/*
* Mesa 3-D graphics library
- * Version: 6.5
+ * Version: 6.5.1
*
* Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
*
_mesa_free_parameter_list(prog->Parameters);
}
+ /* XXX this is a little ugly */
+ if (prog->Target == GL_VERTEX_PROGRAM_ARB) {
+ struct gl_vertex_program *vprog = (struct gl_vertex_program *) prog;
+ if (vprog->TnlData)
+ _mesa_free(vprog->TnlData);
+ }
+
_mesa_free(prog);
}
+/**
+ * Return the gl_program object for a given ID.
+ * Basically just a wrapper for _mesa_HashLookup() to avoid a lot of
+ * casts elsewhere.
+ */
+struct gl_program *
+_mesa_lookup_program(GLcontext *ctx, GLuint id)
+{
+ if (id)
+ return (struct gl_program *) _mesa_HashLookup(ctx->Shared->Programs, id);
+ else
+ return NULL;
+}
+
/**********************************************************************/
/* Program parameter functions */
/**
- * Add a new unnamed constant to the parameter list.
+ * Add a new named constant to the parameter list.
+ * This will be used when the program contains something like this:
+ * PARAM myVals = { 0, 1, 2, 3 };
+ *
* \param paramList - the parameter list
* \param values - four float values
* \return index of the new parameter.
/**
* Add a new unnamed constant to the parameter list.
+ * This will be used when the program contains something like this:
+ * MOV r, { 0, 1, 2, 3 };
+ *
* \param paramList - the parameter list
* \param values - four float values
* \return index of the new parameter.
/**
* Add a new state reference to the parameter list.
+ * This will be used when the program contains something like this:
+ * PARAM ambient = state.material.front.ambient;
+ *
* \param paramList - the parameter list
* \param state - an array of 6 state tokens
- *
* \return index of the new parameter.
*/
GLint
case STATE_NORMAL_SCALE:
ASSIGN_4V(value, ctx->_ModelViewInvScale, 0, 0, 1);
break;
+ case STATE_TEXRECT_SCALE: {
+ const int unit = (int) state[2];
+ const struct gl_texture_object *texObj = ctx->Texture.Unit[unit]._Current;
+ if (texObj) {
+ struct gl_texture_image *texImage = texObj->Image[0][0];
+ ASSIGN_4V(value, 1.0 / texImage->Width, 1.0 / texImage->Height, 0, 1);
+ }
+ break;
+ }
default:
_mesa_problem(ctx, "Bad state switch in _mesa_fetch_state()");
return;
switch (state[1]) {
case STATE_NORMAL_SCALE:
return _NEW_MODELVIEW;
+ case STATE_TEXRECT_SCALE:
+ return _NEW_TEXTURE;
default:
_mesa_problem(NULL, "unexpected int. state in make_state_flags()");
return 0;
}
+/**
+ * Allocate an array of program instructions.
+ * \param numInst number of instructions
+ * \return pointer to instruction memory
+ */
+struct prog_instruction *
+_mesa_alloc_instructions(GLuint numInst)
+{
+ return (struct prog_instruction *)
+ _mesa_calloc(numInst * sizeof(struct prog_instruction));
+}
+
+
+/**
+ * Reallocate memory storing an array of program instructions.
+ * This is used when we need to append additional instructions onto an
+ * program.
+ * \param oldInst pointer to first of old/src instructions
+ * \param numOldInst number of instructions at <oldInst>
+ * \param numNewInst desired size of new instruction array.
+ * \return pointer to start of new instruction array.
+ */
+struct prog_instruction *
+_mesa_realloc_instructions(struct prog_instruction *oldInst,
+ GLuint numOldInst, GLuint numNewInst)
+{
+ struct prog_instruction *newInst;
+
+ newInst = (struct prog_instruction *)
+ _mesa_realloc(oldInst,
+ numOldInst * sizeof(struct prog_instruction),
+ numNewInst * sizeof(struct prog_instruction));
+
+ return newInst;
+}
+
+
/**
* Basic info about each instruction
*/
GLuint
_mesa_num_inst_src_regs(enum prog_opcode opcode)
{
- GLuint i;
-#ifdef DEBUG
- for (i = 0; i < MAX_OPCODE; i++) {
- ASSERT(i == InstInfo[i].Opcode);
- }
-#endif
- for (i = 0; i < MAX_OPCODE; i++) {
- if (InstInfo[i].Opcode == opcode) {
- return InstInfo[i].NumSrcRegs;
- }
- }
- _mesa_problem(NULL, "invalid opcode in _mesa_num_inst_src_regs");
- return 0;
+ ASSERT(opcode == InstInfo[opcode].Opcode);
+ return InstInfo[opcode].NumSrcRegs;
}
srcReg->NegateBase, GL_FALSE));
}
+void
+_mesa_print_alu_instruction(const struct prog_instruction *inst,
+ const char *opcode_string,
+ GLuint numRegs)
+{
+ GLuint j;
+
+ _mesa_printf("%s", opcode_string);
+
+ /* frag prog only */
+ if (inst->SaturateMode == SATURATE_ZERO_ONE)
+ _mesa_printf("_SAT");
+
+ if (inst->DstReg.File != PROGRAM_UNDEFINED) {
+ _mesa_printf(" %s[%d]%s",
+ program_file_string((enum register_file) inst->DstReg.File),
+ inst->DstReg.Index,
+ writemask_string(inst->DstReg.WriteMask));
+ }
+
+ if (numRegs > 0)
+ _mesa_printf(", ");
+
+ for (j = 0; j < numRegs; j++) {
+ print_src_reg(inst->SrcReg + j);
+ if (j + 1 < numRegs)
+ _mesa_printf(", ");
+ }
+
+ _mesa_printf(";\n");
+}
+
/**
* Print a single vertex/fragment program instruction.
