meta: Delete the PBO texsubimage path for real

Acked-by: Kenneth Graunke <[email protected]>

1 files changed, 0 insertions, 495 deletions

diff --git a/src/mesa/drivers/common/meta_tex_subimage.c b/src/mesa/drivers/common/meta_tex_subimage.c
deleted file mode 100644
index e0284a3f07d..00000000000
--- a/src/mesa/drivers/common/meta_tex_subimage.c
+++ /dev/null
@@ -1,495 +0,0 @@
-/*
- * Mesa 3-D graphics library
- *
- * Copyright (C) 2015 Intel Corporation.  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, sublicense,
- * 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS 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.
- *
- * Authors:
- *    Jason Ekstrand <[email protected]>
- */
-
-#include "blend.h"
-#include "bufferobj.h"
-#include "buffers.h"
-#include "clear.h"
-#include "fbobject.h"
-#include "framebuffer.h"
-#include "glformats.h"
-#include "glheader.h"
-#include "image.h"
-#include "macros.h"
-#include "meta.h"
-#include "pbo.h"
-#include "readpix.h"
-#include "shaderapi.h"
-#include "state.h"
-#include "teximage.h"
-#include "texobj.h"
-#include "texstate.h"
-#include "uniforms.h"
-#include "varray.h"
-
-static bool
-need_signed_unsigned_int_conversion(mesa_format mesaFormat,
-                                    GLenum format, GLenum type)
-{
-   const GLenum mesaFormatType = _mesa_get_format_datatype(mesaFormat);
-   const bool is_format_integer = _mesa_is_enum_format_integer(format);
-   return (mesaFormatType == GL_INT &&
-           is_format_integer &&
-           (type == GL_UNSIGNED_INT ||
-            type == GL_UNSIGNED_SHORT ||
-            type == GL_UNSIGNED_BYTE)) ||
-          (mesaFormatType == GL_UNSIGNED_INT &&
-           is_format_integer &&
-           (type == GL_INT ||
-            type == GL_SHORT ||
-            type == GL_BYTE));
-}
-
-static struct gl_texture_image *
-create_texture_for_pbo(struct gl_context *ctx,
-                       bool create_pbo, GLenum pbo_target,
-                       int dims, int width, int height, int depth,
-                       GLenum format, GLenum type, const void *pixels,
-                       const struct gl_pixelstore_attrib *packing,
-                       struct gl_buffer_object **tmp_pbo, GLuint *tmp_tex)
-{
-   const mesa_format pbo_format =
-      _mesa_tex_format_from_format_and_type(ctx, format, type);
-   GLenum internal_format;
-   unsigned row_stride;
-   struct gl_buffer_object *buffer_obj;
-   struct gl_texture_object *tex_obj;
-   struct gl_texture_image *tex_image;
-   bool read_only;
-
-   if (packing->SwapBytes ||
-       packing->LsbFirst ||
-       packing->Invert)
-      return NULL;
-
-   if (pbo_format == MESA_FORMAT_NONE)
-      return NULL;
-
-   /* Account for SKIP_PIXELS, SKIP_ROWS, ALIGNMENT, and SKIP_IMAGES */
-   uint32_t first_pixel = _mesa_image_offset(dims, packing, width, height,
-                                             format, type,
-                                             0, 0, 0);
-   uint32_t last_pixel =  _mesa_image_offset(dims, packing, width, height,
-                                             format, type,
-                                             depth-1, height-1, width);
-   row_stride = _mesa_image_row_stride(packing, width, format, type);
-
-   if (_mesa_is_bufferobj(packing->BufferObj)) {
-      *tmp_pbo = NULL;
-      buffer_obj = packing->BufferObj;
-      first_pixel += (intptr_t)pixels;
-   } else {
-      bool is_pixel_pack = pbo_target == GL_PIXEL_PACK_BUFFER;
-
-      assert(create_pbo);
-
-      *tmp_pbo = ctx->Driver.NewBufferObject(ctx, 0xDEADBEEF);
-      if (*tmp_pbo == NULL)
-         return NULL;
-
-      /* In case of GL_PIXEL_PACK_BUFFER, pass null pointer for the pixel
-       * data to avoid unnecessary data copying in _mesa_buffer_data.
