+++ /dev/null
-/*
- * Mesa 3-D graphics library
- * Version: 6.5
- *
- * Copyright (C) 1999-2006 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
- * BRIAN PAUL 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.
- */
-
-#include "glheader.h"
-#include "imports.h"
-#include "context.h"
-#include "formats.h"
-#include "mtypes.h"
-#include "depthstencil.h"
-#include "renderbuffer.h"
-
-
-/**
- * Adaptor/wrappers for GL_DEPTH_STENCIL renderbuffers.
- *
- * The problem with a GL_DEPTH_STENCIL renderbuffer is that sometimes we
- * want to treat it as a stencil buffer, other times we want to treat it
- * as a depth/z buffer and still other times when we want to treat it as
- * a combined Z+stencil buffer! That implies we need three different sets
- * of Get/Put functions.
- *
- * We solve this by wrapping the Z24_S8 or S8_Z24 renderbuffer with depth and
- * stencil adaptors, each with the right kind of depth/stencil Get/Put functions.
- */
-
-
-static void *
-nop_get_pointer(struct gl_context *ctx, struct gl_renderbuffer *rb, GLint x, GLint y)
-{
- (void) ctx;
- (void) rb;
- (void) x;
- (void) y;
- return NULL;
-}
-
-
-/**
- * Delete a depth or stencil wrapper renderbuffer.
- */
-static void
-delete_wrapper(struct gl_renderbuffer *rb)
-{
- ASSERT(rb->Format == MESA_FORMAT_S8 ||
- rb->Format == MESA_FORMAT_X8_Z24 ||
- rb->Format == MESA_FORMAT_Z32_FLOAT);
- _mesa_reference_renderbuffer(&rb->Wrapped, NULL);
- free(rb);
-}
-
-
-/**
- * Realloc storage for wrapper.
- */
-static GLboolean
-alloc_wrapper_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,
- GLenum internalFormat, GLuint width, GLuint height)
-{
- /* just pass this on to the wrapped renderbuffer */
- struct gl_renderbuffer *dsrb = rb->Wrapped;
- GLboolean retVal;
-
- (void) internalFormat;
-
- ASSERT(dsrb->Format == MESA_FORMAT_Z24_S8 ||
- dsrb->Format == MESA_FORMAT_Z24_X8 ||
- dsrb->Format == MESA_FORMAT_S8_Z24 ||
- dsrb->Format == MESA_FORMAT_X8_Z24);
-
- retVal = dsrb->AllocStorage(ctx, dsrb, dsrb->InternalFormat, width, height);
- if (retVal) {
- rb->Width = width;
- rb->Height = height;
- rb->RowStride = dsrb->RowStride;
- }
- return retVal;
-}
-
-
-
-
-/*======================================================================
- * Depth wrapper around depth/stencil renderbuffer
- */
-
-static void
-get_row_z24(struct gl_context *ctx, struct gl_renderbuffer *z24rb, GLuint count,
- GLint x, GLint y, void *values)
-{
- struct gl_renderbuffer *dsrb = z24rb->Wrapped;
- GLuint temp[MAX_WIDTH], i;
- GLuint *dst = (GLuint *) values;
- const GLuint *src = (const GLuint *) dsrb->GetPointer(ctx, dsrb, x, y);
- ASSERT(z24rb->DataType == GL_UNSIGNED_INT);
- ASSERT(dsrb->DataType == GL_UNSIGNED_INT_24_8_EXT);
- if (!src) {
- dsrb->GetRow(ctx, dsrb, count, x, y, temp);
- src = temp;
- }
- if (dsrb->Format == MESA_FORMAT_Z24_S8) {
- for (i = 0; i < count; i++) {
- dst[i] = src[i] >> 8;
- }
- }
- else {
- assert(dsrb->Format == MESA_FORMAT_S8_Z24);
- for (i = 0; i < count; i++) {
- dst[i] = src[i] & 0xffffff;
- }
- }
-}
-
-static void
-get_values_z24(struct gl_context *ctx, struct gl_renderbuffer *z24rb, GLuint count,
- const GLint x[], const GLint y[], void *values)
-{
- struct gl_renderbuffer *dsrb = z24rb->Wrapped;
- GLuint temp[MAX_WIDTH], i;
- GLuint *dst = (GLuint *) values;
- ASSERT(z24rb->DataType == GL_UNSIGNED_INT);
- ASSERT(dsrb->DataType == GL_UNSIGNED_INT_24_8_EXT);
- ASSERT(count <= MAX_WIDTH);
- /* don't bother trying direct access */
- dsrb->GetValues(ctx, dsrb, count, x, y, temp);
- if (dsrb->Format == MESA_FORMAT_Z24_S8) {
- for (i = 0; i < count; i++) {
- dst[i] = temp[i] >> 8;
- }
- }
- else {
- assert(dsrb->Format == MESA_FORMAT_S8_Z24);
- for (i = 0; i < count; i++) {
- dst[i] = temp[i] & 0xffffff;
