diff options
Diffstat (limited to 'src/mesa/glapi/glX_proto_send.py')
| -rw-r--r-- | src/mesa/glapi/glX_proto_send.py | 1016 |
1 files changed, 1016 insertions, 0 deletions
diff --git a/src/mesa/glapi/glX_proto_send.py b/src/mesa/glapi/glX_proto_send.py new file mode 100644 index 00000000000..1b6a5f3890c --- /dev/null +++ b/src/mesa/glapi/glX_proto_send.py @@ -0,0 +1,1016 @@ +#!/usr/bin/env python + +# (C) Copyright IBM Corporation 2004, 2005 +# 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 +# on the rights to use, copy, modify, merge, publish, distribute, sub +# license, 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 (including the next +# paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL +# IBM AND/OR ITS SUPPLIERS 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. +# +# Authors: +# Ian Romanick <[email protected]> +# Jeremy Kolb <[email protected]> + +import gl_XML, glX_XML, glX_proto_common, license +import sys, getopt, copy, string + +def convertStringForXCB(str): + tmp = "" + special = [ "ARB" ] + i = 0 + while i < len(str): + if str[i:i+3] in special: + tmp = '%s_%s' % (tmp, string.lower(str[i:i+3])) + i = i + 2; + elif str[i].isupper(): + tmp = '%s_%s' % (tmp, string.lower(str[i])) + else: + tmp = '%s%s' % (tmp, str[i]) + i += 1 + return tmp + +def hash_pixel_function(func): + """Generate a 'unique' key for a pixel function. The key is based on + the parameters written in the command packet. This includes any + padding that might be added for the original function and the 'NULL + image' flag.""" + + + h = "" + hash_pre = "" + hash_suf = "" + for param in func.parameterIterateGlxSend(): + if param.is_image(): + [dim, junk, junk, junk, junk] = param.get_dimensions() + + d = (dim + 1) & ~1 + hash_pre = "%uD%uD_" % (d - 1, d) + + if param.img_null_flag: + hash_suf = "_NF" + + h += "%u" % (param.size()) + + if func.pad_after(param): + h += "4" + + + n = func.name.replace("%uD" % (dim), "") + n = "__glx_%s_%uD%uD" % (n, d - 1, d) + + h = hash_pre + h + hash_suf + return [h, n] + + +class glx_pixel_function_stub(glX_XML.glx_function): + """Dummy class used to generate pixel "utility" functions that are + shared by multiple dimension image functions. For example, these + objects are used to generate shared functions used to send GLX + protocol for TexImage1D and TexImage2D, TexSubImage1D and + TexSubImage2D, etc.""" + + def __init__(self, func, name): + # The parameters to the utility function are the same as the + # parameters to the real function except for the added "pad" + # parameters. + + self.name = name + self.images = [] + self.parameters = [] + self.parameters_by_name = {} + for _p in func.parameterIterator(): + p = copy.copy(_p) + self.parameters.append(p) + self.parameters_by_name[ p.name ] = p + + + if p.is_image(): + self.images.append(p) + p.height = "height" + + if p.img_yoff == None: + p.img_yoff = "yoffset" + + if p.depth: + if p.extent == None: + p.extent = "extent" + + if p.img_woff == None: + p.img_woff = "woffset" + + + pad_name = func.pad_after(p) + if pad_name: + pad = copy.copy(p) + pad.name = pad_name + self.parameters.append(pad) + self.parameters_by_name[ pad.name ] = pad + + + self.return_type = func.return_type + + self.glx_rop = ~0 + self.glx_sop = 0 + self.glx_vendorpriv = 0 + + self.glx_doubles_in_order = func.glx_doubles_in_order + + self.vectorequiv = None + self.output = None + self.can_be_large = func.can_be_large + self.reply_always_array = func.reply_always_array + self.dimensions_in_reply = func.dimensions_in_reply + self.img_reset = None + + self.server_handcode = 0 + self.client_handcode = 0 + self.ignore = 0 + + self.count_parameter_list = func.count_parameter_list + self.counter_list = func.counter_list + self.offsets_calculated = 0 + return + + +class PrintGlxProtoStubs(glX_proto_common.glx_print_proto): + def __init__(self): + glX_proto_common.glx_print_proto.