From 6d104cb932080c5c0d951fbc0ec6d30fb7ebef45 Mon Sep 17 00:00:00 2001 From: Alan Hourihane Date: Thu, 2 Nov 2006 12:02:13 +0000 Subject: merge current trunk into vbo branch --- src/mesa/drivers/dri/i915tex/intel_pixel_copy.c | 380 ++++++++++++++++++++++++ 1 file changed, 380 insertions(+) create mode 100644 src/mesa/drivers/dri/i915tex/intel_pixel_copy.c (limited to 'src/mesa/drivers/dri/i915tex/intel_pixel_copy.c') diff --git a/src/mesa/drivers/dri/i915tex/intel_pixel_copy.c b/src/mesa/drivers/dri/i915tex/intel_pixel_copy.c new file mode 100644 index 0000000000..5eb021f008 --- /dev/null +++ b/src/mesa/drivers/dri/i915tex/intel_pixel_copy.c @@ -0,0 +1,380 @@ +/************************************************************************** + * + * Copyright 2003 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. + * + **************************************************************************/ + +#include "glheader.h" +#include "enums.h" +#include "image.h" +#include "state.h" +#include "mtypes.h" +#include "macros.h" +#include "swrast/swrast.h" + +#include "intel_screen.h" +#include "intel_context.h" +#include "intel_ioctl.h" +#include "intel_batchbuffer.h" +#include "intel_buffers.h" +#include "intel_blit.h" +#include "intel_regions.h" +#include "intel_tris.h" +#include "intel_pixel.h" + +#define FILE_DEBUG_FLAG DEBUG_PIXEL + +static struct intel_region * +copypix_src_region(struct intel_context *intel, GLenum type) +{ + switch (type) { + case GL_COLOR: + return intel_readbuf_region(intel); + case GL_DEPTH: + /* Don't think this is really possible execpt at 16bpp, when we have no stencil. + */ + if (intel->intelScreen->depth_region && + intel->intelScreen->depth_region->cpp == 2) + return intel->intelScreen->depth_region; + case GL_STENCIL: + /* Don't think this is really possible. + */ + break; + case GL_DEPTH_STENCIL_EXT: + /* Does it matter whether it is stencil/depth or depth/stencil? + */ + return intel->intelScreen->depth_region; + default: + break; + } + + return NULL; +} + + +/** + * Check if any fragment operations are in effect which might effect + * glCopyPixels. Differs from intel_check_blit_fragment_ops in that + * we allow Scissor. + */ +static GLboolean +intel_check_copypixel_blit_fragment_ops(GLcontext * ctx) +{ + if (ctx->NewState) + _mesa_update_state(ctx); + + /* Could do logicop with the blitter: + */ + return !(ctx->_ImageTransferState || + ctx->Color.AlphaEnabled || + ctx->Depth.Test || + ctx->Fog.Enabled || + ctx->Stencil.Enabled || + !ctx->Color.ColorMask[0] || + !ctx->Color.ColorMask[1] || + !ctx->Color.ColorMask[2] || + !ctx->Color.ColorMask[3] || + ctx->Color.ColorLogicOpEnabled || + ctx->Texture._EnabledUnits || + ctx->FragmentProgram._Enabled); +} + +/* Doesn't work for overlapping regions. Could do a double copy or + * just fallback. + */ +static GLboolean +do_texture_copypixels(GLcontext * ctx, + GLint srcx, GLint srcy, + GLsizei width, GLsizei height, + GLint dstx, GLint dsty, GLenum type) +{ + struct intel_context *intel = intel_context(ctx); + struct intel_region *dst = intel_drawbuf_region(intel); + struct intel_region *src = copypix_src_region(intel, type); + GLenum src_format; + GLenum src_type; + + DBG("%s %d,%d %dx%d --> %d,%d\n", __FUNCTION__, + srcx, srcy, width, height, dstx, dsty); + + if (!src || !dst || type != GL_COLOR) + return GL_FALSE; + + /* Can't handle overlapping regions. Don't have sufficient control + * over rasterization to pull it off in-place. Punt on these for + * now. + * + * XXX: do a copy to a temporary. + */ + if (src->buffer == dst->buffer) { + drm_clip_rect_t srcbox; + drm_clip_rect_t dstbox; + drm_clip_rect_t tmp; + + srcbox.x1 = srcx; + srcbox.y1 = srcy; + srcbox.x2 = srcx + width; + srcbox.y2 = srcy + height; + + dstbox.x1 = dstx; + dstbox.y1 = dsty; + dstbox.x2 = dstx + width * ctx->Pixel.ZoomX; + dstbox.y2 = dsty + height * ctx->Pixel.ZoomY; + + DBG("src %d,%d %d,%d\n", srcbox.x1, srcbox.y1, srcbox.x2, srcbox.y2); + DBG("dst %d,%d %d,%d (%dx%d) (%f,%f)\n", dstbox.x1, dstbox.y1, dstbox.x2, dstbox.y2, + width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY); + + if (intel_intersect_cliprects(&tmp, &srcbox, &dstbox)) { + DBG("%s: regions overlap\n", __FUNCTION__); + return GL_FALSE; + } + } + + intelFlush(&intel->ctx); + + intel->vtbl.install_meta_state(intel); + + /* Is this true? Also will need to turn depth testing on according + * to state: + */ + intel->vtbl.meta_no_stencil_write(intel); + intel->vtbl.meta_no_depth_write(intel); + + /* Set the 3d engine to draw into the destination region: + */ + intel->vtbl.meta_draw_region(intel, dst, intel->intelScreen->depth_region); + + intel->vtbl.meta_import_pixel_state(intel); + + if (src->cpp == 2) { + src_format = GL_RGB; + src_type = GL_UNSIGNED_SHORT_5_6_5; + } + else { + src_format = GL_BGRA; + src_type = GL_UNSIGNED_BYTE; + } + + /* Set the frontbuffer up as a large rectangular texture. + */ + if (!intel->vtbl.meta_tex_rect_source(intel, src->buffer, 0, + src->pitch, + src->height, src_format, src_type)) { + intel->vtbl.leave_meta_state(intel); + return GL_FALSE; + } + + + intel->vtbl.meta_texture_blend_replace(intel); + + LOCK_HARDWARE(intel); + + if (intel->driDrawable->numClipRects) { + __DRIdrawablePrivate *dPriv = intel->driDrawable; + + + srcy = dPriv->h - srcy - height; /* convert from gl to hardware coords */ + + srcx += dPriv->x; + srcy += dPriv->y; + + /* Clip against the source region. This is the only source + * clipping we do. XXX: Just set the texcord wrap mode to clamp + * or similar. + * + */ + if (0) { + GLint orig_x = srcx; + GLint orig_y = srcy; + + if (!_mesa_clip_to_region(0, 0, src->pitch, src->height, + &srcx, &srcy, &width, &height)) + goto out; + + dstx += srcx - orig_x; + dsty += (srcy - orig_y) * ctx->Pixel.ZoomY; + } + + /* Just use the regular cliprect mechanism... Does this need to + * even hold the lock??? + */ + intel_meta_draw_quad(intel, + dstx, + dstx + width * ctx->Pixel.ZoomX, + dPriv->h - (dsty + height * ctx->Pixel.ZoomY), + dPriv->h - (dsty), 0, /* XXX: what z value? */ + 0x00ff00ff, + srcx, srcx + width, srcy, srcy + height); + + out: + intel->vtbl.leave_meta_state(intel); + intel_batchbuffer_flush(intel->batch); + } + UNLOCK_HARDWARE(intel); + + DBG("%s: success\n", __FUNCTION__); + return GL_TRUE; +} + + + + + +/** + * CopyPixels with the blitter. Don't support zooming, pixel transfer, etc. + */ +static GLboolean +do_blit_copypixels(GLcontext * ctx, + GLint srcx, GLint srcy, + GLsizei