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f62698cbeb
This allows to manipulate textures before feeding them to the render pass e.g. to greyscale them for a11y reasons or to blur them. Signed-off-by: Guido Günther <agx@sigxcpu.org>
53 lines
1.8 KiB
C
53 lines
1.8 KiB
C
/*
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* This an unstable interface of wlroots. No guarantees are made regarding the
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* future consistency of this API.
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*/
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#ifndef WLR_USE_UNSTABLE
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#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
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#endif
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#ifndef WLR_RENDER_GLES2_H
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#define WLR_RENDER_GLES2_H
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#include <GLES2/gl2.h>
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#include <wlr/render/wlr_renderer.h>
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struct wlr_egl;
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/**
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* OpenGL ES 2 renderer.
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*
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* Care must be taken to avoid stepping each other's toes with EGL contexts:
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* the current EGL is global state. The GLES2 renderer operations will save
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* and restore any previous EGL context when called. A render pass is seen as
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* a single operation.
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*
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* The GLES2 renderer doesn't support arbitrarily nested render passes. It
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* supports a subset only: after a nested render pass is created, any parent
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* render pass can't be used before the nested render pass is submitted.
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*/
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struct wlr_renderer *wlr_gles2_renderer_create_with_drm_fd(int drm_fd);
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struct wlr_renderer *wlr_gles2_renderer_create(struct wlr_egl *egl);
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struct wlr_egl *wlr_gles2_renderer_get_egl(struct wlr_renderer *renderer);
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bool wlr_gles2_renderer_check_ext(struct wlr_renderer *renderer, const char *ext);
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GLuint wlr_gles2_renderer_get_buffer_fbo(struct wlr_renderer *renderer, struct wlr_buffer *buffer);
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struct wlr_gles2_texture_attribs {
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GLenum target; /* either GL_TEXTURE_2D or GL_TEXTURE_EXTERNAL_OES */
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GLuint tex;
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bool has_alpha;
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};
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bool wlr_renderer_is_gles2(const struct wlr_renderer *wlr_renderer);
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bool wlr_render_timer_is_gles2(const struct wlr_render_timer *timer);
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bool wlr_texture_is_gles2(const struct wlr_texture *texture);
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void wlr_gles2_texture_get_attribs(struct wlr_texture *texture,
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struct wlr_gles2_texture_attribs *attribs);
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struct wlr_texture *wlr_gles2_texture_from_attribs(struct wlr_renderer *wlr_renderer,
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struct wlr_gles2_texture_attribs *attribs, int width, int height);
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#endif
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