- }
- }
-}
-
-static void
-put_row_z24(struct gl_context *ctx, struct gl_renderbuffer *z24rb, GLuint count,
- GLint x, GLint y, const void *values, const GLubyte *mask)
-{
- struct gl_renderbuffer *dsrb = z24rb->Wrapped;
- const GLuint *src = (const GLuint *) values;
- GLuint *dst = (GLuint *) dsrb->GetPointer(ctx, dsrb, x, y);
- ASSERT(z24rb->DataType == GL_UNSIGNED_INT);
- ASSERT(dsrb->DataType == GL_UNSIGNED_INT_24_8_EXT);
- if (dst) {
- /* direct access */
- GLuint i;
- if (dsrb->Format == MESA_FORMAT_Z24_S8) {
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- dst[i] = (src[i] << 8) | (dst[i] & 0xff);
- }
- }
- }
- else {
- assert(dsrb->Format == MESA_FORMAT_S8_Z24);
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- dst[i] = (src[i] & 0xffffff) | (dst[i] & 0xff000000);
- }
- }
- }
- }
- else {
- /* get, modify, put */
- GLuint temp[MAX_WIDTH], i;
- dsrb->GetRow(ctx, dsrb, count, x, y, temp);
- if (dsrb->Format == MESA_FORMAT_Z24_S8) {
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i] = (src[i] << 8) | (temp[i] & 0xff);
- }
- }
- }
- else {
- assert(dsrb->Format == MESA_FORMAT_S8_Z24);
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i] = (src[i] & 0xffffff) | (temp[i] & 0xff000000);
- }
- }
- }
- dsrb->PutRow(ctx, dsrb, count, x, y, temp, mask);
- }
-}
-
-static void
-put_mono_row_z24(struct gl_context *ctx, struct gl_renderbuffer *z24rb, GLuint count,
- GLint x, GLint y, const void *value, const GLubyte *mask)
-{
- struct gl_renderbuffer *dsrb = z24rb->Wrapped;
- GLuint *dst = (GLuint *) dsrb->GetPointer(ctx, dsrb, x, y);
- ASSERT(z24rb->DataType == GL_UNSIGNED_INT);
- ASSERT(dsrb->DataType == GL_UNSIGNED_INT_24_8_EXT);
- if (dst) {
- /* direct access */
- GLuint i;
- if (dsrb->Format == MESA_FORMAT_Z24_S8) {
- const GLuint shiftedVal = *((GLuint *) value) << 8;
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- dst[i] = shiftedVal | (dst[i] & 0xff);
- }
- }
- }
- else {
- const GLuint shiftedVal = *((GLuint *) value);
- assert(dsrb->Format == MESA_FORMAT_S8_Z24);
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- dst[i] = shiftedVal | (dst[i] & 0xff000000);
- }
- }
- }
- }
- else {
- /* get, modify, put */
- GLuint temp[MAX_WIDTH], i;
- dsrb->GetRow(ctx, dsrb, count, x, y, temp);
- if (dsrb->Format == MESA_FORMAT_Z24_S8) {
- const GLuint shiftedVal = *((GLuint *) value) << 8;
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i] = shiftedVal | (temp[i] & 0xff);
- }
- }
- }
- else {
- const GLuint shiftedVal = *((GLuint *) value);
- assert(dsrb->Format == MESA_FORMAT_S8_Z24);
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i] = shiftedVal | (temp[i] & 0xff000000);
- }
- }
- }
- dsrb->PutRow(ctx, dsrb, count, x, y, temp, mask);
- }
-}
-
-static void
-put_values_z24(struct gl_context *ctx, struct gl_renderbuffer *z24rb, GLuint count,
- const GLint x[], const GLint y[],
- const void *values, const GLubyte *mask)
-{
- struct gl_renderbuffer *dsrb = z24rb->Wrapped;
- const GLuint *src = (const GLuint *) values;
- ASSERT(z24rb->DataType == GL_UNSIGNED_INT);
- ASSERT(dsrb->DataType == GL_UNSIGNED_INT_24_8_EXT);
- if (dsrb->GetPointer(ctx, dsrb, 0, 0)) {
- /* direct access */
- GLuint i;
- if (dsrb->Format == MESA_FORMAT_Z24_S8) {
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- GLuint *dst = (GLuint *) dsrb->GetPointer(ctx, dsrb, x[i], y[i]);
- *dst = (src[i] << 8) | (*dst & 0xff);
- }
- }
- }
- else {
- assert(dsrb->Format == MESA_FORMAT_S8_Z24);
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- GLuint *dst = (GLuint *) dsrb->GetPointer(ctx, dsrb, x[i], y[i]);
- *dst = (src[i] & 0xffffff) | (*dst & 0xff000000);
- }
- }
- }
- }
- else {
- /* get, modify, put */
- GLuint temp[MAX_WIDTH], i;
- dsrb->GetValues(ctx, dsrb, count, x, y, temp);
