/************************************************************************** * * 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 <stdio.h> #include "st_context.h" #include "st_format.h" #include "st_texture.h" #include "st_cb_fbo.h" #include "main/enums.h" #include "pipe/p_state.h" #include "pipe/p_context.h" #include "pipe/p_defines.h" #include "util/u_inlines.h" #include "util/u_format.h" #include "util/u_rect.h" #include "util/u_math.h" #define DBG if(0) printf /** * Allocate a new pipe_resource 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_resource * 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 layers, GLuint bind ) { struct pipe_resource pt, *newtex; struct pipe_screen *screen = st->pipe->screen; assert(target < PIPE_MAX_TEXTURE_TYPES); assert(width0 > 0); assert(height0 > 0); assert(depth0 > 0); if (target == PIPE_TEXTURE_CUBE) assert(layers == 6); DBG("%s target %d format %s last_level %d\n", __FUNCTION__, (int) target, util_format_name(format), last_level); assert(format); assert(screen->is_format_supported(screen, format, target, 0, PIPE_BIND_SAMPLER_VIEW)); memset(&pt, 0, sizeof(pt)); pt.target = target; pt.format = format; pt.last_level = last_level; pt.width0 = width0; pt.height0 = height0; pt.depth0 = depth0; pt.array_size = (target == PIPE_TEXTURE_CUBE ? 6 : layers); pt.usage = PIPE_USAGE_DEFAULT; pt.bind = bind; pt.flags = 0; newtex = screen->resource_create(screen, &pt); assert(!newtex || pipe_is_referenced(&newtex->reference)); return newtex; } /** * In OpenGL the number of 1D array texture layers is the "height" and * the number of 2D array texture layers is the "depth". In Gallium the * number of layers in an array texture is a separate 'array_size' field. * This function converts dimensions from the former to the later. */ void st_gl_texture_dims_to_pipe_dims(GLenum texture, GLuint widthIn, GLuint heightIn, GLuint depthIn, GLuint *widthOut, GLuint *heightOut, GLuint *depthOut, GLuint *layersOut) { switch (texture) { case GL_TEXTURE_1D: assert(heightIn == 1); assert(depthIn == 1); *widthOut = widthIn; *heightOut = 1; *depthOut = 1; *layersOut = 1; break; case GL_TEXTURE_1D_ARRAY: assert(depthIn == 1); *widthOut = widthIn; *heightOut = 1; *depthOut = 1; *layersOut = heightIn; break; case GL_TEXTURE_2D: case GL_TEXTURE_RECTANGLE: assert(depthIn == 1); *widthOut = widthIn; *heightOut = heightIn; *depthOut = 1; *layersOut = 1; break; case GL_TEXTURE_CUBE_MAP: assert(depthIn == 1); *widthOut = widthIn; *heightOut = heightIn; *depthOut = 1; *layersOut = 6; break; case GL_TEXTURE_2D_ARRAY: *widthOut = widthIn; *heightOut = heightIn; *depthOut = 1; *layersOut = depthIn; break; default: assert(0 && "Unexpected texture in st_gl_texture_dims_to_pipe_dims()"); /* fall-through */ case GL_TEXTURE_3D: *widthOut = widthIn; *heightOut = heightIn; *depthOut = depthIn; *layersOut = 1; break; } } /** * Check if a texture image can be pulled into a unified mipmap texture. */ GLboolean st_texture_match_image(const struct pipe_resource *pt, const struct gl_texture_image *image) { GLuint ptWidth, ptHeight, ptDepth, ptLayers; /* 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) != pt->format) return GL_FALSE; st_gl_texture_dims_to_pipe_dims(image->TexObject->Target, image->Width, image->Height, image->Depth, &ptWidth, &ptHeight, &ptDepth, &ptLayers); /* Test if this image's size matches what's expected in the * established texture. */ if (ptWidth != u_minify(pt->width0, image->Level) || ptHeight != u_minify(pt->height0, image->Level) || ptDepth != u_minify(pt->depth0, image->Level) || ptLayers != pt->array_size) return GL_FALSE; return GL_TRUE; } /** * Map a texture image and return the address for a particular 2D face/slice/ * layer. The stImage indicates the cube face and mipmap level. The slice * of the 3D texture is passed in 'zoffset'. * \param usage one of the PIPE_TRANSFER_x values * \param x, y, w, h the region of interest of the 2D image. * \return address of mapping or NULL if any error */ 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_context *pipe = st->pipe; struct pipe_resource *pt = stImage->pt; DBG("%s \n", __FUNCTION__); stImage->transfer = pipe_get_transfer(st->pipe, pt, stImage->base.Level, stImage->base.Face + zoffset, usage, x, y, w, h); if (stImage->transfer) return