--- /dev/null
+/*
+ * Copyright 2003 Tungsten Graphics, inc.
+ * 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
+ * TUNGSTEN GRAPHICS AND/OR THEIR 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:
+ * Keith Whitwell <keithw@tungstengraphics.com>
+ */
+
+#include "glheader.h"
+#include "context.h"
+#include "colormac.h"
+
+#include "t_context.h"
+#include "t_vertex.h"
+
+#include "simple_list.h"
+
+/* A version of code generation for t_clipspace_codegen.c which prints
+ * out 'c' code to implement the generated function. A useful
+ * debugging tool, and in concert with something like tcc or a
+ * library-ized gcc, could do the whole job.
+ */
+
+
+static GLboolean emit( struct tnl_clipspace_codegen *p,
+ const char *fmt,
+ ... )
+{
+ if (p->buf_used < p->buf_size) {
+ va_list ap;
+ va_start( ap, fmt );
+ p->buf_used += vsnprintf( p->buf + p->buf_used,
+ p->buf_size - p->buf_used,
+ fmt, ap );
+ va_end( ap );
+ }
+
+ return p->buf_used < p->buf_size;
+}
+
+
+static GLboolean print_header( struct tnl_clipspace_codegen *p,
+ struct tnl_clipspace *vtx )
+{
+ p->buf_used = 0;
+ p->out_offset = 0;
+
+ return
+ emit(p,
+ "struct tnl_clipspace_attr\n"
+ "{\n"
+ " unsigned int attrib; \n"
+ " unsigned int format;\n"
+ " unsigned int vertoffset; \n"
+ " unsigned int vertattrsize; \n"
+ " char *inputptr;\n"
+ " unsigned int inputstride;\n"
+ " void *insert;\n"
+ " void *emit;\n"
+ " void * extract;\n"
+ " const float *vp; \n"
+ "};\n"
+ "\n"
+ ) &&
+ emit(p,
+ "void emit_vertices( int start, int end, char *dest, \n"
+ " struct tnl_clipspace_attr *a) \n"
+ "{\n"
+ " int i;"
+ " for (i = start ; i < end ; i++, dest += %d) {\n",
+ vtx->vertex_size);
+
+}
+
+static GLboolean print_footer( struct tnl_clipspace_codegen *p )
+{
+ return
+ emit(p,
+ " }\n"
+ "}\n"
+ );
+}
+
+static GLboolean emit_reg( struct tnl_clipspace_codegen *p, GLint reg )
+{
+ int idx = reg & REG_OFFSET_MASK;
+
+ switch (reg & REG_MASK) {
+ case REG_IN: return emit(p, "in[%d]", idx);
+ case REG_VP: return emit(p, "vp[%d]", idx);
+ case REG_TMP: return emit(p, "temp[%d]", idx); /* not used? */
+ case REG_OUT: return emit(p, "out[%d]", idx);
+ }
+
+ return GL_FALSE;
+}
+
+static GLboolean print_mov( struct tnl_clipspace_codegen *p, GLint dest, GLint src )
+{
+ return
+ emit(p, " ") &&
+ emit_reg(p, dest) &&
+ emit(p, " = ") &&
+ emit_reg(p, src) &&
+ emit(p, ";\n");
+}
+
+
+static GLboolean print_const( struct tnl_clipspace_codegen *p,
+ GLint dest, GLfloat c )
+{
+ return
+ emit(p, " ") &&
+ emit_reg(p, dest) &&
+ emit(p, " = %g;\n", c);
+}
+
+static GLboolean print_const_chan( struct tnl_clipspace_codegen *p,
+ GLint dest, GLchan c )
+{
+ return
+ emit(p, " ") &&
+ emit_reg(p, dest) &&
+ emit(p, " = ") &&
+#if CHAN_TYPE == GL_FLOAT
+ emit(p, "%f", c) &&
+#else
+ emit(p, "%d", c) &&
+#endif
+ emit(p, ";\n");
+}
+
+static GLboolean print_const_ubyte( struct tnl_clipspace_codegen *p,
+ GLint dest, GLubyte c )
+{
+ return
+ emit(p, " ") &&
+ emit_reg(p, dest) &&
