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-rw-r--r--src/mesa/main/dd.h3
-rw-r--r--src/mesa/main/depthstencil.c549
-rw-r--r--src/mesa/main/depthstencil.h55
-rw-r--r--src/mesa/main/fbobject.c36
-rw-r--r--src/mesa/main/fbobject.h10
-rw-r--r--src/mesa/main/framebuffer.c105
-rw-r--r--src/mesa/main/mtypes.h5
7 files changed, 740 insertions, 23 deletions
diff --git a/src/mesa/main/dd.h b/src/mesa/main/dd.h
index f150cf99e25..1e7a93e939a 100644
--- a/src/mesa/main/dd.h
+++ b/src/mesa/main/dd.h
@@ -802,7 +802,8 @@ struct dd_function_table {
struct gl_framebuffer * (*NewFramebuffer)(GLcontext *ctx, GLuint name);
struct gl_renderbuffer * (*NewRenderbuffer)(GLcontext *ctx, GLuint name);
void (*FramebufferRenderbuffer)(GLcontext *ctx,
- struct gl_renderbuffer_attachment *att,
+ struct gl_framebuffer *fb,
+ GLenum attachment,
struct gl_renderbuffer *rb);
void (*RenderbufferTexture)(GLcontext *ctx,
struct gl_renderbuffer_attachment *att,
diff --git a/src/mesa/main/depthstencil.c b/src/mesa/main/depthstencil.c
new file mode 100644
index 00000000000..90e434118e1
--- /dev/null
+++ b/src/mesa/main/depthstencil.c
@@ -0,0 +1,549 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5
+ *
+ * Copyright (C) 1999-2005 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 "fbobject.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 renderbuffer with depth and stencil
+ * adaptors, each with the right kind of depth/stencil Get/Put functions.
+ */
+
+
+static void *
+nop_get_pointer(GLcontext *ctx, struct gl_renderbuffer *rb, GLint x, GLint y)
+{
+ return NULL;
+}
+
+
+/**
+ * Delete a depth or stencil renderbuffer.
+ */
+static void
+delete_wrapper(struct gl_renderbuffer *rb)
+{
+ struct gl_renderbuffer *dsrb = rb->Wrapped;
+ assert(dsrb);
+ assert(rb->InternalFormat == GL_DEPTH_COMPONENT24 ||
+ rb->InternalFormat == GL_STENCIL_INDEX8_EXT);
+ /* decrement refcount on the wrapped buffer and delete it if necessary */
+ dsrb->RefCount--;
+ if (dsrb->RefCount <= 0) {
+ dsrb->Delete(dsrb);
+ }
+ _mesa_free(rb);
+}
+
+
+/*======================================================================
+ * Depth wrapper around depth/stencil renderbuffer
+ */
+
+static void
+get_row_z24(GLcontext *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;
+ }
+ for (i = 0; i < count; i++) {
+ dst[i] = src[i] >> 8;
+ }
+}
+
+static void
+get_values_z24(GLcontext *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);
+ for (i = 0; i < count; i++) {
+ dst[i] = temp[i] >> 8;
+ }
+}
+
+static void
+put_row_z24(GLcontext *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;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ dst[i] = (src[i] << 8) | (dst[i] & 0xff);
+ }
+ }
+ }
+ else {
+ /* get, modify, put */
+ GLuint temp[MAX_WIDTH], i;
+ dsrb->GetRow(ctx, dsrb, count, x, y, temp);
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ temp[i] = (src[i] << 8) | (temp[i] & 0xff);
+ }
+ }
+ dsrb->PutRow(ctx, dsrb, count, x, y, temp, mask);
+ }
+}
+
+static void
+put_mono_row_z24(GLcontext *ctx, struct gl_renderbuffer *z24rb, GLuint count,
+ GLint x, GLint y, const void *value, const GLubyte *mask)
+{
+ struct gl_renderbuffer *dsrb = z24rb->Wrapped;
+ const GLuint shiftedVal = *((GLuint *) value) << 8;
+ 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;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ dst[i] = shiftedVal | (dst[i] & 0xff);
+ }
+ }
+ }
+ else {
