLOAD_BUFFERS); + imesa->BufferSetup[I830_DESTREG_CBUFADDR] = + imesa->i830Screen->backOffset; + i830XMesaSetBackClipRects( imesa ); + FALLBACK( imesa, I830_FALLBACK_DRAW_BUFFER, GL_FALSE ); + break; + default: + /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */ + FALLBACK( imesa, I830_FALLBACK_DRAW_BUFFER, GL_TRUE ); + return; + } + + /* We want to update the s/w rast state too so that i830SetBuffer() + * gets called. + */ + _swrast_DrawBuffer(ctx, mode); +} + +static void i830ReadBuffer(GLcontext *ctx, GLenum mode ) +{ + /* nothing, until we implement h/w glRead/CopyPixels or CopyTexImage */ +} + +static void i830ClearColor(GLcontext *ctx, const GLfloat color[4]) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + + CLAMPED_FLOAT_TO_UBYTE(imesa->clear_red, color[0]); + CLAMPED_FLOAT_TO_UBYTE(imesa->clear_green, color[1]); + CLAMPED_FLOAT_TO_UBYTE(imesa->clear_blue, color[2]); + CLAMPED_FLOAT_TO_UBYTE(imesa->clear_alpha, color[3]); + + imesa->ClearColor = i830PackColor(imesa->i830Screen->fbFormat, + imesa->clear_red, + imesa->clear_green, + imesa->clear_blue, + imesa->clear_alpha); +} + +static void i830CullFaceFrontFace(GLcontext *ctx, GLenum unused) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + GLuint mode = CULLMODE_BOTH; + + if (I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "%s\n", __FUNCTION__); + + if (ctx->Polygon.CullFaceMode != GL_FRONT_AND_BACK) { + mode = CULLMODE_CW; + + if (ctx->Polygon.CullFaceMode == GL_FRONT) + mode ^= (CULLMODE_CW ^ CULLMODE_CCW); + if (ctx->Polygon.FrontFace != GL_CCW) + mode ^= (CULLMODE_CW ^ CULLMODE_CCW); + } + + imesa->LcsCullMode = mode; + + if (ctx->Polygon.CullFlag) { + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + imesa->Setup[I830_CTXREG_STATE3] &= ~CULLMODE_MASK; + imesa->Setup[I830_CTXREG_STATE3] |= ENABLE_CULL_MODE | mode; + } +} + +static void i830LineWidth( GLcontext *ctx, GLfloat widthf ) +{ + i830ContextPtr imesa = I830_CONTEXT( ctx ); + int width; + + if (I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "%s\n", __FUNCTION__); + + width = FloatToInt(widthf * 2); + CLAMP_SELF(width, 1, 15); + + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + imesa->Setup[I830_CTXREG_STATE5] &= ~FIXED_LINE_WIDTH_MASK; + imesa->Setup[I830_CTXREG_STATE5] |= (ENABLE_FIXED_LINE_WIDTH | + FIXED_LINE_WIDTH(width)); +} + +static void i830PointSize(GLcontext *ctx, GLfloat size) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + GLint point_size = FloatToInt(size); + + if (I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "%s\n", __FUNCTION__); + + CLAMP_SELF(point_size, 1, 256); + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + imesa->Setup[I830_CTXREG_STATE5] &= ~FIXED_POINT_WIDTH_MASK; + imesa->Setup[I830_CTXREG_STATE5] |= (ENABLE_FIXED_POINT_WIDTH | + FIXED_POINT_WIDTH(point_size)); +} + + +/* ============================================================= + * Color masks + */ + +static void i830ColorMask(GLcontext *ctx, + GLboolean r, GLboolean g, + GLboolean b, GLboolean a) +{ + i830ContextPtr imesa = I830_CONTEXT( ctx ); + GLuint tmp = 0; + + if (I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "%s