| /* |
| * Copyright 2016 Advanced Micro Devices, Inc. |
| * |
| * 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 |
| * on 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 |
| * THE AUTHOR(S) AND/OR THEIR 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. |
| */ |
| |
| #ifndef ST_PBO_H |
| #define ST_PBO_H |
| |
| struct gl_pixelstore_attrib; |
| |
| struct st_context; |
| |
| struct st_pbo_addresses { |
| int xoffset; |
| int yoffset; |
| unsigned width; |
| unsigned height; |
| unsigned depth; |
| |
| unsigned bytes_per_pixel; |
| |
| /* Everything below is filled in by st_pbo_from_pixelstore */ |
| unsigned pixels_per_row; |
| unsigned image_height; |
| |
| /* Everything below is filled in by st_pbo_setup_buffer */ |
| |
| /* Buffer and view. */ |
| struct pipe_resource *buffer; /* non-owning pointer */ |
| unsigned first_element; |
| unsigned last_element; |
| |
| /* Constant buffer for the fragment shader. */ |
| struct { |
| int32_t xoffset; |
| int32_t yoffset; |
| int32_t stride; |
| int32_t image_size; |
| int32_t layer_offset; |
| } constants; |
| }; |
| |
| /* Conversion to apply in the fragment shader. */ |
| enum st_pbo_conversion { |
| ST_PBO_CONVERT_FLOAT = 0, |
| ST_PBO_CONVERT_UINT, |
| ST_PBO_CONVERT_SINT, |
| ST_PBO_CONVERT_UINT_TO_SINT, |
| ST_PBO_CONVERT_SINT_TO_UINT, |
| |
| ST_NUM_PBO_CONVERSIONS |
| }; |
| |
| const struct glsl_type * |
| st_pbo_sampler_type_for_target(enum pipe_texture_target target, |
| enum st_pbo_conversion conv); |
| bool |
| st_pbo_addresses_setup(struct st_context *st, |
| struct pipe_resource *buf, intptr_t buf_offset, |
| struct st_pbo_addresses *addr); |
| |
| bool |
| st_pbo_addresses_pixelstore(struct st_context *st, |
| GLenum gl_target, bool skip_images, |
| const struct gl_pixelstore_attrib *store, |
| const void *pixels, |
| struct st_pbo_addresses *addr); |
| |
| void |
| st_pbo_addresses_invert_y(struct st_pbo_addresses *addr, |
| unsigned viewport_height); |
| |
| bool |
| st_pbo_draw(struct st_context *st, const struct st_pbo_addresses *addr, |
| unsigned surface_width, unsigned surface_height); |
| |
| void * |
| st_pbo_create_vs(struct st_context *st); |
| |
| void * |
| st_pbo_create_gs(struct st_context *st); |
| |
| void * |
| st_pbo_get_upload_fs(struct st_context *st, |
| enum pipe_format src_format, |
| enum pipe_format dst_format, |
| bool need_layer); |
| |
| void * |
| st_pbo_get_download_fs(struct st_context *st, enum pipe_texture_target target, |
| enum pipe_format src_format, |
| enum pipe_format dst_format, |
| bool need_layer); |
| |
| bool |
| st_GetTexSubImage_shader(struct gl_context * ctx, |
| GLint xoffset, GLint yoffset, GLint zoffset, |
| GLsizei width, GLsizei height, GLint depth, |
| GLenum format, GLenum type, void * pixels, |
| struct gl_texture_image *texImage); |
| |
| enum pipe_format |
| st_pbo_get_dst_format(struct gl_context *ctx, enum pipe_texture_target target, |
| enum pipe_format src_format, bool is_compressed, |
| GLenum format, GLenum type, unsigned bind); |
| enum pipe_format |
| st_pbo_get_src_format(struct pipe_screen *screen, enum pipe_format src_format, struct pipe_resource *src); |
| |
| extern void |
| st_init_pbo_helpers(struct st_context *st); |
| |
| extern void |
| st_destroy_pbo_helpers(struct st_context *st); |
| void |
| st_pbo_compute_deinit(struct st_context *st); |
| |
| #endif /* ST_PBO_H */ |