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| author | marha <marha@users.sourceforge.net> | 2010-12-29 12:20:21 +0000 |
|---|---|---|
| committer | marha <marha@users.sourceforge.net> | 2010-12-29 12:20:21 +0000 |
| commit | 053f5dfd42ade05252e586a282e34906db10828d (patch) | |
| tree | de215580ce205409a6d810a005c6c5909f3145d1 /mesalib/src/mesa/x86/mmx_blendtmp.h | |
| parent | 04ceb8c4a0cca3d8682f094d1d6faed8f693afb5 (diff) | |
| parent | 807c6931fe683fd844ceec1b023232181e6aae03 (diff) | |
| download | vcxsrv-053f5dfd42ade05252e586a282e34906db10828d.tar.gz vcxsrv-053f5dfd42ade05252e586a282e34906db10828d.tar.bz2 vcxsrv-053f5dfd42ade05252e586a282e34906db10828d.zip | |
svn merge ^/branches/released .
Diffstat (limited to 'mesalib/src/mesa/x86/mmx_blendtmp.h')
| -rw-r--r-- | mesalib/src/mesa/x86/mmx_blendtmp.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/mesalib/src/mesa/x86/mmx_blendtmp.h b/mesalib/src/mesa/x86/mmx_blendtmp.h new file mode 100644 index 000000000..f282c0c21 --- /dev/null +++ b/mesalib/src/mesa/x86/mmx_blendtmp.h @@ -0,0 +1,114 @@ +/*
+ * Written by José Fonseca <j_r_fonseca@yahoo.co.uk>
+ */
+
+
+/*
+ * void _mesa_mmx_blend( struct gl_context *ctx,
+ * GLuint n,
+ * const GLubyte mask[],
+ * GLchan rgba[][4],
+ * CONST GLchan dest[][4] )
+ *
+ */
+ALIGNTEXT16
+GLOBL GLNAME( TAG(_mesa_mmx_blend) )
+HIDDEN( TAG(_mesa_mmx_blend) )
+GLNAME( TAG(_mesa_mmx_blend) ):
+
+ PUSH_L ( EBP )
+ MOV_L ( ESP, EBP )
+ PUSH_L ( ESI )
+ PUSH_L ( EDI )
+ PUSH_L ( EBX )
+
+ MOV_L ( REGOFF(12, EBP), ECX ) /* n */
+ CMP_L ( CONST(0), ECX)
+ JE ( LLTAG(GMB_return) )
+
+ MOV_L ( REGOFF(16, EBP), EBX ) /* mask */
+ MOV_L ( REGOFF(20, EBP), EDI ) /* rgba */
+ MOV_L ( REGOFF(24, EBP), ESI ) /* dest */
+
+ INIT
+
+ TEST_L ( CONST(4), EDI ) /* align rgba on an 8-byte boundary */
+ JZ ( LLTAG(GMB_align_end) )
+
+ CMP_B ( CONST(0), REGIND(EBX) ) /* *mask == 0 */
+ JE ( LLTAG(GMB_align_continue) )
+
+ /* runin */
+#define ONE(x) x
+#define TWO(x)
+ MAIN ( EDI, ESI )
+#undef ONE
+#undef TWO
+
+LLTAG(GMB_align_continue):
+
+ DEC_L ( ECX ) /* n -= 1 */
+ INC_L ( EBX ) /* mask += 1 */
+ ADD_L ( CONST(4), EDI ) /* rgba += 1 */
+ ADD_L ( CONST(4), ESI ) /* dest += 1 */
+
+LLTAG(GMB_align_end):
+
+ CMP_L ( CONST(2), ECX)
+ JB ( LLTAG(GMB_loop_end) )
+
+ALIGNTEXT16
+LLTAG(GMB_loop_begin):
+
+ CMP_W ( CONST(0), REGIND(EBX) ) /* *mask == 0 && *(mask + 1) == 0 */
+ JE ( LLTAG(GMB_loop_continue) )
+
+ /* main loop */
+#define ONE(x)
+#define TWO(x) x
+ MAIN ( EDI, ESI )
+#undef ONE
+#undef TWO
+
+LLTAG(GMB_loop_continue):
+
+ DEC_L ( ECX )
+ DEC_L ( ECX ) /* n -= 2 */
+ ADD_L ( CONST(2), EBX ) /* mask += 2 */
+ ADD_L ( CONST(8), EDI ) /* rgba += 2 */
+ ADD_L ( CONST(8), ESI ) /* dest += 2 */
+ CMP_L ( CONST(2), ECX )
+ JAE ( LLTAG(GMB_loop_begin) )
+
+LLTAG(GMB_loop_end):
+
+ CMP_L ( CONST(1), ECX )
+ JB ( LLTAG(GMB_done) )
+
+ CMP_B ( CONST(0), REGIND(EBX) ) /* *mask == 0 */
+ JE ( LLTAG(GMB_done) )
+
+ /* runout */
+#define ONE(x) x
+#define TWO(x)
+ MAIN ( EDI, ESI )
+#undef ONE
+#undef TWO
+
+LLTAG(GMB_done):
+
+ EMMS
+
+LLTAG(GMB_return):
+
+ POP_L ( EBX )
+ POP_L ( EDI )
+ POP_L ( ESI )
+ MOV_L ( EBP, ESP )
+ POP_L ( EBP )
+ RET
+
+#undef TAG
+#undef LLTAG
+#undef INIT
+#undef MAIN
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