DOS driver update

1 files changed, 42 insertions, 19 deletions

diff --git a/src/mesa/drivers/dos/dmesa.c b/src/mesa/drivers/dos/dmesa.c
index 454b891c08b..559204fc53d 100644
--- a/src/mesa/drivers/dos/dmesa.c
+++ b/src/mesa/drivers/dos/dmesa.c
@@ -23,7 +23,7 @@
  */

 

 /*

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

+ * DOS/DJGPP device driver v1.0 for Mesa 4.0

  *

  *  Copyright (C) 2002 - Borca Daniel

  *  Email : [email protected]

@@ -76,9 +76,10 @@ struct dmesa_visual {
  * Add system-specific fields to it.

  */

 struct dmesa_buffer {

-   GLframebuffer *gl_buffer;    /* The depth, stencil, accum, etc buffers */

+   GLframebuffer gl_buffer;     /* The depth, stencil, accum, etc buffers */

    void *the_window;            /* your window handle, etc */

 

+   int bypp;                    /* bytes per pixel */

    int xpos, ypos;              /* position */

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

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

@@ -540,12 +541,12 @@ static GLboolean set_draw_buffer (GLcontext *ctx, GLenum mode)
  * If anything special has to been done when the buffer/window is

  * resized, do it now.

  */

-static void get_buffer_size (GLcontext *ctx, GLuint *width, GLuint *height)

+static void get_buffer_size (GLframebuffer *buffer, GLuint *width, GLuint *height)

 {

- DMesaContext c = (DMesaContext)ctx->DriverCtx;

+ DMesaBuffer b = (DMesaBuffer)buffer;

 

- *width  = c->Buffer->width;

- *height = c->Buffer->height;

+ *width  = b->width;

+ *height = b->height;

 }

 

 

@@ -554,7 +555,7 @@ static const GLubyte* get_string (GLcontext *ctx, GLenum name)
 {

  switch (name) {

         case GL_RENDERER:

-             return (const GLubyte *)"DOS Mesa";

+             return (const GLubyte *)"Mesa DOS\0DJGPP port (c) Borca Daniel 31-mar-2002";

         default:

              return NULL;

  }

@@ -636,7 +637,7 @@ void dmesa_init_pointers (GLcontext *ctx)
  ctx->Driver.Accum = _swrast_Accum;

  ctx->Driver.Bitmap = _swrast_Bitmap;

  ctx->Driver.Clear = clear;

- ctx->Driver.ResizeBuffersMESA = _swrast_alloc_buffers;

+ ctx->Driver.ResizeBuffers = _swrast_alloc_buffers;

  ctx->Driver.CopyPixels = _swrast_CopyPixels;

  ctx->Driver.DrawPixels = _swrast_DrawPixels;

  ctx->Driver.ReadPixels = _swrast_ReadPixels;

@@ -804,17 +805,17 @@ DMesaBuffer DMesaCreateBuffer (DMesaVisual visual,
 

  if ((b=(DMesaBuffer)calloc(1, sizeof(struct dmesa_buffer)))!=NULL) {

 

-    b->gl_buffer = _mesa_create_framebuffer(visual->gl_visual,

-                                            visual->gl_visual->depthBits > 0,

-                                            visual->gl_visual->stencilBits > 0,

-                                            visual->gl_visual->accumRedBits > 0,

-                                            visual->gl_visual->alphaBits > 0);

+    _mesa_initialize_framebuffer(&b->gl_buffer,

+                                 visual->gl_visual,

+                                 visual->gl_visual->depthBits > 0,

+                                 visual->gl_visual->stencilBits > 0,

+                                 visual->gl_visual->accumRedBits > 0,

+                                 visual->gl_visual->alphaBits > 0);

     b->xpos = xpos;

     b->ypos = ypos;

     b->width = width;

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

     b->height = height;

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

+    b->bypp = (visual->depth+7)/8;

  }

 

  return b;

@@ -825,7 +826,7 @@ DMesaBuffer DMesaCreateBuffer (DMesaVisual visual,
 void DMesaDestroyBuffer (DMesaBuffer b)

 {

  free(b->the_window);

- _mesa_destroy_framebuffer(b->gl_buffer);

+ _mesa_free_framebuffer_data(&b->gl_buffer);

  free(b);

 }

 

@@ -871,23 +872,45 @@ void DMesaDestroyContext (DMesaContext c)
 

 

 

+GLboolean DMesaViewport (DMesaBuffer b,

+                         GLint xpos, GLint ypos,

+                         GLint width, GLint height)

+{

+ void *new_window;

+

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

+    return GL_FALSE;

+ } else {

+    b->the_window = new_window;

+    b->xpos = xpos;

+    b->ypos = ypos;

+    b->width = width;

+    b->height = height;

+    b->bwidth = width * b->bypp;

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

+    return GL_TRUE;

+ }

+}

+

+

+

 /*

  * Make the specified context and buffer the current one.

  */

 GLboolean DMesaMakeCurrent (DMesaContext c, DMesaBuffer b)

 {

  if (c&&b) {

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

+    if (!DMesaViewport(b, b->xpos, b->ypos, b->width, b->height)) {

        return GL_FALSE;

     }

 

     c->Buffer = b;

 

     dmesa_update_state(c->gl_ctx, 0);

-    _mesa_make_current(c->gl_ctx, b->gl_buffer);

+    _mesa_make_current(c->gl_ctx, &b->gl_buffer);

     if (c->gl_ctx->Viewport.Width==0) {

        /* initialize viewport to window size */

-       _mesa_Viewport(0, 0, c->Buffer->width, c->Buffer->height);

+       _mesa_Viewport(0, 0, b->width, b->height);

     }

  } else {

     /* Detach */