From e508f7f08e6fa4292136a377150fc058c041fbc0 Mon Sep 17 00:00:00 2001 From: Alan Hourihane Date: Tue, 30 Sep 2003 11:28:16 +0000 Subject: add gamma driver - no kernel driver yet (build tested, not physically tested) --- src/mesa/drivers/dri/gamma/gamma_render.c | 316 ++++++++++++++++++++++++++++++ 1 file changed, 316 insertions(+) create mode 100644 src/mesa/drivers/dri/gamma/gamma_render.c (limited to 'src/mesa/drivers/dri/gamma/gamma_render.c') diff --git a/src/mesa/drivers/dri/gamma/gamma_render.c b/src/mesa/drivers/dri/gamma/gamma_render.c new file mode 100644 index 0000000000..b8bf617156 --- /dev/null +++ b/src/mesa/drivers/dri/gamma/gamma_render.c @@ -0,0 +1,316 @@ +/* + * Copyright 2001 by Alan Hourihane. + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Alan Hourihane not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. Alan Hourihane makes no representations + * about the suitability of this software for any purpose. It is provided + * "as is" without express or implied warranty. + * + * ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL ALAN HOURIHANE BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + * + * Authors: Alan Hourihane, + * + * 3DLabs Gamma driver. + * + */ + +#include "glheader.h" +#include "context.h" +#include "macros.h" +#include "imports.h" +#include "mtypes.h" + +#include "tnl/t_context.h" + +#include "gamma_context.h" +#include "gamma_tris.h" +#include "gamma_vb.h" + + +/* !! Should template this eventually !! */ + +static void gamma_emit( GLcontext *ctx, GLuint start, GLuint end) +{ + gammaContextPtr gmesa = GAMMA_CONTEXT(ctx); + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + GLfloat (*coord)[4]; + GLuint coord_stride; + GLubyte (*col)[4]; + GLuint col_stride; + int i; + GLuint tc0_stride = 0; + GLfloat (*tc0)[4] = 0; + GLuint tc0_size = 0; + + if (VB->ColorPtr[0]->Type != GL_UNSIGNED_BYTE) + gamma_import_float_colors( ctx ); + + col = VB->ColorPtr[0]->Ptr; + col_stride = VB->ColorPtr[0]->StrideB; + + if (ctx->Texture.Unit[0]._ReallyEnabled) { + tc0_stride = VB->TexCoordPtr[0]->stride; + tc0 = VB->TexCoordPtr[0]->data; + tc0_size = VB->TexCoordPtr[0]->size; + coord = VB->ClipPtr->data; + coord_stride = VB->ClipPtr->stride; + } else { + coord = VB->NdcPtr->data; + coord_stride = VB->NdcPtr->stride; + } + + if (VB->importable_data) { + if (start) { + coord = (GLfloat (*)[4])((GLubyte *)coord + start * coord_stride); + STRIDE_4UB(col, start * col_stride); + if (ctx->Texture.Unit[0]._ReallyEnabled) + tc0 = (GLfloat (*)[4])((GLubyte *)tc0 + start * tc0_stride); + } + + if (ctx->Texture.Unit[0]._ReallyEnabled && tc0_size == 4) { + for (i=start; i < end; i++) { + CHECK_DMA_BUFFER(gmesa, 9); + WRITEF(gmesa->buf, Tq4, tc0[0][3]); + WRITEF(gmesa->buf, Tr4, tc0[0][2]); + WRITEF(gmesa->buf, Tt4, tc0[0][0]); + WRITEF(gmesa->buf, Ts4, tc0[0][1]); + WRITE(gmesa->buf, PackedColor4, *(CARD32*)col[0]); + WRITEF(gmesa->buf, Vw, coord[0][3]); + WRITEF(gmesa->buf, Vz, coord[0][2]); + WRITEF(gmesa->buf, Vy, coord[0][1]); + WRITEF(gmesa->buf, Vx4, coord[0][0]); + STRIDE_4UB(col, col_stride); + tc0 = (GLfloat (*)[4])((GLubyte *)tc0 + tc0_stride); + coord = (GLfloat (*)[4])((GLubyte *)coord + coord_stride); + } + } else if (ctx->Texture.Unit[0]._ReallyEnabled && tc0_size == 2) { + for (i=start; i < end; i++) { + CHECK_DMA_BUFFER(gmesa, 7); + WRITEF(gmesa->buf, Tt2, tc0[0][0]); + WRITEF(gmesa->buf, Ts2, tc0[0][1]); + WRITE(gmesa->buf, PackedColor4, *(CARD32*)col[0]); + WRITEF(gmesa->buf, Vw, coord[0][3]); + WRITEF(gmesa->buf, Vz, coord[0][2]); + WRITEF(gmesa->buf, Vy, coord[0][1]); + WRITEF(gmesa->buf, Vx4, coord[0][0]); + STRIDE_4UB(col, col_stride); + tc0 = (GLfloat (*)[4])((GLubyte *)tc0 + tc0_stride); + coord = (GLfloat (*)[4])((GLubyte *)coord + coord_stride); + } + } else { + for (i=start; i < end; i++) { + CHECK_DMA_BUFFER(gmesa, 4); + WRITE(gmesa->buf, PackedColor4, *(CARD32*)col[0]); + WRITEF(gmesa->buf, Vz, coord[0][2]); + WRITEF(gmesa->buf, Vy, coord[0][1]); + WRITEF(gmesa->buf, Vx3, coord[0][0]); + STRIDE_4UB(col, col_stride); + coord = (GLfloat (*)[4])((GLubyte *)coord + coord_stride); + } + } + } else { + if (ctx->Texture.Unit[0]._ReallyEnabled && tc0_size == 4) { + for (i=start; i < end; i++) { + CHECK_DMA_BUFFER(gmesa, 9); + WRITEF(gmesa->buf, Tq4, tc0[i][3]); + WRITEF(gmesa->buf, Tr4, tc0[i][2]); + WRITEF(gmesa->buf, Tt4, tc0[i][0]); + WRITEF(gmesa->buf, Ts4, tc0[i][1]); + WRITE(gmesa->buf, PackedColor4, *(CARD32*)col[i]); + WRITEF(gmesa->buf, Vw, coord[i][3]); + WRITEF(gmesa->buf, Vz, coord[i][2]); + WRITEF(gmesa->buf, Vy, coord[i][1]); + WRITEF(gmesa->buf, Vx4, coord[i][0]); + } + } else if (ctx->Texture.Unit[0]._ReallyEnabled && tc0_size == 2) { + for (i=start; i < end; i++) { + CHECK_DMA_BUFFER(gmesa, 7); + WRITEF(gmesa->buf, Tt2, tc0[i][0]); + WRITEF(gmesa->buf, Ts2, tc0[i][1]); + WRITE(gmesa->buf, PackedColor4, *(CARD32*)col[i]); + WRITEF(gmesa->buf, Vw, coord[i][3]); + WRITEF(gmesa->buf, Vz, coord[i][2]); + WRITEF(gmesa->buf, Vy, coord[i][1]); + WRITEF(gmesa->buf, Vx4, coord[i][0]); + } + } else { + for (i=start; i < end; i++) { + CHECK_DMA_BUFFER(gmesa, 4); + WRITE(gmesa->buf, PackedColor4, *(CARD32*)col[i]); + WRITEF(gmesa->buf, Vz, coord[i][2]); + WRITEF(gmesa->buf, Vy, coord[i][1]); + WRITEF(gmesa->buf, Vx3, coord[i][0]); + } + } + } +} + +#define HAVE_POINTS 1 +#define HAVE_LINES 1 +#define HAVE_LINE_STRIPS 1 +#define HAVE_TRIANGLES 1 +#define HAVE_TRI_STRIPS 1 +#define HAVE_TRI_STRIP_1 0 +#define HAVE_TRI_FANS 1 +#define HAVE_QUADS 1 +#define HAVE_QUAD_STRIPS 1 +#define HAVE_POLYGONS 1 + +#define HAVE_ELTS 0 + +static void VERT_FALLBACK( GLcontext *ctx, + GLuint start, + GLuint count, + GLuint flags ) +{ + TNLcontext *tnl = TNL_CONTEXT(ctx); + tnl->Driver.Render.PrimitiveNotify( ctx, flags & PRIM_MODE_MASK ); + tnl->Driver.Render.BuildVertices( ctx, start, count, ~0 ); + tnl->Driver.Render.PrimTabVerts[flags&PRIM_MODE_MASK]( ctx, start, count, flags ); + GAMMA_CONTEXT(ctx)->SetupNewInputs = VERT_BIT_CLIP; +} + +static const GLuint hw_prim[GL_POLYGON+1] = { + B_PrimType_Points, + B_PrimType_Lines, + B_PrimType_LineLoop, + B_PrimType_LineStrip, + B_PrimType_Triangles, + B_PrimType_TriangleStrip, + B_PrimType_TriangleFan, + B_PrimType_Quads, + B_PrimType_QuadStrip, + B_PrimType_Polygon +}; + +static __inline void gammaStartPrimitive( gammaContextPtr gmesa, GLenum prim ) +{ + CHECK_DMA_BUFFER(gmesa, 1); + WRITE(gmesa->buf, Begin, gmesa->Begin | hw_prim[prim]); +} + +static __inline void gammaEndPrimitive( gammaContextPtr gmesa ) +{ + GLcontext *ctx = gmesa->glCtx; + + if ( ctx->Line.SmoothFlag || + ctx->Polygon.SmoothFlag || + ctx->Point.SmoothFlag ) { + CHECK_DMA_BUFFER(gmesa, 1); + WRITE(gmesa->buf, FlushSpan, 0); + } + + CHECK_DMA_BUFFER(gmesa, 1); + WRITE(gmesa->buf, End, 0); +} + +#define LOCAL_VARS gammaContextPtr gmesa = GAMMA_CONTEXT(ctx) +#define INIT( prim ) gammaStartPrimitive( gmesa, prim ) +#define FINISH gammaEndPrimitive( gmesa ) +#define NEW_PRIMITIVE() /* GAMMA_STATECHANGE( gmesa, 0 ) */ +#define NEW_BUFFER() /* GAMMA_FIREVERTICES( gmesa ) */ +#define GET_CURRENT_VB_MAX_VERTS() \ + (gmesa->bufSize - gmesa->bufCount) / 2 +#define GET_SUBSEQUENT_VB_MAX_VERTS() \ + GAMMA_DMA_BUFFER_SIZE / 2 +#define EMIT_VERTS( ctx, j, nr ) gamma_emit(ctx, j, (j)+(nr)) + +#define TAG(x) gamma_##x +#include "tnl_dd/t_dd_dmatmp.h" + + +/**********************************************************************/ +/* Render pipeline stage */ +/**********************************************************************/ + + +static GLboolean gamma_run_render( GLcontext *ctx, + struct gl_pipeline_stage *stage ) +{ + gammaContextPtr gmesa = GAMMA_CONTEXT(ctx); + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + GLuint i, length, flags = 0; + render_func *tab; + + /* GH: THIS IS A HACK!!! */ + if (VB->ClipOrMask || gmesa->RenderIndex != 0) + return GL_TRUE; /* don't handle clipping here */ + + /* We don't do elts */ + if (VB->Elts) + return GL_TRUE; + + tab = TAG(render_tab_verts); + + tnl->Driver.Render.Start( ctx ); + + for (i = VB->FirstPrimitive ; !(flags & PRIM_LAST) ; i += length) + { + flags = VB->Primitive[i]; + length = VB->PrimitiveLength[i]; + if (length) + tab[flags & PRIM_MODE_MASK]( ctx, i, i + length, flags ); + } + + tnl->Driver.Render.Finish( ctx ); + + return GL_FALSE; /* finished the pipe */ +} + + +static void gamma_check_render( GLcontext *ctx, + struct gl_pipeline_stage *stage ) +{ + GLuint inputs = VERT_BIT_CLIP | VERT_BIT_COLOR0; + + if (ctx->RenderMode == GL_RENDER) { + if (ctx->_TriangleCaps & DD_SEPARATE_SPECULAR) + inputs |= VERT_BIT_COLOR1; + + if (ctx->Texture.Unit[0]._ReallyEnabled) + inputs |= VERT_BIT_TEX0; + + if (ctx->Texture.Unit[1]._ReallyEnabled) + inputs |= VERT_BIT_TEX1; + + if (ctx->Fog.Enabled) + inputs |= VERT_BIT_FOG; + } + + stage->inputs = inputs; +} + + +static void dtr( struct gl_pipeline_stage *stage ) +{ + (void)stage; +} + + +const struct gl_pipeline_stage _gamma_render_stage = +{ + "gamma render", + (_DD_NEW_SEPARATE_SPECULAR | + _NEW_TEXTURE| + _NEW_FOG| + _NEW_RENDERMODE), /* re-check (new inputs) */ + 0, /* re-run (always runs) */ + GL_TRUE, /* active */ + 0, 0, /* inputs (set in check_render), outputs */ + 0, 0, /* changed_inputs, private */ + dtr, /* destructor */ + gamma_check_render, /* check - initially set to alloc data */ + gamma_run_render /* run */ +}; -- cgit v1.2.3