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android / platform / external / mesa3d / 53a509723ff10ae1494e611de3823f17b7e9f225 / . / src / mesa / main / arbprogram.c
blob: 2c6031096ac7d810cfd90a6367b4e169c2005efa [file] [log] [blame]
/*
* Mesa 3-D graphics library
*
* Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* \file arbprogram.c
* ARB_vertex/fragment_program state management functions.
* \author Brian Paul
*/
#include "main/glheader.h"
#include "main/context.h"
#include "main/hash.h"
#include "main/imports.h"
#include "main/macros.h"
#include "main/mtypes.h"
#include "main/arbprogram.h"
#include "main/shaderapi.h"
#include "program/arbprogparse.h"
#include "program/program.h"
#include "program/prog_print.h"
/**
* Bind a program (make it current)
* \note Called from the GL API dispatcher by both glBindProgramNV
* and glBindProgramARB.
*/
void GLAPIENTRY
_mesa_BindProgramARB(GLenum target, GLuint id)
{
struct gl_program *curProg, *newProg;
GET_CURRENT_CONTEXT(ctx);
/* Error-check target and get curProg */
if (target == GL_VERTEX_PROGRAM_ARB && ctx->Extensions.ARB_vertex_program) {
curProg = ctx->VertexProgram.Current;
}
else if (target == GL_FRAGMENT_PROGRAM_ARB
&& ctx->Extensions.ARB_fragment_program) {
curProg = ctx->FragmentProgram.Current;
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glBindProgramARB(target)");
return;
}
/*
* 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 a default program */
newProg = NULL;
if (target == GL_VERTEX_PROGRAM_ARB)
newProg = ctx->Shared->DefaultVertexProgram;
else
newProg = ctx->Shared->DefaultFragmentProgram;
}
else {
/* Bind a user program */
newProg = _mesa_lookup_program(ctx, id);
if (!newProg || newProg == &_mesa_DummyProgram) {
/* allocate a new program now */
newProg = ctx->Driver.NewProgram(ctx, target, id, true);
if (!newProg) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindProgramARB");
return;
}
_mesa_HashInsert(ctx->Shared->Programs, id, newProg);
}
else if (newProg->Target != target) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glBindProgramARB(target mismatch)");
return;
}
}
/** All error checking is complete now **/
if (curProg->Id == id) {
/* binding same program - no change */
return;
}
/* signal new program (and its new constants) */
FLUSH_VERTICES(ctx, _NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS);
/* bind newProg */
if (target == GL_VERTEX_PROGRAM_ARB) {
_mesa_reference_program(ctx, &ctx->VertexProgram.Current, newProg);
}
else if (target == GL_FRAGMENT_PROGRAM_ARB) {
_mesa_reference_program(ctx, &ctx->FragmentProgram.Current, newProg);
}
/* Never null pointers */
assert(ctx->VertexProgram.Current);
assert(ctx->FragmentProgram.Current);
if (ctx->Driver.BindProgram)
ctx->Driver.BindProgram(ctx, target, newProg);
}
/**
* Delete a list of programs.
* \note Not compiled into display lists.
* \note Called by both glDeleteProgramsNV and glDeleteProgramsARB.
*/
void GLAPIENTRY
_mesa_DeleteProgramsARB(GLsizei n, const GLuint *ids)
{
GLint i;
GET_CURRENT_CONTEXT(ctx);
FLUSH_VERTICES(ctx, 0);
if (n < 0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glDeleteProgramsNV" );
return;
}
for (i = 0; i < n; i++) {
if (ids[i] != 0) {
struct gl_program *prog = _mesa_lookup_program(ctx, ids[i]);
if (prog == &_mesa_DummyProgram) {
_mesa_HashRemove(ctx->Shared->Programs, ids[i]);
}
else if (prog) {
/* Unbind program if necessary */
switch (prog->Target) {
case GL_VERTEX_PROGRAM_ARB:
if (ctx->VertexProgram.Current &&
ctx->VertexProgram.Current->Id == ids[i]) {
/* unbind this currently bound program */
_mesa_BindProgramARB(prog->Target, 0);
}
break;
case GL_FRAGMENT_PROGRAM_ARB:
if (ctx->FragmentProgram.Current &&
ctx->FragmentProgram.Current->Id == ids[i]) {
/* unbind this currently bound program */
_mesa_BindProgramARB(prog->Target, 0);
}
break;
default:
_mesa_problem(ctx, "bad target in glDeleteProgramsNV");
return;
}
/* The ID is immediately available for re-use now */
_mesa_HashRemove(ctx->Shared->Programs, ids[i]);
_mesa_reference_program(ctx, &prog, NULL);
}
}
}
}
/**
* Generate a list of new program identifiers.
