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-rw-r--r--docs/README.DJ16
-rw-r--r--include/GL/dmesa.h1
-rw-r--r--src/mesa/Makefile.DJ1
-rw-r--r--src/mesa/drivers/dos/dmesa.c105
-rw-r--r--src/mesa/drivers/dos/null.c222
-rw-r--r--src/mesa/drivers/dos/null.h41
-rw-r--r--src/mesa/drivers/dos/video.c8
-rw-r--r--src/mesa/drivers/glide/fxwgl.c134
8 files changed, 412 insertions, 116 deletions
diff --git a/docs/README.DJ b/docs/README.DJ
index ed7f8c858b..0ec3622a5a 100644
--- a/docs/README.DJ
+++ b/docs/README.DJ
@@ -111,7 +111,7 @@ FAQ:
Q) I made a simple application and it does nothing. It exits right away. Not
even a blank screen.
- A) The pure software drivers (VESA/VGA) support only double-buffered modes.
+ A) Pure software drivers (VESA/VGA/NUL) support only double-buffered modes.
A) Another weird "feature" is that buffer width must be multiple of 8 (I'm a
lazy programmer and I found that the easiest way to keep buffer handling
at peak performance ;-).
@@ -126,6 +126,13 @@ FAQ:
from `Mesa/src/glut/dos/Makefile.DJ' before (re)making GLUT. Beware, this
means you will never EVER be able to safely use `glut.dxe'!
+ Q) What is NUL driver good for, if I don't get any output at all?
+ A) For debugging. The NUL driver is very much like OSMesa. Everything is
+ done just the same as VESA/VGA drivers, only it doesn't touches your
+ video hardware. You can query the actual buffer by issuing:
+ DMesaGetIntegerv(DMESA_GET_BUFFER_ADDR, &buffer);
+ and dump it to a file.
+
Q) How do I query for a list of available video modes to choose as a visual?
A) This is an ugly hack, for which I'm sure I'll burn in hell.
First, query for a list of modes:
@@ -189,7 +196,11 @@ chosen in such a way that first window will fit. If you need high resolution
with small windows, set initial position far to the right (or way down); then
you can move them back to any position right before the main loop.
-The following environment variables can customize GLUT behaviour:
+
+
+Environment variables:
+~~~~~~~~~~~~~~~~~~~~~~
+ DMESA_NULDRV - (any value) force NUL driver
GLUT_FPS - print frames/second statistics to stderr
DMESA_GLUT_REFRESH - set vertical screen refresh rate (VESA3)
DMESA_GLUT_BPP - set default bits per pixel (VGA needs 8)
@@ -248,6 +259,7 @@ v1.5 (jan-2004)
x more changes to the 3dfx driver
v1.6 (???-2004)
+ + implemented NUL driver
+ added DMesaGetProcAddress and glutGetProcAddress
! fixed a horrible bug in VGA initialization routine
diff --git a/include/GL/dmesa.h b/include/GL/dmesa.h
index e67e54aad1..8d4c5bd645 100644
--- a/include/GL/dmesa.h
+++ b/include/GL/dmesa.h
@@ -141,6 +141,7 @@ void *DMesaGetProcAddress (const char *name);
#define DMESA_GET_SCREEN_SIZE 0x0100
#define DMESA_GET_DRIVER_CAPS 0x0200
#define DMESA_GET_VIDEO_MODES 0x0300
+#define DMESA_GET_BUFFER_ADDR 0x0400
#define DMESA_DRIVER_SWDB_BIT 0x1 /* software double-buffered */
#define DMESA_DRIVER_LLWO_BIT 0x2 /* lower-left window origin */
diff --git a/src/mesa/Makefile.DJ b/src/mesa/Makefile.DJ
index fdcc2ec546..56cf315c72 100644
--- a/src/mesa/Makefile.DJ
+++ b/src/mesa/Makefile.DJ
@@ -171,6 +171,7 @@ DRIVER_SOURCES += \
drivers/dos/vesa.c \
drivers/dos/blit.S \
drivers/dos/vga.c \
+ drivers/dos/null.c \
