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authorBrian Paul <brian.paul@tungstengraphics.com>2005-11-16 04:00:31 +0000
committerBrian Paul <brian.paul@tungstengraphics.com>2005-11-16 04:00:31 +0000
commit06185363ddcbd53a7b8b60350e71d9725a1632d5 (patch)
treeb888c995406f570cca4b6a852d99ba4282e1f0e3
parentc731d6223c171ecc33a1ad6e5c109f506c8d4132 (diff)
added _mesa_new_depthstencil_renderbuffer() for combined depth/stencil buffers
-rw-r--r--src/mesa/main/renderbuffer.c62
-rw-r--r--src/mesa/main/renderbuffer.h5
2 files changed, 59 insertions, 8 deletions
diff --git a/src/mesa/main/renderbuffer.c b/src/mesa/main/renderbuffer.c
index 7abfc7034a..2031662c21 100644
--- a/src/mesa/main/renderbuffer.c
+++ b/src/mesa/main/renderbuffer.c
@@ -313,11 +313,12 @@ put_mono_values_ushort(GLcontext *ctx, struct gl_renderbuffer *rb,
static void *
get_pointer_uint(GLcontext *ctx, struct gl_renderbuffer *rb,
- GLint x, GLint y)
+ GLint x, GLint y)
{
if (!rb->Data)
return NULL;
- ASSERT(rb->DataType == GL_UNSIGNED_INT);
+ ASSERT(rb->DataType == GL_UNSIGNED_INT ||
+ rb->DataType == GL_UNSIGNED_INT_24_8_EXT);
return (GLuint *) rb->Data + y * rb->Width + x;
}
@@ -327,7 +328,8 @@ get_row_uint(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
GLint x, GLint y, void *values)
{
const void *src = rb->GetPointer(ctx, rb, x, y);
- ASSERT(rb->DataType == GL_UNSIGNED_INT);
+ ASSERT(rb->DataType == GL_UNSIGNED_INT ||
+ rb->DataType == GL_UNSIGNED_INT_24_8_EXT);
_mesa_memcpy(values, src, count * sizeof(GLuint));
}
@@ -338,7 +340,8 @@ get_values_uint(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
{
GLuint *dst = (GLuint *) values;
GLuint i;
- ASSERT(rb->DataType == GL_UNSIGNED_INT);
+ ASSERT(rb->DataType == GL_UNSIGNED_INT ||
+ rb->DataType == GL_UNSIGNED_INT_24_8_EXT);
for (i = 0; i < count; i++) {
const GLuint *src = (GLuint *) rb->Data + y[i] * rb->Width + x[i];
dst[i] = *src;
@@ -352,7 +355,8 @@ put_row_uint(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
{
const GLuint *src = (const GLuint *) values;
GLuint *dst = (GLuint *) rb->Data + y * rb->Width + x;
- ASSERT(rb->DataType == GL_UNSIGNED_INT);
+ ASSERT(rb->DataType == GL_UNSIGNED_INT ||
+ rb->DataType == GL_UNSIGNED_INT_24_8_EXT);
if (mask) {
GLuint i;
for (i = 0; i < count; i++) {
@@ -373,7 +377,8 @@ put_mono_row_uint(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
{
const GLuint val = *((const GLuint *) value);
GLuint *dst = (GLuint *) rb->Data + y * rb->Width + x;
- ASSERT(rb->DataType == GL_UNSIGNED_INT);
+ ASSERT(rb->DataType == GL_UNSIGNED_INT ||
+ rb->DataType == GL_UNSIGNED_INT_24_8_EXT);
if (mask) {
GLuint i;
for (i = 0; i < count; i++) {
@@ -398,7 +403,8 @@ put_values_uint(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
{
const GLuint *src = (const GLuint *) values;
GLuint i;
- ASSERT(rb->DataType == GL_UNSIGNED_INT);
+ ASSERT(rb->DataType == GL_UNSIGNED_INT ||
+ rb->DataType == GL_UNSIGNED_INT_24_8_EXT);
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
GLuint *dst = (GLuint *) rb->Data + y[i] * rb->Width + x[i];
@@ -415,7 +421,8 @@ put_mono_values_uint(GLcontext *ctx, struct gl_renderbuffer *rb, GLuint count,
{
const GLuint val = *((const GLuint *) value);
GLuint i;
- ASSERT(rb->DataType == GL_UNSIGNED_INT);
+ ASSERT(rb->DataType == GL_UNSIGNED_INT ||
+ rb->DataType == GL_UNSIGNED_INT_24_8_EXT);
for (i = 0; i < count; i++) {
if (!mask || mask[i]) {
GLuint *dst = (GLuint *) rb->Data + y[i] * rb->Width + x[i];
@@ -1066,6 +1073,22 @@ soft_renderbuffer_storage(GLcontext *ctx, struct gl_renderbuffer *rb,
rb->DepthBits = 32;
pixelSize = sizeof(GLuint);
break;
+ case GL_DEPTH_STENCIL_EXT:
+ case GL_DEPTH24_STENCIL8_EXT:
+ rb->_BaseFormat = GL_DEPTH_STENCIL_EXT;
+ rb->DataType = GL_UNSIGNED_INT_24_8_EXT;
+ rb->GetPointer = get_pointer_uint;
+ rb->GetRow = get_row_uint;
+ rb->GetValues = get_values_uint;
+ rb->PutRow = put_row_uint;
+ rb->PutRowRGB = NULL;
+ rb->PutMonoRow = put_mono_row_uint;
+ rb->PutValues = put_values_uint;
+ rb->PutMonoValues = put_mono_values_uint;
+ rb->DepthBits = 24;
+ rb->StencilBits = 8;
+ pixelSize = sizeof(GLuint);
+ break;
case GL_COLOR_INDEX8_EXT:
rb->_BaseFormat = GL_COLOR_INDEX;
rb->DataType = GL_UNSIGNED_BYTE;
@@ -1966,3 +1989,26 @@ _mesa_add_renderbuffer(struct gl_framebuffer *fb,
fb->Attachment[bufferName].Complete = GL_TRUE;
fb->Attachment[bufferName].Renderbuffer = rb;
}
+
+
+/**
+ * Create a new combined depth/stencil renderbuffer for implementing
+ * the GL_EXT_packed_depth_stencil extension.
+ * \return new depth/stencil renderbuffer
+ */
+struct gl_renderbuffer *
+_mesa_new_depthstencil_renderbuffer(GLcontext *ctx, GLuint name)
+{
+ struct gl_renderbuffer *dsrb;
+
+ dsrb = _mesa_new_renderbuffer(ctx, name);
+ if (!dsrb)
+ return NULL;
+
+ /* init fields not covered by _mesa_new_renderbuffer() */
+ dsrb->InternalFormat = GL_DEPTH24_STENCIL8_EXT;
+ dsrb->AllocStorage = soft_renderbuffer_storage;
+
+ return dsrb;
+}
+
diff --git a/src/mesa/main/renderbuffer.h b/src/mesa/main/renderbuffer.h
index fb3f3572f6..232bdfff9b 100644
--- a/src/mesa/main/renderbuffer.h
+++ b/src/mesa/main/renderbuffer.h
@@ -90,4 +90,9 @@ extern void
_mesa_add_renderbuffer(struct gl_framebuffer *fb,
GLuint bufferName, struct gl_renderbuffer *rb);
+
+extern struct gl_renderbuffer *
+_mesa_new_depthstencil_renderbuffer(GLcontext *ctx, GLuint name);
+
+
#endif /* RENDERBUFFER_H */