+ /* get, modify, put */
+ GLuint temp[MAX_WIDTH], i;
+ dsrb->GetRow(ctx, dsrb, count, x, y, temp);
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ temp[i] = shiftedVal | (temp[i] & 0xff);
+ }
+ }
+ dsrb->PutRow(ctx, dsrb, count, x, y, temp, mask);
+ }
+}
+
+static void
+put_values_z24(GLcontext *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 GLubyte *src = (const GLubyte *) 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;
+ 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 {
+ /* get, modify, put */
+ GLuint temp[MAX_WIDTH], i;
+ dsrb->GetValues(ctx, dsrb, count, x, y, temp);
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ temp[i] = (src[i] << 8) | (temp[i] & 0xff);
+ }
+ }
+ dsrb->PutValues(ctx, dsrb, count, x, y, temp, mask);
+ }
+}
+
+static void
+put_mono_values_z24(GLcontext *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;
+ const GLuint shiftedVal = *((GLuint *) value) << 8;
+ /* get, modify, put */
+ dsrb->GetValues(ctx, dsrb, count, x, y, temp);
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ temp[i] = shiftedVal | (temp[i] & 0xff);
+ }
+ }
+ 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
+ */
+struct gl_renderbuffer *
+_mesa_new_z24_renderbuffer_wrapper(GLcontext *ctx,
+ struct gl_renderbuffer *dsrb)
+{
+ struct gl_renderbuffer *z24rb;
+
+ ASSERT(dsrb->_BaseFormat == GL_DEPTH_STENCIL_EXT);
+ ASSERT(dsrb->DataType == GL_UNSIGNED_INT_24_8_EXT);
+
+ z24rb = _mesa_new_renderbuffer(ctx, 0);
+ if (!z24rb)
+ return NULL;
+
+ z24rb->Wrapped = dsrb;
+ z24rb->Name = dsrb->Name;
+ z24rb->RefCount = 1;
+ z24rb->Width = dsrb->Width;
+ z24rb->Height = dsrb->Height;
+ z24rb->InternalFormat = GL_DEPTH_COMPONENT24_ARB;
+ z24rb->_BaseFormat = GL_DEPTH_COMPONENT;
+ z24rb->DataType = GL_UNSIGNED_INT;
+ z24rb->DepthBits = 24;
+ z24rb->Data = NULL;
+ z24rb->Delete = delete_wrapper;
+ 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;
+}
+
+
+/*======================================================================
+ * Stencil wrapper around depth/stencil renderbuffer
+ */
+
+static void
+get_row_s8(GLcontext *ctx, struct gl_renderbuffer *s8rb, GLuint count,
+ GLint x, GLint y, void *values)
+{
+ struct gl_renderbuffer *dsrb = s8rb->Wrapped;
+ GLuint temp[MAX_WIDTH], 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);
+ if (!src) {
+ dsrb->GetRow(ctx, dsrb, count, x, y, temp);
+ src = temp;
+ }
+ for (i = 0; i < count; i++) {
+ dst[i] = src[i] & 0xff;
+ }
+}
+
+static void
+get_values_s8(GLcontext *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], i;
+ GLubyte *dst = (GLubyte *) values;
+ ASSERT(s8rb->DataType == GL_UNSIGNED_BYTE);
+ 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);
+ for (i = 0; i < count; i++) {
+ dst[i] = temp[i] & 0xff;
+ }
+}
+
+static void
+put_row_s8(GLcontext *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);
+ if (dst) {
+ /* direct access */
+ GLuint i;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ dst[i] = (dst[i] & 0xffffff00) | src[i];
+ }
+ }
+ }
+ else {
+ /* get, modify, put */
+ GLuint temp[MAX_WIDTH], i;
+ dsrb->GetRow(ctx, dsrb, count, x, y, temp);
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ temp[i] = (temp[i] & 0xffffff00) | src[i];
+ }
+ }
+ dsrb->PutRow(ctx, dsrb, count, x, y, temp, mask);
+ }
+}
+
+static void
+put_mono_row_s8(GLcontext *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);
+ if (dst) {
+ /* direct access */