- if (dsrb->Format == MESA_FORMAT_Z24_S8) {
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i] = (src[i] << 8) | (temp[i] & 0xff);
- }
- }
- }
- else {
- assert(dsrb->Format == MESA_FORMAT_S8_Z24);
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i] = (src[i] & 0xffffff) | (temp[i] & 0xff000000);
- }
- }
- }
- dsrb->PutValues(ctx, dsrb, count, x, y, temp, mask);
- }
-}
-
-static void
-put_mono_values_z24(struct gl_context *ctx, struct gl_renderbuffer *z24rb,
- GLuint count, const GLint x[], const GLint y[],
- const void *value, const GLubyte *mask)
-{
- struct gl_renderbuffer *dsrb = z24rb->Wrapped;
- GLuint temp[MAX_WIDTH], i;
- /* get, modify, put */
- dsrb->GetValues(ctx, dsrb, count, x, y, temp);
- if (dsrb->Format == MESA_FORMAT_Z24_S8) {
- const GLuint shiftedVal = *((GLuint *) value) << 8;
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i] = shiftedVal | (temp[i] & 0xff);
- }
- }
- }
- else {
- const GLuint shiftedVal = *((GLuint *) value);
- assert(dsrb->Format == MESA_FORMAT_S8_Z24);
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i] = shiftedVal | (temp[i] & 0xff000000);
- }
- }
- }
- dsrb->PutValues(ctx, dsrb, count, x, y, temp, mask);
-}
-
-
-/**
- * Wrap the given GL_DEPTH_STENCIL renderbuffer so that it acts like
- * a depth renderbuffer.
- * \return new depth renderbuffer
- */
-static struct gl_renderbuffer *
-new_z24_renderbuffer_wrapper(struct gl_context *ctx,
- struct gl_renderbuffer *dsrb)
-{
- struct gl_renderbuffer *z24rb;
-
- ASSERT(dsrb->Format == MESA_FORMAT_Z24_S8 ||
- dsrb->Format == MESA_FORMAT_Z24_X8 ||
- dsrb->Format == MESA_FORMAT_S8_Z24 ||
- dsrb->Format == MESA_FORMAT_X8_Z24);
- ASSERT(dsrb->DataType == GL_UNSIGNED_INT_24_8_EXT);
-
- z24rb = ctx->Driver.NewRenderbuffer(ctx, 0);
- if (!z24rb)
- return NULL;
-
- /* NOTE: need to do manual refcounting here */
- z24rb->Wrapped = dsrb;
- dsrb->RefCount++;
-
- z24rb->Name = dsrb->Name;
- z24rb->RefCount = 0;
- z24rb->Width = dsrb->Width;
- z24rb->Height = dsrb->Height;
- z24rb->RowStride = dsrb->RowStride;
- z24rb->InternalFormat = GL_DEPTH_COMPONENT24;
- z24rb->Format = MESA_FORMAT_X8_Z24;
- z24rb->_BaseFormat = GL_DEPTH_COMPONENT;
- z24rb->DataType = GL_UNSIGNED_INT;
- z24rb->Data = NULL;
- z24rb->Delete = delete_wrapper;
- z24rb->AllocStorage = alloc_wrapper_storage;
- z24rb->GetPointer = nop_get_pointer;
- z24rb->GetRow = get_row_z24;
- z24rb->GetValues = get_values_z24;
- z24rb->PutRow = put_row_z24;
- z24rb->PutRowRGB = NULL;
- z24rb->PutMonoRow = put_mono_row_z24;
- z24rb->PutValues = put_values_z24;
- z24rb->PutMonoValues = put_mono_values_z24;
-
- return z24rb;
-}
-
-
-static void
-get_row_z32f(struct gl_context *ctx, struct gl_renderbuffer *z32frb, GLuint count,
- GLint x, GLint y, void *values)
-{
- struct gl_renderbuffer *dsrb = z32frb->Wrapped;
- GLfloat temp[MAX_WIDTH*2];
- GLfloat *dst = (GLfloat *) values;
- const GLfloat *src = (const GLfloat *) dsrb->GetPointer(ctx, dsrb, x, y);
- GLuint i;
- ASSERT(z32frb->DataType == GL_FLOAT);
- ASSERT(dsrb->DataType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
- ASSERT(dsrb->Format == MESA_FORMAT_Z32_FLOAT_X24S8);
- if (!src) {
- dsrb->GetRow(ctx, dsrb, count, x, y, temp);
- src = temp;
- }
- for (i = 0; i < count; i++) {
- dst[i] = src[i*2];
- }
-}
-
-static void
-get_values_z32f(struct gl_context *ctx, struct gl_renderbuffer *z32frb, GLuint count,
- const GLint x[], const GLint y[], void *values)
-{
- struct gl_renderbuffer *dsrb = z32frb->Wrapped;
- GLfloat temp[MAX_WIDTH*2];
- GLfloat *dst = (GLfloat *) values;
- GLuint i;
- ASSERT(z32frb->DataType == GL_FLOAT);
- ASSERT(dsrb->DataType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
- ASSERT(dsrb->Format == MESA_FORMAT_Z32_FLOAT_X24S8);
