/************************************************************************** * * 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 "main/mtypes.h" #include "main/enums.h" #include "main/image.h" #include "main/teximage.h" #include "main/texstate.h" #include "main/mipmap.h" #include "drivers/common/meta.h" #include "intel_screen.h" #include "intel_context.h" #include "intel_buffers.h" #include "intel_mipmap_tree.h" #include "intel_regions.h" #include "intel_fbo.h" #include "intel_tex.h" #include "intel_blit.h" #define FILE_DEBUG_FLAG DEBUG_TEXTURE /** * Get the intel_region which is the source for any glCopyTex[Sub]Image call. * * Do the best we can using the blitter. A future project is to use * the texture engine and fragment programs for these copies. */ static const struct intel_region * get_teximage_source(struct intel_context *intel, GLenum internalFormat) { struct intel_renderbuffer *irb; DBG("%s %s\n", __FUNCTION__, _mesa_lookup_enum_by_nr(internalFormat)); switch (internalFormat) { case GL_DEPTH_COMPONENT: case GL_DEPTH_COMPONENT16: irb = intel_get_renderbuffer(intel->ctx.ReadBuffer, BUFFER_DEPTH); if (irb && irb->region && irb->region->cpp == 2) return irb->region; return NULL; case GL_DEPTH24_STENCIL8_EXT: case GL_DEPTH_STENCIL_EXT: irb = intel_get_renderbuffer(intel->ctx.ReadBuffer, BUFFER_DEPTH); if (irb && irb->region && irb->region->cpp == 4) return irb->region; return NULL; case GL_RGBA: case GL_RGBA8: case GL_RGB: case GL_RGB8: return intel_readbuf_region(intel); default: return NULL; } } static GLboolean do_copy_texsubimage(struct intel_context *intel, GLenum target, struct intel_texture_image *intelImage, GLenum internalFormat, GLint dstx, GLint dsty, GLint x, GLint y, GLsizei width, GLsizei height) { GLcontext *ctx = &intel->ctx; const struct intel_region *src = get_teximage_source(intel, internalFormat); if (!intelImage->mt || !src) { if (INTEL_DEBUG & DEBUG_FALLBACKS) fprintf(stderr, "%s fail %p %p (0x%08x)\n", __FUNCTION__, intelImage->mt, src, internalFormat); return GL_FALSE; } if (intelImage->mt->cpp != src->cpp) { if (INTEL_DEBUG & DEBUG_FALLBACKS) fprintf(stderr, "%s fail %d vs %d cpp\n", __FUNCTION__, intelImage->mt->cpp, src->cpp); return GL_FALSE; } /* intelFlush(ctx); */ intel_prepare_render(intel); { drm_intel_bo *dst_bo = intel_region_buffer(intel, intelImage->mt->region, INTEL_WRITE_PART); GLuint image_x, image_y; GLshort src_pitch; /* get dest x/y in destination texture */ intel_miptree_get_image_offset(intelImage->mt, intelImage->level, intelImage->face, 0, &image_x, &image_y); /* Can't blit to tiled buffers with non-tile-aligned offset. */ if (intelImage->mt->region->tiling == I915_TILING_Y) { return GL_FALSE; } if (ctx->ReadBuffer->Name == 0) { /* reading from a window, adjust x, y */ const __DRIdrawable *dPriv = intel->driReadDrawable; y = dPriv->y + (dPriv->h - (y + height)); x += dPriv->x; /* Invert the data coming from the source rectangle due to GL * and hardware disagreeing on where y=0 is. * * It appears that our offsets and pitches get mangled * appropriately by the hardware, and we don't need to adjust them * on our own. */ src_pitch = -src->pitch; } else { /* reading from a FBO, y is already oriented the way we like */ src_pitch = src->pitch; } /* blit from src buffer to texture */ if (!intelEmitCopyBlit(intel, intelImage->mt->cpp, src_pitch, src->buffer, 0, src->tiling, intelImage->mt->pitch, dst_bo, 0, intelImage->mt->region->tiling, src->draw_x + x, src->draw_y + y, image_x + dstx, image_y + dsty, width, height, GL_COPY)) { return GL_FALSE; } } return GL_TRUE; } static void intelCopyTexImage1D(GLcontext * ctx, GLenum target, GLint level, GLenum internalFormat, GLint x, GLint y, GLsizei width, GLint border) { struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); struct gl_texture_object *texObj = _mesa_select_tex_object(ctx, texUnit, target); struct gl_texture_image *texImage = _mesa_select_tex_image(ctx, texObj, target, level); int srcx, srcy, dstx, dsty, height; if (border) goto fail; /* Setup or redefine the texture object, mipmap tree and texture * image. Don't populate yet. */ ctx->Driver.TexImage1D(ctx, target, level, internalFormat, width, border, GL_RGBA, CHAN_TYPE, NULL, &ctx->DefaultPacking, texObj, texImage); srcx = x; srcy = y; dstx = 0; dsty = 0; height = 1; if (!