drivers/dos/dpmi.c
endif
diff --git a/src/mesa/drivers/dos/dmesa.c b/src/mesa/drivers/dos/dmesa.c
index c8fd91864b..e0744a88de 100644
--- a/src/mesa/drivers/dos/dmesa.c
+++ b/src/mesa/drivers/dos/dmesa.c
@@ -69,11 +69,8 @@
*/
struct dmesa_visual {
GLvisual gl_visual;
- GLboolean db_flag; /* double buffered? */
- GLboolean rgb_flag; /* RGB mode? */
GLboolean sw_alpha; /* use Mesa's alpha buffer? */
- GLuint depth; /* bits per pixel (1, 8, 24, etc) */
- int zbuffer; /* Z=buffer: 0=no, 1=SW, -1=HW */
+ int z_buffer; /* Z=buffer: 0=no, 1=SW, -1=HW */
};
/*
@@ -95,7 +92,7 @@ struct dmesa_buffer {
struct dmesa_context {
GLcontext gl_ctx; /* the core library context */
DMesaVisual visual;
- DMesaBuffer Buffer;
+ DMesaBuffer buffer;
GLuint ClearColor;
GLuint ClearIndex;
/* etc... */
@@ -107,10 +104,10 @@ struct dmesa_context {
/****************************************************************************
* Read/Write pixels
***************************************************************************/
-#define FLIP(y) (dmesa->Buffer->height - (y) - 1)
+#define FLIP(y) (dmesa->buffer->height - (y) - 1)
#define FLIP2(y) (_b_ - (y))
-#define DSTRIDE dmesa->Buffer->width
+#define DSTRIDE dmesa->buffer->width
/****************************************************************************
* RGB[A]
@@ -208,7 +205,7 @@ static void write_rgba_pixels (const GLcontext *ctx,
const GLubyte rgba[][4], const GLubyte mask[])
{
const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->buffer->height - 1;
if (mask) {
/* draw some pixels */
@@ -232,7 +229,7 @@ static void write_mono_rgba_pixels (const GLcontext *ctx,
const GLchan color[4], const GLubyte mask[])
{
const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1, rgba = vl_mixrgba(color);
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->buffer->height - 1, rgba = vl_mixrgba(color);
if (mask) {
/* draw some pixels */
@@ -256,7 +253,7 @@ static void read_rgba_pixels (const GLcontext *ctx,
GLubyte rgba[][4], const GLubyte mask[])
{
const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->buffer->height - 1;
if (mask) {
/* read some pixels */
@@ -371,7 +368,7 @@ static void write_index_pixels (const GLcontext *ctx,
const GLuint index[], const GLubyte mask[])
{
const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->buffer->height - 1;
if (mask) {
/* draw some pixels */
@@ -395,7 +392,7 @@ static void write_mono_index_pixels (const GLcontext *ctx,
GLuint colorIndex, const GLubyte mask[])
{
const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->buffer->height - 1;
if (mask) {
/* draw some pixels */
@@ -419,7 +416,7 @@ static void read_index_pixels (const GLcontext *ctx,
GLuint index[], const GLubyte mask[])
{
const DMesaContext dmesa = (DMesaContext)ctx;
- GLuint i, _w_ = DSTRIDE, _b_ = dmesa->Buffer->height - 1;
+ GLuint i, _w_ = DSTRIDE, _b_ = dmesa->buffer->height - 1;
if (mask) {
/* read some pixels */
@@ -455,8 +452,8 @@ static void read_index_pixels (const GLcontext *ctx,
#define SETUP_CODE \
const DMesaContext dmesa = (DMesaContext)ctx; \
- GLuint _b_ = dmesa->Buffer->height - 1; \
- GLuint _w_ = dmesa->Buffer->width; \
+ GLuint _b_ = dmesa->buffer->height - 1; \
+ GLuint _w_ = dmesa->buffer->width; \