- ASSERT(count <= MAX_WIDTH);
- /* don't bother trying direct access */
- dsrb->GetValues(ctx, dsrb, count, x, y, temp);
- for (i = 0; i < count; i++) {
- dst[i] = temp[i*2];
- }
-}
-
-static void
-put_row_z32f(struct gl_context *ctx, struct gl_renderbuffer *z32frb, GLuint count,
- GLint x, GLint y, const void *values, const GLubyte *mask)
-{
- struct gl_renderbuffer *dsrb = z32frb->Wrapped;
- const GLfloat *src = (const GLfloat *) values;
- GLfloat *dst = (GLfloat *) dsrb->GetPointer(ctx, dsrb, x, y);
- ASSERT(z32frb->DataType == GL_FLOAT);
- ASSERT(dsrb->DataType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
- ASSERT(dsrb->Format == MESA_FORMAT_Z32_FLOAT_X24S8);
- if (dst) {
- /* direct access */
- GLuint i;
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- dst[i*2] = src[i];
- }
- }
- }
- else {
- /* get, modify, put */
- GLfloat temp[MAX_WIDTH*2];
- GLuint i;
- dsrb->GetRow(ctx, dsrb, count, x, y, temp);
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i*2] = src[i];
- }
- }
- dsrb->PutRow(ctx, dsrb, count, x, y, temp, mask);
- }
-}
-
-static void
-put_mono_row_z32f(struct gl_context *ctx, struct gl_renderbuffer *z32frb, GLuint count,
- GLint x, GLint y, const void *value, const GLubyte *mask)
-{
- struct gl_renderbuffer *dsrb = z32frb->Wrapped;
- GLfloat *dst = (GLfloat *) dsrb->GetPointer(ctx, dsrb, x, y);
- ASSERT(z32frb->DataType == GL_FLOAT);
- ASSERT(dsrb->DataType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
- ASSERT(dsrb->Format == MESA_FORMAT_Z32_FLOAT_X24S8);
- if (dst) {
- /* direct access */
- GLuint i;
- const GLfloat val = *(GLfloat*)value;
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- dst[i*2] = val;
- }
- }
- }
- else {
- /* get, modify, put */
- GLfloat temp[MAX_WIDTH*2];
- GLuint i;
- const GLfloat val = *(GLfloat *)value;
- dsrb->GetRow(ctx, dsrb, count, x, y, temp);
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i*2] = val;
- }
- }
- dsrb->PutRow(ctx, dsrb, count, x, y, temp, mask);
- }
-}
-
-static void
-put_values_z32f(struct gl_context *ctx, struct gl_renderbuffer *z32frb, GLuint count,
- const GLint x[], const GLint y[],
- const void *values, const GLubyte *mask)
-{
- struct gl_renderbuffer *dsrb = z32frb->Wrapped;
- const GLfloat *src = (const GLfloat *) values;
- ASSERT(z32frb->DataType == GL_FLOAT);
- ASSERT(dsrb->DataType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
- ASSERT(dsrb->Format == MESA_FORMAT_Z32_FLOAT_X24S8);
- if (dsrb->GetPointer(ctx, dsrb, 0, 0)) {
- /* direct access */
- GLuint i;
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- GLfloat *dst = (GLfloat *) dsrb->GetPointer(ctx, dsrb, x[i], y[i]);
- *dst = src[i];
- }
- }
- }
- else {
- /* get, modify, put */
- GLfloat temp[MAX_WIDTH*2];
- GLuint i;
- dsrb->GetValues(ctx, dsrb, count, x, y, temp);
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i*2] = src[i];
- }
- }
- dsrb->PutValues(ctx, dsrb, count, x, y, temp, mask);
- }
-}
-
-static void
-put_mono_values_z32f(struct gl_context *ctx, struct gl_renderbuffer *z32frb,
- GLuint count, const GLint x[], const GLint y[],
- const void *value, const GLubyte *mask)
-{
- struct gl_renderbuffer *dsrb = z32frb->Wrapped;
- GLfloat temp[MAX_WIDTH*2];
- GLuint i;
- const GLfloat val = *(GLfloat *)value;
- ASSERT(z32frb->DataType == GL_FLOAT);
- ASSERT(dsrb->DataType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
- ASSERT(dsrb->Format == MESA_FORMAT_Z32_FLOAT_X24S8);
- /* get, modify, put */
- dsrb->GetValues(ctx, dsrb, count, x, y, temp);
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i*2] = val;
- }
- }
- dsrb->PutValues(ctx, dsrb, count, x, y, temp, mask);
-}
-
-
-/**
- * Wrap the given GL_DEPTH_STENCIL renderbuffer so that it acts like
- * a depth renderbuffer.
