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authorAlan Hourihane <alanh@tungstengraphics.com>2004-04-20 11:13:11 +0000
committerAlan Hourihane <alanh@tungstengraphics.com>2004-04-20 11:13:11 +0000
commit485438e2be08c6d57110101f76dd41a5f484a4ee (patch)
tree1d36515d92b864caddfa1d7bb05a9e235ef218a9 /src/mesa/drivers/windows/gldirect/mesasw
parent319f5fd5ec85b4ca845028e6cdb94cca0a00d3d5 (diff)
add SciTech's GLDirect driver for Windows.
This code is donated to Mesa which allows the usage of a Direct3D layer (DX7, DX8, DX9 or complete software fallback). No build system exists for this code yet, that will come.....
Diffstat (limited to 'src/mesa/drivers/windows/gldirect/mesasw')
-rw-r--r--src/mesa/drivers/windows/gldirect/mesasw/colors.h523
-rw-r--r--src/mesa/drivers/windows/gldirect/mesasw/gld_wgl_mesasw.c1718
2 files changed, 2241 insertions, 0 deletions
diff --git a/src/mesa/drivers/windows/gldirect/mesasw/colors.h b/src/mesa/drivers/windows/gldirect/mesasw/colors.h
new file mode 100644
index 0000000000..17371a96cc
--- /dev/null
+++ b/src/mesa/drivers/windows/gldirect/mesasw/colors.h
@@ -0,0 +1,523 @@
+/* File name : colors.h
+ * Version : 2.3
+ *
+ * Header file for display driver for Mesa 2.3 under
+ * Windows95 and WindowsNT
+ * This file defines macros and global variables needed
+ * for converting color format
+ *
+ * Copyright (C) 1996- Li Wei
+ * Address : Institute of Artificial Intelligence
+ * : & Robotics
+ * : Xi'an Jiaotong University
+ * Email : liwei@aiar.xjtu.edu.cn
+ * Web page : http://sun.aiar.xjtu.edu.cn
+ *
+ * This file and its associations are partially based on the
+ * Windows NT driver for Mesa, written by Mark Leaming
+ * (mark@rsinc.com).
+ */
+
+/* $Log: ddcolors.h 1997/6/14 by Li Wei(liwei@aiar.xjtu.edu.cn)
+ * Macros for pixel format defined
+ */
+
+/*
+ * $Log: colors.h,v $
+ * Revision 1.1 2004/04/20 11:13:11 alanh
+ * add SciTech's GLDirect driver for Windows.
+ *
+ * This code is donated to Mesa which allows the usage of
+ * a Direct3D layer (DX7, DX8, DX9 or complete software fallback).
+ *
+ * No build system exists for this code yet, that will come.....
+ *
+ * Revision 1.1.1.1 1999/08/19 00:55:42 jtg
+ * Imported sources
+ *
+ * Revision 1.2 1999/01/03 03:08:57 brianp
+ * Ted Jump's changes
+ *
+ * Revision 1.1 1999/01/03 03:08:12 brianp
+ * Initial revision
+ *
+ * Revision 2.0.2 1997/4/30 15:58:00 CST by Li Wei(liwei@aiar.xjtu.edu.cn)
+ * Add LUTs need for dithering
+ */
+
+/*
+ * $Log: colors.h,v $
+ * Revision 1.1 2004/04/20 11:13:11 alanh
+ * add SciTech's GLDirect driver for Windows.
+ *
+ * This code is donated to Mesa which allows the usage of
+ * a Direct3D layer (DX7, DX8, DX9 or complete software fallback).
+ *
+ * No build system exists for this code yet, that will come.....
+ *
+ * Revision 1.1.1.1 1999/08/19 00:55:42 jtg
+ * Imported sources
+ *
+ * Revision 1.2 1999/01/03 03:08:57 brianp
+ * Ted Jump's changes
+ *
+ * Revision 1.1 1999/01/03 03:08:12 brianp
+ * Initial revision
+ *
+ * Revision 2.0.1 1997/4/29 15:52:00 CST by Li Wei(liwei@aiar.xjtu.edu.cn)
+ * Add BGR8 Macro
+ */
+
+/*
+ * $Log: colors.h,v $
+ * Revision 1.1 2004/04/20 11:13:11 alanh
+ * add SciTech's GLDirect driver for Windows.
+ *
+ * This code is donated to Mesa which allows the usage of
+ * a Direct3D layer (DX7, DX8, DX9 or complete software fallback).
+ *
+ * No build system exists for this code yet, that will come.....
+ *
+ * Revision 1.1.1.1 1999/08/19 00:55:42 jtg
+ * Imported sources
+ *
+ * Revision 1.2 1999/01/03 03:08:57 brianp
+ * Ted Jump's changes
+ *
+ * Revision 1.1 1999/01/03 03:08:12 brianp
+ * Initial revision
+ *
+ * Revision 2.0 1996/11/15 10:55:00 CST by Li Wei(liwei@aiar.xjtu.edu.cn)
+ * Initial revision
+ */
+/* Values for wmesa->pixelformat: */
+
+#define PF_8A8B8G8R 3 /* 32-bit TrueColor: 8-A, 8-B, 8-G, 8-R */
+#define PF_8R8G8B 4 /* 32-bit TrueColor: 8-R, 8-G, 8-B */
+#define PF_5R6G5B 5 /* 16-bit TrueColor: 5-R, 6-G, 5-B bits */
+#define PF_DITHER8 6 /* Dithered RGB using a lookup table */
+#define PF_LOOKUP 7 /* Undithered RGB using a lookup table */
+#define PF_GRAYSCALE 10 /* Grayscale or StaticGray */
+#define PF_BADFORMAT 11
+#define PF_INDEX8 12
+
+char ColorMap16[] = {
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
+0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,
+0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x03,
+0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,
+0x05,0x05,0x05,0x05,0x05,0x05,0x05,0x05,
+0x06,0x06,0x06,0x06,0x06,0x06,0x06,0x06,
+0x07,0x07,0x07,0x07,0x07,0x07,0x07,0x07,
+0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,
+0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x09,
+0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,
+0x0B,0x0B,0x0B,0x0B,0x0B,0x0B,0x0B,0x0B,
+0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,
+0x0D,0x0D,0x0D,0x0D,0x0D,0x0D,0x0D,0x0D,
+0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,
+0x0F,0x0F,0x0F,0x0F,0x0F,0x0F,0x0F,0x0F,
+0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,
+0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,
+0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,
+0x13,0x13,0x13,0x13,0x13,0x13,0x13,0x13,
+0x14,0x14,0x14,0x14,0x14,0x14,0x14,0x14,
+0x15,0x15,0x15,0x15,0x15,0x15,0x15,0x15,
+0x16,0x16,0x16,0x16,0x16,0x16,0x16,0x16,
+0x17,0x17,0x17,0x17,0x17,0x17,0x17,0x17,
+0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,
+0x19,0x19,0x19,0x19,0x19,0x19,0x19,0x19,
+0x1A,0x1A,0x1A,0x1A,0x1A,0x1A,0x1A,0x1A,
+0x1B,0x1B,0x1B,0x1B,0x1B,0x1B,0x1B,0x1B,
+0x1C,0x1C,0x1C,0x1C,0x1C,0x1C,0x1C,0x1C,
+0x1D,0x1D,0x1D,0x1D,0x1D,0x1D,0x1D,0x1D,
+0x1E,0x1E,0x1E,0x1E,0x1E,0x1E,0x1E,0x1E,
+0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F};
+
+#define BGR8(r,g,b) (unsigned)(((BYTE)(b & 0xc0 | (g & 0xe0)>>2 | (r & 0xe0)>>5)))
+#ifdef DDRAW
+#define BGR16(r,g,b) ((WORD)(((BYTE)(ColorMap16[b]) | ((BYTE)(g&0xfc) << 3)) | (((WORD)(BYTE)(ColorMap16[r])) << 11)))
+#else
+#define BGR16(r,g,b) ((WORD)(((BYTE)(ColorMap16[b]) | ((BYTE)(ColorMap16[g]) << 5)) | (((WORD)(BYTE)(ColorMap16[r])) << 10)))
+#endif
+#define BGR24(r,g,b) (unsigned long)(((DWORD)(((BYTE)(b)|((WORD)((BYTE)(g))<<8))|(((DWORD)(BYTE)(r))<<16))) << 8)
+#define BGR32(r,g,b) (unsigned long)((DWORD)(((BYTE)(b)|((WORD)((BYTE)(g))<<8))|(((DWORD)(BYTE)(r))<<16)))
+
+
+
+/*
+ * If pixelformat==PF_8A8B8G8R:
+ */
+#define PACK_8A8B8G8R( R, G, B, A ) \
+ ( ((A) << 24) | ((B) << 16) | ((G) << 8) | (R) )
+
+
+/*
+ * If pixelformat==PF_8R8G8B:
+ */
+#define PACK_8R8G8B( R, G, B) ( ((R) << 16) | ((G) << 8) | (B) )
+
+
+/*
+ * If pixelformat==PF_5R6G5B:
+ */
+
+
+#ifdef DDRAW
+#define PACK_5R6G5B( R, G, B) ((WORD)(((BYTE)(ColorMap16[B]) | ((BYTE)(G&0xfc) << 3)) | (((WORD)(BYTE)(ColorMap16[R])) << 11)))
+#else
+#define PACK_5R6G5B( R, G, B) ((WORD)(((BYTE)(ColorMap16[B]) | ((BYTE)(ColorMap16[G]) << 5)) | (((WORD)(BYTE)(ColorMap16[R])) << 10)))
+#endif
+/*----------------------------------------------------------------------------
+
+Division lookup tables. These tables compute 0-255 divided by 51 and
+modulo 51. These tables could approximate gamma correction.