GLuint rgb = vl_mixrgb(v2->color);
#define RENDER_SPAN(span) \
@@ -479,8 +476,8 @@ static void read_index_pixels (const GLcontext *ctx,
#define SETUP_CODE \
const DMesaContext dmesa = (DMesaContext)ctx; \
- GLuint _b_ = dmesa->Buffer->height - 1; \
- GLuint _w_ = dmesa->Buffer->width; \
+ GLuint _b_ = dmesa->buffer->height - 1; \
+ GLuint _w_ = dmesa->buffer->width; \
GLuint rgb = vl_mixrgb(v2->color);
#define RENDER_SPAN(span) \
@@ -507,8 +504,8 @@ static void read_index_pixels (const GLcontext *ctx,
#define SETUP_CODE \
const DMesaContext dmesa = (DMesaContext)ctx; \
- GLuint _b_ = dmesa->Buffer->height - 1; \
- GLuint _w_ = dmesa->Buffer->width;
+ GLuint _b_ = dmesa->buffer->height - 1; \
+ GLuint _w_ = dmesa->buffer->width;
#define RENDER_SPAN(span) \
GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
@@ -534,8 +531,8 @@ static void read_index_pixels (const GLcontext *ctx,
#define SETUP_CODE \
const DMesaContext dmesa = (DMesaContext)ctx; \
- GLuint _b_ = dmesa->Buffer->height - 1; \
- GLuint _w_ = dmesa->Buffer->width;
+ GLuint _b_ = dmesa->buffer->height - 1; \
+ GLuint _w_ = dmesa->buffer->width;
#define RENDER_SPAN(span) \
GLuint i, offset = FLIP2(span.y)*_w_ + span.x; \
@@ -616,8 +613,8 @@ static void dmesa_choose_tri (GLcontext *ctx)
#define SETUP_CODE \
const DMesaContext dmesa = (DMesaContext)ctx; \
- GLuint _b_ = dmesa->Buffer->height - 1; \
- GLuint _w_ = dmesa->Buffer->width; \
+ GLuint _b_ = dmesa->buffer->height - 1; \
+ GLuint _w_ = dmesa->buffer->width; \
GLuint rgb = vl_mixrgb(vert1->color);
#define PLOT(X,Y) vl_putpixel(FLIP2(Y) * _w_ + X, rgb);
@@ -638,8 +635,8 @@ static void dmesa_choose_tri (GLcontext *ctx)
#define SETUP_CODE \
const DMesaContext dmesa = (DMesaContext)ctx; \
- GLuint _b_ = dmesa->Buffer->height - 1; \
- GLuint _w_ = dmesa->Buffer->width; \
+ GLuint _b_ = dmesa->buffer->height - 1; \
+ GLuint _w_ = dmesa->buffer->width; \
GLuint rgb = vl_mixrgb(vert1->color);
#define PLOT(X,Y) \
@@ -751,7 +748,7 @@ static void clear (GLcontext *ctx, GLbitfield mask, GLboolean all,
/* we can't handle color or index masking */
if ((*colorMask == 0xffffffff) && (ctx->Color.IndexMask == 0xffffffff)) {
if (mask & DD_BACK_LEFT_BIT) {
- int color = c->visual->rgb_flag ? c->ClearColor : c->ClearIndex;
+ int color = ((GLvisual *)(c->visual))->rgbMode ? c->ClearColor : c->ClearIndex;
if (all) {
vl_clear(color);
@@ -958,10 +955,6 @@ DMesaVisual DMesaCreateVisual (GLint width,
GLint redBits, greenBits, blueBits, alphaBits, indexBits;
GLboolean sw_alpha;
- if (!dbFlag) {
- return NULL;
- }
-
alphaBits = 0;
if (!rgbFlag) {
@@ -1017,6 +1010,9 @@ DMesaVisual DMesaCreateVisual (GLint width,
alphaBits = alphaSize;
sw_alpha = (alphaBits > 0);
+ if (!dbFlag) {
+ return NULL;
+ }
if ((colDepth=vl_video_init(width, height, colDepth, rgbFlag, refresh)) <= 0) {
return NULL;
}
@@ -1040,12 +1036,8 @@ DMesaVisual DMesaCreateVisual (GLint width,
alphaBits?accumSize:0, /* accumAlpha */
1); /* numSamples */
- v->depth = colDepth;
- v->db_flag = dbFlag;
- v->rgb_flag = rgbFlag;
v->sw_alpha = sw_alpha;
-
- v->zbuffer = (depthSize > 0) ? 1 : 0;
+ v->z_buffer = (depthSize > 0) ? 1 : 0;
}
return v;
@@ -1113,7 +1105,7 @@ DMesaBuffer DMesaCreateBuffer (DMesaVisual visual,
