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Diffstat (limited to 'src/mesa/shader/program.c')
-rw-r--r--src/mesa/shader/program.c163
1 files changed, 145 insertions, 18 deletions
diff --git a/src/mesa/shader/program.c b/src/mesa/shader/program.c
index b03dd24d11..37962f0e9b 100644
--- a/src/mesa/shader/program.c
+++ b/src/mesa/shader/program.c
@@ -121,6 +121,43 @@ _mesa_free_program_data(GLcontext *ctx)
/**
+ * Update the default program objects in the given context to reference those
+ * specified in the shared state and release those referencing the old
+ * shared state.
+ */
+void
+_mesa_update_default_objects_program(GLcontext *ctx)
+{
+#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
+ _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current,
+ (struct gl_vertex_program *)
+ ctx->Shared->DefaultVertexProgram);
+ assert(ctx->VertexProgram.Current);
+#endif
+
+#if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current,
+ (struct gl_fragment_program *)
+ ctx->Shared->DefaultFragmentProgram);
+ assert(ctx->FragmentProgram.Current);
+#endif
+
+ /* XXX probably move this stuff */
+#if FEATURE_ATI_fragment_shader
+ if (ctx->ATIFragmentShader.Current) {
+ ctx->ATIFragmentShader.Current->RefCount--;
+ if (ctx->ATIFragmentShader.Current->RefCount <= 0) {
+ _mesa_free(ctx->ATIFragmentShader.Current);
+ }
+ }
+ ctx->ATIFragmentShader.Current = (struct ati_fragment_shader *) ctx->Shared->DefaultFragmentShader;
+ assert(ctx->ATIFragmentShader.Current);
+ ctx->ATIFragmentShader.Current->RefCount++;
+#endif
+}
+
+
+/**
* Set the vertex/fragment program error state (position and error string).
* This is generally called from within the parsers.
*/
@@ -211,7 +248,7 @@ struct gl_program *
_mesa_init_fragment_program( GLcontext *ctx, struct gl_fragment_program *prog,
GLenum target, GLuint id)
{
- if (prog)
+ if (prog)
return _mesa_init_program_struct( ctx, &prog->Base, target, id );
else
return NULL;
@@ -225,7 +262,7 @@ struct gl_program *
_mesa_init_vertex_program( GLcontext *ctx, struct gl_vertex_program *prog,
GLenum target, GLuint id)
{
- if (prog)
+ if (prog)
return _mesa_init_program_struct( ctx, &prog->Base, target, id );
else
return NULL;
@@ -238,7 +275,7 @@ _mesa_init_vertex_program( GLcontext *ctx, struct gl_vertex_program *prog,
* ctx->Driver.NewProgram. May be overridden (ie. replaced) by a
* device driver function to implement OO deriviation with additional
* types not understood by this function.
- *
+ *
* \param ctx context
* \param id program id/number
* \param target program target/type
@@ -247,19 +284,23 @@ _mesa_init_vertex_program( GLcontext *ctx, struct gl_vertex_program *prog,
struct gl_program *
_mesa_new_program(GLcontext *ctx, GLenum target, GLuint id)
{
+ struct gl_program *prog;
