diff options
author | Zou Nan hai <nanhai.zou@intel.com> | 2007-07-04 10:52:35 +0800 |
---|---|---|
committer | Zou Nan hai <nanhai.zou@intel.com> | 2007-07-04 10:52:35 +0800 |
commit | fb9ee9b323bff93973a39560b2bc007aace4bddd (patch) | |
tree | 05e1e72e8f4d321cde2c48b8518e6d9736c680dd /src/mesa/swrast_setup/ss_tritmp.h | |
parent | 285b326c606e9b2f90e4fe177b15b3fa23239b86 (diff) | |
parent | 7ff4359a3be1278b26950f96ab23014a667af838 (diff) |
Merge branch 'master' of git+ssh://znh@git.freedesktop.org/git/mesa/mesa into 965-glsl
Diffstat (limited to 'src/mesa/swrast_setup/ss_tritmp.h')
-rw-r--r-- | src/mesa/swrast_setup/ss_tritmp.h | 169 |
1 files changed, 106 insertions, 63 deletions
diff --git a/src/mesa/swrast_setup/ss_tritmp.h b/src/mesa/swrast_setup/ss_tritmp.h index 5b14b283f1..c14468e951 100644 --- a/src/mesa/swrast_setup/ss_tritmp.h +++ b/src/mesa/swrast_setup/ss_tritmp.h @@ -1,8 +1,8 @@ /* * Mesa 3-D graphics library - * Version: 6.1 + * Version: 7.1 * - * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. + * Copyright (C) 1999-2007 Brian Paul 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"), @@ -26,9 +26,14 @@ */ +/** + * This is where we handle assigning vertex colors based on front/back + * facing, compute polygon offset and handle glPolygonMode(). + */ static void TAG(triangle)(GLcontext *ctx, GLuint e0, GLuint e1, GLuint e2 ) { struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + SScontext *swsetup = SWSETUP_CONTEXT(ctx); SWvertex *verts = SWSETUP_CONTEXT(ctx)->verts; SWvertex *v[3]; GLfloat z[3]; @@ -36,7 +41,8 @@ static void TAG(triangle)(GLcontext *ctx, GLuint e0, GLuint e1, GLuint e2 ) GLenum mode = GL_FILL; GLuint facing = 0; GLchan saved_color[3][4]; - GLchan saved_spec[3][4]; + GLfloat saved_col0[3][4]; + GLfloat saved_spec[3][4]; GLfloat saved_index[3]; v[0] = &verts[e0]; @@ -46,10 +52,10 @@ static void TAG(triangle)(GLcontext *ctx, GLuint e0, GLuint e1, GLuint e2 ) if (IND & (SS_TWOSIDE_BIT | SS_OFFSET_BIT | SS_UNFILLED_BIT)) { - GLfloat ex = v[0]->win[0] - v[2]->win[0]; - GLfloat ey = v[0]->win[1] - v[2]->win[1]; - GLfloat fx = v[1]->win[0] - v[2]->win[0]; - GLfloat fy = v[1]->win[1] - v[2]->win[1]; + GLfloat ex = v[0]->attrib[FRAG_ATTRIB_WPOS][0] - v[2]->attrib[FRAG_ATTRIB_WPOS][0]; + GLfloat ey = v[0]->attrib[FRAG_ATTRIB_WPOS][1] - v[2]->attrib[FRAG_ATTRIB_WPOS][1]; + GLfloat fx = v[1]->attrib[FRAG_ATTRIB_WPOS][0] - v[2]->attrib[FRAG_ATTRIB_WPOS][0]; + GLfloat fy = v[1]->attrib[FRAG_ATTRIB_WPOS][1] - v[2]->attrib[FRAG_ATTRIB_WPOS][1]; GLfloat cc = ex*fy - ey*fx; if (IND & (SS_TWOSIDE_BIT | SS_UNFILLED_BIT)) @@ -63,50 +69,74 @@ static void TAG(triangle)(GLcontext *ctx, GLuint e0, GLuint e1, GLuint e2 ) if (facing == 1) { if (IND & SS_TWOSIDE_BIT) { if (IND & SS_RGBA_BIT) { - GLfloat (*vbcolor)[4] = VB->ColorPtr[1]->data; + if (VB->ColorPtr[1]) { + GLfloat (*vbcolor)[4] = VB->ColorPtr[1]->data; - COPY_CHAN4(saved_color[0], v[0]->color); - COPY_CHAN4(saved_color[1], v[1]->color); - COPY_CHAN4(saved_color[2], v[2]->color); + if (swsetup->intColors) { + COPY_CHAN4(saved_color[0], v[0]->color); + COPY_CHAN4(saved_color[1], v[1]->color); + COPY_CHAN4(saved_color[2], v[2]->color); + } + else { + COPY_4V(saved_col0[0], v[0]->attrib[FRAG_ATTRIB_COL0]); + COPY_4V(saved_col0[1], v[1]->attrib[FRAG_ATTRIB_COL0]); + COPY_4V(saved_col0[2], v[2]->attrib[FRAG_ATTRIB_COL0]); + } - if (VB->ColorPtr[1]->stride) { - SS_COLOR(v[0]->color, vbcolor[e0]); - SS_COLOR(v[1]->color, vbcolor[e1]); - SS_COLOR(v[2]->color, vbcolor[e2]); - } - else { - SS_COLOR(v[0]->color, vbcolor[0]); - SS_COLOR(v[1]->color, vbcolor[0]); - SS_COLOR(v[2]->color, vbcolor[0]); - } + if (VB->ColorPtr[1]->stride) { + if (swsetup->intColors) { + SS_COLOR(v[0]->color, vbcolor[e0]); + SS_COLOR(v[1]->color, vbcolor[e1]); + SS_COLOR(v[2]->color, vbcolor[e2]); + } + else { + COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL0], vbcolor[e0]); + COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL0], vbcolor[e1]); + COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL0], vbcolor[e2]); + } + } + else { + /* flat shade */ + if (swsetup->intColors) { + SS_COLOR(v[0]->color, vbcolor[0]); + SS_COLOR(v[1]->color, vbcolor[0]); + SS_COLOR(v[2]->color, vbcolor[0]); + } + else { + COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL0], vbcolor[0]); + COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL0], vbcolor[0]); + COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL0], vbcolor[0]); + } + } + } if (VB->SecondaryColorPtr[1]) { GLfloat (*vbspec)[4] = VB->SecondaryColorPtr[1]->data; - COPY_CHAN4(saved_spec[0], v[0]->specular); - COPY_CHAN4(saved_spec[1], v[1]->specular); - COPY_CHAN4(saved_spec[2], v[2]->specular); + COPY_4V(saved_spec[0], v[0]->attrib[FRAG_ATTRIB_COL1]); + COPY_4V(saved_spec[1], v[1]->attrib[FRAG_ATTRIB_COL1]); + COPY_4V(saved_spec[2], v[2]->attrib[FRAG_ATTRIB_COL1]); if (VB->SecondaryColorPtr[1]->stride) { - SS_SPEC(v[0]->specular, vbspec[e0]); - SS_SPEC(v[1]->specular, vbspec[e1]); - SS_SPEC(v[2]->specular, vbspec[e2]); + SS_SPEC(v[0]->attrib[FRAG_ATTRIB_COL1], vbspec[e0]); + SS_SPEC(v[1]->attrib[FRAG_ATTRIB_COL1], vbspec[e1]); + SS_SPEC(v[2]->attrib[FRAG_ATTRIB_COL1], vbspec[e2]); } else { - SS_SPEC(v[0]->specular, vbspec[0]); - SS_SPEC(v[1]->specular, vbspec[0]); - SS_SPEC(v[2]->specular, vbspec[0]); + SS_SPEC(v[0]->attrib[FRAG_ATTRIB_COL1], vbspec[0]); + SS_SPEC(v[1]->attrib[FRAG_ATTRIB_COL1], vbspec[0]); + SS_SPEC(v[2]->attrib[FRAG_ATTRIB_COL1], vbspec[0]); } } } else { GLfloat *vbindex = (GLfloat *)VB->IndexPtr[1]->data; - saved_index[0] = v[0]->index; - saved_index[1] = v[1]->index; - saved_index[2] = v[2]->index; + saved_index[0] = v[0]->attrib[FRAG_ATTRIB_CI][0]; + saved_index[1] = v[1]->attrib[FRAG_ATTRIB_CI][0]; + saved_index[2] = v[2]->attrib[FRAG_ATTRIB_CI][0]; - SS_IND(v[0]->index, (GLuint) vbindex[e0]); - SS_IND(v[1]->index, (GLuint) vbindex[e1]); - SS_IND(v[2]->index, (GLuint) vbindex[e2]); + SS_IND(v[0]->attrib[FRAG_ATTRIB_CI][0], (GLuint) vbindex[e0]); + SS_IND(v[1]->attrib[FRAG_ATTRIB_CI][0], (GLuint) vbindex[e1]); + SS_IND(v[2]->attrib[FRAG_ATTRIB_CI][0], (GLuint) vbindex[e2]); } } } @@ -115,9 +145,9 @@ static void TAG(triangle)(GLcontext *ctx, GLuint e0, GLuint e1, GLuint e2 ) if (IND & SS_OFFSET_BIT) { offset = ctx->Polygon.OffsetUnits * ctx->DrawBuffer->_MRD; - z[0] = v[0]->win[2]; - z[1] = v[1]->win[2]; - z[2] = v[2]->win[2]; + z[0] = v[0]->attrib[FRAG_ATTRIB_WPOS][2]; + z[1] = v[1]->attrib[FRAG_ATTRIB_WPOS][2]; + z[2] = v[2]->attrib[FRAG_ATTRIB_WPOS][2]; if (cc * cc > 