/************************************************************************** * * Copyright 2007 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 "st_context.h" #include "st_format.h" #include "st_public.h" #include "st_texture.h" #include "st_cb_fbo.h" #include "main/enums.h" #include "main/teximage.h" #include "main/texstore.h" #undef Elements /* fix re-defined macro warning */ #include "pipe/p_state.h" #include "pipe/p_context.h" #include "pipe/p_defines.h" #include "pipe/p_inlines.h" #include "util/u_rect.h" #define DBG if(0) printf #if 0 static GLenum target_to_target(GLenum target) { switch (target) { case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: return GL_TEXTURE_CUBE_MAP_ARB; default: return target; } } #endif /** * Allocate a new pipe_texture object * width0, height0, depth0 are the dimensions of the level 0 image * (the highest resolution). last_level indicates how many mipmap levels * to allocate storage for. For non-mipmapped textures, this will be zero. */ struct pipe_texture * st_texture_create(struct st_context *st, enum pipe_texture_target target, enum pipe_format format, GLuint last_level, GLuint width0, GLuint height0, GLuint depth0, GLuint usage ) { struct pipe_texture pt, *newtex; struct pipe_screen *screen = st->pipe->screen; assert(target <= PIPE_TEXTURE_CUBE); DBG("%s target %s format %s last_level %d\n", __FUNCTION__, _mesa_lookup_enum_by_nr(target), _mesa_lookup_enum_by_nr(format), last_level); assert(format); assert(screen->is_format_supported(screen, format, target, PIPE_TEXTURE_USAGE_SAMPLER, 0)); memset(&pt, 0, sizeof(pt)); pt.target = target; pt.format = format; pt.last_level = last_level; pt.width[0] = width0; pt.height[0] = height0; pt.depth[0] = depth0; pt.compressed = pf_is_compressed(format); pf_get_block(format, &pt.block); pt.tex_usage = usage; newtex = screen->texture_create(screen, &pt); assert(!newtex || pipe_is_referenced(&newtex->reference)); return newtex; } /** * Check if a texture image can be pulled into a unified mipmap texture. */ GLboolean st_texture_match_image(const struct pipe_texture *pt, const struct gl_texture_image *image, GLuint face, GLuint level) { /* Images with borders are never pulled into mipmap textures. */ if (image->Border) return GL_FALSE; /* Check if this image's format matches the established texture's format. */ if (st_mesa_format_to_pipe_format(image->TexFormat->MesaFormat) != pt->format || image->IsCompressed != pt->compressed) return GL_FALSE; /* Test if this image's size matches what's expected in the * established texture. */ if (image->Width != pt->width[level] || image->Height != pt->height[level] || image->Depth != pt->depth[level]) return GL_FALSE; return GL_TRUE; } #if 000 /* Although we use the image_offset[] array to store relative offsets * to cube faces, Mesa doesn't know anything about this and expects * each cube face to be treated as a separate image. * * These functions present that view to mesa: */ const GLuint * st_texture_depth_offsets(struct pipe_texture *pt, GLuint level) { static const GLuint zero = 0; if (pt->target != PIPE_TEXTURE_3D || pt->level[level].nr_images == 1) return &zero; else return pt->level[level].image_offset; } /** * Return the offset to the given mipmap texture image within the * texture memory buffer, in bytes. */ GLuint st_texture_image_offset(const struct pipe_texture * pt, GLuint face, GLuint level) { if (pt->target == PIPE_TEXTURE_CUBE) return (pt->level[level].level_offset + pt->level[level].image_offset[face] * pt->cpp); else return pt->level[level].level_offset; } #endif /** * Map a teximage in a mipmap texture. * \param row_stride returns row stride