From 2d61d301171620efe624d83a5457f4094eb49cba Mon Sep 17 00:00:00 2001 From: Roland Scheidegger Date: Mon, 17 Oct 2005 00:54:12 +0000 Subject: add GL_EXT_fog_coord support to radeon driver. No vtxfmt code (just uses fallback) yet. May cause a tcl fallback if fog coord is used together with separate specular lighting. Fog factors are precomputed and then submitted instead of the raw coords (chip limitation, same as on r200). --- src/mesa/drivers/dri/radeon/radeon_context.c | 5 ++ src/mesa/drivers/dri/radeon/radeon_maos_arrays.c | 58 ++++++++++++++++ src/mesa/drivers/dri/radeon/radeon_maos_vbtmp.h | 15 ++-- src/mesa/drivers/dri/radeon/radeon_maos_verts.c | 9 ++- src/mesa/drivers/dri/radeon/radeon_state.c | 77 ++++++++++----------- src/mesa/drivers/dri/radeon/radeon_state_init.c | 1 + src/mesa/drivers/dri/radeon/radeon_tcl.c | 87 +++++++++++++++++++++++- src/mesa/drivers/dri/radeon/radeon_tcl.h | 6 +- src/mesa/drivers/dri/radeon/radeon_vtxfmt.c | 14 +++- 9 files changed, 215 insertions(+), 57 deletions(-) (limited to 'src/mesa/drivers/dri') diff --git a/src/mesa/drivers/dri/radeon/radeon_context.c b/src/mesa/drivers/dri/radeon/radeon_context.c index a1e3582415c..4b81b539807 100644 --- a/src/mesa/drivers/dri/radeon/radeon_context.c +++ b/src/mesa/drivers/dri/radeon/radeon_context.c @@ -66,6 +66,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. #define need_GL_ARB_multisample #define need_GL_ARB_texture_compression #define need_GL_EXT_blend_minmax +#define need_GL_EXT_fog_coord #define need_GL_EXT_secondary_color #include "extension_helper.h" @@ -139,6 +140,7 @@ const struct dri_extension card_extensions[] = { "GL_ARB_texture_mirrored_repeat", NULL }, { "GL_EXT_blend_logic_op", NULL }, { "GL_EXT_blend_subtract", GL_EXT_blend_minmax_functions }, + { "GL_EXT_fog_coord", GL_EXT_fog_coord_functions }, { "GL_EXT_secondary_color", GL_EXT_secondary_color_functions }, { "GL_EXT_stencil_wrap", NULL }, { "GL_EXT_texture_edge_clamp", NULL }, @@ -238,6 +240,9 @@ radeonCreateContext( const __GLcontextModes *glVisual, if ( !rmesa ) return GL_FALSE; + /* init exp fog table data */ + radeonInitStaticFogData(); + /* Parse configuration files. * Do this here so that initialMaxAnisotropy is set before we create * the default textures. diff --git a/src/mesa/drivers/dri/radeon/radeon_maos_arrays.c b/src/mesa/drivers/dri/radeon/radeon_maos_arrays.c index 76ad1f3cd4b..49d64148ca1 100644 --- a/src/mesa/drivers/dri/radeon/radeon_maos_arrays.c +++ b/src/mesa/drivers/dri/radeon/radeon_maos_arrays.c @@ -48,6 +48,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. #include "radeon_state.h" #include "radeon_swtcl.h" #include "radeon_maos.h" +#include "radeon_tcl.h" #if 0 /* Usage: @@ -169,6 +170,46 @@ do { \ } while (0) #endif +static void emit_vecfog( GLcontext *ctx, + struct radeon_dma_region *rvb, + char *data, + int stride, + int count ) +{ + int i; + GLfloat *out; + + radeonContextPtr rmesa = RADEON_CONTEXT(ctx); + + if (RADEON_DEBUG & DEBUG_VERTS) + fprintf(stderr, "%s count %d stride %d\n", + __FUNCTION__, count, stride); + + assert (!rvb->buf); + + if (stride == 0) { + radeonAllocDmaRegion( rmesa, rvb, 4, 4 ); + count = 1; + rvb->aos_start = GET_START(rvb); + rvb->aos_stride = 0; + rvb->aos_size = 1; + } + else { + radeonAllocDmaRegion( rmesa, rvb, count * 4, 4 ); /* alignment? */ + rvb->aos_start = GET_START(rvb); + rvb->aos_stride = 1; + rvb->aos_size = 1; + } + + /* Emit the data + */ + out = (GLfloat *)(rvb->address + rvb->start); + for (i = 0; i < count; i++) { + out[0] = radeonComputeFogBlendFactor( ctx, *(GLfloat *)data ); + out++; + data += stride; + } +} static void emit_vec4( GLcontext *ctx, struct radeon_dma_region *rvb, @@ -525,6 +566,20 @@ void radeonEmitArrays( GLcontext *ctx, GLuint inputs ) component[nr++] = &rmesa->tcl.spec; } + + if (inputs & VERT_BIT_FOG) { + if (!rmesa->tcl.fog.buf) + emit_vecfog( ctx, + &(rmesa->tcl.fog), + (char *)VB->FogCoordPtr->data, + VB->FogCoordPtr->stride, + count); + + vfmt |= RADEON_CP_VC_FRMT_FPFOG; + component[nr++] = &rmesa->tcl.fog; + } + + vtx = (rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] & ~(RADEON_TCL_VTX_Q0|RADEON_TCL_VTX_Q1|RADEON_TCL_VTX_Q2)); @@ -589,6 +644,9 @@ void radeonReleaseArrays( GLcontext *ctx, GLuint newinputs ) if (newinputs & VERT_BIT_COLOR1) radeonReleaseDmaRegion( rmesa, &rmesa->tcl.spec, __FUNCTION__ ); + + if (newinputs & VERT_BIT_FOG) + radeonReleaseDmaRegion( rmesa, &rmesa->tcl.fog, __FUNCTION__ ); for (unit = 0 ; unit < ctx->Const.MaxTextureUnits; unit++) { if (newinputs & VERT_BIT_TEX(unit)) diff --git a/src/mesa/drivers/dri/radeon/radeon_maos_vbtmp.h b/src/mesa/drivers/dri/radeon/radeon_maos_vbtmp.h index 265d061b369..034cda8a65b 100644 --- a/src/mesa/drivers/dri/radeon/radeon_maos_vbtmp.h +++ b/src/mesa/drivers/dri/radeon/radeon_maos_vbtmp.h @@ -50,7 +50,6 @@ static void TAG(emit)( GLcontext *ctx, GLuint rqcoordsnoswap = 0; GLuint (*coord)[4]; GLuint coord_stride; /* object coordinates */ - GLubyte dummy[4]; int i; union emit_union *v = (union emit_union *)dest; @@ -133,7 +132,7 @@ static void TAG(emit)( GLcontext *ctx, } } - if (DO_SPEC) { + if (DO_SPEC_OR_FOG) { if (VB->SecondaryColorPtr[0]) { spec = VB->SecondaryColorPtr[0]->data; spec_stride = VB->SecondaryColorPtr[0]->stride; @@ -143,12 +142,12 @@ static void TAG(emit)( GLcontext *ctx, } } - if (DO_FOG) { + if (DO_SPEC_OR_FOG) { if (VB->FogCoordPtr) { fog = VB->FogCoordPtr->data; fog_stride = VB->FogCoordPtr->stride; } else { - fog = (GLfloat (*)[4])&dummy; fog[0][0] = 0.0F; + fog = (GLfloat (*)[4])ctx->Current.Attrib[VERT_ATTRIB_FOG]; fog_stride = 0; } } @@ -202,7 +201,7 @@ static void TAG(emit)( GLcontext *ctx, STRIDE_4F(col, col_stride); v++; } - if (DO_SPEC || DO_FOG) { + if (DO_SPEC_OR_FOG) { if (DO_SPEC) { UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.red, spec[0][0]); UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.green, spec[0][1]); @@ -210,8 +209,8 @@ static void TAG(emit)( GLcontext *ctx, STRIDE_4F(spec, spec_stride); } if (DO_FOG) { - UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.alpha, fog[0][0]); - fog = (GLfloat (*)[4])((GLubyte *)fog + fog_stride); + UNCLAMPED_FLOAT_TO_UBYTE(v[0].rgba.alpha, radeonComputeFogBlendFactor(ctx, fog[0][0])); + STRIDE_4F(fog, fog_stride); } if (TCL_DEBUG) fprintf(stderr, "%x ", v[0].ui); v++; @@ -283,7 +282,7 @@ static void TAG(init)( void ) if (DO_W) sz++; if (DO_NORM) sz += 3; if (DO_RGBA) sz++; - if (DO_SPEC || DO_FOG) sz++; + if (DO_SPEC_OR_FOG) sz++; if (DO_TEX0) sz += 2; if (DO_TEX0 && DO_PTEX) sz++; if (DO_TEX1) sz += 2; diff --git a/src/mesa/drivers/dri/radeon/radeon_maos_verts.c b/src/mesa/drivers/dri/radeon/radeon_maos_verts.c index 24e681c8c09..91a60bb9f15 100644 --- a/src/mesa/drivers/dri/radeon/radeon_maos_verts.c +++ b/src/mesa/drivers/dri/radeon/radeon_maos_verts.c @@ -63,8 +63,11 @@ static struct { #define DO_W (IND & RADEON_CP_VC_FRMT_W0) #define DO_RGBA (IND & RADEON_CP_VC_FRMT_PKCOLOR) -#define DO_SPEC (IND & RADEON_CP_VC_FRMT_PKSPEC) -#define DO_FOG (IND & RADEON_CP_VC_FRMT_PKSPEC) +#define DO_SPEC_OR_FOG (IND & RADEON_CP_VC_FRMT_PKSPEC) +#define DO_SPEC ((IND & RADEON_CP_VC_FRMT_PKSPEC) && \ + (ctx->_TriangleCaps & DD_SEPARATE_SPECULAR)) +#define DO_FOG ((IND & RADEON_CP_VC_FRMT_PKSPEC) && ctx->Fog.Enabled && \ + (ctx->Fog.FogCoordinateSource == GL_FOG_COORD)) #define DO_TEX0 (IND & RADEON_CP_VC_FRMT_ST0) #define DO_TEX1 (IND & RADEON_CP_VC_FRMT_ST1) #define DO_TEX2 (IND & RADEON_CP_VC_FRMT_ST2) @@ -337,7 +340,7 @@ void radeonEmitArrays( GLcontext *ctx, GLuint inputs ) req |= RADEON_CP_VC_FRMT_PKCOLOR; } - if (inputs & VERT_BIT_COLOR1) { + if (inputs & (VERT_BIT_COLOR1|VERT_BIT_FOG)) { req |= RADEON_CP_VC_FRMT_PKSPEC; } diff --git a/src/mesa/drivers/dri/radeon/radeon_state.c b/src/mesa/drivers/dri/radeon/radeon_state.c index 28033881c5e..681de914e83 100644 --- a/src/mesa/drivers/dri/radeon/radeon_state.c +++ b/src/mesa/drivers/dri/radeon/radeon_state.c @@ -55,6 +55,8 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. #include "radeon_vtxfmt.h" #include "drirenderbuffer.h" +static void radeonUpdateSpecular( GLcontext *ctx ); + /* ============================================================= * Alpha blending */ @@ -329,9 +331,6 @@ static void radeonFogfv( GLcontext *ctx, GLenum pname, const GLfloat *param ) union { int i; float f; } c, d; GLchan col[4]; - c.i = rmesa->hw.fog.cmd[FOG_C]; - d.i = rmesa->hw.fog.cmd[FOG_D]; - switch (pname) { case GL_FOG_MODE: if (!ctx->Fog.Enabled) @@ -341,30 +340,24 @@ static void radeonFogfv( GLcontext *ctx, GLenum pname, const GLfloat *param ) switch (ctx->Fog.Mode) { case GL_LINEAR: rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] |= RADEON_TCL_FOG_LINEAR; - if (ctx->Fog.Start == ctx->Fog.End) { - c.f = 1.0F; - d.f = 1.0F; - } - else { - c.f = ctx->Fog.End/(ctx->Fog.End-ctx->Fog.Start); - d.f = 1.0/(ctx->Fog.End-ctx->Fog.Start); - } break; case GL_EXP: rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] |= RADEON_TCL_FOG_EXP; - c.f = 0.0; - d.f = ctx->Fog.Density; break; case GL_EXP2: rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] |= RADEON_TCL_FOG_EXP2; - c.f = 0.0; - d.f = -(ctx->Fog.Density * ctx->Fog.Density); break; default: return; } - break; + /* fallthrough */ case GL_FOG_DENSITY: + case GL_FOG_START: + case GL_FOG_END: + if (!ctx->Fog.Enabled) + return; + c.i = rmesa->hw.fog.cmd[FOG_C]; + d.i = rmesa->hw.fog.cmd[FOG_D]; switch (ctx->Fog.Mode) { case GL_EXP: c.f = 0.0; @@ -374,13 +367,7 @@ static void radeonFogfv( GLcontext *ctx, GLenum pname, const GLfloat *param ) c.f = 0.0; d.f = -(ctx->Fog.Density * ctx->Fog.Density); break; - default: - break; - } - break; - case GL_FOG_START: - case GL_FOG_END: - if (ctx->Fog.Mode == GL_LINEAR) { + case GL_LINEAR: if (ctx->Fog.Start == ctx->Fog.End) { c.f = 1.0F; d.f = 1.0F; @@ -388,27 +375,29 @@ static void radeonFogfv( GLcontext *ctx, GLenum pname, const GLfloat *param ) c.f = ctx->Fog.End/(ctx->Fog.End-ctx->Fog.Start); d.f = 1.0/(ctx->Fog.End-ctx->Fog.Start); } + break; + default: + break; + } + if (c.i != rmesa->hw.fog.cmd[FOG_C] || d.i != rmesa->hw.fog.cmd[FOG_D]) { + RADEON_STATECHANGE( rmesa, fog ); + rmesa->hw.fog.cmd[FOG_C] = c.i; + rmesa->hw.fog.cmd[FOG_D] = d.i; } break; case GL_FOG_COLOR: RADEON_STATECHANGE( rmesa, ctx ); UNCLAMPED_FLOAT_TO_RGB_CHAN( col, ctx->Fog.Color ); - rmesa->hw.ctx.cmd[CTX_PP_FOG_COLOR] = + rmesa->hw.ctx.cmd[CTX_PP_FOG_COLOR] &= ~RADEON_FOG_COLOR_MASK; + rmesa->hw.ctx.cmd[CTX_PP_FOG_COLOR] |= radeonPackColor( 4, col[0], col[1], col[2], 0 ); break; - case GL_FOG_COORDINATE_SOURCE_EXT: - /* What to do? - */ + case GL_FOG_COORD_SRC: + radeonUpdateSpecular( ctx ); break; default: return; } - - if (c.i != rmesa->hw.fog.cmd[FOG_C] || d.i != rmesa->hw.fog.cmd[FOG_D]) { - RADEON_STATECHANGE( rmesa, fog ); - rmesa->hw.fog.cmd[FOG_C] = c.i; - rmesa->hw.fog.cmd[FOG_D] = d.i; - } } @@ -692,6 +681,7 @@ static void radeonUpdateSpecular( GLcontext *ctx ) { radeonContextPtr rmesa = RADEON_CONTEXT(ctx); u_int32_t p = rmesa->hw.ctx.cmd[CTX_PP_CNTL]; + GLuint flag = 0; RADEON_STATECHANGE( rmesa, tcl ); @@ -730,13 +720,22 @@ static void radeonUpdateSpecular( GLcontext *ctx ) } if (ctx->Fog.Enabled) { - rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXSEL] |= RADEON_TCL_COMPUTE_SPECULAR; rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] |= RADEON_TCL_VTX_PK_SPEC; - - /* Bizzare: have to leave lighting enabled to get fog. - */ - rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL] |= RADEON_LIGHTING_ENABLE; + if (ctx->Fog.FogCoordinateSource == GL_FRAGMENT_DEPTH) { + rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXSEL] |= RADEON_TCL_COMPUTE_SPECULAR; + /* Bizzare: have to leave lighting enabled to get fog. */ + rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL] |= RADEON_LIGHTING_ENABLE; + } + else { + /* cannot do tcl fog factor calculation with fog coord source + * (send precomputed factors). Cannot use precomputed fog + * factors together with tcl spec light (need tcl fallback) */ + flag = (rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXSEL] & + RADEON_TCL_COMPUTE_SPECULAR) != 0; + } } + + TCL_FALLBACK( ctx, RADEON_TCL_FALLBACK_FOGCOORDSPEC, flag); if (NEED_SECONDARY_COLOR(ctx)) { assert( (p & RADEON_SPECULAR_ENABLE) != 0 ); @@ -1809,8 +1808,6 @@ static void radeonEnable( GLcontext *ctx, GLenum cap, GLboolean state ) rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] &= ~RADEON_TCL_FOG_MASK; } radeonUpdateSpecular( ctx ); /* for PK_SPEC */ - if (rmesa->TclFallback) - radeonChooseVertexState( ctx ); _mesa_allow_light_in_model( ctx, !state ); break; diff --git a/src/mesa/drivers/dri/radeon/radeon_state_init.c b/src/mesa/drivers/dri/radeon/radeon_state_init.c index 6e538a29732..6c0298a6f7b 100644 --- a/src/mesa/drivers/dri/radeon/radeon_state_init.c +++ b/src/mesa/drivers/dri/radeon/radeon_state_init.c @@ -345,6 +345,7 @@ void radeonInitState( radeonContextPtr rmesa ) RADEON_RIGHT_HAND_CUBE_OGL */); rmesa->hw.ctx.cmd[CTX_PP_FOG_COLOR] = (RADEON_FOG_VERTEX | + /* this bit unused for vertex fog */ RADEON_FOG_USE_DEPTH); rmesa->hw.ctx.cmd[CTX_RE_SOLID_COLOR] = 0x00000000; diff --git a/src/mesa/drivers/dri/radeon/radeon_tcl.c b/src/mesa/drivers/dri/radeon/radeon_tcl.c index fb0f10a862f..90383d40916 100644 --- a/src/mesa/drivers/dri/radeon/radeon_tcl.c +++ b/src/mesa/drivers/dri/radeon/radeon_tcl.c @@ -279,6 +279,88 @@ void radeonTclPrimitive( GLcontext *ctx, } } +/**********************************************************************/ +/* Fog blend factor computation for hw tcl */ +/* same calculation used as in t_vb_fog.c */ +/**********************************************************************/ + +#define FOG_EXP_TABLE_SIZE 256 +#define FOG_MAX (10.0) +#define EXP_FOG_MAX .0006595 +#define FOG_INCR (FOG_MAX/FOG_EXP_TABLE_SIZE) +static GLfloat exp_table[FOG_EXP_TABLE_SIZE]; + +#if 1 +#define NEG_EXP( result, narg ) \ +do { \ + GLfloat f = (GLfloat) (narg * (1.0/FOG_INCR)); \ + GLint k = (GLint) f; \ + if (k > FOG_EXP_TABLE_SIZE-2) \ + result = (GLfloat) EXP_FOG_MAX; \ + else \ + result = exp_table[k] + (f-k)*(exp_table[k+1]-exp_table[k]); \ +} while (0) +#else +#define NEG_EXP( result, narg ) \ +do { \ + result = exp(-narg); \ +} while (0) +#endif + + +/** + * Initialize the exp_table[] lookup table for approximating exp(). + */ +void +radeonInitStaticFogData( void ) +{ + GLfloat f = 0.0F; + GLint i = 0; + for ( ; i < FOG_EXP_TABLE_SIZE ; i++, f += FOG_INCR) { + exp_table[i] = (GLfloat) exp(-f); + } +} + + +/** + * Compute per-vertex fog blend factors from fog coordinates by + * evaluating the GL_LINEAR, GL_EXP or GL_EXP2 fog function. + * Fog coordinates are distances from the eye (typically between the + * near and far clip plane distances). + * Note the fog (eye Z) coords may be negative so we use ABS(z) below. + * Fog blend factors are in the range [0,1]. + */ +float +radeonComputeFogBlendFactor( GLcontext *ctx, GLfloat fogcoord ) +{ + GLfloat end = ctx->Fog.End; + GLfloat d, temp; + const GLfloat z = FABSF(fogcoord); + + switch (ctx->Fog.Mode) { + case GL_LINEAR: + if (ctx->Fog.Start == ctx->Fog.End) + d = 1.0F; + else + d = 1.0F / (ctx->Fog.End - ctx->Fog.Start); + temp = (end - z) * d; + return CLAMP(temp, 0.0F, 1.0F); + break; + case GL_EXP: + d = ctx->Fog.Density; + NEG_EXP( temp, d * z ); + return temp; + break; + case GL_EXP2: + d = ctx->Fog.Density*ctx->Fog.Density; + NEG_EXP( temp, d * z * z ); + return temp; + break; + default: + _mesa_problem(ctx, "Bad fog mode in make_fog_coord"); + return 0; + } +} /**********************************************************************/ /* Render pipeline stage */ @@ -314,7 +396,7 @@ static GLboolean radeon_run_tcl_render( GLcontext *ctx, } } - if ( ctx->Fog.FogCoordinateSource == GL_FOG_COORD ) { + if ( (ctx->Fog.FogCoordinateSource == GL_FOG_COORD) && ctx->Fog.Enabled ) { inputs |= VERT_BIT_FOG; } @@ -445,7 +527,8 @@ static char *fallbackStrings[] = { "Texgen unit 0", "Texgen unit 1", "Texgen unit 2", - "User disable" + "User disable", + "Fogcoord with separate specular lighting" }; diff --git a/src/mesa/drivers/dri/radeon/radeon_tcl.h b/src/mesa/drivers/dri/radeon/radeon_tcl.h index 062c9fbb543..168ab958a28 100644 --- a/src/mesa/drivers/dri/radeon/radeon_tcl.h +++ b/src/mesa/drivers/dri/radeon/radeon_tcl.h @@ -46,7 +46,10 @@ extern void radeonEmitPrimitive( GLcontext *ctx, GLuint first, GLuint last, GLuint flags ); extern void radeonTclFallback( GLcontext *ctx, GLuint bit, GLboolean mode ); - + +extern void radeonInitStaticFogData( void ); +extern float radeonComputeFogBlendFactor( GLcontext *ctx, GLfloat fogcoord ); + #define RADEON_TCL_FALLBACK_RASTER 0x1 /* rasterization */ #define RADEON_TCL_FALLBACK_UNFILLED 0x2 /* unfilled tris */ #define RADEON_TCL_FALLBACK_LIGHT_TWOSIDE 