| /* |
| * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved. |
| * Copyright 2001-2003 S3 Graphics, Inc. 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, 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 |
| * VIA, S3 GRAPHICS, AND/OR ITS 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. |
| */ |
| |
| |
| /* |
| * Render unclipped vertex buffers by emitting vertices directly to |
| * dma buffers. Use strip/fan hardware acceleration where possible. |
| * |
| */ |
| #include "glheader.h" |
| #include "context.h" |
| #include "macros.h" |
| #include "mtypes.h" |
| |
| #include "tnl/t_context.h" |
| |
| #include "via_context.h" |
| #include "via_tris.h" |
| #include "via_state.h" |
| #include "via_ioctl.h" |
| |
| /* |
| * Render unclipped vertex buffers by emitting vertices directly to |
| * dma buffers. Use strip/fan hardware primitives where possible. |
| * Try to simulate missing primitives with indexed vertices. |
| */ |
| #define HAVE_POINTS 1 |
| #define HAVE_LINES 1 |
| #define HAVE_LINE_STRIPS 1 |
| #define HAVE_LINE_LOOP 1 |
| #define HAVE_TRIANGLES 1 |
| #define HAVE_TRI_STRIPS 1 |
| #define HAVE_TRI_STRIP_1 0 |
| #define HAVE_TRI_FANS 1 |
| #define HAVE_POLYGONS 1 |
| #define HAVE_QUADS 0 |
| #define HAVE_QUAD_STRIPS 0 |
| |
| #define HAVE_ELTS 0 |
| |
| #define LOCAL_VARS struct via_context *vmesa = VIA_CONTEXT(ctx) |
| #define INIT(prim) do { \ |
| viaRasterPrimitive(ctx, prim, prim); \ |
| } while (0) |
| #define GET_CURRENT_VB_MAX_VERTS() \ |
| ((VIA_DMA_BUF_SZ - (512 + (int)vmesa->dmaLow)) / (vmesa->vertexSize * 4)) |
| #define GET_SUBSEQUENT_VB_MAX_VERTS() \ |
| (VIA_DMA_BUF_SZ - 512) / (vmesa->vertexSize * 4) |
| |
| #define ALLOC_VERTS( nr ) \ |
| viaExtendPrimitive( vmesa, (nr) * vmesa->vertexSize * 4) |
| |
| #define EMIT_VERTS(ctx, j, nr, buf) \ |
| _tnl_emit_vertices_to_buffer(ctx, j, (j)+(nr), buf ) |
| |
| #define FLUSH() VIA_FINISH_PRIM( vmesa ) |
| |
| #define TAG(x) via_fast##x |
| #include "tnl_dd/t_dd_dmatmp.h" |
| #undef TAG |
| #undef LOCAL_VARS |
| #undef INIT |
| |
| /**********************************************************************/ |
| /* Fast Render pipeline stage */ |
| /**********************************************************************/ |
| static GLboolean via_run_fastrender(GLcontext *ctx, |
| struct tnl_pipeline_stage *stage) |
| { |
| struct via_context *vmesa = VIA_CONTEXT(ctx); |
| TNLcontext *tnl = TNL_CONTEXT(ctx); |
| struct vertex_buffer *VB = &tnl->vb; |
| GLuint i; |
| |
| |
| tnl->Driver.Render.Start(ctx); |
| |
| if (VB->ClipOrMask || |
| vmesa->renderIndex != 0 || |
| !via_fastvalidate_render( ctx, VB )) { |
| tnl->Driver.Render.Finish(ctx); |
| return GL_TRUE; |
| } |
| |
| tnl->clipspace.new_inputs |= VERT_BIT_POS; |
| |
| for (i = 0; i < VB->PrimitiveCount; ++i) { |
| GLuint mode = _tnl_translate_prim(&VB->Primitive[i]); |
| GLuint start = VB->Primitive[i].start; |
| GLuint length = VB->Primitive[i].count; |
| if (length) |
| via_fastrender_tab_verts[mode & PRIM_MODE_MASK](ctx, start, start+length, mode); |
| } |
| |
| tnl->Driver.Render.Finish(ctx); |
| |
| return GL_FALSE; /* finished the pipe */ |
| } |
| |
| const struct tnl_pipeline_stage _via_fastrender_stage = |
| { |
| "via fast render", |
| NULL, |
| NULL, |
| NULL, |
| NULL, |
| via_run_fastrender /* run */ |
| }; |
| |
| |