[Mesa-dev] [PATCH 03/13] mesa: replace Driver.GetTexImage with GetTexSubImage()

Brian Paul brianp at vmware.com
Tue Jul 14 11:47:53 PDT 2015


Yes.  Missed that.

I'll post an updated series later.  Thanks for reviewing.

-Brian

On 07/14/2015 10:33 AM, Ilia Mirkin wrote:
> Don't you also have to update
> src/mesa/drivers/dri/i965/intel_tex_image.c:intel_get_tex_image ?
>
> On Mon, Jul 13, 2015 at 9:21 PM, Brian Paul <brianp at vmware.com> wrote:
>> The new driver hook has x/y/zoffset and width/height/depth parameters
>> for the new glGetTextureSubImage() function.
>>
>> The meta code and gallium state tracker are updated to handle the
>> new parameters.
>>
>> Callers to Driver.GetTexSubImage() pass in offsets=0 and sizes equal
>> to the whole texture size.
>> ---
>>   src/mesa/drivers/common/driverfuncs.c  |  2 +-
>>   src/mesa/drivers/common/meta.c         | 22 ++++++++++++----------
>>   src/mesa/drivers/common/meta.h         |  8 +++++---
>>   src/mesa/main/dd.h                     | 10 ++++++----
>>   src/mesa/main/debug.c                  |  4 +++-
>>   src/mesa/main/mipmap.c                 |  9 ++++++---
>>   src/mesa/main/texgetimage.c            | 15 ++++++++++-----
>>   src/mesa/main/texgetimage.h            |  9 +++++----
>>   src/mesa/state_tracker/st_cb_texture.c | 33 ++++++++++++++++++++-------------
>>   9 files changed, 68 insertions(+), 44 deletions(-)
>>
>> diff --git a/src/mesa/drivers/common/driverfuncs.c b/src/mesa/drivers/common/driverfuncs.c
>> index 71c1a76..ce99620 100644
>> --- a/src/mesa/drivers/common/driverfuncs.c
>> +++ b/src/mesa/drivers/common/driverfuncs.c
>> @@ -94,7 +94,7 @@ _mesa_init_driver_functions(struct dd_function_table *driver)
>>      driver->QuerySamplesForFormat = _mesa_query_samples_for_format;
>>      driver->TexImage = _mesa_store_teximage;
>>      driver->TexSubImage = _mesa_store_texsubimage;
>> -   driver->GetTexImage = _mesa_meta_GetTexImage;
>> +   driver->GetTexSubImage = _mesa_meta_GetTexSubImage;
>>      driver->ClearTexSubImage = _mesa_meta_ClearTexSubImage;
>>      driver->CopyTexSubImage = _mesa_meta_CopyTexSubImage;
>>      driver->GenerateMipmap = _mesa_meta_GenerateMipmap;
>> diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c
>> index 34a8e4b..12045eb 100644
>> --- a/src/mesa/drivers/common/meta.c
>> +++ b/src/mesa/drivers/common/meta.c
>> @@ -3196,15 +3196,17 @@ decompress_texture_image(struct gl_context *ctx,
>>    * from core Mesa.
