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-rw-r--r--[-rwxr-xr-x]src/cairo-gl-private.h126
1 files changed, 105 insertions, 21 deletions
diff --git a/src/cairo-gl-private.h b/src/cairo-gl-private.h
index c46a3e8cc..ad08abd9f 100755..100644
--- a/src/cairo-gl-private.h
+++ b/src/cairo-gl-private.h
@@ -4,6 +4,7 @@
* Copyright © 2009 Chris Wilson
* Copyright © 2005,2010 Red Hat, Inc
* Copyright © 2011 Linaro Limited
+ * Copyright © 2011,2015 Samsung Research America, Inc - Silicon Valley
*
* This library is free software; you can redistribute it and/or
* modify it either under the terms of the GNU Lesser General Public
@@ -39,6 +40,7 @@
* Eric Anholt <eric@anholt.net>
* T. Zachary Laine <whatwasthataddress@gmail.com>
* Alexandros Frantzis <alexandros.frantzis@linaro.org>
+ * Henry Song <hsong@sisa.samsung.com>
*/
#ifndef CAIRO_GL_PRIVATE_H
@@ -62,11 +64,16 @@
#include <assert.h>
#if CAIRO_HAS_EVASGL_SURFACE
-#include <Evas_GL.h>
+ #include <Evas_GL.h>
#else
#if CAIRO_HAS_GL_SURFACE
+ #if CAIRO_HAS_CGL_FUNCTIONS
+ #include <OpenGL/gl.h>
+ #include <OpenGL/glext.h>
+ #else
#include <GL/gl.h>
#include <GL/glext.h>
+ #endif
#elif CAIRO_HAS_GLESV2_SURFACE
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
@@ -76,7 +83,6 @@
#endif
#endif
-
#include "cairo-gl-ext-def-private.h"
#define DEBUG_GL 0
@@ -104,8 +110,9 @@
/* 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). */
-#define CAIRO_GL_VBO_SIZE (16*1024)
+ * (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)
#define MIN_IMAGE_CACHE_WIDTH 512
#define MIN_IMAGE_CACHE_HEIGHT 512
@@ -142,7 +149,7 @@ typedef enum cairo_gl_flavor {
CAIRO_GL_FLAVOR_ES3 = 3
} cairo_gl_flavor_t;
-/* The order here is sensitive because of the logic of
+/* The order here is sensitive because of the logic of
*_cairo_gl_shader_uniform_for_texunit. */
typedef enum cairo_gl_uniform_t {
CAIRO_GL_UNIFORM_TEXDIMS, /* "source_texdims" */
@@ -310,7 +317,19 @@ typedef enum cairo_gl_tex {
typedef struct cairo_gl_shader {
GLuint fragment_shader;
GLuint program;
- GLint uniforms[CAIRO_GL_UNIFORM_MAX];
+ 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];
+ GLint blur_radius_location[2];
+ GLint blurs_location[2];
+ GLint blur_step_location[2];
+ GLint blur_x_axis_location[2];
+ GLint blur_y_axis_location[2];
+ GLint alpha_location[2];
} cairo_gl_shader_t;
typedef struct _cairo_gl_image_cache {
@@ -406,7 +425,7 @@ typedef struct _cairo_gl_dispatch {
void (*ClearStencil) (GLint s);
void (*ColorMask) (GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
void (*DeleteTextures) (GLsizei n, const GLuint *textures);
- void (*DepthMask)(GLboolean flag);
+ void (*DepthMask) (GLboolean flag);
void (*Disable) (GLenum cap);
void (*DrawArrays) (GLenum mode, GLint first, GLsizei count);
void (*DrawElements) (GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
@@ -418,6 +437,7 @@ typedef struct _cairo_gl_dispatch {
void (*GetFloatv) (GLenum pname, GLfloat *data);
void (*GetIntegerv) (GLenum pname, GLint *data);
const GLubyte *(*GetString) (GLenum pname);
+ const GLubyte *(*GetStringi) (GLenum pname, GLuint i);
void (*PixelStorei) (GLenum pname, GLint param);
