6f480c7530
This removes the gl centric _cogl_texture_prepare_for_upload api from cogl-texture.c and instead adds a _cogl_bitmap_convert_for_upload() api which everything now uses instead. GL specific code that needed the gl internal/format/type enums returned by _cogl_texture_prepare_for_upload now use ->pixel_format_to_gl directly. Since there was a special case optimization in cogl_texture_new_from_file that aimed to avoid copying the temporary bitmap that's created for the given file and allow conversions to happen in-place the new _cogl_bitmap_convert_for_upload() api supports converting in place depending on a 'can_convert_in_place' argument. This ability to convert bitmaps in-place has been integrated across the different components as appropriate. In updating cogl-texture-2d-sliced.c this was able to remove a number of other GL specific parts to how spans are setup. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit e190dd23c655da34b9c5c263a9f6006dcc0413b0) Conflicts: cogl/cogl-auto-texture.c cogl/cogl.symbols
286 lines
10 KiB
C
286 lines
10 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2012 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#ifndef __COGL_DRIVER_H
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#define __COGL_DRIVER_H
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#include "cogl-context.h"
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#include "cogl-offscreen.h"
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#include "cogl-framebuffer-private.h"
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#include "cogl-attribute-private.h"
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typedef struct _CoglDriverVtable CoglDriverVtable;
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struct _CoglDriverVtable
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{
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/* TODO: factor this out since this is OpenGL specific and
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* so can be ignored by non-OpenGL drivers. */
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CoglBool
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(* pixel_format_from_gl_internal) (CoglContext *context,
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GLenum gl_int_format,
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CoglPixelFormat *out_format);
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/* TODO: factor this out since this is OpenGL specific and
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* so can be ignored by non-OpenGL drivers. */
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CoglPixelFormat
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(* pixel_format_to_gl) (CoglContext *context,
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CoglPixelFormat format,
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GLenum *out_glintformat,
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GLenum *out_glformat,
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GLenum *out_gltype);
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CoglBool
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(* update_features) (CoglContext *context,
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CoglError **error);
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CoglBool
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(* offscreen_allocate) (CoglOffscreen *offscreen,
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CoglError **error);
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void
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(* offscreen_free) (CoglOffscreen *offscreen);
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void
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(* framebuffer_flush_state) (CoglFramebuffer *draw_buffer,
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CoglFramebuffer *read_buffer,
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CoglFramebufferState state);
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void
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(* framebuffer_clear) (CoglFramebuffer *framebuffer,
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unsigned long buffers,
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float red,
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float green,
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float blue,
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float alpha);
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void
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(* framebuffer_query_bits) (CoglFramebuffer *framebuffer,
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CoglFramebufferBits *bits);
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void
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(* framebuffer_finish) (CoglFramebuffer *framebuffer);
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void
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(* framebuffer_discard_buffers) (CoglFramebuffer *framebuffer,
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unsigned long buffers);
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void
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(* framebuffer_draw_attributes) (CoglFramebuffer *framebuffer,
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CoglPipeline *pipeline,
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CoglVerticesMode mode,
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int first_vertex,
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int n_vertices,
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CoglAttribute **attributes,
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int n_attributes,
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CoglDrawFlags flags);
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void
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(* framebuffer_draw_indexed_attributes) (CoglFramebuffer *framebuffer,
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CoglPipeline *pipeline,
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CoglVerticesMode mode,
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int first_vertex,
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int n_vertices,
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CoglIndices *indices,
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CoglAttribute **attributes,
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int n_attributes,
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CoglDrawFlags flags);
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CoglBool
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(* framebuffer_read_pixels_into_bitmap) (CoglFramebuffer *framebuffer,
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int x,
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int y,
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CoglReadPixelsFlags source,
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CoglBitmap *bitmap,
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CoglError **error);
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/* Destroys any driver specific resources associated with the given
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* 2D texture. */
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void
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(* texture_2d_free) (CoglTexture2D *tex_2d);
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/* Returns TRUE if the driver can support creating a 2D texture with
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* the given geometry and specified internal format.
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*/
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CoglBool
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(* texture_2d_can_create) (CoglContext *ctx,
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int width,
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int height,
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CoglPixelFormat internal_format);
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/* Initializes driver private state before allocating any specific
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* storage for a 2D texture, where base texture and texture 2D
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* members will already be initialized before passing control to
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* the driver.
