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Sketch of codegen templates for t_vtx_api.c, not complete
This commit is contained in:
Keith Whitwell
parent
5262dcccc8
commit
c5fb1b7922
1 changed files with 242 additions and 0 deletions
242
src/mesa/tnl/t_vtx_x86_gcc.S
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src/mesa/tnl/t_vtx_x86_gcc.S
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/**************************************************************************
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Copyright 2004 Tungsten Graphics Inc., Cedar Park, Texas.
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All Rights Reserved.
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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on the rights to use, copy, modify, merge, publish, distribute, sub
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license, and/or sell copies of the Software, and to permit persons to whom
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the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice (including the next
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paragraph) shall be included in all copies or substantial portions of the
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Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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ATI, TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
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DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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USE OR OTHER DEALINGS IN THE SOFTWARE.
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**************************************************************************/
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#define GLOBL( x ) \
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.globl x; \
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x:
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.data
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.align 4
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GLOBL ( _x86_Vertex1fv )
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;; v already in eax
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push %edi
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push %esi
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movl (0x0), %edi ; load vbptr
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movl (%eax), %edx ; load v[0]
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movl %edx, (%edi) ; vbptr[0] = v[0]
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addl $4, %edi ; vbptr += 1
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movl $0x0, %ecx ; vertex_size - 1
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movl $0x0, %esi ; tnl->vtx.vertex + 1
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repz
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movsl %ds:(%esi), %es:(%edi)
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movl %edi, (0) ; save vbptr
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movl (0), %edx ; load counter
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pop %esi
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pop %edi
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dec %edx ; counter--
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movl %edx, (0) ; save counter
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je .5 ; if (counter != 0)
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ret ; return
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.5: jmp *0 ; else notify();
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GLOBL ( _x86_Vertex1fv_end )
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GLOBL ( _x86_Vertex2fv )
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;; v already in eax
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push %edi
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push %esi
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movl (0x0), %edi ; load vbptr
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movl (%eax), %edx ; load v[0]
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movl 4(%eax), %ecx ; load v[1]
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movl %edx, (%edi) ; vbptr[0] = v[0]
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movl %ecx, 4(%edi) ; vbptr[1] = v[1]
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addl $8, %edi ; vbptr += 2
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movl $0x0, %ecx ; vertex_size - 2
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movl $0x0, %esi ; tnl->vtx.vertex + 2
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repz
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movsl %ds:(%esi), %es:(%edi)
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movl %edi, (0) ; save vbptr
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movl (0), %edx ; load counter
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pop %esi
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pop %edi
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dec %edx ; counter--
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movl %edx, (0) ; save counter
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je .6 ; if (counter != 0)
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ret ; return
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.6: jmp *0 ; else notify();
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GLOBL ( _x86_Vertex3fv_end )
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GLOBL ( _x86_Vertex3fv )
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;; v already in eax
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push %edi
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push %esi
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movl (0x0), %edi ; load vbptr
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movl (%eax), %edx ; load v[0]
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movl 4(%eax), %ecx ; load v[1]
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movl 8(%eax), %esi ; load v[2]
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movl %edx, (%edi) ; vbptr[0] = v[0]
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movl %ecx, 4(%edi) ; vbptr[1] = v[1]
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movl %esi, 8(%edi) ; vbptr[2] = v[2]
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addl $12, %edi ; vbptr += 3
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movl $0x0, %ecx ; vertex_size - 3
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movl $0x0, %esi ; tnl->vtx.vertex + 3
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repz
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movsl %ds:(%esi), %es:(%edi)
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movl %edi, (0) ; save vbptr
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movl (0), %edx ; load counter
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pop %esi
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pop %edi
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dec %edx ; counter--
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movl %edx, (0) ; save counter
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je .7 ; if (counter != 0)
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ret ; return
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.7: jmp *0 ; else notify();
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GLOBL ( _x86_Vertex3fv_end )
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GLOBL ( _x86_Vertex4fv )
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;; v already in eax
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push %edi
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push %esi
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movl (0x0), %edi ; load vbptr
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movl (%eax), %edx ; load v[0]
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movl 4(%eax), %ecx ; load v[1]
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movl 8(%eax), %esi ; load v[2]
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movl %edx, (%edi) ; vbptr[0] = v[0]
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movl %ecx, 4(%edi) ; vbptr[1] = v[1]
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movl %esi, 8(%edi) ; vbptr[2] = v[2]
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movl 12(%eax), %esi ; load v[3]
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movl %esi, 12(%edi) ; vbptr[3] = v[3]
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addl $16, %edi ; vbptr += 4
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movl $0x0, %ecx ; vertex_size - 4
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movl $0x0, %esi ; tnl->vtx.vertex + 3
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repz
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movsl %ds:(%esi), %es:(%edi)
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movl %edi, (0) ; save vbptr
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movl (0), %edx ; load counter
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pop %esi
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pop %edi
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dec %edx ; counter--
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movl %edx, (0) ; save counter
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je .6 ; if (counter != 0)
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ret ; return
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.6: jmp *0 ; else notify();
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GLOBL ( _x86_Vertex3fv_end )
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/**
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* Generic handlers for vector format data.
