diff options
Diffstat (limited to 'gfx/cairo/cairo/src/cairo-gl-private.h')
| -rw-r--r-- | gfx/cairo/cairo/src/cairo-gl-private.h | 865 |
1 files changed, 0 insertions, 865 deletions
diff --git a/gfx/cairo/cairo/src/cairo-gl-private.h b/gfx/cairo/cairo/src/cairo-gl-private.h deleted file mode 100644 index f02a58763e..0000000000 --- a/gfx/cairo/cairo/src/cairo-gl-private.h +++ /dev/null @@ -1,865 +0,0 @@ -/* cairo - a vector graphics library with display and print output - * - * Copyright © 2009 Eric Anholt - * Copyright © 2009 Chris Wilson - * Copyright © 2005,2010 Red Hat, Inc - * Copyright © 2011 Linaro Limited - * - * This library is free software; you can redistribute it and/or - * modify it either under the terms of the GNU Lesser General Public - * License version 2.1 as published by the Free Software Foundation - * (the "LGPL") or, at your option, under the terms of the Mozilla - * Public License Version 1.1 (the "MPL"). If you do not alter this - * notice, a recipient may use your version of this file under either - * the MPL or the LGPL. - * - * You should have received a copy of the LGPL along with this library - * in the file COPYING-LGPL-2.1; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA - * You should have received a copy of the MPL along with this library - * in the file COPYING-MPL-1.1 - * - * The contents of this file are subject to the Mozilla Public License - * Version 1.1 (the "License"); you may not use this file except in - * compliance with the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY - * OF ANY KIND, either express or implied. See the LGPL or the MPL for - * the specific language governing rights and limitations. - * - * The Original Code is the cairo graphics library. - * - * The Initial Developer of the Original Code is Red Hat, Inc. - * - * Contributor(s): - * Benjamin Otte <otte@gnome.org> - * Carl Worth <cworth@cworth.org> - * Chris Wilson <chris@chris-wilson.co.uk> - * Eric Anholt <eric@anholt.net> - * T. Zachary Laine <whatwasthataddress@gmail.com> - * Alexandros Frantzis <alexandros.frantzis@linaro.org> - */ - -#ifndef CAIRO_GL_PRIVATE_H -#define CAIRO_GL_PRIVATE_H - -#define GL_GLEXT_PROTOTYPES - -#include "cairoint.h" - -#include "cairo-gl.h" -#include "cairo-gl-gradient-private.h" - -#include "cairo-device-private.h" -#include "cairo-error-private.h" -#include "cairo-rtree-private.h" -#include "cairo-scaled-font-private.h" -#include "cairo-spans-compositor-private.h" -#include "cairo-array-private.h" - -#include <assert.h> - -#if CAIRO_HAS_GLESV3_SURFACE -#include <GLES3/gl3.h> -#include <GLES3/gl3ext.h> -#elif CAIRO_HAS_GLESV2_SURFACE -#include <GLES2/gl2.h> -#include <GLES2/gl2ext.h> -#elif CAIRO_HAS_GL_SURFACE -#include <GL/gl.h> -#include <GL/glext.h> -#endif - -#include "cairo-gl-ext-def-private.h" - -#define DEBUG_GL 0 - -#if DEBUG_GL && __GNUC__ -#define UNSUPPORTED(reason) ({ \ - fprintf (stderr, \ - "cairo-gl: hit unsupported operation in %s(), line %d: %s\n", \ - __FUNCTION__, __LINE__, reason); \ - CAIRO_INT_STATUS_UNSUPPORTED; \ -}) -#else -#define UNSUPPORTED(reason) CAIRO_INT_STATUS_UNSUPPORTED -#endif - -#define CAIRO_GL_VERSION_ENCODE(major, minor) ( \ - ((major) * 256) \ - + ((minor) * 1)) - -/* maximal number of shaders we keep in the cache. - * Random number that is hopefully big enough to not cause many cache evictions. */ -#define CAIRO_GL_MAX_SHADERS_PER_CONTEXT 64 - -/* VBO size that we allocate, smaller size means we gotta flush more often, - * but larger means hogging more memory and can cause trouble for drivers - * (especially on embedded devices). Use the CAIRO_GL_VBO_SIZE environment - * variable to set this to a different size. */ -#define CAIRO_GL_VBO_SIZE_DEFAULT (1024*1024) - -typedef struct _cairo_gl_surface cairo_gl_surface_t; - -/* GL flavor is the type of GL supported by the underlying platform. */ -typedef enum cairo_gl_flavor { - CAIRO_GL_FLAVOR_NONE = 0, - CAIRO_GL_FLAVOR_DESKTOP = 1, - CAIRO_GL_FLAVOR_ES2 = 2, - CAIRO_GL_FLAVOR_ES3 = 3 -} cairo_gl_flavor_t; - -/* Indices for vertex attributes used by BindAttribLocation, etc. */ -enum { - CAIRO_GL_VERTEX_ATTRIB_INDEX = 0, - CAIRO_GL_COLOR_ATTRIB_INDEX = 1, - CAIRO_GL_TEXCOORD0_ATTRIB_INDEX = 2, - CAIRO_GL_TEXCOORD1_ATTRIB_INDEX = CAIRO_GL_TEXCOORD0_ATTRIB_INDEX + 1 -}; - -typedef enum cairo_gl_operand_type { - CAIRO_GL_OPERAND_NONE, - CAIRO_GL_OPERAND_CONSTANT, - CAIRO_GL_OPERAND_TEXTURE, - CAIRO_GL_OPERAND_LINEAR_GRADIENT, - CAIRO_GL_OPERAND_RADIAL_GRADIENT_A0, - CAIRO_GL_OPERAND_RADIAL_GRADIENT_NONE, - CAIRO_GL_OPERAND_RADIAL_GRADIENT_EXT, - - CAIRO_GL_OPERAND_COUNT -} cairo_gl_operand_type_t; - -/* This union structure describes a potential source or mask operand to the - * compositing equation. - */ -typedef struct cairo_gl_operand { - cairo_gl_operand_type_t type; - union { - struct { - GLuint tex; - cairo_gl_surface_t *surface; - cairo_gl_surface_t *owns_surface; - cairo_surface_attributes_t attributes; - int texgen; - } texture; - struct { - GLfloat color[4]; - } constant; - struct { - cairo_gl_gradient_t *gradient; - cairo_matrix_t m; - cairo_circle_double_t circle_d; - double radius_0, a; - cairo_extend_t extend; - int texgen; - } gradient; - }; - unsigned int vertex_offset; -} cairo_gl_operand_t; - -typedef struct cairo_gl_source { - cairo_surface_t base; - cairo_gl_operand_t operand; -} cairo_gl_source_t; - -struct _cairo_gl_surface { - cairo_surface_t base; - cairo_gl_operand_t operand; - - int width, height; - - GLuint tex; /* GL texture object containing our data. */ - GLuint fb; /* GL framebuffer object wrapping our data. */ - GLuint depth_stencil; /* GL renderbuffer object for holding stencil buffer clip. */ - -#if CAIRO_HAS_GL_SURFACE || CAIRO_HAS_GLESV3_SURFACE - GLuint msaa_rb; /* The ARB MSAA path uses a renderbuffer. */ - GLuint msaa_fb; -#endif - GLuint msaa_depth_stencil; - - cairo_bool_t stencil_and_msaa_caps_initialized; - cairo_bool_t supports_stencil; /* Stencil support for for non-texture surfaces. */ - cairo_bool_t supports_msaa; - GLint num_samples; - cairo_bool_t msaa_active; /* Whether the multisampling - framebuffer is active or not. */ - cairo_bool_t content_in_texture; /* whether we just uploaded image - to texture, used for certain - gles2 extensions and glesv3 */ - cairo_clip_t *clip_on_stencil_buffer; - - int owns_tex; - cairo_bool_t needs_update; - - cairo_region_t *clip_region; -}; - -typedef struct