_mesa_clip_copytexsubimage(ctx, &dstx, &dsty, &srcx, &srcy, &width, &height)) return; if (!do_copy_texsubimage(intel_context(ctx), target, intel_texture_image(texImage), internalFormat, 0, 0, x, y, width, height)) goto fail; return; fail: if (INTEL_DEBUG & DEBUG_FALLBACKS) fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__); _mesa_meta_CopyTexImage1D(ctx, target, level, internalFormat, x, y, width, border); } static void intelCopyTexImage2D(GLcontext * ctx, GLenum target, GLint level, GLenum internalFormat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border) { struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); struct gl_texture_object *texObj = _mesa_select_tex_object(ctx, texUnit, target); struct gl_texture_image *texImage = _mesa_select_tex_image(ctx, texObj, target, level); int srcx, srcy, dstx, dsty; if (border) goto fail; /* Setup or redefine the texture object, mipmap tree and texture * image. Don't populate yet. */ ctx->Driver.TexImage2D(ctx, target, level, internalFormat, width, height, border, GL_RGBA, GL_UNSIGNED_BYTE, NULL, &ctx->DefaultPacking, texObj, texImage); srcx = x; srcy = y; dstx = 0; dsty = 0; if (!_mesa_clip_copytexsubimage(ctx, &dstx, &dsty, &srcx, &srcy, &width, &height)) return; if (!do_copy_texsubimage(intel_context(ctx), target, intel_texture_image(texImage), internalFormat, 0, 0, x, y, width, height)) goto fail; return; fail: if (INTEL_DEBUG & DEBUG_FALLBACKS) fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__); _mesa_meta_CopyTexImage2D(ctx, target, level, internalFormat, x, y, width, height, border); } static void intelCopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width) { struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); struct gl_texture_object *texObj = _mesa_select_tex_object(ctx, texUnit, target); struct gl_texture_image *texImage = _mesa_select_tex_image(ctx, texObj, target, level); GLenum internalFormat = texImage->InternalFormat; /* XXX need to check as in above function? */ /* Need to check texture is compatible with source format. */ if (!do_copy_texsubimage(intel_context(ctx), target, intel_texture_image(texImage), internalFormat, xoffset, 0, x, y, width, 1)) { if (INTEL_DEBUG & DEBUG_FALLBACKS) fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__); _mesa_meta_CopyTexSubImage1D(ctx, target, level, xoffset, x, y, width); } } static void intelCopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height) { struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); struct gl_texture_object *texObj = _mesa_select_tex_object(ctx, texUnit, target); struct gl_texture_image *texImage = _mesa_select_tex_image(ctx, texObj, target, level); GLenum internalFormat = texImage->InternalFormat; /* Need to check texture is compatible with source format. */ if (!do_copy_texsubimage(intel_context(ctx), target, intel_texture_image(texImage), internalFormat, xoffset, yoffset, x, y, width, height)) { if (INTEL_DEBUG & DEBUG_FALLBACKS) fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__); _mesa_meta_CopyTexSubImage2D(ctx, target, level, xoffset, yoffset, x, y, width, height); } } void intelInitTextureCopyImageFuncs(struct dd_function_table *functions) { functions->CopyTexImage1D = intelCopyTexImage1D; functions->CopyTexImage2D = intelCopyTexImage2D; functions->CopyTexSubImage1D = intelCopyTexSubImage1D; functions->CopyTexSubImage2D = intelCopyTexSubImage2D; }