- * \return new depth renderbuffer
- */
-static struct gl_renderbuffer *
-new_z32f_renderbuffer_wrapper(struct gl_context *ctx,
- struct gl_renderbuffer *dsrb)
-{
- struct gl_renderbuffer *z32frb;
-
- ASSERT(dsrb->Format == MESA_FORMAT_Z32_FLOAT_X24S8);
- ASSERT(dsrb->DataType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
-
- z32frb = ctx->Driver.NewRenderbuffer(ctx, 0);
- if (!z32frb)
- return NULL;
-
- /* NOTE: need to do manual refcounting here */
- z32frb->Wrapped = dsrb;
- dsrb->RefCount++;
-
- z32frb->Name = dsrb->Name;
- z32frb->RefCount = 0;
- z32frb->Width = dsrb->Width;
- z32frb->Height = dsrb->Height;
- z32frb->RowStride = dsrb->RowStride;
- z32frb->InternalFormat = GL_DEPTH_COMPONENT32F;
- z32frb->Format = MESA_FORMAT_Z32_FLOAT;
- z32frb->_BaseFormat = GL_DEPTH_COMPONENT;
- z32frb->DataType = GL_FLOAT;
- z32frb->Data = NULL;
- z32frb->Delete = delete_wrapper;
- z32frb->AllocStorage = alloc_wrapper_storage;
- z32frb->GetPointer = nop_get_pointer;
- z32frb->GetRow = get_row_z32f;
- z32frb->GetValues = get_values_z32f;
- z32frb->PutRow = put_row_z32f;
- z32frb->PutRowRGB = NULL;
- z32frb->PutMonoRow = put_mono_row_z32f;
- z32frb->PutValues = put_values_z32f;
- z32frb->PutMonoValues = put_mono_values_z32f;
-
- return z32frb;
-}
-
-
-/*======================================================================
- * Stencil wrapper around depth/stencil renderbuffer
- */
-
-static void
-get_row_s8(struct gl_context *ctx, struct gl_renderbuffer *s8rb, GLuint count,
- GLint x, GLint y, void *values)
-{
- struct gl_renderbuffer *dsrb = s8rb->Wrapped;
- GLuint temp[MAX_WIDTH*2], i;
- GLubyte *dst = (GLubyte *) values;
- const GLuint *src = (const GLuint *) dsrb->GetPointer(ctx, dsrb, x, y);
- ASSERT(s8rb->DataType == GL_UNSIGNED_BYTE);
- ASSERT(dsrb->DataType == GL_UNSIGNED_INT_24_8_EXT ||
- dsrb->DataType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
- if (!src) {
- dsrb->GetRow(ctx, dsrb, count, x, y, temp);
- src = temp;
- }
- if (dsrb->Format == MESA_FORMAT_Z32_FLOAT_X24S8) {
- for (i = 0; i < count; i++) {
- dst[i] = src[i*2+1] & 0xff;
- }
- }
- else if (dsrb->Format == MESA_FORMAT_Z24_S8) {
- for (i = 0; i < count; i++) {
- dst[i] = src[i] & 0xff;
- }
- }
- else {
- assert(dsrb->Format == MESA_FORMAT_S8_Z24);
- for (i = 0; i < count; i++) {
- dst[i] = src[i] >> 24;
- }
- }
-}
-
-static void
-get_values_s8(struct gl_context *ctx, struct gl_renderbuffer *s8rb, GLuint count,
- const GLint x[], const GLint y[], void *values)
-{
- struct gl_renderbuffer *dsrb = s8rb->Wrapped;
- GLuint temp[MAX_WIDTH*2], i;
- GLubyte *dst = (GLubyte *) values;
- ASSERT(s8rb->DataType == GL_UNSIGNED_BYTE);
- ASSERT(dsrb->DataType == GL_UNSIGNED_INT_24_8_EXT ||
- dsrb->DataType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
- ASSERT(count <= MAX_WIDTH);
- /* don't bother trying direct access */
- dsrb->GetValues(ctx, dsrb, count, x, y, temp);
- if (dsrb->Format == MESA_FORMAT_Z32_FLOAT_X24S8) {
- for (i = 0; i < count; i++) {
- dst[i] = temp[i*2+1] & 0xff;
- }
- }
- else if (dsrb->Format == MESA_FORMAT_Z24_S8) {
- for (i = 0; i < count; i++) {
