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https://gitlab.freedesktop.org/wayland/weston.git
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00f7bf91d8
This new utility parses extension strings and fills a bitfield of matched flags. This will be used to store EGL and GL extension flags. Signed-off-by: Loïc Molinari <loic.molinari@collabora.com>
402 lines
10 KiB
C
402 lines
10 KiB
C
/*
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* Copyright © 2019 Collabora, Ltd.
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* Copyright © 2019 Harish Krupo
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* Copyright © 2019 Intel Corporation
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* Copyright 2021 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/*
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* GL renderer best practices:
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*
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* 1. Texture units
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* 1. Fixed allocation using the gl_tex_unit enumeration.
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* 2. Any functions changing the active unit must restore it to 0 before
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* return so that other functions can assume a default value.
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*
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* 1. Pixel storage modes
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* 1. Any functions changing modes must restore them to their default values
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* before return so that other functions can assume default values.
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*/
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#ifndef GL_RENDERER_INTERNAL_H
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#define GL_RENDERER_INTERNAL_H
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#include <stdbool.h>
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#include <time.h>
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#include <wayland-util.h>
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#include <GLES2/gl2.h>
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#include <GLES2/gl2ext.h>
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#include "shared/weston-egl-ext.h" /* for PFN* stuff */
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#include <libweston/helpers.h>
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/* Max number of images per buffer. */
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#define SHADER_INPUT_TEX_MAX 3
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#define EXT(string, flag) { string, ARRAY_LENGTH(string) - 1, (uint64_t) flag }
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/* Keep the following in sync with vertex.glsl. */
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enum gl_shader_texcoord_input {
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SHADER_TEXCOORD_INPUT_ATTRIB = 0,
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SHADER_TEXCOORD_INPUT_SURFACE,
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};
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enum gl_shader_texture_variant {
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SHADER_VARIANT_NONE = 0,
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/* Keep the following in sync with fragment.glsl. */
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SHADER_VARIANT_RGBX,
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SHADER_VARIANT_RGBA,
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SHADER_VARIANT_Y_U_V,
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SHADER_VARIANT_Y_UV,
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SHADER_VARIANT_Y_XUXV,
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SHADER_VARIANT_XYUV,
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SHADER_VARIANT_SOLID,
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SHADER_VARIANT_EXTERNAL,
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};
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/* Keep the following in sync with fragment.glsl. */
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enum gl_shader_color_curve {
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SHADER_COLOR_CURVE_IDENTITY = 0,
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SHADER_COLOR_CURVE_LUT_3x1D,
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SHADER_COLOR_CURVE_LINPOW,
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SHADER_COLOR_CURVE_POWLIN,
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};
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/* Keep the following in sync with fragment.glsl. */
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enum gl_shader_color_mapping {
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SHADER_COLOR_MAPPING_IDENTITY = 0,
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SHADER_COLOR_MAPPING_3DLUT,
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SHADER_COLOR_MAPPING_MATRIX,
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};
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enum gl_shader_attrib_loc {
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SHADER_ATTRIB_LOC_POSITION = 0,
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SHADER_ATTRIB_LOC_TEXCOORD,
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SHADER_ATTRIB_LOC_BARYCENTRIC,
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};
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enum gl_tex_unit {
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TEX_UNIT_IMAGES = 0,
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TEX_UNIT_COLOR_PRE_CURVE = SHADER_INPUT_TEX_MAX,
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TEX_UNIT_COLOR_MAPPING,
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TEX_UNIT_COLOR_POST_CURVE,
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TEX_UNIT_WIREFRAME,
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TEX_UNIT_LAST,
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};
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static_assert(TEX_UNIT_LAST < 8, "OpenGL ES 2.0 requires at least 8 texture "
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"units. Consider replacing this assert with a "
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"GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS check at display creation "
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"to require more.");
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struct gl_extension_table {
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const char *str;
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size_t len;
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uint64_t flag;
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};
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/** GL shader requirements key
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*
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* This structure is used as a binary blob key for building and searching
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* shaders. Therefore it must not contain any bytes or bits the C compiler
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* would be free to leave undefined e.g. after struct initialization,
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* struct assignment, or member operations.
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*
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* Use 'pahole' from package 'dwarves' to inspect this structure.