* \note Not compiled into display lists.
* \note Called by both glGenProgramsNV and glGenProgramsARB.
*/
void GLAPIENTRY
_mesa_GenProgramsARB(GLsizei n, GLuint *ids)
{
GLuint first;
GLuint i;
GET_CURRENT_CONTEXT(ctx);
if (n < 0) {
_mesa_error(ctx, GL_INVALID_VALUE, "glGenPrograms");
return;
}
if (!ids)
return;
_mesa_HashLockMutex(ctx->Shared->Programs);
first = _mesa_HashFindFreeKeyBlock(ctx->Shared->Programs, n);
/* Insert pointer to dummy program as placeholder */
for (i = 0; i < (GLuint) n; i++) {
_mesa_HashInsertLocked(ctx->Shared->Programs, first + i,
&_mesa_DummyProgram);
}
_mesa_HashUnlockMutex(ctx->Shared->Programs);
/* Return the program names */
for (i = 0; i < (GLuint) n; i++) {
ids[i] = first + i;
}
}
/**
* Determine if id names a vertex or fragment program.
* \note Not compiled into display lists.
* \note Called from both glIsProgramNV and glIsProgramARB.
* \param id is the program identifier
* \return GL_TRUE if id is a program, else GL_FALSE.
*/
GLboolean GLAPIENTRY
_mesa_IsProgramARB(GLuint id)
{
struct gl_program *prog = NULL;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
if (id == 0)
return GL_FALSE;
prog = _mesa_lookup_program(ctx, id);
if (prog && (prog != &_mesa_DummyProgram))
return GL_TRUE;
else
return GL_FALSE;
}
static GLboolean
get_local_param_pointer(struct gl_context *ctx, const char *func,
GLenum target, GLuint index, GLfloat **param)
{
struct gl_program *prog;
GLuint maxParams;
if (target == GL_VERTEX_PROGRAM_ARB
&& ctx->Extensions.ARB_vertex_program) {
prog = ctx->VertexProgram.Current;
maxParams = ctx->Const.Program[MESA_SHADER_VERTEX].MaxLocalParams;
}
else if (target == GL_FRAGMENT_PROGRAM_ARB
&& ctx->Extensions.ARB_fragment_program) {
prog = ctx->FragmentProgram.Current;
maxParams = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxLocalParams;
}
else {
_mesa_error(ctx, GL_INVALID_ENUM,
"%s(target)", func);
return GL_FALSE;
}
if (index >= maxParams) {
_mesa_error(ctx, GL_INVALID_VALUE, "%s(index)", func);
return GL_FALSE;
}
if (!prog->arb.LocalParams) {
prog->arb.LocalParams = rzalloc_array_size(prog, sizeof(float[4]),
maxParams);
if (!prog->arb.LocalParams)
return GL_FALSE;
}
*param = prog->arb.LocalParams[index];
return GL_TRUE;
}
static GLboolean
get_env_param_pointer(struct gl_context *ctx, const char *func,
GLenum target, GLuint index, GLfloat **param)
{
if (target == GL_FRAGMENT_PROGRAM_ARB
&& ctx->Extensions.ARB_fragment_program) {
if (index >= ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxEnvParams) {
_mesa_error(ctx, GL_INVALID_VALUE, "%s(index)", func);
return GL_FALSE;
}
*param = ctx->FragmentProgram.Parameters[index];
return GL_TRUE;
}
else if (target == GL_VERTEX_PROGRAM_ARB &&
ctx->Extensions.ARB_vertex_program) {
if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxEnvParams) {
_mesa_error(ctx, GL_INVALID_VALUE, "%s(index)", func);
return GL_FALSE;
}
*param = ctx->VertexProgram.Parameters[index];
return GL_TRUE;
} else {
_mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", func);
return GL_FALSE;
}
}
void GLAPIENTRY