- dst[i] = temp[i] & 0xff;
- }
- }
- else {
- assert(dsrb->Format == MESA_FORMAT_S8_Z24);
- for (i = 0; i < count; i++) {
- dst[i] = temp[i] >> 24;
- }
- }
-}
-
-static void
-put_row_s8(struct gl_context *ctx, struct gl_renderbuffer *s8rb, GLuint count,
- GLint x, GLint y, const void *values, const GLubyte *mask)
-{
- struct gl_renderbuffer *dsrb = s8rb->Wrapped;
- const GLubyte *src = (const GLubyte *) values;
- GLuint *dst = (GLuint *) dsrb->GetPointer(ctx, dsrb, x, y);
- ASSERT(s8rb->DataType == GL_UNSIGNED_BYTE);
- ASSERT(dsrb->DataType == GL_UNSIGNED_INT_24_8_EXT ||
- dsrb->DataType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
- if (dst) {
- /* direct access */
- GLuint i;
- if (dsrb->Format == MESA_FORMAT_Z32_FLOAT_X24S8) {
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- dst[i*2+1] = src[i];
- }
- }
- }
- else if (dsrb->Format == MESA_FORMAT_Z24_S8) {
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- dst[i] = (dst[i] & 0xffffff00) | src[i];
- }
- }
- }
- else {
- assert(dsrb->Format == MESA_FORMAT_S8_Z24);
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- dst[i] = (dst[i] & 0xffffff) | (src[i] << 24);
- }
- }
- }
- }
- else {
- /* get, modify, put */
- GLuint temp[MAX_WIDTH*2], i;
- dsrb->GetRow(ctx, dsrb, count, x, y, temp);
- if (dsrb->Format == MESA_FORMAT_Z32_FLOAT_X24S8) {
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i*2+1] = src[i];
- }
- }
- }
- else if (dsrb->Format == MESA_FORMAT_Z24_S8) {
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i] = (temp[i] & 0xffffff00) | src[i];
- }
- }
- }
- else {
- assert(dsrb->Format == MESA_FORMAT_S8_Z24);
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i] = (temp[i] & 0xffffff) | (src[i] << 24);
- }
- }
- }
- dsrb->PutRow(ctx, dsrb, count, x, y, temp, mask);
- }
-}
-
-static void
-put_mono_row_s8(struct gl_context *ctx, struct gl_renderbuffer *s8rb, GLuint count,
- GLint x, GLint y, const void *value, const GLubyte *mask)
-{
- struct gl_renderbuffer *dsrb = s8rb->Wrapped;
- const GLubyte val = *((GLubyte *) value);
- GLuint *dst = (GLuint *) dsrb->GetPointer(ctx, dsrb, x, y);
- ASSERT(s8rb->DataType == GL_UNSIGNED_BYTE);
- ASSERT(dsrb->DataType == GL_UNSIGNED_INT_24_8_EXT ||
- dsrb->DataType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
- if (dst) {
- /* direct access */
- GLuint i;
- if (dsrb->Format == MESA_FORMAT_Z32_FLOAT_X24S8) {
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- dst[i*2+1] = val;
- }
- }
- }
- else if (dsrb->Format == MESA_FORMAT_Z24_S8) {
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- dst[i] = (dst[i] & 0xffffff00) | val;
- }
- }
- }
- else {
- assert(dsrb->Format == MESA_FORMAT_S8_Z24);
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- dst[i] = (dst[i] & 0xffffff) | (val << 24);
- }
- }
- }
- }
- else {
- /* get, modify, put */
- GLuint temp[MAX_WIDTH*2], i;
- dsrb->GetRow(ctx, dsrb, count, x, y, temp);
- if (dsrb->Format == MESA_FORMAT_Z32_FLOAT_X24S8) {
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i*2+1] = val;
- }
- }
- }
- else if (dsrb->Format == MESA_FORMAT_Z24_S8) {