__init__(self) + self.name = "glX_proto_send.py (from Mesa)" + self.license = license.bsd_license_template % ( "(C) Copyright IBM Corporation 2004, 2005", "IBM") + + + self.last_category = "" + self.generic_sizes = [3, 4, 6, 8, 12, 16, 24, 32] + self.pixel_stubs = {} + self.debug = 0 + return + + def printRealHeader(self): + print '' + print '#include <GL/gl.h>' + print '#include "indirect.h"' + print '#include "glxclient.h"' + print '#include "indirect_size.h"' + print '#include "dispatch.h"' + print '#include "glapi.h"' + print '#include "glthread.h"' + print '#include <GL/glxproto.h>' + print '#ifdef USE_XCB' + print '#include <X11/Xlib-xcb.h>' + print '#include <xcb/xcb.h>' + print '#include <xcb/glx.h>' + print '#endif /* USE_XCB */' + + print '' + print '#define __GLX_PAD(n) (((n) + 3) & ~3)' + print '' + self.printFastcall() + self.printNoinline() + print '' + print '#if !defined __GNUC__ || __GNUC__ < 3' + print '# define __builtin_expect(x, y) x' + print '#endif' + print '' + print '/* If the size and opcode values are known at compile-time, this will, on' + print ' * x86 at least, emit them with a single instruction.' + print ' */' + print '#define emit_header(dest, op, size) \\' + print ' do { union { short s[2]; int i; } temp; \\' + print ' temp.s[0] = (size); temp.s[1] = (op); \\' + print ' *((int *)(dest)) = temp.i; } while(0)' + print '' + print """NOINLINE CARD32 +__glXReadReply( Display *dpy, size_t size, void * dest, GLboolean reply_is_always_array ) +{ + xGLXSingleReply reply; + + (void) _XReply(dpy, (xReply *) & reply, 0, False); + if (size != 0) { + if ((reply.length > 0) || reply_is_always_array) { + const GLint bytes = (reply_is_always_array) + ? (4 * reply.length) : (reply.size * size); + const GLint extra = 4 - (bytes & 3); + + _XRead(dpy, dest, bytes); + if ( extra < 4 ) { + _XEatData(dpy, extra); + } + } + else { + (void) memcpy( dest, &(reply.pad3), size); + } + } + + return reply.retval; +} + +NOINLINE void +__glXReadPixelReply( Display *dpy, __GLXcontext * gc, unsigned max_dim, + GLint width, GLint height, GLint depth, GLenum format, GLenum type, + void * dest, GLboolean dimensions_in_reply ) +{ + xGLXSingleReply reply; + GLint size; + + (void) _XReply(dpy, (xReply *) & reply, 0, False); + + if ( dimensions_in_reply ) { + width = reply.pad3; + height = reply.pad4; + depth = reply.pad5; + + if ((height == 0) || (max_dim < 2)) { height = 1; } + if ((depth == 0) || (max_dim < 3)) { depth = 1; } + } + + size = reply.length * 4; + if (size != 0) { + void * buf = Xmalloc( size ); + + if ( buf == NULL ) { + _XEatData(dpy, size); + __glXSetError(gc, GL_OUT_OF_MEMORY); + } + else { + const GLint extra = 4 - (size & 3); + + _XRead(dpy, buf, size); + if ( extra < 4 ) { + _XEatData(dpy, extra); + } + + __glEmptyImage(gc, 3, width, height, depth, format, type, + buf, dest); + Xfree(buf); + } + } +} + +#define X_GLXSingle 0 + +NOINLINE FASTCALL GLubyte * +__glXSetupSingleRequest( __GLXcontext * gc, GLint sop, GLint cmdlen ) +{ + xGLXSingleReq * req; + Display * const dpy = gc->currentDpy; + + (void) __glXFlushRenderBuffer(gc, gc->pc); + LockDisplay(dpy); + GetReqExtra(GLXSingle, cmdlen, req); + req->reqType = gc->majorOpcode; + req->contextTag = gc->currentContextTag; + req->glxCode = sop; + return (GLubyte *)(req) + sz_xGLXSingleReq; +} + +NOINLINE FASTCALL GLubyte * +__glXSetupVendorRequest( __GLXcontext * gc, GLint code, GLint vop, GLint cmdlen ) +{ + xGLXVendorPrivateReq * req; + Display * const dpy = gc->currentDpy; + + (void) __glXFlushRenderBuffer(gc, gc->pc); + LockDisplay(dpy); + GetReqExtra(GLXVendorPrivate, cmdlen, req); + req->reqType = gc->majorOpcode; + req->glxCode = code; + req->vendorCode = vop; + req->contextTag = gc->currentContextTag; + return (GLubyte *)(req) + sz_xGLXVendorPrivateReq; +} + +const GLuint __glXDefaultPixelStore[9] = { 0, 0, 0, 0, 0, 0, 0, 0, 1 }; + +#define zero (__glXDefaultPixelStore+0) +#define one (__glXDefaultPixelStore+8) +#define default_pixel_store_1D (__glXDefaultPixelStore+4) +#define default_pixel_store_1D_size 20 +#define default_pixel_store_2D (__glXDefaultPixelStore+4) +#define default_pixel_store_2D_size 20 +#define default_pixel_store_3D (__glXDefaultPixelStore+0) +#define default_pixel_store_3D_size 36 +#define default_pixel_store_4D (__glXDefaultPixelStore+0) +#define default_pixel_store_4D_size 36 +""" + + for size in self.generic_sizes: + self.print_generic_function(size) + return + + + def printBody(self, api): + + self.pixel_stubs = {} + generated_stubs = [] + + for func in api.functionIterateGlx(): + if func.client_handcode: continue + + # If the function is a pixel function with a certain + # GLX protocol signature, create a fake stub function + # for it. For example, create a single stub function + # that is used to implement both glTexImage1D and + # glTexImage2D. + + if func.glx_rop != 0: + do_it = 0 + for image in func.get_images(): + if image.img_pad_dimensions: + do_it = 1 + break + + + if do_it: + [h, n] = hash_pixel_function(func) + + + self.pixel_stubs[ func.name ] = n + if h not in generated_stubs: + generated_stubs.append(h) + + fake_func = glx_pixel_function_stub( func, n ) + self.printFunction(fake_func, fake_func.name) + + + self.printFunction(func, func.name) + if func.glx_sop and func.glx_vendorpriv: + self.printFunction(func, func.glx_vendorpriv_names[0]) + + return + + + def printFunction(self, func, name): + footer = '}\n' + if func.glx_rop == ~0: + print 'static %s' % (func.return_type) + print '%s( unsigned opcode, unsigned dim, %s )' % (func.name, func.get_parameter_string()) + print '{' + else: + if func.has_different_protocol(name): + if func.return_type == "void": + ret_string = '' + else: + ret_string = "return " + + func_name = func.static_glx_name(name) + print '#define %s %d' % (func.opcode_vendor_name(name), func.glx_vendorpriv) + print '%s gl%s(%s)' % (func.return_type, func_name, func.get_parameter_string()) + print '{' + print ' __GLXcontext * const gc = __glXGetCurrentContext();' + print '' + print ' if (gc->isDirect) {' + print ' %sCALL_%s(GET_DISPATCH(), (%s));' % (ret_string, func.name, func.get_called_parameter_string()) + print ' } else {' + footer = '}\n}\n' + else: + print '#define %s %d' % (func.opcode_name(), func.opcode_value()) + + print '%s __indirect_gl%s(%s)' % (func.return_type, name, func.get_parameter_string()) + print '{' + + + if func.glx_rop != 0 or func.vectorequiv != None: + if len(func.images): + self.printPixelFunction(func) + else: + self.printRenderFunction(func) + elif func.glx_sop != 0 or func.glx_vendorpriv != 0: + self.printSingleFunction(func, name) + pass + else: + print "/* Missing GLX protocol for %s. */" % (name) + + print footer + return + + + def print_generic_function(self, n): + size = (n + 3) & ~3 + print """static FASTCALL NOINLINE void +generic_%u_byte( GLint rop, const void * ptr ) +{ + __GLXcontext * const gc = __glXGetCurrentContext(); + const GLuint cmdlen = %u; + + emit_header(gc->pc, rop, cmdlen); + (void) memcpy((void *)(gc->pc + 4), ptr, %u); + gc->pc += cmdlen; + if (__builtin_expect(gc->pc > gc->limit, 0)) { (void) __glXFlushRenderBuffer(gc, gc->pc); } +} +""" % (n, size + 4, size) + return + + + def common_emit_one_arg(self, p, pc, adjust, extra_offset): + if p.is_array(): + src_ptr = p.name + else: + src_ptr = "&" + p.name + + if not extra_offset: + print '(void) memcpy((void *)(%s + %u), (void *)(%s), %s);' \ + % (pc, p.offset + adjust, src_ptr, p.size_string() ) + else: + print '(void) memcpy((void *)(%s + %u + %s), (void *)(%s), %s);' \ + % (pc, p.offset + adjust, extra_offset, src_ptr, p.size_string() ) + + def common_emit_args(self, f, pc, adjust, skip_vla): + extra_offset = None + + for p in f.parameterIterateGlxSend( not skip_vla ): + if p.name != f.img_reset: + self.common_emit_one_arg(p, pc, adjust, extra_offset) + + if p.is_variable_length(): + temp = p.size_string() + if extra_offset: + extra_offset += " + %s" % (temp) + else: + extra_offset = temp + + return + + + def pixel_emit_args(self, f, pc, large): + """Emit the arguments for a pixel function. This differs from + common_emit_args in that pixel functions may require padding + be inserted (i.e., for the missing width field for + TexImage1D), and they may also require a 'NULL image' flag + be inserted before the image data.""" + + if large: + adjust = 8 + else: + adjust = 4 + + for param in f.parameterIterateGlxSend(): + if not param.is_image(): + self.common_emit_one_arg(param, pc, adjust, None) + + if f.pad_after(param): + print '(void) memcpy((void *)(%s + %u), zero, 4);' % (pc, (param.offset + param.size()) + adjust) + + else: + [dim, width, height, depth, extent] = param.get_dimensions() + if f.glx_rop == ~0: + dim_str = "dim" + else: + dim_str = str(dim) + + if param.img_null_flag: + if large: + print '(void) memcpy((void *)(%s + %u), zero, 4);' % (pc, (param.offset - 4) + adjust) + else: + print '(void) memcpy((void *)(%s + %u), (void *)((%s == NULL) ? one : zero), 4);' % (pc, (param.offset - 4) + adjust, param.name) + + + pixHeaderPtr = "%s + %u" % (pc, adjust) + pcPtr = "%s + %u" % (pc, param.offset + adjust) + + if not large: + if param.img_send_null: + condition = '(compsize > 0) && (%s != NULL)' % (param.name) + else: + condition = 'compsize > 0' + + print 'if (%s) {' % (condition) + print ' (*gc->fillImage)(gc, %s, %s, %s, %s, %s, %s, %s, %s, %s);' % (dim_str, width, height, depth, param.img_format, param.img_type, param.name, pcPtr, pixHeaderPtr) + print '} else {' + print ' (void) memcpy( %s, default_pixel_store_%uD, default_pixel_store_%uD_size );' % (pixHeaderPtr, dim, dim) + print '}' + else: + print '__glXSendLargeImage(gc, compsize, %s, %s, %s, %s, %s, %s, %s, %s, %s);' % (dim_str, width, height, depth, param.img_format, param.img_type, param.name, pcPtr, pixHeaderPtr) + + return + + + def large_emit_begin(self, f, op_name = None): + if not op_name: + op_name = f.opcode_real_name() + + print 'const GLint op = %s;' % (op_name) + print 'const GLuint cmdlenLarge = cmdlen + 4;' + print 'GLubyte * const pc = __glXFlushRenderBuffer(gc, gc->pc);' + print '(void) memcpy((void *)(pc + 0), (void *)(&cmdlenLarge), 4);' + print '(void) memcpy((void *)(pc + 4), (void *)(&op), 4);' + return + + + def common_func_print_just_start(self, f): + print ' __GLXcontext * const gc = __glXGetCurrentContext();' + + # The only reason that single and vendor private commands need + # a variable called 'dpy' is becuase they use the SyncHandle + # macro. For whatever brain-dead reason, that macro is hard- + # coded to use a variable called 'dpy' instead of taking a + # parameter. + + # FIXME Simplify the logic related to skip_condition and + # FIXME condition_list in this function. Basically, remove + # FIXME skip_condition, and just append the "dpy != NULL" type + # FIXME condition to condition_list from the start. The only + # FIXME reason it's done in this confusing way now is to + # FIXME minimize the diffs in the generated code. + + if not f.glx_rop: + for p in f.parameterIterateOutputs(): + if p.is_image(): + print ' const __GLXattribute * const state = gc->client_state_private;' + break + + print ' Display * const dpy = gc->currentDpy;' + skip_condition = "dpy != NULL" + elif f.can_be_large: + skip_condition = "gc->currentDpy != NULL" + else: + skip_condition = None + + + if f.return_type != 'void': + print ' %s retval = (%s) 0;' % (f.return_type, f.return_type) + + + self.emit_packet_size_calculation(f, 0) + + condition_list = [] + for p in f.parameterIterateCounters(): + condition_list.append( "%s >= 0" % (p.name) ) + + if skip_condition: + condition_list.append( skip_condition ) + + if len( condition_list ) > 0: + if len( condition_list ) > 1: + skip_condition = "(%s)" % (string.join( condition_list, ") && (" )) + else: + skip_condition = "%s" % (condition_list.pop(0)) + + print ' if (__builtin_expect(%s, 1)) {' % (skip_condition) + return 1 + else: + return 0 + + + def printSingleFunction(self, f, name): + self.common_func_print_just_start(f) + + if self.debug: + print ' printf( "Enter %%s...\\n", "gl%s" );' % (f.name) + + if name not in f.glx_vendorpriv_names: + + # XCB specific: + print '#ifdef USE_XCB' + if self.debug: + print ' printf("\\tUsing XCB.\\n");' + print ' xcb_connection_t *c = XGetXCBConnection(dpy);' + print ' (void) __glXFlushRenderBuffer(gc, gc->pc);' + xcb_name = 'xcb_glx%s' % convertStringForXCB(name) + + iparams=[] + extra_iparams = [] + output = None + for p in f.parameterIterator(): + if p.is_output: + output = p + + if p.is_image(): + if p.img_format != "GL_COLOR_INDEX" or p.img_type != "GL_BITMAP": + extra_iparams.append("state->storePack.swapEndian") + else: + extra_iparams.append("0") + + # Hardcode this in. lsb_first param (apparently always GL_FALSE) + # also present in GetPolygonStipple, but taken care of above. + if xcb_name == "xcb_glx_read_pixels": + extra_iparams.append("0") + else: + iparams.append(p.name) + + + xcb_request = '%s(%s)' % (xcb_name, ", ".join(["c", "gc->currentContextTag"] + iparams + extra_iparams)) + + if f.needs_reply(): + print ' %s_reply_t *reply = %s_reply(c, %s, NULL);' % (xcb_name, xcb_name, xcb_request) + if output and f.reply_always_array: + print ' (void)memcpy(%s, %s_data(reply), %s_data_length(reply) * sizeof(%s));' % (output.name, xcb_name, xcb_name, output.get_base_type_string()) + + elif output and not f.reply_always_array: + if not output.is_image(): + print ' if (%s_data_length(reply) == 0)' % (xcb_name) + print ' (void)memcpy(%s, &reply->datum, sizeof(reply->datum));' % (output.name) + print ' else' + print ' (void)memcpy(%s, %s_data(reply), %s_data_length(reply) * sizeof(%s));' % (output.name, xcb_name, xcb_name, output.get_base_type_string()) + + + if f.return_type != 'void': + print ' retval = reply->ret_val;' + print ' free(reply);' + else: + print ' ' + xcb_request + ';' + print '#else' + # End of XCB specific. + + + if f.parameters != []: + pc_decl = "GLubyte const * pc =" + else: + pc_decl = "(void)" + + if name in f.glx_vendorpriv_names: + print ' %s __glXSetupVendorRequest(gc, %s, %s, cmdlen);' % (pc_decl, f.opcode_real_name(), f.opcode_vendor_name(name)) + else: + print ' %s __glXSetupSingleRequest(gc, %s, cmdlen);' % (pc_decl, f.opcode_name()) + + self.common_emit_args(f, "pc", 0, 0) + + images = f.get_images() + + for img in images: + if img.is_output: + o = f.command_fixed_length() - 4 + print ' *(int32_t *)(pc + %u) = 0;' % (o) + if img.img_format != "GL_COLOR_INDEX" or img.img_type != "GL_BITMAP": + print ' * (int8_t *)(pc + %u) = state->storePack.swapEndian;' % (o) + + if f.img_reset: + print ' * (int8_t *)(pc + %u) = %s;' % (o + 1, f.img_reset) + + + return_name = '' + if f.needs_reply(): + if f.return_type != 'void': + return_name = " retval" + return_str = " retval = (%s)" % (f.return_type) + else: + return_str = " (void)" + + got_reply = 0 + + for p in f.parameterIterateOutputs(): + if p.is_image(): + [dim, w, h, d, junk] = p.get_dimensions() + if f.dimensions_in_reply: + print " __glXReadPixelReply(dpy, gc, %u, 0, 0, 0, %s, %s, %s, GL_TRUE);" % (dim, p.img_format, p.img_type, p.name) + else: + print " __glXReadPixelReply(dpy, gc, %u, %s, %s, %s, %s, %s, %s, GL_FALSE);" % (dim, w, h, d, p.img_format, p.img_type, p.name) + + got_reply = 1 + else: + if f.reply_always_array: + aa = "GL_TRUE" + else: + aa = "GL_FALSE" + + # gl_parameter.size() returns the size + # of the entire data item. If the + # item is a fixed-size array, this is + # the size of the whole array. This + # is not what __glXReadReply wants. It + # wants the size of a single data + # element in the reply packet. + # Dividing by the array size (1 for + # non-arrays) gives us this. + + s = p.size() / p.get_element_count() + print " %s __glXReadReply(dpy, %s, %s, %s);" % (return_str, s, p.name, aa) + got_reply = 1 + + + # If a reply wasn't read to fill an output parameter, + # read a NULL reply to get the return value. + + if not got_reply: + print " %s __glXReadReply(dpy, 0, NULL, GL_FALSE);" % (return_str) + + + elif self.debug: + # Only emit the extra glFinish call for functions + # that don't already require a reply from the server. + print ' __indirect_glFinish();' + + if self.debug: + print ' printf( "Exit %%s.\\n", "gl%s" );' % (name) + + + print ' UnlockDisplay(dpy); SyncHandle();' + + if name not in f.glx_vendorpriv_names: + print '#endif /* USE_XCB */' + + print ' }' + print ' return%s;' % (return_name) + return + + + def printPixelFunction(self, f): + if self.pixel_stubs.has_key( f.name ): + # Normally gl_function::get_parameter_string could be + # used. However, this call needs to have the missing + # dimensions (e.g., a fake height value for + # glTexImage1D) added in. + + p_string = "" + for param in f.parameterIterateGlxSend(): + p_string += ", " + param.name + + if param.is_image(): + [dim, junk, junk, junk, junk] = param.get_dimensions() + + if f.pad_after(param): + p_string += ", 1" + + print ' %s(%s, %u%s );' % (self.pixel_stubs[f.name] , f.opcode_name(), dim, p_string) + return + + + if self.common_func_print_just_start(f): + trailer = " }" + else: + trailer = None + + + if