/************************************************************************** * * 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 portionsalloc * 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 "mtypes.h" #include "macros.h" #include "bufferobj.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_buffers.h" #include "intel_regions.h" #include "intel_pixel.h" #include "intel_buffer_objects.h" #include "intel_tris.h" static GLboolean do_texture_drawpixels(GLcontext * ctx, GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, const struct gl_pixelstore_attrib *unpack, const GLvoid * pixels) { struct intel_context *intel = intel_context(ctx); struct intel_region *dst = intel_drawbuf_region(intel); struct intel_buffer_object *src = intel_buffer_object(unpack->BufferObj); GLuint rowLength = unpack->RowLength ? unpack->RowLength : width; GLuint src_offset; if (INTEL_DEBUG & DEBUG_PIXEL) fprintf(stderr, "%s\n", __FUNCTION__); intelFlush(&intel->ctx); if (!dst) return GL_FALSE; intel->vtbl.render_start(intel); intel->vtbl.emit_state(intel); if (src) { if (!_mesa_validate_pbo_access(2, unpack, width, height, 1, format, type, pixels)) { _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawPixels"); return GL_TRUE; } } else { /* PBO only for now: */ if (INTEL_DEBUG & DEBUG_PIXEL) _mesa_printf("%s - not PBO\n", __FUNCTION__); return GL_FALSE; } /* There are a couple of things we can't do yet, one of which is * set the correct state for pixel operations when GL texturing is * enabled. That's a pretty rare state and probably not worth the * effort. A completely device-independent version of this may do * more. * * Similarly, we make no attempt to merge metaops processing with * an enabled fragment program, though it would certainly be * possible. */ if (!intel_check_meta_tex_fragment_ops(ctx)) { if (INTEL_DEBUG & DEBUG_PIXEL) _mesa_printf("%s - bad GL fragment state for metaops texture\n", __FUNCTION__); return GL_FALSE; } 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->depth_region); intel->vtbl.meta_import_pixel_state(intel); src_offset = (GLuint) _mesa_image_address(2, unpack, pixels, width, height, format, type, 0, 0, 0); /* Setup the pbo up as a rectangular texture, if possible. * * TODO: This is almost always possible if the i915 fragment * program is adjusted to correctly swizzle the sampled colors. * The major exception is any 24bit texture, like RGB888, for which * there is no hardware support. */ if (!intel->vtbl.meta_tex_rect_source(intel, src->buffer, src_offset, rowLength, height, format, 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; GLint srcx, srcy; GLint dstx, dsty; dstx = x; dsty = dPriv->h - (y + height); srcx = 0; /* skiprows/pixels already done */ srcy = 0; if (0) { const GLint orig_x = dstx; const GLint orig_y = dsty; if (!_mesa_clip_to_region(0, 0, dst->pitch, dst->height, &dstx, &dsty, &width, &height)) goto out; srcx += dstx - orig_x; srcy += dsty - orig_y; } if (INTEL_DEBUG & DEBUG_PIXEL) _mesa_printf("draw %d,%d %dx%d\n", dstx, dsty, width, height); /* Must use the regular cliprect mechanism in order to get the * drawing origin set correctly. Otherwise scissor state is in * incorrect coordinate space. Does this even need to hold the * lock??? */ intel->vtbl.meta_draw_quad(intel, dstx, dstx + width * ctx->Pixel.ZoomX, dPriv->h - (y + height * ctx->Pixel.ZoomY), dPriv->h - (y), -ctx->Current.RasterPos[2] * .5, 0x00ff00ff, srcx, srcx + width, srcy + height, srcy); out: intel->vtbl.leave_meta_state(intel); intel_batchbuffer_emit_mi_flush(intel->batch); } UNLOCK_HARDWARE(intel); return GL_TRUE; } /* Pros: * - no waiting for idle before updating framebuffer. * * Cons: * - if upload is by memcpy, this may actually be slower than fallback path. * - uploads the whole image even if destination is clipped * * Need to benchmark. * * Given the questions about performance, implement for pbo's only. * This path is definitely a win if the pbo is already in agp. If it * turns out otherwise, we can add the code necessary to upload client * data to agp space before performing the blit. (Though it may turn * out to be better/simpler just to use the texture engine). */ static GLboolean do_blit_drawpixels(GLcontext * ctx, GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, const struct gl_pixelstore_attrib *unpack, const GLvoid * pixels) { struct intel_context *intel = intel_context(ctx); struct intel_region *dest = intel_drawbuf_region(intel); struct intel_buffer_object *src = intel_buffer_object(unpack->BufferObj); GLuint src_offset; GLuint rowLength; if (INTEL_DEBUG & DEBUG_PIXEL) _mesa_printf("%s\n", __FUNCTION__); if (!dest) { if (INTEL_DEBUG & DEBUG_PIXEL) _mesa_printf("%s - no dest\n", __FUNCTION__); return GL_FALSE; } if (src) { /* This validation should be done by core mesa: */ if (!