From 9f344b3e7d6e23674dd4747faec253f103563b36 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Wed, 9 Aug 2006 19:14:05 +0000 Subject: Add Intel i965G/Q DRI driver. This driver comes from Tungsten Graphics, with a few further modifications by Intel. --- src/mesa/drivers/dri/i965/intel_regions.c | 289 ++++++++++++++++++++++++++++++ 1 file changed, 289 insertions(+) create mode 100644 src/mesa/drivers/dri/i965/intel_regions.c (limited to 'src/mesa/drivers/dri/i965/intel_regions.c') diff --git a/src/mesa/drivers/dri/i965/intel_regions.c b/src/mesa/drivers/dri/i965/intel_regions.c new file mode 100644 index 0000000000..e2cb427304 --- /dev/null +++ b/src/mesa/drivers/dri/i965/intel_regions.c @@ -0,0 +1,289 @@ +/************************************************************************** + * + * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas. + * 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, sub license, 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 (including the + * next paragraph) 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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. + * + **************************************************************************/ + +/* Provide additional functionality on top of bufmgr buffers: + * - 2d semantics and blit operations + * - refcounting of buffers for multiple images in a buffer. + * - refcounting of buffer mappings. + * - some logic for moving the buffers to the best memory pools for + * given operations. + * + * Most of this is to make it easier to implement the fixed-layout + * mipmap tree required by intel hardware in the face of GL's + * programming interface where each image can be specifed in random + * order and it isn't clear what layout the tree should have until the + * last moment. + */ + +#include "intel_context.h" +#include "intel_regions.h" +#include "intel_blit.h" +#include "bufmgr.h" +#include "imports.h" + +/* XXX: Thread safety? + */ +GLubyte *intel_region_map(struct intel_context *intel, struct intel_region *region) +{ + DBG("%s\n", __FUNCTION__); + if (!region->map_refcount++) { + region->map = bmMapBuffer(intel, region->buffer, 0); + } + + return region->map; +} + +void intel_region_unmap(struct intel_context *intel, + struct intel_region *region) +{ + DBG("%s\n", __FUNCTION__); + if (!--region->map_refcount) { + bmUnmapBufferAUB(intel, region->buffer, 0, 0); + region->map = NULL; + } +} + +struct intel_region *intel_region_alloc( struct intel_context *intel, + GLuint cpp, + GLuint pitch, + GLuint height ) +{ + struct intel_region *region = calloc(sizeof(*region), 1); + + DBG("%s %dx%dx%d == 0x%x bytes\n", __FUNCTION__, + cpp, pitch, height, cpp*pitch*height); + + region->cpp = cpp; + region->pitch = pitch; + region->height = height; /* needed? */ + region->refcount = 1; + + bmGenBuffers(intel, "tex", 1, ®ion->buffer); + bmBufferData(intel, region->buffer, pitch * cpp * height, NULL, 0); + + return region; +} + +void intel_region_reference( struct intel_region **dst, + struct intel_region *src) +{ + src->refcount++; + assert(*dst == NULL); + *dst = src; +} + +void intel_region_release( struct intel_context *intel, + struct intel_region **region ) +{ + if (!