switch (target) {
case GL_VERTEX_PROGRAM_ARB: /* == GL_VERTEX_PROGRAM_NV */
- return _mesa_init_vertex_program(ctx, CALLOC_STRUCT(gl_vertex_program),
+ prog = _mesa_init_vertex_program(ctx, CALLOC_STRUCT(gl_vertex_program),
target, id );
+ break;
case GL_FRAGMENT_PROGRAM_NV:
case GL_FRAGMENT_PROGRAM_ARB:
- return _mesa_init_fragment_program(ctx,
+ prog =_mesa_init_fragment_program(ctx,
CALLOC_STRUCT(gl_fragment_program),
target, id );
+ break;
default:
_mesa_problem(ctx, "bad target in _mesa_new_program");
- return NULL;
+ prog = NULL;
}
+ return prog;
}
@@ -278,7 +319,7 @@ _mesa_delete_program(GLcontext *ctx, struct gl_program *prog)
if (prog == &_mesa_DummyProgram)
return;
-
+
if (prog->String)
_mesa_free(prog->String);
@@ -331,7 +372,11 @@ _mesa_reference_program(GLcontext *ctx,
assert(ptr);
if (*ptr && prog) {
/* sanity check */
- ASSERT((*ptr)->Target == prog->Target);
+ if ((*ptr)->Target == GL_VERTEX_PROGRAM_ARB)
+ ASSERT(prog->Target == GL_VERTEX_PROGRAM_ARB);
+ else if ((*ptr)->Target == GL_FRAGMENT_PROGRAM_ARB)
+ ASSERT(prog->Target == GL_FRAGMENT_PROGRAM_ARB ||
+ prog->Target == GL_FRAGMENT_PROGRAM_NV);
}
if (*ptr == prog) {
return; /* no change */
@@ -341,15 +386,17 @@ _mesa_reference_program(GLcontext *ctx,
/*_glthread_LOCK_MUTEX((*ptr)->Mutex);*/
#if 0
- printf("Program %p %u 0x%x Refcount-- to %d\n",
- *ptr, (*ptr)->Id, (*ptr)->Target, (*ptr)->RefCount - 1);
+ printf("Program %p ID=%u Target=%s Refcount-- to %d\n",
+ *ptr, (*ptr)->Id,
+ ((*ptr)->Target == GL_VERTEX_PROGRAM_ARB ? "VP" : "FP"),
+ (*ptr)->RefCount - 1);
#endif
ASSERT((*ptr)->RefCount > 0);
(*ptr)->RefCount--;
deleteFlag = ((*ptr)->RefCount == 0);
/*_glthread_UNLOCK_MUTEX((*ptr)->Mutex);*/
-
+
if (deleteFlag) {
ASSERT(ctx);
ctx->Driver.DeleteProgram(ctx, *ptr);
@@ -363,8 +410,10 @@ _mesa_reference_program(GLcontext *ctx,
/*_glthread_LOCK_MUTEX(prog->Mutex);*/
prog->RefCount++;
#if 0
- printf("Program %p %u 0x%x Refcount++ to %d\n",
- prog, prog->Id, prog->Target, prog->RefCount);
+ printf("Program %p ID=%u Target=%s Refcount++ to %d\n",
+ prog, prog->Id,
+ (prog->Target == GL_VERTEX_PROGRAM_ARB ? "VP" : "FP"),
+ prog->RefCount);
#endif
/*_glthread_UNLOCK_MUTEX(prog->Mutex);*/
}
@@ -402,6 +451,7 @@ _mesa_clone_program(GLcontext *ctx, const struct gl_program *prog)
clone->InputsRead = prog->InputsRead;
clone->OutputsWritten = prog->OutputsWritten;
clone->SamplersUsed = prog->SamplersUsed;
+ clone->ShadowSamplers = prog->ShadowSamplers;
memcpy(clone->TexturesUsed, prog->TexturesUsed, sizeof(prog->TexturesUsed));
if (prog->Parameters)
@@ -504,6 +554,52 @@ _mesa_insert_instructions(struct gl_program *prog, GLuint start, GLuint count)
return GL_TRUE;
}
+/**
+ * Delete 'count' instructions at 'start' in the given program.
+ * Adjust branch targets accordingly.