_mesa_ProgramStringARB(GLenum target, GLenum format, GLsizei len,
const GLvoid *string)
{
struct gl_program *prog;
bool failed;
GET_CURRENT_CONTEXT(ctx);
FLUSH_VERTICES(ctx, _NEW_PROGRAM);
if (!ctx->Extensions.ARB_vertex_program
&& !ctx->Extensions.ARB_fragment_program) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glProgramStringARB()");
return;
}
if (format != GL_PROGRAM_FORMAT_ASCII_ARB) {
_mesa_error(ctx, GL_INVALID_ENUM, "glProgramStringARB(format)");
return;
}
if (target == GL_VERTEX_PROGRAM_ARB && ctx->Extensions.ARB_vertex_program) {
prog = ctx->VertexProgram.Current;
_mesa_parse_arb_vertex_program(ctx, target, string, len, prog);
}
else if (target == GL_FRAGMENT_PROGRAM_ARB
&& ctx->Extensions.ARB_fragment_program) {
prog = ctx->FragmentProgram.Current;
_mesa_parse_arb_fragment_program(ctx, target, string, len, prog);
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glProgramStringARB(target)");
return;
}
failed = ctx->Program.ErrorPos != -1;
if (!failed) {
/* finally, give the program to the driver for translation/checking */
if (!ctx->Driver.ProgramStringNotify(ctx, target, prog)) {
failed = true;
_mesa_error(ctx, GL_INVALID_OPERATION,
"glProgramStringARB(rejected by driver");
}
}
if (ctx->_Shader->Flags & GLSL_DUMP) {
const char *shader_type =
target == GL_FRAGMENT_PROGRAM_ARB ? "fragment" : "vertex";
fprintf(stderr, "ARB_%s_program source for program %d:\n",
shader_type, prog->Id);
fprintf(stderr, "%s\n", (const char *) string);
if (failed) {
fprintf(stderr, "ARB_%s_program %d failed to compile.\n",
shader_type, prog->Id);
} else {
fprintf(stderr, "Mesa IR for ARB_%s_program %d:\n",
shader_type, prog->Id);
_mesa_print_program(prog);
fprintf(stderr, "\n");
}
fflush(stderr);
}
/* Capture vp-*.shader_test/fp-*.shader_test files. */
const char *capture_path = _mesa_get_shader_capture_path();
if (capture_path != NULL) {
FILE *file;
const char *shader_type =
target == GL_FRAGMENT_PROGRAM_ARB ? "fragment" : "vertex";
char *filename =
ralloc_asprintf(NULL, "%s/%cp-%u.shader_test",
capture_path, shader_type[0], prog->Id);
file = fopen(filename, "w");
if (file) {
fprintf(file,
"[require]\nGL_ARB_%s_program\n\n[%s program]\n%s\n",
shader_type, shader_type, (const char *) string);
fclose(file);
} else {
_mesa_warning(ctx, "Failed to open %s", filename);
}
ralloc_free(filename);
}
}
/**
* Set a program env parameter register.
* \note Called from the GL API dispatcher.
*/
void GLAPIENTRY
_mesa_ProgramEnvParameter4dARB(GLenum target, GLuint index,
GLdouble x, GLdouble y, GLdouble z, GLdouble w)
{
_mesa_ProgramEnvParameter4fARB(target, index, (GLfloat) x, (GLfloat) y,
(GLfloat) z, (GLfloat) w);
}
/**
* Set a program env parameter register.
* \note Called from the GL API dispatcher.
*/
void GLAPIENTRY
_mesa_ProgramEnvParameter4dvARB(GLenum target, GLuint index,
const GLdouble *params)
{
_mesa_ProgramEnvParameter4fARB(target, index, (GLfloat) params[0],
(GLfloat) params[1], (GLfloat) params[2],
(GLfloat) params[3]);
}
/**
* Set a program env parameter register.
* \note Called from the GL API dispatcher.