*region) + return; + + DBG("%s %d\n", __FUNCTION__, (*region)->refcount-1); + + if (--(*region)->refcount == 0) { + assert((*region)->map_refcount == 0); + bmDeleteBuffers(intel, 1, &(*region)->buffer); + free(*region); + } + *region = NULL; +} + + +struct intel_region *intel_region_create_static( struct intel_context *intel, + GLuint mem_type, + GLuint offset, + void *virtual, + GLuint cpp, + GLuint pitch, + GLuint height, + GLboolean tiled ) +{ + struct intel_region *region = calloc(sizeof(*region), 1); + GLuint size = cpp * pitch * height; + GLint pool; + + DBG("%s\n", __FUNCTION__); + + region->cpp = cpp; + region->pitch = pitch; + region->height = height; /* needed? */ + region->refcount = 1; + region->tiled = tiled; + + /* Recipe for creating a static buffer - create a static pool with + * the right offset and size, generate a buffer and use a special + * call to bind it to all of the memory in that pool. + */ + pool = bmInitPool(intel, offset, virtual, size, + (BM_MEM_AGP | + BM_NO_UPLOAD | + BM_NO_EVICT | + BM_NO_MOVE)); + if (pool < 0) { + _mesa_printf("bmInitPool failed for static region\n"); + exit(1); + } + + region->buffer = bmGenBufferStatic(intel, pool); + + return region; +} + + + + +void _mesa_copy_rect( GLubyte *dst, + GLuint cpp, + GLuint dst_pitch, + GLuint dst_x, + GLuint dst_y, + GLuint width, + GLuint height, + const GLubyte *src, + GLuint src_pitch, + GLuint src_x, + GLuint src_y ) +{ + GLuint i; + + dst_pitch *= cpp; + src_pitch *= cpp; + dst += dst_x * cpp; + src += src_x * cpp; + dst += dst_y * dst_pitch; + src += src_y * dst_pitch; + width *= cpp; + + if (width == dst_pitch && + width == src_pitch) + do_memcpy(dst, src, height * width); + else { + for (i = 0; i < height; i++) { + do_memcpy(dst, src, width); + dst += dst_pitch; + src += src_pitch; + } + } +} + + +/* Upload data to a rectangular sub-region. Lots of choices how to do this: + * + * - memcpy by span to current destination + * - upload data as new buffer and blit + * + * Currently always memcpy. + */ +void intel_region_data(struct intel_context *intel, + struct intel_region *dst, + GLuint dst_offset, + GLuint dstx, GLuint dsty, + const void *src, GLuint src_pitch, + GLuint srcx, GLuint srcy, + GLuint width, GLuint height) +{ + + DBG("%s\n", __FUNCTION__); + + if (width == dst->pitch && + width == src_pitch && + dst_offset == 0 && + height == dst->height && + srcx == 0 && + srcy == 0) + { + bmBufferDataAUB(intel, + dst->buffer, + dst->cpp * width * dst->height, + src, + 0, + 0, /* DW_NOTYPE */ + 0); + } + else { + assert (dst_offset + dstx + width + + (dsty + height - 1) * dst->pitch * dst->cpp <= + dst->pitch * dst->cpp * dst->height); + + _mesa_copy_rect(intel_region_map(intel, dst) + dst_offset, + dst->cpp, + dst->pitch, + dstx, dsty, + width, height, + src, + src_pitch, + srcx, srcy); + + intel_region_unmap(intel, dst); + } +} + +/* Copy rectangular sub-regions. Need better logic about when to + * push buffers into AGP - will currently do so whenever possible. + */ +void intel_region_copy( struct intel_context *intel, + struct intel_region *dst, + GLuint dst_offset, + GLuint dstx, GLuint dsty, + struct intel_region *src, + GLuint src_offset, + GLuint srcx, GLuint srcy, + GLuint width, GLuint height ) +{ + DBG("%s\n", __FUNCTION__); + + assert(src->cpp == dst->cpp); + + intelEmitCopyBlit(intel, + dst->cpp, + src->pitch, src->buffer, src_offset, src->tiled, + dst->pitch, dst->buffer, dst_offset, dst->tiled, + srcx, srcy, + dstx, dsty, + width, height); +} + +/* Fill a rectangular sub-region. Need better logic about when to + * push buffers into AGP - will currently do so whenever possible. + */ +void intel_region_fill( struct intel_context *intel, + struct intel_region *dst, + GLuint dst_offset, + GLuint dstx, GLuint dsty, + GLuint width, GLuint height, + GLuint color ) +{ + DBG("%s\n", __FUNCTION__); + + intelEmitFillBlit(intel, + dst->cpp, + dst->pitch, dst->buffer, dst_offset, dst->tiled, + dstx, dsty, + width, height, + color ); +} + -- cgit v1.2.3