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*/
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struct gl_shader_requirements
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{
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unsigned texcoord_input:1; /* enum gl_shader_texcoord_input */
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unsigned variant:4; /* enum gl_shader_texture_variant */
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bool input_is_premult:1;
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bool tint:1;
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bool wireframe:1;
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unsigned color_pre_curve:2; /* enum gl_shader_color_curve */
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unsigned color_mapping:2; /* enum gl_shader_color_mapping */
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unsigned color_post_curve:2; /* enum gl_shader_color_curve */
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unsigned color_channel_order:2; /* enum gl_channel_order */
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/*
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* The total size of all bitfields plus pad_bits_ must fill up exactly
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* how many bytes the compiler allocates for them together.
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*/
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unsigned pad_bits_:16;
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};
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static_assert(sizeof(struct gl_shader_requirements) ==
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4 /* total bitfield size in bytes */,
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"struct gl_shader_requirements must not contain implicit padding");
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struct gl_shader;
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struct weston_color_transform;
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struct dmabuf_allocator;
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struct gl_shader_config {
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struct gl_shader_requirements req;
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struct weston_matrix projection;
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struct weston_matrix surface_to_buffer;
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float view_alpha;
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GLfloat unicolor[4];
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GLfloat tint[4];
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GLint input_tex_filter; /* GL_NEAREST or GL_LINEAR */
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GLuint input_tex[SHADER_INPUT_TEX_MAX];
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GLuint wireframe_tex;
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union {
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struct {
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GLuint tex;
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GLfloat scale_offset[2];
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} lut_3x1d;
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struct {
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GLfloat params[3][10];
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GLboolean clamped_input;
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} parametric;
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} color_pre_curve;
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union {
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struct {
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GLuint tex;
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GLfloat scale_offset[2];
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} lut3d;
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GLfloat matrix[9];
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} color_mapping;
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union {
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struct {
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GLuint tex;
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GLfloat scale_offset[2];
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} lut_3x1d;
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struct {
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GLfloat params[3][10];
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GLboolean clamped_input;
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} parametric;
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} color_post_curve;
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};
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struct gl_renderer {
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struct weston_renderer base;
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struct weston_compositor *compositor;
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struct weston_log_scope *renderer_scope;
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/* Debug modes. */
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struct weston_binding *debug_mode_binding;
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int debug_mode;
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bool debug_clear;
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bool wireframe_dirty;
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GLuint wireframe_tex;
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int wireframe_size;
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int nbatches;
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EGLenum platform;
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EGLDisplay egl_display;
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EGLContext egl_context;
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EGLConfig egl_config;
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uint32_t gl_version;
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/* Vertex streams. */
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struct wl_array position_stream;
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struct wl_array barycentric_stream;
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struct wl_array indices;
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EGLDeviceEXT egl_device;
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const char *drm_device;
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struct weston_drm_format_array supported_formats;
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PFNGLEGLIMAGETARGETTEXTURE2DOESPROC image_target_texture_2d;
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PFNGLTEXIMAGE3DOESPROC tex_image_3d;
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PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC image_target_renderbuffer_storage;
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PFNEGLCREATEIMAGEKHRPROC create_image;
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PFNEGLDESTROYIMAGEKHRPROC destroy_image;
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PFNEGLSWAPBUFFERSWITHDAMAGEEXTPROC swap_buffers_with_damage;
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PFNEGLGETPLATFORMDISPLAYEXTPROC get_platform_display;
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PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC create_platform_window;
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bool has_platform_base;
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PFNEGLBINDWAYLANDDISPLAYWL bind_display;
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PFNEGLUNBINDWAYLANDDISPLAYWL unbind_display;
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PFNEGLQUERYWAYLANDBUFFERWL query_buffer;
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bool has_bind_display;
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bool has_context_priority;
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bool has_egl_image_external;
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bool has_egl_buffer_age;
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bool has_egl_partial_update;
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PFNEGLSETDAMAGEREGIONKHRPROC set_damage_region;
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bool has_configless_context;
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bool has_surfaceless_context;
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bool has_dmabuf_import;
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struct wl_list dmabuf_images;
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struct wl_list dmabuf_formats;
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bool has_texture_type_2_10_10_10_rev;