cairo_gl_glyph_cache { - cairo_rtree_t rtree; - cairo_gl_surface_t *surface; -} cairo_gl_glyph_cache_t; - -typedef enum cairo_gl_tex { - CAIRO_GL_TEX_SOURCE = 0, - CAIRO_GL_TEX_MASK = 1, - CAIRO_GL_TEX_TEMP = 2 -} cairo_gl_tex_t; - -typedef struct cairo_gl_shader { - GLuint fragment_shader; - GLuint program; - GLint mvp_location; - GLint constant_location[2]; - GLint a_location[2]; - GLint circle_d_location[2]; - GLint radius_0_location[2]; - GLint texdims_location[2]; - GLint texgen_location[2]; -} cairo_gl_shader_t; - -typedef enum cairo_gl_shader_in { - CAIRO_GL_SHADER_IN_NORMAL, - CAIRO_GL_SHADER_IN_CA_SOURCE, - CAIRO_GL_SHADER_IN_CA_SOURCE_ALPHA, - - CAIRO_GL_SHADER_IN_COUNT -} cairo_gl_shader_in_t; - -typedef enum cairo_gl_var_type { - CAIRO_GL_VAR_NONE, - CAIRO_GL_VAR_TEXCOORDS, - CAIRO_GL_VAR_TEXGEN, -} cairo_gl_var_type_t; - -typedef enum cairo_gl_primitive_type { - CAIRO_GL_PRIMITIVE_TYPE_TRIANGLES, - CAIRO_GL_PRIMITIVE_TYPE_TRISTRIPS -} cairo_gl_primitive_type_t; - -typedef void (*cairo_gl_emit_rect_t) (cairo_gl_context_t *ctx, - GLfloat x1, GLfloat y1, - GLfloat x2, GLfloat y2); - -typedef void (*cairo_gl_emit_span_t) (cairo_gl_context_t *ctx, - GLfloat x1, GLfloat y1, - GLfloat x2, GLfloat y2, - uint8_t alpha); - -typedef void (*cairo_gl_emit_glyph_t) (cairo_gl_context_t *ctx, - GLfloat x1, GLfloat y1, - GLfloat x2, GLfloat y2, - GLfloat glyph_x1, GLfloat glyph_y1, - GLfloat glyph_x2, GLfloat glyph_y2); - -#define cairo_gl_var_type_hash(src,mask,spans,dest) ((spans) << 5) | ((mask) << 3 | (src << 1) | (dest)) -#define CAIRO_GL_VAR_TYPE_MAX (1 << 6) - -typedef void (*cairo_gl_generic_func_t)(void); -typedef cairo_gl_generic_func_t (*cairo_gl_get_proc_addr_func_t)(const char *procname); - -typedef struct _cairo_gl_dispatch { - /* Buffers */ - void (*GenBuffers) (GLsizei n, GLuint *buffers); - void (*BindBuffer) (GLenum target, GLuint buffer); - void (*BufferData) (GLenum target, GLsizeiptr size, - const GLvoid* data, GLenum usage); - GLvoid *(*MapBuffer) (GLenum target, GLenum access); - GLboolean (*UnmapBuffer) (GLenum target); - - /* Shaders */ - GLuint (*CreateShader) (GLenum type); - void (*ShaderSource) (GLuint shader, GLsizei count, - const GLchar** string, const GLint* length); - void (*CompileShader) (GLuint shader); - void (*GetShaderiv) (GLuint shader, GLenum pname, GLint *params); - void (*GetShaderInfoLog) (GLuint shader, GLsizei bufSize, - GLsizei *length, GLchar *infoLog); - void (*DeleteShader) (GLuint shader); - - /* Programs */ - GLuint (*CreateProgram) (void); - void (*AttachShader) (GLuint program, GLuint shader); - void (*DeleteProgram) (GLuint program); - void (*LinkProgram) (GLuint program); - void (*UseProgram) (GLuint program); - void (*GetProgramiv) (GLuint program, GLenum pname, GLint *params); - void (*GetProgramInfoLog) (GLuint program, GLsizei bufSize, - GLsizei *length, GLchar *infoLog); - - /* Uniforms */ - GLint (*GetUniformLocation) (GLuint program, const GLchar* name); - void (*Uniform1f) (GLint location, GLfloat x); - void (*Uniform2f) (GLint location, GLfloat x, GLfloat y); - void (*Uniform3f) (GLint location, GLfloat x, GLfloat y, GLfloat z); - void (*Uniform4f) (GLint location, GLfloat x, GLfloat