DOS driver updates from Daniel Borca

1 files changed, 68 insertions, 105 deletions

diff --git a/src/mesa/drivers/dos/dmesa.c b/src/mesa/drivers/dos/dmesa.c
index 5ab323d33a..454b891c08 100644
--- a/src/mesa/drivers/dos/dmesa.c
+++ b/src/mesa/drivers/dos/dmesa.c
@@ -23,7 +23,7 @@
  */

 

 /*

- * DOS/DJGPP device driver v0.2 for Mesa 4.0

+ * DOS/DJGPP device driver v0.3 for Mesa 4.0

  *

  *  Copyright (C) 2002 - Borca Daniel

  *  Email : dborca@yahoo.com

@@ -66,10 +66,9 @@
  */

 struct dmesa_visual {

    GLvisual *gl_visual;

+   GLboolean db_flag;           /* double buffered? */

    GLboolean rgb_flag;          /* RGB mode? */

    GLuint depth;                /* bits per pixel (1, 8, 24, etc) */

-

-   GLint caps;                  /* video mode capabilities */

 };

 

 /*

@@ -82,12 +81,7 @@ struct dmesa_buffer {
 

    int xpos, ypos;              /* position */

    int width, height;           /* size in pixels */

-   int pitch, len;              /* number of bytes in a line, then total */

-   int cwidth;                  /* scan width */

-

-   int caps;                    /* video mode capabilities */

-

-   void (*tri_rgb_flat) ();

+   int bwidth, len;             /* bytes in a line, then total */

 };

 

 /*

@@ -126,7 +120,7 @@ static void write_rgba_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
  void *b = c->Buffer->the_window;

  GLuint i, offset;

 

- offset = c->Buffer->cwidth * FLIP(y) + x;

+ offset = c->Buffer->width * FLIP(y) + x;

  if (mask) {

     /* draw some pixels */

     for (i=0; i<n; i++, offset++) {

@@ -149,7 +143,7 @@ static void write_rgb_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
  void *b = c->Buffer->the_window;

  GLuint i, offset;

 

- offset = c->Buffer->cwidth * FLIP(y) + x;

+ offset = c->Buffer->width * FLIP(y) + x;

  if (mask) {

     /* draw some pixels */

     for (i=0; i<n; i++, offset++) {

@@ -173,7 +167,7 @@ static void write_mono_rgba_span (const GLcontext *ctx,
  void *b = c->Buffer->the_window;

  GLuint i, offset, rgba = vl_mixrgba(color);

 

- offset = c->Buffer->cwidth * FLIP(y) + x;

+ offset = c->Buffer->width * FLIP(y) + x;

  if (mask) {

     /* draw some pixels */

     for (i=0; i<n; i++, offset++) {

@@ -196,7 +190,7 @@ static void read_rgba_span (const GLcontext *ctx, GLuint n, GLint x, GLint y,
  void *b = c->Buffer->the_window;

  GLuint i, offset;

 

- offset = c->Buffer->cwidth * FLIP(y) + x;

+ offset = c->Buffer->width * FLIP(y) + x;

  /* read all pixels */

  for (i=0; i<n; i++, offset++) {

      vl_getrgba(b, offset, rgba[i]);

@@ -209,7 +203,7 @@ static void write_rgba_pixels (const GLcontext *ctx,
 {

  DMesaContext c = (DMesaContext)ctx->DriverCtx;

  void *b = c->Buffer->the_window;

- GLuint i, w = c->Buffer->cwidth, h = c->Buffer->height;

+ GLuint i, w = c->Buffer->width, h = c->Buffer->height;

 

  if (mask) {

     /* draw some pixels */

@@ -232,7 +226,7 @@ static void write_mono_rgba_pixels (const GLcontext *ctx,
 {

  DMesaContext c = (DMesaContext)ctx->DriverCtx;

  void *b = c->Buffer->the_window;

- GLuint i, w = c->Buffer->cwidth, h = c->Buffer->height, rgba = vl_mixrgba(color);

+ GLuint i, w = c->Buffer->width, h = c->Buffer->height, rgba = vl_mixrgba(color);