if ((b=(DMesaBuffer)CALLOC_STRUCT(dmesa_buffer)) != NULL) {
_mesa_initialize_framebuffer((GLframebuffer *)b,
(GLvisual *)visual,
- visual->zbuffer == 1,
+ visual->z_buffer == 1,
((GLvisual *)visual)->stencilBits > 0,
((GLvisual *)visual)->accumRedBits > 0,
visual->sw_alpha);
@@ -1134,7 +1126,9 @@ DMesaBuffer DMesaCreateBuffer (DMesaVisual visual,
void DMesaDestroyBuffer (DMesaBuffer b)
{
#ifndef FX
- free(b->the_window);
+ if (b->the_window != NULL) {
+ free(b->the_window);
+ }
_mesa_destroy_framebuffer((GLframebuffer *)b);
#endif
}
@@ -1179,7 +1173,7 @@ DMesaContext DMesaCreateContext (DMesaVisual visual,
tnl = TNL_CONTEXT(c);
tnl->Driver.RunPipeline = _tnl_run_pipeline;
/* swrast setup */
- if (visual->rgb_flag) dmesa_register_swrast_functions(c);
+ if (((GLvisual *)visual)->rgbMode) dmesa_register_swrast_functions(c);
dmesa_init_pointers(c);
_swsetup_Wakeup(c);
}
@@ -1212,19 +1206,16 @@ GLboolean DMesaMoveBuffer (GLint xpos, GLint ypos)
{
#ifndef FX
GET_CURRENT_CONTEXT(ctx);
- DMesaBuffer b = ((DMesaContext)ctx)->Buffer;
+ DMesaBuffer b = ((DMesaContext)ctx)->buffer;
- if (vl_sync_buffer(&b->the_window, xpos, ypos, b->width, b->height) != 0) {
- return GL_FALSE;
- } else {
+ if (vl_sync_buffer(&b->the_window, xpos, ypos, b->width, b->height) == 0) {
b->xpos = xpos;
b->ypos = ypos;
return GL_TRUE;
}
+#endif
-#else
return GL_FALSE;
-#endif
}
@@ -1233,19 +1224,16 @@ GLboolean DMesaResizeBuffer (GLint width, GLint height)
{
#ifndef FX
GET_CURRENT_CONTEXT(ctx);
- DMesaBuffer b = ((DMesaContext)ctx)->Buffer;
+ DMesaBuffer b = ((DMesaContext)ctx)->buffer;
- if (vl_sync_buffer(&b->the_window, b->xpos, b->ypos, width, height) != 0) {
- return GL_FALSE;
- } else {
+ if (vl_sync_buffer(&b->the_window, b->xpos, b->ypos, width, height) == 0) {
b->width = width;
b->height = height;
return GL_TRUE;
}
+#endif
-#else
return GL_FALSE;
-#endif
}
@@ -1261,7 +1249,7 @@ GLboolean DMesaMakeCurrent (DMesaContext c, DMesaBuffer b)
return GL_FALSE;
}
- c->Buffer = b;
+ c->buffer = b;
_mesa_make_current((GLcontext *)c, (GLframebuffer *)b);
if (((GLcontext *)c)->Viewport.Width == 0) {
@@ -1391,6 +1379,21 @@ int DMesaGetIntegerv (GLenum pname, GLint *params)
return n;
}
#endif
+ case DMESA_GET_BUFFER_ADDR:
+ #ifndef FX
+ {
+ DMesaContext c = (DMesaContext)DMesaGetCurrentContext();
+ if (c != NULL) {
+ DMesaBuffer b = c->buffer;
+ if (b != NULL) {
+ params[0] = (GLint)b->the_window;
+ }
+ }
+ }
+ #else
+ return -1;
+ #endif
+ break;
default:
return -1;
}
diff --git a/src/mesa/drivers/dos/null.c b/src/mesa/drivers/dos/null.c
new file mode 100644
index 0000000000..62e2c942ef
--- /dev/null
+++ b/src/mesa/drivers/dos/null.c
@@ -0,0 +1,222 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 4.1
+ *
+ * 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 v1.6 for Mesa
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : dborca@users.sourceforge.net
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#include <stdlib.h>
+#include <sys/segments.h>
+
+#include "video.h"
+#include "null.h"
+
+
+
+static vl_mode *modes;
+
+#define null_color_precision 8
+
+
+
+
+static void null_blit_nop (void)
+{
+}
+
+
+
+/* Desc: Attempts to detect VGA, check video modes and create selectors.