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bool has_gl_texture_rg;
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bool has_texture_norm16;
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bool has_texture_storage;
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bool has_pack_reverse;
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bool has_rgb8_rgba8;
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bool has_pbo;
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GLenum pbo_usage;
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PFNGLMAPBUFFERRANGEEXTPROC map_buffer_range;
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PFNGLUNMAPBUFFEROESPROC unmap_buffer;
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struct wl_list pending_capture_list;
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struct gl_shader *current_shader;
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struct gl_shader *fallback_shader;
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struct wl_signal destroy_signal;
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bool has_dmabuf_import_modifiers;
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PFNEGLQUERYDMABUFFORMATSEXTPROC query_dmabuf_formats;
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PFNEGLQUERYDMABUFMODIFIERSEXTPROC query_dmabuf_modifiers;
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bool has_device_query;
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PFNEGLQUERYDISPLAYATTRIBEXTPROC query_display_attrib;
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PFNEGLQUERYDEVICESTRINGEXTPROC query_device_string;
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bool has_native_fence_sync;
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PFNEGLCREATESYNCKHRPROC create_sync;
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PFNEGLDESTROYSYNCKHRPROC destroy_sync;
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PFNEGLDUPNATIVEFENCEFDANDROIDPROC dup_native_fence_fd;
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bool has_wait_sync;
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PFNEGLWAITSYNCKHRPROC wait_sync;
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bool has_disjoint_timer_query;
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PFNGLGENQUERIESEXTPROC gen_queries;
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PFNGLDELETEQUERIESEXTPROC delete_queries;
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PFNGLBEGINQUERYEXTPROC begin_query;
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PFNGLENDQUERYEXTPROC end_query;
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#if !defined(NDEBUG)
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PFNGLGETQUERYOBJECTIVEXTPROC get_query_object_iv;
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#endif
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PFNGLGETQUERYOBJECTUI64VEXTPROC get_query_object_ui64v;
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bool gl_supports_color_transforms;
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/** Shader program cache in most recently used order
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*
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* Uses struct gl_shader::link.
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*/
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struct wl_list shader_list;
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struct weston_log_scope *shader_scope;
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struct dmabuf_allocator *allocator;
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};
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static inline uint32_t
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gl_version(uint16_t major, uint16_t minor)
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{
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return ((uint32_t)major << 16) | minor;
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}
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static inline int
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gl_version_major(uint32_t ver)
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{
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return ver >> 16;
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}
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static inline int
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gl_version_minor(uint32_t ver)
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{
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return ver & 0xffff;
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}
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void
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gl_extensions_add(const struct gl_extension_table *table,
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const char *extensions,
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uint64_t *flags_out);
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static inline struct gl_renderer *
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get_renderer(struct weston_compositor *ec)
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{
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return (struct gl_renderer *)ec->renderer;
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}
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void
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gl_renderer_print_egl_error_state(void);
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void
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gl_renderer_log_extensions(struct gl_renderer *gr,
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const char *name, const char *extensions);
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void
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log_egl_config_info(EGLDisplay egldpy, EGLConfig eglconfig);
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EGLConfig
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gl_renderer_get_egl_config(struct gl_renderer *gr,
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EGLint egl_surface_type,
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const struct pixel_format_info *const *formats,
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unsigned formats_count);
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int
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gl_renderer_setup_egl_display(struct gl_renderer *gr, void *native_display);
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int
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gl_renderer_setup_egl_client_extensions(struct gl_renderer *gr);
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int
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gl_renderer_setup_egl_extensions(struct weston_compositor *ec);
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GLenum
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gl_shader_texture_variant_get_target(enum gl_shader_texture_variant v);
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bool
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gl_shader_texture_variant_can_be_premult(enum gl_shader_texture_variant v);
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void
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gl_shader_destroy(struct gl_renderer *gr, struct gl_shader *shader);
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void
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gl_renderer_shader_list_destroy(struct gl_renderer *gr);
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struct gl_shader *
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gl_renderer_create_fallback_shader(struct gl_renderer *gr);
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void
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gl_renderer_garbage_collect_programs(struct gl_renderer *gr);
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bool
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gl_renderer_use_program(struct gl_renderer *gr,
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const struct gl_shader_config *sconf);
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struct weston_log_scope *
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gl_shader_scope_create(struct gl_renderer *gr);
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bool
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gl_shader_config_set_color_transform(struct gl_renderer *gr,
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struct gl_shader_config *sconf,
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struct weston_color_transform *xform);
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#endif /* GL_RENDERER_INTERNAL_H */
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