+ emit(p, " = %x;\n", c);
+}
+
+static GLboolean print_mad( struct tnl_clipspace_codegen *p,
+ GLint dest, GLint src0, GLint src1, GLint src2 )
+{
+ return
+ emit(p, " ") &&
+ emit_reg(p, dest) &&
+ emit(p, " = ") &&
+ emit_reg(p, src0) &&
+ emit(p, " * ") &&
+ emit_reg(p, src1) &&
+ emit(p, " + ") &&
+ emit_reg(p, src2) &&
+ emit(p, ";\n");
+}
+
+static GLboolean print_float_to_ubyte( struct tnl_clipspace_codegen *p,
+ GLint dest, GLint src )
+{
+ return
+ emit(p, " ") &&
+ emit(p, "UNCLAMPED_FLOAT_TO_UBYTE(") &&
+ emit_reg(p, dest) &&
+ emit(p, ", ") &&
+ emit_reg(p, src) &&
+ emit(p, ");\n");
+}
+
+static GLboolean print_float_to_chan( struct tnl_clipspace_codegen *p,
+ GLint dest, GLint src )
+{
+ return
+ emit(p, " ") &&
+ emit(p, "UNCLAMPED_FLOAT_TO_CHAN(") &&
+ emit_reg(p, dest) &&
+ emit(p, ", ") &&
+ emit_reg(p, src) &&
+ emit(p, ");\n");
+}
+
+
+static GLboolean print_attr_header( struct tnl_clipspace_codegen *p,
+ struct tnl_clipspace_attr *a,
+ GLint j,
+ GLenum out_type,
+ GLboolean need_vp)
+{
+ char *out_type_str = "void";
+
+ switch(out_type) {
+ case GL_FLOAT: out_type_str = "float"; break;
+ case GL_UNSIGNED_BYTE: out_type_str = "unsigned char"; break;
+ case GL_UNSIGNED_SHORT: out_type_str = "unsigned short"; break;
+ }
+
+ return
+ emit(p, " {\n") &&
+ (need_vp ? emit(p, " const float *vp = a[%d].vp;\n", j) : 1) &&
+ emit(p, " %s *out = (%s *)(dest + %d);\n",
+ out_type_str, out_type_str, a[j].vertoffset) &&
+ emit(p, " const float *in = (const float *)a[%d].inputptr;\n",
+ j) &&
+ emit(p, " a[%d].inputptr += a[%d].inputstride;\n", j, j);
+}
+
+static GLboolean print_attr_footer( struct tnl_clipspace_codegen *p )
+{
+ return
+ emit(p, " }\n");
+}
+
+static emit_func print_store_func( struct tnl_clipspace_codegen *p )
+{
+ fprintf(stderr, "%s: emitted:\n%s\n", __FUNCTION__, p->buf);
+
+ return 0;
+}
+
+void _tnl_init_c_codegen( struct tnl_clipspace_codegen *p )
+{
+ p->emit_header = print_header;
+ p->emit_footer = print_footer;
+ p->emit_attr_header = print_attr_header;
+ p->emit_attr_footer = print_attr_footer;
+ p->emit_mov = print_mov;
+ p->emit_const = print_const;
+ p->emit_mad = print_mad;
+ p->emit_float_to_chan = print_float_to_chan;
+ p->emit_const_chan = print_const_chan;
+ p->emit_float_to_ubyte = print_float_to_ubyte;
+ p->emit_const_ubyte = print_const_ubyte;
+ p->emit_store_func = print_store_func;
+
+ make_empty_list(&p->codegen_list);
+
+ p->buf_size = 2048;
+ p->buf = MALLOC(p->buf_size);
+}
--- /dev/null
+/*
+ * Copyright 2003 Tungsten Graphics, inc.
+ * 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
+ * TUNGSTEN GRAPHICS AND/OR THEIR 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:
+ * Keith Whitwell <keithw@tungstengraphics.com>
+ */
+
+#include "glheader.h"
+#include "context.h"
+#include "colormac.h"
+
+#include "t_context.h"
+#include "t_vertex.h"
+
+#include "simple_list.h"
+
+/* Another codegen scheme, hopefully portable to a few different
+ * architectures without too much work.