+
+*/
+
+char unsigned const aDividedBy51Rounded[256] =
+{
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+};
+
+char unsigned const aDividedBy51[256] =
+{
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5,
+};
+
+char unsigned const aModulo51[256] =
+{
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+ 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37,
+ 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 0, 1, 2, 3, 4, 5, 6,
+ 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
+ 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43,
+ 44, 45, 46, 47, 48, 49, 50, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
+ 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
+ 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48,
+ 49, 50, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
+ 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
+ 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 0, 1, 2, 3,
+ 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22,
+ 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+ 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 0,
+};
+
+/*----------------------------------------------------------------------------
+
+Multiplication LUTs. These compute 0-5 times 6 and 36.
+
+*/
+
+char unsigned const aTimes6[6] =
+{
+ 0, 6, 12, 18, 24, 30
+};
+
+char unsigned const aTimes36[6] =
+{
+ 0, 36, 72, 108, 144, 180
+};
+
+
+/*----------------------------------------------------------------------------
+
+Dither matrices for 8 bit to 2.6 bit halftones.
+
+*/
+
+char unsigned const aHalftone16x16[256] =
+{
+ 0, 44, 9, 41, 3, 46, 12, 43, 1, 44, 10, 41, 3, 46, 12, 43,
+ 34, 16, 25, 19, 37, 18, 28, 21, 35, 16, 26, 19, 37, 18, 28, 21,
+ 38, 6, 47, 3, 40, 9, 50, 6, 38, 7, 47, 4, 40, 9, 49, 6,
+ 22, 28, 13, 31, 25, 31, 15, 34, 22, 29, 13, 32, 24, 31, 15, 34,
+ 2, 46, 12, 43, 1, 45, 10, 42, 2, 45, 11, 42, 1, 45, 11, 42,
+ 37, 18, 27, 21, 35, 17, 26, 20, 36, 17, 27, 20, 36, 17, 26, 20,
+ 40, 8, 49, 5, 38, 7, 48, 4, 39, 8, 48, 5, 39, 7, 48, 4,
+ 24, 30, 15, 33, 23, 29, 13, 32, 23, 30, 14, 33, 23, 29, 14, 32,
+ 2, 46, 12, 43, 0, 44, 10, 41, 3, 47, 12, 44, 0, 44, 10, 41,
+ 37, 18, 27, 21, 35, 16, 25, 19, 37, 19, 28, 22, 35, 16, 25, 19,
+ 40, 9, 49, 5, 38, 7, 47, 4, 40, 9, 50, 6, 38, 6, 47, 3,
+ 24, 30, 15, 34, 22, 29, 13, 32, 25, 31, 15, 34, 22, 28, 13, 31,
+ 1, 45, 11, 42, 2, 46, 11, 42, 1, 45, 10, 41, 2, 46, 11, 43,
+ 36, 17, 26, 20, 36, 17, 27, 21, 35, 16, 26, 20, 36, 18, 27, 21,
+ 39, 8, 48, 4, 39, 8, 49, 5, 38, 7, 48, 4, 39, 8, 49, 5,
+ 23, 29, 14, 33, 24, 30, 14, 33, 23, 29, 13, 32, 24, 30, 14, 33,
+};
+
+char unsigned const aHalftone8x8[64] =
+{
+ 0, 38, 9, 47, 2, 40, 11, 50,
+ 25, 12, 35, 22, 27, 15, 37, 24,
+ 6, 44, 3, 41, 8, 47, 5, 43,
+ 31, 19, 28, 15, 34, 21, 31, 18,
+ 1, 39, 11, 49, 0, 39, 10, 48,
+ 27, 14, 36, 23, 26, 13, 35, 23,
+ 7, 46, 4, 43, 7, 45, 3, 42,
+ 33, 20, 30, 17, 32, 19, 29, 16,
+};
+
+char unsigned const aHalftone4x4_1[16] =
+{
+ 0, 25, 6, 31,
+ 38, 12, 44, 19,
+ 9, 35, 3, 28,
+ 47, 22, 41, 15
+};
+
+char unsigned const aHalftone4x4_2[16] =
+{
+ 41, 3, 9, 28,
+ 35, 15, 22, 47,
+ 6, 25, 38, 0,
+ 19, 44, 31, 12
+};
+
+/***************************************************************************
+ aWinGHalftoneTranslation
+
+ Translates a 2.6 bit-per-pixel halftoned representation into the
+ slightly rearranged WinG Halftone Palette.
+*/
+
+char unsigned const aWinGHalftoneTranslation[216] =
+{
+ 0,
+ 29,
+ 30,
+ 31,
+ 32,
+ 249,
+ 33,
+ 34,
+ 35,
+ 36,
+ 37,
+ 38,
+ 39,
+ 40,
+ 41,
+ 42,
+ 43,
+ 44,
+ 45,
+ 46,
+ 47,
+ 48,
+ 49,
+ 50,
+ 51,
+ 52,
+ 53,
+ 54,
+ 55,
+ 56,
+ 250,
+ 250,
+ 57,
+ 58,
+ 59,
+ 251,
+ 60,
+ 61,
+ 62,
+ 63,
+ 64,
+ 65,
+ 66,
+ 67,
+ 68,
+ 69,
+ 70,
+ 71,
+ 72,
+ 73,
+ 74,
+ 75,
+ 76,
+ 77,
+ 78,
+ 79,
+ 80,
+ 81,
+ 82,
+ 83,
+ 84,
+ 85,
+ 86,
+ 87,
+ 88,
+ 89,
+ 250,
+ 90,
+ 91,
+ 92,
+ 93,
+ 94,
+ 95,
+ 96,
+ 97,
+ 98,
+ 99,
+ 100,
+ 101,
+ 102,
+ 103,
+ 104,
+ 105,
+ 106,
+ 107,
+ 108,
+ 109,
+ 110,
+ 111,
+ 227,
+ 112,
+ 113,
+ 114,
+ 115,
+ 116,
+ 117,
+ 118,
+ 119,
+ 151,
+ 120,
+ 121,
+ 122,
+ 123,
+ 124,
+ 228,
+ 125,
+ 126,
+ 229,
+ 133,
+ 162,
+ 135,
+ 131,
+ 132,
+ 137,
+ 166,
+ 134,
+ 140,
+ 130,
+ 136,
+ 143,
+ 138,
+ 139,
+ 174,
+ 141,
+ 142,
+ 177,
+ 129,
+ 144,
+ 145,
+ 146,
+ 147,
+ 148,
+ 149,
+ 150,
+ 157,
+ 152,
+ 153,
+ 154,
+ 155,
+ 156,
+ 192,
+ 158,
+ 159,
+ 160,
+ 161,
+ 196,
+ 163,
+ 164,
+ 165,
+ 127,
+ 199,
+ 167,
+ 168,
+ 169,
+ 170,
+ 171,
+ 172,
+ 173,
+ 207,
+ 175,
+ 176,
+ 210,
+ 178,
+ 179,
+ 180,
+ 181,
+ 182,
+ 183,
+ 184,
+ 185,
+ 186,
+ 187,
+ 188,
+ 189,
+ 190,
+ 191,
+ 224,
+ 193,
+ 194,
+ 195,
+ 252,
+ 252,
+ 197,
+ 198,
+ 128,
+ 253,
+ 252,
+ 200,
+ 201,
+ 202,
+ 203,
+ 204,
+ 205,
+ 206,
+ 230,
+ 208,
+ 209,
+ 231,
+ 211,
+ 212,
+ 213,
+ 214,
+ 215,
+ 216,
+ 217,
+ 218,
+ 219,
+ 220,
+ 221,
+ 222,
+ 254,
+ 223,
+ 232,
+ 225,
+ 226,
+ 255,
+}; \ No newline at end of file
diff --git a/src/mesa/drivers/windows/gldirect/mesasw/gld_wgl_mesasw.c b/src/mesa/drivers/windows/gldirect/mesasw/gld_wgl_mesasw.c
new file mode 100644
index 0000000000..ed58e35301
--- /dev/null
+++ b/src/mesa/drivers/windows/gldirect/mesasw/gld_wgl_mesasw.c
@@ -0,0 +1,1718 @@
+/****************************************************************************
+*
+* Mesa 3-D graphics library
+* Direct3D Driver Interface
+*
+* ========================================================================
+*
+* Copyright (C) 1991-2004 SciTech Software, 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
+* 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
+* SCITECH SOFTWARE INC 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.