/* XXX may need for other special-case instructions */
default:
/* typical alu instruction */
- {
- const GLuint numRegs = _mesa_num_inst_src_regs(inst->Opcode);
- GLuint j;
-
- _mesa_printf("%s", _mesa_opcode_string(inst->Opcode));
-
- /* frag prog only */
- if (inst->SaturateMode == SATURATE_ZERO_ONE)
- _mesa_printf("_SAT");
-
- if (inst->DstReg.File != PROGRAM_UNDEFINED) {
- _mesa_printf(" %s[%d]%s",
- program_file_string((enum register_file) inst->DstReg.File),
- inst->DstReg.Index,
- writemask_string(inst->DstReg.WriteMask));
- }
-
- if (numRegs > 0)
- _mesa_printf(", ");
-
- for (j = 0; j < numRegs; j++) {
- print_src_reg(inst->SrcReg + j);
- if (j + 1 < numRegs)
- _mesa_printf(", ");
- }
-
- _mesa_printf(";\n");
- }
+ _mesa_print_alu_instruction(inst,
+ _mesa_opcode_string(inst->Opcode),
+ _mesa_num_inst_src_regs(inst->Opcode));
+ break;
}
}
}
+/**
+ * Mixing ARB and NV vertex/fragment programs can be tricky.
+ * Note: GL_VERTEX_PROGRAM_ARB == GL_VERTEX_PROGRAM_NV
+ * but, GL_FRAGMENT_PROGRAM_ARB != GL_FRAGMENT_PROGRAM_NV
+ * The two different fragment program targets are supposed to be compatible
+ * to some extent (see GL_ARB_fragment_program spec).
+ * This function does the compatibility check.
+ */
+static GLboolean
+compatible_program_targets(GLenum t1, GLenum t2)
+{
+ if (t1 == t2)
+ return GL_TRUE;
+ if (t1 == GL_FRAGMENT_PROGRAM_ARB && t2 == GL_FRAGMENT_PROGRAM_NV)
+ return GL_TRUE;
+ if (t1 == GL_FRAGMENT_PROGRAM_NV && t2 == GL_FRAGMENT_PROGRAM_ARB)
+ return GL_TRUE;
+ return GL_FALSE;
+}
+
+
/**********************************************************************/
/* API functions */
void GLAPIENTRY
_mesa_BindProgram(GLenum target, GLuint id)
{
- struct gl_program *prog;
+ struct gl_program *curProg, *newProg;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
FLUSH_VERTICES(ctx, _NEW_PROGRAM);
+ /* Error-check target and get curProg */
if ((target == GL_VERTEX_PROGRAM_ARB) && /* == GL_VERTEX_PROGRAM_NV */
(ctx->Extensions.NV_vertex_program ||
ctx->Extensions.ARB_vertex_program)) {
- /*** Vertex program binding ***/
- struct gl_vertex_program *curProg = ctx->VertexProgram.Current;
- if (curProg->Base.Id == id) {
- /* binding same program - no change */
- return;
- }
- if (curProg->Base.Id != 0) {
- /* decrement refcount on previously bound vertex program */
- curProg->Base.RefCount--;
- /* and delete if refcount goes below one */
- if (curProg->Base.RefCount <= 0) {
- /* the program ID was already removed from the hash table */
- ctx->Driver.DeleteProgram(ctx, &(curProg->Base));
- }
- }
+ curProg = &ctx->VertexProgram.Current->Base;
}
else if ((target == GL_FRAGMENT_PROGRAM_NV
&& ctx->Extensions.NV_fragment_program) ||
(target == GL_FRAGMENT_PROGRAM_ARB
&& ctx->Extensions.ARB_fragment_program)) {
- /*** Fragment program binding ***/
- struct gl_fragment_program *curProg = ctx->FragmentProgram.Current;
- if (curProg->Base.Id == id) {
- /* binding same program - no change */
- return;
- }
- if (curProg->Base.Id != 0) {
- /* decrement refcount on previously bound fragment program */
- curProg->Base.RefCount--;
- /* and delete if refcount goes below one */
- if (curProg->Base.RefCount <= 0) {
- /* the program ID was already removed from the hash table */
- ctx->Driver.DeleteProgram(ctx, &(curProg->Base));
- }
- }
+ curProg = &ctx->FragmentProgram.Current->Base;
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glBindProgramNV/ARB(target)");
return;
}
- /* NOTE: binding to a non-existant program is not an error.