y, GLfloat z, - GLfloat w); - void (*UniformMatrix3fv) (GLint location, GLsizei count, - GLboolean transpose, const GLfloat *value); - void (*UniformMatrix4fv) (GLint location, GLsizei count, - GLboolean transpose, const GLfloat *value); - void (*Uniform1i) (GLint location, GLint x); - - /* Attributes */ - void (*BindAttribLocation) (GLuint program, GLuint index, - const GLchar *name); - void (*VertexAttribPointer) (GLuint index, GLint size, GLenum type, - GLboolean normalized, GLsizei stride, - const GLvoid *pointer); - void (*EnableVertexAttribArray) (GLuint index); - void (*DisableVertexAttribArray) (GLuint index); - - /* Framebuffer objects */ - void (*GenFramebuffers) (GLsizei n, GLuint* framebuffers); - void (*BindFramebuffer) (GLenum target, GLuint framebuffer); - void (*FramebufferTexture2D) (GLenum target, GLenum attachment, - GLenum textarget, GLuint texture, - GLint level); - GLenum (*CheckFramebufferStatus) (GLenum target); - void (*DeleteFramebuffers) (GLsizei n, const GLuint* framebuffers); - void (*GenRenderbuffers) (GLsizei n, GLuint *renderbuffers); - void (*BindRenderbuffer) (GLenum target, GLuint renderbuffer); - void (*RenderbufferStorage) (GLenum target, GLenum internal_format, - GLsizei width, GLsizei height); - void (*FramebufferRenderbuffer) (GLenum target, GLenum attachment, - GLenum renderbuffer_ttarget, GLuint renderbuffer); - void (*DeleteRenderbuffers) (GLsizei n, GLuint *renderbuffers); - void (*BlitFramebuffer) (GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, - GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, - GLbitfield mask, GLenum filter); - void (*RenderbufferStorageMultisample) (GLenum target, GLsizei samples, - GLenum internalformat, - GLsizei width, GLsizei height); - void (*FramebufferTexture2DMultisample) (GLenum target, GLenum attachment, - GLenum textarget, GLuint texture, - GLint level, GLsizei samples); -} cairo_gl_dispatch_t; - -struct _cairo_gl_context { - cairo_device_t base; - - const cairo_compositor_t *compositor; - - GLuint texture_load_pbo; - GLint max_framebuffer_size; - GLint max_texture_size; - GLint max_textures; - GLenum tex_target; - - GLint num_samples; - cairo_bool_t supports_msaa; - char *vb; - - cairo_bool_t has_shader_support; - - GLuint vertex_shaders[CAIRO_GL_VAR_TYPE_MAX]; - cairo_gl_shader_t fill_rectangles_shader; - cairo_cache_t shaders; - - cairo_cache_t gradients; - - cairo_gl_glyph_cache_t glyph_cache[2]; - cairo_list_t fonts; - - cairo_gl_surface_t *current_target; - cairo_operator_t current_operator; - cairo_gl_shader_t *pre_shader; /* for component alpha */ - cairo_gl_shader_t *current_shader; - - cairo_gl_operand_t operands[2]; - cairo_bool_t spans; - - unsigned int vbo_size; - unsigned int vb_offset; - unsigned int vertex_size; - cairo_region_t *clip_region; - cairo_clip_t *clip; - - cairo_gl_primitive_type_t primitive_type; - cairo_array_t tristrip_indices; - - cairo_bool_t has_mesa_pack_invert; - cairo_gl_dispatch_t dispatch; - GLfloat modelviewprojection_matrix[16]; - cairo_gl_flavor_t gl_flavor; - cairo_bool_t has_map_buffer; - cairo_bool_t has_packed_depth_stencil; - cairo_bool_t has_npot_repeat; - cairo_bool_t can_read_bgra; - - cairo_bool_t