1e-16) { const GLfloat ez = z[0] - z[2]; const GLfloat fz = z[1] - z[2]; @@ -128,57 +158,70 @@ static void TAG(triangle)(GLcontext *ctx, GLuint e0, GLuint e1, GLuint e2 ) /* Unfortunately, we need to clamp to prevent negative Zs below. * Technically, we should do the clamping per-fragment. */ - offset = MAX2(offset, -v[0]->win[2]); - offset = MAX2(offset, -v[1]->win[2]); - offset = MAX2(offset, -v[2]->win[2]); + offset = MAX2(offset, -v[0]->attrib[FRAG_ATTRIB_WPOS][2]); + offset = MAX2(offset, -v[1]->attrib[FRAG_ATTRIB_WPOS][2]); + offset = MAX2(offset, -v[2]->attrib[FRAG_ATTRIB_WPOS][2]); } } } if (mode == GL_POINT) { if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetPoint) { - v[0]->win[2] += offset; - v[1]->win[2] += offset; - v[2]->win[2] += offset; + v[0]->attrib[FRAG_ATTRIB_WPOS][2] += offset; + v[1]->attrib[FRAG_ATTRIB_WPOS][2] += offset; + v[2]->attrib[FRAG_ATTRIB_WPOS][2] += offset; } _swsetup_render_point_tri( ctx, e0, e1, e2, facing ); } else if (mode == GL_LINE) { if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetLine) { - v[0]->win[2] += offset; - v[1]->win[2] += offset; - v[2]->win[2] += offset; + v[0]->attrib[FRAG_ATTRIB_WPOS][2] += offset; + v[1]->attrib[FRAG_ATTRIB_WPOS][2] += offset; + v[2]->attrib[FRAG_ATTRIB_WPOS][2] += offset; } _swsetup_render_line_tri( ctx, e0, e1, e2, facing ); } else { if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetFill) { - v[0]->win[2] += offset; - v[1]->win[2] += offset; - v[2]->win[2] += offset; + v[0]->attrib[FRAG_ATTRIB_WPOS][2] += offset; + v[1]->attrib[FRAG_ATTRIB_WPOS][2] += offset; + v[2]->attrib[FRAG_ATTRIB_WPOS][2] += offset; } _swrast_Triangle( ctx, v[0], v[1], v[2] ); } + /* + * Restore original vertex colors, etc. + */ if (IND & SS_OFFSET_BIT) { - v[0]->win[2] = z[0]; - v[1]->win[2] = z[1]; - v[2]->win[2] = z[2]; + v[0]->attrib[FRAG_ATTRIB_WPOS][2] = z[0]; + v[1]->attrib[FRAG_ATTRIB_WPOS][2] = z[1]; + v[2]->attrib[FRAG_ATTRIB_WPOS][2] = z[2]; } if (IND & SS_TWOSIDE_BIT) { if (facing == 1) { if (IND & SS_RGBA_BIT) { - COPY_CHAN4(v[0]->color, saved_color[0]); - COPY_CHAN4(v[1]->color, saved_color[1]); - COPY_CHAN4(v[2]->color, saved_color[2]); + if (VB->ColorPtr[1]) { + if (swsetup->intColors) { + COPY_CHAN4(v[0]->color, saved_color[0]); + COPY_CHAN4(v[1]->color, saved_color[1]); + COPY_CHAN4(v[2]->color, saved_color[2]); + } + else { + COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL0], saved_col0[0]); + COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL0], saved_col0[1]); + COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL0], saved_col0[2]); + } + } + if (VB->SecondaryColorPtr[1]) { - COPY_CHAN4(v[0]->specular, saved_spec[0]); - COPY_CHAN4(v[1]->specular, saved_spec[1]); - COPY_CHAN4(v[2]->specular, saved_spec[2]); + COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL1], saved_spec[0]); + COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL1], saved_spec[1]); + COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL1], saved_spec[2]); } } else { - v[0]->index = saved_index[0]; - v[1]->index = saved_index[1]; - v[2]->index = saved_index[2]; + v[0]->attrib[FRAG_ATTRIB_CI][0] = saved_index[0]; + v[1]->attrib[FRAG_ATTRIB_CI][0] = saved_index[1]; + v[2]->attrib[FRAG_ATTRIB_CI][0] = saved_index[2]; } } } |