+*
+* ======================================================================
+*
+* Language: ANSI C
+* Environment: Windows 9x/2000/XP/XBox (Win32)
+*
+* Description: Mesa Software WGL (WindowsGL)
+*
+****************************************************************************/
+
+#include <windows.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/gl.h>
+#include <GL/glext.h>
+
+#include "glheader.h"
+#include "colors.h"
+#include "context.h"
+#include "colormac.h"
+#include "dd.h"
+#include "depth.h"
+#include "extensions.h"
+#include "macros.h"
+#include "matrix.h"
+// #include "mem.h"
+#include "mmath.h"
+#include "mtypes.h"
+#include "texformat.h"
+#include "texstore.h"
+#include "array_cache/acache.h"
+#include "swrast/swrast.h"
+#include "swrast_setup/swrast_setup.h"
+#include "swrast/s_context.h"
+#include "swrast/s_depth.h"
+#include "swrast/s_lines.h"
+#include "swrast/s_triangle.h"
+#include "swrast/s_trispan.h"
+#include "tnl/tnl.h"
+#include "tnl/t_context.h"
+#include "tnl/t_pipeline.h"
+
+#include "dglcontext.h"
+#include "gld_driver.h"
+
+//---------------------------------------------------------------------------
+//---------------------------------------------------------------------------
+
+DGL_pixelFormat pfTemplateMesaSW =
+{
+ {
+ sizeof(PIXELFORMATDESCRIPTOR), // Size of the data structure
+ 1, // Structure version - should be 1
+ // Flags:
+ PFD_DRAW_TO_WINDOW | // The buffer can draw to a window or device surface.
+ PFD_DRAW_TO_BITMAP | // The buffer can draw to a bitmap. (DaveM)
+ PFD_SUPPORT_GDI | // The buffer supports GDI drawing. (DaveM)
+ PFD_SUPPORT_OPENGL | // The buffer supports OpenGL drawing.
+ PFD_DOUBLEBUFFER | // The buffer is double-buffered.
+ 0, // Placeholder for easy commenting of above flags
+ PFD_TYPE_RGBA, // Pixel type RGBA.
+ 32, // Total colour bitplanes (excluding alpha bitplanes)
+ 8, 0, // Red bits, shift
+ 8, 8, // Green bits, shift
+ 8, 16, // Blue bits, shift
+ 8, 24, // Alpha bits, shift (destination alpha)
+ 64, // Accumulator bits (total)
+ 16, 16, 16, 16, // Accumulator bits: Red, Green, Blue, Alpha
+ 16, // Depth bits
+ 8, // Stencil bits
+ 0, // Number of auxiliary buffers
+ 0, // Layer type
+ 0, // Specifies the number of overlay and underlay planes.
+ 0, // Layer mask
+ 0, // Specifies the transparent color or index of an underlay plane.
+ 0 // Damage mask
+ },
+ 0, // Unused
+};
+
+//---------------------------------------------------------------------------
+// Extensions
+//---------------------------------------------------------------------------
+
+typedef struct {
+ PROC proc;
+ char *name;
+} GLD_extension;
+
+static GLD_extension GLD_extList[] = {
+#ifdef GL_EXT_polygon_offset
+ { (PROC)glPolygonOffsetEXT, "glPolygonOffsetEXT" },
+#endif
+ { (PROC)glBlendEquationEXT, "glBlendEquationEXT" },
+ { (PROC)glBlendColorEXT, "glBlendColorExt" },
+ { (PROC)glVertexPointerEXT, "glVertexPointerEXT" },
+ { (PROC)glNormalPointerEXT, "glNormalPointerEXT" },
+ { (PROC)glColorPointerEXT, "glColorPointerEXT" },
+ { (PROC)glIndexPointerEXT, "glIndexPointerEXT" },
+ { (PROC)glTexCoordPointerEXT, "glTexCoordPointer" },
+ { (PROC)glEdgeFlagPointerEXT, "glEdgeFlagPointerEXT" },
+ { (PROC)glGetPointervEXT, "glGetPointervEXT" },
+ { (PROC)glArrayElementEXT, "glArrayElementEXT" },
+ { (PROC)glDrawArraysEXT, "glDrawArrayEXT" },
+ { (PROC)glAreTexturesResidentEXT, "glAreTexturesResidentEXT" },
+ { (PROC)glBindTextureEXT, "glBindTextureEXT" },
+ { (PROC)glDeleteTexturesEXT, "glDeleteTexturesEXT" },
+ { (PROC)glGenTexturesEXT, "glGenTexturesEXT" },
+ { (PROC)glIsTextureEXT, "glIsTextureEXT" },
+ { (PROC)glPrioritizeTexturesEXT, "glPrioritizeTexturesEXT" },
+ { (PROC)glCopyTexSubImage3DEXT, "glCopyTexSubImage3DEXT" },
+ { (PROC)glTexImage3DEXT, "glTexImage3DEXT" },
+ { (PROC)glTexSubImage3DEXT, "glTexSubImage3DEXT" },
+ { (PROC)glPointParameterfEXT, "glPointParameterfEXT" },
+ { (PROC)glPointParameterfvEXT, "glPointParameterfvEXT" },
+ { (PROC)glLockArraysEXT, "glLockArraysEXT" },
+ { (PROC)glUnlockArraysEXT, "glUnlockArraysEXT" },
+ { NULL, "\0" }
+};
+
+//---------------------------------------------------------------------------
+// WMesa Internal Functions
+//---------------------------------------------------------------------------
+
+#define PAGE_FILE 0xffffffff
+
+#define REDBITS 0x03
+#define REDSHIFT 0x00
+#define GREENBITS 0x03
+#define GREENSHIFT 0x03
+#define BLUEBITS 0x02
+#define BLUESHIFT 0x06
+
+typedef struct _dibSection {
+ HDC hDC;
+ HANDLE hFileMap;
+ BOOL fFlushed;
+ LPVOID base;
+} WMDIBSECTION, *PWMDIBSECTION;
+
+typedef struct wmesa_context {
+ HWND Window;
+ HDC hDC;
+ HPALETTE hPalette;
+ HPALETTE hOldPalette;
+ HPEN hPen;
+ HPEN hOldPen;
+ HCURSOR hOldCursor;
+ COLORREF crColor;
+ // 3D projection stuff
+ RECT drawRect;
+ UINT uiDIBoffset;
+ // OpenGL stuff
+ HPALETTE hGLPalette;
+ GLuint width;
+ GLuint height;
+ GLuint ScanWidth;
+ GLboolean db_flag; //* double buffered?
+ GLboolean rgb_flag; //* RGB mode?
+ GLboolean dither_flag; //* use dither when 256 color mode for RGB?
+ GLuint depth; //* bits per pixel (1, 8, 24, etc)
+ ULONG pixel; // current color index or RGBA pixel value
+ ULONG clearpixel; //* pixel for clearing the color buffers
+ PBYTE ScreenMem; // WinG memory
+ BITMAPINFO *IndexFormat;
+ HPALETTE hPal; // Current Palette
+ HPALETTE hPalHalfTone;
+
+
+ WMDIBSECTION dib;
+ BITMAPINFO bmi;
+ HBITMAP hbmDIB;
+ HBITMAP hOldBitmap;
+ HBITMAP Old_Compat_BM;
+ HBITMAP Compat_BM; // Bitmap for double buffering
+ PBYTE pbPixels;
+ int nColors;
+ BYTE cColorBits;
+ int pixelformat;
+
+ RECT rectOffScreen;
+ RECT rectSurface;
+// HWND hwnd;
+ DWORD pitch;
+ PBYTE addrOffScreen;
+
+ // We always double-buffer, for performance reasons, but
+ // we need to know which of SwapBuffers() or glFlush() to
+ // handle. If we're emulating, then we update on Flush(),
+ // otherwise we update on SwapBufers(). KeithH
+ BOOL bEmulateSingleBuffer;
+} WMesaContext, *PWMC;
+
+#define GLD_GET_WMESA_DRIVER(c) (WMesaContext*)(c)->glPriv
+
+// TODO:
+GLint stereo_flag = 0 ;
+
+/* If we are double-buffering, we want to get the DC for the
+ * off-screen DIB, otherwise the DC for the window.
+ */
+#define DD_GETDC ((Current->db_flag) ? Current->dib.hDC : Current->hDC )
+#define DD_RELEASEDC
+
+#define FLIP(Y) (Current->height-(Y)-1)
+
+struct DISPLAY_OPTIONS {
+ int stereo;
+ int fullScreen;
+ int mode;
+ int bpp;
+};
+
+struct DISPLAY_OPTIONS displayOptions;
+
+//---------------------------------------------------------------------------
+
+static unsigned char threeto8[8] = {
+ 0, 0111>>1, 0222>>1, 0333>>1, 0444>>1, 0555>>1, 0666>>1, 0377
+};
+
+static unsigned char twoto8[4] = {
+ 0, 0x55, 0xaa, 0xff
+};
+
+static unsigned char oneto8[2] = {
+ 0, 255
+};
+
+//---------------------------------------------------------------------------
+
+BYTE DITHER_RGB_2_8BIT( int red, int green, int blue, int pixel, int scanline)
+{
+ char unsigned redtemp, greentemp, bluetemp, paletteindex;
+
+ //*** now, look up each value in the halftone matrix
+ //*** using an 8x8 ordered dither.
+ redtemp = aDividedBy51[red]
+ + (aModulo51[red] > aHalftone8x8[(pixel%8)*8
+ + scanline%8]);
+ greentemp = aDividedBy51[(char unsigned)green]
+ + (aModulo51[green] > aHalftone8x8[
+ (pixel%8)*8 + scanline%8]);
+ bluetemp = aDividedBy51[(char unsigned)blue]
+ + (aModulo51[blue] > aHalftone8x8[
+ (pixel%8)*8 +scanline%8]);
+
+ //*** recombine the halftoned rgb values into a palette index
+ paletteindex =
+ redtemp + aTimes6[greentemp] + aTimes36[bluetemp];
+
+ //*** and translate through the wing halftone palette
+ //*** translation vector to give the correct value.
