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#ifndef RENDER_GLES2_H
#define RENDER_GLES2_H
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#include <wlr/backend.h>
#include <wlr/render/egl.h>
#include <wlr/render/gles2.h>
#include <wlr/render/interface.h>
#include <wlr/render/wlr_renderer.h>
#include <wlr/render/wlr_texture.h>
#include <wlr/util/addon.h>
#include <wlr/util/log.h>
struct wlr_gles2_pixel_format {
uint32_t drm_format;
// optional field, if empty then internalformat = format
GLint gl_internalformat;
GLint gl_format, gl_type;
bool has_alpha;
};
struct wlr_gles2_tex_shader {
GLuint program;
GLint proj;
GLint tex;
GLint alpha;
GLint pos_attrib;
GLint tex_attrib;
};
struct wlr_gles2_renderer {
struct wlr_renderer wlr_renderer;
float projection[9];
struct wlr_egl *egl;
int drm_fd;
const char *exts_str;
struct {
bool EXT_read_format_bgra;
bool KHR_debug;
bool OES_egl_image_external;
bool OES_egl_image;
bool EXT_texture_type_2_10_10_10_REV;
bool OES_texture_half_float_linear;
bool EXT_texture_norm16;
} exts;
struct {
PFNGLEGLIMAGETARGETTEXTURE2DOESPROC glEGLImageTargetTexture2DOES;
PFNGLDEBUGMESSAGECALLBACKKHRPROC glDebugMessageCallbackKHR;
PFNGLDEBUGMESSAGECONTROLKHRPROC glDebugMessageControlKHR;
PFNGLPOPDEBUGGROUPKHRPROC glPopDebugGroupKHR;
PFNGLPUSHDEBUGGROUPKHRPROC glPushDebugGroupKHR;
PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC glEGLImageTargetRenderbufferStorageOES;
PFNGLGETGRAPHICSRESETSTATUSKHRPROC glGetGraphicsResetStatusKHR;
} procs;
struct {
struct {
GLuint program;
GLint proj;
GLint color;
GLint pos_attrib;
} quad;
struct wlr_gles2_tex_shader tex_rgba;
struct wlr_gles2_tex_shader tex_rgbx;
struct wlr_gles2_tex_shader tex_ext;
} shaders;
struct wl_list buffers; // wlr_gles2_buffer.link
struct wl_list textures; // wlr_gles2_texture.link
struct wlr_gles2_buffer *current_buffer;
uint32_t viewport_width, viewport_height;
};
struct wlr_gles2_buffer {
struct wlr_buffer *buffer;
struct wlr_gles2_renderer *renderer;
struct wl_list link; // wlr_gles2_renderer.buffers
EGLImageKHR image;
GLuint rbo;
GLuint fbo;
struct wlr_addon addon;
};
struct wlr_gles2_texture {
struct wlr_texture wlr_texture;
struct wlr_gles2_renderer *renderer;
struct wl_list link; // wlr_gles2_renderer.textures
// Basically:
// GL_TEXTURE_2D == mutable
// GL_TEXTURE_EXTERNAL_OES == immutable
GLenum target;
GLuint tex;
EGLImageKHR image;
bool has_alpha;
// Only affects target == GL_TEXTURE_2D
uint32_t drm_format; // used to interpret upload data
// If imported from a wlr_buffer
struct wlr_buffer *buffer;
struct wlr_addon buffer_addon;
};
bool is_gles2_pixel_format_supported(const struct wlr_gles2_renderer *renderer,
const struct wlr_gles2_pixel_format *format);
const struct wlr_gles2_pixel_format *get_gles2_format_from_drm(uint32_t fmt);
const struct wlr_gles2_pixel_format *get_gles2_format_from_gl(
GLint gl_format, GLint gl_type, bool alpha);
const uint32_t *get_gles2_shm_formats(const struct wlr_gles2_renderer *renderer,
size_t *len);
struct wlr_gles2_renderer *gles2_get_renderer(
struct wlr_renderer *wlr_renderer);
struct wlr_gles2_texture *gles2_get_texture(
struct wlr_texture *wlr_texture);
struct wlr_texture *gles2_texture_from_buffer(struct wlr_renderer *wlr_renderer,
struct wlr_buffer *buffer);
void gles2_texture_destroy(struct wlr_gles2_texture *texture);
void push_gles2_debug_(struct wlr_gles2_renderer *renderer,
const char *file, const char *func);
#define push_gles2_debug(renderer) push_gles2_debug_(renderer, _WLR_FILENAME, __func__)
void pop_gles2_debug(struct wlr_gles2_renderer *renderer);
#endif
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