in bytes * \param image_stride returns image stride in bytes (for 3D textures). * \return address of mapping */ GLubyte * st_texture_image_map(struct st_context *st, struct st_texture_image *stImage, GLuint zoffset, enum pipe_transfer_usage usage, GLuint x, GLuint y, GLuint w, GLuint h) { struct pipe_screen *screen = st->pipe->screen; struct pipe_texture *pt = stImage->pt; DBG("%s \n", __FUNCTION__); stImage->transfer = screen->get_tex_transfer(screen, pt, stImage->face, stImage->level, zoffset, usage, x, y, w, h); if (stImage->transfer) return screen->transfer_map(screen, stImage->transfer); else return NULL; } void st_texture_image_unmap(struct st_context *st, struct st_texture_image *stImage) { struct pipe_screen *screen = st->pipe->screen; DBG("%s\n", __FUNCTION__); screen->transfer_unmap(screen, stImage->transfer); screen->tex_transfer_destroy(stImage->transfer); } /** * Upload data to a rectangular sub-region. Lots of choices how to do this: * * - memcpy by span to current destination * - upload data as new buffer and blit * * Currently always memcpy. */ static void st_surface_data(struct pipe_context *pipe, struct pipe_transfer *dst, unsigned dstx, unsigned dsty, const void *src, unsigned src_stride, unsigned srcx, unsigned srcy, unsigned width, unsigned height) { struct pipe_screen *screen = pipe->screen; void *map = screen->transfer_map(screen, dst); pipe_copy_rect(map, &dst->block, dst->stride, dstx, dsty, width, height, src, src_stride, srcx, srcy); screen->transfer_unmap(screen, dst); } /* Upload data for a particular image. */ void st_texture_image_data(struct pipe_context *pipe, struct pipe_texture *dst, GLuint face, GLuint level, void *src, GLuint src_row_stride, GLuint src_image_stride) { struct pipe_screen *screen = pipe->screen; GLuint depth = dst->depth[level]; GLuint i; const GLubyte *srcUB = src; struct pipe_transfer *dst_transfer; DBG("%s\n", __FUNCTION__); for (i = 0; i < depth; i++) { dst_transfer = screen->get_tex_transfer(screen, dst, face, level, i, PIPE_TRANSFER_WRITE, 0, 0, dst->width[level], dst->height[level]); st_surface_data(pipe, dst_transfer, 0, 0, /* dstx, dsty */ srcUB, src_row_stride, 0, 0, /* source x, y */ dst->width[level], dst->height[level]); /* width, height */ screen->tex_transfer_destroy(dst_transfer); srcUB += src_image_stride; } } /* Copy mipmap image between textures */ void st_texture_image_copy(struct pipe_context *pipe, struct pipe_texture *dst, GLuint dstLevel, struct pipe_texture *src, GLuint face) { struct pipe_screen *screen = pipe->screen; GLuint width = dst->width[dstLevel]; GLuint height = dst->height[dstLevel]; GLuint depth = dst->depth[dstLevel]; struct pipe_surface *src_surface; struct pipe_surface *dst_surface; GLuint i; for (i = 0; i < depth; i++) { GLuint srcLevel; /* find src texture level of needed size */ for (srcLevel = 0; srcLevel <= src->last_level; srcLevel++) { if (src->width[srcLevel] == width && src->height[srcLevel] == height) { break; } } assert(src->width[srcLevel] == width); assert(src->height[srcLevel] == height); #if 0 { src_surface = screen->get_tex_surface(screen, src, face, srcLevel, i, PIPE_BUFFER_USAGE_CPU_READ); ubyte *map = screen->surface_map(screen, src_surface, PIPE_BUFFER_USAGE_CPU_READ); map += src_surface->width * src_surface->height * 4 / 2; printf("%s center pixel: %d %d %d %d (pt %p[%d] -> %p[%d])\n", __FUNCTION__, map[0], map[1], map[2], map[3], src, srcLevel, dst, dstLevel); screen->surface_unmap(screen, src_surface); pipe_surface_reference(&src_surface, NULL); } #endif dst_surface = screen->get_tex_surface(screen, dst, face, dstLevel, i, PIPE_BUFFER_USAGE_GPU_WRITE); src_surface = screen->get_tex_surface(screen, src, face, srcLevel, i, PIPE_BUFFER_USAGE_GPU_READ); pipe->surface_copy(pipe, dst_surface, 0, 0, /* destX, Y */ src_surface, 0, 0, /* srcX, Y */ width, height); pipe_surface_reference(&src_surface, NULL); pipe_surface_reference(&dst_surface, NULL); } } /** Bind a pipe surface for use as a texture image */ int st_set_teximage(struct pipe_texture *pt, int target) { GET_CURRENT_CONTEXT(ctx); const GLuint unit = ctx->Texture.CurrentUnit; struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; struct gl_texture_object *texObj; struct gl_texture_image *texImage; struct st_texture_image *stImage; int internalFormat; switch (pt->format) { case PIPE_FORMAT_A8R8G8B8_UNORM: internalFormat = GL_RGBA8; break; default: return 0; }; switch (target) { case ST_TEXTURE_2D: target = GL_TEXTURE_2D; break; case ST_TEXTURE_RECT: target = GL_TEXTURE_RECTANGLE_ARB; break; default: return 0; } texObj = _mesa_select_tex_object(ctx, texUnit, target); texImage = _mesa_get_tex_image(ctx, texObj, target, 0); stImage = st_texture_image(texImage); _mesa_init_teximage_fields(ctx, GL_TEXTURE_2D, texImage, pt->width[0], pt->height[0], 1, 0, internalFormat); texImage->TexFormat = st_ChooseTextureFormat(ctx, internalFormat, GL_RGBA, GL_UNSIGNED_BYTE); _mesa_set_fetch_functions(texImage, 2); pipe_texture_reference(&stImage->pt, pt); return 1; } /** Redirect rendering into stfb's surface to a texture image */ int st_bind_teximage(struct st_framebuffer *stfb, uint surfIndex, int target, int format, int level) { GET_CURRENT_CONTEXT(ctx); struct st_context *st = ctx->st; struct pipe_context *pipe = st->pipe; struct pipe_screen *screen = pipe->screen; const GLuint unit = ctx->Texture.CurrentUnit; struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; struct gl_texture_object *texObj; struct gl_texture_image *texImage; struct st_texture_image *stImage; struct st_renderbuffer *strb; GLint face = 0, slice = 0; assert(surfIndex <= ST_SURFACE_DEPTH); strb = st_renderbuffer(stfb->Base.Attachment[surfIndex].Renderbuffer); if (strb->texture_save || strb->surface_save) { /* Error! */ return 0; } if (target == ST_TEXTURE_2D) { texObj = texUnit->CurrentTex[TEXTURE_2D_INDEX]; texImage = _mesa_get_tex_image(ctx, texObj, GL_TEXTURE_2D, level); stImage = st_texture_image(texImage); } else { /* unsupported target */ return 0; } st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); /* save the renderbuffer's surface/texture info */ pipe_texture_reference(&strb->texture_save, strb->texture); pipe_surface_reference(&strb->surface_save, strb->surface); /* plug in new surface/texture info */ pipe_texture_reference(&strb->texture, stImage->pt); strb->surface = screen->get_tex_surface(screen, strb->texture, face, level, slice, (PIPE_BUFFER_USAGE_GPU_READ | PIPE_BUFFER_USAGE_GPU_WRITE)); st->dirty.st |= ST_NEW_FRAMEBUFFER; return 1; } /** Undo surface-to-texture binding */ int st_release_teximage(struct st_framebuffer *stfb, uint surfIndex, int target, int format, int level) { GET_CURRENT_CONTEXT(ctx); struct st_context *st = ctx->st; struct st_renderbuffer *strb; assert(surfIndex <= ST_SURFACE_DEPTH); strb = st_renderbuffer(stfb->Base.Attachment[surfIndex].Renderbuffer); if (!strb->texture_save || !strb->surface_save) { /* Error! */ return 0; } st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); /* free tex surface, restore original */ pipe_surface_reference(&strb->surface, strb->surface_save); pipe_texture_reference(&strb->texture, strb->texture_save); pipe_surface_reference(&strb->surface_save, NULL); pipe_texture_reference(&strb->texture_save, NULL); st->dirty.st |= ST_NEW_FRAMEBUFFER; return 1; }