+ *
+ * In : -
+ * Out : mode array
+ *
+ * Note: -
+ */
+static vl_mode *null_init (void)
+{
+ static int m[][2] = {
+ {320, 200},
+ {320, 240},
+ {400, 300},
+ {512, 384},
+ {640, 400},
+ {640, 480},
+ {800, 600},
+ {1024, 768},
+ {1280, 1024},
+ {1600, 1200}
+ };
+ static int b[] = {
+ 8,
+ 15,
+ 16,
+ 24,
+ 32
+ };
+
+ unsigned int i, j, k;
+
+ if (modes == NULL) {
+ modes = malloc(sizeof(vl_mode) *
+ (1 + (sizeof(m) / sizeof(m[0]) * sizeof(b) / sizeof(b[0]))));
+
+ if (modes != NULL) {
+ for (k = 0, i = 0; i < sizeof(m) / sizeof(m[0]); i++) {
+ for (j = 0; j < sizeof(b) / sizeof(b[0]); j++, k++) {
+ modes[k].xres = m[i][0];
+ modes[k].yres = m[i][1];
+ modes[k].bpp = b[j];
+ modes[k].mode = 0x4000;
+ modes[k].scanlen = m[i][0] * ((b[j] + 7) / 8);
+ modes[k].sel = -1;
+ modes[k].gran = -1;
+ }
+ }
+ modes[k].xres = -1;
+ modes[k].yres = -1;
+ modes[k].bpp = -1;
+ modes[k].mode = 0xffff;
+ modes[k].scanlen = -1;
+ modes[k].sel = -1;
+ modes[k].gran = -1;
+ }
+ }
+
+ return modes;
+}
+
+
+
+/* Desc: Frees all resources allocated by VGA init code.
+ *
+ * In : -
+ * Out : -
+ *
+ * Note: -
+ */
+static void null_fini (void)
+{
+}
+
+
+
+/* Desc: Attempts to enter specified video mode.
+ *
+ * In : ptr to mode structure, refresh rate
+ * Out : 0 if success
+ *
+ * Note: -
+ */
+static int null_entermode (vl_mode *p, int refresh)
+{
+ NUL.blit = null_blit_nop;
+
+ return 0;
+
+ (void)(p && refresh); /* silence compiler warning */
+}
+
+
+
+/* Desc: Restores to the mode prior to first call to null_entermode.
+ *
+ * In : -
+ * Out : -
+ *
+ * Note: -
+ */
+static void null_restore (void)
+{
+}
+
+
+
+/* Desc: set one palette entry
+ *
+ * In : color index, R, G, B
+ * Out : -
+ *
+ * Note: uses integer values
+ */
+static void null_setCI_i (int index, int red, int green, int blue)
+{
+ (void)(index && red && green && blue); /* silence compiler warning */
+}
+
+
+
+/* Desc: set one palette entry
+ *
+ * In : color index, R, G, B
+ * Out : -
+ *
+ * Note: uses normalized values
+ */
+static void null_setCI_f (int index, float red, float green, float blue)
+{
+ float max = (1 << null_color_precision) - 1;
+
+ null_setCI_i(index, (int)(red * max), (int)(green * max), (int)(blue * max));
+}
+
+
+
+/* Desc: state retrieval
+ *
+ * In : parameter name, ptr to storage
+ * Out : 0 if request successfully processed
+ *
+ * Note: -
+ */
+static int null_get (int pname, int *params)
+{
+ switch (pname) {
+ default:
+ params[0] = params[0]; /* silence compiler warning */
+ return -1;
+ }
+ return 0;
+}
+
+
+
+/*
+ * the driver
+ */
+vl_driver NUL = {
+ null_init,
+ null_entermode,
+ NULL,
+ null_setCI_f,
+ null_setCI_i,
+ null_get,
+ null_restore,
+ null_fini
+};
diff --git a/src/mesa/drivers/dos/null.h b/src/mesa/drivers/dos/null.h
new file mode 100644
index 0000000000..a38accc857
--- /dev/null
+++ b/src/mesa/drivers/dos/null.h
@@ -0,0 +1,41 @@
+/*
+ * 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 v1.6 for Mesa
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : dborca@yahoo.com
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#ifndef NULL_H_included
+#define NULL_H_included
+
+#include "internal.h"
+
+extern vl_driver NUL;
+
+#endif
