use BCOPY macro on FreeBSD

[mesa.git] / src / mesa / main / depth.c

diff --git a/src/mesa/main/depth.c b/src/mesa/main/depth.c
index ba7f6248ab13ed24ed3c3087aef75798898107f9..88a0a1a69db3720aec153813942bf081e773db7e 100644 (file)
--- a/src/mesa/main/depth.c
+++ b/src/mesa/main/depth.c
@@ -1,4 +1,4 @@
-/* $Id: depth.c,v 1.13 2000/03/03 17:47:39 brianp Exp $ */
+/* $Id: depth.c,v 1.16 2000/04/04 00:54:23 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -382,7 +382,7 @@ depth_test_span16( GLcontext *ctx, GLuint n, GLint x, GLint y,
         }
         break;
       case GL_NEVER:
-         MEMSET(mask, 0, n * sizeof(GLubyte));
+         BZERO(mask, n * sizeof(GLubyte));
         break;
       default:
          gl_problem(ctx, "Bad depth func in depth_test_span16");
@@ -611,7 +611,7 @@ depth_test_span32( GLcontext *ctx, GLuint n, GLint x, GLint y,
         }
         break;
       case GL_NEVER:
-         MEMSET(mask, 0, n * sizeof(GLubyte));
+         BZERO(mask, n * sizeof(GLubyte));
         break;
       default:
          gl_problem(ctx, "Bad depth func in depth_test_span32");
@@ -894,7 +894,7 @@ software_depth_test_pixels16( GLcontext *ctx, GLuint n,
         break;
       case GL_NEVER:
         /* depth test never passes */
-         MEMSET(mask, 0, n * sizeof(GLubyte));
+         BZERO(mask, n * sizeof(GLubyte));
         break;
       default:
          gl_problem(ctx, "Bad depth func in software_depth_test_pixels");
@@ -1140,7 +1140,7 @@ software_depth_test_pixels32( GLcontext *ctx, GLuint n,
         break;
       case GL_NEVER:
         /* depth test never passes */
-         MEMSET(mask, 0, n * sizeof(GLubyte));
+         BZERO(mask, n * sizeof(GLubyte));
         break;
       default:
          gl_problem(ctx, "Bad depth func in software_depth_test_pixels");
@@ -1374,7 +1374,7 @@ hardware_depth_test_pixels( GLcontext *ctx, GLuint n, GLdepth zbuffer[],
         break;
       case GL_NEVER:
         /* depth test never passes */
-         MEMSET(mask, 0, n * sizeof(GLubyte));
+         BZERO(mask, n * sizeof(GLubyte));
         break;
       default:
          gl_problem(ctx, "Bad depth func in hardware_depth_test_pixels");
@@ -1459,7 +1459,7 @@ _mesa_read_depth_span_float( GLcontext* ctx,
    }
    else {
       /* no depth buffer */
-      MEMSET(depth, 0, n * sizeof(GLfloat));
+      BZERO(depth, n * sizeof(GLfloat));
    }
 }
 
@@ -1483,10 +1483,9 @@ _mesa_alloc_depth_buffer( GLcontext *ctx )
    if (ctx->DrawBuffer->UseSoftwareDepthBuffer) {
       GLint bytesPerValue;
 
-      if (ctx->DrawBuffer->Depth) {
-         FREE(ctx->DrawBuffer->Depth);
+      if (ctx->DrawBuffer->DepthBuffer) {
+         FREE(ctx->DrawBuffer->DepthBuffer);
          ctx->DrawBuffer->DepthBuffer = NULL;
-         ctx->DrawBuffer->Depth = NULL;
       }
 
       /* allocate new depth buffer, but don't initialize it */
@@ -1498,9 +1497,8 @@ _mesa_alloc_depth_buffer( GLcontext *ctx )
       ctx->DrawBuffer->DepthBuffer = MALLOC( ctx->DrawBuffer->Width
                                              * ctx->DrawBuffer->Height
                                              * bytesPerValue );
-      ctx->DrawBuffer->Depth = (GLdepth *) ctx->DrawBuffer->DepthBuffer;
 
