-/* $Id: s_depth.c,v 1.5 2001/02/08 15:57:01 brianp Exp $ */
+/* $Id: s_depth.c,v 1.9 2001/03/19 02:25:36 keithw Exp $ */
/*
* Mesa 3-D graphics library
- * Version: 3.3
- *
- * Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
- *
+ * Version: 3.5
+ *
+ * Copyright (C) 1999-2001 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
BZERO(mask, n * sizeof(GLubyte));
break;
default:
- gl_problem(ctx, "Bad depth func in depth_test_span16");
+ _mesa_problem(ctx, "Bad depth func in depth_test_span16");
}
return passed;
BZERO(mask, n * sizeof(GLubyte));
break;
default:
- gl_problem(ctx, "Bad depth func in depth_test_span32");
+ _mesa_problem(ctx, "Bad depth func in depth_test_span32");
}
return passed;
_mesa_depth_test_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
const GLdepth z[], GLubyte mask[] )
{
- if (ctx->Driver.ReadDepthSpan) {
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
+ if (swrast->Driver.ReadDepthSpan) {
/* hardware-based depth buffer */
GLdepth zbuffer[MAX_WIDTH];
GLuint passed;
- (*ctx->Driver.ReadDepthSpan)(ctx, n, x, y, zbuffer);
+ (*swrast->Driver.ReadDepthSpan)(ctx, n, x, y, zbuffer);
passed = depth_test_span32(ctx, n, x, y, zbuffer, z, mask);
- assert(ctx->Driver.WriteDepthSpan);
- (*ctx->Driver.WriteDepthSpan)(ctx, n, x, y, zbuffer, mask);
+ assert(swrast->Driver.WriteDepthSpan);
+ (*swrast->Driver.WriteDepthSpan)(ctx, n, x, y, zbuffer, mask);
return passed;
}
else {
BZERO(mask, n * sizeof(GLubyte));
break;
default:
- gl_problem(ctx, "Bad depth func in software_depth_test_pixels");
+ _mesa_problem(ctx, "Bad depth func in software_depth_test_pixels");
}
}
BZERO(mask, n * sizeof(GLubyte));
break;
default:
- gl_problem(ctx, "Bad depth func in software_depth_test_pixels");
+ _mesa_problem(ctx, "Bad depth func in software_depth_test_pixels");
}
}
BZERO(mask, n * sizeof(GLubyte));
break;
default:
- gl_problem(ctx, "Bad depth func in hardware_depth_test_pixels");
+ _mesa_problem(ctx, "Bad depth func in hardware_depth_test_pixels");
}
}
GLuint n, const GLint x[], const GLint y[],
const GLdepth z[], GLubyte mask[] )
{
- if (ctx->Driver.ReadDepthPixels) {
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
+ if (swrast->Driver.ReadDepthPixels) {
/* read depth values from hardware Z buffer */
GLdepth zbuffer[PB_SIZE];
- (*ctx->Driver.ReadDepthPixels)(ctx, n, x, y, zbuffer);
+ (*swrast->Driver.ReadDepthPixels)(ctx, n, x, y, zbuffer);
hardware_depth_test_pixels( ctx, n, zbuffer, z, mask );
/* update hardware Z buffer with new values */
- assert(ctx->Driver.WriteDepthPixels);
- (*ctx->Driver.WriteDepthPixels)(ctx, n, x, y, zbuffer, mask );
+ assert(swrast->Driver.WriteDepthPixels);
+ (*swrast->Driver.WriteDepthPixels)(ctx, n, x, y, zbuffer, mask );
}
else {
/* software depth testing */
_mesa_read_depth_span( GLcontext *ctx,
GLint n, GLint x, GLint y, GLdepth depth[] )
{
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
+
if (y < 0 || y >= ctx->DrawBuffer->Height ||
x + (GLint) n <= 0 || x >= ctx->DrawBuffer->Width) {
/* span is completely outside framebuffer */
/* read from software depth buffer */
if (ctx->Visual.depthBits <= 16) {
const GLushort *zptr = Z_ADDRESS16( ctx, x, y );
- GLuint i;
+ GLint i;
for (i = 0; i < n; i++) {
depth[i] = zptr[i];
}
}
else {
const GLuint *zptr = Z_ADDRESS32( ctx, x, y );
- GLuint i;
+ GLint i;
for (i = 0; i < n; i++) {
depth[i] = zptr[i];
}
}
}
- else if (ctx->Driver.ReadDepthSpan) {
+ else if (swrast->Driver.ReadDepthSpan) {
/* read from hardware depth buffer */
- (*ctx->Driver.ReadDepthSpan)( ctx, n, x, y, depth );
+ (*swrast->Driver.ReadDepthSpan)( ctx, n, x, y, depth );
}
else {
/* no depth buffer */
_mesa_read_depth_span_float( GLcontext *ctx,
GLint n, GLint x, GLint y, GLfloat depth[] )
{
+ SWcontext *swrast = SWRAST_CONTEXT(ctx);
const GLfloat scale = 1.0F / ctx->DepthMaxF;
if (y < 0 || y >= ctx->DrawBuffer->Height ||
/* read from software depth buffer */
if (ctx->Visual.depthBits <= 16) {
const GLushort *zptr = Z_ADDRESS16( ctx, x, y );
- GLuint i;
+ GLint i;
for (i = 0; i < n; i++) {
depth[i] = (GLfloat) zptr[i] * scale;
}
}
else {
const GLuint *zptr = Z_ADDRESS32( ctx, x, y );
- GLuint i;
+ GLint i;
for (i = 0; i < n; i++) {
depth[i] = (GLfloat) zptr[i] * scale;
}
}
}
- else if (ctx->Driver.ReadDepthSpan) {
+ else if (swrast->Driver.ReadDepthSpan) {
/* read from hardware depth buffer */
GLdepth d[MAX_WIDTH];
- GLuint i;
+ GLint i;
assert(n <= MAX_WIDTH);
- (*ctx->Driver.ReadDepthSpan)( ctx, n, x, y, d );
+ (*swrast->Driver.ReadDepthSpan)( ctx, n, x, y, d );
for (i = 0; i < n; i++) {
depth[i] = d[i] * scale;
}
/* out of memory */
ctx->Depth.Test = GL_FALSE;
ctx->NewState |= _NEW_DEPTH;
- gl_error( ctx, GL_OUT_OF_MEMORY, "Couldn't allocate depth buffer" );
+ _mesa_error( ctx, GL_OUT_OF_MEMORY, "Couldn't allocate depth buffer" );
}
}
}
projects / mesa.git / blobdiff