diff options
Diffstat (limited to 'src/mesa/tnl/t_vertex_sse.c')
-rw-r--r-- | src/mesa/tnl/t_vertex_sse.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/src/mesa/tnl/t_vertex_sse.c b/src/mesa/tnl/t_vertex_sse.c index 96def25206..76043bd1b5 100644 --- a/src/mesa/tnl/t_vertex_sse.c +++ b/src/mesa/tnl/t_vertex_sse.c @@ -28,10 +28,10 @@ #include "main/glheader.h" #include "main/context.h" #include "main/colormac.h" +#include "main/simple_list.h" +#include "main/enums.h" #include "t_context.h" #include "t_vertex.h" -#include "simple_list.h" -#include "main/enums.h" #if defined(USE_SSE_ASM) @@ -39,6 +39,12 @@ #include "x86/common_x86_asm.h" +/** + * Number of bytes to allocate for generated SSE functions + */ +#define MAX_SSE_CODE_SIZE 1024 + + #define X 0 #define Y 1 #define Z 2 @@ -619,7 +625,10 @@ static GLboolean build_vertex_emit( struct x86_program *p ) x86_pop(&p->func, countEBP); x86_ret(&p->func); + assert(!vtx->emit); vtx->emit = (tnl_emit_func)x86_get_func(&p->func); + + assert( (char *) p->func.csr - (char *) p->func.store <= MAX_SSE_CODE_SIZE ); return GL_TRUE; } @@ -644,7 +653,10 @@ void _tnl_generate_sse_emit( GLcontext *ctx ) p.identity = x86_make_reg(file_XMM, 6); p.chan0 = x86_make_reg(file_XMM, 7); - x86_init_func(&p.func); + if (!x86_init_func_size(&p.func, MAX_SSE_CODE_SIZE)) { + vtx->emit = NULL; + return; + } if (build_vertex_emit(&p)) { _tnl_register_fastpath( vtx, GL_TRUE ); |