Merge branch 'mesa_7_7_branch'

[mesa.git] / src / mesa / shader / nvprogram.c

diff --git a/src/mesa/shader/nvprogram.c b/src/mesa/shader/nvprogram.c
index d6469b17bea7074228a4061219acbd4c26b527eb..fd6cbb0f40972c11b8cf49d535d041fa422f0a19 100644 (file)
--- a/src/mesa/shader/nvprogram.c
+++ b/src/mesa/shader/nvprogram.c
@@ -47,6 +47,7 @@
 #include "prog_instruction.h"
 #include "nvfragparse.h"
 #include "nvvertparse.h"
+#include "arbprogparse.h"
 #include "nvprogram.h"
 
 
@@ -509,7 +510,79 @@ _mesa_GetVertexAttribPointervNV(GLuint index, GLenum pname, GLvoid **pointer)
    *pointer = (GLvoid *) ctx->Array.ArrayObj->VertexAttrib[index].Ptr;
 }
 
+void
+_mesa_emit_nv_temp_initialization(GLcontext *ctx,
+                                 struct gl_program *program)
+{
+   struct prog_instruction *inst;
+   int i;
+
+   if (!ctx->Shader.EmitNVTempInitialization)
+      return;
+
+   /* We'll swizzle up a zero temporary so we can use it for the
+    * ARL.
+    */
+   if (program->NumTemporaries == 0)
+      program->NumTemporaries = 1;
+
+   _mesa_insert_instructions(program, 0, program->NumTemporaries + 1);
+
+   for (i = 0; i < program->NumTemporaries; i++) {
+      struct prog_instruction *inst = &program->Instructions[i];
+
+      inst->Opcode = OPCODE_SWZ;
+      inst->DstReg.File = PROGRAM_TEMPORARY;
+      inst->DstReg.Index = i;
+      inst->DstReg.WriteMask = WRITEMASK_XYZW;
+      inst->SrcReg[0].File = PROGRAM_TEMPORARY;
+      inst->SrcReg[0].Index = 0;
+      inst->SrcReg[0].Swizzle = MAKE_SWIZZLE4(SWIZZLE_ZERO,
+                                             SWIZZLE_ZERO,
+                                             SWIZZLE_ZERO,
+                                             SWIZZLE_ZERO);
+   }
+
+   inst = &program->Instructions[i];
+   inst->Opcode = OPCODE_ARL;
+   inst->DstReg.File = PROGRAM_ADDRESS;
+   inst->DstReg.Index = 0;
+   inst->DstReg.WriteMask = WRITEMASK_XYZW;
+   inst->SrcReg[0].File = PROGRAM_TEMPORARY;
+   inst->SrcReg[0].Index = 0;
+   inst->SrcReg[0].Swizzle = SWIZZLE_XXXX;
+
+   if (program->NumAddressRegs == 0)
+      program->NumAddressRegs = 1;
+}
+
+void
+_mesa_setup_nv_temporary_count(GLcontext *ctx, struct gl_program *program)
+{
+   int i;
 
+   program->NumTemporaries = 0;
+   for (i = 0; i < program->NumInstructions; i++) {
+      struct prog_instruction *inst = &program->Instructions[i];
+
+      if (inst->DstReg.File == PROGRAM_TEMPORARY) {
+        program->NumTemporaries = MAX2(program->NumTemporaries,
+                                       inst->DstReg.Index + 1);
+      }
+      if (inst->SrcReg[0].File == PROGRAM_TEMPORARY) {
+        program->NumTemporaries = MAX2(program->NumTemporaries,
+                                       inst->SrcReg[0].Index + 1);
+      }
+      if (inst->SrcReg[1].File == PROGRAM_TEMPORARY) {
+        program->NumTemporaries = MAX2(program->NumTemporaries,
+                                       inst->SrcReg[1].Index + 1);
+      }
+      if (inst->SrcReg[2].File == PROGRAM_TEMPORARY) {
+        program->NumTemporaries = MAX2(program->NumTemporaries,
+                                       inst->SrcReg[2].Index + 1);
+      }
+   }
+}
 
 /**
  * Load/parse/compile a program.
@@ -523,6 +596,12 @@ _mesa_LoadProgramNV(GLenum target, GLuint id, GLsizei len,
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
+   if (!ctx->Extensions.NV_vertex_program
+       && !ctx->Extensions.NV_fragment_program) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glLoadProgramNV()");
+      return;
+   }
+
    if (id == 0) {
       _mesa_error(ctx, GL_INVALID_VALUE, "glLoadProgramNV(id)");
       return;
@@ -555,7 +634,13 @@ _mesa_LoadProgramNV(GLenum target, GLuint id, GLsizei len,
          }
          _mesa_HashInsert(ctx->Shared->Programs, id, vprog);
       }
-      _mesa_parse_nv_vertex_program(ctx, target, program, len, vprog);
+
+      if (ctx->Extensions.ARB_vertex_program
+         && (strncmp((char *) program, "!!ARB", 5) == 0)) {
+        _mesa_parse_arb_vertex_program(ctx, target, program, len, vprog);
+      } else {
+        _mesa_parse_nv_vertex_program(ctx, target, program, len, vprog);
+      }
    }
    else if (target == GL_FRAGMENT_PROGRAM_NV
             && ctx->Extensions.NV_fragment_program) {
@@ -571,6 +656,20 @@ _mesa_LoadProgramNV(GLenum target, GLuint id, GLsizei len,
       }
       _mesa_parse_nv_fragment_program(ctx, target, program, len, fprog);
    }
+   else if (target == GL_FRAGMENT_PROGRAM_ARB
+            && ctx->Extensions.ARB_fragment_program) {
+      struct gl_fragment_program *fprog = (struct gl_fragment_program *) prog;
+      if (!fprog || prog == &_mesa_DummyProgram) {
+         fprog = (struct gl_fragment_program *)
+            ctx->Driver.NewProgram(ctx, target, id);
+         if (!fprog) {
+            _mesa_error(ctx, GL_OUT_OF_MEMORY, "glLoadProgramNV");
+            return;
+         }
+         _mesa_HashInsert(ctx->Shared->Programs, id, fprog);
+      }
+      _mesa_parse_arb_fragment_program(ctx, target, program, len, fprog);
+   }
    else {
       _mesa_error(ctx, GL_INVALID_ENUM, "glLoadProgramNV(target)");
    }