diff --git a/src/mesa/drivers/dos/video.c b/src/mesa/drivers/dos/video.c
index 41903ebe79..d3774e7c3e 100644
--- a/src/mesa/drivers/dos/video.c
+++ b/src/mesa/drivers/dos/video.c
@@ -38,6 +38,7 @@
#include "internal.h"
#include "vesa.h"
#include "vga.h"
+#include "null.h"
#include "video.h"
@@ -428,6 +429,13 @@ static vl_mode *v_init_hw (void)
static vl_mode *q = NULL;
if (q == NULL) {
+ /* are we forced to NUL driver? */
+ if (getenv("DMESA_NULDRV")) {
+ if ((q = NUL.init()) != NULL) {
+ drv = &NUL;
+ }
+ return q;
+ }
/* initialize hardware */
if ((q = VESA.init()) != NULL) {
drv = &VESA;
diff --git a/src/mesa/drivers/glide/fxwgl.c b/src/mesa/drivers/glide/fxwgl.c
index c17560d724..f8450b1b01 100644
--- a/src/mesa/drivers/glide/fxwgl.c
+++ b/src/mesa/drivers/glide/fxwgl.c
@@ -572,12 +572,12 @@ wglUseFontBitmaps_FX(HDC fontDevice, DWORD firstChar, DWORD numChars,
bitDevice = CreateCompatibleDC(fontDevice);
- // Swap fore and back colors so the bitmap has the right polarity
+ /* Swap fore and back colors so the bitmap has the right polarity */
tempColor = GetBkColor(bitDevice);
SetBkColor(bitDevice, GetTextColor(bitDevice));
SetTextColor(bitDevice, tempColor);
- // Place chars based on base line
+ /* Place chars based on base line */
SetTextAlign(bitDevice, TA_BASELINE);
for (i = 0; i < (int)numChars; i++) {
@@ -588,34 +588,34 @@ wglUseFontBitmaps_FX(HDC fontDevice, DWORD firstChar, DWORD numChars,
HGDIOBJ origBmap;
unsigned char *bmap;
- curChar = (char)(i + firstChar); // [koolsmoky] explicit cast
+ curChar = (char)(i + firstChar); /* [koolsmoky] explicit cast */
- // Find how high/wide this character is
+ /* Find how high/wide this character is */
GetTextExtentPoint32(bitDevice, &curChar, 1, &size);
- // Create the output bitmap
+ /* Create the output bitmap */
charWidth = size.cx;
charHeight = size.cy;
- bmapWidth = ((charWidth + 31) / 32) * 32; // Round up to the next multiple of 32 bits
+ bmapWidth = ((charWidth + 31) / 32) * 32; /* Round up to the next multiple of 32 bits */
bmapHeight = charHeight;
bitObject = CreateCompatibleBitmap(bitDevice, bmapWidth, bmapHeight);
- //VERIFY(bitObject);
+ /*VERIFY(bitObject);*/
- // Assign the output bitmap to the device
+ /* Assign the output bitmap to the device */
origBmap = SelectObject(bitDevice, bitObject);
PatBlt(bitDevice, 0, 0, bmapWidth, bmapHeight, BLACKNESS);
- // Use our source font on the device
+ /* Use our source font on the device */
SelectObject(bitDevice, GetCurrentObject(fontDevice, OBJ_FONT));
- // Draw the character
+ /* Draw the character */
TextOut(bitDevice, 0, metric.tmAscent, &curChar, 1);
- // Unselect our bmap object
+ /* Unselect our bmap object */
SelectObject(bitDevice, origBmap);
- // Convert the display dependant representation to a 1 bit deep DIB
+ /* Convert the display dependant representation to a 1 bit deep DIB */
numBytes = (bmapWidth * bmapHeight) / 8;
bmap = MALLOC(numBytes);
dibInfo->bmiHeader.biWidth = bmapWidth;
@@ -623,21 +623,21 @@ wglUseFontBitmaps_FX(HDC fontDevice, DWORD firstChar, DWORD numChars,
res = GetDIBits(bitDevice, bitObject, 0, bmapHeight, bmap,
dibInfo, DIB_RGB_COLORS);
- // Create the GL object
+ /* Create the GL object */
