| /************************************************************************** |
| * |
| * 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: |
| case GL_TEXTURE_EXTERNAL_OES: |
| 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 st_texture_object *stObj = |
| st_texture_object(stImage->base.TexObject); |
| struct pipe_context *pipe = st->pipe; |
| GLuint level; |
| |
| DBG("%s \n", __FUNCTION__); |
| |
| if (!stImage->pt) |
| return NULL; |
| |
| if (stObj->pt != stImage->pt) |
| level = 0; |
| else |
| level = stImage->base.Level; |
| |
| stImage->transfer = pipe_get_transfer(st->pipe, stImage->pt, 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; |
| } |
| |