f.can_be_large: + print 'if (cmdlen <= gc->maxSmallRenderCommandSize) {' + print ' if ( (gc->pc + cmdlen) > gc->bufEnd ) {' + print ' (void) __glXFlushRenderBuffer(gc, gc->pc);' + print ' }' + + if f.glx_rop == ~0: + opcode = "opcode" + else: + opcode = f.opcode_real_name() + + print 'emit_header(gc->pc, %s, cmdlen);' % (opcode) + + self.pixel_emit_args( f, "gc->pc", 0 ) + print 'gc->pc += cmdlen;' + print 'if (gc->pc > gc->limit) { (void) __glXFlushRenderBuffer(gc, gc->pc); }' + + if f.can_be_large: + print '}' + print 'else {' + + self.large_emit_begin(f, opcode) + self.pixel_emit_args(f, "pc", 1) + + print '}' + + if trailer: print trailer + return + + + def printRenderFunction(self, f): + # There is a class of GL functions that take a single pointer + # as a parameter. This pointer points to a fixed-size chunk + # of data, and the protocol for this functions is very + # regular. Since they are so regular and there are so many + # of them, special case them with generic functions. On + # x86, this saves about 26KB in the libGL.so binary. + + if f.variable_length_parameter() == None and len(f.parameters) == 1: + p = f.parameters[0] + if p.is_pointer(): + cmdlen = f.command_fixed_length() + if cmdlen in self.generic_sizes: + print ' generic_%u_byte( %s, %s );' % (cmdlen, f.opcode_real_name(), p.name) + return + + if self.common_func_print_just_start(f): + trailer = " }" + else: + trailer = None + + if self.debug: + print 'printf( "Enter %%s...\\n", "gl%s" );' % (f.name) + + if f.can_be_large: + print 'if (cmdlen <= gc->maxSmallRenderCommandSize) {' + print ' if ( (gc->pc + cmdlen) > gc->bufEnd ) {' + print ' (void) __glXFlushRenderBuffer(gc, gc->pc);' + print ' }' + + print 'emit_header(gc->pc, %s, cmdlen);' % (f.opcode_real_name()) + + self.common_emit_args(f, "gc->pc", 4, 0) + print 'gc->pc += cmdlen;' + print 'if (__builtin_expect(gc->pc > gc->limit, 0)) { (void) __glXFlushRenderBuffer(gc, gc->pc); }' + + if f.can_be_large: + print '}' + print 'else {' + + self.large_emit_begin(f) + self.common_emit_args(f, "pc", 8, 1) + + p = f.variable_length_parameter() + print ' __glXSendLargeCommand(gc, pc, %u, %s, %s);' % (p.offset + 8, p.name, p.size_string()) + print '}' + + if self.debug: + print '__indirect_glFinish();' + print 'printf( "Exit %%s.\\n", "gl%s" );' % (f.name) + + if trailer: print trailer + return + + +class PrintGlxProtoInit_c(gl_XML.gl_print_base): + def __init__(self): + gl_XML.gl_print_base.__init__(self) + + self.name = "glX_proto_send.py (from Mesa)" + self.license = license.bsd_license_template % ( \ +"""Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. +(C) Copyright IBM Corporation 2004""", "PRECISION INSIGHT, IBM") + return + + + def printRealHeader(self): + print """/** + * \\file indirect_init.c + * Initialize indirect rendering dispatch table. + * + * \\author Kevin E. Martin <[email protected]> + * \\author Brian Paul <[email protected]> + * \\author Ian Romanick <[email protected]> + */ + +#include "indirect_init.h" +#include "indirect.h" +#include "glapi.h" + + +/** + * No-op function used to initialize functions that have no GLX protocol + * support. + */ +static int NoOp(void) +{ + return 0; +} + +/** + * Create and initialize a new GL dispatch table. The table is initialized + * with GLX indirect rendering protocol functions. + */ +__GLapi * __glXNewIndirectAPI( void ) +{ + __GLapi *glAPI; + GLuint entries; + + entries = _glapi_get_dispatch_table_size(); + glAPI = (__GLapi *) Xmalloc(entries * sizeof(void *)); + + /* first, set all entries to point to no-op functions */ + { + int i; + void **dispatch = (void **) glAPI; + for (i = 0; i < entries; i++) { + dispatch[i] = (void *) NoOp; + } + } + + /* now, initialize the entries we understand */""" + + def printRealFooter(self): + print """ + return glAPI; +} +""" + return + + + def printBody(self, api): + for [name, number] in api.categoryIterate(): + if number != None: + preamble = '\n /* %3u. %s */\n\n' % (int(number), name) + else: + preamble = '\n /* %s */\n\n' % (name) + + for func in api.functionIterateByCategory(name): + if func.client_supported_for_indirect(): + print '%s glAPI->%s = __indirect_gl%s;' % (preamble, func.name, func.name) + preamble = '' + + return + + +class PrintGlxProtoInit_h(gl_XML.gl_print_base): + def __init__(self): + gl_XML.gl_print_base.__init__(self) + + self.name = "glX_proto_send.py (from Mesa)" + self.license = license.bsd_license_template % ( \ +"""Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. +(C) Copyright IBM Corporation 2004""", "PRECISION INSIGHT, IBM") + self.header_tag = "_INDIRECT_H_" + + self.last_category = "" + return + + + def printRealHeader(self): + print """/** + * \\file + * Prototypes for indirect rendering functions. + * + * \\author Kevin E. Martin <[email protected]> + * \\author Ian Romanick <[email protected]> + */ +""" + self.printVisibility( "HIDDEN", "hidden" ) + self.printFastcall() + self.printNoinline() + + print """ +#include "glxclient.h" + +extern HIDDEN NOINLINE CARD32 __glXReadReply( Display *dpy, size_t size, + void * dest, GLboolean reply_is_always_array ); + +extern HIDDEN NOINLINE void __glXReadPixelReply( Display *dpy, + __GLXcontext * gc, unsigned max_dim, GLint width, GLint height, + GLint depth, GLenum format, GLenum type, void * dest, + GLboolean dimensions_in_reply ); + +extern HIDDEN NOINLINE FASTCALL GLubyte * __glXSetupSingleRequest( + __GLXcontext * gc, GLint sop, GLint cmdlen ); + +extern HIDDEN NOINLINE FASTCALL GLubyte * __glXSetupVendorRequest( + __GLXcontext * gc, GLint code, GLint vop, GLint cmdlen ); +""" + + + def printBody(self, api): + for func in api.functionIterateGlx(): + params = func.get_parameter_string() + + print 'extern HIDDEN %s __indirect_gl%s(%s);' % (func.return_type, func.name, params) + + for n in func.entry_points: + if func.has_different_protocol(n): + asdf = func.static_glx_name(n) + if asdf not in func.static_entry_points: + print 'extern HIDDEN %s gl%s(%s);' % (func.return_type, asdf, params) + else: + print 'GLAPI %s GLAPIENTRY gl%s(%s);' % (func.return_type, asdf, params) + + break + + + +def show_usage(): + print "Usage: %s [-f input_file_name] [-m output_mode] [-d]" % sys.argv[0] + print " -m output_mode Output mode can be one of 'proto', 'init_c' or 'init_h'." + print " -d Enable extra debug information in the generated code." + sys.exit(1) + + +if __name__ == '__main__': + file_name = "gl_API.xml" + + try: + (args, trail) = getopt.getopt(sys.argv[1:], "f:m:d") + except Exception,e: + show_usage() + + debug = 0 + mode = "proto" + for (arg,val) in args: + if arg == "-f": + file_name = val + elif arg == "-m": + mode = val + elif arg == "-d": + debug = 1 + + if mode == "proto": + printer = PrintGlxProtoStubs() + elif mode == "init_c": + printer = PrintGlxProtoInit_c() + elif mode == "init_h": + printer = PrintGlxProtoInit_h() + else: + show_usage() + + + printer.debug = debug + api = gl_XML.parse_GL_API( file_name, glX_XML.glx_item_factory() ) + + printer.Print( api ) |