/************************************************************************** * * 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 "drivers/common/meta.h" #include "intel_screen.h" #include "intel_context.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 struct intel_renderbuffer * get_teximage_readbuffer(struct intel_context *intel, GLenum internalFormat) { DBG("%s %s\n", __FUNCTION__, _mesa_lookup_enum_by_nr(internalFormat)); switch (internalFormat) { case GL_DEPTH_COMPONENT: case GL_DEPTH_COMPONENT16: case GL_DEPTH24_STENCIL8_EXT: case GL_DEPTH_STENCIL_EXT: return intel_get_renderbuffer(intel->ctx.ReadBuffer, BUFFER_DEPTH); default: return intel_renderbuffer(intel->ctx.ReadBuffer->_ColorReadBuffer); } } GLboolean intel_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) { struct gl_context *ctx = &intel->ctx; struct intel_renderbuffer *irb; bool copy_supported = false; bool copy_supported_with_alpha_override = false; intel_prepare_render(intel); irb = get_teximage_readbuffer(intel, internalFormat); if (!intelImage->mt || !irb || !irb->region) { if (unlikely(INTEL_DEBUG & DEBUG_FALLBACKS)) fprintf(stderr, "%s fail %p %p (0x%08x)\n", __FUNCTION__, intelImage->mt, irb, internalFormat); return GL_FALSE; } copy_supported = intelImage->base.TexFormat == irb->Base.Format; /* Converting ARGB8888 to XRGB8888 is trivial: ignore the alpha bits */ if (irb->Base.Format == MESA_FORMAT_ARGB8888 && intelImage->base.TexFormat == MESA_FORMAT_XRGB8888) { copy_supported = true; } /* Converting XRGB8888 to ARGB8888 requires setting the alpha bits to 1.0 */ if (irb->Base.Format == MESA_FORMAT_XRGB8888 && intelImage->base.TexFormat == MESA_FORMAT_ARGB8888) { copy_supported_with_alpha_override = true; } if (!copy_supported && !copy_supported_with_alpha_override) { if (unlikely(INTEL_DEBUG & DEBUG_FALLBACKS)) fprintf(stderr, "%s mismatched formats %s, %s\n", __FUNCTION__, _mesa_get_format_name(intelImage->base.TexFormat), _mesa_get_format_name(irb->Base.Format)); return GL_FALSE; } { 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); /* The blitter can't handle Y-tiled buffers. */ if (intelImage->mt->region->tiling == I915_TILING_Y) { return GL_FALSE; } if (ctx->ReadBuffer->Name == 0) { /* Flip vertical orientation for system framebuffers */ y = ctx->ReadBuffer->Height - (y + height); src_pitch = -irb->region->pitch; } else { /* reading from a FBO, y is already oriented the way we like */ src_pitch = irb->region->pitch; } /* blit from src buffer to texture */ if (!intelEmitCopyBlit(intel, intelImage->mt->cpp, src_pitch, irb->region->buffer, 0, irb->region->tiling, intelImage->mt->region->pitch, dst_bo, 0, intelImage->mt->region->tiling, irb->draw_x + x, irb->draw_y + y, image_x + dstx, image_y + dsty, width, height, GL_COPY)) { return GL_FALSE; } } if (copy_supported_with_alpha_override) intel_set_teximage_alpha_to_one(ctx, intelImage); return GL_TRUE; } static void intelCopyTexImage1D(struct gl_context * 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 (!intel_copy_texsubimage(intel_context(ctx), target, intel_texture_image(texImage), internalFormat, 0, 0, x, y, width, height)) goto fail; return; fail: fallback_debug("%s - fallback to swrast\n", __FUNCTION__); _mesa_meta_CopyTexImage1D(ctx, target, level, internalFormat, x, y, width, border); } static void intelCopyTexImage2D(struct gl_context * 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 (!intel_copy_texsubimage(intel_context(ctx), target, intel_texture_image(texImage), internalFormat, 0, 0, x, y, width, height)) goto fail; return; fail: fallback_debug("%s - fallback to swrast\n", __FUNCTION__); _mesa_meta_CopyTexImage2D(ctx, target, level, internalFormat, x, y, width, height, border); } static void intelCopyTexSubImage1D(struct gl_context * 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 (!intel_copy_texsubimage(intel_context(ctx), target, intel_texture_image(texImage), internalFormat, xoffset, 0, x, y, width, 1)) { fallback_debug("%s - fallback to swrast\n", __FUNCTION__); _mesa_meta_CopyTexSubImage1D(ctx, target, level, xoffset, x, y, width); } } static void intelCopyTexSubImage2D(struct gl_context * 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 (!intel_copy_texsubimage(intel_context(ctx), target, intel_texture_image(texImage), internalFormat, xoffset, yoffset, x, y, width, height)) { fallback_debug("%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; }