+ return aWinGHalftoneTranslation[paletteindex];
+}
+
+//---------------------------------------------------------------------------
+
+static unsigned char componentFromIndex(UCHAR i, UINT nbits, UINT shift)
+{
+ unsigned char val;
+
+ val = i >> shift;
+ switch (nbits) {
+
+ case 1:
+ val &= 0x1;
+ return oneto8[val];
+
+ case 2:
+ val &= 0x3;
+ return twoto8[val];
+
+ case 3:
+ val &= 0x7;
+ return threeto8[val];
+
+ default:
+ return 0;
+ }
+}
+
+//---------------------------------------------------------------------------
+
+
+void wmSetPixel(PWMC pwc, int iScanLine, int iPixel, BYTE r, BYTE g, BYTE b)
+{
+ WMesaContext *Current = pwc;
+
+ // Test for invalid scanline parameter. KeithH
+ if ((iScanLine < 0) || (iScanLine >= pwc->height))
+ return;
+
+ if (Current->db_flag) {
+ LPBYTE lpb = pwc->pbPixels;
+ UINT nBypp = pwc->cColorBits >> 3;
+ UINT nOffset = iPixel % nBypp;
+
+ lpb += pwc->ScanWidth * iScanLine;
+ lpb += iPixel * nBypp;
+
+ if(nBypp == 1){
+ if(pwc->dither_flag)
+ *lpb = DITHER_RGB_2_8BIT(r,g,b,iScanLine,iPixel);
+ else
+ *lpb = BGR8(r,g,b);
+ }
+ else if(nBypp == 2)
+ *((LPWORD)lpb) = BGR16(r,g,b);
+ else if (nBypp == 3)
+ *((LPDWORD)lpb) = BGR24(r,g,b);
+ else if (nBypp == 4)
+ *((LPDWORD)lpb) = BGR32(r,g,b);
+ }
+ else{
+ SetPixel(Current->hDC, iPixel, iScanLine, RGB(r,g,b));
+ }
+}
+
+//---------------------------------------------------------------------------
+
+void wmCreateDIBSection(
+ HDC hDC,
+ PWMC pwc, // handle of device context
+ CONST BITMAPINFO *pbmi, // bitmap size, format, and color data
+ UINT iUsage // color data type indicator: RGB values or palette indices
+ )
+{
+ DWORD dwSize = 0;
+ DWORD dwScanWidth;
+ UINT nBypp = pwc->cColorBits / 8;
+ HDC hic;
+
+ dwScanWidth = (((pwc->ScanWidth * nBypp)+ 3) & ~3);
+
+ pwc->ScanWidth =pwc->pitch = dwScanWidth;
+
+ if (stereo_flag)
+ pwc->ScanWidth = 2* pwc->pitch;
+
+ dwSize = sizeof(BITMAPINFO) + (dwScanWidth * pwc->height);
+
+ pwc->dib.hFileMap = CreateFileMapping((HANDLE)PAGE_FILE,
+ NULL,
+ PAGE_READWRITE | SEC_COMMIT,
+ 0,
+ dwSize,
+ NULL);
+
+ if (!pwc->dib.hFileMap)
+ return;
+
+ pwc->dib.base = MapViewOfFile(pwc->dib.hFileMap,
+ FILE_MAP_ALL_ACCESS,
+ 0,
+ 0,
+ 0);
+
+ if(!pwc->dib.base){
+ CloseHandle(pwc->dib.hFileMap);
+ return;
+ }
+
+
+ CopyMemory(pwc->dib.base, pbmi, sizeof(BITMAPINFO));
+
+ hic = CreateIC("display", NULL, NULL, NULL);
+ pwc->dib.hDC = CreateCompatibleDC(hic);
+
+
+ pwc->hbmDIB = CreateDIBSection(hic,
+ &(pwc->bmi),
+ (iUsage ? DIB_PAL_COLORS : DIB_RGB_COLORS),
+ &(pwc->pbPixels),
+ pwc->dib.hFileMap,
+ 0);
+ pwc->ScreenMem = pwc->addrOffScreen = pwc->pbPixels;
+ pwc->hOldBitmap = SelectObject(pwc->dib.hDC, pwc->hbmDIB);
+
+ DeleteDC(hic);
+
+ return;
+
+}
+
+//---------------------------------------------------------------------------
+
+void wmCreatePalette( PWMC pwdc )
+{
+ /* Create a compressed and re-expanded 3:3:2 palette */
+ int i;
+ LOGPALETTE *pPal;
+ BYTE rb, rs, gb, gs, bb, bs;
+
+ pwdc->nColors = 0x100;
+
+ pPal = (PLOGPALETTE)malloc(sizeof(LOGPALETTE) +
+ pwdc->nColors * sizeof(PALETTEENTRY));
+ memset( pPal, 0, sizeof(LOGPALETTE) + pwdc->nColors * sizeof(PALETTEENTRY) );
+
+ pPal->palVersion = 0x300;
+
+ rb = REDBITS;
+ rs = REDSHIFT;
+ gb = GREENBITS;
+ gs = GREENSHIFT;
+ bb = BLUEBITS;
+ bs = BLUESHIFT;
+
+ if (pwdc->db_flag) {
+
+ /* Need to make two palettes: one for the screen DC and one for the DIB. */
+ pPal->palNumEntries = pwdc->nColors;
+ for (i = 0; i < pwdc->nColors; i++) {
+ pPal->palPalEntry[i].peRed = componentFromIndex( i, rb, rs );
+ pPal->palPalEntry[i].peGreen = componentFromIndex( i, gb, gs );
+ pPal->palPalEntry[i].peBlue = componentFromIndex( i, bb, bs );
+ pPal->palPalEntry[i].peFlags = 0;
+ }
+ pwdc->hGLPalette = CreatePalette( pPal );
+ pwdc->hPalette = CreatePalette( pPal );
+ }
+
+ else {
+ pPal->palNumEntries = pwdc->nColors;
+ for (i = 0; i < pwdc->nColors; i++) {
+ pPal->palPalEntry[i].peRed = componentFromIndex( i, rb, rs );
+ pPal->palPalEntry[i].peGreen = componentFromIndex( i, gb, gs );
+ pPal->palPalEntry[i].peBlue = componentFromIndex( i, bb, bs );
+ pPal->palPalEntry[i].peFlags = 0;
+ }
+ pwdc->hGLPalette = CreatePalette( pPal );
+ }
+
+ free(pPal);
+
+}
+
+//---------------------------------------------------------------------------
+
+/* This function sets the color table of a DIB section
+ * to match that of the destination DC
+ */
+BOOL wmSetDibColors(PWMC pwc)
+{
+ RGBQUAD *pColTab, *pRGB;
+ PALETTEENTRY *pPal, *pPE;
+ int i, nColors;
+ BOOL bRet=TRUE;
+ DWORD dwErr=0;
+
+ /* Build a color table in the DIB that maps to the
+ * selected palette in the DC.
