/*
* Mesa 3-D graphics library
- * Version: 7.2.1
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
*
* 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
- * THE AUTHORS 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.
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
*/
GLfloat min_f, max_f;
GLuint i;
- if (ctx->Viewport.Near < ctx->Viewport.Far) {
- min_f = ctx->Viewport.Near;
- max_f = ctx->Viewport.Far;
+ if (ctx->ViewportArray[0].Near < ctx->ViewportArray[0].Far) {
+ min_f = ctx->ViewportArray[0].Near;
+ max_f = ctx->ViewportArray[0].Far;
} else {
- min_f = ctx->Viewport.Far;
- max_f = ctx->Viewport.Near;
+ min_f = ctx->ViewportArray[0].Far;
+ max_f = ctx->ViewportArray[0].Near;
}
/* Convert floating point values in [0,1] to device Z coordinates in
const GLubyte *map = _swrast_pixel_address(rb, 0, 0);
GLuint i;
- if (rb->Format == MESA_FORMAT_Z32) {
+ if (rb->Format == MESA_FORMAT_Z_UNORM32) {
const GLint rowStride = srb->RowStride;
for (i = 0; i < count; i++) {
if (x[i] >= 0 && y[i] >= 0 && x[i] < w && y[i] < h) {
GLubyte *map = _swrast_pixel_address(rb, 0, 0);
GLuint i;
- if (rb->Format == MESA_FORMAT_Z32) {
+ if (rb->Format == MESA_FORMAT_Z_UNORM32) {
const GLint rowStride = srb->RowStride;
for (i = 0; i < count; i++) {
if (mask[i] && x[i] >= 0 && y[i] >= 0 && x[i] < w && y[i] < h) {
else
zStart = _swrast_pixel_address(rb, span->x, span->y);
- if (rb->Format == MESA_FORMAT_Z16 && !(span->arrayMask & SPAN_XY)) {
+ if (rb->Format == MESA_FORMAT_Z_UNORM16 && !(span->arrayMask & SPAN_XY)) {
/* directly read/write row of 16-bit Z values */
zBufferVals = zStart;
ztest16 = GL_TRUE;
}
- else if (rb->Format == MESA_FORMAT_Z32 && !(span->arrayMask & SPAN_XY)) {
+ else if (rb->Format == MESA_FORMAT_Z_UNORM32 && !(span->arrayMask & SPAN_XY)) {
/* directly read/write row of 32-bit Z values */
zBufferVals = zStart;
}
struct gl_framebuffer *fb = ctx->DrawBuffer;
struct gl_renderbuffer *rb = fb->Attachment[BUFFER_DEPTH].Renderbuffer;
GLubyte *zStart;
- GLuint zMin = (GLuint) (ctx->Depth.BoundsMin * fb->_DepthMaxF + 0.5F);
- GLuint zMax = (GLuint) (ctx->Depth.BoundsMax * fb->_DepthMaxF + 0.5F);
+ GLuint zMin = (GLuint)((double)ctx->Depth.BoundsMin * 0xffffffff);
+ GLuint zMax = (GLuint)((double)ctx->Depth.BoundsMax * 0xffffffff);
GLubyte *mask = span->array->mask;
const GLuint count = span->end;
GLuint i;
else
zStart = _swrast_pixel_address(rb, span->x, span->y);
- if (rb->Format == MESA_FORMAT_Z32 && !(span->arrayMask & SPAN_XY)) {
+ if (rb->Format == MESA_FORMAT_Z_UNORM32 && !(span->arrayMask & SPAN_XY)) {
/* directly access 32-bit values in the depth buffer */
zBufferVals = (const GLuint *) zStart;
}
else {
+ /* Round the bounds to the precision of the zbuffer. */
+ if (rb->Format == MESA_FORMAT_Z_UNORM16) {
+ zMin = (zMin & 0xffff0000) | (zMin >> 16);
+ zMax = (zMax & 0xffff0000) | (zMax >> 16);
+ } else {
+ /* 24 bits */
