From: Brian Paul Date: Wed, 28 Sep 2005 02:29:50 +0000 (+0000) Subject: Initial work for GL_EXT_packed_depth_stencil extension. X-Git-Tag: mesa-7.8~8506 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1ad7b99925e044f82e635f746c1ef2df77f69ac9;p=platform%2Fupstream%2Fmesa.git Initial work for GL_EXT_packed_depth_stencil extension. glReadPixels done, glDrawPixels mostly done. --- diff --git a/src/mesa/drivers/x11/xm_dd.c b/src/mesa/drivers/x11/xm_dd.c index e26b54f..0bafad8 100644 --- a/src/mesa/drivers/x11/xm_dd.c +++ b/src/mesa/drivers/x11/xm_dd.c @@ -610,9 +610,7 @@ xmesa_DrawPixels_8R8G8B( GLcontext *ctx, int dstY = y; int w = width; int h = height; - int srcX = unpack->SkipPixels; - int srcY = unpack->SkipRows; - int rowLength = unpack->RowLength ? unpack->RowLength : width; + struct gl_pixelstore_attrib clippedUnpack = *unpack; if (unpack->BufferObj->Name) { /* unpack from PBO */ @@ -636,11 +634,14 @@ xmesa_DrawPixels_8R8G8B( GLcontext *ctx, pixels = ADD_POINTERS(buf, pixels); } - if (_mesa_clip_drawpixels(ctx, &dstX, &dstY, &w, &h, &srcX, &srcY)) { + if (_mesa_clip_drawpixels(ctx, &dstX, &dstY, &w, &h, &clippedUnpack)) { /* This is a little tricky since all coordinates up to now have * been in the OpenGL bottom-to-top orientation. X is top-to-bottom * so we have to carefully compute the Y coordinates/addresses here. */ + int srcX = clippedUnpack.SkipPixels; + int srcY = clippedUnpack.SkipRows; + int rowLength = clippedUnpack.RowLength; XMesaImage ximage; MEMSET(&ximage, 0, sizeof(XMesaImage)); ximage.width = width; @@ -715,9 +716,7 @@ xmesa_DrawPixels_5R6G5B( GLcontext *ctx, int dstY = y; int w = width; int h = height; - int srcX = unpack->SkipPixels; - int srcY = unpack->SkipRows; - int rowLength = unpack->RowLength ? unpack->RowLength : width; + struct gl_pixelstore_attrib clippedUnpack = *unpack; if (unpack->BufferObj->Name) { /* unpack from PBO */ @@ -741,11 +740,14 @@ xmesa_DrawPixels_5R6G5B( GLcontext *ctx, pixels = ADD_POINTERS(buf, pixels); } - if (_mesa_clip_drawpixels(ctx, &dstX, &dstY, &w, &h, &srcX, &srcY)) { + if (_mesa_clip_drawpixels(ctx, &dstX, &dstY, &w, &h, &clippedUnpack)) { /* This is a little tricky since all coordinates up to now have * been in the OpenGL bottom-to-top orientation. X is top-to-bottom * so we have to carefully compute the Y coordinates/addresses here. */ + int srcX = clippedUnpack.SkipPixels; + int srcY = clippedUnpack.SkipRows; + int rowLength = clippedUnpack.RowLength; XMesaImage ximage; MEMSET(&ximage, 0, sizeof(XMesaImage)); ximage.width = width; diff --git a/src/mesa/main/drawpix.c b/src/mesa/main/drawpix.c index 3ced207..de62909 100644 --- a/src/mesa/main/drawpix.c +++ b/src/mesa/main/drawpix.c @@ -91,12 +91,34 @@ error_check_format_type(GLcontext *ctx, GLenum format, GLenum type, return GL_TRUE; } break; + case GL_DEPTH_STENCIL_EXT: + if (!ctx->Extensions.EXT_packed_depth_stencil || + type != GL_UNSIGNED_INT_24_8_EXT) { + _mesa_error(ctx, GL_INVALID_ENUM, "gl%sPixels(type)", readDraw); + return GL_TRUE; + } + if (ctx->DrawBuffer->Visual.depthBits == 0 || + ctx->ReadBuffer->Visual.depthBits == 0 || + ctx->DrawBuffer->Visual.stencilBits == 0 || + ctx->ReadBuffer->Visual.stencilBits == 0) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "gl%sPixels(no depth or stencil buffer)", readDraw); + return GL_TRUE; + } + break; default: /* this should have been caught in _mesa_is_legal_format_type() */ _mesa_problem(ctx, "unexpected format in _mesa_%sPixels", readDraw); return GL_TRUE; } + /* XXX might have to move this to the top of the function */ + if (type == GL_UNSIGNED_INT_24_8_EXT && format != GL_DEPTH_STENCIL_EXT) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "gl%sPixels(format is not GL_DEPTH_STENCIL_EXT)", readDraw); + return GL_TRUE; + } + /* no errors */ return GL_FALSE; } @@ -201,6 +223,20 @@ _mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height, return; } break; + case GL_DEPTH_STENCIL_EXT: + if (!ctx->Extensions.EXT_packed_depth_stencil) { + _mesa_error(ctx, GL_INVALID_ENUM, "glCopyPixels"); + return; + } + if (ctx->DrawBuffer->Visual.depthBits == 0 || + ctx->ReadBuffer->Visual.depthBits == 0 || + ctx->DrawBuffer->Visual.stencilBits == 0 || + ctx->ReadBuffer->Visual.stencilBits == 0) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glCopyPixels(no depth or stencil buffer)"); + return; + } + break; default: _mesa_error(ctx, GL_INVALID_ENUM, "glCopyPixels"); return; diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c index 006f55c..cd97b0c 100644 --- a/src/mesa/main/extensions.c +++ b/src/mesa/main/extensions.c @@ -95,6 +95,7 @@ static const struct { { OFF, "GL_EXT_fog_coord", F(EXT_fog_coord) }, { OFF, "GL_EXT_histogram", F(EXT_histogram) }, { OFF, "GL_EXT_multi_draw_arrays", F(EXT_multi_draw_arrays) }, + { ON, "GL_EXT_packed_depth_stencil", F(EXT_packed_depth_stencil) }, { ON, "GL_EXT_packed_pixels", F(EXT_packed_pixels) }, { OFF, "GL_EXT_paletted_texture", F(EXT_paletted_texture) }, { OFF, "GL_EXT_pixel_buffer_object", F(EXT_pixel_buffer_object) }, @@ -232,6 +233,7 @@ _mesa_enable_sw_extensions(GLcontext *ctx) #endif ctx->Extensions.EXT_histogram = GL_TRUE; ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE; + ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE; ctx->Extensions.EXT_paletted_texture = GL_TRUE; #if FEATURE_EXT_pixel_buffer_object ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE; diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c index f41f464..4c9967e 100644 --- a/src/mesa/main/fbobject.c +++ b/src/mesa/main/fbobject.c @@ -1,6 +1,6 @@ /* * Mesa 3-D graphics library - * Version: 6.3 + * Version: 6.5 * * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. * @@ -289,7 +289,14 @@ test_attachment_completeness(const GLcontext *ctx, GLenum format, } } else if (format == GL_DEPTH) { - if (texImage->TexFormat->BaseFormat != GL_DEPTH_COMPONENT) { + if (texImage->TexFormat->BaseFormat == GL_DEPTH_COMPONENT) { + /* OK */ + } + else if (ctx->Extensions.EXT_packed_depth_stencil && + att->Renderbuffer->_BaseFormat == GL_DEPTH_STENCIL_EXT) { + /* OK */ + } + else { att->Complete = GL_FALSE; return; } @@ -313,14 +320,28 @@ test_attachment_completeness(const GLcontext *ctx, GLenum format, } } else if (format == GL_DEPTH) { - if (att->Renderbuffer->_BaseFormat != GL_DEPTH_COMPONENT) { + if (att->Renderbuffer->_BaseFormat == GL_DEPTH_COMPONENT) { + /* OK */ + } + else if (ctx->Extensions.EXT_packed_depth_stencil && + att->Renderbuffer->_BaseFormat == GL_DEPTH_STENCIL_EXT) { + /* OK */ + } + else { att->Complete = GL_FALSE; return; } } else { assert(format == GL_STENCIL); - if (att->Renderbuffer->_BaseFormat != GL_STENCIL_INDEX) { + if (att->Renderbuffer->_BaseFormat == GL_STENCIL_INDEX) { + /* OK */ + } + else if (ctx->Extensions.EXT_packed_depth_stencil && + att->Renderbuffer->_BaseFormat == GL_DEPTH_STENCIL_EXT) { + /* OK */ + } + else { att->Complete = GL_FALSE; return; } @@ -390,6 +411,7 @@ _mesa_test_framebuffer_completeness(GLcontext *ctx, struct gl_framebuffer *fb) f = att->Texture->Image[att->CubeMapFace][att->TextureLevel]->Format; numImages++; if (f != GL_RGB && f != GL_RGBA && f != GL_DEPTH_COMPONENT) { + /* XXX need GL_DEPTH_STENCIL_EXT test? */ fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT; return; } @@ -449,14 +471,17 @@ _mesa_test_framebuffer_completeness(GLcontext *ctx, struct gl_framebuffer *fb) } } - /* Check if any renderbuffer is attached more than once */ + /* Check if any renderbuffer is attached more than once. + * Note that there's one exception: a GL_DEPTH_STENCIL renderbuffer can be + * bound to both the stencil and depth attachment points at the same time. + */ for (i = 0; i < BUFFER_COUNT - 1; i++) { struct gl_renderbuffer *rb_i = fb->Attachment[i].Renderbuffer; if (rb_i) { GLint j; for (j = i + 1; j < BUFFER_COUNT; j++) { struct gl_renderbuffer *rb_j = fb->Attachment[j].Renderbuffer; - if (rb_i == rb_j) { + if (rb_i == rb_j && rb_i->_BaseFormat != GL_DEPTH_STENCIL_EXT) { fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DUPLICATE_ATTACHMENT_EXT; return; } @@ -607,7 +632,7 @@ _mesa_GenRenderbuffersEXT(GLsizei n, GLuint *renderbuffers) * Given an internal format token for a render buffer, return the * corresponding base format. * \return one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX, GL_DEPTH_COMPONENT - * or zero if error. + * GL_DEPTH_STENCIL_EXT or zero if error. */ static GLenum base_internal_format(GLcontext *ctx, GLenum internalFormat) @@ -642,6 +667,12 @@ base_internal_format(GLcontext *ctx, GLenum internalFormat) case GL_DEPTH_COMPONENT24: case GL_DEPTH_COMPONENT32: return GL_DEPTH_COMPONENT; + case GL_DEPTH_STENCIL_EXT: + case GL_DEPTH24_STENCIL8_EXT: + if (ctx->Extensions.EXT_packed_depth_stencil) + return GL_DEPTH_STENCIL_EXT; + else + return 0; /* XXX add floating point formats eventually */ default: return 0; @@ -781,7 +812,8 @@ _mesa_GetRenderbufferParameterivEXT(GLenum target, GLenum pname, GLint *params) } break; case GL_RENDERBUFFER_DEPTH_SIZE_EXT: - if (ctx->CurrentRenderbuffer->_BaseFormat == GL_DEPTH_COMPONENT) { + if (ctx->CurrentRenderbuffer->_BaseFormat == GL_DEPTH_COMPONENT || + ctx->CurrentRenderbuffer->_BaseFormat == GL_DEPTH_STENCIL_EXT) { *params = ctx->CurrentRenderbuffer->DepthBits; } else { @@ -789,7 +821,8 @@ _mesa_GetRenderbufferParameterivEXT(GLenum target, GLenum pname, GLint *params) } break; case GL_RENDERBUFFER_STENCIL_SIZE_EXT: - if (ctx->CurrentRenderbuffer->_BaseFormat == GL_STENCIL_INDEX) { + if (ctx->CurrentRenderbuffer->_BaseFormat == GL_STENCIL_INDEX || + ctx->CurrentRenderbuffer->_BaseFormat == GL_DEPTH_STENCIL_EXT) { *params = ctx->CurrentRenderbuffer->StencilBits; } else { diff --git a/src/mesa/main/image.c b/src/mesa/main/image.c index 93521a7..b6841d7 100644 --- a/src/mesa/main/image.c +++ b/src/mesa/main/image.c @@ -30,7 +30,6 @@ #include "glheader.h" -#include "bufferobj.h" #include "colormac.h" #include "context.h" #include "image.h" @@ -38,7 +37,6 @@ #include "histogram.h" #include "macros.h" #include "pixel.h" -#include "mtypes.h" /** Compute ceiling of integer quotient of A divided by B. */ @@ -201,7 +199,9 @@ GLint _mesa_sizeof_packed_type( GLenum type ) return sizeof(GLuint); case GL_UNSIGNED_SHORT_8_8_MESA: case GL_UNSIGNED_SHORT_8_8_REV_MESA: - return sizeof(GLushort); + return sizeof(GLushort); + case GL_UNSIGNED_INT_24_8_EXT: + return sizeof(GLuint); default: return -1; } @@ -248,6 +248,8 @@ GLint _mesa_components_in_format( GLenum format ) return 4; case GL_YCBCR_MESA: return 2; + case GL_DEPTH_STENCIL_EXT: + return 2; default: return -1; } @@ -318,6 +320,11 @@ GLint _mesa_bytes_per_pixel( GLenum format, GLenum type ) return sizeof(GLushort); else return -1; + case GL_UNSIGNED_INT_24_8_EXT: + if (format == GL_DEPTH_STENCIL_EXT) + return sizeof(GLuint); + else + return -1; default: return -1; } @@ -443,6 +450,12 @@ _mesa_is_legal_format_and_type( GLcontext *ctx, GLenum format, GLenum type ) return GL_TRUE; else return GL_FALSE; + case GL_DEPTH_STENCIL_EXT: + if (ctx->Extensions.EXT_packed_depth_stencil + && type == GL_UNSIGNED_INT_24_8_EXT) + return GL_TRUE; + else + return GL_FALSE; default: ; /* fall-through */ } @@ -2066,6 +2079,7 @@ extract_uint_indexes(GLuint n, GLuint indexes[], srcType == GL_SHORT || srcType == GL_UNSIGNED_INT || srcType == GL_INT || + srcType == GL_UNSIGNED_INT_24_8_EXT || srcType == GL_HALF_FLOAT_ARB || srcType == GL_FLOAT); @@ -2221,6 +2235,24 @@ extract_uint_indexes(GLuint n, GLuint indexes[], } } break; + case GL_UNSIGNED_INT_24_8_EXT: + { + GLuint i; + const GLuint *s = (const GLuint *) src; + if (unpack->SwapBytes) { + for (i = 0; i < n; i++) { + GLuint value = s[i]; + SWAP4BYTE(value); + indexes[i] = value & 0xff; /* lower 8 bits */ + } + } + else { + for (i = 0; i < n; i++) + indexes[i] = s[i] & 0xfff; /* lower 8 bits */ + } + } + break; + default: _mesa_problem(NULL, "bad srcType in extract_uint_indexes"); return; @@ -3563,6 +3595,7 @@ _mesa_unpack_stencil_span( const GLcontext *ctx, GLuint n, srcType == GL_SHORT || srcType == GL_UNSIGNED_INT || srcType == GL_INT || + srcType == GL_UNSIGNED_INT_24_8_EXT || srcType == GL_HALF_FLOAT_ARB || srcType == GL_FLOAT); @@ -3801,10 +3834,20 @@ _mesa_pack_stencil_span( const GLcontext *ctx, GLuint n, void -_mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest, +_mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, + GLenum dstType, GLvoid *dest, GLfloat depthScale, GLenum srcType, const GLvoid *source, const struct gl_pixelstore_attrib *srcPacking ) { + GLfloat depthTemp[MAX_WIDTH], *depthValues; + + if (dstType == GL_FLOAT) { + depthValues = (GLfloat *) dest; + } + else { + depthValues = depthTemp; + } + (void) srcPacking; switch (srcType) { @@ -3813,7 +3856,7 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest, GLuint i; const GLubyte *src = (const GLubyte *) source; for (i = 0; i < n; i++) { - dest[i] = BYTE_TO_FLOAT(src[i]); + depthValues[i] = BYTE_TO_FLOAT(src[i]); } } break; @@ -3822,7 +3865,7 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest, GLuint i; const GLubyte *src = (const GLubyte *) source; for (i = 0; i < n; i++) { - dest[i] = UBYTE_TO_FLOAT(src[i]); + depthValues[i] = UBYTE_TO_FLOAT(src[i]); } } break; @@ -3831,7 +3874,7 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest, GLuint i; const GLshort *src = (const GLshort *) source; for (i = 0; i < n; i++) { - dest[i] = SHORT_TO_FLOAT(src[i]); + depthValues[i] = SHORT_TO_FLOAT(src[i]); } } break; @@ -3840,7 +3883,7 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest, GLuint i; const GLushort *src = (const GLushort *) source; for (i = 0; i < n; i++) { - dest[i] = USHORT_TO_FLOAT(src[i]); + depthValues[i] = USHORT_TO_FLOAT(src[i]); } } break; @@ -3849,7 +3892,7 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest, GLuint