thread_aware; - - void (*acquire) (void *ctx); - void (*release) (void *ctx); - - void (*make_current) (void *ctx, cairo_gl_surface_t *surface); - void (*swap_buffers)(void *ctx, cairo_gl_surface_t *surface); - void (*destroy) (void *ctx); -}; - -typedef struct _cairo_gl_composite { - cairo_gl_surface_t *dst; - cairo_operator_t op; - cairo_region_t *clip_region; - - cairo_gl_operand_t src; - cairo_gl_operand_t mask; - cairo_bool_t spans; - - cairo_clip_t *clip; - cairo_bool_t multisample; -} cairo_gl_composite_t; - -typedef struct _cairo_gl_font { - cairo_scaled_font_private_t base; - cairo_device_t *device; - cairo_list_t link; -} cairo_gl_font_t; - -static cairo_always_inline GLenum -_cairo_gl_get_error (void) -{ - GLenum err = glGetError(); - - if (unlikely (err)) - while (glGetError ()); - - return err; -} - -static inline cairo_device_t * -_cairo_gl_context_create_in_error (cairo_status_t status) -{ - return (cairo_device_t *) _cairo_device_create_in_error (status); -} - -cairo_private cairo_status_t -_cairo_gl_context_init (cairo_gl_context_t *ctx); - -cairo_private void -_cairo_gl_surface_init (cairo_device_t *device, - cairo_gl_surface_t *surface, - cairo_content_t content, - int width, int height); - -static cairo_always_inline cairo_bool_t cairo_warn -_cairo_gl_surface_is_texture (cairo_gl_surface_t *surface) -{ - return surface->tex != 0; -} - -cairo_private cairo_status_t -_cairo_gl_surface_draw_image (cairo_gl_surface_t *dst, - cairo_image_surface_t *src, - int src_x, int src_y, - int width, int height, - int dst_x, int dst_y, - cairo_bool_t force_flush); - -cairo_private cairo_int_status_t -_cairo_gl_surface_resolve_multisampling (cairo_gl_surface_t *surface); - -static cairo_always_inline cairo_bool_t -_cairo_gl_device_has_glsl (cairo_device_t *device) -{ - return ((cairo_gl_context_t *) device)->has_shader_support; -} - -static cairo_always_inline cairo_bool_t -_cairo_gl_device_requires_power_of_two_textures (cairo_device_t *device) -{ - return ((cairo_gl_context_t *) device)->tex_target == GL_TEXTURE_RECTANGLE; -} - -static cairo_always_inline cairo_status_t cairo_warn -_cairo_gl_context_acquire (cairo_device_t *device, - cairo_gl_context_t **ctx) -{ - cairo_status_t status; - - status = cairo_device_acquire (device); - if (unlikely (status)) - return status; - - /* clear potential previous GL errors */ - _cairo_gl_get_error (); - - *ctx = (cairo_gl_context_t *) device; - return CAIRO_STATUS_SUCCESS; -} - -static cairo_always_inline cairo_warn cairo_status_t -_cairo_gl_context_release (cairo_gl_context_t *ctx, cairo_status_t status) -{ - GLenum err; - - err = _cairo_gl_get_error (); - - if (unlikely (err)) { - cairo_status_t new_status; - new_status = _cairo_error (CAIRO_STATUS_DEVICE_ERROR); - if (status == CAIRO_STATUS_SUCCESS) - status = new_status; - } - - cairo_device_release (&(ctx)->base); - - return status; -} - -cairo_private void -_cairo_gl_context_set_destination (cairo_gl_context_t *ctx, - cairo_gl_surface_t *surface, - cairo_bool_t multisampling); - -cairo_private void -_cairo_gl_context_bind_framebuffer (cairo_gl_context_t *ctx, - cairo_gl_surface_t *surface, - cairo_bool_t multisampling); - -cairo_private cairo_gl_emit_rect_t -_cairo_gl_context_choose_emit_rect (cairo_gl_context_t *ctx); - -cairo_private void -_cairo_gl_context_emit_rect (cairo_gl_context_t *ctx, - GLfloat x1, GLfloat y1, - GLfloat x2, GLfloat y2); - -cairo_private cairo_gl_emit_span_t -_cairo_gl_context_choose_emit_span (cairo_gl_context_t *ctx); - -cairo_private cairo_gl_emit_glyph_t -_cairo_gl_context_choose_emit_glyph (cairo_gl_context_t *ctx); - -cairo_private void -_cairo_gl_context_activate (cairo_gl_context_t *ctx, - cairo_gl_tex_t tex_unit); - -cairo_private cairo_bool_t -_cairo_gl_operator_is_supported (cairo_operator_t op); - -cairo_private cairo_bool_t -_cairo_gl_ensure_stencil (cairo_gl_context_t *ctx, - cairo_gl_surface_t *surface); - -cairo_private cairo_status_t -_cairo_gl_composite_init (cairo_gl_composite_t *setup, - cairo_operator_t op, - cairo_gl_surface_t *dst, - cairo_bool_t has_component_alpha); - -cairo_private void -_cairo_gl_composite_fini (cairo_gl_composite_t *setup); - -cairo_private cairo_status_t -_cairo_gl_composite_set_operator (cairo_gl_composite_t *setup, - cairo_operator_t op, - cairo_bool_t assume_component_alpha); - -cairo_private void -_cairo_gl_composite_set_clip_region (cairo_gl_composite_t *setup, - cairo_region_t *clip_region); - -cairo_private void -_cairo_gl_composite_set_clip(cairo_gl_composite_t *setup, - cairo_clip_t *clip); - -cairo_private cairo_int_status_t -_cairo_gl_composite_set_source (cairo_gl_composite_t *setup, - const cairo_pattern_t *pattern, - const cairo_rectangle_int_t *sample, - const cairo_rectangle_int_t *extents, - cairo_bool_t use_texgen); - -cairo_private void -_cairo_gl_composite_set_solid_source (cairo_gl_composite_t *setup, - const cairo_color_t *color); - -cairo_private void -_cairo_gl_composite_set_source_operand (cairo_gl_composite_t *setup, - const cairo_gl_operand_t *source); - -cairo_private cairo_int_status_t -_cairo_gl_composite_set_mask (cairo_gl_composite_t *setup, - const cairo_pattern_t *pattern, - const cairo_rectangle_int_t *sample, - const cairo_rectangle_int_t *extents, - cairo_bool_t use_texgen); - -cairo_private void -_cairo_gl_composite_set_mask_operand (cairo_gl_composite_t *setup, - const cairo_gl_operand_t *mask); - -cairo_private void -_cairo_gl_composite_set_spans (cairo_gl_composite_t *setup); - -cairo_private void -_cairo_gl_composite_set_multisample (cairo_gl_composite_t *setup); - -cairo_private cairo_status_t -_cairo_gl_composite_begin (cairo_gl_composite_t *setup, - cairo_gl_context_t **ctx); - -cairo_private cairo_status_t -_cairo_gl_set_operands_and_operator (cairo_gl_composite_t *setup, - cairo_gl_context_t *ctx); - -cairo_private void -_cairo_gl_composite_flush (cairo_gl_context_t *ctx); - -cairo_private cairo_int_status_t -_cairo_gl_composite_emit_quad_as_tristrip (cairo_gl_context_t *ctx, - cairo_gl_composite_t *setup, - const cairo_point_t quad[4]); - -cairo_private cairo_int_status_t -_cairo_gl_composite_emit_triangle_as_tristrip (cairo_gl_context_t *ctx, - cairo_gl_composite_t *setup, - const cairo_point_t triangle[3]); - -cairo_private void -_cairo_gl_context_destroy_operand (cairo_gl_context_t *ctx, - cairo_gl_tex_t tex_unit); - -cairo_private cairo_bool_t -_cairo_gl_get_image_format_and_type (cairo_gl_flavor_t flavor, - pixman_format_code_t pixman_format, - GLenum *internal_format, GLenum *format, - GLenum *type, cairo_bool_t *has_alpha, - cairo_bool_t *needs_swap); - -cairo_private void -_cairo_gl_glyph_cache_init (cairo_gl_glyph_cache_t *cache); - -cairo_private void -_cairo_gl_glyph_cache_fini (cairo_gl_context_t *ctx, - cairo_gl_glyph_cache_t *cache); - -cairo_private cairo_int_status_t -_cairo_gl_surface_show_glyphs (void *abstract_dst, - cairo_operator_t op, - const cairo_pattern_t *source, - cairo_glyph_t *glyphs, - int num_glyphs, - cairo_scaled_font_t *scaled_font, - const cairo_clip_t *clip, - int *remaining_glyphs); - -cairo_private cairo_status_t -_cairo_gl_context_init_shaders (cairo_gl_context_t *ctx); - -cairo_private void -_cairo_gl_context_fini_shaders (cairo_gl_context_t *ctx); - -static cairo_always_inline cairo_bool_t -_cairo_gl_context_is_flushed (cairo_gl_context_t *ctx) -{ - return ctx->vb_offset == 0; -} - -cairo_private cairo_status_t -_cairo_gl_get_shader_by_type (cairo_gl_context_t *ctx, - cairo_gl_operand_t *source, - cairo_gl_operand_t *mask, - cairo_bool_t use_coverage, - cairo_gl_shader_in_t in, - cairo_gl_shader_t **shader); - -cairo_private void -_cairo_gl_shader_bind_float (cairo_gl_context_t *ctx, - GLint location, - float value); - -cairo_private void -_cairo_gl_shader_bind_vec2 (cairo_gl_context_t *ctx, - GLint location, - float value0, float value1); - -cairo_private void -_cairo_gl_shader_bind_vec3 (cairo_gl_context_t *ctx, - GLint location, - float value0, - float value1, - float value2); - -cairo_private void -_cairo_gl_shader_bind_vec4 (cairo_gl_context_t *ctx, - GLint location, - float value0, float value1, - float value2, float value3); - -cairo_private void -_cairo_gl_shader_bind_matrix (cairo_gl_context_t *ctx, - GLint location, - const cairo_matrix_t* m); - -cairo_private void -_cairo_gl_shader_bind_matrix4f (cairo_gl_context_t *ctx, - GLint location, - GLfloat* gl_m); - -cairo_private void -_cairo_gl_set_shader (cairo_gl_context_t *ctx, - cairo_gl_shader_t *shader); - -cairo_private void -_cairo_gl_shader_fini (cairo_gl_context_t *ctx, cairo_gl_shader_t *shader); - -cairo_private int -_cairo_gl_get_version (void); - -cairo_private cairo_gl_flavor_t -_cairo_gl_get_flavor (void); - -cairo_private unsigned long -_cairo_gl_get_vbo_size (void); - -cairo_private cairo_bool_t -_cairo_gl_has_extension (const char *ext); - -cairo_private cairo_status_t -_cairo_gl_dispatch_init(cairo_gl_dispatch_t *dispatch, - cairo_gl_get_proc_addr_func_t get_proc_addr); - -cairo_private cairo_int_status_t -_cairo_gl_operand_init (cairo_gl_operand_t *operand, - const cairo_pattern_t *pattern, - cairo_gl_surface_t *dst, - const cairo_rectangle_int_t *sample, - const cairo_rectangle_int_t *extents, - cairo_bool_t use_texgen); - -cairo_private void -_cairo_gl_solid_operand_init (cairo_gl_operand_t *operand, - const cairo_color_t *color); - -cairo_private cairo_filter_t -_cairo_gl_operand_get_filter (cairo_gl_operand_t *operand); - -cairo_private GLint -_cairo_gl_operand_get_gl_filter (cairo_gl_operand_t *operand); - -cairo_private cairo_extend_t -_cairo_gl_operand_get_extend (cairo_gl_operand_t *operand); - -cairo_private unsigned int -_cairo_gl_operand_get_vertex_size (const cairo_gl_operand_t *operand); - -cairo_private cairo_bool_t -_cairo_gl_operand_needs_setup (cairo_gl_operand_t *dest, - cairo_gl_operand_t *source, - unsigned int vertex_offset); - -cairo_private void -_cairo_gl_operand_bind_to_shader (cairo_gl_context_t *ctx, - cairo_gl_operand_t *operand, - cairo_gl_tex_t tex_unit); - -cairo_private void -_cairo_gl_operand_emit (cairo_gl_operand_t *operand, - GLfloat ** vb, - GLfloat x, - GLfloat y); - -cairo_private void -_cairo_gl_operand_copy (cairo_gl_operand_t *dst, - const cairo_gl_operand_t *src); - -cairo_private void -_cairo_gl_operand_translate (cairo_gl_operand_t *operand, - double tx, double ty); - -cairo_private void -_cairo_gl_operand_destroy (cairo_gl_operand_t *operand); - -cairo_private const cairo_compositor_t * -_cairo_gl_msaa_compositor_get (void); - -cairo_private const cairo_compositor_t * -_cairo_gl_span_compositor_get (void); - -cairo_private const cairo_compositor_t * -_cairo_gl_traps_compositor_get (void); - -cairo_private cairo_int_status_t -_cairo_gl_check_composite_glyphs (const cairo_composite_rectangles_t *extents, - cairo_scaled_font_t *scaled_font, - cairo_glyph_t *glyphs, - int *num_glyphs); - -cairo_private cairo_int_status_t -_cairo_gl_composite_glyphs (void *_dst, - cairo_operator_t op, - cairo_surface_t *_src, - int src_x, - int src_y, - int dst_x, - int dst_y, - cairo_composite_glyphs_info_t *info); - -cairo_private cairo_int_status_t -_cairo_gl_composite_glyphs_with_clip (void *_dst, - cairo_operator_t op, - cairo_surface_t *_src, - int src_x, - int src_y, - int dst_x, - int dst_y, - cairo_composite_glyphs_info_t *info, - cairo_clip_t *clip); - -cairo_private void -_cairo_gl_ensure_framebuffer (cairo_gl_context_t *ctx, - cairo_gl_surface_t *surface); - -cairo_private cairo_surface_t * -_cairo_gl_surface_create_scratch (cairo_gl_context_t *ctx, - cairo_content_t content, - int width, - int height); - -cairo_private cairo_surface_t * -_cairo_gl_surface_create_scratch_for_caching (cairo_gl_context_t *ctx, - cairo_content_t content, - int width, - int height); - -cairo_private cairo_surface_t * -_cairo_gl_pattern_to_source (cairo_surface_t *dst, - const cairo_pattern_t *pattern, - cairo_bool_t is_mask, - const cairo_rectangle_int_t *extents, - const cairo_rectangle_int_t *sample, - int *src_x, int *src_y); - -cairo_private cairo_int_status_t -_cairo_gl_msaa_compositor_draw_clip (cairo_gl_context_t *ctx, - cairo_gl_composite_t *setup, - cairo_clip_t *clip); - -cairo_private cairo_surface_t * -_cairo_gl_white_source (void); - -cairo_private void -_cairo_gl_scissor_to_rectangle (cairo_gl_surface_t *surface, - const cairo_rectangle_int_t *r); - -static inline cairo_gl_operand_t * -source_to_operand (cairo_surface_t *surface) -{ - cairo_gl_source_t *source = (cairo_gl_source_t *)surface; - return source ? &source->operand : NULL; -} - -static inline void -_cairo_gl_glyph_cache_unlock (cairo_gl_glyph_cache_t *cache) -{ - _cairo_rtree_unpin (&cache->rtree); -} - - -slim_hidden_proto (cairo_gl_surface_create); -slim_hidden_proto (cairo_gl_surface_create_for_texture); - -#endif /* CAIRO_GL_PRIVATE_H */ |