r(%d) g(%d) b(%d) a(%d)\n", __FUNCTION__, r, g, b, a); + + imesa->mask_red = !r; + imesa->mask_green = !g; + imesa->mask_blue = !b; + imesa->mask_alpha = !a; + + tmp = (imesa->Setup[I830_CTXREG_ENABLES_2] & ~WRITEMASK_MASK) | + ENABLE_COLOR_MASK | + ENABLE_COLOR_WRITE | + ((!r) << WRITEMASK_RED_SHIFT) | + ((!g) << WRITEMASK_GREEN_SHIFT) | + ((!b) << WRITEMASK_BLUE_SHIFT) | + ((!a) << WRITEMASK_ALPHA_SHIFT); + + if (tmp != imesa->Setup[I830_CTXREG_ENABLES_2]) { + I830_FIREVERTICES(imesa); + imesa->dirty |= I830_UPLOAD_CTX; + imesa->Setup[I830_CTXREG_ENABLES_2] = tmp; + } +} + +static void update_specular( GLcontext *ctx ) +{ + i830ContextPtr imesa = I830_CONTEXT( ctx ); + + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + imesa->Setup[I830_CTXREG_ENABLES_1] &= ~ENABLE_SPEC_ADD_MASK; + + if (NEED_SECONDARY_COLOR(ctx)) + imesa->Setup[I830_CTXREG_ENABLES_1] |= ENABLE_SPEC_ADD; + else + imesa->Setup[I830_CTXREG_ENABLES_1] |= DISABLE_SPEC_ADD; +} + +static void i830LightModelfv(GLcontext *ctx, GLenum pname, + const GLfloat *param) +{ + if (I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "%s\n", __FUNCTION__); + + if (pname == GL_LIGHT_MODEL_COLOR_CONTROL) { + update_specular( ctx ); + } +} + +/* In Mesa 3.5 we can reliably do native flatshading. + */ +static void i830ShadeModel(GLcontext *ctx, GLenum mode) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + + +#define SHADE_MODE_MASK ((1<<10)|(1<<8)|(1<<6)|(1<<4)) + + imesa->Setup[I830_CTXREG_STATE3] &= ~SHADE_MODE_MASK; + + if (mode == GL_FLAT) { + imesa->Setup[I830_CTXREG_STATE3] |= (ALPHA_SHADE_MODE(SHADE_MODE_FLAT) | + FOG_SHADE_MODE(SHADE_MODE_FLAT) | + SPEC_SHADE_MODE(SHADE_MODE_FLAT) | + COLOR_SHADE_MODE(SHADE_MODE_FLAT)); + } else { + imesa->Setup[I830_CTXREG_STATE3] |= (ALPHA_SHADE_MODE(SHADE_MODE_LINEAR) | + FOG_SHADE_MODE(SHADE_MODE_LINEAR) | + SPEC_SHADE_MODE(SHADE_MODE_LINEAR) | + COLOR_SHADE_MODE(SHADE_MODE_LINEAR)); + } +} + +/* ============================================================= + * Fog + */ +static void i830Fogfv(GLcontext *ctx, GLenum pname, const GLfloat *param) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + + if (I830_DEBUG&DEBUG_DRI) + fprintf(stderr, "%s\n", __FUNCTION__); + + if (pname == GL_FOG_COLOR) { + GLuint color = (((GLubyte)(ctx->Fog.Color[0]*255.0F) << 16) | + ((GLubyte)(ctx->Fog.Color[1]*255.0F) << 8) | + ((GLubyte)(ctx->Fog.Color[2]*255.0F) << 0)); + + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + imesa->Setup[I830_CTXREG_FOGCOLOR] = (STATE3D_FOG_COLOR_CMD | color); + } +} + +/* ============================================================= + */ + +static void i830Enable(GLcontext *ctx, GLenum cap, GLboolean state) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + + switch(cap) { + case GL_LIGHTING: + case GL_COLOR_SUM_EXT: + update_specular( ctx ); + break; + + case GL_ALPHA_TEST: + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + imesa->Setup[I830_CTXREG_ENABLES_1] &= ~ENABLE_DIS_ALPHA_TEST_MASK; + if (state) + imesa->Setup[I830_CTXREG_ENABLES_1] |= ENABLE_ALPHA_TEST; + else + imesa->Setup[I830_CTXREG_ENABLES_1] |= DISABLE_ALPHA_TEST; + + break; + + case