*/
void GLAPIENTRY
_mesa_ProgramEnvParameter4fARB(GLenum target, GLuint index,
GLfloat x, GLfloat y, GLfloat z, GLfloat w)
{
GLfloat *param;
GET_CURRENT_CONTEXT(ctx);
FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
if (get_env_param_pointer(ctx, "glProgramEnvParameter",
target, index, &param)) {
ASSIGN_4V(param, x, y, z, w);
}
}
/**
* Set a program env parameter register.
* \note Called from the GL API dispatcher.
*/
void GLAPIENTRY
_mesa_ProgramEnvParameter4fvARB(GLenum target, GLuint index,
const GLfloat *params)
{
GLfloat *param;
GET_CURRENT_CONTEXT(ctx);
FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
if (get_env_param_pointer(ctx, "glProgramEnvParameter4fv",
target, index, &param)) {
memcpy(param, params, 4 * sizeof(GLfloat));
}
}
void GLAPIENTRY
_mesa_ProgramEnvParameters4fvEXT(GLenum target, GLuint index, GLsizei count,
const GLfloat *params)
{
GET_CURRENT_CONTEXT(ctx);
GLfloat * dest;
FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
if (count <= 0) {
_mesa_error(ctx, GL_INVALID_VALUE, "glProgramEnvParameters4fv(count)");
}
if (target == GL_FRAGMENT_PROGRAM_ARB
&& ctx->Extensions.ARB_fragment_program) {
if ((index + count) > ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxEnvParams) {
_mesa_error(ctx, GL_INVALID_VALUE, "glProgramEnvParameters4fv(index + count)");
return;
}
dest = ctx->FragmentProgram.Parameters[index];
}
else if (target == GL_VERTEX_PROGRAM_ARB
&& ctx->Extensions.ARB_vertex_program) {
if ((index + count) > ctx->Const.Program[MESA_SHADER_VERTEX].MaxEnvParams) {
_mesa_error(ctx, GL_INVALID_VALUE, "glProgramEnvParameters4fv(index + count)");
return;
}
dest = ctx->VertexProgram.Parameters[index];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glProgramEnvParameters4fv(target)");
return;
}
memcpy(dest, params, count * 4 * sizeof(GLfloat));
}
void GLAPIENTRY
_mesa_GetProgramEnvParameterdvARB(GLenum target, GLuint index,
GLdouble *params)
{
GET_CURRENT_CONTEXT(ctx);
GLfloat *fparam;
if (get_env_param_pointer(ctx, "glGetProgramEnvParameterdv",
target, index, &fparam)) {
COPY_4V(params, fparam);
}
}
void GLAPIENTRY
_mesa_GetProgramEnvParameterfvARB(GLenum target, GLuint index,
GLfloat *params)
{
GLfloat *param;
GET_CURRENT_CONTEXT(ctx);
if (get_env_param_pointer(ctx, "glGetProgramEnvParameterfv",
target, index, &param)) {
COPY_4V(params, param);
}
}
void GLAPIENTRY
_mesa_ProgramLocalParameter4fARB(GLenum target, GLuint index,
GLfloat x, GLfloat y, GLfloat z, GLfloat w)
{
GET_CURRENT_CONTEXT(ctx);
GLfloat *param;
FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
if (get_local_param_pointer(ctx, "glProgramLocalParameterARB",
target, index, &param)) {
assert(index < MAX_PROGRAM_LOCAL_PARAMS);
ASSIGN_4V(param, x, y, z, w);
}
}
void GLAPIENTRY
_mesa_ProgramLocalParameter4fvARB(GLenum target, GLuint index,
const GLfloat *params)
{
_mesa_ProgramLocalParameter4fARB(target, index, params[0], params[1],
params[2], params[3]);
}
void GLAPIENTRY
_mesa_ProgramLocalParameters4fvEXT(GLenum target, GLuint index, GLsizei count,
const GLfloat *params)
{
GET_CURRENT_CONTEXT(ctx);
GLfloat *dest;
FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
if (count <= 0) {
_mesa_error(ctx, GL_INVALID_VALUE, "glProgramLocalParameters4fv(count)");
}
if (get_local_param_pointer(ctx, "glProgramLocalParameters4fvEXT",
target, index, &dest)) {
GLuint maxParams = target == GL_FRAGMENT_PROGRAM_ARB ?