+ /*
+ * Get pointer to new program to bind.
+ * NOTE: binding to a non-existant program is not an error.
* That's supposed to be caught in glBegin.
*/
if (id == 0) {
- /* Bind default program */
- prog = NULL;
+ /* Bind a default program */
+ newProg = NULL;
if (target == GL_VERTEX_PROGRAM_ARB) /* == GL_VERTEX_PROGRAM_NV */
- prog = ctx->Shared->DefaultVertexProgram;
+ newProg = ctx->Shared->DefaultVertexProgram;
else
- prog = ctx->Shared->DefaultFragmentProgram;
+ newProg = ctx->Shared->DefaultFragmentProgram;
}
else {
- /* Bind user program */
- prog = (struct gl_program *) _mesa_HashLookup(ctx->Shared->Programs, id);
- if (!prog || prog == &_mesa_DummyProgram) {
+ /* Bind a user program */
+ newProg = _mesa_lookup_program(ctx, id);
+ if (!newProg || newProg == &_mesa_DummyProgram) {
/* allocate a new program now */
- prog = ctx->Driver.NewProgram(ctx, target, id);
- if (!prog) {
+ newProg = ctx->Driver.NewProgram(ctx, target, id);
+ if (!newProg) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindProgramNV/ARB");
return;
}
- _mesa_HashInsert(ctx->Shared->Programs, id, prog);
+ _mesa_HashInsert(ctx->Shared->Programs, id, newProg);
}
- else if (prog->Target != target) {
+ else if (!compatible_program_targets(newProg->Target, target)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glBindProgramNV/ARB(target mismatch)");
return;
}
}
- /* bind now */
+ /** All error checking is complete now **/
+
+ if (curProg->Id == id) {
+ /* binding same program - no change */
+ return;
+ }
+
+ /* unbind/delete oldProg */
+ if (curProg->Id != 0) {
+ /* decrement refcount on previously bound fragment program */
+ curProg->RefCount--;
+ /* and delete if refcount goes below one */
+ if (curProg->RefCount <= 0) {
+ /* the program ID was already removed from the hash table */
+ ctx->Driver.DeleteProgram(ctx, curProg);
+ }
+ }
+
+ /* bind newProg */
if (target == GL_VERTEX_PROGRAM_ARB) { /* == GL_VERTEX_PROGRAM_NV */
- ctx->VertexProgram.Current = (struct gl_vertex_program *) prog;
+ ctx->VertexProgram.Current = (struct gl_vertex_program *) newProg;
}
- else if (target == GL_FRAGMENT_PROGRAM_NV || target == GL_FRAGMENT_PROGRAM_ARB) {
- ctx->FragmentProgram.Current = (struct gl_fragment_program *) prog;
+ else if (target == GL_FRAGMENT_PROGRAM_NV ||
+ target == GL_FRAGMENT_PROGRAM_ARB) {
+ ctx->FragmentProgram.Current = (struct gl_fragment_program *) newProg;
}
+ newProg->RefCount++;
/* Never null pointers */
ASSERT(ctx->VertexProgram.Current);
ASSERT(ctx->FragmentProgram.Current);
- if (prog)
- prog->RefCount++;
-
if (ctx->Driver.BindProgram)
- ctx->Driver.BindProgram(ctx, target, prog);
+ ctx->Driver.BindProgram(ctx, target, newProg);
}
for (i = 0; i < n; i++) {
if (ids[i] != 0) {
- struct gl_program *prog = (struct gl_program *)
- _mesa_HashLookup(ctx->Shared->Programs, ids[i]);
+ struct gl_program *prog = _mesa_lookup_program(ctx, ids[i]);
if (prog == &_mesa_DummyProgram) {
_mesa_HashRemove(ctx->Shared->Programs, ids[i]);
}
if (id == 0)
return GL_FALSE;
- if (_mesa_HashLookup(ctx->Shared->Programs, id))
+ if (_mesa_lookup_program(ctx, id))
return GL_TRUE;
else
return GL_FALSE;
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