0x4 /* twoside tris */ @@ -55,6 +58,7 @@ extern void radeonTclFallback( GLcontext *ctx, GLuint bit, GLboolean mode ); #define RADEON_TCL_FALLBACK_TEXGEN_1 0x20 /* texgen, unit 1 */ #define RADEON_TCL_FALLBACK_TEXGEN_2 0x40 /* texgen, unit 2 */ #define RADEON_TCL_FALLBACK_TCL_DISABLE 0x80 /* user disable */ +#define RADEON_TCL_FALLBACK_FOGCOORDSPEC 0x100 /* fogcoord, sep. spec light */ /* max maos_verts vertex format has a size of 18 floats */ #define RADEON_MAX_TCL_VERTSIZE (18*4) diff --git a/src/mesa/drivers/dri/radeon/radeon_vtxfmt.c b/src/mesa/drivers/dri/radeon/radeon_vtxfmt.c index e554aeb3300..c734ab8d5ab 100644 --- a/src/mesa/drivers/dri/radeon/radeon_vtxfmt.c +++ b/src/mesa/drivers/dri/radeon/radeon_vtxfmt.c @@ -549,7 +549,8 @@ static GLboolean check_vtx_fmt( GLcontext *ctx ) GLuint ind = RADEON_CP_VC_FRMT_Z; GLuint unit; - if (rmesa->TclFallback || rmesa->vb.fell_back || ctx->CompileFlag) + if (rmesa->TclFallback || rmesa->vb.fell_back || ctx->CompileFlag || + (ctx->Fog.Enabled && (ctx->Fog.FogCoordinateSource == GL_FOG_COORD))) return GL_FALSE; if (ctx->Driver.NeedFlush & FLUSH_UPDATE_CURRENT) @@ -582,6 +583,10 @@ static GLboolean check_vtx_fmt( GLcontext *ctx ) } } + if ( ctx->Fog.FogCoordinateSource == GL_FOG_COORD ) { + ind |= RADEON_CP_VC_FRMT_PKSPEC; + } + for (unit = 0 ; unit < ctx->Const.MaxTextureUnits; unit++) { if (ctx->Texture.Unit[unit]._ReallyEnabled) { if (ctx->Texture.Unit[unit].TexGenEnabled) { @@ -657,6 +662,9 @@ static GLboolean check_vtx_fmt( GLcontext *ctx ) UNCLAMPED_FLOAT_TO_CHAN( rmesa->vb.specptr->red, ctx->Current.Attrib[VERT_ATTRIB_COLOR1][0] ); UNCLAMPED_FLOAT_TO_CHAN( rmesa->vb.specptr->green, ctx->Current.Attrib[VERT_ATTRIB_COLOR1][1] ); UNCLAMPED_FLOAT_TO_CHAN( rmesa->vb.specptr->blue, ctx->Current.Attrib[VERT_ATTRIB_COLOR1][2] ); + /* fog ??? */ +/* UNCLAMPED_FLOAT_TO_CHAN( rmesa->vb.specptr->alpha, + radeonComputeFogFactor(ctx->Current.Attrib[VERT_ATTRIB_FOG][0]) ); */ } for (unit = 0 ; unit < ctx->Const.MaxTextureUnits; unit++) { @@ -948,8 +956,6 @@ void radeonVtxfmtInit( GLcontext *ctx, GLboolean useCodegen ) /* Not active in supported states; just keep ctx->Current uptodate: */ - vfmt->FogCoordfvEXT = _mesa_noop_FogCoordfvEXT; - vfmt->FogCoordfEXT = _mesa_noop_FogCoordfEXT; vfmt->EdgeFlag = _mesa_noop_EdgeFlag; vfmt->EdgeFlagv = _mesa_noop_EdgeFlagv; vfmt->Indexf = _mesa_noop_Indexf; @@ -986,6 +992,8 @@ void radeonVtxfmtInit( GLcontext *ctx, GLboolean useCodegen ) vfmt->VertexAttrib3fvNV = radeon_fallback_VertexAttrib3fvNV; vfmt->VertexAttrib4fNV = radeon_fallback_VertexAttrib4fNV; vfmt->VertexAttrib4fvNV = radeon_fallback_VertexAttrib4fvNV; + vfmt->FogCoordfEXT = radeon_fallback_FogCoordfEXT; + vfmt->FogCoordfvEXT = radeon_fallback_FogCoordfvEXT; (void)radeon_fallback_vtxfmt; -- cgit v1.2.3