diff options
Diffstat (limited to 'src/mesa/tnl')
| -rw-r--r-- | src/mesa/tnl/t_vb_program.c | 58 |
1 files changed, 47 insertions, 11 deletions
diff --git a/src/mesa/tnl/t_vb_program.c b/src/mesa/tnl/t_vb_program.c index 3d7ea3a06ab..81e166bde50 100644 --- a/src/mesa/tnl/t_vb_program.c +++ b/src/mesa/tnl/t_vb_program.c @@ -25,12 +25,13 @@ /** * \file tnl/t_vb_program.c - * \brief Pipeline stage for executing NVIDIA vertex programs. + * \brief Pipeline stage for executing vertex programs. * \author Brian Paul, Keith Whitwell */ #include "glheader.h" +#include "colormac.h" #include "context.h" #include "macros.h" #include "imports.h" @@ -42,6 +43,32 @@ #include "t_context.h" #include "t_pipeline.h" +#include "swrast/s_context.h" +#include "swrast/s_texfilter.h" + +/** + * XXX the texture sampling code in this module is a bit of a hack. + * The texture sampling code is in swrast, though it doesn't have any + * real dependencies on the rest of swrast. It should probably be + * moved into main/ someday. + */ + +static void +vp_fetch_texel(GLcontext *ctx, const GLfloat texcoord[4], GLfloat lambda, + GLuint unit, GLfloat color[4]) +{ + GLchan rgba[4]; + SWcontext *swrast = SWRAST_CONTEXT(ctx); + + /* XXX use a float-valued TextureSample routine here!!! */ + swrast->TextureSample[unit](ctx, ctx->Texture.Unit[unit]._Current, + 1, (const GLfloat (*)[4]) texcoord, + &lambda, &rgba); + color[0] = CHAN_TO_FLOAT(rgba[0]); + color[1] = CHAN_TO_FLOAT(rgba[1]); + color[2] = CHAN_TO_FLOAT(rgba[2]); + color[3] = CHAN_TO_FLOAT(rgba[3]); +} /** @@ -107,6 +134,9 @@ init_machine(GLcontext *ctx, struct gl_program_machine *machine) /* init call stack */ machine->StackDepth = 0; + + machine->FetchTexelLod = vp_fetch_texel; + machine->FetchTexelDeriv = NULL; /* not used by vertex programs */ } @@ -216,19 +246,14 @@ run_vp( GLcontext *ctx, struct tnl_pipeline_stage *stage ) GLuint outputs[VERT_RESULT_MAX], numOutputs; GLuint i, j; -#define FORCE_PROG_EXECUTE_C 1 -#if FORCE_PROG_EXECUTE_C if (!program) return GL_TRUE; -#else - if (!program || !program->IsNVProgram) - return GL_TRUE; -#endif if (program->IsNVProgram) { _mesa_load_tracked_matrices(ctx); } else { + /* ARB program or vertex shader */ _mesa_load_state_parameters(ctx, program->Base.Parameters); } @@ -380,8 +405,8 @@ run_vp( GLcontext *ctx, struct tnl_pipeline_stage *stage ) * Called the first time stage->run is called. In effect, don't * allocate data until the first time the stage is run. */ -static GLboolean init_vp( GLcontext *ctx, - struct tnl_pipeline_stage *stage ) +static GLboolean +init_vp(GLcontext *ctx, struct tnl_pipeline_stage *stage) { TNLcontext *tnl = TNL_CONTEXT(ctx); struct vertex_buffer *VB = &(tnl->vb); @@ -411,7 +436,8 @@ static GLboolean init_vp( GLcontext *ctx, /** * Destructor for this pipeline stage. */ -static void dtr( struct tnl_pipeline_stage *stage ) +static void +dtr(struct tnl_pipeline_stage *stage) { struct vp_stage_data *store = VP_STAGE_DATA(stage); @@ -432,6 +458,16 @@ static void dtr( struct tnl_pipeline_stage *stage ) } +static void +validate_vp_stage(GLcontext *ctx, struct tnl_pipeline_stage *stage) +{ + if (ctx->VertexProgram._Current) { + _swrast_update_texture_samplers(ctx); + } +} + + + /** * Public description of this pipeline stage. */ @@ -441,6 +477,6 @@ const struct tnl_pipeline_stage _tnl_vertex_program_stage = NULL, /* private_data */ init_vp, /* create */ dtr, /* destroy */ - NULL, /* validate */ + validate_vp_stage, /* validate */ run_vp /* run -- initially set to ctr */ }; |