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Diffstat (limited to 'src/mesa/drivers/dos/virtual.S')
-rw-r--r--src/mesa/drivers/dos/virtual.S495
1 files changed, 495 insertions, 0 deletions
diff --git a/src/mesa/drivers/dos/virtual.S b/src/mesa/drivers/dos/virtual.S
new file mode 100644
index 0000000..b8b521f
--- /dev/null
+++ b/src/mesa/drivers/dos/virtual.S
@@ -0,0 +1,495 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 4.0
+ *
+ * Copyright (C) 1999 Brian Paul 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
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL 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.
+ */
+
+/*
+ * DOS/DJGPP device driver v1.4 for Mesa
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : dborca@yahoo.com
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#include "x86/assyntax.h"
+
+
+ FILE("virtual.S")
+
+/*
+ * extern void *vl_current_draw_buffer;
+ * extern int vl_current_width, vl_current_bytes;
+ */
+EXTERN _vl_current_draw_buffer
+EXTERN _vl_current_width, _vl_current_bytes
+
+ SEG_TEXT
+ USE32
+
+/* Desc: void v_clear8 (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ ALIGNTEXT32
+ GLOBL _v_clear8
+_v_clear8:
+ MOV_L (REGOFF(4, ESP), EAX)
+ MOV_B (AL, AH)
+ PUSH_W (AX)
+ PUSH_W (AX)
+ POP_L (EAX)
+ jmp _v_clear_common
+
+/* Desc: void v_clear16 (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ ALIGNTEXT32
+ GLOBL _v_clear16
+_v_clear16:
+ MOV_L (REGOFF(4, ESP), EAX)
+ PUSH_W (AX)
+ PUSH_W (AX)
+ POP_L (EAX)
+ jmp _v_clear_common
+
+/* Desc: void v_clear32 (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ ALIGNTEXT32
+ GLOBL _v_clear32
+_v_clear32:
+ MOV_L (REGOFF(4, ESP), EAX)
+ ALIGNTEXT4
+_v_clear_common:
+ MOV_L (CONTENT(_vl_current_bytes), ECX)
+ MOV_L (CONTENT(_vl_current_draw_buffer), EDX)
+ SHR_L (CONST(2), ECX)
+ ALIGNTEXT4
+ 0:
+ MOV_L (EAX, REGIND(EDX))
+ ADD_L (CONST(4), EDX)
+ DEC_L (ECX)
+ jnz 0b
+ RET
+
+/* Desc: void v_clear8_mmx (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ ALIGNTEXT32
+ GLOBL _v_clear8_mmx
+_v_clear8_mmx:
+#ifdef USE_MMX_ASM
+ MOVD (REGOFF(4, ESP), MM0)
+ PUNPCKLBW (MM0, MM0)
+ PUNPCKLWD (MM0, MM0)
+ jmp _v_clear_common_mmx
+#endif
+
+/* Desc: void v_clear16_mmx (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ ALIGNTEXT32
+ GLOBL _v_clear16_mmx
+_v_clear16_mmx:
+#ifdef USE_MMX_ASM
+ MOVD (REGOFF(4, ESP), MM0)
+ PUNPCKLWD (MM0, MM0)
+ jmp _v_clear_common_mmx
+#endif
+
+/* Desc: void v_clear32_mmx (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ ALIGNTEXT32
+ GLOBL _v_clear32_mmx
+_v_clear32_mmx:
+#ifdef USE_MMX_ASM
+ MOVD (REGOFF(4, ESP), MM0)
+ ALIGNTEXT4
+_v_clear_common_mmx:
+ PUNPCKLDQ (MM0, MM0)
+ MOV_L (CONTENT(_vl_current_bytes), ECX)
+ MOV_L (CONTENT(_vl_current_draw_buffer), EDX)
+ SHR_L (CONST(3), ECX)
+ ALIGNTEXT4
+ 0:
+ MOVQ (MM0, REGIND(EDX))
+ ADD_L (CONST(8), EDX)
+ DEC_L (ECX)
+ jnz 0b
+ EMMS
+#endif
+ RET
+
+/* Desc: void v_clear24 (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ ALIGNTEXT32
+ GLOBL _v_clear24
