eed2479556
The indirection through this API isn't necessary since we no longer arbitrate between the OpenGL matrix API and Cogl's client side API. Also it doesn't help to maintain an OpenGL style matrix mode API for internal use since it's awkward to keep restoring the MODELVIEW mode and easy enough to directly work with the matrix stacks of interest. This replaces use of the _cogl_current_matrix API with direct use of the _cogl_matrix_stack API. All the unused cogl_current_matrix API is removed and the matrix utility code left in cogl-current-matrix.c was moved to cogl.c.
135 lines
3.6 KiB
C
135 lines
3.6 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2007,2008,2009 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __COGL_CONTEXT_H
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#define __COGL_CONTEXT_H
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#include "cogl-internal.h"
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#include "cogl-context-driver.h"
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#include "cogl-primitives.h"
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#include "cogl-clip-stack.h"
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#include "cogl-matrix-stack.h"
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#include "cogl-material-private.h"
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typedef struct
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{
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GLfloat v[3];
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GLfloat t[2];
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GLubyte c[4];
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} CoglTextureGLVertex;
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typedef struct
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{
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CoglBufferTarget target;
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CoglHandle offscreen;
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} CoglDrawBufferState;
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typedef struct
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{
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/* Features cache */
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CoglFeatureFlags feature_flags;
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gboolean features_cached;
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/* Enable cache */
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gulong enable_flags;
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guint8 color_alpha;
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gboolean enable_backface_culling;
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gboolean indirect;
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/* Client-side matrix stack or NULL if none */
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CoglMatrixMode flushed_matrix_mode;
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CoglMatrixStack *projection_stack;
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CoglMatrixStack *modelview_stack;
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GList *texture_units;
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/* Cache of inverse projection matrix */
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float inverse_projection[16];
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/* Materials */
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CoglHandle default_material;
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CoglHandle source_material;
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/* Textures */
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CoglHandle default_gl_texture_2d_tex;
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CoglHandle default_gl_texture_rect_tex;
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/* Batching geometry... */
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/* We journal the texture rectangles we want to submit to OpenGL so
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* we have an oppertunity to optimise the final order so that we
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* can batch things together. */
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GArray *journal;
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GArray *logged_vertices;
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GArray *polygon_vertices;
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/* Some simple caching, to minimize state changes... */
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CoglHandle current_material;
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gulong current_material_flags;
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CoglMaterialFlushOptions current_material_flush_options;
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GArray *current_layers;
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guint n_texcoord_arrays_enabled;
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/* Framebuffer objects */
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GSList *draw_buffer_stack;
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/* Clip stack */
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CoglClipStackState clip;
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/* Primitives */
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floatVec2 path_start;
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floatVec2 path_pen;
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GArray *path_nodes;
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guint last_path;
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floatVec2 path_nodes_min;
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floatVec2 path_nodes_max;
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CoglHandle stencil_material;
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/* Pre-generated VBOs containing indices to generate GL_TRIANGLES
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out of a vertex array of quads */
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CoglHandle quad_indices_byte;
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guint quad_indices_short_len;
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CoglHandle quad_indices_short;
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gboolean in_begin_gl_block;
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guint viewport_width;
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guint viewport_height;
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CoglHandle texture_download_material;
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CoglContextDriver drv;
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} CoglContext;
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CoglContext *
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_cogl_context_get_default ();
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/* Obtains the context and returns retval if NULL */
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#define _COGL_GET_CONTEXT(ctxvar, retval) \
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CoglContext *ctxvar = _cogl_context_get_default (); \
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if (ctxvar == NULL) return retval;
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#define NO_RETVAL
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#endif /* __COGL_CONTEXT_H */
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