diff options
Diffstat (limited to 'src/mesa/drivers/dri/mach64/mach64_state.c')
| -rw-r--r-- | src/mesa/drivers/dri/mach64/mach64_state.c | 1213 |
1 files changed, 1213 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/mach64/mach64_state.c b/src/mesa/drivers/dri/mach64/mach64_state.c new file mode 100644 index 00000000000..2c8e20d573f --- /dev/null +++ b/src/mesa/drivers/dri/mach64/mach64_state.c @@ -0,0 +1,1213 @@ +/* $XFree86$ */ /* -*- mode: c; c-basic-offset: 3 -*- */ +/* + * Copyright 2000 Gareth Hughes + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * GARETH HUGHES 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. + */ + +/* + * Authors: + * Gareth Hughes <[email protected]> + * Leif Delgass <[email protected]> + * Jos� Fonseca <[email protected]> + */ + +#include "mach64_context.h" +#include "mach64_state.h" +#include "mach64_ioctl.h" +#include "mach64_tris.h" +#include "mach64_vb.h" +#include "mach64_tex.h" + +#include "context.h" +#include "enums.h" +#include "colormac.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" + + +/* ============================================================= + * Alpha blending + */ + +static void mach64UpdateAlphaMode( GLcontext *ctx ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + GLuint a = mmesa->setup.alpha_tst_cntl; + GLuint s = mmesa->setup.scale_3d_cntl; + GLuint m = mmesa->setup.dp_write_mask; + + if ( ctx->Color.AlphaEnabled ) { + GLubyte ref; + + CLAMPED_FLOAT_TO_UBYTE(ref, ctx->Color.AlphaRef); + + a &= ~(MACH64_ALPHA_TEST_MASK | MACH64_REF_ALPHA_MASK); + + switch ( ctx->Color.AlphaFunc ) { + case GL_NEVER: + a |= MACH64_ALPHA_TEST_NEVER; + break; + case GL_LESS: + a |= MACH64_ALPHA_TEST_LESS; + break; + case GL_LEQUAL: + a |= MACH64_ALPHA_TEST_LEQUAL; + break; + case GL_EQUAL: + a |= MACH64_ALPHA_TEST_EQUAL; + break; + case GL_GEQUAL: + a |= MACH64_ALPHA_TEST_GEQUAL; + break; + case GL_GREATER: + a |= MACH64_ALPHA_TEST_GREATER; + break; + case GL_NOTEQUAL: + a |= MACH64_ALPHA_TEST_NOTEQUAL; + break; + case GL_ALWAYS: + a |= MACH64_ALPHA_TEST_ALWAYS; + break; + } + + a |= (ref << MACH64_REF_ALPHA_SHIFT); + a |= MACH64_ALPHA_TEST_EN; + } else { + a &= ~MACH64_ALPHA_TEST_EN; + } + + FALLBACK( mmesa, MACH64_FALLBACK_BLEND_FUNC, GL_FALSE ); + + if ( ctx->Color.BlendEnabled ) { + s &= ~(MACH64_ALPHA_BLEND_SRC_MASK | + MACH64_ALPHA_BLEND_DST_MASK | + MACH64_ALPHA_BLEND_SAT); + + switch ( ctx->Color.BlendSrcRGB ) { + case GL_ZERO: + s |= MACH64_ALPHA_BLEND_SRC_ZERO; + break; + case GL_ONE: + s |= MACH64_ALPHA_BLEND_SRC_ONE; + break; + case GL_DST_COLOR: + s |= MACH64_ALPHA_BLEND_SRC_DSTCOLOR; + break; + case GL_ONE_MINUS_DST_COLOR: + s |= MACH64_ALPHA_BLEND_SRC_INVDSTCOLOR; + break; + case GL_SRC_ALPHA: + s |= MACH64_ALPHA_BLEND_SRC_SRCALPHA; + break; + case GL_ONE_MINUS_SRC_ALPHA: + s |= MACH64_ALPHA_BLEND_SRC_INVSRCALPHA; + break; + case GL_DST_ALPHA: + s |= MACH64_ALPHA_BLEND_SRC_DSTALPHA; + break; + case GL_ONE_MINUS_DST_ALPHA: + s |= MACH64_ALPHA_BLEND_SRC_INVDSTALPHA; + break; + case GL_SRC_ALPHA_SATURATE: + s |= (MACH64_ALPHA_BLEND_SRC_SRCALPHA | + MACH64_ALPHA_BLEND_SAT); + break; + default: + FALLBACK( mmesa, MACH64_FALLBACK_BLEND_FUNC, GL_TRUE ); + } + + switch ( ctx->Color.BlendDstRGB ) { + case GL_ZERO: + s |= MACH64_ALPHA_BLEND_DST_ZERO; + break; + case GL_ONE: + s |= MACH64_ALPHA_BLEND_DST_ONE; + break; + case GL_SRC_COLOR: + s |= MACH64_ALPHA_BLEND_DST_SRCCOLOR; + break; + case GL_ONE_MINUS_SRC_COLOR: + s |= MACH64_ALPHA_BLEND_DST_INVSRCCOLOR; + break; + case GL_SRC_ALPHA: + s |= MACH64_ALPHA_BLEND_DST_SRCALPHA; + break; + case GL_ONE_MINUS_SRC_ALPHA: + s |= MACH64_ALPHA_BLEND_DST_INVSRCALPHA; + break; + case GL_DST_ALPHA: + s |= MACH64_ALPHA_BLEND_DST_DSTALPHA; + break; + case GL_ONE_MINUS_DST_ALPHA: + s |= MACH64_ALPHA_BLEND_DST_INVDSTALPHA; + break; + default: + FALLBACK( mmesa, MACH64_FALLBACK_BLEND_FUNC, GL_TRUE ); + } + + m = 0xffffffff; /* Can't color mask and blend at the same time */ + s &= ~MACH64_ALPHA_FOG_EN_FOG; /* Can't fog and blend at the same time */ + s |= MACH64_ALPHA_FOG_EN_ALPHA; + } else { + s &= ~MACH64_ALPHA_FOG_EN_ALPHA; + } + + if ( mmesa->setup.alpha_tst_cntl != a ) { + mmesa->setup.alpha_tst_cntl = a; + mmesa->dirty |= MACH64_UPLOAD_Z_ALPHA_CNTL; + } + if ( mmesa->setup.scale_3d_cntl != s ) { + mmesa->setup.scale_3d_cntl = s; + mmesa->dirty |= MACH64_UPLOAD_SCALE_3D_CNTL; + } + if ( mmesa->setup.dp_write_mask != m ) { + mmesa->setup.dp_write_mask = m; + mmesa->dirty |= MACH64_UPLOAD_DP_WRITE_MASK; + } +} + +static void mach64DDAlphaFunc( GLcontext *ctx, GLenum func, GLfloat ref ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + + FLUSH_BATCH( mmesa ); + mmesa->new_state |= MACH64_NEW_ALPHA; +} + +static void mach64DDBlendEquationSeparate( GLcontext *ctx, + GLenum modeRGB, GLenum modeA ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + + assert( modeRGB == modeA ); + FLUSH_BATCH( mmesa ); + + /* BlendEquation affects ColorLogicOpEnabled + */ + FALLBACK( MACH64_CONTEXT(ctx), MACH64_FALLBACK_LOGICOP, + (ctx->Color.ColorLogicOpEnabled && + ctx->Color.LogicOp != GL_COPY)); + + /* Can only do blend addition, not min, max, subtract, etc. */ + FALLBACK( MACH64_CONTEXT(ctx), MACH64_FALLBACK_BLEND_EQ, + modeRGB != GL_FUNC_ADD); + + mmesa->new_state |= MACH64_NEW_ALPHA; +} + +static void mach64DDBlendFuncSeparate( GLcontext *ctx, + GLenum sfactorRGB, GLenum dfactorRGB, + GLenum sfactorA, GLenum dfactorA ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + + FLUSH_BATCH( mmesa ); + mmesa->new_state |= MACH64_NEW_ALPHA; +} + + +/* ============================================================= + * Depth testing + */ + +static void mach64UpdateZMode( GLcontext *ctx ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + GLuint z = mmesa->setup.z_cntl; + + if ( MACH64_DEBUG & DEBUG_VERBOSE_MSG ) { + fprintf( stderr, "%s:\n", __FUNCTION__ ); + } + + if ( ctx->Depth.Test ) { + z &= ~MACH64_Z_TEST_MASK; + + switch ( ctx->Depth.Func ) { + case GL_NEVER: + z |= MACH64_Z_TEST_NEVER; + break; + case GL_ALWAYS: + z |= MACH64_Z_TEST_ALWAYS; + break; + case GL_LESS: + z |= MACH64_Z_TEST_LESS; + break; + case GL_LEQUAL: + z |= MACH64_Z_TEST_LEQUAL; + break; + case GL_EQUAL: + z |= MACH64_Z_TEST_EQUAL; + break; + case GL_GEQUAL: + z |= MACH64_Z_TEST_GEQUAL; + break; + case GL_GREATER: + z |= MACH64_Z_TEST_GREATER; + break; + case GL_NOTEQUAL: + z |= MACH64_Z_TEST_NOTEQUAL; + break; + } + + z |= MACH64_Z_EN; + } else { + z &= ~MACH64_Z_EN; + } + + if ( ctx->Depth.Mask ) { + z |= MACH64_Z_MASK_EN; + } else { + z &= ~MACH64_Z_MASK_EN; + } + + if ( mmesa->setup.z_cntl != z ) { + mmesa->setup.z_cntl = z; + mmesa->dirty |= MACH64_UPLOAD_Z_ALPHA_CNTL; + } +} + +static void mach64DDDepthFunc( GLcontext *ctx, GLenum func ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + + FLUSH_BATCH( mmesa ); + mmesa->new_state |= MACH64_NEW_DEPTH; +} + +static void mach64DDDepthMask( GLcontext *ctx, GLboolean flag ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + + FLUSH_BATCH( mmesa ); + mmesa->new_state |= MACH64_NEW_DEPTH; +} + +static void mach64DDClearDepth( GLcontext *ctx, GLclampd d ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + + /* Always have a 16-bit depth buffer. + */ + mmesa->ClearDepth = d * 0xffff; +} + + +/* ============================================================= + * Fog + */ + +static void mach64UpdateFogAttrib( GLcontext *ctx ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + + CARD32 s = mmesa->setup.scale_3d_cntl; + GLubyte c[4]; + CARD32 col; + + /* Can't fog if blending is on */ + if ( ctx->Color.BlendEnabled ) + return; + + if ( ctx->Fog.Enabled ) { + s |= MACH64_ALPHA_FOG_EN_FOG; + s &= ~(MACH64_ALPHA_BLEND_SRC_MASK | + MACH64_ALPHA_BLEND_DST_MASK | + MACH64_ALPHA_BLEND_SAT); + /* From Utah-glx: "fog color is now dest and fog factor is alpha, so + * use GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA" + */ + s |= (MACH64_ALPHA_BLEND_SRC_SRCALPHA | + MACH64_ALPHA_BLEND_DST_INVSRCALPHA); + /* From Utah-glx: "can't use texture alpha when fogging" */ + s &= ~MACH64_TEX_MAP_AEN; + } else { + s &= ~(MACH64_ALPHA_BLEND_SRC_MASK | + MACH64_ALPHA_BLEND_DST_MASK | + MACH64_ALPHA_BLEND_SAT); + s |= (MACH64_ALPHA_BLEND_SRC_ONE | + MACH64_ALPHA_BLEND_DST_ZERO); + s &= ~MACH64_ALPHA_FOG_EN_FOG; + } + + c[0] = FLOAT_TO_UBYTE( ctx->Fog.Color[0] ); + c[1] = FLOAT_TO_UBYTE( ctx->Fog.Color[1] ); + c[2] = FLOAT_TO_UBYTE( ctx->Fog.Color[2] ); + c[3] = FLOAT_TO_UBYTE( ctx->Fog.Color[3] ); + + col = mach64PackColor( 4, c[0], c[1], c[2], c[3] ); + + if ( mmesa->setup.dp_fog_clr != col ) { + mmesa->setup.dp_fog_clr = col; + mmesa->dirty |= MACH64_UPLOAD_DP_FOG_CLR; + } + if ( mmesa->setup.scale_3d_cntl != s ) { + mmesa->setup.scale_3d_cntl = s; + mmesa->dirty |= MACH64_UPLOAD_SCALE_3D_CNTL; + } + +} + +static void mach64DDFogfv( GLcontext *ctx, GLenum pname, const GLfloat *param ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + + FLUSH_BATCH( mmesa ); + mmesa->new_state |= MACH64_NEW_FOG; +} + + +/* ============================================================= + * Clipping + */ + +static void mach64UpdateClipping( GLcontext *ctx ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + mach64ScreenPtr mach64Screen = mmesa->mach64Screen; + + if ( mmesa->driDrawable ) { + __DRIdrawablePrivate *drawable = mmesa->driDrawable; + int x1 = 0; + int y1 = 0; + int x2 = drawable->w - 1; + int y2 = drawable->h - 1; + + if ( ctx->Scissor.Enabled ) { + if ( ctx->Scissor.X > x1 ) { + x1 = ctx->Scissor.X; + } + if ( drawable->h - ctx->Scissor.Y - ctx->Scissor.Height > y1 ) { + y1 = drawable->h - ctx->Scissor.Y - ctx->Scissor.Height; + } + if ( ctx->Scissor.X + ctx->Scissor.Width - 1 < x2 ) { + x2 = ctx->Scissor.X + ctx->Scissor.Width - 1; + } + if ( drawable->h - ctx->Scissor.Y - 1 < y2 ) { + y2 = drawable->h - ctx->Scissor.Y - 1; + } + } + + x1 += drawable->x; + y1 += drawable->y; + x2 += drawable->x; + y2 += drawable->y; + + /* clamp to screen borders */ + if (x1 < 0) x1 = 0; + if (y1 < 0) y1 = 0; + if (x2 < 0) x2 = 0; + if (y2 < 0) y2 = 0; + if (x2 > mach64Screen->width-1) x2 = mach64Screen->width-1; + if (y2 > mach64Screen->height-1) y2 = mach64Screen->height-1; + + if ( MACH64_DEBUG & DEBUG_VERBOSE_MSG ) { + fprintf( stderr, "%s: drawable %3d %3d %3d %3d\n", + __FUNCTION__, + drawable->x, + drawable->y, + drawable->w, + drawable->h ); + fprintf( stderr, "%s: scissor %3d %3d %3d %3d\n", + __FUNCTION__, + ctx->Scissor.X, + ctx->Scissor.Y, + ctx->Scissor.Width, + ctx->Scissor.Height ); + fprintf( stderr, "%s: final %3d %3d %3d %3d\n", + __FUNCTION__, x1, y1, x2, y2 ); + fprintf( stderr, "\n" ); + } + + mmesa->setup.sc_top_bottom = ((y1 << 0) | + (y2 << 16)); + + mmesa->setup.sc_left_right = ((x1 << 0) | + (x2 << 16)); + + /* UPLOAD_MISC reduces the dirty state, we just need to + * emit the scissor to the SAREA. We need to dirty cliprects + * since the scissor and cliprects are intersected to update the + * single hardware scissor + */ + mmesa->dirty |= MACH64_UPLOAD_MISC | MACH64_UPLOAD_CLIPRECTS; + } +} + +static void mach64DDScissor( GLcontext *ctx, + GLint x, GLint y, GLsizei w, GLsizei h ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + + FLUSH_BATCH( mmesa ); + mmesa->new_state |= MACH64_NEW_CLIP; +} + + +/* ============================================================= + * Culling + */ + +static void mach64UpdateCull( GLcontext *ctx ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + GLfloat backface_sign = 1; + + if ( ctx->Polygon.CullFlag /*&& ctx->PB->primitive == GL_POLYGON*/ ) { + backface_sign = 1; + switch ( ctx->Polygon.CullFaceMode ) { + case GL_BACK: + if ( ctx->Polygon.FrontFace == GL_CCW ) + backface_sign = -1; + break; + case GL_FRONT: + if ( ctx->Polygon.FrontFace != GL_CCW ) + backface_sign = -1; + break; + default: + case GL_FRONT_AND_BACK: + backface_sign = 0; + break; + } + } else { + backface_sign = 0; + } + + mmesa->backface_sign = backface_sign; + +} + +static void mach64DDCullFace( GLcontext *ctx, GLenum mode ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + + FLUSH_BATCH( mmesa ); + mmesa->new_state |= MACH64_NEW_CULL; +} + +static void mach64DDFrontFace( GLcontext *ctx, GLenum mode ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + + FLUSH_BATCH( mmesa ); + mmesa->new_state |= MACH64_NEW_CULL; +} + + +/* ============================================================= + * Masks + */ + +static void mach64UpdateMasks( GLcontext *ctx ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + GLuint mask = 0xffffffff; + + /* mach64 can't color mask with alpha blending enabled */ + if ( !ctx->Color.BlendEnabled ) { + mask = mach64PackColor( mmesa->mach64Screen->cpp, + ctx->Color.ColorMask[RCOMP], + ctx->Color.ColorMask[GCOMP], + ctx->Color.ColorMask[BCOMP], + ctx->Color.ColorMask[ACOMP] ); + } + + if ( mmesa->setup.dp_write_mask != mask ) { + mmesa->setup.dp_write_mask = mask; + mmesa->dirty |= MACH64_UPLOAD_DP_WRITE_MASK; + } +} + +static void mach64DDColorMask( GLcontext *ctx, + GLboolean r, GLboolean g, + GLboolean b, GLboolean a ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + + FLUSH_BATCH( mmesa ); + mmesa->new_state |= MACH64_NEW_MASKS; +} + + +/* ============================================================= + * Rendering attributes + * + * We really don't want to recalculate all this every time we bind a + * texture. These things shouldn't change all that often, so it makes + * sense to break them out of the core texture state update routines. + */ + +static void mach64UpdateSpecularLighting( GLcontext *ctx ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + GLuint a = mmesa->setup.alpha_tst_cntl; + + if ( MACH64_DEBUG & DEBUG_VERBOSE_MSG ) { + fprintf( stderr, "%s:\n", __FUNCTION__ ); + } + + if ( ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR && + ctx->Light.Enabled ) { + a |= MACH64_SPECULAR_LIGHT_EN; + } else { + a &= ~MACH64_SPECULAR_LIGHT_EN; + } + + if ( mmesa->setup.alpha_tst_cntl != a ) { + mmesa->setup.alpha_tst_cntl = a; + mmesa->dirty |= MACH64_UPLOAD_Z_ALPHA_CNTL; + mmesa->new_state |= MACH64_NEW_CONTEXT; + } +} + +static void mach64DDLightModelfv( GLcontext *ctx, GLenum pname, + const GLfloat *param ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + + if ( pname == GL_LIGHT_MODEL_COLOR_CONTROL ) { + FLUSH_BATCH( mmesa ); + mach64UpdateSpecularLighting(ctx); + } +} + +static void mach64DDShadeModel( GLcontext *ctx, GLenum mode ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + GLuint s = mmesa->setup.setup_cntl; + + s &= ~MACH64_FLAT_SHADE_MASK; + + switch ( mode ) { + case GL_FLAT: + s |= MACH64_FLAT_SHADE_VERTEX_3; + break; + case GL_SMOOTH: + s |= MACH64_FLAT_SHADE_OFF; + break; + default: + return; + } + + if ( mmesa->setup.setup_cntl != s ) { + FLUSH_BATCH( mmesa ); + mmesa->setup.setup_cntl = s; + + mmesa->dirty |= MACH64_UPLOAD_SETUP_CNTL; + } +} + + +/* ============================================================= + * Viewport + */ + + +void mach64CalcViewport( GLcontext *ctx ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + const GLfloat *v = ctx->Viewport._WindowMap.m; + GLfloat *m = mmesa->hw_viewport; + + /* See also mach64_translate_vertex. + */ + m[MAT_SX] = v[MAT_SX]; + m[MAT_TX] = v[MAT_TX] + (GLfloat)mmesa->drawX + SUBPIXEL_X; + m[MAT_SY] = - v[MAT_SY]; + m[MAT_TY] = - v[MAT_TY] + mmesa->driDrawable->h + (GLfloat)mmesa->drawY + SUBPIXEL_Y; + m[MAT_SZ] = v[MAT_SZ] * mmesa->depth_scale; + m[MAT_TZ] = v[MAT_TZ] * mmesa->depth_scale; + + mmesa->SetupNewInputs = ~0; +} + +static void mach64Viewport( GLcontext *ctx, + GLint x, GLint y, + GLsizei width, GLsizei height ) +{ + mach64CalcViewport( ctx ); +} + +static void mach64DepthRange( GLcontext *ctx, + GLclampd nearval, GLclampd farval ) +{ + mach64CalcViewport( ctx ); +} + + +/* ============================================================= + * Miscellaneous + */ + +static void mach64DDClearColor( GLcontext *ctx, + const GLfloat color[4] ) +{ + mach64ContextPtr mmesa = MACH64_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]); + + mmesa->ClearColor = mach64PackColor( mmesa->mach64Screen->cpp, + c[0], c[1], c[2], c[3] ); +} + +static void mach64DDLogicOpCode( GLcontext *ctx, GLenum opcode ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + + if ( ctx->Color.ColorLogicOpEnabled ) { + FLUSH_BATCH( mmesa ); + + FALLBACK( mmesa, MACH64_FALLBACK_LOGICOP, opcode != GL_COPY); + } +} + +void mach64SetCliprects( GLcontext *ctx, GLenum mode ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + __DRIdrawablePrivate *dPriv = mmesa->driDrawable; + + switch ( mode ) { + case GL_FRONT_LEFT: + mmesa->numClipRects = dPriv->numClipRects; + mmesa->pClipRects = (XF86DRIClipRectPtr)dPriv->pClipRects; + mmesa->drawX = dPriv->x; + mmesa->drawY = dPriv->y; + break; + case GL_BACK_LEFT: + if ( dPriv->numBackClipRects == 0 ) { + mmesa->numClipRects = dPriv->numClipRects; + mmesa->pClipRects = (XF86DRIClipRectPtr)dPriv->pClipRects; + mmesa->drawX = dPriv->x; + mmesa->drawY = dPriv->y; + } else { + mmesa->numClipRects = dPriv->numBackClipRects; + mmesa->pClipRects = (XF86DRIClipRectPtr)dPriv->pBackClipRects; + mmesa->drawX = dPriv->backX; + mmesa->drawY = dPriv->backY; + } + break; + default: + return; + } + + mach64UpdateClipping( ctx ); + + mmesa->dirty |= MACH64_UPLOAD_CLIPRECTS; +} + +static void mach64DDDrawBuffer( GLcontext *ctx, GLenum mode ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + + FLUSH_BATCH( mmesa ); + + /* + * _DrawDestMask is easier to cope with than <mode>. + */ + switch ( ctx->Color._DrawDestMask ) { + case FRONT_LEFT_BIT: + FALLBACK( mmesa, MACH64_FALLBACK_DRAW_BUFFER, GL_FALSE ); + mach64SetCliprects( ctx, GL_FRONT_LEFT ); + if (MACH64_DEBUG & DEBUG_VERBOSE_MSG) + fprintf(stderr,"%s: FRONT_LEFT_BIT\n", __FUNCTION__); + break; + case BACK_LEFT_BIT: + FALLBACK( mmesa, MACH64_FALLBACK_DRAW_BUFFER, GL_FALSE ); + mach64SetCliprects( ctx, GL_BACK_LEFT ); + if (MACH64_DEBUG & DEBUG_VERBOSE_MSG) + fprintf(stderr,"%s: BACK_LEFT_BIT\n", __FUNCTION__); + break; + default: + /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */ + FALLBACK( mmesa, MACH64_FALLBACK_DRAW_BUFFER, GL_TRUE ); + if (MACH64_DEBUG & DEBUG_VERBOSE_MSG) + fprintf(stderr,"%s: fallback (mode=%d)\n", __FUNCTION__, mode); + break; + } + + /* We want to update the s/w rast state too so that mach64SetBuffer() + * gets called. + */ + _swrast_DrawBuffer(ctx, mode); + + mmesa->setup.dst_off_pitch = (((mmesa->drawPitch/8) << 22) | + (mmesa->drawOffset >> 3)); + + mmesa->dirty |= MACH64_UPLOAD_DST_OFF_PITCH; +} + +static void mach64DDReadBuffer( GLcontext *ctx, GLenum mode ) +{ + /* nothing, until we implement h/w glRead/CopyPixels or CopyTexImage */ +} + +/* ============================================================= + * State enable/disable + */ + +static void mach64DDEnable( GLcontext *ctx, GLenum cap, GLboolean state ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + + if ( MACH64_DEBUG & DEBUG_VERBOSE_API ) { + fprintf( stderr, "%s( %s = %s )\n", + __FUNCTION__, _mesa_lookup_enum_by_nr( cap ), + state ? "GL_TRUE" : "GL_FALSE" ); + } + + switch ( cap ) { + case GL_ALPHA_TEST: + FLUSH_BATCH( mmesa ); + mmesa->new_state |= MACH64_NEW_ALPHA; + break; + + case GL_BLEND: + FLUSH_BATCH( mmesa ); + mmesa->new_state |= MACH64_NEW_ALPHA; + + /* enable(GL_BLEND) affects ColorLogicOpEnabled. + */ + FALLBACK( mmesa, MACH64_FALLBACK_LOGICOP, + (ctx->Color.ColorLogicOpEnabled && + ctx->Color.LogicOp != GL_COPY)); + break; + + case GL_CULL_FACE: + FLUSH_BATCH( mmesa ); + mmesa->new_state |= MACH64_NEW_CULL; + break; + + case GL_DEPTH_TEST: + FLUSH_BATCH( mmesa ); + mmesa->new_state |= MACH64_NEW_DEPTH; + break; + + case GL_DITHER: + do { + GLuint s = mmesa->setup.scale_3d_cntl; + FLUSH_BATCH( mmesa ); + + if ( ctx->Color.DitherFlag ) { + /* Dithering causes problems w/ 24bpp depth */ + if ( mmesa->mach64Screen->cpp == 4 ) + s |= MACH64_ROUND_EN; + else + s |= MACH64_DITHER_EN; + } else { + s &= ~MACH64_DITHER_EN; + s &= ~MACH64_ROUND_EN; + } + + if ( mmesa->setup.scale_3d_cntl != s ) { + mmesa->setup.scale_3d_cntl = s; + mmesa->dirty |= ( MACH64_UPLOAD_SCALE_3D_CNTL ); + } + } while (0); + break; + + case GL_FOG: + FLUSH_BATCH( mmesa ); + mmesa->new_state |= MACH64_NEW_FOG; + break; + + case GL_INDEX_LOGIC_OP: + case GL_COLOR_LOGIC_OP: + FLUSH_BATCH( mmesa ); + FALLBACK( mmesa, MACH64_FALLBACK_LOGICOP, + state && ctx->Color.LogicOp != GL_COPY ); + break; + + case GL_LIGHTING: + mach64UpdateSpecularLighting(ctx); + break; + + case GL_SCISSOR_TEST: + FLUSH_BATCH( mmesa ); + mmesa->scissor = state; + mmesa->new_state |= MACH64_NEW_CLIP; + break; + + case GL_STENCIL_TEST: + FLUSH_BATCH( mmesa ); + FALLBACK( mmesa, MACH64_FALLBACK_STENCIL, state ); + break; + + case GL_TEXTURE_1D: + case GL_TEXTURE_2D: + case GL_TEXTURE_3D: + FLUSH_BATCH( mmesa ); + mmesa->new_state |= MACH64_NEW_TEXTURE; + break; + + default: + return; + } +} + +/* ============================================================= + * Render mode + */ + +static void mach64DDRenderMode( GLcontext *ctx, GLenum mode ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + FALLBACK( mmesa, MACH64_FALLBACK_RENDER_MODE, (mode != GL_RENDER) ); +} + +/* ============================================================= + * State initialization, management + */ + +static void mach64DDPrintDirty( const char *msg, GLuint state ) +{ + fprintf( stderr, + "%s: (0x%x) %s%s%s%s%s%s%s%s%s%s%s%s\n", + msg, + state, + (state & MACH64_UPLOAD_DST_OFF_PITCH) ? "dst_off_pitch, " : "", + (state & MACH64_UPLOAD_Z_ALPHA_CNTL) ? "z_alpha_cntl, " : "", + (state & MACH64_UPLOAD_SCALE_3D_CNTL) ? "scale_3d_cntl, " : "", + (state & MACH64_UPLOAD_DP_FOG_CLR) ? "dp_fog_clr, " : "", + (state & MACH64_UPLOAD_DP_WRITE_MASK) ? "dp_write_mask, " : "", + (state & MACH64_UPLOAD_DP_PIX_WIDTH) ? "dp_pix_width, " : "", + (state & MACH64_UPLOAD_SETUP_CNTL) ? "setup_cntl, " : "", + (state & MACH64_UPLOAD_MISC) ? "misc, " : "", + (state & MACH64_UPLOAD_TEXTURE) ? "texture, " : "", + (state & MACH64_UPLOAD_TEX0IMAGE) ? "tex0 image, " : "", + (state & MACH64_UPLOAD_TEX1IMAGE) ? "tex1 image, " : "", + (state & MACH64_UPLOAD_CLIPRECTS) ? "cliprects, " : "" ); +} + +/* + * Load the current context's state into the hardware. + * + * NOTE: Be VERY careful about ensuring the context state is marked for + * upload, the only place it shouldn't be uploaded is when the setup + * state has changed in ReducedPrimitiveChange as this comes right after + * a state update. + * + * Blits of any type should always upload the context and masks after + * they are done. + */ +void mach64EmitHwStateLocked( mach64ContextPtr mmesa ) +{ + ATISAREAPrivPtr sarea = mmesa->sarea; + mach64_context_regs_t *regs = &(mmesa->setup); + mach64TexObjPtr t0 = mmesa->CurrentTexObj[0]; + mach64TexObjPtr t1 = mmesa->CurrentTexObj[1]; + + if ( MACH64_DEBUG & DEBUG_VERBOSE_MSG ) { + mach64DDPrintDirty( __FUNCTION__, mmesa->dirty ); + } + + if ( t0 && t1 && mmesa->mach64Screen->numTexHeaps > 1 ) { + if (t0->heap != t1->heap || + (mmesa->dirty & MACH64_UPLOAD_TEX0IMAGE) || + (mmesa->dirty & MACH64_UPLOAD_TEX1IMAGE)) + mach64UploadMultiTexImages( mmesa, t0, t1 ); + } else { + if ( mmesa->dirty & MACH64_UPLOAD_TEX0IMAGE ) { + if ( t0 ) mach64UploadTexImages( mmesa, t0 ); + } + if ( mmesa->dirty & MACH64_UPLOAD_TEX1IMAGE ) { + if ( t1 ) mach64UploadTexImages( mmesa, t1 ); + } + } + + if ( mmesa->dirty & (MACH64_UPLOAD_CONTEXT | MACH64_UPLOAD_MISC) ) { + memcpy( &sarea->ContextState, regs, + MACH64_NR_CONTEXT_REGS * sizeof(GLuint) ); + } + + if ( mmesa->dirty & MACH64_UPLOAD_TEXTURE ) { + mach64EmitTexStateLocked( mmesa, t0, t1 ); + } + + sarea->vertsize = mmesa->vertex_size; + + /* Turn off the texture cache flushing. + */ + mmesa->setup.tex_cntl &= ~MACH64_TEX_CACHE_FLUSH; + + sarea->dirty |= mmesa->dirty; + + mmesa->dirty &= MACH64_UPLOAD_CLIPRECTS; +} + +static void mach64DDPrintState( const char *msg, GLuint flags ) +{ + fprintf( stderr, + "%s: (0x%x) %s%s%s%s%s%s%s%s%s\n", + msg, + flags, + (flags & MACH64_NEW_CONTEXT) ? "context, " : "", + (flags & MACH64_NEW_ALPHA) ? "alpha, " : "", + (flags & MACH64_NEW_DEPTH) ? "depth, " : "", + (flags & MACH64_NEW_FOG) ? "fog, " : "", + (flags & MACH64_NEW_CLIP) ? "clip, " : "", + (flags & MACH64_NEW_TEXTURE) ? "texture, " : "", + (flags & MACH64_NEW_CULL) ? "cull, " : "", + (flags & MACH64_NEW_MASKS) ? "masks, " : "", + (flags & MACH64_NEW_WINDOW) ? "window, " : "" ); +} + +/* Update the hardware state */ +void mach64DDUpdateHWState( GLcontext *ctx ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + int new_state = mmesa->new_state; + + if ( MACH64_DEBUG & DEBUG_VERBOSE_MSG ) { + fprintf( stderr, "%s:\n", __FUNCTION__ ); + } + + if ( new_state ) + { + FLUSH_BATCH( mmesa ); + + mmesa->new_state = 0; + + if ( MACH64_DEBUG & DEBUG_VERBOSE_MSG ) + mach64DDPrintState( __FUNCTION__, new_state ); + + /* Update the various parts of the context's state. + */ + if ( new_state & MACH64_NEW_ALPHA ) + mach64UpdateAlphaMode( ctx ); + + if ( new_state & MACH64_NEW_DEPTH ) + mach64UpdateZMode( ctx ); + + if ( new_state & MACH64_NEW_FOG ) + mach64UpdateFogAttrib( ctx ); + + if ( new_state & MACH64_NEW_CLIP ) + mach64UpdateClipping( ctx ); + + if ( new_state & MACH64_NEW_WINDOW ) + mach64CalcViewport( ctx ); + + if ( new_state & MACH64_NEW_CULL ) + mach64UpdateCull( ctx ); + + if ( new_state & MACH64_NEW_MASKS ) + mach64UpdateMasks( ctx ); + + if ( new_state & MACH64_NEW_TEXTURE ) + mach64UpdateTextureState( ctx ); + } +} + + +static void mach64DDInvalidateState( 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 ); + MACH64_CONTEXT(ctx)->NewGLState |= new_state; +} + + +/* Initialize the context's hardware state */ +void mach64DDInitState( mach64ContextPtr mmesa ) +{ + GLuint format; + + switch ( mmesa->mach64Screen->cpp ) { + case 2: + format = MACH64_DATATYPE_RGB565; + break; + case 4: + format = MACH64_DATATYPE_ARGB8888; + break; + default: + fprintf( stderr, "Error: Unsupported pixel depth... exiting\n" ); + exit( -1 ); + } + + /* Always have a 16-bit depth buffer + * but Z coordinates are specified in 16.1 format to the setup engine. + */ + mmesa->depth_scale = 2.0; + + mmesa->ClearColor = 0x00000000; + mmesa->ClearDepth = 0x0000ffff; + + mmesa->Fallback = 0; + + if ( mmesa->glCtx->Visual.doubleBufferMode ) { + mmesa->drawOffset = mmesa->readOffset = mmesa->mach64Screen->backOffset; + mmesa->drawPitch = mmesa->readPitch = mmesa->mach64Screen->backPitch; + } else { + mmesa->drawOffset = mmesa->readOffset = mmesa->mach64Screen->frontOffset; + mmesa->drawPitch = mmesa->readPitch = mmesa->mach64Screen->frontPitch; + } + + /* Harware state: + */ + mmesa->setup.dst_off_pitch = (((mmesa->drawPitch/8) << 22) | + (mmesa->drawOffset >> 3)); + + mmesa->setup.z_off_pitch = (((mmesa->mach64Screen->depthPitch/8) << 