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i] = (temp[i] & 0xffffff00) | val;
- }
- }
- }
- else {
- assert(dsrb->Format == MESA_FORMAT_S8_Z24);
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i] = (temp[i] & 0xffffff) | (val << 24);
- }
- }
- }
- dsrb->PutRow(ctx, dsrb, count, x, y, temp, mask);
- }
-}
-
-static void
-put_values_s8(struct gl_context *ctx, struct gl_renderbuffer *s8rb, GLuint count,
- const GLint x[], const GLint y[],
- const void *values, const GLubyte *mask)
-{
- struct gl_renderbuffer *dsrb = s8rb->Wrapped;
- const GLubyte *src = (const GLubyte *) values;
- ASSERT(s8rb->DataType == GL_UNSIGNED_BYTE);
- ASSERT(dsrb->DataType == GL_UNSIGNED_INT_24_8_EXT ||
- dsrb->DataType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
- if (dsrb->GetPointer(ctx, dsrb, 0, 0)) {
- /* direct access */
- GLuint i;
- if (dsrb->Format == MESA_FORMAT_Z32_FLOAT_X24S8) {
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- GLuint *dst = (GLuint *) dsrb->GetPointer(ctx, dsrb, x[i], y[i]);
- dst[1] = src[i];
- }
- }
- }
- else if (dsrb->Format == MESA_FORMAT_Z24_S8) {
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- GLuint *dst = (GLuint *) dsrb->GetPointer(ctx, dsrb, x[i], y[i]);
- *dst = (*dst & 0xffffff00) | src[i];
- }
- }
- }
- else {
- assert(dsrb->Format == MESA_FORMAT_S8_Z24);
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- GLuint *dst = (GLuint *) dsrb->GetPointer(ctx, dsrb, x[i], y[i]);
- *dst = (*dst & 0xffffff) | (src[i] << 24);
- }
- }
- }
- }
- else {
- /* get, modify, put */
- GLuint temp[MAX_WIDTH*2], i;
- dsrb->GetValues(ctx, dsrb, count, x, y, temp);
- if (dsrb->Format == MESA_FORMAT_Z32_FLOAT_X24S8) {
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i*2+1] = src[i];
- }
- }
- }
- else if (dsrb->Format == MESA_FORMAT_Z24_S8) {
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i] = (temp[i] & 0xffffff00) | src[i];
- }
- }
- }
- else {
- assert(dsrb->Format == MESA_FORMAT_S8_Z24);
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i] = (temp[i] & 0xffffff) | (src[i] << 24);
- }
- }
- }
- dsrb->PutValues(ctx, dsrb, count, x, y, temp, mask);
- }
-}
-
-static void
-put_mono_values_s8(struct gl_context *ctx, struct gl_renderbuffer *s8rb, GLuint count,
- const GLint x[], const GLint y[],
- const void *value, const GLubyte *mask)
-{
- struct gl_renderbuffer *dsrb = s8rb->Wrapped;
- GLuint temp[MAX_WIDTH*2], i;
- const GLubyte val = *((GLubyte *) value);
- /* get, modify, put */
- dsrb->GetValues(ctx, dsrb, count, x, y, temp);
- if (dsrb->Format == MESA_FORMAT_Z32_FLOAT_X24S8) {
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i*2+1] = val;
- }
- }
- }
- else if (dsrb->Format == MESA_FORMAT_Z24_S8) {
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i] = (temp[i] & 0xffffff00) | val;
- }
- }
- }
- else {
- assert(dsrb->Format == MESA_FORMAT_S8_Z24);
- for (i = 0; i < count; i++) {
- if (!mask || mask[i]) {
- temp[i] = (temp[i] & 0xffffff) | (val << 24);
- }
- }
- }
- dsrb->PutValues(ctx, dsrb, count, x, y, temp, mask);
-}
-
-
-/**
- * Wrap the given GL_DEPTH_STENCIL renderbuffer so that it acts like
- * a stencil renderbuffer.