+ */
+ nColors = 1 << pwc->cColorBits;
+ pPal = (PALETTEENTRY *)malloc( nColors * sizeof(PALETTEENTRY));
+ memset( pPal, 0, nColors * sizeof(PALETTEENTRY) );
+ GetPaletteEntries( pwc->hGLPalette, 0, nColors, pPal );
+ pColTab = (RGBQUAD *)malloc( nColors * sizeof(RGBQUAD));
+ for (i = 0, pRGB = pColTab, pPE = pPal; i < nColors; i++, pRGB++, pPE++) {
+ pRGB->rgbRed = pPE->peRed;
+ pRGB->rgbGreen = pPE->peGreen;
+ pRGB->rgbBlue = pPE->peBlue;
+ }
+ if(pwc->db_flag)
+ bRet = SetDIBColorTable(pwc->dib.hDC, 0, nColors, pColTab );
+
+ if(!bRet)
+ dwErr = GetLastError();
+
+ free( pColTab );
+ free( pPal );
+
+ return bRet;
+}
+
+//---------------------------------------------------------------------------
+
+static void wmSetPixelFormat( PWMC wc, HDC hDC)
+{
+ if(wc->rgb_flag)
+ wc->cColorBits = GetDeviceCaps(hDC, BITSPIXEL);
+ else
+ wc->cColorBits = 8;
+ switch(wc->cColorBits){
+ case 8:
+ if(wc->dither_flag != GL_TRUE)
+ wc->pixelformat = PF_INDEX8;
+ else
+ wc->pixelformat = PF_DITHER8;
+ break;
+ case 16:
+ wc->pixelformat = PF_5R6G5B;
+ break;
+ case 32:
+ wc->pixelformat = PF_8R8G8B;
+ break;
+ default:
+ wc->pixelformat = PF_BADFORMAT;
+ }
+}
+
+//---------------------------------------------------------------------------
+
+/*
+ * This function creates the DIB section that is used for combined
+ * GL and GDI calls
+ */
+BOOL wmCreateBackingStore(PWMC pwc, long lxSize, long lySize)
+{
+ HDC hdc = pwc->hDC;
+ LPBITMAPINFO pbmi = &(pwc->bmi);
+ int iUsage;
+
+ pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+ pbmi->bmiHeader.biWidth = lxSize;
+ pbmi->bmiHeader.biHeight= -lySize;
+ pbmi->bmiHeader.biPlanes = 1;
+ if(pwc->rgb_flag)
+ pbmi->bmiHeader.biBitCount = GetDeviceCaps(pwc->hDC, BITSPIXEL);
+ else
+ pbmi->bmiHeader.biBitCount = 8;
+ pbmi->bmiHeader.biCompression = BI_RGB;
+ pbmi->bmiHeader.biSizeImage = 0;
+ pbmi->bmiHeader.biXPelsPerMeter = 0;
+ pbmi->bmiHeader.biYPelsPerMeter = 0;
+ pbmi->bmiHeader.biClrUsed = 0;
+ pbmi->bmiHeader.biClrImportant = 0;
+
+ iUsage = (pbmi->bmiHeader.biBitCount <= 8) ? DIB_PAL_COLORS : DIB_RGB_COLORS;
+
+ pwc->cColorBits = pbmi->bmiHeader.biBitCount;
+ pwc->ScanWidth = pwc->pitch = lxSize;
+ pwc->width = lxSize;
+ pwc->height = lySize;
+
+ wmCreateDIBSection(hdc, pwc, pbmi, iUsage);
+
+ if ((iUsage == DIB_PAL_COLORS) && !(pwc->hGLPalette)) {
+ wmCreatePalette( pwc );
+ wmSetDibColors( pwc );
+ }
+ wmSetPixelFormat(pwc, pwc->hDC);
+ return TRUE;
+}
+
+//---------------------------------------------------------------------------
+
+/*
+ * Free up the dib section that was created
+ */
+BOOL wmDeleteBackingStore(PWMC pwc)
+{
+ SelectObject(pwc->dib.hDC, pwc->hOldBitmap);
+ DeleteDC(pwc->dib.hDC);
+ DeleteObject(pwc->hbmDIB);
+ UnmapViewOfFile(pwc->dib.base);
+ CloseHandle(pwc->dib.hFileMap);
+ return TRUE;
+}
+
+//---------------------------------------------------------------------------
+
+/*
+ * Blit memory DC to screen DC
+ */
+BOOL wmFlush(PWMC pwc, HDC hDC)
+{
+ BOOL bRet = 0;
+ DWORD dwErr = 0;
+
+// Now using bEmulateSingleBuffer in the calling function. KeithH
+
+// if(pwc->db_flag){
+ bRet = BitBlt(hDC, 0, 0, pwc->width, pwc->height,
+ pwc->dib.hDC, 0, 0, SRCCOPY);
+// }
+
+ return bRet;
+
+}
+
+//---------------------------------------------------------------------------
+// Support Functions
+//---------------------------------------------------------------------------
+
+static void flush(GLcontext* ctx)
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+/*
+ if((Current->rgb_flag &&!(Current->db_flag))
+ ||(!Current->rgb_flag))
+ {
+ wmFlush(Current, Current->hDC);
+ }
+*/
+ // Only flush if we're not in double-buffer mode. KeithH
+ // The demo fractal.c calls glutSwapBuffers() then glFlush()!
+ if (Current->bEmulateSingleBuffer) {
+ wmFlush(Current, Current->hDC);
+ }
+}
+
+
+//---------------------------------------------------------------------------
+
+
+/*
+ * Set the color index used to clear the color buffer.
+ */
+static void clear_index(GLcontext* ctx, GLuint index)
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+ Current->clearpixel = index;
+}
+
+
+
+//---------------------------------------------------------------------------
+
+/*
+ * Set the color used to clear the color buffer.
+ */
+//static void clear_color( GLcontext* ctx, const GLchan color[4] )
+// Changed for Mesa 5.x. KeithH
+static void clear_color(
+ GLcontext* ctx,
+ const GLfloat color[4])
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+ GLubyte col[4];
+ CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]);
+ CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]);
+ CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]);
+ Current->clearpixel = RGB(col[0], col[1], col[2]);
+}
+
+
+//---------------------------------------------------------------------------
+
+
+/*
+ * Clear the specified region of the color buffer using the clear color
+ * or index as specified by one of the two functions above.
+ *
+ * This procedure clears either the front and/or the back COLOR buffers.
+ * Only the "left" buffer is cleared since we are not stereo.
+ * Clearing of the other non-color buffers is left to the swrast.
+ * We also only clear the color buffers if the color masks are all 1's.
+ * Otherwise, we let swrast do it.
+ */
+
+static clear(GLcontext* ctx, GLbitfield mask,
+ GLboolean all, GLint x, GLint y, GLint width, GLint height)
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+ DWORD dwColor;
+ WORD wColor;
+ BYTE bColor;
+ LPDWORD lpdw = (LPDWORD)Current->pbPixels;
+ LPWORD lpw = (LPWORD)Current->pbPixels;
+ LPBYTE lpb = Current->pbPixels;
+ int lines;
+ const GLuint *colorMask = (GLuint *) &ctx->Color.ColorMask;
+
+ if (all){
+ x=y=0;
+ width=Current->width;
+ height=Current->height;
+ }
+
+
+ /* sanity check - can't have right(stereo) buffers */
+ assert((mask & (DD_FRONT_RIGHT_BIT | DD_BACK_RIGHT_BIT)) == 0);
+
+ /* clear alpha */
+ if ((mask & (DD_FRONT_LEFT_BIT | DD_BACK_RIGHT_BIT)) &&
+ ctx->DrawBuffer->UseSoftwareAlphaBuffers &&
+ ctx->Color.ColorMask[ACOMP]) {
+ _mesa_clear_alpha_buffers( ctx );
+ }
+
+ if (*colorMask == 0xffffffff && ctx->Color.IndexMask == 0xffffffff) {
+ if (mask & DD_BACK_LEFT_BIT) {
+ /* Double-buffering - clear back buffer */
+ UINT nBypp = Current->cColorBits / 8;
+ int i = 0;
+ int iSize = 0;
+
+ assert(Current->db_flag==GL_TRUE); /* we'd better be double buffer */
+ if(nBypp ==1 ){
+ iSize = Current->width/4;
+ bColor = BGR8(GetRValue(Current->clearpixel),
+ GetGValue(Current->clearpixel),
+ GetBValue(Current->clearpixel));
+ wColor = MAKEWORD(bColor,bColor);
+ dwColor = MAKELONG(wColor, wColor);
+ }
+ if(nBypp == 2){
+ iSize = Current->width / 2;
+ wColor = BGR16(GetRValue(Current->clearpixel),
+ GetGValue(Current->clearpixel),
+ GetBValue(Current->clearpixel));
+ dwColor = MAKELONG(wColor, wColor);
+ }
+ else if(nBypp == 4){
+ iSize = Current->width;
+ dwColor = BGR32(GetRValue(Current->clearpixel),
+ GetGValue(Current->clearpixel),
+ GetBValue(Current->clearpixel));
+ }
+
+ /* clear a line */
+ while(i < iSize){
+ *lpdw = dwColor;
+ lpdw++;
+ i++;
+ }
+
+ /* This is the 24bit case */
+ if (nBypp == 3) {
+ iSize = Current->width *3/4;
+ dwColor = BGR24(GetRValue(Current->clearpixel),
+ GetGValue(Current->clearpixel),
+ GetBValue(Current->clearpixel));
+ while(i < iSize){
+ *lpdw = dwColor;
+ lpb += nBypp;
+ lpdw = (LPDWORD)lpb;
+ i++;
+ }
+ }
+
+ i = 0;
+ if (stereo_flag)
+ lines = height /2;
+ else
+ lines = height;
+ /* copy cleared line to other lines in buffer */
+ do {
+ memcpy(lpb, Current->pbPixels, iSize*4);
+ lpb += Current->ScanWidth;
+ i++;
+ }
+ while (i<lines-1);
+ mask &= ~DD_BACK_LEFT_BIT;
+ } /* double-buffer */
+
+ if (mask & DD_FRONT_LEFT_BIT) {
+ /* single-buffer */
+ HDC DC=DD_GETDC;
+ HPEN Pen=CreatePen(PS_SOLID,1,Current->clearpixel);
+ HBRUSH Brush=CreateSolidBrush(Current->clearpixel);
+ HPEN Old_Pen=SelectObject(DC,Pen);
+ HBRUSH Old_Brush=SelectObject(DC,Brush);
+ Rectangle(DC,x,y,x+width,y+height);
+ SelectObject(DC,Old_Pen);
+ SelectObject(DC,Old_Brush);
+ DeleteObject(Pen);
+ DeleteObject(Brush);
+ DD_RELEASEDC;
+ mask &= ~DD_FRONT_LEFT_BIT;
+ } /* single-buffer */
+ } /* if masks are all 1's */
+
+ /* Call swrast if there is anything left to clear (like DEPTH) */
+ if (mask)
+ _swrast_Clear( ctx, mask, all, x, y, width, height );
+}
+
+
+//---------------------------------------------------------------------------
+
+
+static void enable( GLcontext* ctx, GLenum pname, GLboolean enable )
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+
+ if (!Current)
+ return;
+
+ if (pname == GL_DITHER) {
+ if(enable == GL_FALSE){
+ Current->dither_flag = GL_FALSE;
+ if(Current->cColorBits == 8)
+ Current->pixelformat = PF_INDEX8;
+ }
+ else{
+ if (Current->rgb_flag && Current->cColorBits == 8){
+ Current->pixelformat = PF_DITHER8;
+ Current->dither_flag = GL_TRUE;
+ }
+ else
+ Current->dither_flag = GL_FALSE;
+ }
+ }
+}
+
+//---------------------------------------------------------------------------
+
+static GLboolean set_draw_buffer( GLcontext* ctx, GLenum mode )
+{
+ /* TODO: this could be better */
+ if (mode==GL_FRONT_LEFT || mode==GL_BACK_LEFT) {
+ return GL_TRUE;
+ }
+ else {
+ return GL_FALSE;
+ }
+}
+
+//---------------------------------------------------------------------------
+
+
+static void set_read_buffer(GLcontext *ctx, GLframebuffer *colorBuffer,
+ GLenum buffer )
+{
+ /* XXX todo */
+ return;
+}
+
+
+//---------------------------------------------------------------------------
+
+
+/* Return characteristics of the output buffer. */
+//static void buffer_size( GLcontext* ctx, GLuint *width, GLuint *height )
+// Altered for Mesa 5.x. KeithH
+static void buffer_size(
+ GLframebuffer *buffer,
+ GLuint *width,
+ GLuint *height)
+{
+ // For some reason the context is not passed into this function.