22) | + (mmesa->mach64Screen->depthOffset >> 3)); + + mmesa->setup.z_cntl = (MACH64_Z_TEST_LESS | + MACH64_Z_MASK_EN); + + mmesa->setup.alpha_tst_cntl = (MACH64_ALPHA_TEST_ALWAYS | + MACH64_ALPHA_DST_SRCALPHA | + MACH64_ALPHA_TST_SRC_TEXEL | + (0 << MACH64_REF_ALPHA_SHIFT)); + + mmesa->setup.scale_3d_cntl = (MACH64_SCALE_PIX_EXPAND_DYNAMIC_RANGE | + /* MACH64_SCALE_DITHER_ERROR_DIFFUSE | */ + MACH64_SCALE_DITHER_2D_TABLE | + /* MACH64_DITHER_INIT_CURRENT | */ + MACH64_DITHER_INIT_RESET | + MACH64_SCALE_3D_FCN_SHADE | + MACH64_ALPHA_FOG_DIS | + MACH64_ALPHA_BLEND_SRC_ONE | + MACH64_ALPHA_BLEND_DST_ZERO | + MACH64_TEX_LIGHT_FCN_MODULATE | + MACH64_MIP_MAP_DISABLE | + MACH64_BILINEAR_TEX_EN | + MACH64_TEX_BLEND_FCN_LINEAR); + + /* GL spec says dithering initially enabled, but dithering causes + * problems w/ 24bpp depth + */ + if ( mmesa->mach64Screen->cpp == 4 ) + mmesa->setup.scale_3d_cntl |= MACH64_ROUND_EN; + else + mmesa->setup.scale_3d_cntl |= MACH64_DITHER_EN; + + mmesa->setup.sc_left_right = 0x1fff0000; + mmesa->setup.sc_top_bottom = 0x3fff0000; + + mmesa->setup.dp_fog_clr = 0x00ffffff; + mmesa->setup.dp_write_mask = 0xffffffff; + + mmesa->setup.dp_pix_width = ((format << 0) | + (format << 4) | + (format << 8) | + (format << 16) | + (format << 28)); + + mmesa->setup.dp_mix = (MACH64_BKGD_MIX_S | + MACH64_FRGD_MIX_S); + mmesa->setup.dp_src = (MACH64_BKGD_SRC_3D | + MACH64_FRGD_SRC_3D | + MACH64_MONO_SRC_ONE); + + mmesa->setup.clr_cmp_cntl = 0x00000000; + mmesa->setup.gui_traj_cntl = (MACH64_DST_X_LEFT_TO_RIGHT | + MACH64_DST_Y_TOP_TO_BOTTOM); + + mmesa->setup.setup_cntl = (MACH64_FLAT_SHADE_OFF | + MACH64_SOLID_MODE_OFF | + MACH64_LOG_MAX_INC_ADJ); + mmesa->setup.setup_cntl = 0; + + mmesa->setup.tex_size_pitch = 0x00000000; + + mmesa->setup.tex_cntl = ((0 << MACH64_LOD_BIAS_SHIFT) | + (0 << MACH64_COMP_FACTOR_SHIFT) | + MACH64_COMP_COMBINE_MODULATE | + MACH64_COMP_BLEND_NEAREST | + MACH64_COMP_FILTER_NEAREST | + /* MACH64_TEXTURE_TILING | */ +#ifdef MACH64_PREMULT_TEXCOORDS + MACH64_TEX_ST_DIRECT | +#endif + MACH64_TEX_SRC_LOCAL | + MACH64_TEX_UNCOMPRESSED | + MACH64_TEX_CACHE_FLUSH | + MACH64_TEX_CACHE_SIZE_4K); + + mmesa->setup.secondary_tex_off = 0x00000000; + mmesa->setup.tex_offset = 0x00000000; + + mmesa->new_state = MACH64_NEW_ALL; +} + +/* Initialize the driver's state functions. + */ +void mach64DDInitStateFuncs( GLcontext *ctx ) +{ + ctx->Driver.UpdateState = mach64DDInvalidateState; + + ctx->Driver.ClearIndex = NULL; + ctx->Driver.ClearColor = mach64DDClearColor; + ctx->Driver.DrawBuffer = mach64DDDrawBuffer; + ctx->Driver.ReadBuffer = mach64DDReadBuffer; + + ctx->Driver.IndexMask = NULL; + ctx->Driver.ColorMask = mach64DDColorMask; + ctx->Driver.AlphaFunc = mach64DDAlphaFunc; + ctx->Driver.BlendEquationSeparate = mach64DDBlendEquationSeparate; + ctx->Driver.BlendFuncSeparate = mach64DDBlendFuncSeparate; + ctx->Driver.ClearDepth = mach64DDClearDepth; + ctx->Driver.CullFace = mach64DDCullFace; + ctx->Driver.FrontFace = mach64DDFrontFace; + ctx->Driver.DepthFunc = mach64DDDepthFunc; + ctx->Driver.DepthMask = mach64DDDepthMask; + ctx->Driver.Enable = mach64DDEnable; + ctx->Driver.Fogfv = mach64DDFogfv; + ctx->Driver.Hint = NULL; + ctx->Driver.Lightfv = NULL; + ctx->Driver.LightModelfv = mach64DDLightModelfv; + ctx->Driver.LogicOpcode = mach64DDLogicOpCode; + ctx->Driver.PolygonMode = NULL; + ctx->Driver.PolygonStipple = NULL; + ctx->Driver.RenderMode = mach64DDRenderMode; + ctx->Driver.Scissor = mach64DDScissor; + ctx->Driver.ShadeModel = mach64DDShadeModel; + ctx->Driver.ClearStencil = NULL; + ctx->Driver.StencilFunc = NULL; + ctx->Driver.StencilMask = NULL; + ctx->Driver.StencilOp = NULL; + + ctx->Driver.DepthRange = mach64DepthRange; + ctx->Driver.Viewport = mach64Viewport; + + /* 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; +} |