+ zMin = (zMin & 0xffffff00) | (zMin >> 24);
+ zMax = (zMax & 0xffffff00) | (zMax >> 24);
+ }
+
/* unpack Z values into a temporary array */
if (span->arrayMask & SPAN_XY) {
get_z32_values(ctx, rb, count, span->array->x, span->array->y,
height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
mapMode = GL_MAP_WRITE_BIT;
- if (rb->Format == MESA_FORMAT_S8_Z24 ||
- rb->Format == MESA_FORMAT_X8_Z24 ||
- rb->Format == MESA_FORMAT_Z24_S8 ||
- rb->Format == MESA_FORMAT_Z24_X8) {
+ if (rb->Format == MESA_FORMAT_Z24_UNORM_S8_UINT ||
+ rb->Format == MESA_FORMAT_Z24_UNORM_X8_UINT ||
+ rb->Format == MESA_FORMAT_S8_UINT_Z24_UNORM ||
+ rb->Format == MESA_FORMAT_X8_UINT_Z24_UNORM) {
mapMode |= GL_MAP_READ_BIT;
}
ctx->Driver.MapRenderbuffer(ctx, rb, x, y, width, height,
- mapMode, &map, &rowStride);
+ mapMode, &map, &rowStride,
+ ctx->DrawBuffer->FlipY);
if (!map) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glClear(depth)");
return;
}
switch (rb->Format) {
- case MESA_FORMAT_Z16:
+ case MESA_FORMAT_Z_UNORM16:
{
GLfloat clear = (GLfloat) ctx->Depth.Clear;
GLushort clearVal = 0;
}
}
break;
- case MESA_FORMAT_Z32:
- case MESA_FORMAT_Z32_FLOAT:
+ case MESA_FORMAT_Z_UNORM32:
+ case MESA_FORMAT_Z_FLOAT32:
{
GLfloat clear = (GLfloat) ctx->Depth.Clear;
GLuint clearVal = 0;
}
}
break;
- case MESA_FORMAT_S8_Z24:
- case MESA_FORMAT_X8_Z24:
- case MESA_FORMAT_Z24_S8:
- case MESA_FORMAT_Z24_X8:
+ case MESA_FORMAT_Z24_UNORM_S8_UINT:
+ case MESA_FORMAT_Z24_UNORM_X8_UINT:
+ case MESA_FORMAT_S8_UINT_Z24_UNORM:
+ case MESA_FORMAT_X8_UINT_Z24_UNORM:
{
GLfloat clear = (GLfloat) ctx->Depth.Clear;
GLuint clearVal = 0;
GLuint mask;
- if (rb->Format == MESA_FORMAT_S8_Z24 ||
- rb->Format == MESA_FORMAT_X8_Z24)
+ if (rb->Format == MESA_FORMAT_Z24_UNORM_S8_UINT ||
+ rb->Format == MESA_FORMAT_Z24_UNORM_X8_UINT)
mask = 0xff000000;
else
mask = 0xff;
}
break;
- case MESA_FORMAT_Z32_FLOAT_X24S8:
+ case MESA_FORMAT_Z32_FLOAT_S8X24_UINT:
/* XXX untested */
{
GLfloat clearVal = (GLfloat) ctx->Depth.Clear;
}
ctx->Driver.MapRenderbuffer(ctx, rb, x, y, width, height,
- mapMode, &map, &rowStride);
+ mapMode, &map, &rowStride,
+ ctx->DrawBuffer->FlipY);
if (!map) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glClear(depth+stencil)");
return;
}
switch (rb->Format) {
- case MESA_FORMAT_S8_Z24:
- case MESA_FORMAT_Z24_S8:
+ case MESA_FORMAT_Z24_UNORM_S8_UINT:
+ case MESA_FORMAT_S8_UINT_Z24_UNORM:
{
GLfloat zClear = (GLfloat) ctx->Depth.Clear;
GLuint clear = 0, mask;
_mesa_pack_float_z_row(rb->Format, 1, &zClear, &clear);
- if (rb->Format == MESA_FORMAT_S8_Z24) {
+ if (rb->Format == MESA_FORMAT_Z24_UNORM_S8_UINT) {
mask = ((~writeMask) & 0xff) << 24;
clear |= (ctx->Stencil.Clear & writeMask & 0xff) << 24;
}
}
}
break;
- case MESA_FORMAT_Z32_FLOAT_X24S8:
+ case MESA_FORMAT_Z32_FLOAT_S8X24_UINT:
/* XXX untested */
{
const GLfloat zClear = (GLfloat) ctx->Depth.Clear;
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