-      if (!ctx->DrawBuffer->Depth) {
+      if (!ctx->DrawBuffer->DepthBuffer) {
          /* out of memory */
          ctx->Depth.Test = GL_FALSE;
          ctx->NewState |= NEW_RASTER_OPS;
@@ -1567,12 +1565,18 @@ _mesa_clear_depth_buffer( GLcontext *ctx )
       if (ctx->Visual->DepthBits <= 16) {
          const GLushort clearValue = (GLushort) (ctx->Depth.Clear * ctx->Visual->DepthMax);
          if ((clearValue & 0xff) == (clearValue >> 8)) {
-            /* lower and upper bytes of clear_value are same, use MEMSET */
-            MEMSET( ctx->DrawBuffer->DepthBuffer, clearValue & 0xff,
-                    2 * ctx->DrawBuffer->Width * ctx->DrawBuffer->Height);
+            if (clearValue == 0) {
+               BZERO(ctx->DrawBuffer->DepthBuffer,
+                     2*ctx->DrawBuffer->Width*ctx->DrawBuffer->Height);
+            }
+            else {
+               /* lower and upper bytes of clear_value are same, use MEMSET */
+               MEMSET( ctx->DrawBuffer->DepthBuffer, clearValue & 0xff,
+                       2 * ctx->DrawBuffer->Width * ctx->DrawBuffer->Height);
+            }
          }
          else {
-            GLushort *d = ctx->DrawBuffer->DepthBuffer;
+            GLushort *d = (GLushort *) ctx->DrawBuffer->DepthBuffer;
             GLint n = ctx->DrawBuffer->Width * ctx->DrawBuffer->Height;
             while (n >= 16) {
                d[0] = clearValue;    d[1] = clearValue;
@@ -1594,24 +1598,30 @@ _mesa_clear_depth_buffer( GLcontext *ctx )
       }
       else {
          /* >16 bit depth buffer */
-         GLuint *d = (GLuint *) ctx->DrawBuffer->DepthBuffer;
          const GLuint clearValue = (GLuint) (ctx->Depth.Clear * ctx->Visual->DepthMax);
-         GLint n = ctx->DrawBuffer->Width * ctx->DrawBuffer->Height;
-         while (n >= 16) {
-            d[0] = clearValue;    d[1] = clearValue;
-            d[2] = clearValue;    d[3] = clearValue;
-            d[4] = clearValue;    d[5] = clearValue;
-            d[6] = clearValue;    d[7] = clearValue;
-            d[8] = clearValue;    d[9] = clearValue;
-            d[10] = clearValue;   d[11] = clearValue;
-            d[12] = clearValue;   d[13] = clearValue;
-            d[14] = clearValue;   d[15] = clearValue;
-            d += 16;
-            n -= 16;
+         if (clearValue == 0) {
+            BZERO(ctx->DrawBuffer->DepthBuffer,
+                ctx->DrawBuffer->Width*ctx->DrawBuffer->Height*sizeof(GLuint));
          }
-         while (n > 0) {
-            *d++ = clearValue;
-            n--;
+         else {
+            GLint n = ctx->DrawBuffer->Width * ctx->DrawBuffer->Height;
+            GLuint *d = (GLuint *) ctx->DrawBuffer->DepthBuffer;
+            while (n >= 16) {
+               d[0] = clearValue;    d[1] = clearValue;
+               d[2] = clearValue;    d[3] = clearValue;
+               d[4] = clearValue;    d[5] = clearValue;
+               d[6] = clearValue;    d[7] = clearValue;
+               d[8] = clearValue;    d[9] = clearValue;
+               d[10] = clearValue;   d[11] = clearValue;
+               d[12] = clearValue;   d[13] = clearValue;
+               d[14] = clearValue;   d[15] = clearValue;
+               d += 16;
+               n -= 16;
+            }
+            while (n > 0) {
+               *d++ = clearValue;
+               n--;
+            }
          }
       }
    }