width, GLsizei height, + GLint dstx, GLint dsty, GLenum type) +{ + struct intel_context *intel = intel_context(ctx); + struct intel_region *dst = intel_drawbuf_region(intel); + struct intel_region *src = copypix_src_region(intel, type); + + /* Copypixels can be more than a straight copy. Ensure all the + * extra operations are disabled: + */ + if (!intel_check_copypixel_blit_fragment_ops(ctx) || + ctx->Pixel.ZoomX != 1.0F || ctx->Pixel.ZoomY != 1.0F) + return GL_FALSE; + + if (!src || !dst) + return GL_FALSE; + + + + intelFlush(&intel->ctx); + + LOCK_HARDWARE(intel); + + if (intel->driDrawable->numClipRects) { + __DRIdrawablePrivate *dPriv = intel->driDrawable; + drm_clip_rect_t *box = dPriv->pClipRects; + drm_clip_rect_t dest_rect; + GLint nbox = dPriv->numClipRects; + GLint delta_x = 0; + GLint delta_y = 0; + GLuint i; + + /* Do scissoring in GL coordinates: + */ + if (ctx->Scissor.Enabled) + { + GLint x = ctx->Scissor.X; + GLint y = ctx->Scissor.Y; + GLuint w = ctx->Scissor.Width; + GLuint h = ctx->Scissor.Height; + GLint dx = dstx - srcx; + GLint dy = dsty - srcy; + + if (!_mesa_clip_to_region(x, y, x+w-1, y+h-1, &dstx, &dsty, &width, &height)) + goto out; + + srcx = dstx - dx; + srcy = dsty - dy; + } + + /* Convert from GL to hardware coordinates: + */ + dsty = dPriv->h - dsty - height; + srcy = dPriv->h - srcy - height; + dstx += dPriv->x; + dsty += dPriv->y; + srcx += dPriv->x; + srcy += dPriv->y; + + /* Clip against the source region. This is the only source + * clipping we do. Dst is clipped with cliprects below. + */ + { + delta_x = srcx - dstx; + delta_y = srcy - dsty; + + if (!_mesa_clip_to_region(0, 0, src->pitch, src->height, + &srcx, &srcy, &width, &height)) + goto out; + + dstx = srcx - delta_x; + dsty = srcy - delta_y; + } + + dest_rect.x1 = dstx; + dest_rect.y1 = dsty; + dest_rect.x2 = dstx + width; + dest_rect.y2 = dsty + height; + + /* Could do slightly more clipping: Eg, take the intersection of + * the existing set of cliprects and those cliprects translated + * by delta_x, delta_y: + * + * This code will not overwrite other windows, but will + * introduce garbage when copying from obscured window regions. + */ + for (i = 0; i < nbox; i++) { + drm_clip_rect_t rect; + + if (!intel_intersect_cliprects(&rect, &dest_rect, &box[i])) + continue; + + + intelEmitCopyBlit(intel, dst->cpp, + src->pitch, src->buffer, 0, + dst->pitch, dst->buffer, 0, + rect.x1 + delta_x, rect.y1 + delta_y, /* srcx, srcy */ + rect.x1, rect.y1, /* dstx, dsty */ + rect.x2 - rect.x1, rect.y2 - rect.y1); + } + + out: + intel_batchbuffer_flush(intel->batch); + } + UNLOCK_HARDWARE(intel); + + DBG("%s: success\n", __FUNCTION__); + return GL_TRUE; +} + + +void +intelCopyPixels(GLcontext * ctx, + GLint srcx, GLint srcy, + GLsizei width, GLsizei height, + GLint destx, GLint desty, GLenum type) +{ + if (INTEL_DEBUG & DEBUG_PIXEL) + fprintf(stderr, "%s\n", __FUNCTION__); + + if (do_blit_copypixels(ctx, srcx, srcy, width, height, destx, desty, type)) + return; + + if (do_texture_copypixels(ctx, srcx, srcy, width, height, destx, desty, type)) + return; + + DBG("fallback to _swrast_CopyPixels\n"); + + _swrast_CopyPixels(ctx, srcx, srcy, width, height, destx, desty, type); +} -- cgit v1.2.3