+ */
+
+
+
+
+static GLboolean emit_4f_viewport_4( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mad(p, out(0), vp(0), in(0), vp(12)) &&
+ p->emit_mad(p, out(1), vp(5), in(1), vp(13)) &&
+ p->emit_mad(p, out(2), vp(10), in(2), vp(14)) &&
+ p->emit_mov(p, out(3), in(3));
+}
+
+static GLboolean emit_4f_viewport_3( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mad(p, out(0), vp(0), in(0), vp(12)) &&
+ p->emit_mad(p, out(1), vp(5), in(1), vp(13)) &&
+ p->emit_mad(p, out(2), vp(10), in(2), vp(14)) &&
+ p->emit_const(p, out(3), 1.0);
+}
+
+static GLboolean emit_4f_viewport_2( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mad(p, out(0), vp(0), in(0), vp(12)) &&
+ p->emit_mad(p, out(1), vp(5), in(1), vp(13)) &&
+ p->emit_mov(p, out(2), vp(14)) &&
+ p->emit_const(p, out(3), 1.0);
+}
+
+static GLboolean emit_4f_viewport_1( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mad(p, out(0), vp(0), in(0), vp(12)) &&
+ p->emit_mov(p, out(1), vp(13)) &&
+ p->emit_mov(p, out(2), vp(14)) &&
+ p->emit_const(p, out(3), 1.0);
+}
+
+static GLboolean emit_3f_viewport_3( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mad(p, out(0), vp(0), in(0), vp(12)) &&
+ p->emit_mad(p, out(1), vp(5), in(1), vp(13)) &&
+ p->emit_mad(p, out(2), vp(10), in(2), vp(14));
+}
+
+static GLboolean emit_3f_viewport_2( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mad(p, out(0), vp(0), in(0), vp(12)) &&
+ p->emit_mad(p, out(1), vp(5), in(1), vp(13)) &&
+ p->emit_mov(p, out(2), vp(14));
+}
+
+static GLboolean emit_3f_viewport_1( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mad(p, out(0), vp(0), in(0), vp(12)) &&
+ p->emit_mov(p, out(1), vp(13)) &&
+ p->emit_mov(p, out(2), vp(14));
+}
+
+static GLboolean emit_2f_viewport_2( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mad(p, out(0), vp(0), in(0), vp(12)) &&
+ p->emit_mad(p, out(1), vp(5), in(1), vp(13));
+}
+
+static GLboolean emit_2f_viewport_1( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mad(p, out(0), vp(0), in(0), vp(12));
+}
+
+
+static GLboolean emit_4f_4( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mov(p, out(0), in(0)) &&
+ p->emit_mov(p, out(1), in(1)) &&
+ p->emit_mov(p, out(2), in(2)) &&
+ p->emit_mov(p, out(3), in(3));
+}
+
+static GLboolean emit_4f_3( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mov(p, out(0), in(0)) &&
+ p->emit_mov(p, out(1), in(1)) &&
+ p->emit_mov(p, out(2), in(2)) &&
+ p->emit_const(p, out(3), 1.0);
+}
+
+static GLboolean emit_4f_2( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mov(p, out(0), in(0)) &&
+ p->emit_mov(p, out(1), in(1)) &&
+ p->emit_const(p, out(2), 0.0) &&
+ p->emit_const(p, out(3), 1.0);
+}
+
+static GLboolean emit_4f_1( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mov(p, out(0), in(0)) &&
+ p->emit_const(p, out(1), 0.0) &&
+ p->emit_const(p, out(2), 0.0) &&
+ p->emit_const(p, out(3), 1.0);
+}
+
+static GLboolean emit_3f_xyw_4( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mov(p, out(0), in(0)) &&
+ p->emit_mov(p, out(1), in(1)) &&
+ p->emit_mov(p, out(2), in(3));