 

  if (mask) {

     /* draw some pixels */

@@ -255,7 +249,7 @@ static void read_rgba_pixels (const GLcontext *ctx,
 {

  DMesaContext c = (DMesaContext)ctx->DriverCtx;

  void *b = c->Buffer->the_window;

- GLuint i, w = c->Buffer->cwidth, h = c->Buffer->height;

+ GLuint i, w = c->Buffer->width, h = c->Buffer->height;

 

  if (mask) {

     /* read some pixels */

@@ -290,24 +284,17 @@ static void tri_rgb_flat (GLcontext *ctx,
 {

  DMesaContext c = (DMesaContext)ctx->DriverCtx;

  void *b = c->Buffer->the_window;

- GLuint w = c->Buffer->cwidth, h = c->Buffer->height;

+ GLuint w = c->Buffer->width, h = c->Buffer->height;

 

- if (c->Buffer->tri_rgb_flat) {

-    c->Buffer->tri_rgb_flat(IROUND(v0->win[0]), IROUND(FLIP2(v0->win[1])),

-                            IROUND(v1->win[0]), IROUND(FLIP2(v1->win[1])),

-                            IROUND(v2->win[0]), IROUND(FLIP2(v2->win[1])),

-                            vl_mixrgb(v2->color));

- } else {

 #define SETUP_CODE GLuint rgb = vl_mixrgb(v2->color);

 

 #define RENDER_SPAN(span)					\

-   GLuint i, offset = FLIP2(span.y)*w + span.x;			\

-   for (i = 0; i < span.count; i++, offset++) {			\

-       vl_putpixel(b, offset, rgb);				\

-   }

+ GLuint i, offset = FLIP2(span.y)*w + span.x;			\

+ for (i = 0; i < span.count; i++, offset++) {			\

+     vl_putpixel(b, offset, rgb);				\

+ }

 

 #include "swrast/s_tritemp.h"

- }

 }

 

 

@@ -322,22 +309,22 @@ static void tri_rgb_flat_z (GLcontext *ctx,
 {

  DMesaContext c = (DMesaContext)ctx->DriverCtx;

  void *b = c->Buffer->the_window;

- GLuint w = c->Buffer->cwidth, h = c->Buffer->height;

+ GLuint w = c->Buffer->width, h = c->Buffer->height;

 

 #define INTERP_Z 1

 #define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE

 #define SETUP_CODE GLuint rgb = vl_mixrgb(v2->color);

 

 #define RENDER_SPAN(span)					\

-   GLuint i, offset = FLIP2(span.y)*w + span.x;			\

-   for (i = 0; i < span.count; i++, offset++) {			\

-       const DEPTH_TYPE z = FixedToDepth(span.z);		\

-       if (z < zRow[i]) {					\

-          vl_putpixel(b, offset, rgb);				\

-          zRow[i] = z;						\

-       }							\

-       span.z += span.zStep;					\

-   }

+ GLuint i, offset = FLIP2(span.y)*w + span.x;			\

+ for (i = 0; i < span.count; i++, offset++) {			\

+     const DEPTH_TYPE z = FixedToDepth(span.z);			\

+     if (z < zRow[i]) {						\

+        vl_putpixel(b, offset, rgb);				\

+        zRow[i] = z;						\

+     }								\

+     span.z += span.zStep;					\

+ }

 

 #include "swrast/s_tritemp.h"

 }

@@ -354,21 +341,21 @@ static void tri_rgb_smooth (GLcontext *ctx,
 {

  DMesaContext c = (DMesaContext)ctx->DriverCtx;

  void *b = c->Buffer->the_window;

- GLuint w = c->Buffer->cwidth, h = c->Buffer->height;

+ GLuint w = c->Buffer->width, h = c->Buffer->height;

 