+ GLuint i;
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ dst[i] = (dst[i] & 0xffffff00) | val;
+ }
+ }
+ }
+ else {
+ /* get, modify, put */
+ GLuint temp[MAX_WIDTH], i;
+ dsrb->GetRow(ctx, dsrb, count, x, y, temp);
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ temp[i] = (temp[i] & 0xffffff00) | val;
+ }
+ }
+ dsrb->PutRow(ctx, dsrb, count, x, y, temp, mask);
+ }
+}
+
+static void
+put_values_s8(GLcontext *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);
+ if (dsrb->GetPointer(ctx, dsrb, 0, 0)) {
+ /* direct access */
+ GLuint i;
+ 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 {
+ /* get, modify, put */
+ GLuint temp[MAX_WIDTH], i;
+ dsrb->GetValues(ctx, dsrb, count, x, y, temp);
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ temp[i] = (temp[i] & 0xffffff00) | src[i];
+ }
+ }
+ dsrb->PutValues(ctx, dsrb, count, x, y, temp, mask);
+ }
+}
+
+static void
+put_mono_values_s8(GLcontext *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], i;
+ const GLubyte val = *((GLubyte *) value);
+ /* get, modify, put */
+ dsrb->GetValues(ctx, dsrb, count, x, y, temp);
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ temp[i] = (temp[i] & 0xffffff) | val;
+ }
+ }
+ 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
+ */
+struct gl_renderbuffer *
+_mesa_new_s8_renderbuffer_wrapper(GLcontext *ctx, struct gl_renderbuffer *dsrb)
+{
+ struct gl_renderbuffer *s8rb;
+
+ ASSERT(dsrb->_BaseFormat == GL_DEPTH_STENCIL_EXT);
+ ASSERT(dsrb->DataType == GL_UNSIGNED_INT_24_8_EXT);
+
+ s8rb = _mesa_new_renderbuffer(ctx, 0);
+ if (!s8rb)
+ return NULL;
+
+ s8rb->Wrapped = dsrb;
+ s8rb->Name = dsrb->Name;
+ s8rb->RefCount = 1;
+ s8rb->Width = dsrb->Width;
+ s8rb->Height = dsrb->Height;
+ s8rb->InternalFormat = GL_STENCIL_INDEX8_EXT;
+ s8rb->_BaseFormat = GL_STENCIL_INDEX;
+ s8rb->DataType = GL_UNSIGNED_BYTE;
+ s8rb->StencilBits = 8;
+ s8rb->Data = NULL;
+ s8rb->Delete = delete_wrapper;
+ 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;
+}
+
+
+/**
+ * Merge data from a depth renderbuffer and a stencil renderbuffer into a
+ * combined depth/stencil renderbuffer.
+ */
+void
+_mesa_merge_depth_stencil_buffers(GLcontext *ctx,
+ struct gl_renderbuffer *dest,
+ struct gl_renderbuffer *depth,
+ struct gl_renderbuffer *stencil)
+{
+ GLuint depthVals[MAX_WIDTH];
+ GLubyte stencilVals[MAX_WIDTH];
+ GLuint combined[MAX_WIDTH];
+ GLuint row, width;
+
+ ASSERT(dest);
+ ASSERT(depth);
+ ASSERT(stencil);
+
+ ASSERT(dest->InternalFormat == GL_DEPTH24_STENCIL8_EXT);
+ ASSERT(dest->DataType == GL_UNSIGNED_INT_24_8_EXT);
+ ASSERT(depth->InternalFormat == GL_DEPTH_COMPONENT24);
+ ASSERT(depth->DataType == GL_UNSIGNED_INT);
+ ASSERT(stencil->InternalFormat == GL_STENCIL_INDEX8_EXT);
+ ASSERT(stencil->DataType == GL_UNSIGNED_BYTE);
+
+ ASSERT(dest->Width == depth->Width);
+ ASSERT(dest->Height == depth->Height);
+ ASSERT(dest->Width == stencil->Width);
+ ASSERT(dest->Height == stencil->Height);
+
+ width = dest->Width;
+ for (row = 0; row < dest->Height; row++) {
+ GLuint i;
+ depth->GetRow(ctx, depth, width, 0, row, depthVals);
+ stencil->GetRow(ctx, stencil, width, 0, row, stencilVals);
+ for (i = 0; i < width; i++) {
+ combined[i] = (depthVals[i] << 8) | stencilVals[i];
+ }
+ dest->PutRow(ctx, dest, width, 0, row, combined, NULL);
+ }
+}
+
+
+/**
+ * Split combined depth/stencil renderbuffer data into separate depth/stencil
+ * buffers.