-       */
-      if (is_pixel_pack)
-         _mesa_buffer_data(ctx, *tmp_pbo, GL_NONE,
-                           last_pixel - first_pixel,
-                           NULL,
-                           GL_STREAM_READ,
-                           __func__);
-      else
-         _mesa_buffer_data(ctx, *tmp_pbo, GL_NONE,
-                           last_pixel - first_pixel,
-                           (char *)pixels + first_pixel,
-                           GL_STREAM_DRAW,
-                           __func__);
-
-      buffer_obj = *tmp_pbo;
-      first_pixel = 0;
-   }
-
-   _mesa_GenTextures(1, tmp_tex);
-   tex_obj = _mesa_lookup_texture(ctx, *tmp_tex);
-   _mesa_initialize_texture_object(ctx, tex_obj, *tmp_tex, GL_TEXTURE_2D);
-   /* This must be set after _mesa_initialize_texture_object, not before. */
-   tex_obj->Immutable = GL_TRUE;
-   tex_obj->ImmutableLevels = 1;
-   /* This is required for interactions with ARB_texture_view. */
-   tex_obj->NumLayers = 1;
-
-   internal_format = _mesa_get_format_base_format(pbo_format);
-
-   /* The texture is addressed as a single very-tall image, so we
-    * need to pack the multiple image depths together taking the
-    * inter-image padding into account.
-    */
-   int image_height = packing->ImageHeight == 0 ? height : packing->ImageHeight;
-   int full_height = image_height * (depth - 1) + height;
-
-   tex_image = _mesa_get_tex_image(ctx, tex_obj, tex_obj->Target, 0);
-   _mesa_init_teximage_fields(ctx, tex_image, width, full_height, 1,
-                              0, internal_format, pbo_format);
-
-   read_only = pbo_target == GL_PIXEL_UNPACK_BUFFER;
-   if (!ctx->Driver.SetTextureStorageForBufferObject(ctx, tex_obj,
-                                                     buffer_obj,
-                                                     first_pixel,
-                                                     row_stride,
-                                                     read_only)) {
-      _mesa_DeleteTextures(1, tmp_tex);
-      _mesa_reference_buffer_object(ctx, tmp_pbo, NULL);
-      return NULL;
-   }
-
-   return tex_image;
-}
-
-bool
-_mesa_meta_pbo_TexSubImage(struct gl_context *ctx, GLuint dims,
-                           struct gl_texture_image *tex_image,
-                           int xoffset, int yoffset, int zoffset,
-                           int width, int height, int depth,
-                           GLenum format, GLenum type, const void *pixels,
-                           bool create_pbo,
-                           const struct gl_pixelstore_attrib *packing)
-{
-   struct gl_buffer_object *pbo = NULL;
-   GLuint pbo_tex = 0;
-   struct gl_framebuffer *readFb = NULL;
-   struct gl_framebuffer *drawFb = NULL;
-   int image_height;
-   struct gl_texture_image *pbo_tex_image;
-   GLenum status;
-   bool success = false;
-   int z;
-
-   if (!_mesa_is_bufferobj(packing->BufferObj) &&
-       (!create_pbo || pixels == NULL))
-      return false;
-
-   if (format == GL_DEPTH_COMPONENT ||
-       format == GL_DEPTH_STENCIL ||
-       format == GL_STENCIL_INDEX ||
-       format == GL_COLOR_INDEX)
-      return false;
-
-   if (ctx->_ImageTransferState)
-      return false;
-
-   /* This function rely on BlitFramebuffer to fill in the pixel data for
-    * glTex[Sub]Image*D. But, BlitFrameBuffer doesn't support signed to
-    * unsigned or unsigned to signed integer conversions.