void (*ReadPixels) (GLint x, GLint y, GLsizei width, GLsizei height,
GLenum format, GLenum type, GLvoid *data);
@@ -442,11 +462,17 @@ typedef struct _cairo_gl_dispatch {
/* Buffers */
void (*GenBuffers) (GLsizei n, GLuint *buffers);
+ void (*DeleteBuffers) (GLsizei n, const GLuint *buffers);
void (*BindBuffer) (GLenum target, GLuint buffer);
void (*BufferData) (GLenum target, GLsizeiptr size,
const GLvoid* data, GLenum usage);
+ void (*BufferSubData) (GLenum target, GLintptr offset,
+ GLsizeiptr size, const GLvoid *data);
GLvoid *(*MapBuffer) (GLenum target, GLenum access);
GLboolean (*UnmapBuffer) (GLenum target);
+ void (*GenVertexArrays) (GLsizei n, GLuint *arrays);
+ void (*BindVertexArray) (GLuint array);
+ void (*DeleteVertexArrays) (GLsizei n, const GLuint *arrays);
/* Shaders */
GLuint (*CreateShader) (GLenum type);
@@ -540,6 +566,9 @@ typedef struct _cairo_gl_states {
cairo_bool_t scissor_test_enabled;
cairo_bool_t stencil_test_enabled;
+ GLuint bound_vbo;
+ GLuint bound_vao;
+ GLuint bound_ibo;
} cairo_gl_states_t;
struct _cairo_gl_context {
@@ -547,7 +576,6 @@ struct _cairo_gl_context {
const cairo_compositor_t *compositor;
- GLuint texture_load_pbo;
GLint max_framebuffer_size;
GLint max_texture_size;
GLint max_textures;
@@ -556,6 +584,9 @@ struct _cairo_gl_context {
GLint num_samples;
cairo_bool_t supports_msaa;
char *vb;
+ GLuint vbo;
+ GLuint vao;
+ GLuint ibo;
cairo_bool_t has_shader_support;
@@ -565,9 +596,9 @@ struct _cairo_gl_context {
cairo_cache_t gradients;
- /* cache[0] for gray font, cache[1] for rgba component alpha
- * cache[2] for color glyph */
- cairo_gl_glyph_cache_t glyph_cache[3];
+ /* cache[0] for gray font, cache[1] for rgba component alpha
+ * cache[2] for color glyph */
+ cairo_gl_glyph_cache_t glyph_cache[3];
cairo_list_t fonts;
cairo_gl_surface_t *current_target;
@@ -578,6 +609,7 @@ struct _cairo_gl_context {
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;
@@ -593,6 +625,7 @@ struct _cairo_gl_context {
cairo_bool_t has_packed_depth_stencil;
cairo_bool_t has_npot_repeat;
cairo_bool_t can_read_bgra;
+ cairo_bool_t is_gl33;
cairo_bool_t thread_aware;
@@ -755,7 +788,7 @@ _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,
- const cairo_bool_t is_color_glyph);
+ const cairo_bool_t is_color_glyph);
cairo_private void
_cairo_gl_context_activate (cairo_gl_context_t *ctx,
@@ -804,6 +837,45 @@ _enable_scissor_buffer (cairo_gl_context_t *ctx)
}
}
+static cairo_always_inline void
+_cairo_gl_ensure_drawbuffers (cairo_gl_context_t *ctx)
+{
+ GLint vbo, ibo, vao;
+
+ if ((ctx->vao != 0 &&
+ (ctx->vao != ctx->states_cache.bound_vao))) {
+ ctx->dispatch.GetIntegerv (GL_VERTEX_ARRAY_BINDING, &vao);
+ if (vao != ctx->states_cache.bound_vao) {
+ ctx->dispatch.BindVertexArray (ctx->vao);
+ ctx->states_cache.bound_vao = ctx->vao;
+
+ ctx->dispatch.BindBuffer (GL_ARRAY_BUFFER, ctx->vbo);
+ ctx->states_cache.bound_vbo = ctx->vbo;
+
+ ctx->dispatch.BindBuffer (GL_ELEMENT_ARRAY_BUFFER, ctx->ibo);
+ ctx->states_cache.bound_ibo = ctx->ibo;
+ }
+ }
+
+ if ((ctx->vbo != 0 &&
+ (ctx->vbo != ctx->states_cache.bound_vbo))) {