>>    */
>>   void
>> -_mesa_meta_GetTexImage(struct gl_context *ctx,
>> -                       GLenum format, GLenum type, GLvoid *pixels,
>> -                       struct gl_texture_image *texImage)
>> +_mesa_meta_GetTexSubImage(struct gl_context *ctx,
>> +                          GLint xoffset, GLint yoffset, GLint zoffset,
>> +                          GLsizei width, GLsizei height, GLsizei depth,
>> +                          GLenum format, GLenum type, GLvoid *pixels,
>> +                          struct gl_texture_image *texImage)
>>   {
>>      if (_mesa_is_format_compressed(texImage->TexFormat)) {
>>         GLuint slice;
>>         bool result = true;
>>
>> -      for (slice = 0; slice < texImage->Depth; slice++) {
>> +      for (slice = 0; slice < depth; slice++) {
>>            void *dst;
>>            if (texImage->TexObject->Target == GL_TEXTURE_2D_ARRAY
>>                || texImage->TexObject->Target == GL_TEXTURE_CUBE_MAP_ARRAY) {
>> @@ -3216,15 +3218,14 @@ _mesa_meta_GetTexImage(struct gl_context *ctx,
>>               struct gl_pixelstore_attrib packing = ctx->Pack;
>>               packing.SkipPixels = 0;
>>               packing.SkipRows = 0;
>> -            dst = _mesa_image_address3d(&packing, pixels, texImage->Width,
>> -                                        texImage->Height, format, type,
>> -                                        slice, 0, 0);
>> +            dst = _mesa_image_address3d(&packing, pixels, width, height,
>> +                                        format, type, slice, 0, 0);
>>            }
>>            else {
>>               dst = pixels;
>>            }
>> -         result = decompress_texture_image(ctx, texImage, slice, 0, 0,
>> -                                           texImage->Width, texImage->Height,
>> +         result = decompress_texture_image(ctx, texImage, slice,
>> +                                           xoffset, yoffset, width, height,
>>                                              format, type, dst);
>>            if (!result)
>>               break;
>> @@ -3234,7 +3235,8 @@ _mesa_meta_GetTexImage(struct gl_context *ctx,
>>            return;
>>      }
>>
>> -   _mesa_GetTexImage_sw(ctx, format, type, pixels, texImage);
>> +   _mesa_GetTexSubImage_sw(ctx, xoffset, yoffset, zoffset,
>> +                           width, height, depth, format, type, pixels, texImage);
>>   }
>>
>>
>> diff --git a/src/mesa/drivers/common/meta.h b/src/mesa/drivers/common/meta.h
>> index f5b74c4..fe43915 100644
>> --- a/src/mesa/drivers/common/meta.h
>> +++ b/src/mesa/drivers/common/meta.h
>> @@ -560,9 +560,11 @@ _mesa_meta_ClearTexSubImage(struct gl_context *ctx,
>>                               const GLvoid *clearValue);
>>
>>   extern void
>> -_mesa_meta_GetTexImage(struct gl_context *ctx,
>> -                       GLenum format, GLenum type, GLvoid *pixels,
>> -                       struct gl_texture_image *texImage);
>> +_mesa_meta_GetTexSubImage(struct gl_context *ctx,
>> +                          GLint xoffset, GLint yoffset, GLint zoffset,
>> +                          GLsizei width, GLsizei height, GLsizei depth,
>> +                          GLenum format, GLenum type, GLvoid *pixels,
>> +                          struct gl_texture_image *texImage);
>>
>>   extern void
>>   _mesa_meta_DrawTex(struct gl_context *ctx, GLfloat x, GLfloat y, GLfloat z,
>> diff --git a/src/mesa/main/dd.h b/src/mesa/main/dd.h
>> index d783e34..754abd5 100644
>> --- a/src/mesa/main/dd.h
>> +++ b/src/mesa/main/dd.h
>> @@ -232,11 +232,13 @@ struct dd_function_table {
>>
>>
>>      /**
>> -    * Called by glGetTexImage().
>> +    * Called by glGetTexImage(), glGetTextureSubImage().
>>       */
>> -   void (*GetTexImage)( struct gl_context *ctx,
>> -                        GLenum format, GLenum type, GLvoid *pixels,
>> -                        struct gl_texture_image *texImage );
>> +   void (*GetTexSubImage)(struct gl_context *ctx,
>> +                          GLint xoffset, GLint yoffset, GLint zoffset,
>> +                          GLsizei width, GLsizei height, GLint depth,
>> +                          GLenum format, GLenum type, GLvoid *pixels,
>> +                          struct gl_texture_image *texImage);
>>
>>      /**
>>       * Called by glClearTex[Sub]Image
>> diff --git a/src/mesa/main/debug.c b/src/mesa/main/debug.c
>> index c93e84a..9cf4379 100644
>> --- a/src/mesa/main/debug.c
>> +++ b/src/mesa/main/debug.c
>> @@ -272,7 +272,9 @@ write_texture_image(struct gl_texture_object *texObj,
>>         store = ctx->Pack; /* save */
