/************************************************************************** * * 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_texture.h" #include "main/enums.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 "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 compress_byte, 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 = compress_byte ? 1 : 0; pf_get_block(format, &pt.block); pt.tex_usage = usage; newtex = screen->texture_create(screen, &pt); assert(!newtex || newtex->refcount == 1); return newtex; } /** * Check if a texture image be pulled into a unified mipmap texture. * This mirrors the completeness test in a lot of ways. * * Not sure whether I want to pass gl_texture_image here. */ 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; if (st_mesa_format_to_pipe_format(image->TexFormat->MesaFormat) != pt->format || image->IsCompressed != pt->compressed) return GL_FALSE; /* Test image dimensions against the base level image adjusted for * minification. This will also catch images not present in the * texture, changed targets, etc. */ 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, GLuint flags ) { struct pipe_screen *screen = st->pipe->screen; struct pipe_texture *pt = stImage->pt; DBG("%s \n", __FUNCTION__); stImage->surface = screen->get_tex_surface(screen, pt, stImage->face, stImage->level, zoffset, flags); if (stImage->surface) return screen->surface_map(screen, stImage->surface, flags); 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->surface_unmap(screen, stImage->surface); pipe_surface_reference(&stImage->surface, NULL); } /** * 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_surface *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->surface_map(screen, dst, PIPE_BUFFER_USAGE_CPU_WRITE); pipe_copy_rect(map, &dst->block, dst->stride, dstx, dsty, width, height, src, src_stride, srcx, srcy); screen->surface_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_surface *dst_surface; DBG("%s\n", __FUNCTION__); for (i = 0; i < depth; i++) { dst_surface = screen->get_tex_surface(screen, dst, face, level, i, PIPE_BUFFER_USAGE_CPU_WRITE); st_surface_data(pipe, dst_surface, 0, 0, /* dstx, dsty */ srcUB, src_row_stride, 0, 0, /* source x, y */ dst->width[level], dst->height[level]); /* width, height */ screen->tex_surface_release(screen, &dst_surface); 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; /* XXX this is a hack */ const GLuint copyHeight = dst->compressed ? height / 4 : height; 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, FALSE, dst_surface, 0, 0, /* destX, Y */ src_surface, 0, 0, /* srcX, Y */ width, copyHeight); screen->tex_surface_release(screen, &src_surface); screen->tex_surface_release(screen, &dst_surface); } }