-    */
-   if (need_signed_unsigned_int_conversion(tex_image->TexFormat, format, type))
-      return false;
-
-   /* For arrays, use a tall (height * depth) 2D texture but taking into
-    * account the inter-image padding specified with the image height packing
-    * property.
-    */
-   image_height = packing->ImageHeight == 0 ? height : packing->ImageHeight;
-
-   _mesa_meta_begin(ctx, ~(MESA_META_PIXEL_TRANSFER |
-                           MESA_META_PIXEL_STORE));
-
-   pbo_tex_image = create_texture_for_pbo(ctx, create_pbo,
-                                          GL_PIXEL_UNPACK_BUFFER,
-                                          dims, width, height, depth,
-                                          format, type, pixels, packing,
-                                          &pbo, &pbo_tex);
-   if (!pbo_tex_image) {
-      _mesa_meta_end(ctx);
-      return false;
-   }
-
-   readFb = ctx->Driver.NewFramebuffer(ctx, 0xDEADBEEF);
-   if (readFb == NULL)
-      goto fail;
-
-   drawFb = ctx->Driver.NewFramebuffer(ctx, 0xDEADBEEF);
-   if (drawFb == NULL)
-      goto fail;
-
-   _mesa_bind_framebuffers(ctx, drawFb, readFb);
-
-   if (tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY) {
-      assert(depth == 1);
-      assert(zoffset == 0);
-      depth = height;
-      height = 1;
-      image_height = 1;
-      zoffset = yoffset;
-      yoffset = 0;
-   }
-
-   _mesa_meta_framebuffer_texture_image(ctx, ctx->ReadBuffer,
-                                        GL_COLOR_ATTACHMENT0,
-                                        pbo_tex_image, 0);
-   /* If this passes on the first layer it should pass on the others */
-   status = _mesa_check_framebuffer_status(ctx, ctx->ReadBuffer);
-   if (status != GL_FRAMEBUFFER_COMPLETE)
-      goto fail;
-
-   _mesa_meta_framebuffer_texture_image(ctx, ctx->DrawBuffer,
-                                        GL_COLOR_ATTACHMENT0,
-                                        tex_image, zoffset);
-   /* If this passes on the first layer it should pass on the others */
-   status = _mesa_check_framebuffer_status(ctx, ctx->DrawBuffer);
-   if (status != GL_FRAMEBUFFER_COMPLETE)
-      goto fail;
-
-   /* Explicitly disable sRGB encoding */
-   ctx->DrawBuffer->Visual.sRGBCapable = false;
-
-   _mesa_update_state(ctx);
-
-   if (_mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
-                                  0, 0, width, height,
-                                  xoffset, yoffset,
-                                  xoffset + width, yoffset + height,
-                                  GL_COLOR_BUFFER_BIT, GL_NEAREST))
-      goto fail;
-
-   for (z = 1; z < depth; z++) {
-      _mesa_meta_framebuffer_texture_image(ctx, ctx->DrawBuffer,
-                                           GL_COLOR_ATTACHMENT0,
-                                           tex_image, zoffset + z);
-
-      _mesa_update_state(ctx);
-
-      _mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
-                                 0, z * image_height,
-                                 width, z * image_height + height,
-                                 xoffset, yoffset,
-                                 xoffset + width, yoffset + height,
-                                 GL_COLOR_BUFFER_BIT, GL_NEAREST);
-   }
-
-   success = true;
-
-fail:
-   _mesa_reference_framebuffer(&readFb, NULL);
-   _mesa_reference_framebuffer(&drawFb, NULL);
-   _mesa_DeleteTextures(1, &pbo_tex);
-   _mesa_reference_buffer_object(ctx, &pbo, NULL);
-
-   _mesa_meta_end(ctx);
-
-   return success;
-}
-
-bool
-_mesa_meta_pbo_GetTexSubImage(struct gl_context *ctx, GLuint dims,
-                              struct gl_texture_image *tex_image,