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*/
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void
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(* texture_2d_init) (CoglTexture2D *tex_2d);
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/* Allocates (uninitialized) storage for the given texture according
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* to the configured size and format of the texture */
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CoglBool
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(* texture_2d_allocate) (CoglTexture *tex,
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CoglError **error);
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/* Instantiates a new CoglTexture2D object with storage initialized
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* with the contents of the given bitmap, using the specified
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* internal format.
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*/
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CoglTexture2D *
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(* texture_2d_new_from_bitmap) (CoglBitmap *bmp,
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CoglPixelFormat internal_format,
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CoglBool can_convert_in_place,
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CoglError **error);
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#if defined (COGL_HAS_EGL_SUPPORT) && defined (EGL_KHR_image_base)
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/* Instantiates a new CoglTexture2D object with storage initialized
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* with the contents of the given EGL image.
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*
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* This is optional for drivers to support
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*/
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CoglTexture2D *
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(* egl_texture_2d_new_from_image) (CoglContext *ctx,
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int width,
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int height,
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CoglPixelFormat format,
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EGLImageKHR image,
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CoglError **error);
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#endif
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/* Initialize the specified region of storage of the given texture
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* with the contents of the specified framebuffer region
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*/
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void
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(* texture_2d_copy_from_framebuffer) (CoglTexture2D *tex_2d,
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int src_x,
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int src_y,
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int width,
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int height,
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CoglFramebuffer *src_fb,
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int dst_x,
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int dst_y,
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int level);
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/* If the given texture has a corresponding OpenGL texture handle
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* then return that.
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*
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* This is optional
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*/
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unsigned int
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(* texture_2d_get_gl_handle) (CoglTexture2D *tex_2d);
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/* Update all mipmap levels > 0 */
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void
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(* texture_2d_generate_mipmap) (CoglTexture2D *tex_2d);
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/* Initialize the specified region of storage of the given texture
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* with the contents of the specified bitmap region
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*
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* Since this may need to create the underlying storage first
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* it may throw a NO_MEMORY error.
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*/
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CoglBool
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(* texture_2d_copy_from_bitmap) (CoglTexture2D *tex_2d,
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int src_x,
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int src_y,
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int width,
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int height,
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CoglBitmap *bitmap,
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int dst_x,
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int dst_y,
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int level,
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CoglError **error);
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/* Reads back the full contents of the given texture and write it to
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* @data in the given @format and with the given @rowstride.
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*
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* This is optional
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*/
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void
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(* texture_2d_get_data) (CoglTexture2D *tex_2d,
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CoglPixelFormat format,
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int rowstride,
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uint8_t *data);
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/* Prepares for drawing by flushing the journal, framebuffer state,
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* pipeline state and attribute state.
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*/
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void
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(* flush_attributes_state) (CoglFramebuffer *framebuffer,
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CoglPipeline *pipeline,
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CoglFlushLayerState *layer_state,
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CoglDrawFlags flags,
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CoglAttribute **attributes,
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int n_attributes);
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/* Flushes the clip stack to the GPU using a combination of the
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* stencil buffer, scissor and clip plane state.
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*/
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void
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(* clip_stack_flush) (CoglClipStack *stack, CoglFramebuffer *framebuffer);
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/* Enables the driver to create some meta data to represent a buffer
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* but with no corresponding storage allocated yet.
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*/
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void
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(* buffer_create) (CoglBuffer *buffer);
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void
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(* buffer_destroy) (CoglBuffer *buffer);
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/* Maps a buffer into the CPU */
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void *
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(* buffer_map_range) (CoglBuffer *buffer,
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size_t offset,
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size_t size,
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CoglBufferAccess access,
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CoglBufferMapHint hints,
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CoglError **error);
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/* Unmaps a buffer */
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void
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(* buffer_unmap) (CoglBuffer *buffer);
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/* Uploads data to the buffer without needing to map it necessarily
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*/
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CoglBool
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(* buffer_set_data) (CoglBuffer *buffer,
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unsigned int offset,
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const void *data,
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unsigned int size,
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CoglError **error);
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};
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#define COGL_DRIVER_ERROR (_cogl_driver_error_quark ())
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typedef enum { /*< prefix=COGL_DRIVER_ERROR >*/
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COGL_DRIVER_ERROR_UNKNOWN_VERSION,
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COGL_DRIVER_ERROR_INVALID_VERSION,
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COGL_DRIVER_ERROR_NO_SUITABLE_DRIVER_FOUND,
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COGL_DRIVER_ERROR_FAILED_TO_LOAD_LIBRARY
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} CoglDriverError;
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uint32_t
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_cogl_driver_error_quark (void);
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#endif /* __COGL_DRIVER_H */
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