#include "prog_instruction.h"
#include "prog_parameter.h"
#include "prog_print.h"
+#include "prog_statevars.h"
#include "shader_api.h"
#include "slang_link.h"
file == PROGRAM_STATE_VAR ||
file == PROGRAM_NAMED_PARAM ||
file == PROGRAM_CONSTANT ||
+ file == PROGRAM_SAMPLER ||
file == PROGRAM_UNIFORM);
}
GLuint *map, i;
#if 0
- _mesa_print_parameter_list(prog->Parameters);
+ printf("================ pre link uniforms ===============\n");
+ _mesa_print_parameter_list(shProg->Uniforms);
#endif
map = (GLuint *) malloc(prog->Parameters->NumParameters * sizeof(GLuint));
case PROGRAM_UNIFORM:
j = _mesa_add_uniform(shProg->Uniforms, p->Name, p->Size);
break;
+ case PROGRAM_SAMPLER:
+ j = _mesa_add_sampler(shProg->Uniforms, p->Name);
+ break;
default:
abort();
}
}
+#if 0
+ printf("================ post link uniforms ===============\n");
+ _mesa_print_parameter_list(shProg->Uniforms);
+#endif
+
#if 0
{
GLuint i;
inst->SrcReg[j].Index = map[ inst->SrcReg[j].Index ];
}
}
- /* XXX update program OutputsWritten, InputsRead */
+
+ if (inst->Opcode == OPCODE_TEX ||
+ inst->Opcode == OPCODE_TXB ||
+ inst->Opcode == OPCODE_TXP) {
+ /*
+ printf("====== remap sampler from %d to %d\n",
+ inst->Sampler, map[ inst->Sampler ]);
+ */
+ inst->Sampler = map[ inst->Sampler ];
+ }
}
free(map);
* XXX Temporary
*/
static void
-slang_resolve_branches(struct gl_program *prog)
+_slang_resolve_branches(struct gl_program *prog)
{
struct target {
const char *Name;
}
+/**
+ * Resolve binding of generic vertex attributes.
+ * For example, if the vertex shader declared "attribute vec4 foobar" we'll
+ * allocate a generic vertex attribute for "foobar" and plug that value into
+ * the vertex program instructions.
+ */
+static GLboolean
+_slang_resolve_attributes(struct gl_shader_program *shProg,
+ struct gl_program *prog)
+{
+ GLuint i, j;
+ GLbitfield usedAttributes;
+ GLint size = 4; /* XXX fix */
+
+ assert(prog->Target == GL_VERTEX_PROGRAM_ARB);
+
+ /* Build a bitmask indicating which attribute indexes have been
+ * explicitly bound by the user with glBindAttributeLocation().
+ */
+ usedAttributes = 0x0;
+ for (i = 0; i < shProg->Attributes->NumParameters; i++) {
+ GLint attr = shProg->Attributes->Parameters[i].StateIndexes[0];
+ usedAttributes |= attr;
+ }
+
+ if (!shProg->Attributes)
+ shProg->Attributes = _mesa_new_parameter_list();
+
+ /*
+ * Scan program for generic attribute references
+ */
+ for (i = 0; i < prog->NumInstructions; i++) {
+ struct prog_instruction *inst = prog->Instructions + i;
+ for (j = 0; j < 3; j++) {
+ if (inst->SrcReg[j].File == PROGRAM_INPUT &&
+ inst->SrcReg[j].Index >= VERT_ATTRIB_GENERIC0) {
+ /* this is a generic attrib */
+ const GLint k = inst->SrcReg[j].Index - VERT_ATTRIB_GENERIC0;
+ const char *name = prog->Attributes->Parameters[k].Name;
+ /* See if this attrib name is in the program's attribute list
+ * (i.e. was bound by the user).
+ */
+ GLint index = _mesa_lookup_parameter_index(shProg->Attributes,
+ -1, name);
+ GLint attr;
+ if (index >= 0) {
+ /* found, user must have specified a binding */
+ attr = shProg->Attributes->Parameters[index].StateIndexes[0];
+ }
+ else {
+ /* Not found, choose our own attribute number.
+ * Start at 1 since generic attribute 0 always aliases
+ * glVertex/position.
+ */
+ for (attr = 1; attr < MAX_VERTEX_ATTRIBS; attr++) {
+ if (((1 << attr) & usedAttributes) == 0)
+ break;
+ }
+ if (attr == MAX_VERTEX_ATTRIBS) {
+ /* too many! XXX record error log */
+ return GL_FALSE;
+ }
+ _mesa_add_attribute(shProg->Attributes, name, size, attr);
+ }
+
+ inst->SrcReg[j].Index = VERT_ATTRIB_GENERIC0 + attr;
+ }
+ }
+ }
+ return GL_TRUE;
+}
+
+
+/**
+ * Scan program instructions to update the program's InputsRead and
+ * OutputsWritten fields.