glNewList(i + listBase, GL_COMPILE);
glBitmap(bmapWidth, bmapHeight, 0.0, metric.tmDescent,
charWidth, 0.0, bmap);
glEndList();
- // CheckGL();
+ /* CheckGL(); */
- // Destroy the bmap object
+ /* Destroy the bmap object */
DeleteObject(bitObject);
- // Deallocate the bitmap data
+ /* Deallocate the bitmap data */
FREE(bmap);
}
- // Destroy the DC
+ /* Destroy the DC */
DeleteDC(bitDevice);
FREE(dibInfo);
@@ -695,87 +695,95 @@ GLAPI int GLAPIENTRY
wglChoosePixelFormat(HDC hdc, const PIXELFORMATDESCRIPTOR * ppfd)
{
int i, best = -1, qt_valid_pix;
+ PIXELFORMATDESCRIPTOR pfd = *ppfd;
#if 0
FILE *pix_file;
pix_file = fopen("pix_log.txt", "a");
if (pix_file) {
fprintf(pix_file, "wglChoosePixelFormat\n");
- fprintf(pix_file, "nSize = %d\n",ppfd->nSize);
- fprintf(pix_file, "nVersion = %d\n",ppfd->nVersion);
- fprintf(pix_file, "dwFlags = %d\n",ppfd->dwFlags);
- fprintf(pix_file, "iPixelType = %d\n",ppfd->iPixelType);
- fprintf(pix_file, "cColorBits = %d\n",ppfd->cColorBits);
- fprintf(pix_file, "cRedBits = %d\n",ppfd->cRedBits);
- fprintf(pix_file, "cRedShift = %d\n",ppfd->cRedShift);
- fprintf(pix_file, "cGreenBits = %d\n",ppfd->cGreenBits);
- fprintf(pix_file, "cGreenShift = %d\n",ppfd->cGreenShift);
- fprintf(pix_file, "cBlueBits = %d\n",ppfd->cBlueBits);
- fprintf(pix_file, "cBlueShift = %d\n",ppfd->cBlueShift);
- fprintf(pix_file, "cAlphaBits = %d\n",ppfd->cAlphaBits);
- fprintf(pix_file, "cAlphaShift = %d\n",ppfd->cAlphaShift);
- fprintf(pix_file, "cAccumBits = %d\n",ppfd->cAccumBits);
- fprintf(pix_file, "cAccumRedBits = %d\n",ppfd->cAccumRedBits);
- fprintf(pix_file, "cAccumGreenBits = %d\n",ppfd->cAccumGreenBits);
- fprintf(pix_file, "cAccumBlueBits = %d\n",ppfd->cAccumBlueBits);
- fprintf(pix_file, "cAccumAlphaBits = %d\n",ppfd->cAccumAlphaBits);
- fprintf(pix_file, "cDepthBits = %d\n",ppfd->cDepthBits);
- fprintf(pix_file, "cStencilBits = %d\n",ppfd->cStencilBits);
- fprintf(pix_file, "cAuxBuffers = %d\n",ppfd->cAuxBuffers);
- fprintf(pix_file, "iLayerType = %d\n",ppfd->iLayerType);
- fprintf(pix_file, "bReserved = %d\n",ppfd->bReserved);
- fprintf(pix_file, "dwLayerMask = %d\n",ppfd->dwLayerMask);
- fprintf(pix_file, "dwVisibleMask = %d\n",ppfd->dwVisibleMask);
- fprintf(pix_file, "dwDamageMask = %d\n",ppfd->dwDamageMask);
+ fprintf(pix_file, "nSize = %d\n",pfd.nSize);
+ fprintf(pix_file, "nVersion = %d\n",pfd.nVersion);
+ fprintf(pix_file, "dwFlags = %d\n",pfd.dwFlags);
+ fprintf(pix_file, "iPixelType = %d\n",pfd.iPixelType);
+ fprintf(pix_file, "cColorBits = %d\n",pfd.cColorBits);
+ fprintf(pix_file, "cRedBits = %d\n",pfd.cRedBits);
+ fprintf(pix_file, "cRedShift = %d\n",pfd.cRedShift);
+ fprintf(pix_file, "cGreenBits = %d\n",pfd.cGreenBits);
+ fprintf(pix_file, "cGreenShift = %d\n",pfd.cGreenShift);
+ fprintf(pix_file, "cBlueBits = %d\n",pfd.cBlueBits);
+ fprintf(pix_file, "cBlueShift = %d\n",pfd.cBlueShift);
+ fprintf(pix_file, "cAlphaBits = %d\n",pfd.cAlphaBits);
+ fprintf(pix_file, "cAlphaShift = %d\n",pfd.cAlphaShift);
+ fprintf(pix_file, "cAccumBits = %d\n",pfd.cAccumBits);
+ fprintf(pix_file, "cAccumRedBits = %d\n",pfd.cAccumRedBits);
+ fprintf(pix_file, "cAccumGreenBits = %d\n",pfd.cAccumGreenBits);