+ */
+GLboolean
+_mesa_delete_instructions(struct gl_program *prog, GLuint start, GLuint count)
+{
+ const GLuint origLen = prog->NumInstructions;
+ const GLuint newLen = origLen - count;
+ struct prog_instruction *newInst;
+ GLuint i;
+
+ /* adjust branches */
+ for (i = 0; i < prog->NumInstructions; i++) {
+ struct prog_instruction *inst = prog->Instructions + i;
+ if (inst->BranchTarget > 0) {
+ if (inst->BranchTarget >= start) {
+ inst->BranchTarget -= count;
+ }
+ }
+ }
+
+ /* Alloc storage for new instructions */
+ newInst = _mesa_alloc_instructions(newLen);
+ if (!newInst) {
+ return GL_FALSE;
+ }
+
+ /* Copy 'start' instructions into new instruction buffer */
+ _mesa_copy_instructions(newInst, prog->Instructions, start);
+
+ /* Copy the remaining/tail instructions to new inst buffer */
+ _mesa_copy_instructions(newInst + start,
+ prog->Instructions + start + count,
+ newLen - start);
+
+ /* free old instructions */
+ _mesa_free_instructions(prog->Instructions, origLen);
+
+ /* install new instructions */
+ prog->Instructions = newInst;
+ prog->NumInstructions = newLen;
+
+ return GL_TRUE;
+}
+
/**
* Search instructions for registers that match (oldFile, oldIndex),
@@ -594,17 +690,47 @@ _mesa_combine_programs(GLcontext *ctx,
if (newProg->Target == GL_FRAGMENT_PROGRAM_ARB) {
struct gl_fragment_program *fprogA, *fprogB, *newFprog;
+ GLbitfield progB_inputsRead = progB->InputsRead;
+ GLint progB_colorFile, progB_colorIndex;
+
fprogA = (struct gl_fragment_program *) progA;
fprogB = (struct gl_fragment_program *) progB;
newFprog = (struct gl_fragment_program *) newProg;
newFprog->UsesKill = fprogA->UsesKill || fprogB->UsesKill;
+ /* We'll do a search and replace for instances
+ * of progB_colorFile/progB_colorIndex below...
+ */
+ progB_colorFile = PROGRAM_INPUT;
+ progB_colorIndex = FRAG_ATTRIB_COL0;
+
+ /*
+ * The fragment program may get color from a state var rather than
+ * a fragment input (vertex output) if it's constant.
+ * See the texenvprogram.c code.
+ * So, search the program's parameter list now to see if the program
+ * gets color from a state var instead of a conventional fragment
+ * input register.
+ */
+ for (i = 0; i < progB->Parameters->NumParameters; i++) {
+ struct gl_program_parameter *p = &progB->Parameters->Parameters[i];
+ if (p->Type == PROGRAM_STATE_VAR &&
+ p->StateIndexes[0] == STATE_INTERNAL &&
+ p->StateIndexes[1] == STATE_CURRENT_ATTRIB &&
+ p->StateIndexes[2] == VERT_ATTRIB_COLOR0) {
+ progB_inputsRead |= FRAG_BIT_COL0;
+ progB_colorFile = PROGRAM_STATE_VAR;
+ progB_colorIndex = i;
+ break;
+ }
+ }
+
/* Connect color outputs of fprogA to color inputs of fprogB, via a
* new temporary register.
*/
if ((progA->OutputsWritten & (1 << FRAG_RESULT_COLR)) &&
- (progB->InputsRead & (1 << FRAG_ATTRIB_COL0))) {
+ (progB_inputsRead & FRAG_BIT_COL0)) {
GLint tempReg = _mesa_find_free_register(newProg, PROGRAM_TEMPORARY);
if (tempReg < 0) {
_mesa_problem(ctx, "No free temp regs found in "
@@ -615,13 +741,14 @@ _mesa_combine_programs(GLcontext *ctx,
replace_registers(newInst, lenA,
PROGRAM_OUTPUT, FRAG_RESULT_COLR,
PROGRAM_TEMPORARY, tempReg);
- /* replace reads from input.color[0] with tempReg */
+ /* replace reads from the input color with tempReg */
replace_registers(newInst + lenA, lenB,
- PROGRAM_INPUT, FRAG_ATTRIB_COL0,
- PROGRAM_TEMPORARY, tempReg);
+ progB_colorFile, progB_colorIndex, /* search for */
+ PROGRAM_TEMPORARY, tempReg /* replace with */ );
}
- inputsB = progB->InputsRead;
+ /* compute combined program's InputsRead */
+ inputsB = progB_inputsRead;
if (progA->OutputsWritten & (1 << FRAG_RESULT_COLR)) {
inputsB &= ~(1 << FRAG_ATTRIB_COL0);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 08:31:43 +0000