+ */
+void
+_mesa_split_depth_stencil_buffer(GLcontext *ctx,
+ struct gl_renderbuffer *source,
+ struct gl_renderbuffer *depth,
+ struct gl_renderbuffer *stencil)
+{
+ GLuint depthVals[MAX_WIDTH];
+ GLubyte stencilVals[MAX_WIDTH];
+ GLuint combined[MAX_WIDTH];
+ GLuint row, width;
+
+ ASSERT(source);
+ ASSERT(depth);
+ ASSERT(stencil);
+
+ ASSERT(source->InternalFormat == GL_DEPTH24_STENCIL8_EXT);
+ ASSERT(source->DataType == GL_UNSIGNED_INT_24_8_EXT);
+ ASSERT(depth->InternalFormat == GL_DEPTH_COMPONENT24);
+ ASSERT(depth->DataType == GL_UNSIGNED_INT);
+ ASSERT(stencil->InternalFormat == GL_STENCIL_INDEX8_EXT);
+ ASSERT(stencil->DataType == GL_UNSIGNED_BYTE);
+
+ ASSERT(source->Width == depth->Width);
+ ASSERT(source->Height == depth->Height);
+ ASSERT(source->Width == stencil->Width);
+ ASSERT(source->Height == stencil->Height);
+
+ width = source->Width;
+ for (row = 0; row < source->Height; row++) {
+ GLuint i;
+ source->GetRow(ctx, source, width, 0, row, combined);
+ for (i = 0; i < width; i++) {
+ depthVals[i] = combined[i] >> 8;
+ stencilVals[i] = combined[i] & 0xff;
+ }
+ depth->PutRow(ctx, depth, width, 0, row, depthVals, NULL);
+ stencil->PutRow(ctx, stencil, width, 0, row, stencilVals, NULL);
+ }
+}
diff --git a/src/mesa/main/depthstencil.h b/src/mesa/main/depthstencil.h
new file mode 100644
index 00000000000..76b75a0e361
--- /dev/null
+++ b/src/mesa/main/depthstencil.h
@@ -0,0 +1,55 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5
+ *
+ * Copyright (C) 1999-2005 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.
+ */
+
+
+#ifndef DEPTHSTENCIL_H
+#define DEPTHSTENCIL_H
+
+
+extern struct gl_renderbuffer *
+_mesa_new_z24_renderbuffer_wrapper(GLcontext *ctx,
+ struct gl_renderbuffer *dsrb);
+
+
+extern struct gl_renderbuffer *
+_mesa_new_s8_renderbuffer_wrapper(GLcontext *ctx,
+ struct gl_renderbuffer *dsrb);
+
+
+extern void
+_mesa_merge_depth_stencil_buffers(GLcontext *ctx,
+ struct gl_renderbuffer *dest,
+ struct gl_renderbuffer *depth,
+ struct gl_renderbuffer *stencil);
+
+
+extern void
+_mesa_split_depth_stencil_buffer(GLcontext *ctx,
+ struct gl_renderbuffer *source,
+ struct gl_renderbuffer *depth,
+ struct gl_renderbuffer *stencil);
+
+
+
+#endif /* DEPTHSTENCIL_H */
diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
index dc32caae158..ecf54a5a797 100644
--- a/src/mesa/main/fbobject.c
+++ b/src/mesa/main/fbobject.c
@@ -38,7 +38,6 @@
#include "texstore.h"
-
/* XXX temporarily here */
#define GL_READ_FRAMEBUFFER_EXT 0x90
#define GL_DRAW_FRAMEBUFFER_EXT 0x9a
@@ -108,8 +107,9 @@ lookup_framebuffer(GLcontext *ctx, GLuint id)
* Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding
* gl_renderbuffer_attachment object.