+ fprintf(pix_file, "cAccumBlueBits = %d\n",pfd.cAccumBlueBits);
+ fprintf(pix_file, "cAccumAlphaBits = %d\n",pfd.cAccumAlphaBits);
+ fprintf(pix_file, "cDepthBits = %d\n",pfd.cDepthBits);
+ fprintf(pix_file, "cStencilBits = %d\n",pfd.cStencilBits);
+ fprintf(pix_file, "cAuxBuffers = %d\n",pfd.cAuxBuffers);
+ fprintf(pix_file, "iLayerType = %d\n",pfd.iLayerType);
+ fprintf(pix_file, "bReserved = %d\n",pfd.bReserved);
+ fprintf(pix_file, "dwLayerMask = %d\n",pfd.dwLayerMask);
+ fprintf(pix_file, "dwVisibleMask = %d\n",pfd.dwVisibleMask);
+ fprintf(pix_file, "dwDamageMask = %d\n",pfd.dwDamageMask);
fclose(pix_file);
}
#endif
-#if 1 || QUAKE2
- if (ppfd->cColorBits == 24 && ppfd->cDepthBits == 32) {
- ppfd->cColorBits = 16;
- ppfd->cDepthBits = 16;
+ qt_valid_pix = pfd_tablen();
+
+#if 1 || QUAKE2 || GORE
+ /* QUAKE2: 24+32 */
+ /* GORE : 24+16 */
+ if (pfd.cColorBits == 24) {
+ /* the first 2 entries are 16bit */
+ pfd.cColorBits = (qt_valid_pix > 2) ? 32 : 16;
+ }
+ if (pfd.cColorBits == 32) {
+ pfd.cDepthBits = 24;
+ } else if (pfd.cColorBits == 16) {
+ pfd.cDepthBits = 16;
}
#endif
- qt_valid_pix = pfd_tablen();
-
- if (ppfd->nSize != sizeof(PIXELFORMATDESCRIPTOR) || ppfd->nVersion != 1) {
+ if (pfd.nSize != sizeof(PIXELFORMATDESCRIPTOR) || pfd.nVersion != 1) {
SetLastError(0);
return (0);
}
for (i = 0; i < qt_valid_pix; i++) {
- if (ppfd->cColorBits > 0 && pix[i].pfd.cColorBits != ppfd->cColorBits)
+ if (pfd.cColorBits > 0 && pix[i].pfd.cColorBits != pfd.cColorBits)
continue;
- if ((ppfd->dwFlags & PFD_DRAW_TO_WINDOW)
+ if ((pfd.dwFlags & PFD_DRAW_TO_WINDOW)
&& !(pix[i].pfd.dwFlags & PFD_DRAW_TO_WINDOW)) continue;
- if ((ppfd->dwFlags & PFD_DRAW_TO_BITMAP)
+ if ((pfd.dwFlags & PFD_DRAW_TO_BITMAP)
&& !(pix[i].pfd.dwFlags & PFD_DRAW_TO_BITMAP)) continue;
- if ((ppfd->dwFlags & PFD_SUPPORT_GDI)
+ if ((pfd.dwFlags & PFD_SUPPORT_GDI)
&& !(pix[i].pfd.dwFlags & PFD_SUPPORT_GDI)) continue;
- if ((ppfd->dwFlags & PFD_SUPPORT_OPENGL)
+ if ((pfd.dwFlags & PFD_SUPPORT_OPENGL)
&& !(pix[i].pfd.dwFlags & PFD_SUPPORT_OPENGL)) continue;
- if (!(ppfd->dwFlags & PFD_DOUBLEBUFFER_DONTCARE)
- && ((ppfd->dwFlags & PFD_DOUBLEBUFFER) !=
+ if (!(pfd.dwFlags & PFD_DOUBLEBUFFER_DONTCARE)
+ && ((pfd.dwFlags & PFD_DOUBLEBUFFER) !=
(pix[i].pfd.dwFlags & PFD_DOUBLEBUFFER))) continue;
- if (!(ppfd->dwFlags & PFD_STEREO_DONTCARE)
- && ((ppfd->dwFlags & PFD_STEREO) !=
+ if (!(pfd.dwFlags & PFD_STEREO_DONTCARE)
+ && ((pfd.dwFlags & PFD_STEREO) !=
(pix[i].pfd.dwFlags & PFD_STEREO))) continue;
- if (ppfd->cDepthBits > 0 && pix[i].pfd.cDepthBits == 0)
+ if (pfd.cDepthBits > 0 && pix[i].pfd.cDepthBits == 0)
continue; /* need depth buffer */
- if (ppfd->cAlphaBits > 0 && pix[i].pfd.cAlphaBits == 0)
+ if (pfd.cAlphaBits > 0 && pix[i].pfd.cAlphaBits == 0)
continue; /* need alpha buffer */
#if 0
- if ((ppfd->cColorBits == 32) && (ppfd->cStencilBits > 0 && pix[i].pfd.cStencilBits == 0))
+ if ((pfd.cColorBits == 32) && (pfd.cStencilBits > 0 && pix[i].pfd.cStencilBits == 0))
continue; /* need stencil */
#endif
- if (ppfd->iPixelType == pix[i].pfd.iPixelType) {
+ if (pfd.iPixelType == pix[i].pfd.iPixelType) {
best = i + 1;
break;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-20 17:10:00 +0000