diff options
Diffstat (limited to 'src/mesa/drivers/dri/glamo/glamo_render.c')
| -rw-r--r-- | src/mesa/drivers/dri/glamo/glamo_render.c | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/glamo/glamo_render.c b/src/mesa/drivers/dri/glamo/glamo_render.c new file mode 100644 index 0000000000..3e7aec2dc5 --- /dev/null +++ b/src/mesa/drivers/dri/glamo/glamo_render.c @@ -0,0 +1,189 @@ +/* + * Direct Rendering Support for SMedia Glamo 336x/337x + * + * (c) 2009 Thomas White <taw@bitwiz.org.uk> + * + * 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 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 + * THE AUTHORS 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. + * + * + * Based on intel_render.c, to which the following notice applies: + * + * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. + * 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 TUNGSTEN 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 "main/glheader.h" +#include "main/context.h" +#include "main/macros.h" +#include "main/imports.h" +#include "main/mtypes.h" +#include "main/enums.h" + +#include "tnl/t_context.h" +#include "tnl/t_vertex.h" +#include "tnl/t_pipeline.h" + +#include "glamo_context.h" +#include "glamo_tris.h" + +/* + * Render unclipped vertex buffers by emitting vertices directly to + * VRAM buffers. Use strip/fan hardware primitives where possible. + * Try to simulate missing primitives with indexed vertices. + */ +#define HAVE_POINTS 0 +#define HAVE_LINES 1 +#define HAVE_LINE_STRIPS 1 +#define HAVE_TRIANGLES 1 +#define HAVE_TRI_STRIPS 1 +#define HAVE_TRI_STRIP_1 0 /* Has it, template can't use it yet */ +#define HAVE_TRI_FANS 1 +#define HAVE_POLYGONS 1 +#define HAVE_QUADS 0 +#define HAVE_QUAD_STRIPS 0 +#define HAVE_ELTS 0 + + +static inline GLuint glamoGetVBMax(struct glamo_context *glamo) +{ + return GLAMO_VB_SIZE / (4 * 4); +} + +static inline GLuint glamoGetCurrentMax(struct glamo_context *glamo) +{ + /* How many more vertices can be accommodated? + * Each vertex takes up 4x 32-bit fixed point values */ + return (GLAMO_VB_SIZE - glamo->prim.current_offset) / (4 * 4); +} + +#define LOCAL_VARS \ + struct glamo_context *gCtx = GLAMO_CONTEXT(ctx); + +#define INIT(prim) + +#define FLUSH() \ + do { \ + if ((gCtx)->prim.flush) \ + (gCtx)->prim.flush(gCtx); \ + } while (0) + +#define GET_SUBSEQUENT_VB_MAX_VERTS() glamoGetVBMax(gCtx) +#define GET_CURRENT_VB_MAX_VERTS() glamoGetCurrentMax(gCtx) + +#define ALLOC_VERTS(nr) glamoGetPrimSpace(gCtx, nr) + +#define EMIT_VERTS(ctx, j, nr, buf) \ + _tnl_emit_vertices_to_buffer(ctx, j, (j)+(nr), buf) + +#define TAG(x) glamo_##x +#include "tnl_dd/t_dd_dmatmp.h" + + +/**********************************************************************/ +/* Render pipeline stage */ +/**********************************************************************/ + + +static GLboolean glamoRunRender(GLcontext *ctx, + struct tnl_pipeline_stage *stage) +{ + struct glamo_context *gCtx = GLAMO_CONTEXT(ctx); + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + GLuint i; + + /* Don't handle clipping */ + if ( !glamo_validate_render(ctx, VB) ) { + return GL_TRUE; /* Failed */ + } + + tnl->clipspace.new_inputs |= VERT_BIT_POS; + + tnl->Driver.Render.Start(ctx); + + for ( i=0; i<VB->PrimitiveCount; i++ ) { + GLuint prim = _tnl_translate_prim(&VB->Primitive[i]); + GLuint start = VB->Primitive[i].start; + GLuint length = VB->Primitive[i].count; + + if (!length) continue; + + glamo_render_tab_verts[prim & PRIM_MODE_MASK](ctx, start, + start + length, prim); + } + + tnl->Driver.Render.Finish(ctx); + + if ((gCtx)->prim.flush) + (gCtx)->prim.flush(gCtx); + + return GL_FALSE; /* Ok */ +} + + +static const struct tnl_pipeline_stage _glamo_render_stage = { + "glamo render", + NULL, + NULL, + NULL, + NULL, + glamoRunRender +}; + + +const struct tnl_pipeline_stage *glamo_pipeline[] = { + &_tnl_vertex_transform_stage, + &_tnl_vertex_cull_stage, + &_tnl_normal_transform_stage, + &_tnl_lighting_stage, + &_tnl_fog_coordinate_stage, + &_tnl_texgen_stage, + &_tnl_texture_transform_stage, + &_tnl_point_attenuation_stage, + &_tnl_vertex_program_stage, + &_glamo_render_stage, /* ADD: unclipped rastersetup-to-dma */ + &_tnl_render_stage, + 0, +}; |