*/
-static struct gl_renderbuffer_attachment *
-get_attachment(GLcontext *ctx, struct gl_framebuffer *fb, GLenum attachment)
+struct gl_renderbuffer_attachment *
+_mesa_get_attachment(GLcontext *ctx, struct gl_framebuffer *fb,
+ GLenum attachment)
{
GLuint i;
@@ -232,15 +232,17 @@ _mesa_set_renderbuffer_attachment(GLcontext *ctx,
/**
* Fallback for ctx->Driver.FramebufferRenderbuffer()
- * Sets a framebuffer attachment to a particular renderbuffer.
- * The framebuffer in question is ctx->DrawBuffer.
- * \sa _mesa_renderbuffer_texture
+ * Attach a renderbuffer object to a framebuffer object.
*/
void
-_mesa_framebuffer_renderbuffer(GLcontext *ctx,
- struct gl_renderbuffer_attachment *att,
- struct gl_renderbuffer *rb)
+_mesa_framebuffer_renderbuffer(GLcontext *ctx, struct gl_framebuffer *fb,
+ GLenum attachment, struct gl_renderbuffer *rb)
{
+ struct gl_renderbuffer_attachment *att;
+
+ att = _mesa_get_attachment(ctx, fb, attachment);
+ ASSERT(att);
+
if (rb) {
_mesa_set_renderbuffer_attachment(ctx, att, rb);
}
@@ -461,7 +463,7 @@ _mesa_test_framebuffer_completeness(GLcontext *ctx, struct gl_framebuffer *fb)
for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) {
if (fb->ColorDrawBuffer[i] != GL_NONE) {
const struct gl_renderbuffer_attachment *att
- = get_attachment(ctx, fb, fb->ColorDrawBuffer[i]);
+ = _mesa_get_attachment(ctx, fb, fb->ColorDrawBuffer[i]);
assert(att);
if (att->Type == GL_NONE) {
fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT;
@@ -473,7 +475,7 @@ _mesa_test_framebuffer_completeness(GLcontext *ctx, struct gl_framebuffer *fb)
/* Check that the ReadBuffer is present */
if (fb->ColorReadBuffer != GL_NONE) {
const struct gl_renderbuffer_attachment *att
- = get_attachment(ctx, fb, fb->ColorReadBuffer);
+ = _mesa_get_attachment(ctx, fb, fb->ColorReadBuffer);
assert(att);
if (att->Type == GL_NONE) {
fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT;
@@ -1151,7 +1153,7 @@ _mesa_FramebufferTexture1DEXT(GLenum target, GLenum attachment,
ASSERT(textarget == GL_TEXTURE_1D);
/* XXX read blit */
- att = get_attachment(ctx, ctx->DrawBuffer, attachment);
+ att = _mesa_get_attachment(ctx, ctx->DrawBuffer, attachment);
if (att == NULL) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glFramebufferTexture1DEXT(attachment)");
@@ -1200,7 +1202,7 @@ _mesa_FramebufferTexture2DEXT(GLenum target, GLenum attachment,
textarget == GL_TEXTURE_RECTANGLE_ARB ||
IS_CUBE_FACE(textarget));
- att = get_attachment(ctx, ctx->DrawBuffer, attachment);
+ att = _mesa_get_attachment(ctx, ctx->DrawBuffer, attachment);
if (att == NULL) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glFramebufferTexture2DEXT(attachment)");
@@ -1252,7 +1254,7 @@ _mesa_FramebufferTexture3DEXT(GLenum target, GLenum attachment,
ASSERT(textarget == GL_TEXTURE_3D);
- att = get_attachment(ctx, ctx->DrawBuffer, attachment);
+ att = _mesa_get_attachment(ctx, ctx->DrawBuffer, attachment);
if (att == NULL) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glFramebufferTexture1DEXT(attachment)");
@@ -1342,7 +1344,7 @@ _mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment,
return;
}
- att = get_attachment(ctx, fb, attachment);
