/************************************************************************** * * 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 "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_blit.h" #include "intel_regions.h" #include "intel_pixel.h" #include "bufmgr.h" static GLboolean do_texture_readpixels( GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, const struct gl_pixelstore_attrib *pack, struct intel_region *dest_region ) { #if 0 struct intel_context *intel = intel_context(ctx); intelScreenPrivate *screen = intel->intelScreen; GLint pitch = pack->RowLength ? pack->RowLength : width; __DRIdrawablePrivate *dPriv = intel->driDrawable; int textureFormat; GLenum glTextureFormat; int destFormat, depthFormat, destPitch; drm_clip_rect_t tmp; if (INTEL_DEBUG & DEBUG_PIXEL) fprintf(stderr, "%s\n", __FUNCTION__); if ( ctx->_ImageTransferState || pack->SwapBytes || pack->LsbFirst || !pack->Invert) { fprintf(stderr, "%s: check_color failed\n", __FUNCTION__); return GL_FALSE; } intel->vtbl.meta_texrect_source(intel, intel_readbuf_region(intel)); if (!intel->vtbl.meta_render_dest(intel, dest_region, type, format)) { fprintf(stderr, "%s: couldn't set dest %s/%s\n", __FUNCTION__, _mesa_lookup_enum_by_nr(type), _mesa_lookup_enum_by_nr(format)); return GL_FALSE; } LOCK_HARDWARE( intel ); intel->vtbl.install_meta_state(intel); intel->vtbl.meta_no_depth_stencil_write(intel); if (!driClipRectToFramebuffer(ctx->ReadBuffer, &x, &y, &width, &height)) { UNLOCK_HARDWARE( intel ); SET_STATE(i830, state); fprintf(stderr, "%s: cliprect failed\n", __FUNCTION__); return GL_TRUE; } y = dPriv->h - y - height; x += dPriv->x; y += dPriv->y; /* Set the frontbuffer up as a large rectangular texture. */ intel->vtbl.meta_tex_rect_source( intel, src_region, textureFormat ); intel->vtbl.meta_texture_blend_replace( i830, glTextureFormat ); /* Set the 3d engine to draw into the destination region: */ intel->vtbl.meta_draw_region(intel, dest_region); intel->vtbl.meta_draw_format(intel, destFormat, depthFormat ); /* ?? */ /* Draw a single quad, no cliprects: */ intel->vtbl.meta_disable_cliprects(intel); intel->vtbl.draw_quad(intel, 0, width, 0, height, 0x00ff00ff, x, x+width, y, y+height ); intel->vtbl.leave_meta_state(intel); UNLOCK_HARDWARE( intel ); intel_region_wait_fence( ctx, dest_region ); /* required by GL */ return GL_TRUE; #endif return GL_FALSE; } static GLboolean do_blit_readpixels( GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, const struct gl_pixelstore_attrib *pack, GLvoid *pixels ) { #if 0 struct intel_context *intel = intel_context(ctx); GLint pitch = pack->RowLength ? pack->RowLength : width; struct intel_region *src = intel_readbuf_region(intel); struct intel_client_region *dst = intel_client_pack_region(intel, pack, pixels); if (ctx->_ImageTransferState || pack->SwapBytes || pack->LsbFirst) { fprintf(stderr, "%s: failed 1\n", __FUNCTION__); return GL_FALSE; } /* Need GL_PACK_INVERT_MESA to cope with upsidedown results from * blitter: */ if (!pack->Invert) { fprintf(stderr, "%s: MESA_PACK_INVERT not set\n", __FUNCTION__); return GL_FALSE; } if (!intel_check_blit_format(src, format, type)) return GL_FALSE; /* Although the blits go on the command buffer, need to do this and * fire with lock held to guarentee cliprects are correct. */ intelFlush( &intel->ctx ); LOCK_HARDWARE( intel ); { __DRIdrawablePrivate *dPriv = intel->driDrawable; int nbox = dPriv->numClipRects; drm_clip_rect_t *box = dPriv->pClipRects; int i; y = dPriv->h - y - height; x += dPriv->x; y += dPriv->y; if (INTEL_DEBUG & DEBUG_PIXEL) fprintf(stderr, "readpixel blit src_pitch %d dst_pitch %d\n", src_pitch, pitch); for (i = 0 ; i < nbox ; i++) { GLint bx = box[i].x1; GLint by = box[i].y1; GLint bw = box[i].x2 - bx; GLint bh = box[i].y2 - by; if (bx < x) bw -= x - bx, bx = x; if (by < y) bh -= y - by, by = y; if (bx + bw > x + width) bw = x + width - bx; if (by + bh > y + height) bh = y + height - by; if (bw <= 0) continue; if (bh <= 0) continue; intelEmitCopyBlit( intel, src->cpp, src->pitch, src->buffer, 0, dst->pitch, dst->buffer, 0, bx, by, bx - x, by - y, bw, bh ); } intel_batchbuffer_flush(intel->batch); intel_client_region_release(intel, dst); } UNLOCK_HARDWARE( intel ); return GL_TRUE; #endif return GL_FALSE; } void intelReadPixels( GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, const struct gl_pixelstore_attrib *pack, GLvoid *pixels ) { if (INTEL_DEBUG & DEBUG_PIXEL) fprintf(stderr, "%s\n", __FUNCTION__); intelFlush( ctx ); if (do_blit_readpixels(ctx, x, y, width, height, format, type, pack, pixels)) return; if (do_texture_readpixels(ctx, x, y, width, height, format, type, pack, pixels)) return; _swrast_ReadPixels( ctx, x, y, width, height, format, type, pack, pixels); }