+}
+
+static GLboolean emit_3f_xyw_err( struct tnl_clipspace_codegen *p )
+{
+ assert(0);
+ return GL_FALSE;
+}
+
+static GLboolean emit_3f_3( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mov(p, out(0), in(0)) &&
+ p->emit_mov(p, out(1), in(1)) &&
+ p->emit_mov(p, out(2), in(2));
+}
+
+static GLboolean emit_3f_2( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mov(p, out(0), in(0)) &&
+ p->emit_mov(p, out(1), in(1)) &&
+ p->emit_const(p, out(2), 0.0);
+}
+
+static GLboolean emit_3f_1( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mov(p, out(0), in(0)) &&
+ p->emit_const(p, out(1), 0.0) &&
+ p->emit_const(p, out(2), 0.0);
+}
+
+
+static GLboolean emit_2f_2( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mov(p, out(0), in(0)) &&
+ p->emit_mov(p, out(1), in(1));
+}
+
+static GLboolean emit_2f_1( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mov(p, out(0), in(0)) &&
+ p->emit_const(p, out(1), 0.0);
+}
+
+static GLboolean emit_1f_1( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_mov(p, out(0), in(0));
+}
+
+static GLboolean emit_4chan_4f_rgba_4( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_chan(p, out(0), in(0)) &&
+ p->emit_float_to_chan(p, out(1), in(1)) &&
+ p->emit_float_to_chan(p, out(2), in(2)) &&
+ p->emit_float_to_chan(p, out(3), in(3));
+}
+
+static GLboolean emit_4chan_4f_rgba_3( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_chan(p, out(0), in(0)) &&
+ p->emit_float_to_chan(p, out(1), in(1)) &&
+ p->emit_float_to_chan(p, out(2), in(2)) &&
+ p->emit_const_chan(p, out(3), CHAN_MAX);
+}
+
+static GLboolean emit_4chan_4f_rgba_2( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_chan(p, out(0), in(0)) &&
+ p->emit_float_to_chan(p, out(1), in(1)) &&
+ p->emit_const_chan(p, out(2), 0) &&
+ p->emit_const_chan(p, out(3), CHAN_MAX);
+}
+
+static GLboolean emit_4chan_4f_rgba_1( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_chan(p, out(0), in(0)) &&
+ p->emit_const_chan(p, out(1), 0) &&
+ p->emit_const_chan(p, out(2), 0) &&
+ p->emit_const_chan(p, out(3), CHAN_MAX);
+}
+
+static GLboolean emit_4ub_4f_rgba_4( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_ubyte(p, out(0), in(0)) &&
+ p->emit_float_to_ubyte(p, out(1), in(1)) &&
+ p->emit_float_to_ubyte(p, out(2), in(2)) &&
+ p->emit_float_to_ubyte(p, out(3), in(3));
+}
+
+static GLboolean emit_4ub_4f_rgba_3( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_ubyte(p, out(0), in(0)) &&
+ p->emit_float_to_ubyte(p, out(1), in(1)) &&
+ p->emit_float_to_ubyte(p, out(2), in(2)) &&
+ p->emit_const_ubyte(p, out(3), 0xff);
+}
+
+static GLboolean emit_4ub_4f_rgba_2( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_ubyte(p, out(0), in(0)) &&
+ p->emit_float_to_ubyte(p, out(1), in(1)) &&
+ p->emit_const_ubyte(p, out(2), 0) &&
+ p->emit_const_ubyte(p, out(3), 0xff);
+}
+
+static GLboolean emit_4ub_4f_rgba_1( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_ubyte(p, out(0), in(0)) &&
+ p->emit_const_ubyte(p, out(1), 0) &&
+ p->emit_const_ubyte(p, out(2), 0) &&
+ p->emit_const_ubyte(p, out(3), 0xff);