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*/
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GLOBL( _x86_Attribute1fv)
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/* 'v' is already in eax */
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movl (%eax), %ecx /* load v[0] */
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movl %ecx, 0 /* store v[0] to current vertex */
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ret
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GLOBL ( _x86_Attribute2fv_end )
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GLOBL( _x86_Attribute2fv)
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/* 'v' is already in eax */
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movl (%eax), %ecx /* load v[0] */
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movl 4(%eax), %eax /* load v[1] */
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movl %ecx, 0 /* store v[0] to current vertex */
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movl %eax, 4 /* store v[1] to current vertex */
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ret
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GLOBL ( _x86_Attribute2fv_end )
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GLOBL( _x86_Attribute3fv)
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/* 'v' is already in eax */
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movl (%eax), %ecx /* load v[0] */
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movl 4(%eax), %edx /* load v[1] */
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movl 8(%eax), %eax /* load v[2] */
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movl %ecx, 0 /* store v[0] to current vertex */
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movl %edx, 4 /* store v[1] to current vertex */
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movl %eax, 8 /* store v[2] to current vertex */
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ret
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GLOBL ( _x86_Attribute3fv_end )
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GLOBL( _x86_Attribute4fv)
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/* 'v' is already in eax */
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movl (%eax), %ecx /* load v[0] */
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movl 4(%eax), %edx /* load v[1] */
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movl %ecx, 0 /* store v[0] to current vertex */
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movl %edx, 4 /* store v[1] to current vertex */
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movl 8(%eax), %ecx /* load v[2] */
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movl 12(%eax), %edx /* load v[3] */
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movl %ecx, 8 /* store v[2] to current vertex */
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movl %edx, 12 /* store v[3] to current vertex */
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ret
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GLOBL ( _x86_Attribute3fv_end )
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;;; In the 1st level dispatch functions, switch to a different
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;;; calling convention -- (const GLfloat *v) in %eax.
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;;;
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;;; As with regular (x86) dispatch, don't create a new stack frame -
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;;; just let the 'ret' in the dispatched function return straight
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;;; back to the original caller.
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;;; Vertex/Normal/Color, etc: the address of the function pointer
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;;; is known at codegen time.
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GLOBL( _x86_dispatch_attrf )
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leal 4(%esp), %eax
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jmp *foo
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GLOBL( _x86_dispatch_attrf_end )
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GLOBL( _x86_dispatch_attrfv )
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movl 4(%esp), %eax
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jmp *foo
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GLOBL( _x86_dispatch_attr1f_end )
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;;; MultiTexcoord: the address of the function pointer must be
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;;; calculated.
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GLOBL( _x86_dispatch_multitexcoordf )
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leal 4(%esp), %eax
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jmp *foo
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GLOBL( _x86_dispatch_multitexcoordf_end )
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GLOBL( _x86_dispatch_multitexcoordfv )
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movl 4(%esp), %eax
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jmp *foo
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GLOBL( _x86_dispatch_multitexcoordfv_end )
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;;; VertexAttrib: the address of the function pointer must be
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;;; calculated.
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GLOBL( _x86_dispatch_vertexattribf )
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leal 4(%esp), %eax
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jmp *foo
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GLOBL( _x86_dispatch_vertexattribf_end )
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GLOBL( _x86_dispatch_vertexattribfv )
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movl 4(%esp), %eax
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jmp *foo
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GLOBL( _x86_dispatch_vertexattribfv_end )
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