+_v_clear24:
+ MOV_L (CONST(0xaaaaaaab), EAX)
+ MUL_L (CONTENT(_vl_current_bytes))
+ MOV_L (REGOFF(4, ESP), EAX)
+ MOV_L (EDX, ECX)
+ PUSH_L (EBX)
+ MOV_L (CONTENT(_vl_current_draw_buffer), EDX)
+ SHR_L (CONST(1), ECX)
+ MOV_B (REGOFF(10,ESP), BL)
+ ALIGNTEXT4
+ 0:
+ MOV_W (AX, REGIND(EDX))
+ MOV_B (BL, REGOFF(2,EDX))
+ ADD_L (CONST(3), EDX)
+ DEC_L (ECX)
+ jnz 0b
+ POP_L (EBX)
+ RET
+
+/* Desc: void v_clear24_mmx (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ ALIGNTEXT32
+ GLOBL _v_clear24_mmx
+_v_clear24_mmx:
+#ifdef USE_MMX_ASM
+ MOV_L (REGOFF(4, ESP), EAX)
+ MOV_L (EAX, EDX)
+ MOV_L (EAX, ECX)
+ SHL_L (CONST(16), EDX)
+ ROR_L (CONST(8), ECX)
+ MOV_W (CX, DX)
+ ROR_L (CONST(16), ECX)
+ MOV_B (DH, CL)
+ SHL_L (CONST(8), EAX)
+ MOV_B (CH, AL)
+ ROR_L (CONST(8), EAX)
+
+ PUSH_L (EDX)
+ PUSH_L (EAX)
+ MOVQ (REGIND(ESP), MM0)
+ PUSH_L (ECX)
+ MOVQ (REGIND(ESP), MM1)
+ PUSH_L (EDX)
+ MOVQ (REGIND(ESP), MM2)
+
+ MOV_L (CONST(0xaaaaaaab), EAX)
+ MUL_L (CONTENT(_vl_current_bytes))
+ MOV_L (EDX, ECX)
+ MOV_L (CONTENT(_vl_current_draw_buffer), EDX)
+ SHR_L (CONST(4), ECX)
+ ALIGNTEXT4
+ 0:
+ MOVQ (MM0, REGIND(EDX))
+ MOVQ (MM1, REGOFF(8,EDX))
+ MOVQ (MM2, REGOFF(16,EDX))
+ ADD_L (CONST(24), EDX)
+ DEC_L (ECX)
+ jnz 0b
+ EMMS
+ ADD_L (CONST(16), ESP)
+#endif
+ RET
+
+/* Desc: void v_rect8 (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ ALIGNTEXT32
+ GLOBL _v_rect8
+_v_rect8:
+ CLD
+ PUSH_L (ESI)
+ PUSH_L (EDI)
+ MOV_L (REGOFF(28, ESP), EAX)
+ MOV_L (CONTENT(_vl_current_width), ESI)
+ MOV_L (REGOFF(16, ESP), EDI)
+ MOV_B (AL, AH)
+ MOV_L (REGOFF(20, ESP), ECX)
+ IMUL_L (ESI, EDI)
+ MOV_L (REGOFF(24, ESP), EDX)
+ SUB_L (ECX, ESI)
+ ADD_L (REGOFF(12, ESP), EDI)
+ PUSH_W (AX)
+ PUSH_W (AX)
+ PUSH_SR (DS)
+ POP_SR (ES)
+ ADD_L (CONTENT(_vl_current_draw_buffer), EDI)
+ POP_L (EAX)
+ PUSH_L (EBX)
+ MOV_L (ECX, EBX)
+ AND_L (CONST(3), EBX)
+ ALIGNTEXT4
+ 0:
+ PUSH_L (ECX)
+ ALIGNTEXT4
+ 1:
+ SHR_L (CONST(2), ECX)
+ REP STOS_L
+ TEST_L (EBX, EBX)
+ jz 2f
+ MOV_L (EBX, ECX)
+ REP STOS_B
+ ALIGNTEXT4
+ 2:
+ POP_L (ECX)
+ ADD_L (ESI, EDI)
+ DEC_L (EDX)
+ jnz 0b
+ POP_L (EBX)
+ POP_L (EDI)
+ POP_L (ESI)
+ RET
+
+/* Desc: void v_rect16 (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ ALIGNTEXT32
+ GLOBL _v_rect16
+_v_rect16:
+ CLD
+ PUSH_L (ESI)
+ PUSH_L (EDI)
+ MOV_L (REGOFF(28, ESP), EAX)
+ MOV_L (CONTENT(_vl_current_width), ESI)
+ MOV_L (REGOFF(16, ESP), EDI)
+ MOV_L (REGOFF(20, ESP), ECX)
+ IMUL_L (ESI, EDI)
+ MOV_L (REGOFF(24, ESP), EDX)
+ SUB_L (ECX, ESI)
+ ADD_L (REGOFF(12, ESP), EDI)
+ PUSH_W (AX)
+ SHL_L (CONST(1), ESI)
+ PUSH_W (AX)
+ SHL_L (CONST(1), EDI)
+ PUSH_SR (DS)
+ POP_SR (ES)
+ ADD_L (CONTENT(_vl_current_draw_buffer), EDI)
+ POP_L (EAX)
+ ALIGNTEXT4
+ 0:
+ PUSH_L (ECX)
+ ALIGNTEXT4
+ 1:
+ SHR_L (CONST(1), ECX)
+ REP STOS_L
+ jnc 2f
+ STOS_W
+ ALIGNTEXT4
+ 2:
+ POP_L (ECX)
+ ADD_L (ESI, EDI)
+ DEC_L (EDX)
+ jnz 0b
+ POP_L (EDI)
+ POP_L (ESI)
+ RET
+
+/* Desc: void v_rect24 (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ ALIGNTEXT32