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxLocalParams :
ctx->Const.Program[MESA_SHADER_VERTEX].MaxLocalParams;
if ((index + count) > maxParams) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glProgramLocalParameters4fvEXT(index + count)");
return;
}
memcpy(dest, params, count * 4 * sizeof(GLfloat));
}
}
void GLAPIENTRY
_mesa_ProgramLocalParameter4dARB(GLenum target, GLuint index,
GLdouble x, GLdouble y,
GLdouble z, GLdouble w)
{
_mesa_ProgramLocalParameter4fARB(target, index, (GLfloat) x, (GLfloat) y,
(GLfloat) z, (GLfloat) w);
}
void GLAPIENTRY
_mesa_ProgramLocalParameter4dvARB(GLenum target, GLuint index,
const GLdouble *params)
{
_mesa_ProgramLocalParameter4fARB(target, index,
(GLfloat) params[0], (GLfloat) params[1],
(GLfloat) params[2], (GLfloat) params[3]);
}
void GLAPIENTRY
_mesa_GetProgramLocalParameterfvARB(GLenum target, GLuint index,
GLfloat *params)
{
GLfloat *param;
GET_CURRENT_CONTEXT(ctx);
if (get_local_param_pointer(ctx, "glProgramLocalParameters4fvEXT",
target, index, &param)) {
COPY_4V(params, param);
}
}
void GLAPIENTRY
_mesa_GetProgramLocalParameterdvARB(GLenum target, GLuint index,
GLdouble *params)
{
GLfloat *param;
GET_CURRENT_CONTEXT(ctx);
if (get_local_param_pointer(ctx, "glProgramLocalParameters4fvEXT",
target, index, &param)) {
COPY_4V(params, param);
}
}
void GLAPIENTRY
_mesa_GetProgramivARB(GLenum target, GLenum pname, GLint *params)
{
const struct gl_program_constants *limits;
struct gl_program *prog;
GET_CURRENT_CONTEXT(ctx);
if (target == GL_VERTEX_PROGRAM_ARB
&& ctx->Extensions.ARB_vertex_program) {
prog = ctx->VertexProgram.Current;
limits = &ctx->Const.Program[MESA_SHADER_VERTEX];
}
else if (target == GL_FRAGMENT_PROGRAM_ARB
&& ctx->Extensions.ARB_fragment_program) {
prog = ctx->FragmentProgram.Current;
limits = &ctx->Const.Program[MESA_SHADER_FRAGMENT];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramivARB(target)");
return;
}
assert(prog);
assert(limits);
/* Queries supported for both vertex and fragment programs */
switch (pname) {
case GL_PROGRAM_LENGTH_ARB:
*params
= prog->String ? (GLint) strlen((char *) prog->String) : 0;
return;
case GL_PROGRAM_FORMAT_ARB:
*params = prog->Format;
return;
case GL_PROGRAM_BINDING_ARB:
*params = prog->Id;
return;
case GL_PROGRAM_INSTRUCTIONS_ARB:
*params = prog->arb.NumInstructions;
return;
case GL_MAX_PROGRAM_INSTRUCTIONS_ARB:
*params = limits->MaxInstructions;
return;
case GL_PROGRAM_NATIVE_INSTRUCTIONS_ARB:
*params = prog->arb.NumNativeInstructions;
return;
case GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB:
*params = limits->MaxNativeInstructions;
return;
case GL_PROGRAM_TEMPORARIES_ARB:
*params = prog->arb.NumTemporaries;
return;
case GL_MAX_PROGRAM_TEMPORARIES_ARB:
*params = limits->MaxTemps;
return;
case GL_PROGRAM_NATIVE_TEMPORARIES_ARB:
*params = prog->arb.NumNativeTemporaries;
return;
case GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB:
*params = limits->MaxNativeTemps;
return;
case GL_PROGRAM_PARAMETERS_ARB:
*params = prog->arb.NumParameters;
return;
case GL_MAX_PROGRAM_PARAMETERS_ARB:
*params = limits->MaxParameters;
return;
case GL_PROGRAM_NATIVE_PARAMETERS_ARB:
*params = prog->arb.NumNativeParameters;
return;
case GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB:
*params = limits->MaxNativeParameters;
return;
case GL_PROGRAM_ATTRIBS_ARB:
*params = prog->arb.NumAttributes;
return;
case GL_MAX_PROGRAM_ATTRIBS_ARB:
*params = limits->MaxAttribs;
return;
case GL_PROGRAM_NATIVE_ATTRIBS_ARB:
*params = prog->arb.NumNativeAttributes;
return;
case GL_MAX_PROGRAM_NATIVE_ATTRIBS_ARB:
*params = limits->MaxNativeAttribs;
return;
case GL_PROGRAM_ADDRESS_REGISTERS_ARB:
*params = prog->arb.NumAddressRegs;
return;
case GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB:
*params = limits->MaxAddressRegs;
return;
case GL_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB:
*params = prog->arb.NumNativeAddressRegs;
return;
case GL_MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB:
*params = limits->MaxNativeAddressRegs;
return;
case GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB:
*params = limits->MaxLocalParams;
return;
case GL_MAX_PROGRAM_ENV_PARAMETERS_ARB:
*params = limits->MaxEnvParams;
return;
case GL_PROGRAM_UNDER_NATIVE_LIMITS_ARB:
/*
* XXX we may not really need a driver callback here.