+ ctx->dispatch.GetIntegerv (GL_ARRAY_BUFFER_BINDING, &vbo);
+ if (vbo != (GLint) ctx->states_cache.bound_vbo) {
+ ctx->dispatch.BindBuffer (GL_ARRAY_BUFFER, ctx->vbo);
+ }
+ ctx->states_cache.bound_vbo = ctx->vbo;
+ }
+
+ if ((ctx->ibo != 0 &&
+ (ctx->ibo != ctx->states_cache.bound_ibo))) {
+ ctx->dispatch.GetIntegerv (GL_ELEMENT_ARRAY_BUFFER_BINDING, &ibo);
+ if (ibo != (GLint) ctx->states_cache.bound_ibo) {
+ ctx->dispatch.BindBuffer (GL_ELEMENT_ARRAY_BUFFER, ctx->ibo);
+ }
+ ctx->states_cache.bound_ibo = ctx->ibo;
+ }
+}
+
cairo_private cairo_status_t
_cairo_gl_composite_init (cairo_gl_composite_t *setup,
cairo_operator_t op,
@@ -886,6 +958,12 @@ _cairo_gl_composite_emit_triangle_as_tristrip (cairo_gl_context_t *ctx,
const cairo_point_t triangle[3]);
cairo_private cairo_int_status_t
+_cairo_gl_composite_emit_triangle_fan (cairo_gl_context_t *ctx,
+ cairo_gl_composite_t *setup,
+ const cairo_point_t *fan,
+ int count);
+
+cairo_private cairo_int_status_t
_cairo_gl_composite_emit_point_as_tristrip_line (cairo_gl_context_t *ctx,
const cairo_point_t point[2],
cairo_bool_t start_point);
@@ -944,49 +1022,49 @@ _cairo_gl_get_shader_by_type (cairo_gl_context_t *ctx,
cairo_private cairo_gl_uniform_t
_cairo_gl_shader_uniform_for_texunit (cairo_gl_uniform_t uniform,
- cairo_gl_tex_t tex_unit);
+ cairo_gl_tex_t tex_unit);
cairo_private void
_cairo_gl_shader_bind_float (cairo_gl_context_t *ctx,
- cairo_gl_uniform_t uniform,
+ GLint location,
float value);
cairo_private void
_cairo_gl_shader_bind_float_array (cairo_gl_context_t *ctx,
- cairo_gl_uniform_t uniform,
+ GLint location,
int num, float *values);
cairo_private void
_cairo_gl_shader_bind_int (cairo_gl_context_t *ctx,
- cairo_gl_uniform_t uniform,
+ GLint location,
int value);
cairo_private void
_cairo_gl_shader_bind_vec2 (cairo_gl_context_t *ctx,
- cairo_gl_uniform_t uniform,
+ GLint location,
float value0, float value1);
cairo_private void
_cairo_gl_shader_bind_vec3 (cairo_gl_context_t *ctx,
- cairo_gl_uniform_t uniform,
+ GLint location,
float value0,
float value1,
float value2);
cairo_private void
_cairo_gl_shader_bind_vec4 (cairo_gl_context_t *ctx,
- cairo_gl_uniform_t uniform,
+ GLint location,
float value0, float value1,
float value2, float value3);
cairo_private void
_cairo_gl_shader_bind_matrix (cairo_gl_context_t *ctx,
- cairo_gl_uniform_t uniform,
+ GLint location,
const cairo_matrix_t* m);
cairo_private void
_cairo_gl_shader_bind_matrix4f (cairo_gl_context_t *ctx,
- cairo_gl_uniform_t uniform,
+ GLint location,
GLfloat* gl_m);
cairo_private void
@@ -999,9 +1077,15 @@ _cairo_gl_shader_fini (cairo_gl_context_t *ctx, cairo_gl_shader_t *shader);
cairo_private int
_cairo_gl_get_version (cairo_gl_dispatch_t *dispatch);
+cairo_private int
+_cairo_glsl_get_version (cairo_gl_dispatch_t *dispatch);
+
cairo_private cairo_gl_flavor_t
_cairo_gl_get_flavor (cairo_gl_dispatch_t *dispatch);
+cairo_private unsigned long
+_cairo_gl_get_vbo_size (void);
+
cairo_private cairo_bool_t
_cairo_gl_has_extension (cairo_gl_dispatch_t *dispatch, const char *ext);
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-12 06:19:29 +0000