+}
+
+static GLboolean emit_4ub_4f_bgra_4( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_ubyte(p, out(2), in(0)) &&
+ p->emit_float_to_ubyte(p, out(1), in(1)) &&
+ p->emit_float_to_ubyte(p, out(0), in(2)) &&
+ p->emit_float_to_ubyte(p, out(3), in(3));
+}
+
+static GLboolean emit_4ub_4f_bgra_3( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_ubyte(p, out(2), in(0)) &&
+ p->emit_float_to_ubyte(p, out(1), in(1)) &&
+ p->emit_float_to_ubyte(p, out(0), in(2)) &&
+ p->emit_const_ubyte(p, out(3), 0xff);
+}
+
+static GLboolean emit_4ub_4f_bgra_2( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_ubyte(p, out(2), in(0)) &&
+ p->emit_float_to_ubyte(p, out(1), in(1)) &&
+ p->emit_const_ubyte(p, out(0), 0) &&
+ p->emit_const_ubyte(p, out(3), 0xff);
+}
+
+static GLboolean emit_4ub_4f_bgra_1( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_ubyte(p, out(2), in(0)) &&
+ p->emit_const_ubyte(p, out(1), 0) &&
+ p->emit_const_ubyte(p, out(0), 0) &&
+ p->emit_const_ubyte(p, out(3), 0xff);
+}
+
+static GLboolean emit_3ub_3f_rgb_3( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_ubyte(p, out(0), in(0)) &&
+ p->emit_float_to_ubyte(p, out(1), in(1)) &&
+ p->emit_float_to_ubyte(p, out(2), in(2));
+}
+
+static GLboolean emit_3ub_3f_rgb_2( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_ubyte(p, out(0), in(0)) &&
+ p->emit_float_to_ubyte(p, out(1), in(1)) &&
+ p->emit_const_ubyte(p, out(2), 0);
+}
+
+static GLboolean emit_3ub_3f_rgb_1( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_ubyte(p, out(0), in(0)) &&
+ p->emit_const_ubyte(p, out(1), 0) &&
+ p->emit_const_ubyte(p, out(2), 0);
+}
+
+static GLboolean emit_3ub_3f_bgr_3( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_ubyte(p, out(2), in(0)) &&
+ p->emit_float_to_ubyte(p, out(1), in(1)) &&
+ p->emit_float_to_ubyte(p, out(0), in(2));
+}
+
+static GLboolean emit_3ub_3f_bgr_2( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_ubyte(p, out(2), in(0)) &&
+ p->emit_float_to_ubyte(p, out(1), in(1)) &&
+ p->emit_const_ubyte(p, out(0), 0);
+}
+
+static GLboolean emit_3ub_3f_bgr_1( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_ubyte(p, out(2), in(0)) &&
+ p->emit_const_ubyte(p, out(1), 0) &&
+ p->emit_const_ubyte(p, out(0), 0);
+}
+
+
+static GLboolean emit_1ub_1f_1( struct tnl_clipspace_codegen *p )
+{
+ return
+ p->emit_float_to_ubyte(p, out(0), in(0));
+}
+
+
+
+
+static struct {
+ const char *name;
+ GLenum out_type;
+ GLboolean need_vp;
+ GLboolean (*emit[4])( struct tnl_clipspace_codegen * );
+} emit_info[EMIT_MAX] = {
+
+ { "1f", GL_FLOAT, GL_FALSE,
+ { emit_1f_1, emit_1f_1, emit_1f_1, emit_1f_1 } },
+
+ { "2f", GL_FLOAT, GL_FALSE,
+ { emit_2f_1, emit_2f_2, emit_2f_2, emit_2f_2 } },
+
+ { "3f", GL_FLOAT, GL_FALSE,
+ { emit_3f_1, emit_3f_2, emit_3f_3, emit_3f_3 } },
+
+ { "4f", GL_FLOAT, GL_FALSE,
+ { emit_4f_1, emit_4f_2, emit_4f_3, emit_4f_4 } },
+
+ { "2f_viewport", GL_FLOAT, GL_TRUE,
+ { emit_2f_viewport_1, emit_2f_viewport_2, emit_2f_viewport_2,
+ emit_2f_viewport_2 } },
+
+ { "3f_viewport", GL_FLOAT, GL_TRUE,