-                              int xoffset, int yoffset, int zoffset,
-                              int width, int height, int depth,
-                              GLenum format, GLenum type, const void *pixels,
-                              const struct gl_pixelstore_attrib *packing)
-{
-   struct gl_buffer_object *pbo = NULL;
-   GLuint pbo_tex = 0;
-   struct gl_framebuffer *readFb;
-   struct gl_framebuffer *drawFb;
-   int image_height;
-   struct gl_texture_image *pbo_tex_image;
-   struct gl_renderbuffer *rb = NULL;
-   GLenum dstBaseFormat = _mesa_unpack_format_to_base_format(format);
-   GLenum status, src_base_format;
-   bool success = false, clear_channels_to_zero = false;
-   float save_clear_color[4];
-   int z;
-
-   if (!_mesa_is_bufferobj(packing->BufferObj))
-      return false;
-
-   if (format == GL_DEPTH_COMPONENT ||
-       format == GL_DEPTH_STENCIL ||
-       format == GL_STENCIL_INDEX ||
-       format == GL_COLOR_INDEX)
-      return false;
-
-   /* Don't use meta path for readpixels in below conditions. */
-   if (!tex_image) {
-      rb = ctx->ReadBuffer->_ColorReadBuffer;
-
-      /* _mesa_get_readpixels_transfer_ops() includes the cases of read
-       * color clamping along with the ctx->_ImageTransferState.
-       */
-      if (_mesa_get_readpixels_transfer_ops(ctx, rb->Format, format,
-                                            type, GL_FALSE))
-         return false;
-
-      if (_mesa_need_rgb_to_luminance_conversion(rb->_BaseFormat,
-                                                 dstBaseFormat))
-         return false;
-
-      /* This function rely on BlitFramebuffer to fill in the pixel data for
-       * ReadPixels. But, BlitFrameBuffer doesn't support signed to unsigned
-       * or unsigned to signed integer conversions. OpenGL spec expects an
-       * invalid operation in that case.
-       */
-      if (need_signed_unsigned_int_conversion(rb->Format, format, type))
-         return false;
-   } else {
-      if (need_signed_unsigned_int_conversion(tex_image->TexFormat, format, type))
-         return false;
-   }
-
-   /* For arrays, use a tall (height * depth) 2D texture but taking into
-    * account the inter-image padding specified with the image height packing
-    * property.
-    */
-   image_height = packing->ImageHeight == 0 ? height : packing->ImageHeight;
-
-   _mesa_meta_begin(ctx, ~(MESA_META_PIXEL_TRANSFER |
-                           MESA_META_PIXEL_STORE));
-
-   pbo_tex_image = create_texture_for_pbo(ctx, false, GL_PIXEL_PACK_BUFFER,
-                                          dims, width, height, depth,
-                                          format, type, pixels, packing,
-                                          &pbo, &pbo_tex);
-
-   if (!pbo_tex_image) {
-      _mesa_meta_end(ctx);
-      return false;
-   }
-
-   /* GL_CLAMP_FRAGMENT_COLOR doesn't affect ReadPixels and GettexImage */
-   if (ctx->Extensions.ARB_color_buffer_float)
-      _mesa_ClampColor(GL_CLAMP_FRAGMENT_COLOR, GL_FALSE);
-
-   readFb = ctx->Driver.NewFramebuffer(ctx, 0xDEADBEEF);
-   if (readFb == NULL)
-      goto fail;
-
-   drawFb = ctx->Driver.NewFramebuffer(ctx, 0xDEADBEEF);
-   if (drawFb == NULL)
-      goto fail;
-
-   if (tex_image && tex_image->TexObject->Target == GL_TEXTURE_1D_ARRAY) {
-      assert(depth == 1);
-      assert(zoffset == 0);
-      depth = height;
-      height = 1;
-      image_height = 1;
-      zoffset = yoffset;
-      yoffset = 0;
-   }
-
-   /* If we were given a texture, bind it to the read framebuffer.  If not,
-    * we're doing a ReadPixels and we should just use whatever framebuffer
-    * the client has bound.