_mesa_validate_pbo_access(2, unpack, width, height, 1, format, type, pixels)) { _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawPixels"); return GL_TRUE; } } else { /* PBO only for now: */ if (INTEL_DEBUG & DEBUG_PIXEL) _mesa_printf("%s - not PBO\n", __FUNCTION__); return GL_FALSE; } if (!intel_check_blit_format(dest, format, type)) { if (INTEL_DEBUG & DEBUG_PIXEL) _mesa_printf("%s - bad format for blit\n", __FUNCTION__); return GL_FALSE; } if (!intel_check_blit_fragment_ops(ctx, GL_FALSE)) { if (INTEL_DEBUG & DEBUG_PIXEL) _mesa_printf("%s - bad GL fragment state for blitter\n", __FUNCTION__); return GL_FALSE; } if (ctx->Pixel.ZoomX != 1.0F) { if (INTEL_DEBUG & DEBUG_PIXEL) _mesa_printf("%s - bad PixelZoomX for blit\n", __FUNCTION__); return GL_FALSE; } if (unpack->RowLength > 0) rowLength = unpack->RowLength; else rowLength = width; if (ctx->Pixel.ZoomY == -1.0F) { if (INTEL_DEBUG & DEBUG_PIXEL) _mesa_printf("%s - bad PixelZoomY for blit\n", __FUNCTION__); return GL_FALSE; /* later */ y -= height; } else if (ctx->Pixel.ZoomY == 1.0F) { rowLength = -rowLength; } else { if (INTEL_DEBUG & DEBUG_PIXEL) _mesa_printf("%s - bad PixelZoomY for blit\n", __FUNCTION__); return GL_FALSE; } src_offset = (GLuint) _mesa_image_address(2, unpack, pixels, width, height, format, type, 0, 0, 0); intelFlush(&intel->ctx); LOCK_HARDWARE(intel); if (intel->driDrawable->numClipRects) { __DRIdrawablePrivate *dPriv = intel->driDrawable; int nbox = dPriv->numClipRects; drm_clip_rect_t *box = dPriv->pClipRects; drm_clip_rect_t rect; drm_clip_rect_t dest_rect; dri_bo *src_buffer = intel_bufferobj_buffer(intel, src, INTEL_READ); int i; dest_rect.x1 = dPriv->x + x; dest_rect.y1 = dPriv->y + dPriv->h - (y + height); dest_rect.x2 = dest_rect.x1 + width; dest_rect.y2 = dest_rect.y1 + height; for (i = 0; i < nbox; i++) { if (!intel_intersect_cliprects(&rect, &dest_rect, &box[i])) continue; intelEmitCopyBlit(intel, dest->cpp, rowLength, src_buffer, src_offset, GL_FALSE, dest->pitch, dest->buffer, 0, dest->tiling, rect.x1 - dest_rect.x1, rect.y2 - dest_rect.y2, rect.x1, rect.y1, rect.x2 - rect.x1, rect.y2 - rect.y1, ctx->Color.ColorLogicOpEnabled ? ctx->Color.LogicOp : GL_COPY); } } UNLOCK_HARDWARE(intel); if (INTEL_DEBUG & DEBUG_PIXEL) _mesa_printf("%s - DONE\n", __FUNCTION__); return GL_TRUE; } void intelDrawPixels(GLcontext * ctx, GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, const struct gl_pixelstore_attrib *unpack, const GLvoid * pixels) { if (do_blit_drawpixels(ctx, x, y, width, height, format, type, unpack, pixels)) return; if (do_texture_drawpixels(ctx, x, y, width, height, format, type, unpack, pixels)) return; if (INTEL_DEBUG & DEBUG_PIXEL) _mesa_printf("%s: fallback to swrast\n", __FUNCTION__); if (ctx->FragmentProgram._Current == ctx->FragmentProgram._TexEnvProgram) { /* * We don't want the i915 texenv program to be applied to DrawPixels. * This is really just a performance optimization (mesa will other- * wise happily run the fragment program on each pixel in the image). */ struct gl_fragment_program *fpSave = ctx->FragmentProgram._Current; /* can't just set current frag prog to 0 here as on buffer resize we'll get new state checks which will segfault. Remains a hack. */ ctx->FragmentProgram._Current = NULL; ctx->FragmentProgram._UseTexEnvProgram = GL_FALSE; ctx->FragmentProgram._Active = GL_FALSE; _swrast_DrawPixels( ctx, x, y, width, height, format, type, unpack, pixels ); ctx->FragmentProgram._Current = fpSave; ctx->FragmentProgram._UseTexEnvProgram = GL_TRUE; ctx->FragmentProgram._Active = GL_TRUE; _swrast_InvalidateState(ctx, _NEW_PROGRAM); } else { _swrast_DrawPixels( ctx, x, y, width, height, format, type, unpack, pixels ); } }