diff options
Diffstat (limited to 'src/mesa/swrast/s_depthstencil.c')
| -rw-r--r-- | src/mesa/swrast/s_depthstencil.c | 791 |
1 files changed, 0 insertions, 791 deletions
diff --git a/src/mesa/swrast/s_depthstencil.c b/src/mesa/swrast/s_depthstencil.c deleted file mode 100644 index e48177ec159..00000000000 --- a/src/mesa/swrast/s_depthstencil.c +++ /dev/null @@ -1,791 +0,0 @@ -/* - * 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 "main/glheader.h" -#include "main/imports.h" -#include "main/context.h" -#include "main/formats.h" -#include "main/mtypes.h" -#include "main/renderbuffer.h" -#include "swrast/s_depthstencil.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_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); - } -} - - -/** - * 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->PutValues = put_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_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); - } -} - - -/** - * 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->PutValues = put_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_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); - } -} - - -/** - * 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->PutValues = put_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 -_swrast_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); - fb->_DepthBuffer->Width = depthRb->Width; - fb->_DepthBuffer->Height = depthRb->Height; - } - 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 -_swrast_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); - fb->_StencilBuffer->Width = stencilRb->Width; - fb->_StencilBuffer->Height = stencilRb->Height; - } - else { - /* stencilRb may be null */ - _mesa_reference_renderbuffer(&fb->_StencilBuffer, stencilRb); - } -} |