+ att = _mesa_get_attachment(ctx, fb, attachment);
if (att == NULL) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glFramebufferRenderbufferEXT(attachment)");
@@ -1365,7 +1367,7 @@ _mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment,
FLUSH_VERTICES(ctx, _NEW_BUFFERS);
assert(ctx->Driver.FramebufferRenderbuffer);
- ctx->Driver.FramebufferRenderbuffer(ctx, att, rb);
+ ctx->Driver.FramebufferRenderbuffer(ctx, fb, attachment, rb);
}
@@ -1413,7 +1415,7 @@ _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
return;
}
- att = get_attachment(ctx, buffer, attachment);
+ att = _mesa_get_attachment(ctx, buffer, attachment);
if (att == NULL) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glGetFramebufferAttachmentParameterivEXT(attachment)");
diff --git a/src/mesa/main/fbobject.h b/src/mesa/main/fbobject.h
index 59214ce81d8..71517adfd89 100644
--- a/src/mesa/main/fbobject.h
+++ b/src/mesa/main/fbobject.h
@@ -27,6 +27,11 @@
#define FBOBJECT_H
+extern struct gl_renderbuffer_attachment *
+_mesa_get_attachment(GLcontext *ctx, struct gl_framebuffer *fb,
+ GLenum attachment);
+
+
extern void
_mesa_remove_attachment(GLcontext *ctx,
struct gl_renderbuffer_attachment *att);
@@ -43,9 +48,8 @@ _mesa_set_renderbuffer_attachment(GLcontext *ctx,
struct gl_renderbuffer *rb);
extern void
-_mesa_framebuffer_renderbuffer(GLcontext *ctx,
- struct gl_renderbuffer_attachment *att,
- struct gl_renderbuffer *rb);
+_mesa_framebuffer_renderbuffer(GLcontext *ctx, struct gl_framebuffer *fb,
+ GLenum attachment, struct gl_renderbuffer *rb);
extern void
_mesa_test_framebuffer_completeness(GLcontext *ctx, struct gl_framebuffer *fb);
diff --git a/src/mesa/main/framebuffer.c b/src/mesa/main/framebuffer.c
index 956527efbc1..4fef9066c83 100644
--- a/src/mesa/main/framebuffer.c
+++ b/src/mesa/main/framebuffer.c
@@ -33,6 +33,7 @@
#include "glheader.h"
#include "imports.h"
#include "context.h"
+#include "depthstencil.h"
#include "mtypes.h"
#include "fbobject.h"
#include "framebuffer.h"
@@ -159,7 +160,7 @@ _mesa_destroy_framebuffer(struct gl_framebuffer *fb)
{
if (fb) {
_mesa_free_framebuffer_data(fb);
- FREE(fb);
+ _mesa_free(fb);
}
}
@@ -187,6 +188,23 @@ _mesa_free_framebuffer_data(struct gl_framebuffer *fb)
att->Type = GL_NONE;
att->Renderbuffer = NULL;
}
+
+ if (fb->_DepthBuffer) {
+ struct gl_renderbuffer *rb = fb->_DepthBuffer;
+ rb->RefCount--;
+ if (rb->RefCount <= 0) {
+ rb->Delete(rb);
+ }
+ fb->_DepthBuffer = NULL;
+ }
+ if (fb->_StencilBuffer) {
+ struct gl_renderbuffer *rb = fb->_StencilBuffer;
+ rb->RefCount--;
+ if (rb->RefCount <= 0) {
+ rb->Delete(rb);
+ }
+ fb->_StencilBuffer = NULL;
+ }
}
@@ -194,7 +212,11 @@ _mesa_free_framebuffer_data(struct gl_framebuffer *fb)
* Resize the given framebuffer's renderbuffers to the new width and height.
* This should only be used for window-system framebuffers, not
* user-created renderbuffers (i.e. made with GL_EXT_framebuffer_object).
- * This will typically be called via ctx->Driver.ResizeBuffers()
+ * This will typically be called via ctx->Driver.ResizeBuffers() or directly
+ * from a device driver.
+ *
+ * \note it's possible for ctx to be null since a window can be resized
+ * without a currently bound rendering context.