-    */
-   _mesa_bind_framebuffers(ctx, drawFb, tex_image ? readFb : ctx->ReadBuffer);
-   if (tex_image) {
-      _mesa_meta_framebuffer_texture_image(ctx, ctx->ReadBuffer,
-                                           GL_COLOR_ATTACHMENT0,
-                                           tex_image, zoffset);
-      /* If this passes on the first layer it should pass on the others */
-      status = _mesa_check_framebuffer_status(ctx, ctx->ReadBuffer);
-      if (status != GL_FRAMEBUFFER_COMPLETE)
-         goto fail;
-   } else {
-      assert(depth == 1);
-   }
-
-   _mesa_meta_framebuffer_texture_image(ctx, ctx->DrawBuffer,
-                                        GL_COLOR_ATTACHMENT0,
-                                        pbo_tex_image, 0);
-   /* If this passes on the first layer it should pass on the others */
-   status = _mesa_check_framebuffer_status(ctx, ctx->DrawBuffer);
-   if (status != GL_FRAMEBUFFER_COMPLETE)
-      goto fail;
-
-   /* Explicitly disable sRGB encoding */
-   ctx->DrawBuffer->Visual.sRGBCapable = false;
-
-   _mesa_update_state(ctx);
-
-   if (_mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
-                                  xoffset, yoffset,
-                                  xoffset + width, yoffset + height,
-                                  0, 0, width, height,
-                                  GL_COLOR_BUFFER_BIT, GL_NEAREST))
-      goto fail;
-
-   src_base_format = tex_image ?
-                     tex_image->_BaseFormat :
-                     ctx->ReadBuffer->_ColorReadBuffer->_BaseFormat;
-
-   /* Depending on the base formats involved we might need to rebase some
-    * values. For example if we download from a Luminance format to RGBA
-    * format, we want G=0 and B=0.
-    */
-   clear_channels_to_zero =
-      _mesa_need_luminance_to_rgb_conversion(src_base_format,
-                                             pbo_tex_image->_BaseFormat);
-
-   if (clear_channels_to_zero) {
-      memcpy(save_clear_color, ctx->Color.ClearColor.f, 4 * sizeof(float));
-      /* Clear the Green, Blue channels. */
-      _mesa_ColorMask(GL_FALSE, GL_TRUE, GL_TRUE,
-                      src_base_format != GL_LUMINANCE_ALPHA);
-      _mesa_ClearColor(0.0, 0.0, 0.0, 1.0);
-      _mesa_Clear(GL_COLOR_BUFFER_BIT);
-   }
-
-   for (z = 1; z < depth; z++) {
-      _mesa_meta_framebuffer_texture_image(ctx, ctx->ReadBuffer,
-                                           GL_COLOR_ATTACHMENT0,
-                                           tex_image, zoffset + z);
-
-      _mesa_update_state(ctx);
-
-      _mesa_meta_BlitFramebuffer(ctx, ctx->ReadBuffer, ctx->DrawBuffer,
-                                 xoffset, yoffset,
-                                 xoffset + width, yoffset + height,
-                                 0, z * image_height,
-                                 width, z * image_height + height,
-                                 GL_COLOR_BUFFER_BIT, GL_NEAREST);
-      if (clear_channels_to_zero)
-         _mesa_Clear(GL_COLOR_BUFFER_BIT);
-   }
-
-   /* Unmask the color channels and restore the saved clear color values. */
-   if (clear_channels_to_zero) {
-      _mesa_ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
-      _mesa_ClearColor(save_clear_color[0], save_clear_color[1],
-                       save_clear_color[2], save_clear_color[3]);
-   }
-
-   success = true;
-
-fail:
-   _mesa_reference_framebuffer(&drawFb, NULL);
-   _mesa_reference_framebuffer(&readFb, NULL);
-   _mesa_DeleteTextures(1, &pbo_tex);
-   _mesa_reference_buffer_object(ctx, &pbo, NULL);
-
-   _mesa_meta_end(ctx);
-
-   return success;
-}