>>         ctx->Pack = ctx->DefaultPacking;
>>
>> -      ctx->Driver.GetTexImage(ctx, GL_RGBA, GL_UNSIGNED_BYTE, buffer, img);
>> +      ctx->Driver.GetTexSubImage(ctx,
>> +                                 0, 0, 0, img->Width, img->Height, img->Depth,
>> +                                 GL_RGBA, GL_UNSIGNED_BYTE, buffer, img);
>>
>>         /* make filename */
>>         _mesa_snprintf(s, sizeof(s), "/tmp/tex%u.l%u.f%u.ppm", texObj->Name, level, face);
>> diff --git a/src/mesa/main/mipmap.c b/src/mesa/main/mipmap.c
>> index 7732d09..1e22f93 100644
>> --- a/src/mesa/main/mipmap.c
>> +++ b/src/mesa/main/mipmap.c
>> @@ -2077,9 +2077,12 @@ generate_mipmap_compressed(struct gl_context *ctx, GLenum target,
>>
>>         /* Get the uncompressed image */
>>         assert(srcImage->Level == texObj->BaseLevel);
>> -      ctx->Driver.GetTexImage(ctx,
>> -                              temp_base_format, temp_datatype,
>> -                              temp_src, srcImage);
>> +      ctx->Driver.GetTexSubImage(ctx,
>> +                                 0, 0, 0,
>> +                                 srcImage->Width, srcImage->Height,
>> +                                 srcImage->Depth,
>> +                                 temp_base_format, temp_datatype,
>> +                                 temp_src, srcImage);
>>         /* restore packing mode */
>>         ctx->Pack = save;
>>      }
>> diff --git a/src/mesa/main/texgetimage.c b/src/mesa/main/texgetimage.c
>> index 92b4d67..01f1a15 100644
>> --- a/src/mesa/main/texgetimage.c
>> +++ b/src/mesa/main/texgetimage.c
>> @@ -684,15 +684,17 @@ get_tex_memcpy(struct gl_context *ctx, GLenum format, GLenum type,
>>
>>
>>   /**
>> - * This is the software fallback for Driver.GetTexImage().
>> + * This is the software fallback for Driver.GetTexSubImage().
>>    * All error checking will have been done before this routine is called.
>>    * We'll call ctx->Driver.MapTextureImage() to access the data, then
>>    * unmap with ctx->Driver.UnmapTextureImage().
>>    */
>>   void
>> -_mesa_GetTexImage_sw(struct gl_context *ctx,
>> -                     GLenum format, GLenum type, GLvoid *pixels,
>> -                     struct gl_texture_image *texImage)
>> +_mesa_GetTexSubImage_sw(struct gl_context *ctx,
>> +                        GLint xoffset, GLint yoffset, GLint zoffset,
>> +                        GLsizei width, GLsizei height, GLint depth,
>> +                        GLenum format, GLenum type, GLvoid *pixels,
>> +                        struct gl_texture_image *texImage)
>>   {
>>      const GLuint dimensions =
>>         _mesa_get_texture_dimensions(texImage->TexObject->Target);
>> @@ -1022,7 +1024,10 @@ _mesa_get_texture_image(struct gl_context *ctx,
>>
>>      _mesa_lock_texture(ctx, texObj);
>>      {
>> -      ctx->Driver.GetTexImage(ctx, format, type, pixels, texImage);
>> +      ctx->Driver.GetTexSubImage(ctx, 0, 0, 0,
>> +                                 texImage->Width, texImage->Height,
>> +                                 texImage->Depth,
>> +                                 format, type, pixels, texImage);
>>      }
>>      _mesa_unlock_texture(ctx, texObj);
>>   }
>> diff --git a/src/mesa/main/texgetimage.h b/src/mesa/main/texgetimage.h
>> index 1fa2f59..611b1bd 100644
>> --- a/src/mesa/main/texgetimage.h
>> +++ b/src/mesa/main/texgetimage.h
>> @@ -37,10 +37,11 @@ extern GLenum
>>   _mesa_base_pack_format(GLenum format);
>>
>>   extern void
>> -_mesa_GetTexImage_sw(struct gl_context *ctx,
>> -                     GLenum format, GLenum type, GLvoid *pixels,
>> -                     struct gl_texture_image *texImage);
>> -
>> +_mesa_GetTexSubImage_sw(struct gl_context *ctx,
>> +                        GLint xoffset, GLint yoffset, GLint zoffset,
>> +                        GLsizei width, GLsizei height, GLint depth,
>> +                        GLenum format, GLenum type, GLvoid *pixels,
>> +                        struct gl_texture_image *texImage);
>>
>>   extern void
>>   _mesa_GetCompressedTexImage_sw(struct gl_context *ctx,
>> diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c
>> index 7ea3846..8719ab8 100644
>> --- a/src/mesa/state_tracker/st_cb_texture.c
>> +++ b/src/mesa/state_tracker/st_cb_texture.c
>> @@ -896,7 +896,7 @@ st_CompressedTexImage(struct gl_context *ctx, GLuint dims,
>>
>>
>>   /**
>> - * Called via ctx->Driver.GetTexImage()
>> + * Called via ctx->Driver.GetTexSubImage()
>>    *
>>    * This uses a blit to copy the texture to a texture format which matches
>>    * the format and type combo and then a fast read-back is done using memcpy.