 #define INTERP_RGB 1

 #define RENDER_SPAN(span)					\

-   GLuint i, offset = FLIP2(span.y)*w + span.x;			\

-   for (i = 0; i < span.count; i++, offset++) {			\

-       unsigned char rgb[3];					\

-       rgb[0] = FixedToInt(span.red);				\

-       rgb[1] = FixedToInt(span.green);				\

-       rgb[2] = FixedToInt(span.blue);				\

-       vl_putpixel(b, offset, vl_mixrgb(rgb));			\

-       span.red += span.redStep;				\

-       span.green += span.greenStep;				\

-       span.blue += span.blueStep;				\

-   }

+ GLuint i, offset = FLIP2(span.y)*w + span.x;			\

+ for (i = 0; i < span.count; i++, offset++) {			\

+     unsigned char rgb[3];					\

+     rgb[0] = FixedToInt(span.red);				\

+     rgb[1] = FixedToInt(span.green);				\

+     rgb[2] = FixedToInt(span.blue);				\

+     vl_putpixel(b, offset, vl_mixrgb(rgb));			\

+     span.red += span.redStep;					\

+     span.green += span.greenStep;				\

+     span.blue += span.blueStep;				\

+ }

 

 #include "swrast/s_tritemp.h"

 }

@@ -385,29 +372,29 @@ static void tri_rgb_smooth_z (GLcontext *ctx,
 {

  DMesaContext c = (DMesaContext)ctx->DriverCtx;

  void *b = c->Buffer->the_window;

- GLuint w = c->Buffer->cwidth, h = c->Buffer->height;

+ GLuint w = c->Buffer->width, h = c->Buffer->height;

 

 #define INTERP_Z 1

 #define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE

 #define INTERP_RGB 1

 

 #define RENDER_SPAN(span)					\

-   GLuint i, offset = FLIP2(span.y)*w + span.x;			\

-   for (i = 0; i < span.count; i++, offset++) {			\

-       const DEPTH_TYPE z = FixedToDepth(span.z);		\

-       if (z < zRow[i]) {					\

-          unsigned char rgb[3];					\

-          rgb[0] = FixedToInt(span.red);			\

-          rgb[1] = FixedToInt(span.green);			\

-          rgb[2] = FixedToInt(span.blue);			\

-          vl_putpixel(b, offset, vl_mixrgb(rgb));		\

-          zRow[i] = z;						\

-       }							\

-       span.red += span.redStep;				\

-       span.green += span.greenStep;				\

-       span.blue += span.blueStep;				\

-       span.z += span.zStep;					\

-   }

+ GLuint i, offset = FLIP2(span.y)*w + span.x;			\

+ for (i = 0; i < span.count; i++, offset++) {			\

+     const DEPTH_TYPE z = FixedToDepth(span.z);			\

+     if (z < zRow[i]) {						\

+        unsigned char rgb[3];					\

+        rgb[0] = FixedToInt(span.red);				\

+        rgb[1] = FixedToInt(span.green);			\

+        rgb[2] = FixedToInt(span.blue);				\

+        vl_putpixel(b, offset, vl_mixrgb(rgb));			\

+        zRow[i] = z;						\

+     }								\

+     span.red += span.redStep;					\

+     span.green += span.greenStep;				\

+     span.blue += span.blueStep;				\

+     span.z += span.zStep;					\

+ }

 

 #include "swrast/s_tritemp.h"

 }

@@ -505,26 +492,12 @@ static void clear (GLcontext *ctx, GLbitfield mask, GLboolean all,
  if (*colorMask==0xffffffff) {

     if (mask & DD_BACK_LEFT_BIT) {

        if (all) {

-          if CHECK_SOFTDB(b->caps) {

-             vl_clear_virtual(b->the_window, b->len, c->ClearColor);

-          } else {

-             vl_clear(b->the_window, 0, 0, b->width, b->height, c->ClearColor);

-          }

+          vl_clear(b->the_window, b->len, c->ClearColor);

        } else {

-          vl_clear(b->the_window, x, y, width, height, c->ClearColor);

+          vl_rect(b->the_window, x, y, width, height, c->ClearColor);

        }

        mask &= ~DD_BACK_LEFT_BIT;

     }

-    if (mask & DD_FRONT_LEFT_BIT) {

-       if (all) {

-          x = 0;

-          y = 0;

-          width = b->width;

-          height = b->height;

-       }

-       vl_clear(b->the_window, x, y, width, height, c->ClearColor);