+ */
+static void
+_slang_update_inputs_outputs(struct gl_program *prog)
+{
+ GLuint i, j;
+
+ prog->InputsRead = 0x0;
+ prog->OutputsWritten = 0x0;
+
+ for (i = 0; i < prog->NumInstructions; i++) {
+ const struct prog_instruction *inst = prog->Instructions + i;
+ const GLuint numSrc = _mesa_num_inst_src_regs(inst->Opcode);
+ for (j = 0; j < numSrc; j++) {
+ if (inst->SrcReg[j].File == PROGRAM_INPUT) {
+ prog->InputsRead |= 1 << inst->SrcReg[j].Index;
+ }
+ }
+ if (inst->DstReg.File == PROGRAM_OUTPUT) {
+ prog->OutputsWritten |= 1 << inst->DstReg.Index;
+ }
+ }
+}
+
+
+/**
+ * Scan a vertex program looking for instances of
+ * (PROGRAM_INPUT, VERT_ATTRIB_GENERIC0 + oldAttrib) and replace with
+ * (PROGRAM_INPUT, VERT_ATTRIB_GENERIC0 + newAttrib).
+ * This is used when the user calls glBindAttribLocation on an already linked
+ * shader program.
+ */
+void
+_slang_remap_attribute(struct gl_program *prog, GLuint oldAttrib, GLuint newAttrib)
+{
+ GLuint i, j;
+
+ assert(prog->Target == GL_VERTEX_PROGRAM_ARB);
+
+ for (i = 0; i < prog->NumInstructions; i++) {
+ struct prog_instruction *inst = prog->Instructions + i;
+ for (j = 0; j < 3; j++) {
+ if (inst->SrcReg[j].File == PROGRAM_INPUT) {
+ if (inst->SrcReg[j].Index == VERT_ATTRIB_GENERIC0 + oldAttrib) {
+ inst->SrcReg[j].Index = VERT_ATTRIB_GENERIC0 + newAttrib;
+ }
+ }
+ }
+ }
+
+ _slang_update_inputs_outputs(prog);
+}
+
+
+
+/**
+ * Scan program for texture instructions, lookup sampler/uniform's value
+ * to determine which texture unit to use.
+ * Also, update the program's TexturesUsed[] array.
+ */
+void
+_slang_resolve_samplers(struct gl_shader_program *shProg,
+ struct gl_program *prog)
+{
+ GLuint i;
+
+ for (i = 0; i < MAX_TEXTURE_IMAGE_UNITS; i++)
+ prog->TexturesUsed[i] = 0;
+
+ for (i = 0; i < prog->NumInstructions; i++) {
+ struct prog_instruction *inst = prog->Instructions + i;
+ if (inst->Opcode == OPCODE_TEX ||
+ inst->Opcode == OPCODE_TXB ||
+ inst->Opcode == OPCODE_TXP) {
+ GLint sampleUnit = (GLint) shProg->Uniforms->ParameterValues[inst->Sampler][0];
+ assert(sampleUnit < MAX_TEXTURE_IMAGE_UNITS);
+ inst->TexSrcUnit = sampleUnit;
+
+ prog->TexturesUsed[inst->TexSrcUnit] |= (1 << inst->TexSrcTarget);
+ }
+ }
+}
+
+
+
/** cast wrapper */
static struct gl_vertex_program *
vertex_program(struct gl_program *prog)
shProg->VertexProgram->Base.Parameters = shProg->Uniforms;
shProg->FragmentProgram->Base.Parameters = shProg->Uniforms;
- slang_resolve_branches(&shProg->VertexProgram->Base);
- slang_resolve_branches(&shProg->FragmentProgram->Base);
+ _slang_resolve_branches(&shProg->VertexProgram->Base);
+ _slang_resolve_branches(&shProg->FragmentProgram->Base);
+
+ _slang_resolve_samplers(shProg, &shProg->VertexProgram->Base);
+ _slang_resolve_samplers(shProg, &shProg->FragmentProgram->Base);
+
+ if (!_slang_resolve_attributes(shProg, &shProg->VertexProgram->Base)) {
+ /*goto cleanup;*/
+ }
+
+ _slang_update_inputs_outputs(&shProg->VertexProgram->Base);
+ _slang_update_inputs_outputs(&shProg->FragmentProgram->Base);
#if 1
printf("************** original fragment program\n");
projects / mesa.git / blobdiff