+ // Therefore we have to explicitly retrieve it.
+ GET_CURRENT_CONTEXT(ctx);
+
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+ int New_Size;
+ RECT CR;
+
+ GetClientRect(Current->Window,&CR);
+
+ *width=CR.right;
+ *height=CR.bottom;
+
+ New_Size=((*width)!=Current->width) || ((*height)!=Current->height);
+
+ if (New_Size){
+ Current->width=*width;
+ Current->height=*height;
+ Current->ScanWidth=Current->width;
+ if ((Current->ScanWidth%sizeof(long))!=0)
+ Current->ScanWidth+=(sizeof(long)-(Current->ScanWidth%sizeof(long)));
+
+ if (Current->db_flag){
+ if (Current->rgb_flag==GL_TRUE && Current->dither_flag!=GL_TRUE){
+ wmDeleteBackingStore(Current);
+ wmCreateBackingStore(Current, Current->width, Current->height);
+ }
+ }
+
+ }
+}
+
+
+
+/**********************************************************************/
+/***** Accelerated point, line, polygon rendering *****/
+/**********************************************************************/
+
+/* Accelerated routines are not implemented in 4.0. See OSMesa for ideas. */
+
+static void fast_rgb_points( GLcontext* ctx, GLuint first, GLuint last )
+{
+}
+
+//---------------------------------------------------------------------------
+
+/* Return pointer to accelerated points function */
+extern points_func choose_points_function( GLcontext* ctx )
+{
+ return NULL;
+}
+
+//---------------------------------------------------------------------------
+
+static void fast_flat_rgb_line( GLcontext* ctx, GLuint v0,
+ GLuint v1, GLuint pv )
+{
+}
+
+//---------------------------------------------------------------------------
+
+static line_func choose_line_function( GLcontext* ctx )
+{
+}
+
+
+/**********************************************************************/
+/***** Span-based pixel drawing *****/
+/**********************************************************************/
+
+
+/* Write a horizontal span of 32-bit color-index pixels with a boolean mask. */
+static void write_ci32_span( const GLcontext* ctx,
+ GLuint n, GLint x, GLint y,
+ const GLuint index[],
+ const GLubyte mask[] )
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+ GLuint i;
+ PBYTE Mem=Current->ScreenMem+FLIP(y)*Current->ScanWidth+x;
+ assert(Current->rgb_flag==GL_FALSE);
+ for (i=0; i<n; i++)
+ if (mask[i])
+ Mem[i]=index[i];
+}
+
+
+//---------------------------------------------------------------------------
+
+/* Write a horizontal span of 8-bit color-index pixels with a boolean mask. */
+static void write_ci8_span( const GLcontext* ctx,
+ GLuint n, GLint x, GLint y,
+ const GLubyte index[],
+ const GLubyte mask[] )
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+ GLuint i;
+ PBYTE Mem=Current->ScreenMem+FLIP(y)*Current->ScanWidth+x;
+ assert(Current->rgb_flag==GL_FALSE);
+ for (i=0; i<n; i++)
+ if (mask[i])
+ Mem[i]=index[i];
+}
+
+
+//---------------------------------------------------------------------------
+
+
+/*
+ * Write a horizontal span of pixels with a boolean mask. The current
+ * color index is used for all pixels.
+ */
+static void write_mono_ci_span(const GLcontext* ctx,
+ GLuint n,GLint x,GLint y,
+ GLuint colorIndex, const GLubyte mask[])
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+ GLuint i;
+ BYTE *Mem=Current->ScreenMem+FLIP(y)*Current->ScanWidth+x;
+ assert(Current->rgb_flag==GL_FALSE);
+ for (i=0; i<n; i++)
+ if (mask[i])
+ Mem[i]=colorIndex;
+}
+
+//---------------------------------------------------------------------------
+
+/*
+ * To improve the performance of this routine, frob the data into an actual
+ * scanline and call bitblt on the complete scan line instead of SetPixel.
+ */
+
+/* Write a horizontal span of RGBA color pixels with a boolean mask. */
+static void write_rgba_span( const GLcontext* ctx, GLuint n, GLint x, GLint y,
+ const GLubyte rgba[][4], const GLubyte mask[] )
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+ PWMC pwc = Current;
+
+ if (pwc->rgb_flag==GL_TRUE)
+ {
+ GLuint i;
+ HDC DC=DD_GETDC;
+ y=FLIP(y);
+ if (mask) {
+ for (i=0; i<n; i++)
+ if (mask[i])
+ wmSetPixel(pwc, y, x + i,
+ rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ }
+ else {
+ for (i=0; i<n; i++)
+ wmSetPixel(pwc, y, x + i,
+ rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );
+ }
+ DD_RELEASEDC;
+ }
+ else
+ {
+ GLuint i;
+ BYTE *Mem=Current->ScreenMem+y*Current->ScanWidth+x;
+ y = FLIP(y);
+ if (mask) {
+ for (i=0; i<n; i++)
+ if (mask[i])
+ Mem[i] = GetNearestPaletteIndex(Current->hPal,
+ RGB(rgba[i][RCOMP],
+ rgba[i][GCOMP],
+ rgba[i][BCOMP]));
+ }
+ else {
+ for (i=0; i<n; i++)
+ Mem[i] = GetNearestPaletteIndex(Current->hPal,
+ RGB(rgba[i][RCOMP],
+ rgba[i][GCOMP],
+ rgba[i][BCOMP]));
+ }
+ }
+}
+
+//---------------------------------------------------------------------------
+
+/* Write a horizontal span of RGB color pixels with a boolean mask. */
+static void write_rgb_span( const GLcontext* ctx,
+ GLuint n, GLint x, GLint y,
+ const GLubyte rgb[][3], const GLubyte mask[] )
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+ PWMC pwc = Current;
+
+ if (pwc->rgb_flag==GL_TRUE)
+ {
+ GLuint i;
+ HDC DC=DD_GETDC;
+ y=FLIP(y);
+ if (mask) {
+ for (i=0; i<n; i++)
+ if (mask[i])
+ wmSetPixel(pwc, y, x + i,
+ rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]);
+ }
+ else {
+ for (i=0; i<n; i++)
+ wmSetPixel(pwc, y, x + i,
+ rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] );
+ }
+ DD_RELEASEDC;
+ }
+ else
+ {
+ GLuint i;
+ BYTE *Mem=Current->ScreenMem+y*Current->ScanWidth+x;
+ y = FLIP(y);
+ if (mask) {
+ for (i=0; i<n; i++)
+ if (mask[i])
+ Mem[i] = GetNearestPaletteIndex(Current->hPal,
+ RGB(rgb[i][RCOMP],
+ rgb[i][GCOMP],
+ rgb[i][BCOMP]));
+ }
+ else {
+ for (i=0; i<n; i++)
+ Mem[i] = GetNearestPaletteIndex(Current->hPal,
+ RGB(rgb[i][RCOMP],
+ rgb[i][GCOMP],
+ rgb[i][BCOMP]));
+ }
+ }
+}
+
+//---------------------------------------------------------------------------
+
+/*
+ * Write a horizontal span of pixels with a boolean mask. The current color
+ * is used for all pixels.
+ */
+static void write_mono_rgba_span( const GLcontext* ctx,
+ GLuint n, GLint x, GLint y,
+ const GLchan color[4], const GLubyte mask[])
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+ ULONG pixel = RGB( color[RCOMP], color[GCOMP], color[BCOMP] );
+ GLuint i;
+ HDC DC=DD_GETDC;
+ PWMC pwc = Current;
+ assert(Current->rgb_flag==GL_TRUE);
+ y=FLIP(y);
+ if(Current->rgb_flag==GL_TRUE){
+ for (i=0; i<n; i++)
+ if (mask[i])
+ wmSetPixel(pwc,y,x+i,color[RCOMP], color[GCOMP], color[BCOMP]);
+ }
+ else {
+ for (i=0; i<n; i++)
+ if (mask[i])
+ SetPixel(DC, y, x+i, pixel);
+ }
+ DD_RELEASEDC;
+}
+
+
+
+/**********************************************************************/
+/***** Array-based pixel drawing *****/
+/**********************************************************************/
+
+
+/* Write an array of 32-bit index pixels with a boolean mask. */
+static void write_ci32_pixels( const GLcontext* ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ const GLuint index[], const GLubyte mask[] )
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+ GLuint i;
+ assert(Current->rgb_flag==GL_FALSE);
+ for (i=0; i<n; i++) {
+ if (mask[i]) {
+ BYTE *Mem=Current->ScreenMem+FLIP(y[i])*Current->ScanWidth+x[i];
+ *Mem = index[i];
+ }
+ }
+}
+
+
+//---------------------------------------------------------------------------
+
+
+/*
+ * Write an array of pixels with a boolean mask. The current color
+ * index is used for all pixels.