- * \return new stencil renderbuffer
- */
-static struct gl_renderbuffer *
-new_s8_renderbuffer_wrapper(struct gl_context *ctx, struct gl_renderbuffer *dsrb)
-{
- struct gl_renderbuffer *s8rb;
-
- ASSERT(dsrb->Format == MESA_FORMAT_Z24_S8 ||
- dsrb->Format == MESA_FORMAT_S8_Z24 ||
- dsrb->Format == MESA_FORMAT_Z32_FLOAT_X24S8);
- ASSERT(dsrb->DataType == GL_UNSIGNED_INT_24_8_EXT ||
- dsrb->DataType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
-
- s8rb = ctx->Driver.NewRenderbuffer(ctx, 0);
- if (!s8rb)
- return NULL;
-
- /* NOTE: need to do manual refcounting here */
- s8rb->Wrapped = dsrb;
- dsrb->RefCount++;
-
- s8rb->Name = dsrb->Name;
- s8rb->RefCount = 0;
- s8rb->Width = dsrb->Width;
- s8rb->Height = dsrb->Height;
- s8rb->RowStride = dsrb->RowStride;
- s8rb->InternalFormat = GL_STENCIL_INDEX8_EXT;
- s8rb->Format = MESA_FORMAT_S8;
- s8rb->_BaseFormat = GL_STENCIL_INDEX;
- s8rb->DataType = GL_UNSIGNED_BYTE;
- s8rb->Data = NULL;
- s8rb->Delete = delete_wrapper;
- s8rb->AllocStorage = alloc_wrapper_storage;
- s8rb->GetPointer = nop_get_pointer;
- s8rb->GetRow = get_row_s8;
- s8rb->GetValues = get_values_s8;
- s8rb->PutRow = put_row_s8;
- s8rb->PutRowRGB = NULL;
- s8rb->PutMonoRow = put_mono_row_s8;
- s8rb->PutValues = put_values_s8;
- s8rb->PutMonoValues = put_mono_values_s8;
-
- return s8rb;
-}
-
-
-/**
- * Update the framebuffer's _DepthBuffer field using the renderbuffer
- * found at the given attachment index.
- *
- * If that attachment points to a combined GL_DEPTH_STENCIL renderbuffer,
- * create and install a depth wrapper/adaptor.
- *
- * \param fb the framebuffer whose _DepthBuffer field to update
- */
-void
-_mesa_update_depth_buffer(struct gl_context *ctx, struct gl_framebuffer *fb)
-{
- struct gl_renderbuffer *depthRb =
- fb->Attachment[BUFFER_DEPTH].Renderbuffer;
-
- if (depthRb && _mesa_is_format_packed_depth_stencil(depthRb->Format)) {
- /* The attached depth buffer is a GL_DEPTH_STENCIL renderbuffer */
- if (!fb->_DepthBuffer
- || fb->_DepthBuffer->Wrapped != depthRb
- || _mesa_get_format_base_format(fb->_DepthBuffer->Format) != GL_DEPTH_COMPONENT) {
- /* need to update wrapper */
- struct gl_renderbuffer *wrapper;
-
- if (depthRb->Format == MESA_FORMAT_Z32_FLOAT_X24S8) {
- wrapper = new_z32f_renderbuffer_wrapper(ctx, depthRb);
- }
- else {
- wrapper = new_z24_renderbuffer_wrapper(ctx, depthRb);
- }
- _mesa_reference_renderbuffer(&fb->_DepthBuffer, wrapper);
- ASSERT(fb->_DepthBuffer->Wrapped == depthRb);
- }
- }
- else {
- /* depthRb may be null */
- _mesa_reference_renderbuffer(&fb->_DepthBuffer, depthRb);
- }
-}
-
-
-/**
- * Update the framebuffer's _StencilBuffer field using the renderbuffer
- * found at the given attachment index.
- *
- * If that attachment points to a combined GL_DEPTH_STENCIL renderbuffer,
- * create and install a stencil wrapper/adaptor.
- *
- * \param fb the framebuffer whose _StencilBuffer field to update
- */
-void
-_mesa_update_stencil_buffer(struct gl_context *ctx, struct gl_framebuffer *fb)
-{
- struct gl_renderbuffer *stencilRb =
- fb->Attachment[BUFFER_STENCIL].Renderbuffer;
-
- if (stencilRb && _mesa_is_format_packed_depth_stencil(stencilRb->Format)) {
- /* The attached stencil buffer is a GL_DEPTH_STENCIL renderbuffer */
- if (!fb->_StencilBuffer
- || fb->_StencilBuffer->Wrapped != stencilRb
- || _mesa_get_format_base_format(fb->_StencilBuffer->Format) != GL_STENCIL_INDEX) {
- /* need to update wrapper */
- struct gl_renderbuffer *wrapper
- = new_s8_renderbuffer_wrapper(ctx, stencilRb);
- _mesa_reference_renderbuffer(&fb->_StencilBuffer, wrapper);
- ASSERT(fb->_StencilBuffer->Wrapped == stencilRb);
- }
- }
- else {
- /* stencilRb may be null */
- _mesa_reference_renderbuffer(&fb->_StencilBuffer, stencilRb);
- }
-}
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