pipe_transfer_map(pipe, stImage->transfer); else return NULL; } void st_texture_image_unmap(struct st_context *st, struct st_texture_image *stImage) { struct pipe_context *pipe = st->pipe; DBG("%s\n", __FUNCTION__); pipe_transfer_unmap(pipe, stImage->transfer); pipe->transfer_destroy(pipe, stImage->transfer); stImage->transfer = 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_transfer *dst, unsigned dstx, unsigned dsty, const void *src, unsigned src_stride, unsigned srcx, unsigned srcy, unsigned width, unsigned height) { void *map = pipe_transfer_map(pipe, dst); assert(dst->resource); util_copy_rect(map, dst->resource->format, dst->stride, dstx, dsty, width, height, src, src_stride, srcx, srcy); pipe_transfer_unmap(pipe, dst); } /* Upload data for a particular image. */ void st_texture_image_data(struct st_context *st, struct pipe_resource *dst, GLuint face, GLuint level, void *src, GLuint src_row_stride, GLuint src_image_stride) { struct pipe_context *pipe = st->pipe; GLuint i; const GLubyte *srcUB = src; struct pipe_transfer *dst_transfer; GLuint layers; if (dst->target == PIPE_TEXTURE_1D_ARRAY || dst->target == PIPE_TEXTURE_2D_ARRAY) layers = dst->array_size; else layers = u_minify(dst->depth0, level); DBG("%s\n", __FUNCTION__); for (i = 0; i < layers; i++) { dst_transfer = pipe_get_transfer(st->pipe, dst, level, face + i, PIPE_TRANSFER_WRITE, 0, 0, u_minify(dst->width0, level), u_minify(dst->height0, level)); st_surface_data(pipe, dst_transfer, 0, 0, /* dstx, dsty */ srcUB, src_row_stride, 0, 0, /* source x, y */ u_minify(dst->width0, level), u_minify(dst->height0, level)); /* width, height */ pipe->transfer_destroy(pipe, dst_transfer); srcUB += src_image_stride; } } /** * For debug only: get/print center pixel in the src resource. */ static void print_center_pixel(struct pipe_context *pipe, struct pipe_resource *src) { struct pipe_transfer *xfer; struct pipe_box region; ubyte *map; region.x = src->width0 / 2; region.y = src->height0 / 2; region.z = 0; region.width = 1; region.height = 1; region.depth = 1; xfer = pipe->get_transfer(pipe, src, 0, PIPE_TRANSFER_READ, ®ion); map = pipe->transfer_map(pipe, xfer); printf("center pixel: %d %d %d %d\n", map[0], map[1], map[2], map[3]); pipe->transfer_unmap(pipe, xfer); pipe->transfer_destroy(pipe, xfer); } /** * Copy the image at level=0 in 'src' to the 'dst' resource at 'dstLevel'. * This is used to copy mipmap images from one texture buffer to another. * This typically happens when our initial guess at the total texture size * is incorrect (see the guess_and_alloc_texture() function). */ void st_texture_image_copy(struct pipe_context *pipe, struct pipe_resource *dst, GLuint dstLevel, struct pipe_resource *src, GLuint srcLevel, GLuint face) { GLuint width = u_minify(dst->width0, dstLevel); GLuint height = u_minify(dst->height0, dstLevel); GLuint depth = u_minify(dst->depth0, dstLevel); struct pipe_box src_box; GLuint i; if (u_minify(src->width0, srcLevel) != width || u_minify(src->height0, srcLevel) != height || u_minify(src->depth0, srcLevel) != depth) { /* The source image size doesn't match the destination image size. * This can happen in some degenerate situations such as rendering to a * cube map face which was set up with mismatched texture sizes. */ return; } src_box.x = 0; src_box.y = 0; src_box.width = width; src_box.height = height; src_box.depth = 1; /* Loop over 3D image slices */ /* could (and probably should) use "true" 3d box here - but drivers can't quite handle it yet */ for (i = face; i < face + depth; i++) { src_box.z = i; if (0) { print_center_pixel(pipe, src); } pipe->resource_copy_region(pipe, dst, dstLevel, 0, 0, i,/* destX, Y, Z */ src, srcLevel, &src_box); } } struct pipe_resource * st_create_color_map_texture(struct gl_context *ctx) { struct st_context *st = st_context(ctx); struct pipe_context *pipe = st->pipe; struct pipe_resource *pt; enum pipe_format format; const uint texSize = 256; /* simple, and usually perfect */ /* find an RGBA texture format */ format = st_choose_format(pipe->screen, GL_RGBA, GL_NONE, GL_NONE, PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW); /* create texture for color map/table */ pt = st_texture_create(st, PIPE_TEXTURE_2D, format, 0, texSize, texSize, 1, 1, PIPE_BIND_SAMPLER_VIEW); return pt; }