+ */
+static void write_mono_ci_pixels( const GLcontext* ctx,
+ GLuint n,
+ const GLint x[], const GLint y[],
+ GLuint colorIndex, const GLubyte mask[] )
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+ GLuint i;
+ assert(Current->rgb_flag==GL_FALSE);
+ for (i=0; i<n; i++) {
+ if (mask[i]) {
+ BYTE *Mem=Current->ScreenMem+FLIP(y[i])*Current->ScanWidth+x[i];
+ *Mem = colorIndex;
+ }
+ }
+}
+
+
+//---------------------------------------------------------------------------
+
+
+/* Write an array of RGBA pixels with a boolean mask. */
+static void write_rgba_pixels( const GLcontext* ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ const GLubyte rgba[][4], const GLubyte mask[] )
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+ GLuint i;
+ PWMC pwc = Current;
+ HDC DC=DD_GETDC;
+ assert(Current->rgb_flag==GL_TRUE);
+ for (i=0; i<n; i++)
+ if (mask[i])
+ wmSetPixel(pwc, FLIP(y[i]), x[i],
+ rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]);
+ DD_RELEASEDC;
+}
+
+
+//---------------------------------------------------------------------------
+
+
+/*
+ * Write an array of pixels with a boolean mask. The current color
+ * is used for all pixels.
+ */
+static void write_mono_rgba_pixels( const GLcontext* ctx,
+ GLuint n,
+ const GLint x[], const GLint y[],
+ const GLchan color[4],
+ const GLubyte mask[] )
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+ GLuint i;
+ PWMC pwc = Current;
+ HDC DC=DD_GETDC;
+ assert(Current->rgb_flag==GL_TRUE);
+ for (i=0; i<n; i++)
+ if (mask[i])
+ wmSetPixel(pwc, FLIP(y[i]),x[i],color[RCOMP],
+ color[GCOMP], color[BCOMP]);
+ DD_RELEASEDC;
+}
+
+/**********************************************************************/
+/***** Read spans/arrays of pixels *****/
+/**********************************************************************/
+
+/* Read a horizontal span of color-index pixels. */
+static void read_ci32_span( const GLcontext* ctx, GLuint n, GLint x, GLint y,
+ GLuint index[])
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+ GLuint i;
+ BYTE *Mem=Current->ScreenMem+FLIP(y)*Current->ScanWidth+x;
+ assert(Current->rgb_flag==GL_FALSE);
+ for (i=0; i<n; i++)
+ index[i]=Mem[i];
+}
+
+//---------------------------------------------------------------------------
+
+/* Read an array of color index pixels. */
+static void read_ci32_pixels( const GLcontext* ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ GLuint indx[], const GLubyte mask[] )
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+ GLuint i;
+ assert(Current->rgb_flag==GL_FALSE);
+ for (i=0; i<n; i++) {
+ if (mask[i]) {
+ indx[i]=*(Current->ScreenMem+FLIP(y[i])*Current->ScanWidth+x[i]);
+ }
+ }
+}
+
+//---------------------------------------------------------------------------
+
+/* Read a horizontal span of color pixels. */
+static void read_rgba_span( const GLcontext* ctx,
+ GLuint n, GLint x, GLint y,
+ GLubyte rgba[][4] )
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+ UINT i;
+ COLORREF Color;
+ HDC DC=DD_GETDC;
+ assert(Current->rgb_flag==GL_TRUE);
+ y = Current->height - y - 1;
+ for (i=0; i<n; i++) {
+ Color=GetPixel(DC,x+i,y);
+ rgba[i][RCOMP] = GetRValue(Color);
+ rgba[i][GCOMP] = GetGValue(Color);
+ rgba[i][BCOMP] = GetBValue(Color);
+ rgba[i][ACOMP] = 255;
+ }
+ DD_RELEASEDC;
+}
+
+//---------------------------------------------------------------------------
+
+/* Read an array of color pixels. */
+static void read_rgba_pixels( const GLcontext* ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ GLubyte rgba[][4], const GLubyte mask[] )
+{
+ GLD_context *gldCtx = GLD_GET_CONTEXT(ctx);
+ WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx);
+ GLuint i;
+ COLORREF Color;
+ HDC DC=DD_GETDC;
+ assert(Current->rgb_flag==GL_TRUE);
+ for (i=0; i<n; i++) {
+ if (mask[i]) {
+ GLint y2 = Current->height - y[i] - 1;
+ Color=GetPixel(DC,x[i],y2);
+ rgba[i][RCOMP] = GetRValue(Color);
+ rgba[i][GCOMP] = GetGValue(Color);
+ rgba[i][BCOMP] = GetBValue(Color);
+ rgba[i][ACOMP] = 255;
+ }
+ }
+ DD_RELEASEDC;
+}
+
+//---------------------------------------------------------------------------
+
+static void wmesa_update_state(
+ GLcontext *ctx,
+ GLuint new_state)
+{
+ _swrast_InvalidateState( ctx, new_state );
+ _swsetup_InvalidateState( ctx, new_state );
+ _ac_InvalidateState( ctx, new_state );
+ _tnl_InvalidateState( ctx, new_state );
+}
+
+//---------------------------------------------------------------------------
+
+static void wmesa_viewport(
+ GLcontext *ctx,
+ GLint x,
+ GLint y,
+ GLsizei w,
+ GLsizei h)
+{
+// ctx->Driver.ResizeBuffersMESA(ctx);
+}
+
+//---------------------------------------------------------------------------
+
+static void wmesa_update_state_first_time(
+ GLcontext *ctx,
+ GLuint new_state)
+{
+ struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference( ctx );
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+
+ /*
+ * XXX these function pointers could be initialized just once during
+ * context creation since they don't depend on any state changes.
+ * kws - This is true - this function gets called a lot and it
+ * would be good to minimize setting all this when not needed.
+ */
+ // Good idea, so I'll do it. KeithH. :-)
+
+ ctx->Driver.GetString = _gldGetStringGeneric;
+ ctx->Driver.UpdateState = wmesa_update_state;
+ ctx->Driver.DrawBuffer = set_draw_buffer;
+ ctx->Driver.ResizeBuffers = _swrast_alloc_buffers;
+ ctx->Driver.GetBufferSize = buffer_size;
+
+ ctx->Driver.Viewport = wmesa_viewport;
+
+ ctx->Driver.Accum = _swrast_Accum;
+ ctx->Driver.Bitmap = _swrast_Bitmap;
+ ctx->Driver.Clear = clear;
+
+ ctx->Driver.Flush = flush;
+ ctx->Driver.ClearIndex = clear_index;
+ ctx->Driver.ClearColor = clear_color;
+ ctx->Driver.Enable = enable;
+
+ ctx->Driver.CopyPixels = _swrast_CopyPixels;
+ ctx->Driver.DrawPixels = _swrast_DrawPixels;
+ ctx->Driver.ReadPixels = _swrast_ReadPixels;
+
+ ctx->Driver.ChooseTextureFormat = _mesa_choose_tex_format;
+ ctx->Driver.TexImage1D = _mesa_store_teximage1d;
+ ctx->Driver.TexImage2D = _mesa_store_teximage2d;
+ ctx->Driver.TexImage3D = _mesa_store_teximage3d;
+ ctx->Driver.TexSubImage1D = _mesa_store_texsubimage1d;
+ ctx->Driver.TexSubImage2D = _mesa_store_texsubimage2d;
+ ctx->Driver.TexSubImage3D = _mesa_store_texsubimage3d;
+ ctx->Driver.TestProxyTexImage = _mesa_test_proxy_teximage;
+
+ ctx->Driver.CopyTexImage1D = _swrast_copy_teximage1d;
+ ctx->Driver.CopyTexImage2D = _swrast_copy_teximage2d;
+ ctx->Driver.CopyTexSubImage1D = _swrast_copy_texsubimage1d;
+ ctx->Driver.CopyTexSubImage2D = _swrast_copy_texsubimage2d;
+ ctx->Driver.CopyTexSubImage3D = _swrast_copy_texsubimage3d;
+ ctx->Driver.CopyColorTable = _swrast_CopyColorTable;
+ ctx->Driver.CopyColorSubTable = _swrast_CopyColorSubTable;
+ ctx->Driver.CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
+ ctx->Driver.CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
+
+ // Does not apply for Mesa 5.x
+ //ctx->Driver.BaseCompressedTexFormat = _mesa_base_compressed_texformat;
+ //ctx->Driver.CompressedTextureSize = _mesa_compressed_texture_size;