i; const GLint *src = (const GLint *) source; for (i = 0; i < n; i++) { - dest[i] = INT_TO_FLOAT(src[i]); + depthValues[i] = INT_TO_FLOAT(src[i]); } } break; @@ -3858,19 +3901,39 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest, GLuint i; const GLuint *src = (const GLuint *) source; for (i = 0; i < n; i++) { - dest[i] = UINT_TO_FLOAT(src[i]); + depthValues[i] = UINT_TO_FLOAT(src[i]); + } + } + break; + case GL_UNSIGNED_INT_24_8_EXT: /* GL_EXT_packed_depth_stencil */ + if (dstType == GL_UNSIGNED_INT && ctx->Pixel.DepthScale == 1.0 && + ctx->Pixel.DepthBias == 0.0 && depthScale == (GLfloat) 0xffffff) { + const GLuint *src = (const GLuint *) source; + GLuint *zValues = (GLuint *) dest; + GLuint i; + for (i = 0; i < n; i++) { + zValues[i] = src[i] & 0xffffff00; + } + return; + } + else { + const GLuint *src = (const GLuint *) source; + const GLfloat scale = 1.0f / 0xffffff; + GLuint i; + for (i = 0; i < n; i++) { + depthValues[i] = (src[i] >> 8) * scale; } } break; case GL_FLOAT: - MEMCPY(dest, source, n * sizeof(GLfloat)); + MEMCPY(depthValues, source, n * sizeof(GLfloat)); break; case GL_HALF_FLOAT_ARB: { GLuint i; const GLhalfARB *src = (const GLhalfARB *) source; for (i = 0; i < n; i++) { - dest[i] = _mesa_half_to_float(src[i]); + depthValues[i] = _mesa_half_to_float(src[i]); } } break; @@ -3882,12 +3945,27 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest, /* apply depth scale and bias and clamp to [0,1] */ if (ctx->Pixel.DepthScale != 1.0 || ctx->Pixel.DepthBias != 0.0) { + _mesa_scale_and_bias_depth(ctx, n, depthValues); + } + + if (dstType == GL_UNSIGNED_INT) { + GLuint *zValues = (GLuint *) dest; GLuint i; for (i = 0; i < n; i++) { - GLfloat d = dest[i] * ctx->Pixel.DepthScale + ctx->Pixel.DepthBias; - dest[i] = CLAMP(d, 0.0F, 1.0F); + zValues[i] = (GLuint) (depthValues[i] * depthScale); } } + else if (dstType == GL_UNSIGNED_SHORT) { + GLushort *zValues = (GLushort *) dest; + GLuint i; + for (i = 0; i < n; i++) { + zValues[i] = (GLushort) (depthValues[i] * depthScale); + } + } + else { + ASSERT(dstType == GL_FLOAT); + ASSERT(depthScale == 1.0F); + } } @@ -3900,18 +3978,12 @@ _mesa_pack_depth_span( const GLcontext *ctx, GLuint n, GLvoid *dest, const struct gl_pixelstore_attrib *dstPacking ) { GLfloat depthCopy[MAX_WIDTH]; - const GLboolean bias_or_scale = ctx->Pixel.DepthBias != 0.0 || - ctx->Pixel.DepthScale != 1.0; ASSERT(n <= MAX_WIDTH); - if (bias_or_scale) { - GLuint i; - for (i = 0; i < n; i++) { - GLfloat d; - d = depthSpan[i] * ctx->Pixel.DepthScale + ctx->Pixel.DepthBias; - depthCopy[i] = CLAMP(d, 0.0F, 1.0F); - } + if (ctx->Pixel.DepthScale != 1.0 || ctx->Pixel.DepthBias != 0.0) { + _mesa_memcpy(depthCopy, depthSpan, n * sizeof(GLfloat)); + _mesa_scale_and_bias_depth(ctx, n, depthCopy); depthSpan = depthCopy; } @@ -4089,7 +4161,7 @@ _mesa_unpack_image( GLuint dimensions, /** * Perform clipping for glDrawPixels. The image's window position - * and size, and the unpack skipPixels and skipRows are adjusted so + * and size, and the unpack SkipPixels and SkipRows are adjusted so * that the image region is entirely within the window and scissor bounds. * NOTE: this will only work when glPixelZoom is (1, 1). * @@ -4100,15 +4172,19 @@ GLboolean _mesa_clip_drawpixels(const GLcontext *ctx, GLint *destX, GLint *destY, GLsizei *width, GLsizei *height, - GLint *skipPixels, GLint *skipRows) + struct gl_pixelstore_attrib *unpack) { const GLframebuffer *buffer = ctx->DrawBuffer; + if (unpack->RowLength == 0) { + unpack->RowLength = *width; + } + ASSERT(ctx->Pixel.ZoomX == 1.0F && ctx->Pixel.ZoomY == 1.0F); /* left clipping */ if (*destX < buffer->_Xmin) { - *skipPixels += (buffer->_Xmin - *destX); + unpack->SkipPixels += (buffer->_Xmin - *destX); *width -= (buffer->_Xmin - *destX); *destX = buffer->_Xmin; } @@ -4121,7 +4197,7 @@ _mesa_clip_drawpixels(const GLcontext *ctx, /* bottom clipping */ if (*destY < buffer->_Ymin) { - *skipRows += (buffer->_Ymin - *destY); + unpack->SkipRows += (buffer->_Ymin - *destY); *height -= (buffer->_Ymin - *destY); *destY = buffer->_Ymin; } @@ -4138,11 +4214,11 @@ _mesa_clip_drawpixels(const GLcontext *ctx, /** * Perform clipping for glReadPixels. The image's window position - * and size, and the pack skipPixels and skipRows are adjusted so - * that the image region is entirely within the window bounds. + * and size, and the pack skipPixels, skipRows and rowLength are adjusted + * so that the image region is entirely within the window bounds. * Note: this is different from _mesa_clip_drawpixels() in that the - * scissor box is ignored, and we use the bounds of the current "read" - * surface; + * scissor box is ignored, and we use the bounds of the current readbuffer + * surface. * * \return GL_TRUE if image is ready for drawing or * GL_FALSE if image was completely clipped away (draw nothing) @@ -4151,13 +4227,17 @@ GLboolean _mesa_clip_readpixels(const GLcontext *ctx, GLint *srcX, GLint *srcY, GLsizei *width, GLsizei *height, - GLint *skipPixels, GLint *skipRows) + struct gl_pixelstore_attrib *pack) { const GLframebuffer *buffer = ctx->ReadBuffer; + if (pack->RowLength == 0) { + pack->RowLength = *width; + } + /* left clipping */ if (*srcX < 0) { - *skipPixels += (0 - *srcX); + pack->SkipPixels += (0 - *srcX); *width -= (0 - *srcX); *srcX = 0; } @@ -4170,7 +4250,7 @@ _mesa_clip_readpixels(const GLcontext *ctx, /* bottom clipping */ if (*srcY < 0) { - *skipRows += (0 - *srcY); + pack->SkipRows += (0 - *srcY); *height -= (0 - *srcY); *srcY = 0; } diff --git a/src/mesa/main/image.h b/src/mesa/main/image.h index 6b76fd8..74be4ae 100644 --- a/src/mesa/main/image.h +++ b/src/mesa/main/image.h @@ -1,13 +1,8 @@ -/** - * \file image.h - * Image handling. - */ - /* * Mesa 3-D graphics library - * Version: 6.3 + * Version: 6.5 * - * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. + * 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"), @@ -183,7 +178,8 @@ _mesa_pack_stencil_span( const GLcontext *ctx, GLuint n, extern void -_mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest, +_mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, + GLenum dstType, GLvoid *dest, GLfloat depthScale, GLenum srcType, const GLvoid *source, const struct gl_pixelstore_attrib *srcPacking ); @@ -204,14 +200,14 @@ extern GLboolean _mesa_clip_drawpixels(const GLcontext *ctx, GLint *destX, GLint *destY, GLsizei *width, GLsizei *height, - GLint *skipPixels, GLint *skipRows); + struct gl_pixelstore_attrib *unpack); extern GLboolean _mesa_clip_readpixels(const GLcontext *ctx, GLint *destX, GLint *destY, GLsizei *width, GLsizei *height, - GLint *skipPixels, GLint *skipRows); + struct gl_pixelstore_attrib *pack); #endif diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h index beb371f..1643945 100644 --- a/src/mesa/main/mtypes.h +++ b/src/mesa/main/mtypes.h @@ -1178,6 +1178,7 @@ struct gl_texture_format GLubyte IntensityBits; GLubyte IndexBits; GLubyte DepthBits; + GLubyte StencilBits; /**< GL_EXT_packed_depth_stencil */ GLuint TexelBytes; /**< Bytes per texel, 0 if compressed format */ @@ -2200,7 +2201,7 @@ struct gl_framebuffer GLbitfield _ColorDrawBufferMask[MAX_DRAW_BUFFERS]; /* Mask of BUFFER_BIT_* flags */ GLint _ColorReadBufferIndex; /* -1 = None */ - /* These are computed from _Draw/ReadBufferMask, above. */ + /* These are computed from _ColorDrawBufferMask and _ColorReadBufferIndex */ GLuint _NumColorDrawBuffers[MAX_DRAW_BUFFERS]; struct gl_renderbuffer *_ColorDrawBuffers[MAX_DRAW_BUFFERS][4]; struct gl_renderbuffer *_ColorReadBuffer; @@ -2334,6 +2335,7 @@ struct gl_extensions GLboolean EXT_histogram; GLboolean EXT_multi_draw_arrays; GLboolean EXT_paletted_texture; + GLboolean EXT_packed_depth_stencil; GLboolean EXT_packed_pixels; GLboolean EXT_pixel_buffer_object; GLboolean EXT_point_parameters; diff --git a/src/mesa/main/texcompress_fxt1.c b/src/mesa/main/texcompress_fxt1.c index aa56d9c..58d4298 100644 --- a/src/mesa/main/texcompress_fxt1.c +++ b/src/mesa/main/texcompress_fxt1.c @@ -234,6 +234,7 @@ const struct gl_texture_format _mesa_texformat_rgb_fxt1 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 0, /* TexelBytes */ texstore_rgb_fxt1, /* StoreTexImageFunc */ NULL, /*impossible*/ /* FetchTexel1D */ @@ -256,6 +257,7 @@ const struct gl_texture_format _mesa_texformat_rgba_fxt1 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 0, /* TexelBytes */ texstore_rgba_fxt1, /* StoreTexImageFunc */ NULL, /*impossible*/ /* FetchTexel1D */ diff --git a/src/mesa/main/texcompress_s3tc.c b/src/mesa/main/texcompress_s3tc.c index f4d77f3..881da83 100644 --- a/src/mesa/main/texcompress_s3tc.c +++ b/src/mesa/main/texcompress_s3tc.c @@ -1,8 +1,8 @@ /* * Mesa 3-D graphics library - * Version: 6.1 + * Version: 6.5 * - * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. + * 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"), @@ -482,6 +482,7 @@ const struct gl_texture_format _mesa_texformat_rgb_dxt1 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 0, /* TexelBytes */ texstore_rgb_dxt1, /* StoreTexImageFunc */ NULL, /*impossible*/ /* FetchTexel1D */ @@ -504,6 +505,7 @@ const struct gl_texture_format _mesa_texformat_rgba_dxt1 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 0, /* TexelBytes */ texstore_rgba_dxt1, /* StoreTexImageFunc */ NULL, /*impossible*/ /* FetchTexel1D */ @@ -526,6 +528,7 @@ const struct gl_texture_format _mesa_texformat_rgba_dxt3 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 0, /* TexelBytes */ texstore_rgba_dxt3, /* StoreTexImageFunc */ NULL, /*impossible*/ /* FetchTexel1D */ @@ -548,6 +551,7 @@ const struct gl_texture_format _mesa_texformat_rgba_dxt5 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 0, /* TexelBytes */ texstore_rgba_dxt5, /* StoreTexImageFunc */ NULL, /*impossible*/ /* FetchTexel1D */ diff --git a/src/mesa/main/texformat.c b/src/mesa/main/texformat.c index 794dea3..2cea515 100644 --- a/src/mesa/main/texformat.c +++ b/src/mesa/main/texformat.c @@ -113,6 +113,7 @@ const struct gl_texture_format _mesa_texformat_rgba = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 4 * sizeof(GLchan), /* TexelBytes */ _mesa_texstore_rgba, /* StoreTexImageFunc */ fetch_texel_1d_rgba, /* FetchTexel1D */ @@ -136,6 +137,7 @@ const struct gl_texture_format _mesa_texformat_rgb = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 3 * sizeof(GLchan), /* TexelBytes */ _mesa_texstore_rgba,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_rgb, /* FetchTexel1D */ @@ -159,6 +161,7 @@ const struct gl_texture_format _mesa_texformat_alpha = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ sizeof(GLchan), /* TexelBytes */ _mesa_texstore_rgba,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_alpha, /* FetchTexel1D */ @@ -182,6 +185,7 @@ const struct gl_texture_format _mesa_texformat_luminance = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ sizeof(GLchan), /* TexelBytes */ _mesa_texstore_rgba,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_luminance, /* FetchTexel1D */ @@ -205,6 +209,7 @@ const struct gl_texture_format _mesa_texformat_luminance_alpha = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 2 * sizeof(GLchan), /* TexelBytes */ _mesa_texstore_rgba,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_luminance_alpha, /* FetchTexel1D */ @@ -228,6 +233,7 @@ const struct gl_texture_format _mesa_texformat_intensity = { CHAN_BITS, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ sizeof(GLchan), /* TexelBytes */ _mesa_texstore_rgba,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_intensity, /* FetchTexel1D */ @@ -251,6 +257,7 @@ const struct gl_texture_format _mesa_texformat_depth_component_float32 = { 0, /* IntensityBits */ 0, /* IndexBits */ sizeof(GLfloat) * 8, /* DepthBits */ + sizeof(GLfloat) * 8, /* StencilBits */ sizeof(GLfloat), /* TexelBytes */ _mesa_texstore_depth_component_float32,/* StoreTexImageFunc */ NULL, /* FetchTexel1D */ @@ -274,6 +281,7 @@ const struct gl_texture_format _mesa_texformat_depth_component16 = { 0, /* IntensityBits */ 0, /* IndexBits */ sizeof(GLushort) * 8, /* DepthBits */ + sizeof(GLushort) * 8, /* StencilBits */ sizeof(GLushort), /* TexelBytes */ _mesa_texstore_depth_component16, /* StoreTexImageFunc */ NULL, /* FetchTexel1D */ @@ -297,6 +305,7 @@ const struct gl_texture_format _mesa_texformat_rgba_float32 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 4 * sizeof(GLfloat), /* TexelBytes */ _mesa_texstore_rgba_float32, /* StoreTexImageFunc */ NULL, /* FetchTexel1D */ @@ -320,6 +329,7 @@ const struct gl_texture_format _mesa_texformat_rgba_float16 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 4 * sizeof(GLhalfARB), /* TexelBytes */ _mesa_texstore_rgba_float16, /* StoreTexImageFunc */ NULL, /* FetchTexel1D */ @@ -343,6 +353,7 @@ const struct gl_texture_format _mesa_texformat_rgb_float32 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 3 * sizeof(GLfloat), /* TexelBytes */ _mesa_texstore_rgba_float32,/*yes*/ /* StoreTexImageFunc */ NULL, /* FetchTexel1D */ @@ -366,6 +377,7 @@ const struct gl_texture_format _mesa_texformat_rgb_float16 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 3 * sizeof(GLhalfARB), /* TexelBytes */ _mesa_texstore_rgba_float16,/*yes*/ /* StoreTexImageFunc */ NULL, /* FetchTexel1D */ @@ -389,6 +401,7 @@ const struct gl_texture_format _mesa_texformat_alpha_float32 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 1 * sizeof(GLfloat), /* TexelBytes */ _mesa_texstore_rgba_float32,/*yes*/ /* StoreTexImageFunc */ NULL, /* FetchTexel1D */ @@ -412,6 +425,7 @@ const struct gl_texture_format _mesa_texformat_alpha_float16 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 1 * sizeof(GLhalfARB), /* TexelBytes */ _mesa_texstore_rgba_float16,/*yes*/ /* StoreTexImageFunc */ NULL, /* FetchTexel1D */ @@ -435,6 +449,7 @@ const struct gl_texture_format _mesa_texformat_luminance_float32 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 1 * sizeof(GLfloat), /* TexelBytes */ _mesa_texstore_rgba_float32,/*yes*/ /* StoreTexImageFunc */ NULL, /* FetchTexel1D */ @@ -458,6 +473,7 @@ const struct gl_texture_format _mesa_texformat_luminance_float16 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 1 * sizeof(GLhalfARB), /* TexelBytes */ _mesa_texstore_rgba_float16,/*yes*/ /* StoreTexImageFunc */ NULL, /* FetchTexel1D */ @@ -481,6 +497,7 @@ const struct gl_texture_format _mesa_texformat_luminance_alpha_float32 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 2 * sizeof(GLfloat), /* TexelBytes */ _mesa_texstore_rgba_float32, /* StoreTexImageFunc */ NULL, /* FetchTexel1D */ @@ -504,6 +521,7 @@ const struct gl_texture_format _mesa_texformat_luminance_alpha_float16 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 2 * sizeof(GLhalfARB), /* TexelBytes */ _mesa_texstore_rgba_float16, /* StoreTexImageFunc */ NULL, /* FetchTexel1D */ @@ -527,6 +545,7 @@ const struct gl_texture_format _mesa_texformat_intensity_float32 = { 8 * sizeof(GLfloat), /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 1 * sizeof(GLfloat), /* TexelBytes */ _mesa_texstore_rgba_float32,/*yes*/ /* StoreTexImageFunc */ NULL, /* FetchTexel1D */ @@ -550,6 +569,7 @@ const struct gl_texture_format _mesa_texformat_intensity_float16 = { 8 * sizeof(GLhalfARB), /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 1 * sizeof(GLhalfARB), /* TexelBytes */ _mesa_texstore_rgba_float16,/*yes*/ /* StoreTexImageFunc */ NULL, /* FetchTexel1D */ @@ -581,6 +601,7 @@ const struct gl_texture_format _mesa_texformat_rgba8888 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 4, /* TexelBytes */ _mesa_texstore_rgba8888, /* StoreTexImageFunc */ fetch_texel_1d_rgba8888, /* FetchTexel1D */ @@ -604,6 +625,7 @@ const struct gl_texture_format _mesa_texformat_rgba8888_rev = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 4, /* TexelBytes */ _mesa_texstore_rgba8888, /* StoreTexImageFunc */ fetch_texel_1d_rgba8888_rev, /* FetchTexel1D */ @@ -627,6 +649,7 @@ const struct gl_texture_format _mesa_texformat_argb8888 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 4, /* TexelBytes */ _mesa_texstore_argb8888, /* StoreTexImageFunc */ fetch_texel_1d_argb8888, /* FetchTexel1D */ @@ -650,6 +673,7 @@ const struct gl_texture_format _mesa_texformat_argb8888_rev = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 4, /* TexelBytes */ _mesa_texstore_argb8888, /* StoreTexImageFunc */ fetch_texel_1d_argb8888_rev, /* FetchTexel1D */ @@ -673,6 +697,7 @@ const struct gl_texture_format _mesa_texformat_rgb888 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 3, /* TexelBytes */ _mesa_texstore_rgb888, /* StoreTexImageFunc */ fetch_texel_1d_rgb888, /* FetchTexel1D */ @@ -696,6 +721,7 @@ const struct gl_texture_format _mesa_texformat_bgr888 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 3, /* TexelBytes */ _mesa_texstore_bgr888, /* StoreTexImageFunc */ fetch_texel_1d_bgr888, /* FetchTexel1D */ @@ -719,6 +745,7 @@ const struct gl_texture_format _mesa_texformat_rgb565 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 2, /* TexelBytes */ _mesa_texstore_rgb565, /* StoreTexImageFunc */ fetch_texel_1d_rgb565, /* FetchTexel1D */ @@ -742,6 +769,7 @@ const struct gl_texture_format _mesa_texformat_rgb565_rev = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 2, /* TexelBytes */ _mesa_texstore_rgb565, /* StoreTexImageFunc */ fetch_texel_1d_rgb565_rev, /* FetchTexel1D */ @@ -765,6 +793,7 @@ const struct gl_texture_format _mesa_texformat_argb4444 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 2, /* TexelBytes */ _mesa_texstore_argb4444, /* StoreTexImageFunc */ fetch_texel_1d_argb4444, /* FetchTexel1D */ @@ -788,6 +817,7 @@ const struct gl_texture_format _mesa_texformat_argb4444_rev = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 2, /* TexelBytes */ _mesa_texstore_argb4444, /* StoreTexImageFunc */ fetch_texel_1d_argb4444_rev, /* FetchTexel1D */ @@ -811,6 +841,7 @@ const struct gl_texture_format _mesa_texformat_argb1555 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 2, /* TexelBytes */ _mesa_texstore_argb1555, /* StoreTexImageFunc */ fetch_texel_1d_argb1555, /* FetchTexel1D */ @@ -834,6 +865,7 @@ const struct gl_texture_format _mesa_texformat_argb1555_rev = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 2, /* TexelBytes */ _mesa_texstore_argb1555, /* StoreTexImageFunc */ fetch_texel_1d_argb1555_rev, /* FetchTexel1D */ @@ -857,6 +889,7 @@ const struct gl_texture_format _mesa_texformat_al88 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 2, /* TexelBytes */ _mesa_texstore_al88, /* StoreTexImageFunc */ fetch_texel_1d_al88, /* FetchTexel1D */ @@ -880,6 +913,7 @@ const struct gl_texture_format _mesa_texformat_al88_rev = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 2, /* TexelBytes */ _mesa_texstore_al88, /* StoreTexImageFunc */ fetch_texel_1d_al88_rev, /* FetchTexel1D */ @@ -903,6 +937,7 @@ const struct gl_texture_format _mesa_texformat_rgb332 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 1, /* TexelBytes */ _mesa_texstore_rgb332, /* StoreTexImageFunc */ fetch_texel_1d_rgb332, /* FetchTexel1D */ @@ -926,6 +961,7 @@ const struct gl_texture_format _mesa_texformat_a8 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 1, /* TexelBytes */ _mesa_texstore_a8, /* StoreTexImageFunc */ fetch_texel_1d_a8, /* FetchTexel1D */ @@ -949,6 +985,7 @@ const struct gl_texture_format _mesa_texformat_l8 = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 1, /* TexelBytes */ _mesa_texstore_a8,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_l8, /* FetchTexel1D */ @@ -972,6 +1009,7 @@ const struct gl_texture_format _mesa_texformat_i8 = { 8, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 1, /* TexelBytes */ _mesa_texstore_a8,/*yes*/ /* StoreTexImageFunc */ fetch_texel_1d_i8, /* FetchTexel1D */ @@ -995,6 +1033,7 @@ const struct gl_texture_format _mesa_texformat_ci8 = { 0, /* IntensityBits */ 8, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 1, /* TexelBytes */ _mesa_texstore_ci8, /* StoreTexImageFunc */ fetch_texel_1d_ci8, /* FetchTexel1D */ @@ -1018,6 +1057,7 @@ const struct gl_texture_format _mesa_texformat_ycbcr = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 2, /* TexelBytes */ _mesa_texstore_ycbcr, /* StoreTexImageFunc */ fetch_texel_1d_ycbcr, /* FetchTexel1D */ @@ -1041,6 +1081,7 @@ const struct gl_texture_format _mesa_texformat_ycbcr_rev = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 2, /* TexelBytes */ _mesa_texstore_ycbcr, /* StoreTexImageFunc */ fetch_texel_1d_ycbcr_rev, /* FetchTexel1D */ @@ -1052,6 +1093,30 @@ const struct gl_texture_format _mesa_texformat_ycbcr_rev = { store_texel_ycbcr_rev /* StoreTexel */ }; +const struct gl_texture_format _mesa_texformat_z24_s8 = { + MESA_FORMAT_Z24_S8, /* MesaFormat */ + GL_DEPTH_STENCIL_EXT, /* BaseFormat */ + GL_UNSIGNED_NORMALIZED_ARB, /* DataType */ + 0, /* RedBits */ + 0, /* GreenBits */ + 0, /* BlueBits */ + 0, /* AlphaBits */ + 0, /* LuminanceBits */ + 0, /* IntensityBits */ + 0, /* IndexBits */ + 24, /* DepthBits */ + 8, /* StencilBits */ + 4, /* TexelBytes */ + NULL/*_mesa_texstore_z24_s8*/, /* StoreTexImageFunc */ + NULL, /* FetchTexel1D */ + NULL, /* FetchTexel2D */ + NULL, /* FetchTexel3D */ + fetch_texel_1d_f_z24_s8, /* FetchTexel1Df */ + fetch_texel_2d_f_z24_s8, /* FetchTexel2Df */ + fetch_texel_3d_f_z24_s8, /* FetchTexel3Df */ + store_texel_z24_s8 /* StoreTexel */ +}; + /*@}*/ @@ -1071,6 +1136,7 @@ const struct gl_texture_format _mesa_null_texformat = { 0, /* IntensityBits */ 0, /* IndexBits */ 0, /* DepthBits */ + 0, /* StencilBits */ 0, /* TexelBytes */ NULL, /* StoreTexImageFunc */ fetch_null_texel, /* FetchTexel1D */ @@ -1316,6 +1382,16 @@ _mesa_choose_tex_format( GLcontext *ctx, GLint internalFormat, } } + if (ctx->Extensions.EXT_packed_depth_stencil) { + switch (internalFormat) { + case GL_DEPTH_STENCIL_EXT: + case GL_DEPTH24_STENCIL8_EXT: + return &_mesa_texformat_z24_s8; + default: + ; /* fallthrough */ + } + } + _mesa_problem(ctx, "unexpected format in _mesa_choose_tex_format()"); return NULL; } diff --git a/src/mesa/main/texformat.h b/src/mesa/main/texformat.h index 35522d6..63f524b 100644 --- a/src/mesa/main/texformat.h +++ b/src/mesa/main/texformat.h @@ -83,6 +83,7 @@ enum _format { MESA_FORMAT_CI8, /* CCCC CCCC */ MESA_FORMAT_YCBCR, /* YYYY YYYY UorV UorV */ MESA_FORMAT_YCBCR_REV, /* UorV UorV YYYY YYYY */ + MESA_FORMAT_Z24_S8, /* ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ ZZZZ SSSS SSSS */ /*@}*/ /** @@ -197,7 +198,7 @@ extern const struct gl_texture_format _mesa_texformat_a8; extern const struct gl_texture_format _mesa_texformat_l8; extern const struct gl_texture_format _mesa_texformat_i8; extern const struct gl_texture_format _mesa_texformat_ci8; - +extern const struct gl_texture_format _mesa_texformat_z24_s8; /*@}*/ /** \name YCbCr formats */ diff --git a/src/mesa/main/texformat_tmp.h b/src/mesa/main/texformat_tmp.h index f060179..92df277 100644 --- a/src/mesa/main/texformat_tmp.h +++ b/src/mesa/main/texformat_tmp.h @@ -1215,6 +1215,30 @@ static void store_texel_ycbcr_rev(struct gl_texture_image *texImage, #endif +/* MESA_TEXFORMAT_Z24_S8 ***************************************************/ + +static void FETCH(f_z24_s8)( const struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, GLfloat *texel ) +{ + /* only return Z, not stencil data */ + const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + const GLfloat scale = 0xffffff; + texel[0] = *src * scale; +} + +#if DIM == 3 +static void store_texel_z24_s8(struct gl_texture_image *texImage, + GLint i, GLint j, GLint k, const void *texel) +{ + /* only store Z, not stencil */ + GLuint *dst = TEXEL_ADDR(GLuint, texImage, i, j, k, 1); + GLfloat z = *((GLfloat *) texel); + GLuint zi = ((GLuint) (z * 0xffffff)) << 8; + *dst = zi | (*dst & 0xff); +} +#endif + + #undef TEXEL_ADDR #undef DIM diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c index c19e5b0..db78a6d 100644 --- a/src/mesa/main/teximage.c +++ b/src/mesa/main/teximage.c @@ -341,6 +341,16 @@ _mesa_base_tex_format( GLcontext *ctx, GLint internalFormat ) } } + if (ctx->Extensions.EXT_packed_depth_stencil) { + switch (internalFormat) { + case GL_DEPTH_STENCIL_EXT: + case GL_DEPTH24_STENCIL8_EXT: + return GL_DEPTH_STENCIL_EXT; + default: + ; /* fallthrough */ + } + } + return -1; /* error */ } @@ -496,6 +506,23 @@ is_ycbcr_format(GLenum format) /** + * Test if the given image format is a Depth/Stencil format. + */ +static GLboolean +is_depthstencil_format(GLenum format) +{ + switch (format) { + case GL_DEPTH24_STENCIL8_EXT: + case GL_DEPTH_STENCIL_EXT: + return GL_TRUE; + default: + return GL_FALSE; + } +} + + + +/** * Test if it is a supported compressed format. * * \param internalFormat the internal format token provided by the user. @@ -1369,7 +1396,8 @@ texture_error_check( GLcontext *ctx, GLenum target, if ((is_color_format(internalFormat) && !colorFormat && !indexFormat) || (is_index_format(internalFormat) && !indexFormat) || (is_depth_format(internalFormat) != is_depth_format(format)) || - (is_ycbcr_format(internalFormat) != is_ycbcr_format(format))) { + (is_ycbcr_format(internalFormat) != is_ycbcr_format(format)) || + (is_depthstencil_format(internalFormat) != is_depthstencil_format(format))) { if (!isProxy) _mesa_error(ctx, GL_INVALID_OPERATION, "glTexImage(internalFormat/format)"); @@ -1992,6 +2020,11 @@ _mesa_GetTexImage( GLenum target, GLint level, GLenum format, _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)"); } + if (!ctx->Extensions.EXT_packed_depth_stencil + && is_depthstencil_format(format)) { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)"); + } + if (!pixels) return; @@ -2026,6 +2059,11 @@ _mesa_GetTexImage( GLenum target, GLint level, GLenum format, _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)"); return; } + else if (is_depthstencil_format(format) + && !is_depthstencil_format(texImage->TexFormat->BaseFormat)) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)"); + return; + } /* typically, this will call _mesa_get_teximage() */ ctx->Driver.GetTexImage(ctx, target, level, format, type, pixels, diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c index d427a5e..2cc7eb5 100644 --- a/src/mesa/main/texstate.c +++ b/src/mesa/main/texstate.c @@ -1778,6 +1778,15 @@ _mesa_GetTexLevelParameteriv( GLenum target, GLint level, _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(pname)"); return; + case GL_TEXTURE_STENCIL_SIZE_EXT: + if (ctx->Extensions.EXT_packed_depth_stencil) { + *params = img->TexFormat->StencilBits; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetTexLevelParameter[if]v(pname)"); + } + return; /* GL_ARB_texture_compression */ case GL_TEXTURE_COMPRESSED_IMAGE_SIZE: @@ -1867,6 +1876,7 @@ _mesa_GetTexLevelParameteriv( GLenum target, GLint level, "glGetTexLevelParameter[if]v(pname)"); } return; + default: _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(pname)"); diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c index 53be319..ccdb81c 100644 --- a/src/mesa/main/texstore.c +++ b/src/mesa/main/texstore.c @@ -881,7 +881,8 @@ _mesa_texstore_depth_component_float32(STORE_PARAMS) for (row = 0; row < srcHeight; row++) { const GLvoid *src = _mesa_image_address(dims, srcPacking, srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0); - _mesa_unpack_depth_span(ctx, srcWidth, (GLfloat *) dstRow, + _mesa_unpack_depth_span(ctx, srcWidth, + GL_FLOAT, (GLfloat *) dstRow, 1.0F, srcType, src, srcPacking); dstRow += dstRowStride; } @@ -920,19 +921,16 @@ _mesa_texstore_depth_component16(STORE_PARAMS) + dstZoffset * dstImageStride + dstYoffset * dstRowStride + dstXoffset * dstFormat->TexelBytes; - GLint img, row, col; + GLint img, row; for (img = 0; img < srcDepth; img++) { GLubyte *dstRow = dstImage; for (row = 0; row < srcHeight; row++) { - GLfloat depthTemp[MAX_WIDTH]; const GLvoid *src = _mesa_image_address(dims, srcPacking, srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0); GLushort *dst16 = (GLushort *) dstRow; - _mesa_unpack_depth_span(ctx, srcWidth, depthTemp, + _mesa_unpack_depth_span(ctx, srcWidth, + GL_UNSIGNED_SHORT, dst16, 65535.0F, srcType, src, srcPacking); - for (col = 0; col < srcWidth; col++) { - dst16[col] = (GLushort) (depthTemp[col] * 65535.0F); - } dstRow += dstRowStride; } dstImage += dstImageStride; @@ -4071,6 +4069,10 @@ _mesa_get_teximage(GLcontext *ctx, GLenum target, GLint level, _mesa_swap2((GLushort *) dest, width); } } + else if (format == GL_DEPTH_STENCIL_EXT) { + /* XXX special case */ + + } else { /* general case: convert row to RGBA format */ GLfloat rgba[MAX_WIDTH][4]; diff --git a/src/mesa/main/texstore.h b/src/mesa/main/texstore.h index 0b91f20..381f610 100644 --- a/src/mesa/main/texstore.h +++ b/src/mesa/main/texstore.h @@ -1,6 +1,6 @@ /* * Mesa 3-D graphics library - * Version: 6.3 + * Version: 6.5 * * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. * @@ -71,6 +71,7 @@ extern GLboolean _mesa_texstore_rgb332(STORE_PARAMS); extern GLboolean _mesa_texstore_a8(STORE_PARAMS); extern GLboolean _mesa_texstore_ci8(STORE_PARAMS); extern GLboolean _mesa_texstore_ycbcr(STORE_PARAMS); +extern GLboolean _mesa_texstore_z24_s8(STORE_PARAMS); extern GLboolean _mesa_texstore_rgba_float32(STORE_PARAMS); extern GLboolean _mesa_texstore_rgba_float16(STORE_PARAMS); extern GLboolean _mesa_texstore_rgb_fxt1(STORE_PARAMS); diff --git a/src/mesa/swrast/s_copypix.c b/src/mesa/swrast/s_copypix.c index ed6a02e..4b8c7c4 100644 --- a/src/mesa/swrast/s_copypix.c +++ b/src/mesa/swrast/s_copypix.c @@ -699,6 +699,16 @@ copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy, } +static void +copy_depth_stencil_pixels(GLcontext *ctx, GLint srcx, GLint srcy, + GLint width, GLint height, GLint destx, GLint desty) +{ + + + +} + + /** * Do software-based glCopyPixels. * By time we get here, all parameters will have been error-checked. @@ -729,6 +739,9 @@ _swrast_CopyPixels( GLcontext *ctx, case GL_STENCIL: copy_stencil_pixels( ctx, srcx, srcy, width, height, destx, desty ); break; + case GL_DEPTH_STENCIL_EXT: + copy_depth_stencil_pixels(ctx, srcx, srcy, width, height, destx, desty); + break; default: _mesa_problem(ctx, "unexpected type in _swrast_CopyPixels"); } diff --git a/src/mesa/swrast/s_drawpix.c b/src/mesa/swrast/s_drawpix.c index d908ca4..c1f33a2 100644 --- a/src/mesa/swrast/s_drawpix.c +++ b/src/mesa/swrast/s_drawpix.c @@ -641,7 +641,6 @@ draw_depth_pixels( GLcontext *ctx, GLint x, GLint y, ? MAX_WIDTH : (width - skipPixels); ASSERT(span.end <= MAX_WIDTH); for (row = 0; row < height; row++, spanY++) { - GLfloat floatSpan[MAX_WIDTH]; const GLvoid *zSrc = _mesa_image_address2d(unpack, pixels, width, height, GL_DEPTH_COMPONENT, type, @@ -654,15 +653,9 @@ draw_depth_pixels( GLcontext *ctx, GLint x, GLint y, span.y = spanY; span.end = spanEnd; - _mesa_unpack_depth_span(ctx, span.end, floatSpan, type, - zSrc, unpack); - /* clamp depth values to [0,1] and convert from floats to ints */ - { - GLuint i; - for (i = 0; i < span.end; i++) { - span.array->z[i] = (GLuint) (floatSpan[i] * depthMax); - } - } + _mesa_unpack_depth_span(ctx, span.end, + GL_UNSIGNED_INT, span.array->z, depthMax, + type, zSrc, unpack); if (zoom) { _swrast_write_zoomed_depth_span(ctx, &span, desty, skipPixels); } @@ -840,6 +833,102 @@ draw_rgba_pixels( GLcontext *ctx, GLint x, GLint y, } + +static void +draw_depth_stencil_pixels(GLcontext *ctx, GLint x, GLint y, + GLsizei width, GLsizei height, GLenum type, + const struct gl_pixelstore_attrib *unpack, + const GLvoid *pixels) +{ + const GLfloat depthScale = ctx->DrawBuffer->_DepthMaxF; + const GLuint stencilMask = ctx->Stencil.WriteMask[0]; + const GLuint stencilType = (STENCIL_BITS == 8) ? + GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT; + const GLboolean zoom = ctx->Pixel.ZoomX != 1.0 || ctx->Pixel.ZoomY != 1.0; + struct gl_renderbuffer *depthRb, *stencilRb; + struct gl_pixelstore_attrib clippedUnpack = *unpack; + GLint i; + + depthRb = ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer; + stencilRb = ctx->DrawBuffer->Attachment[BUFFER_STENCIL].Renderbuffer; + + ASSERT(depthRb); + ASSERT(stencilRb); + + if (!zoom) { + if (!_mesa_clip_drawpixels(ctx, &x, &y, &width, &height, + &clippedUnpack)) { + /* totally clipped */ + return; + } + } + + /* XXX need to do pixelzoom! */ + + for (i = 0; i < height; i++) { + const GLuint *depthStencilSrc = (const GLuint *) + _mesa_image_address2d(&clippedUnpack, pixels, width, height, + GL_DEPTH_STENCIL_EXT, type, i, 0); + + if (ctx->Depth.Mask) { + if (ctx->Pixel.DepthScale == 1.0F && ctx->Pixel.DepthBias == 0.0F + && depthRb->DepthBits == 24) { + /* fast path 24-bit zbuffer */ + GLuint zValues[MAX_WIDTH]; + GLint j; + ASSERT(depthRb->DataType == GL_UNSIGNED_INT); + for (j = 0; j < width; j++) { + zValues[j] = depthStencilSrc[j] >> 8; + } + if (zoom) + ; + else + depthRb->PutRow(ctx, depthRb, width, x, y + i, zValues, NULL); + } + else if (ctx->Pixel.DepthScale == 1.0F && ctx->Pixel.DepthBias == 0.0F + && depthRb->DepthBits == 16) { + /* fast path 16-bit zbuffer */ + GLushort zValues[MAX_WIDTH]; + GLint j; + ASSERT(depthRb->DataType == GL_UNSIGNED_SHORT); + for (j = 0; j < width; j++) { + zValues[j] = depthStencilSrc[j] >> 16; + } + if (zoom) + ; + else + depthRb->PutRow(ctx, depthRb, width, x, y + i, zValues, NULL); + } + else { + /* general case */ + GLuint zValues[MAX_WIDTH]; + _mesa_unpack_depth_span(ctx, width, + depthRb->DataType, zValues, depthScale, + type, depthStencilSrc, &clippedUnpack); + if (zoom) + ; + else + depthRb->PutRow(ctx, depthRb, width, x, y + i, zValues, NULL); + } + } + + if (stencilMask != 0x0) { + GLstencil stencilValues[MAX_WIDTH]; + /* get stencil values, with shift/offset/mapping */ + _mesa_unpack_stencil_span(ctx, width, stencilType, stencilValues, + type, depthStencilSrc, &clippedUnpack, + ctx->_ImageTransferState); + if (zoom) + ; + else + _swrast_write_stencil_span(ctx, width, x, y + i, stencilValues); + } + + } +} + + + /** * Execute software-based glDrawPixels. * By time we get here, all error checking will have been done. @@ -905,6 +994,10 @@ _swrast_DrawPixels( GLcontext *ctx, case GL_ABGR_EXT: draw_rgba_pixels(ctx, x, y, width, height, format, type, unpack, pixels); break; + case GL_DEPTH_STENCIL_EXT: + draw_depth_stencil_pixels(ctx, x, y, width, height, + type, unpack, pixels); + break; default: _mesa_problem(ctx, "unexpected format in _swrast_DrawPixels"); /* don't return yet, clean-up */ diff --git a/src/mesa/swrast/s_readpix.c b/src/mesa/swrast/s_readpix.c index 423661a..984205d 100644 --- a/src/mesa/swrast/s_readpix.c +++ b/src/mesa/swrast/s_readpix.c @@ -105,7 +105,7 @@ read_depth_pixels( GLcontext *ctx, bias_or_scale = ctx->Pixel.DepthBias != 0.0 || ctx->Pixel.DepthScale != 1.0; - if (type == GL_UNSIGNED_SHORT && fb->Visual.depthBits == 16 + if (type == GL_UNSIGNED_SHORT && rb->DepthBits == 16 && !bias_or_scale && !packing->SwapBytes) { /* Special case: directly read 16-bit unsigned depth values. */ GLint j; @@ -117,7 +117,25 @@ read_depth_pixels( GLcontext *ctx, rb->GetRow(ctx, rb, width, x, y, dest); } } - else if (type == GL_UNSIGNED_INT && fb->Visual.depthBits == 32 + else if (type == GL_UNSIGNED_INT && rb->DepthBits == 24 + && !bias_or_scale && !packing->SwapBytes) { + /* Special case: directly read 24-bit unsigned depth values. */ + GLint j; + ASSERT(rb->InternalFormat == GL_DEPTH_COMPONENT32); + ASSERT(rb->DataType == GL_UNSIGNED_INT); + for (j = 0; j < height; j++, y++) { + GLuint *dest = (GLuint *) + _mesa_image_address2d(packing, pixels, width, height, + GL_DEPTH_COMPONENT, type, j, 0); + GLint k; + rb->GetRow(ctx, rb, width, x, y, dest); + /* convert range from 24-bit to 32-bit */ + for (k = 0; k < width; k++) { + dest[k] = (dest[k] << 8) | (dest[k] >> 24); + } + } + } + else if (type == GL_UNSIGNED_INT && rb->DepthBits == 32 && !bias_or_scale && !packing->SwapBytes) { /* Special case: directly read 32-bit unsigned depth values. */ GLint j; @@ -396,6 +414,77 @@ read_rgba_pixels( GLcontext *ctx, /** + * Read combined depth/stencil values. + * We'll have already done error checking to be sure the expected + * depth and stencil buffers really exist. + */ +static void +read_depth_stencil_pixels(GLcontext *ctx, + GLint x, GLint y, + GLsizei width, GLsizei height, + GLenum type, GLvoid *pixels, + const struct gl_pixelstore_attrib *packing ) +{ + struct gl_renderbuffer *depthRb, *stencilRb; + GLint i; + + depthRb = ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer; + stencilRb = ctx->ReadBuffer->Attachment[BUFFER_STENCIL].Renderbuffer; + + ASSERT(depthRb); + ASSERT(stencilRb); + + for (i = 0; i < height; i++) { + GLuint zVals[MAX_WIDTH]; /* 24-bit values! */ + GLstencil stencilVals[MAX_WIDTH]; + GLint j; + + GLuint *depthStencilDst = (GLuint *) + _mesa_image_address2d(packing, pixels, width, height, + GL_DEPTH_STENCIL_EXT, type, i, 0); + + /* get depth values */ + if (ctx->Pixel.DepthScale == 1.0 + && ctx->Pixel.DepthBias == 0.0 + && depthRb->DepthBits == 24) { + /* ideal case */ + ASSERT(depthRb->DataType == GL_UNSIGNED_INT); + /* note, we've already been clipped */ + depthRb->GetRow(ctx, depthRb, width, x, y + i, zVals); + } + else { + /* general case */ + GLfloat depthVals[MAX_WIDTH]; + _swrast_read_depth_span_float(ctx, depthRb, width, x, y + i, + depthVals); + if (ctx->Pixel.DepthScale != 1.0 || ctx->Pixel.DepthBias != 0.0) { + _mesa_scale_and_bias_depth(ctx, width, depthVals); + } + /* convert to 24-bit GLuints */ + for (j = 0; j < width; j++) { + zVals[j] = FLOAT_TO_UINT(depthVals[j]) >> 8; + } + } + + /* get stencil values */ + _swrast_read_stencil_span(ctx, stencilRb, width, x, y + i, stencilVals); + if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset) { + _mesa_shift_and_offset_stencil(ctx, width, stencilVals); + } + if (ctx->Pixel.MapStencilFlag) { + _mesa_map_stencil(ctx, width, stencilVals); + } + + for (j = 0; j < width; j++) { + /* build combined Z/stencil values */ + depthStencilDst[j] = (zVals[j] << 8) | (stencilVals[j] & 0xff); + } + } +} + + + +/** * Software fallback routine for ctx->Driver.ReadPixels(). * By time we get here, all error checking will have been done. */ @@ -407,19 +496,13 @@ _swrast_ReadPixels( GLcontext *ctx, GLvoid *pixels ) { SWcontext *swrast = SWRAST_CONTEXT(ctx); - struct gl_pixelstore_attrib clippedPacking; + struct gl_pixelstore_attrib clippedPacking = *packing; if (swrast->NewState) _swrast_validate_derived( ctx ); /* Do all needed clipping here, so that we can forget about it later */ - clippedPacking = *packing; - if (clippedPacking.RowLength == 0) { - clippedPacking.RowLength = width; - } - if (!_mesa_clip_readpixels(ctx, &x, &y, &width, &height, - &clippedPacking.SkipPixels, - &clippedPacking.SkipRows)) { + if (!_mesa_clip_readpixels(ctx, &x, &y, &width, &height, &clippedPacking)) { /* The ReadPixels region is totally outside the window bounds */ return; } @@ -473,6 +556,10 @@ _swrast_ReadPixels( GLcontext *ctx, read_rgba_pixels(ctx, x, y, width, height, format, type, pixels, &clippedPacking); break; + case GL_DEPTH_STENCIL_EXT: + read_depth_stencil_pixels(ctx, x, y, width, height, + type, pixels, &clippedPacking); + break; default: _mesa_problem(ctx, "unexpected format in _swrast_ReadPixels"); /* don't return yet, clean-up */ diff --git a/src/mesa/swrast/s_zoom.c b/src/mesa/swrast/s_zoom.c index 580e25e..dfbc691 100644 --- a/src/mesa/swrast/s_zoom.c +++ b/src/mesa/swrast/s_zoom.c @@ -75,8 +75,7 @@ zoom_span( GLcontext *ctx, const struct sw_span *span, zoomed.interpMask = span->interpMask & ~SPAN_INDEX; zoomed.arrayMask |= SPAN_INDEX; } - else { - assert(format == GL_DEPTH_COMPONENT); + else if (format == GL_DEPTH_COMPONENT) { /* Copy color info */ zoomed.red = span->red; zoomed.green = span->green; @@ -90,6 +89,14 @@ zoom_span( GLcontext *ctx, const struct sw_span *span, zoomed.interpMask = span->interpMask & ~SPAN_Z; zoomed.arrayMask |= SPAN_Z; } + else if (format == GL_DEPTH_COMPONENT16 || + format == GL_DEPTH_COMPONENT32) { + /* writing Z values directly to depth buffer, bypassing fragment ops */ + } + else { + _mesa_problem(ctx, "Bad format in zoom_span"); + return; + } /* * Compute which columns to draw: [c0, c1) @@ -230,9 +237,8 @@ zoom_span( GLcontext *ctx, const struct sw_span *span, } } } - else { + else if (format == GL_DEPTH_COMPONENT) { const GLuint *zValues = (const GLuint *) src; - assert(format == GL_DEPTH_COMPONENT); if (ctx->Pixel.ZoomX == -1.0F) { /* common case */ for (j = (GLint) zoomed.start; j < (GLint) zoomed.end; j++) { @@ -260,7 +266,26 @@ zoom_span( GLcontext *ctx, const struct sw_span *span, else format = GL_COLOR_INDEX; } - + else if (format == GL_DEPTH_COMPONENT32) { + /* 32-bit Z values */ + struct gl_renderbuffer *rb + = ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer; + const GLuint *zSrc32 = (const GLuint *) src; + GLuint zDst32[MAX_WIDTH]; + const GLfloat xscale = 1.0F / ctx->Pixel.ZoomX; + for (j = (GLint) zoomed.start; j < (GLint) zoomed.end; j++) { + i = (GLint) ((j + skipCol) * xscale); + if (ctx->Pixel.ZoomX < 0.0) { + ASSERT(i <= 0); + i = span->end + i - 1; + } + ASSERT(i >= 0); + ASSERT(i < (GLint) span->end); + zDst32[j] = zSrc32[i]; + } + rb->PutRow(ctx, rb, zoomed.end, zoomed.x, zoomed.y, zDst32, NULL); + return; + } /* write the span in rows [r0, r1) */ if (format == GL_RGBA || format == GL_RGB) {