>> @@ -910,16 +910,15 @@ st_CompressedTexImage(struct gl_context *ctx, GLuint dims,
>>    *       we do here should be free in such cases.
>>    */
>>   static void
>> -st_GetTexImage(struct gl_context * ctx,
>> -               GLenum format, GLenum type, GLvoid * pixels,
>> -               struct gl_texture_image *texImage)
>> +st_GetTexSubImage(struct gl_context * ctx,
>> +                  GLint xoffset, GLint yoffset, GLint zoffset,
>> +                  GLsizei width, GLsizei height, GLint depth,
>> +                  GLenum format, GLenum type, GLvoid * pixels,
>> +                  struct gl_texture_image *texImage)
>>   {
>>      struct st_context *st = st_context(ctx);
>>      struct pipe_context *pipe = st->pipe;
>>      struct pipe_screen *screen = pipe->screen;
>> -   GLuint width = texImage->Width;
>> -   GLuint height = texImage->Height;
>> -   GLuint depth = texImage->Depth;
>>      struct st_texture_image *stImage = st_texture_image(texImage);
>>      struct st_texture_object *stObj = st_texture_object(texImage->TexObject);
>>      struct pipe_resource *src = stObj->pt;
>> @@ -1054,7 +1053,7 @@ st_GetTexImage(struct gl_context * ctx,
>>         }
>>      }
>>
>> -   /* create the destination texture */
>> +   /* create the destination texture of size (width X height X depth) */
>>      memset(&dst_templ, 0, sizeof(dst_templ));
>>      dst_templ.target = pipe_target;
>>      dst_templ.format = dst_format;
>> @@ -1076,6 +1075,10 @@ st_GetTexImage(struct gl_context * ctx,
>>         height = 1;
>>      }
>>
>> +   assert(texImage->Face == 0 ||
>> +          texImage->TexObject->MinLayer == 0 ||
>> +          zoffset == 0);
>> +
>>      memset(&blit, 0, sizeof(blit));
>>      blit.src.resource = src;
>>      blit.src.level = texImage->Level + texImage->TexObject->MinLevel;
>> @@ -1083,9 +1086,11 @@ st_GetTexImage(struct gl_context * ctx,
>>      blit.dst.resource = dst;
>>      blit.dst.level = 0;
>>      blit.dst.format = dst->format;
>> -   blit.src.box.x = blit.dst.box.x = 0;
>> -   blit.src.box.y = blit.dst.box.y = 0;
>> -   blit.src.box.z = texImage->Face + texImage->TexObject->MinLayer;
>> +   blit.src.box.x = xoffset;
>> +   blit.dst.box.x = 0;
>> +   blit.src.box.y = yoffset;
>> +   blit.dst.box.y = 0;
>> +   blit.src.box.z = texImage->Face + texImage->TexObject->MinLayer + zoffset;
>>      blit.dst.box.z = 0;
>>      blit.src.box.width = blit.dst.box.width = width;
>>      blit.src.box.height = blit.dst.box.height = height;
>> @@ -1206,7 +1211,9 @@ end:
>>
>>   fallback:
>>      if (!done) {
>> -      _mesa_GetTexImage_sw(ctx, format, type, pixels, texImage);
>> +      _mesa_GetTexSubImage_sw(ctx, xoffset, yoffset, zoffset,
>> +                              width, height, depth,
>> +                              format, type, pixels, texImage);
>>      }
>>   }
>>
>> @@ -1876,7 +1883,7 @@ st_init_texture_functions(struct dd_function_table *functions)
>>      functions->CopyTexSubImage = st_CopyTexSubImage;
>>      functions->GenerateMipmap = st_generate_mipmap;
>>
>> -   functions->GetTexImage = st_GetTexImage;
>> +   functions->GetTexSubImage = st_GetTexSubImage;
>>
>>      /* compressed texture functions */
>>      functions->CompressedTexImage = st_CompressedTexImage;
>> --
>> 1.9.1
>>
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