* If the number of native instructions, registers, etc. used
* are all below the maximums, we could return true.
* The spec says that even if this query returns true, there's
* no guarantee that the program will run in hardware.
*/
if (prog->Id == 0) {
/* default/null program */
*params = GL_FALSE;
}
else if (ctx->Driver.IsProgramNative) {
/* ask the driver */
*params = ctx->Driver.IsProgramNative( ctx, target, prog );
}
else {
/* probably running in software */
*params = GL_TRUE;
}
return;
default:
/* continue with fragment-program only queries below */
break;
}
/*
* The following apply to fragment programs only (at this time)
*/
if (target == GL_FRAGMENT_PROGRAM_ARB) {
const struct gl_program *fp = ctx->FragmentProgram.Current;
switch (pname) {
case GL_PROGRAM_ALU_INSTRUCTIONS_ARB:
*params = fp->arb.NumNativeAluInstructions;
return;
case GL_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB:
*params = fp->arb.NumAluInstructions;
return;
case GL_PROGRAM_TEX_INSTRUCTIONS_ARB:
*params = fp->arb.NumTexInstructions;
return;
case GL_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB:
*params = fp->arb.NumNativeTexInstructions;
return;
case GL_PROGRAM_TEX_INDIRECTIONS_ARB:
*params = fp->arb.NumTexIndirections;
return;
case GL_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB:
*params = fp->arb.NumNativeTexIndirections;
return;
case GL_MAX_PROGRAM_ALU_INSTRUCTIONS_ARB:
*params = limits->MaxAluInstructions;
return;
case GL_MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB:
*params = limits->MaxNativeAluInstructions;
return;
case GL_MAX_PROGRAM_TEX_INSTRUCTIONS_ARB:
*params = limits->MaxTexInstructions;
return;
case GL_MAX_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB:
*params = limits->MaxNativeTexInstructions;
return;
case GL_MAX_PROGRAM_TEX_INDIRECTIONS_ARB:
*params = limits->MaxTexIndirections;
return;
case GL_MAX_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB:
*params = limits->MaxNativeTexIndirections;
return;
default:
_mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramivARB(pname)");
return;
}
} else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramivARB(pname)");
return;
}
}
void GLAPIENTRY
_mesa_GetProgramStringARB(GLenum target, GLenum pname, GLvoid *string)
{
const struct gl_program *prog;
char *dst = (char *) string;
GET_CURRENT_CONTEXT(ctx);
if (target == GL_VERTEX_PROGRAM_ARB) {
prog = ctx->VertexProgram.Current;
}
else if (target == GL_FRAGMENT_PROGRAM_ARB) {
prog = ctx->FragmentProgram.Current;
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramStringARB(target)");
return;
}
assert(prog);
if (pname != GL_PROGRAM_STRING_ARB) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramStringARB(pname)");
return;
}
if (prog->String)
memcpy(dst, prog->String, strlen((char *) prog->String));
else
*dst = '\0';
}