+ //ctx->Driver.GetCompressedTexImage = _mesa_get_compressed_teximage;
+
+ swdd->SetBuffer = set_read_buffer;
+
+
+ /* Pixel/span writing functions: */
+ swdd->WriteRGBASpan = write_rgba_span;
+ swdd->WriteRGBSpan = write_rgb_span;
+ swdd->WriteMonoRGBASpan = write_mono_rgba_span;
+ swdd->WriteRGBAPixels = write_rgba_pixels;
+ swdd->WriteMonoRGBAPixels = write_mono_rgba_pixels;
+ swdd->WriteCI32Span = write_ci32_span;
+ swdd->WriteCI8Span = write_ci8_span;
+ swdd->WriteMonoCISpan = write_mono_ci_span;
+ swdd->WriteCI32Pixels = write_ci32_pixels;
+ swdd->WriteMonoCIPixels = write_mono_ci_pixels;
+
+ swdd->ReadCI32Span = read_ci32_span;
+ swdd->ReadRGBASpan = read_rgba_span;
+ swdd->ReadCI32Pixels = read_ci32_pixels;
+ swdd->ReadRGBAPixels = read_rgba_pixels;
+
+
+ tnl->Driver.RunPipeline = _tnl_run_pipeline;
+
+ wmesa_update_state(ctx, new_state);
+}
+
+//---------------------------------------------------------------------------
+// Driver interface functions
+//---------------------------------------------------------------------------
+
+BOOL gldCreateDrawable_MesaSW(
+ DGL_ctx *pCtx,
+ BOOL bPersistantInterface,
+ BOOL bPersistantBuffers)
+{
+ WMesaContext *c;
+ GLboolean true_color_flag;
+ GLboolean rgb_flag = GL_TRUE;
+ GLboolean db_flag = GL_TRUE;
+
+ if (pCtx == NULL)
+ return FALSE;
+
+ c = (struct wmesa_context * ) calloc(1,sizeof(struct wmesa_context));
+ if (!c)
+ return FALSE;
+
+ pCtx->glPriv = c;
+
+ c->hDC = pCtx->hDC;
+ c->Window = pCtx->hWnd;
+
+ true_color_flag = GetDeviceCaps(pCtx->hDC, BITSPIXEL) > 8;
+
+
+#ifdef DITHER
+ if ((true_color_flag==GL_FALSE) && (rgb_flag == GL_TRUE)){
+ c->dither_flag = GL_TRUE;
+ c->hPalHalfTone = WinGCreateHalftonePalette();
+ }
+ else
+ c->dither_flag = GL_FALSE;
+#else
+ c->dither_flag = GL_FALSE;
+#endif
+
+
+ if (rgb_flag==GL_FALSE)
+ {
+ c->rgb_flag = GL_FALSE;
+#if 0
+ /* Old WinG stuff???? */
+ c->db_flag = db_flag =GL_TRUE; /* WinG requires double buffering */
+ printf("Single buffer is not supported in color index mode, ",
+ "setting to double buffer.\n");
+#endif
+ }
+ else
+ {
+ c->rgb_flag = GL_TRUE;
+ }
+
+// db_flag = pCtx->lpPF->pfd.dwFlags & PFD_DOUBLEBUFFER ? GL_TRUE : GL_FALSE;
+ db_flag = GL_TRUE; // Force double-buffer
+ if (db_flag) {
+ c->db_flag = 1;
+ /* Double buffered */
+ {
+ wmCreateBackingStore(c, pCtx->dwWidth, pCtx->dwHeight);
+
+ }
+ } else {
+ /* Single Buffered */
+ if (c->rgb_flag)
+ c->db_flag = 0;
+ }
+
+ c->bEmulateSingleBuffer = (pCtx->lpPF->pfd.dwFlags & PFD_DOUBLEBUFFER)
+ ? FALSE : TRUE;
+
+ return TRUE;
+}
+
+//---------------------------------------------------------------------------
+
+BOOL gldResizeDrawable_MesaSW(
+ DGL_ctx *ctx,
+ BOOL bDefaultDriver,
+ BOOL bPersistantInterface,
+ BOOL bPersistantBuffers)
+{
+ WMesaContext *c;
+
+ if (ctx == NULL)
+ return FALSE;
+
+ c = ctx->glPriv;
+ if (c == NULL)
+ return FALSE;
+
+ c->hDC = ctx->hDC;
+ c->Window = ctx->hWnd;
+// c->width = ctx->dwWidth;
+// c->height = ctx->dwHeight;
+
+ if (c->db_flag) {
+ wmDeleteBackingStore(c);
+ wmCreateBackingStore(c, ctx->dwWidth, ctx->dwHeight);
+ }
+
+ return TRUE;
+}
+
+//---------------------------------------------------------------------------
+
+BOOL gldDestroyDrawable_MesaSW(
+ DGL_ctx *ctx)
+{
+ WMesaContext *c;
+
+ if (ctx == NULL)
+ return FALSE;
+
+ c = ctx->glPriv;
+ if (c == NULL)
+ return FALSE;
+
+ if (c->hPalHalfTone != NULL)
+ DeleteObject(c->hPalHalfTone);
+
+ if (c->db_flag)
+ wmDeleteBackingStore(c);
+
+ free(c);
+
+ ctx->glPriv = NULL;
+
+ return TRUE;
+}
+
+//---------------------------------------------------------------------------
+
+BOOL gldCreatePrivateGlobals_MesaSW(void)
+{
+ // Mesa Software driver needs no private globals
+ return TRUE;
+}
+
+//---------------------------------------------------------------------------
+
+BOOL gldDestroyPrivateGlobals_MesaSW(void)
+{
+ // Mesa Software driver needs no private globals
+ return TRUE;
+}
+
+//---------------------------------------------------------------------------
+
+BOOL gldBuildPixelformatList_MesaSW(void)
+{
+ // Release any existing pixelformat list
+ if (glb.lpPF) {
+ free(glb.lpPF);
+ }
+
+ glb.nPixelFormatCount = 0;
+ glb.lpPF = NULL;
+
+ glb.lpPF = (DGL_pixelFormat *)calloc(2, sizeof(DGL_pixelFormat));
+ if (glb.lpPF == NULL)
+ return FALSE;
+ // Single-buffered
+ memcpy(&glb.lpPF[0], &pfTemplateMesaSW, sizeof(DGL_pixelFormat));
+ glb.lpPF[0].pfd.dwFlags &= ~PFD_DOUBLEBUFFER; // Remove doublebuffer flag
+ // Double-buffered
+ memcpy(&glb.lpPF[1], &pfTemplateMesaSW, sizeof(DGL_pixelFormat));
+ glb.nPixelFormatCount = 2;
+
+ // Mark list as 'current'
+ glb.bPixelformatsDirty = FALSE;
+
+ return TRUE;
+}
+
+//---------------------------------------------------------------------------
+
+BOOL gldInitialiseMesa_MesaSW(
+ DGL_ctx *gld)
+{
+ GLcontext *ctx;
+
+ if (gld == NULL)
+ return FALSE;
+
+ ctx = gld->glCtx;
+
+ // Set max texture size to 256
+ ctx->Const.MaxTextureLevels = 8;
+
+ // Multitexture enable/disable
+ ctx->Const.MaxTextureUnits = (glb.bMultitexture) ? MAX_TEXTURE_UNITS : 1;
+
+ /* Initialize the software rasterizer and helper modules.*/
+
+ // Added this to force max texture diminsion to 256. KeithH
+ ctx->Const.MaxTextureLevels = 8;
+
+ _mesa_enable_sw_extensions(ctx);
+ _mesa_enable_imaging_extensions(ctx);
+ _mesa_enable_1_3_extensions(ctx);
+
+// _swrast_CreateContext( ctx );
+// _ac_CreateContext( ctx );
+// _tnl_CreateContext( ctx );
+// _swsetup_CreateContext( ctx );
+
+ _swsetup_Wakeup( ctx );
+
+ wmesa_update_state_first_time(ctx, ~0);
+
+ return TRUE;
+}
+
+//---------------------------------------------------------------------------
+
+BOOL gldSwapBuffers_MesaSW(
+ DGL_ctx *ctx,
+ HDC hDC,
+ HWND hWnd)
+{
+ WMesaContext *c;
+
+ if (ctx == NULL)
+ return FALSE;
+
+ c = ctx->glPriv;
+ if (c == NULL)
+ return FALSE;
+
+ /* If we're swapping the buffer associated with the current context
+ * we have to flush any pending rendering commands first.
+ */
+
+ // Altered to respect bEmulateSingleBuffer. KeithH
+// if (c->db_flag)
+ if (!c->bEmulateSingleBuffer)
+ wmFlush(c, hDC);
+
+ return TRUE;
+}
+
+//---------------------------------------------------------------------------
+
+PROC gldGetProcAddress_MesaSW(
+ LPCSTR a)
+{
+ int i;
+ PROC proc = NULL;
+
+ for (i=0; GLD_extList[i].proc; i++) {
+ if (!strcmp(a, GLD_extList[i].name)) {
+ proc = GLD_extList[i].proc;
+ break;
+ }
+ }
+
+ gldLogPrintf(GLDLOG_INFO, "GetProcAddress: %s (%s)", a, proc ? "OK" : "Failed");
+
+ return proc;
+}
+
+//---------------------------------------------------------------------------
+
+BOOL gldGetDisplayMode_MesaSW(
+ DGL_ctx *ctx,
+ GLD_displayMode *glddm)
+{
+ HDC hdcDesktop;
+
+ if (glddm == NULL)
+ return FALSE;
+
+ //
+ // A bit hacky... KeithH
+ //
+
+ hdcDesktop = GetDC(NULL);
+ glddm->Width = GetDeviceCaps(hdcDesktop, HORZRES);
+ glddm->Height = GetDeviceCaps(hdcDesktop, VERTRES);
+ glddm->BPP = GetDeviceCaps(hdcDesktop, BITSPIXEL);
+ glddm->Refresh = 0;
+ ReleaseDC(0, hdcDesktop);
+
+ return TRUE;
+}
+
+//---------------------------------------------------------------------------
+