+ { emit_3f_viewport_1, emit_3f_viewport_2, emit_3f_viewport_3,
+ emit_3f_viewport_3 } },
+
+ { "4f_viewport", GL_FLOAT, GL_TRUE,
+ { emit_4f_viewport_1, emit_4f_viewport_2, emit_4f_viewport_3,
+ emit_4f_viewport_4 } },
+
+ { "3f_xyw", GL_FLOAT, GL_FALSE,
+ { emit_3f_xyw_err, emit_3f_xyw_err, emit_3f_xyw_err,
+ emit_3f_xyw_4 } },
+
+ { "1ub_1f", GL_UNSIGNED_BYTE, GL_FALSE,
+ { emit_1ub_1f_1, emit_1ub_1f_1, emit_1ub_1f_1, emit_1ub_1f_1 } },
+
+ { "3ub_3f_rgb", GL_UNSIGNED_BYTE, GL_FALSE,
+ { emit_3ub_3f_rgb_1, emit_3ub_3f_rgb_2, emit_3ub_3f_rgb_3,
+ emit_3ub_3f_rgb_3 } },
+
+ { "3ub_3f_bgr", GL_UNSIGNED_BYTE, GL_FALSE,
+ { emit_3ub_3f_bgr_1, emit_3ub_3f_bgr_2, emit_3ub_3f_bgr_3,
+ emit_3ub_3f_bgr_3 } },
+
+ { "4ub_4f_rgba", GL_UNSIGNED_BYTE, GL_FALSE,
+ { emit_4ub_4f_rgba_1, emit_4ub_4f_rgba_2, emit_4ub_4f_rgba_3,
+ emit_4ub_4f_rgba_4 } },
+
+ { "4ub_4f_bgra", GL_UNSIGNED_BYTE, GL_FALSE,
+ { emit_4ub_4f_bgra_1, emit_4ub_4f_bgra_2, emit_4ub_4f_bgra_3,
+ emit_4ub_4f_bgra_4 } },
+
+ { "4chan_4f_rgba", CHAN_TYPE, GL_FALSE,
+ { emit_4chan_4f_rgba_1, emit_4chan_4f_rgba_2, emit_4chan_4f_rgba_3,
+ emit_4chan_4f_rgba_4 } },
+
+ { "pad", 0, 0,
+ { 0, 0, 0, 0 } }
+
+};
+
+
+/***********************************************************************
+ * list(attrib, size) --> function
+ *
+ * Because of the dependence of size, this all has to take place after
+ * the pipeline has been run.
+ */
+
+emit_func _tnl_codegen_emit( GLcontext *ctx )
+{
+ struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+ struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
+ struct tnl_clipspace_attr *a = vtx->attr;
+ struct tnl_clipspace_codegen *p = &vtx->codegen;
+ const GLuint count = vtx->attr_count;
+ GLuint j;
+
+ /* Need a faster lookup, or is this linear scan of an MRU list good
+ * enough? MRU chosen based on the guess that consecutive VB's are
+ * likely to be of the same format. A hash of attributes and sizes
+ * might be a better technique.
+ *
+ * With the vtx code now in place, it should be possible to track
+ * changes to the sizes of input arrays (and state, of course) and
+ * only invalidate this function when those sizes have changed.
+ */
+#if 0
+ foreach (l, p->codegen_list) {
+ if (l->attr_count != count)
+ continue;
+
+ /* Assumptions:
+ * a[j].vp will not change for a given attrib
+ * a[j].vertex_offset will not change nothing else has changed.
+ */
+ for (j = 0; j < count; j++)
+ if (a[j].attrib != l->a[j].attrib ||
+ a[j].sz != l->a[j].sz)
+ break;
+
+ if (j == count) {
+ move_to_head(l, p->codegen_list);
+ return l->func;
+ }
+ }
+#endif
+
+ p->emit_header( p, vtx );
+
+ for (j = 0; j < count; j++) {
+ GLuint sz = VB->AttribPtr[a[j].attrib]->size - 1;
+ p->emit_attr_header( p, a, j,
+ emit_info[a[j].format].out_type,
+ emit_info[a[j].format].need_vp );
+
+ if (!emit_info[a[j].format].emit[sz]( p )) {
+ fprintf(stderr, "codegen failed\n");
+ return 0;
+ }
+
+ p->emit_attr_footer( p );
+ }
+
+ p->emit_footer( p );
+
+ return p->emit_store_func( p );
+}
+
projects / mesa.git / commitdiff