-       mask &= ~DD_FRONT_LEFT_BIT;

-    }

  }

 

  if (mask) {

@@ -553,7 +526,7 @@ static void set_read_buffer (GLcontext *ctx, GLframebuffer *buffer,
  */

 static GLboolean set_draw_buffer (GLcontext *ctx, GLenum mode)

 {

- if (mode==GL_BACK_LEFT || mode==GL_FRONT_LEFT) {

+ if (mode==GL_BACK_LEFT) {

     return GL_TRUE;

  } else {

     return GL_FALSE;

@@ -756,8 +729,10 @@ DMesaVisual DMesaCreateVisual (GLint width, GLint height, GLint colDepth,
 {

  DMesaVisual v;

  GLint redBits, greenBits, blueBits, alphaBits;

- GLint caps;

 

+ if (!dbFlag) {

+    return NULL;

+ }

  alphaBits = 0;

  switch (colDepth) {

         case 15:

@@ -781,11 +756,7 @@ DMesaVisual DMesaCreateVisual (GLint width, GLint height, GLint colDepth,
              return NULL;

  }

 

- caps = 0;

- if (!dbFlag) {

-    caps |= VL_SINGLE;

- }

- if (vl_video_init(width, height, colDepth, &caps)!=0) {

+ if (vl_video_init(width, height, colDepth)!=0) {

     return NULL;

  }

 

@@ -808,7 +779,7 @@ DMesaVisual DMesaCreateVisual (GLint width, GLint height, GLint colDepth,
                                        1);			/* numSamples */

 

     v->depth = colDepth;

-    v->caps = caps;

+    v->db_flag = dbFlag;

  }

 

  return v;

@@ -818,7 +789,7 @@ DMesaVisual DMesaCreateVisual (GLint width, GLint height, GLint colDepth,
 

 void DMesaDestroyVisual (DMesaVisual v)

 {

- vl_video_exit();

+ vl_video_exit(!0);

  _mesa_destroy_visual(v->gl_visual);

  free(v);

 }

@@ -841,12 +812,9 @@ DMesaBuffer DMesaCreateBuffer (DMesaVisual visual,
     b->xpos = xpos;

     b->ypos = ypos;

     b->width = width;

+    b->bwidth = width * ((visual->depth+7)/8);

     b->height = height;

-    b->caps = visual->caps;

-    b->pitch = b->width*((visual->depth+7)/8);

-    b->len = b->pitch*b->height;

-

-    b->tri_rgb_flat = vl_getprim(TRI_RGB_FLAT);

+    b->len = b->bwidth * b->height;

  }

 

  return b;

@@ -856,9 +824,7 @@ DMesaBuffer DMesaCreateBuffer (DMesaVisual visual,
 

 void DMesaDestroyBuffer (DMesaBuffer b)

 {

- if CHECK_SOFTDB(b->caps) {

-    free(b->the_window);

- }

+ free(b->the_window);

  _mesa_destroy_framebuffer(b->gl_buffer);

  free(b);

 }

@@ -911,13 +877,10 @@ void DMesaDestroyContext (DMesaContext c)
 GLboolean DMesaMakeCurrent (DMesaContext c, DMesaBuffer b)

 {

  if (c&&b) {

-    void *ptr = vl_sync_buffer(b->the_window, b->xpos, b->ypos, b->width, b->height, &b->cwidth);

-

-    if (b->cwidth==-1) {

+    if ((b->the_window=vl_sync_buffer(b->the_window, b->xpos, b->ypos, b->width, b->height))==NULL) {

        return GL_FALSE;

     }

 

-    b->the_window = ptr;

     c->Buffer = b;

 

     dmesa_update_state(c->gl_ctx, 0);

@@ -939,5 +902,5 @@ GLboolean DMesaMakeCurrent (DMesaContext c, DMesaBuffer b)
 void DMesaSwapBuffers (DMesaBuffer b)

 {

  /* copy/swap back buffer to front if applicable */

- b->the_window = vl_flip(b->the_window, b->width, b->height, b->pitch);

+ vl_flip(b->the_window, b->bwidth, b->height);

 }