*/
void
_mesa_resize_framebuffer(GLcontext *ctx, struct gl_framebuffer *fb,
@@ -378,6 +400,45 @@ _mesa_update_framebuffer_visual(struct gl_framebuffer *fb)
/**
+ * Helper function for _mesa_update_framebuffer().
+ * Set the actual depth renderbuffer for the given framebuffer.
+ * Take care of reference counts, etc.
+ */
+static void
+set_depth_renderbuffer(struct gl_framebuffer *fb,
+ struct gl_renderbuffer *rb)
+{
+ if (fb->_DepthBuffer) {
+ fb->_DepthBuffer->RefCount--;
+ if (fb->_DepthBuffer->RefCount <= 0) {
+ fb->_DepthBuffer->Delete(fb->_DepthBuffer);
+ }
+ }
+ fb->_DepthBuffer = rb;
+ if (rb)
+ rb->RefCount++;
+}
+
+/**
+ * \sa set_depth_renderbuffer.
+ */
+static void
+set_stencil_renderbuffer(struct gl_framebuffer *fb,
+ struct gl_renderbuffer *rb)
+{
+ if (fb->_StencilBuffer) {
+ fb->_StencilBuffer->RefCount--;
+ if (fb->_StencilBuffer->RefCount <= 0) {
+ fb->_StencilBuffer->Delete(fb->_StencilBuffer);
+ }
+ }
+ fb->_StencilBuffer = rb;
+ if (rb)
+ rb->RefCount++;
+}
+
+
+/**
* Update state related to the current draw/read framebuffers.
* Specifically, update these framebuffer fields:
* _ColorDrawBuffers
@@ -440,5 +501,45 @@ _mesa_update_framebuffer(GLcontext *ctx)
fb->_ColorReadBuffer
= fb->Attachment[fb->_ColorReadBufferIndex].Renderbuffer;
}
+
+ /*
+ * Deal with GL_DEPTH_STENCIL renderbuffer(s) attached to the depth
+ * and/or stencil attachment points.
+ */
+ {
+ struct gl_renderbuffer *depthRb
+ = fb->Attachment[BUFFER_DEPTH].Renderbuffer;
+ struct gl_renderbuffer *stencilRb
+ = fb->Attachment[BUFFER_STENCIL].Renderbuffer;
+
+ if (depthRb && depthRb->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
+ if (!fb->_DepthBuffer || fb->_DepthBuffer->Wrapped != depthRb) {
+ /* need to update wrapper */
+ struct gl_renderbuffer *wrapper
+ = _mesa_new_z24_renderbuffer_wrapper(ctx, depthRb);
+ set_depth_renderbuffer(fb, wrapper);
+ assert(fb->_DepthBuffer->Wrapped == depthRb);
+ }
+ }
+ else {
+ /* depthRb may be null */
+ set_depth_renderbuffer(fb, depthRb);
+ }
+
+ if (stencilRb && stencilRb->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
+ if (!fb->_StencilBuffer || fb->_StencilBuffer->Wrapped != stencilRb) {
+ /* need to update wrapper */
+ struct gl_renderbuffer *wrapper
+ = _mesa_new_s8_renderbuffer_wrapper(ctx, stencilRb);
+ set_stencil_renderbuffer(fb, wrapper);
+ assert(fb->_StencilBuffer->Wrapped == stencilRb);
+ }
+ }
+ else {
+ /* stencilRb may be null */
+ set_stencil_renderbuffer(fb, stencilRb);
+ }
+ }
+
compute_depth_max(fb);
}
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 17978e7135a..32ce91c50e1 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -2243,6 +2243,11 @@ struct gl_framebuffer
struct gl_renderbuffer *_ColorDrawBuffers[MAX_DRAW_BUFFERS][4];
struct gl_renderbuffer *_ColorReadBuffer;
+ /** The Actual depth/stencil buffers to use. May be wrappers around the
+ * depth/stencil buffers attached above. */
+ struct gl_renderbuffer *_DepthBuffer;
+ struct gl_renderbuffer *_StencilBuffer;
+
/** Delete this framebuffer */
void (*Delete)(struct gl_framebuffer *fb);
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-30 12:27:45 +0000