GL_BLEND: + case GL_COLOR_LOGIC_OP: + case GL_INDEX_LOGIC_OP: + i830EvalLogicOpBlendState(ctx); + break; + + case GL_DITHER: + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + imesa->Setup[I830_CTXREG_ENABLES_2] &= ~ENABLE_DITHER; + + if (state) + imesa->Setup[I830_CTXREG_ENABLES_2] |= ENABLE_DITHER; + else + imesa->Setup[I830_CTXREG_ENABLES_2] |= DISABLE_DITHER; + break; + + case GL_DEPTH_TEST: + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + imesa->Setup[I830_CTXREG_ENABLES_1] &= ~ENABLE_DIS_DEPTH_TEST_MASK; + + if (state) + imesa->Setup[I830_CTXREG_ENABLES_1] |= ENABLE_DEPTH_TEST; + else + imesa->Setup[I830_CTXREG_ENABLES_1] |= DISABLE_DEPTH_TEST; + + /* Also turn off depth writes when GL_DEPTH_TEST is disabled: + */ + i830DepthMask( ctx, state ); + break; + + case GL_SCISSOR_TEST: + I830_STATECHANGE(imesa, I830_UPLOAD_BUFFERS); + + if (state) + imesa->BufferSetup[I830_DESTREG_SENABLE] = + (STATE3D_SCISSOR_ENABLE_CMD | + ENABLE_SCISSOR_RECT); + else + imesa->BufferSetup[I830_DESTREG_SENABLE] = + (STATE3D_SCISSOR_ENABLE_CMD | + DISABLE_SCISSOR_RECT); + + imesa->upload_cliprects = GL_TRUE; + break; + + case GL_LINE_SMOOTH: + if (imesa->reduced_primitive == GL_LINES) { + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + + imesa->Setup[I830_CTXREG_AA] &= ~AA_LINE_ENABLE; + if (state) + imesa->Setup[I830_CTXREG_AA] |= AA_LINE_ENABLE; + else + imesa->Setup[I830_CTXREG_AA] |= AA_LINE_DISABLE; + } + break; + + case GL_FOG: + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + imesa->Setup[I830_CTXREG_ENABLES_1] &= ~ENABLE_DIS_FOG_MASK; + if (state) + imesa->Setup[I830_CTXREG_ENABLES_1] |= I830_ENABLE_FOG; + else + imesa->Setup[I830_CTXREG_ENABLES_1] |= I830_DISABLE_FOG; + break; + + case GL_CULL_FACE: + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + imesa->Setup[I830_CTXREG_STATE3] &= ~CULLMODE_MASK; + if (state) + imesa->Setup[I830_CTXREG_STATE3] |= (ENABLE_CULL_MODE | + imesa->LcsCullMode); + else + imesa->Setup[I830_CTXREG_STATE3] |= (ENABLE_CULL_MODE | + CULLMODE_NONE); + break; + + case GL_TEXTURE_2D: +/* I830_STATECHANGE(imesa, I830_UPLOAD_CTX); */ +/* imesa->Setup[I830_CTXREG_ENABLES_1] &= ~ENABLE_SPEC_ADD_MASK; */ + break; + + case GL_STENCIL_TEST: + if (imesa->hw_stencil) { + I830_STATECHANGE(imesa, I830_UPLOAD_CTX); + imesa->Setup[I830_CTXREG_ENABLES_1] &= ~ENABLE_STENCIL_TEST; + imesa->Setup[I830_CTXREG_ENABLES_2] &= ~ENABLE_STENCIL_WRITE; + + if (state) { + imesa->Setup[I830_CTXREG_ENABLES_1] |= ENABLE_STENCIL_TEST; + imesa->Setup[I830_CTXREG_ENABLES_2] |= ENABLE_STENCIL_WRITE; + } else { + imesa->Setup[I830_CTXREG_ENABLES_1] |= DISABLE_STENCIL_TEST; + imesa->Setup[I830_CTXREG_ENABLES_2] |= DISABLE_STENCIL_WRITE; + } + } else { + FALLBACK( imesa, I830_FALLBACK_STENCIL, state ); + } + break; + + case GL_POLYGON_STIPPLE: +#if 0 + /* The stipple command worked on my 855GM box, but not my 845G. + * I'll do more testing later to find out exactly which hardware + * supports it. Disabled for now. + */ + if (imesa->hw_stipple && imesa->reduced_primitive == GL_TRIANGLES) + { + I830_STATECHANGE(imesa, I830_UPLOAD_STIPPLE); + imesa->StippleSetup[I830_STPREG_ST1] &= ~ST1_ENABLE; + if (state) + imesa->StippleSetup[I830_STPREG_ST1] |= ST1_ENABLE; + } +#endif + break; + + default: + ; + } +} + + +void i830EmitDrawingRectangle( i830ContextPtr imesa ) +{ + __DRIdrawablePrivate *dPriv = imesa->driDrawable; + i830ScreenPrivate *i830Screen = imesa->i830Screen; + int x0 = imesa->drawX; + int y0 = imesa->drawY; + int x1 = x0 + dPriv->w; + int y1 = y0 + dPriv->h; + + /* Don't set drawing rectangle */ + if (I830_DEBUG & DEBUG_IOCTL) + fprintf(stderr, "%s x0(%d) x1(%d) y0(%d) y1(%d)\n", __FUNCTION__, + x0, x1, y0, y1); + + /* Coordinate origin of the window - may be offscreen. + */ + imesa->BufferSetup[I830_DESTREG_DR4] = ((y0<<16) | + (((unsigned)x0)&0xFFFF)); + + /* Clip to screen. + */ + if (x0 < 0) x0 = 0; + if (y0 < 0) y0 = 0; + if (x1 > i830Screen->width-1) x1 = i830Screen->width-1; + if (y1 > i830Screen->height-1) y1 = i830Screen->height-1; + + + /* Onscreen drawing rectangle. + */ + imesa->BufferSetup[I830_DESTREG_DR2] = ((y0<<16) | x0); + imesa->BufferSetup[I830_DESTREG_DR3] = (((y1+1)<<16) | (x1+1)); + + + /* Just add in our dirty flag, since we might be called when locked */ + /* Might want to modify how this is done. */ + imesa->dirty |= I830_UPLOAD_BUFFERS; + + if (0) + fprintf(stderr, "[%s] DR2(0x%08x) DR3(0x%08x) DR4(0x%08x)\n", + __FUNCTION__, + imesa->BufferSetup[I830_DESTREG_DR2], + imesa->BufferSetup[I830_DESTREG_DR3], + imesa->BufferSetup[I830_DESTREG_DR4]); +} + +/* This could be done in hardware, will do once I have the driver + * up and running. + */ +static void i830CalcViewport( GLcontext *ctx ) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + const GLfloat *v = ctx->Viewport._WindowMap.m; + GLfloat *m = imesa->ViewportMatrix.m; + + /* See also i830_translate_vertex. SUBPIXEL adjustments can be done + * via state vars, too. + */ + m[MAT_SX] = v[MAT_SX]; + m[MAT_TX] = v[MAT_TX] + SUBPIXEL_X; + m[MAT_SY] = - v[MAT_SY]; + m[MAT_TY] = - v[MAT_TY] + imesa->driDrawable->h + SUBPIXEL_Y; + m[MAT_SZ] = v[MAT_SZ] * imesa->depth_scale; + m[MAT_TZ] = v[MAT_TZ] * imesa->depth_scale; +} + +static void i830Viewport( GLcontext *ctx, + GLint x, GLint y, + GLsizei width, GLsizei height ) +{ + /* update size of Mesa/software ancillary buffers */ + _mesa_ResizeBuffersMESA(); + i830CalcViewport( ctx ); +} + +static void i830DepthRange( GLcontext *ctx, + GLclampd nearval, GLclampd farval ) +{ + i830CalcViewport( ctx ); +} + +void i830PrintDirty( const char *msg, GLuint state ) +{ + fprintf(stderr, "%s (0x%x): %s%s%s%s%s%s%s%s%s%s%s\n", + msg, + (unsigned int) state, + (state & I830_UPLOAD_TEX0) ? "upload-tex0, " : "", + (state & I830_UPLOAD_TEX1) ? "upload-tex1, " : "", + (state & I830_UPLOAD_TEX2) ? "upload-tex2, " : "", + (state & I830_UPLOAD_TEX3) ? "upload-tex3, " : "", + (state & I830_UPLOAD_CTX) ? "upload-ctx, " : "", + (state & I830_UPLOAD_BUFFERS) ? "upload-bufs, " : "", + (state & I830_UPLOAD_TEXBLEND0) ? "upload-blend0, " : "", + (state & I830_UPLOAD_TEXBLEND1) ? "upload-blend1, " : "", + (state & I830_UPLOAD_TEXBLEND2) ? "upload-blend2, " : "", + (state & I830_UPLOAD_TEXBLEND3) ? "upload-blend3, " : "", + (state & I830_UPLOAD_STIPPLE) ? "stipple, " : "" + ); +} + +/* Push the state into the sarea and/or texture memory. + */ +void i830EmitHwStateLocked( i830ContextPtr imesa ) +{ + int i; + + if (I830_DEBUG & DEBUG_STATE) + i830PrintDirty( __FUNCTION__, imesa->dirty ); + + for ( i = 0 ; i < imesa->glCtx->Const.MaxTextureUnits ; i++ ) { + if ( ((imesa->dirty & I830_UPLOAD_TEX_N_IMAGE( i )) != 0) + && (imesa->CurrentTexObj[i] != NULL) ) { + i830UploadTexImagesLocked(imesa, imesa->CurrentTexObj[i]); + } + } + + if (imesa->dirty & I830_UPLOAD_CTX) { + memcpy( imesa->sarea->ContextState, + imesa->Setup, sizeof(imesa->Setup) ); + } + + for ( i = 0 ; i < imesa->glCtx->Const.MaxTextureUnits ; i++ ) { + if ((imesa->dirty & I830_UPLOAD_TEX_N(i)) && imesa->CurrentTexObj[i]) { + unsigned * TexState; + + imesa->sarea->dirty |= I830_UPLOAD_TEX_N(i); + + switch( i ) { + case 0: + case 1: + TexState = imesa->sarea->TexState[i]; + break; + + case 2: + TexState = imesa->sarea->TexState2; + break; + + case 3: + TexState = imesa->sarea->TexState3; + break; + } + + memcpy(TexState, imesa->CurrentTexObj[i]->Setup, + sizeof(imesa->sarea->TexState[i])); + + TexState[I830_TEXREG_TM0S3] &= ~TM0S3_LOD_BIAS_MASK; + TexState[I830_TEXREG_TM0S3] |= imesa->LodBias[i]; + + /* Update the LRU usage */ + if (imesa->CurrentTexObj[i]->base.memBlock) + driUpdateTextureLRU( (driTextureObject *) + imesa->CurrentTexObj[i] ); + } + } + /* Need to figure out if texturing state, or enable changed. */ + + for ( i = 0 ; i < imesa->glCtx->Const.MaxTextureUnits ; i++ ) { + if (imesa->dirty & I830_UPLOAD_TEXBLEND_N(i)) { + unsigned * TexBlendState; + unsigned * words_used; + + imesa->sarea->dirty |= I830_UPLOAD_TEXBLEND_N(i); + + switch( i ) { + case 0: + case 1: + TexBlendState = imesa->sarea->TexBlendState[i]; + words_used = & imesa->sarea->TexBlendStateWordsUsed[i]; + break; + + case 2: + TexBlendState = imesa->sarea->TexBlendState2; + words_used = & imesa->sarea->TexBlendStateWordsUsed2; + break; + + case 3: + TexBlendState = imesa->sarea->TexBlendState3; + words_used = & imesa->sarea->TexBlendStateWordsUsed3; + break; + } + + memcpy(TexBlendState, imesa->TexBlend[i], + imesa->TexBlendWordsUsed[i] * 4); + *words_used = imesa->TexBlendWordsUsed[i]; + } + } + + if (imesa->dirty & I830_UPLOAD_BUFFERS) { + memcpy( imesa->sarea->BufferState,imesa->BufferSetup, + sizeof(imesa->BufferSetup) ); + } + + if (imesa->dirty & I830_UPLOAD_STIPPLE) { + memcpy( imesa->sarea->StippleState,imesa->StippleSetup, + sizeof(imesa->StippleSetup) ); + } + + if (imesa->dirty & I830_UPLOAD_TEX_PALETTE_SHARED) { + memcpy( imesa->sarea->Palette[0],imesa->palette, + sizeof(imesa->sarea->Palette[0])); + } else { + i830TextureObjectPtr p; + if (imesa->dirty & I830_UPLOAD_TEX_PALETTE_N(0)) { + p = imesa->CurrentTexObj[0]; + memcpy( imesa->sarea->Palette[0],p->palette, + sizeof(imesa->sarea->Palette[0])); + } + if (imesa->dirty & I830_UPLOAD_TEX_PALETTE_N(1)) { + p = imesa->CurrentTexObj[1]; + memcpy( imesa->sarea->Palette[1], + p->palette, + sizeof(imesa->sarea->Palette[1])); + } + } + + imesa->sarea->dirty |= (imesa->dirty & ~(I830_UPLOAD_TEX_MASK | + I830_UPLOAD_TEXBLEND_MASK)); + + imesa->upload_cliprects = GL_TRUE; + imesa->dirty = 0; +} + + +void i830DDInitState( GLcontext *ctx ) +{ + i830ContextPtr imesa = I830_CONTEXT(ctx); + i830ScreenPrivate *i830Screen = imesa->i830Screen; + int i; + + imesa->clear_red = 0; + imesa->clear_green = 0; + imesa->clear_blue = 0; + imesa->clear_alpha = 0; + + imesa->mask_red = GL_FALSE; + imesa->mask_green = GL_FALSE; + imesa->mask_blue = GL_FALSE; + imesa->mask_alpha = GL_FALSE; + + /* Zero all texture state */ + for (i = 0; i < I830_MAX_TEXTURE_UNITS; i++) { + (void) memset( imesa->TexBlend[i], 0, sizeof( imesa->TexBlend[i] ) ); + (void) memset( imesa->Init_TexBlend[i], 0, sizeof( imesa->Init_TexBlend[i] ) ); + + imesa->TexBlendWordsUsed[i] = 0; + imesa->Init_TexBlendWordsUsed[i] = 0; + } + + /* Set default blend state */ + imesa->TexBlend[0][0] = (STATE3D_MAP_BLEND_OP_CMD(0) | + TEXPIPE_COLOR | + ENABLE_TEXOUTPUT_WRT_SEL | + TEXOP_OUTPUT_CURRENT | + DISABLE_TEX_CNTRL_STAGE | + TEXOP_SCALE_1X | + TEXOP_MODIFY_PARMS | + TEXOP_LAST_STAGE | + TEXBLENDOP_ARG1); + imesa->TexBlend[0][1] = (STATE3D_MAP_BLEND_OP_CMD(0) | + TEXPIPE_ALPHA | + ENABLE_TEXOUTPUT_WRT_SEL | + TEXOP_OUTPUT_CURRENT | + TEXOP_SCALE_1X | + TEXOP_MODIFY_PARMS | + TEXBLENDOP_ARG1); + imesa->TexBlend[0][2] = (STATE3D_MAP_BLEND_ARG_CMD(0) | + TEXPIPE_COLOR | + TEXBLEND_ARG1 | + TEXBLENDARG_MODIFY_PARMS | + TEXBLENDARG_DIFFUSE); + imesa->TexBlend[0][3] = (STATE3D_MAP_BLEND_ARG_CMD(0) | + TEXPIPE_ALPHA | + TEXBLEND_ARG1 | + TEXBLENDARG_MODIFY_PARMS | + TEXBLENDARG_DIFFUSE); + + imesa->TexBlendWordsUsed[0] = 4; + + imesa->Init_TexBlend[0][0] = (STATE3D_MAP_BLEND_OP_CMD(0) | + TEXPIPE_COLOR | + ENABLE_TEXOUTPUT_WRT_SEL | + TEXOP_OUTPUT_CURRENT | + DISABLE_TEX_CNTRL_STAGE | + TEXOP_SCALE_1X | + TEXOP_MODIFY_PARMS | + TEXOP_LAST_STAGE | + TEXBLENDOP_ARG1); + imesa->Init_TexBlend[0][1] = (STATE3D_MAP_BLEND_OP_CMD(0) | + TEXPIPE_ALPHA | + ENABLE_TEXOUTPUT_WRT_SEL | + TEXOP_OUTPUT_CURRENT | + TEXOP_SCALE_1X | + TEXOP_MODIFY_PARMS | + TEXBLENDOP_ARG1); + imesa->Init_TexBlend[0][2] = (STATE3D_MAP_BLEND_ARG_CMD(0) | + TEXPIPE_COLOR | + TEXBLEND_ARG1 | + TEXBLENDARG_MODIFY_PARMS | + TEXBLENDARG_CURRENT); + imesa->Init_TexBlend[0][3] = (STATE3D_MAP_BLEND_ARG_CMD(0) | + TEXPIPE_ALPHA | + TEXBLEND_ARG1 | + TEXBLENDARG_MODIFY_PARMS | + TEXBLENDARG_CURRENT); + imesa->Init_TexBlendWordsUsed[0] = 4; + + memset(imesa->Setup, 0, sizeof(imesa->Setup)); + + imesa->Setup[I830_CTXREG_VF] = 0; + imesa->Setup[I830_CTXREG_VF2] = 0; + + imesa->Setup[I830_CTXREG_AA] = (STATE3D_AA_CMD | + AA_LINE_ECAAR_WIDTH_ENABLE | + AA_LINE_ECAAR_WIDTH_1_0 | + AA_LINE_REGION_WIDTH_ENABLE | + AA_LINE_REGION_WIDTH_1_0 | + AA_LINE_DISABLE); + + imesa->Setup[I830_CTXREG_ENABLES_1] = (STATE3D_ENABLES_1_CMD | + DISABLE_LOGIC_OP | + DISABLE_STENCIL_TEST | + DISABLE_DEPTH_BIAS | + DISABLE_SPEC_ADD | + I830_DISABLE_FOG | + DISABLE_ALPHA_TEST | + DISABLE_COLOR_BLEND | + DISABLE_DEPTH_TEST); + + if (imesa->hw_stencil) { + imesa->Setup[I830_CTXREG_ENABLES_2] = (STATE3D_ENABLES_2_CMD | + ENABLE_STENCIL_WRITE | + ENABLE_TEX_CACHE | + ENABLE_DITHER | + ENABLE_COLOR_MASK | + /* set no color comps disabled */ + ENABLE_COLOR_WRITE | + ENABLE_DEPTH_WRITE); + } else { + imesa->Setup[I830_CTXREG_ENABLES_2] = (STATE3D_ENABLES_2_CMD | + DISABLE_STENCIL_WRITE | + ENABLE_TEX_CACHE | + ENABLE_DITHER | + ENABLE_COLOR_MASK | + /* set no color comps disabled */ + ENABLE_COLOR_WRITE | + ENABLE_DEPTH_WRITE); + } + + imesa->Setup[I830_CTXREG_STATE1] = (STATE3D_MODES_1_CMD | + ENABLE_COLR_BLND_FUNC | + BLENDFUNC_ADD | + ENABLE_SRC_BLND_FACTOR | + SRC_BLND_FACT(BLENDFACT_ONE) | + ENABLE_DST_BLND_FACTOR | + DST_BLND_FACT(BLENDFACT_ZERO) ); + + imesa->Setup[I830_CTXREG_STATE2] = (STATE3D_MODES_2_CMD | + ENABLE_GLOBAL_DEPTH_BIAS | + GLOBAL_DEPTH_BIAS(0) | + ENABLE_ALPHA_TEST_FUNC | + ALPHA_TEST_FUNC(COMPAREFUNC_ALWAYS) | + ALPHA_REF_VALUE(0) ); + + imesa->Setup[I830_CTXREG_STATE3] = (STATE3D_MODES_3_CMD | + ENABLE_DEPTH_TEST_FUNC | + DEPTH_TEST_FUNC(COMPAREFUNC_LESS) | + ENABLE_ALPHA_SHADE_MODE | + ALPHA_SHADE_MODE(SHADE_MODE_LINEAR) | + ENABLE_FOG_SHADE_MODE | + FOG_SHADE_MODE(SHADE_MODE_LINEAR) | + ENABLE_SPEC_SHADE_MODE | + SPEC_SHADE_MODE(SHADE_MODE_LINEAR) | + ENABLE_COLOR_SHADE_MODE | + COLOR_SHADE_MODE(SHADE_MODE_LINEAR) | + ENABLE_CULL_MODE | + CULLMODE_NONE); + + imesa->Setup[I830_CTXREG_STATE4] = (STATE3D_MODES_4_CMD | + ENABLE_LOGIC_OP_FUNC | + LOGIC_OP_FUNC(LOGICOP_COPY) | + ENABLE_STENCIL_TEST_MASK | + STENCIL_TEST_MASK(0xff) | + ENABLE_STENCIL_WRITE_MASK | + STENCIL_WRITE_MASK(0xff)); + + imesa->Setup[I830_CTXREG_STENCILTST] = (STATE3D_STENCIL_TEST_CMD | + ENABLE_STENCIL_PARMS | + STENCIL_FAIL_OP(STENCILOP_KEEP) | + STENCIL_PASS_DEPTH_FAIL_OP(STENCILOP_KEEP) | + STENCIL_PASS_DEPTH_PASS_OP(STENCILOP_KEEP) | + ENABLE_STENCIL_TEST_FUNC | + STENCIL_TEST_FUNC(COMPAREFUNC_ALWAYS) | + ENABLE_STENCIL_REF_VALUE | + STENCIL_REF_VALUE(0) ); + + imesa->Setup[I830_CTXREG_STATE5] = (STATE3D_MODES_5_CMD | + FLUSH_TEXTURE_CACHE | + ENABLE_SPRITE_POINT_TEX | + SPRITE_POINT_TEX_OFF | + ENABLE_FIXED_LINE_WIDTH | + FIXED_LINE_WIDTH(0x2) | /* 1.0 */ + ENABLE_FIXED_POINT_WIDTH | + FIXED_POINT_WIDTH(1) ); + + imesa->Setup[I830_CTXREG_IALPHAB] = (STATE3D_INDPT_ALPHA_BLEND_CMD | + DISABLE_INDPT_ALPHA_BLEND | + ENABLE_ALPHA_BLENDFUNC | + ABLENDFUNC_ADD); + + imesa->Setup[I830_CTXREG_FOGCOLOR] = (STATE3D_FOG_COLOR_CMD | + FOG_COLOR_RED(0) | + FOG_COLOR_GREEN(0) | + FOG_COLOR_BLUE(0)); + + imesa->Setup[I830_CTXREG_BLENDCOLR0] = (STATE3D_CONST_BLEND_COLOR_CMD); + + imesa->Setup[I830_CTXREG_BLENDCOLR] = 0; + + imesa->Setup[I830_CTXREG_MCSB0] = STATE3D_MAP_COORD_SETBIND_CMD; + imesa->Setup[I830_CTXREG_MCSB1] = (TEXBIND_SET3(TEXCOORDSRC_VTXSET_3) | + TEXBIND_SET2(TEXCOORDSRC_VTXSET_2) | + TEXBIND_SET1(TEXCOORDSRC_VTXSET_1) | + TEXBIND_SET0(TEXCOORDSRC_VTXSET_0)); + + imesa->LcsCullMode = CULLMODE_CW; /* GL default */ + + memset(imesa->BufferSetup, 0, sizeof(imesa->BufferSetup)); + memset(imesa->StippleSetup, 0, sizeof(imesa->StippleSetup)); + + + if (imesa->glCtx->Visual.doubleBufferMode && + imesa->sarea->pf_current_page == 0) { + imesa->drawMap = i830Screen->back.map; + imesa->readMap = i830Screen->back.map; + imesa->BufferSetup[I830_DESTREG_CBUFADDR] = i830Screen->backOffset; + imesa->BufferSetup[I830_DESTREG_DBUFADDR] = 0; + } else { + /* use front buffer by default */ + imesa->drawMap = (char *)imesa->driScreen->pFB; + imesa->readMap = (char *)imesa->driScreen->pFB; + imesa->BufferSetup[I830_DESTREG_CBUFADDR] = i830Screen->fbOffset; + imesa->BufferSetup[I830_DESTREG_DBUFADDR] = 0; + } + + imesa->BufferSetup[I830_DESTREG_DV0] = STATE3D_DST_BUF_VARS_CMD; + + switch (i830Screen->fbFormat) { + case DV_PF_555: + case DV_PF_565: + imesa->BufferSetup[I830_DESTREG_DV1] = (DSTORG_HORT_BIAS(0x8) | /* .5 */ + DSTORG_VERT_BIAS(0x8) | /* .5 */ + i830Screen->fbFormat | + DEPTH_IS_Z | + DEPTH_FRMT_16_FIXED); + break; + case DV_PF_8888: + imesa->BufferSetup[I830_DESTREG_DV1] = (DSTORG_HORT_BIAS(0x8) | /* .5 */ + DSTORG_VERT_BIAS(0x8) | /* .5 */ + i830Screen->fbFormat | + DEPTH_IS_Z | + DEPTH_FRMT_24_FIXED_8_OTHER); + break; + } + imesa->BufferSetup[I830_DESTREG_SENABLE] = (STATE3D_SCISSOR_ENABLE_CMD | + DISABLE_SCISSOR_RECT); + imesa->BufferSetup[I830_DESTREG_SR0] = STATE3D_SCISSOR_RECT_0_CMD; + imesa->BufferSetup[I830_DESTREG_SR1] = 0; + imesa->BufferSetup[I830_DESTREG_SR2] = 0; + + imesa->BufferSetup[I830_DESTREG_DR0] = STATE3D_DRAW_RECT_CMD; + imesa->BufferSetup[I830_DESTREG_DR1] = 0; + imesa->BufferSetup[I830_DESTREG_DR2] = 0; + imesa->BufferSetup[I830_DESTREG_DR3] = (((i830Screen->height)<<16) | + (i830Screen->width)); + imesa->BufferSetup[I830_DESTREG_DR4] = 0; + + memcpy( imesa->Init_Setup, + imesa->Setup, + sizeof(imesa->Setup) ); + memcpy( imesa->Init_BufferSetup, + imesa->BufferSetup, + sizeof(imesa->BufferSetup) ); + +} + +static void i830InvalidateState( 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 ); + I830_CONTEXT(ctx)->NewGLState |= new_state; +} + +void i830DDInitStateFuncs(GLcontext *ctx) +{ + /* Callbacks for internal Mesa events. + */ + ctx->Driver.UpdateState = i830InvalidateState; + + /* API callbacks + */ + ctx->Driver.AlphaFunc = i830AlphaFunc; + ctx->Driver.BlendEquationSeparate = i830BlendEquationSeparate; + ctx->Driver.BlendFuncSeparate = i830BlendFuncSeparate; + ctx->Driver.BlendColor = i830BlendColor; + ctx->Driver.ClearColor = i830ClearColor; + ctx->Driver.ColorMask = i830ColorMask; + ctx->Driver.CullFace = i830CullFaceFrontFace; + ctx->Driver.DepthFunc = i830DepthFunc; + ctx->Driver.DepthMask = i830DepthMask; + ctx->Driver.Enable = i830Enable; + ctx->Driver.Fogfv = i830Fogfv; + ctx->Driver.FrontFace = i830CullFaceFrontFace; + ctx->Driver.LineWidth = i830LineWidth; + ctx->Driver.PointSize = i830PointSize; + ctx->Driver.LogicOpcode = i830LogicOp; + ctx->Driver.PolygonStipple = i830PolygonStippleFallback; + ctx->Driver.RenderMode = i830RenderMode; + ctx->Driver.Scissor = i830Scissor; + ctx->Driver.DrawBuffer = i830DrawBuffer; + ctx->Driver.ReadBuffer = i830ReadBuffer; + ctx->Driver.ShadeModel = i830ShadeModel; + ctx->Driver.DepthRange = i830DepthRange; + ctx->Driver.Viewport = i830Viewport; + ctx->Driver.LightModelfv = i830LightModelfv; + + ctx->Driver.StencilFunc = i830StencilFunc; + ctx->Driver.StencilMask = i830StencilMask; + ctx->Driver.StencilOp = i830StencilOp; + + /* 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; + + /* 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; +} |