mesa: remove MAX_VERTEX_PROGRAM_ATTRIBS

[mesa.git] / src / mesa / tnl / t_vb_program.c

diff --git a/src/mesa/tnl/t_vb_program.c b/src/mesa/tnl/t_vb_program.c
index 9323cc9c7ebdd012eda074bf5582a9392df16e2b..c35eaf1538e637d66c965644d5e69003d12f5ccb 100644 (file)
--- a/src/mesa/tnl/t_vb_program.c
+++ b/src/mesa/tnl/t_vb_program.c
@@ -30,20 +30,20 @@
  */
 
 
-#include "glheader.h"
-#include "colormac.h"
-#include "context.h"
-#include "macros.h"
-#include "imports.h"
+#include "main/glheader.h"
+#include "main/colormac.h"
+#include "main/context.h"
+#include "main/macros.h"
+#include "main/imports.h"
 #include "shader/prog_instruction.h"
 #include "shader/prog_statevars.h"
 #include "shader/prog_execute.h"
 #include "swrast/s_context.h"
 #include "swrast/s_texfilter.h"
 
-#include "tnl.h"
-#include "t_context.h"
-#include "t_pipeline.h"
+#include "tnl/tnl.h"
+#include "tnl/t_context.h"
+#include "tnl/t_pipeline.h"
 
 
 
@@ -63,18 +63,12 @@ struct vp_stage_data {
 #define VP_STAGE_DATA(stage) ((struct vp_stage_data *)(stage->privatePtr))
 
 
-/**
- * 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 userclip( GLcontext *ctx,
-                     GLvector4f *clip,
-                     GLubyte *clipmask,
-                     GLubyte *clipormask,
-                     GLubyte *clipandmask )
+static void
+userclip( GLcontext *ctx,
+          GLvector4f *clip,
+          GLubyte *clipmask,
+          GLubyte *clipormask,
+          GLubyte *clipandmask )
 {
    GLuint p;
 
@@ -172,21 +166,22 @@ do_ndc_cliptest(GLcontext *ctx, struct vp_stage_data *store)
 }
 
 
+/**
+ * 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]);
+                               &lambda,  (GLfloat (*)[4]) color);
 }
 
 
@@ -212,7 +207,7 @@ init_machine(GLcontext *ctx, struct gl_program_machine *machine)
 {
    /* Input registers get initialized from the current vertex attribs */
    MEMCPY(machine->VertAttribs, ctx->Current.Attrib,
-          MAX_VERTEX_PROGRAM_ATTRIBS * 4 * sizeof(GLfloat));
+          MAX_VERTEX_GENERIC_ATTRIBS * 4 * sizeof(GLfloat));
 
    if (ctx->VertexProgram._Current->IsNVProgram) {
       GLuint i;
@@ -242,6 +237,52 @@ init_machine(GLcontext *ctx, struct gl_program_machine *machine)
 
    machine->FetchTexelLod = vp_fetch_texel;
    machine->FetchTexelDeriv = NULL; /* not used by vertex programs */
+
+   machine->Samplers = ctx->VertexProgram._Current->Base.SamplerUnits;
+}
+
+
+/**
+ * Map the texture images which the vertex program will access (if any).
+ */
+static void
+map_textures(GLcontext *ctx, const struct gl_vertex_program *vp)
+{
+   GLuint u;
+
+   if (!ctx->Driver.MapTexture)
+      return;
+
+   for (u = 0; u < ctx->Const.MaxVertexTextureImageUnits; u++) {
+      if (vp->Base.TexturesUsed[u]) {
+         /* Note: _Current *should* correspond to the target indicated
+          * in TexturesUsed[u].
+          */
+         ctx->Driver.MapTexture(ctx, ctx->Texture.Unit[u]._Current);
+      }
+   }
+}
+
+
+/**
+ * Unmap the texture images which were used by the vertex program (if any).
+ */
+static void
+unmap_textures(GLcontext *ctx, const struct gl_vertex_program *vp)
+{
+   GLuint u;
+
+   if (!ctx->Driver.MapTexture)
+      return;
+
+   for (u = 0; u < ctx->Const.MaxVertexTextureImageUnits; u++) {
+      if (vp->Base.TexturesUsed[u]) {
+         /* Note: _Current *should* correspond to the target indicated
+          * in TexturesUsed[u].
+          */
+         ctx->Driver.UnmapTexture(ctx, ctx->Texture.Unit[u]._Current);
+      }
+   }
 }
 
 
@@ -270,6 +311,7 @@ run_vp( GLcontext *ctx, struct tnl_pipeline_stage *stage )
       _mesa_load_state_parameters(ctx, program->Base.Parameters);
    }
 
+   /* make list of outputs to save some time below */
    numOutputs = 0;
    for (i = 0; i < VERT_RESULT_MAX; i++) {
       if (program->Base.OutputsWritten & (1 << i)) {
@@ -277,6 +319,8 @@ run_vp( GLcontext *ctx, struct tnl_pipeline_stage *stage )
       }
    }
 
+   map_textures(ctx, program);
+
    for (i = 0; i < VB->Count; i++) {
       GLuint attr;
 
@@ -328,6 +372,8 @@ run_vp( GLcontext *ctx, struct tnl_pipeline_stage *stage )
 #endif
    }
 
+   unmap_textures(ctx, program);
+
    /* Fixup fog and point size results if needed */
    if (program->IsNVProgram) {
       if (ctx->Fog.Enabled &&
@@ -347,8 +393,9 @@ run_vp( GLcontext *ctx, struct tnl_pipeline_stage *stage )
 
    if (program->IsPositionInvariant) {
       /* We need the exact same transform as in the fixed function path here
-         to guarantee invariance, depending on compiler optimization flags results
-         could be different otherwise */
+       * to guarantee invariance, depending on compiler optimization flags
+       * results could be different otherwise.
+       */
       VB->ClipPtr = TransformRaw( &store->results[0],
                                  &ctx->_ModelProjectMatrix,
                                  VB->AttribPtr[0] );
@@ -368,16 +415,15 @@ run_vp( GLcontext *ctx, struct tnl_pipeline_stage *stage )
         break;
       }
    }
-
-
-   /* Setup the VB pointers so that the next pipeline stages get
-    * their data from the right place (the program output arrays).
-    */
    else {
+      /* Setup the VB pointers so that the next pipeline stages get
+       * their data from the right place (the program output arrays).
+       */
       VB->ClipPtr = &store->results[VERT_RESULT_HPOS];
       VB->ClipPtr->size = 4;
       VB->ClipPtr->count = VB->Count;
    }
+
    VB->ColorPtr[0] = &store->results[VERT_RESULT_COL0];
    VB->ColorPtr[1] = &store->results[VERT_RESULT_BFC0];
    VB->SecondaryColorPtr[0] = &store->results[VERT_RESULT_COL1];