+ GLOBL _v_rect24
+_v_rect24:
+ PUSH_L (ESI)
+ PUSH_L (EDI)
+ MOV_L (REGOFF(28, ESP), EAX)
+ MOV_L (CONTENT(_vl_current_width), ESI)
+ MOV_L (REGOFF(16, ESP), EDI)
+ MOV_L (REGOFF(20, ESP), ECX)
+ IMUL_L (ESI, EDI)
+ MOV_L (REGOFF(24, ESP), EDX)
+ SUB_L (ECX, ESI)
+ ADD_L (REGOFF(12, ESP), EDI)
+ LEA_L (REGBIS(ESI, ESI, 2), ESI)
+ PUSH_L (EBX)
+ LEA_L (REGBIS(EDI, EDI, 2), EDI)
+ MOV_L (EAX, EBX)
+ ADD_L (CONTENT(_vl_current_draw_buffer), EDI)
+ SHR_L (CONST(16), EBX)
+ ALIGNTEXT4
+ 0:
+ PUSH_L (ECX)
+ ALIGNTEXT4
+ 1:
+ MOV_W (AX, REGIND(EDI))
+ MOV_B (BL, REGOFF(2,EDI))
+ ADD_L (CONST(3), EDI)
+ DEC_L (ECX)
+ jnz 1b
+ POP_L (ECX)
+ ADD_L (ESI, EDI)
+ DEC_L (EDX)
+ jnz 0b
+ POP_L (EBX)
+ POP_L (EDI)
+ POP_L (ESI)
+ RET
+
+/* Desc: void v_rect32 (int color);
+ *
+ * In : color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ ALIGNTEXT32
+ GLOBL _v_rect32
+_v_rect32:
+ PUSH_L (ESI)
+ PUSH_L (EDI)
+ MOV_L (CONTENT(_vl_current_width), ESI)
+ MOV_L (REGOFF(16, ESP), EDI)
+ MOV_L (REGOFF(20, ESP), ECX)
+ IMUL_L (ESI, EDI)
+ MOV_L (REGOFF(24, ESP), EDX)
+ SUB_L (ECX, ESI)
+ ADD_L (REGOFF(12, ESP), EDI)
+ SHL_L (CONST(2), ESI)
+ SHL_L (CONST(2), EDI)
+ MOV_L (REGOFF(28, ESP), EAX)
+ ADD_L (CONTENT(_vl_current_draw_buffer), EDI)
+ ALIGNTEXT4
+ 0:
+ PUSH_L (ECX)
+ ALIGNTEXT4
+ 1:
+ MOV_L (EAX, REGIND(EDI))
+ ADD_L (CONST(4), EDI)
+ DEC_L (ECX)
+ jnz 1b
+ POP_L (ECX)
+ ADD_L (ESI, EDI)
+ DEC_L (EDX)
+ jnz 0b
+ POP_L (EDI)
+ POP_L (ESI)
+ RET
+
+/* Desc: void v_putpixel8 (unsigned int offset, int color);
+ *
+ * In : offset within buffer, color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ ALIGNTEXT32
+ GLOBL _v_putpixel8
+_v_putpixel8:
+ MOV_L (REGOFF(8, ESP), ECX)
+ MOV_L (REGOFF(4, ESP), EDX)
+ MOV_L (CONTENT(_vl_current_draw_buffer), EAX)
+ MOV_B (CL, REGBI(EAX,EDX))
+ RET
+
+/* Desc: void v_putpixel16 (unsigned int offset, int color);
+ *
+ * In : offset within buffer, color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ ALIGNTEXT32
+ GLOBL _v_putpixel16
+_v_putpixel16:
+ MOV_L (REGOFF(8, ESP), ECX)
+ MOV_L (REGOFF(4, ESP), EDX)
+ MOV_L (CONTENT(_vl_current_draw_buffer), EAX)
+ MOV_W (CX, REGBIS(EAX,EDX,2))
+ RET
+
+/* Desc: void v_putpixel24 (unsigned int offset, int color);
+ *
+ * In : offset within buffer, color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ ALIGNTEXT32
+ GLOBL _v_putpixel24
+_v_putpixel24:
+ MOV_L (REGOFF(4, ESP), EAX)
+ MOV_L (REGOFF(8, ESP), EDX)
+ MOV_L (CONTENT(_vl_current_draw_buffer), ECX)
+ LEA_L (REGBIS(EAX,EAX,2), EAX)
+ MOV_W (DX, REGBI(ECX,EAX))
+ SHR_L (CONST(16), EDX)
+ MOV_B (DL, REGBID(ECX,EAX,2))
+ RET
+
+/* Desc: void v_putpixel32 (unsigned int offset, int color);
+ *
+ * In : offset within buffer, color
+ * Out : -
+ *
+ * Note: uses current draw buffer
+ */
+ ALIGNTEXT32
+ GLOBL _v_putpixel32
+_v_putpixel32:
+ MOV_L (REGOFF(8, ESP), ECX)
+ MOV_L (REGOFF(4, ESP), EDX)
+ MOV_L (CONTENT(_vl_current_draw_buffer), EAX)
+ MOV_L (ECX, REGBIS(EAX,EDX,4))
+ RET
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