diff options
Diffstat (limited to 'cogl/cogl/driver/gl/cogl-pipeline-opengl-private.h')
| -rw-r--r-- | cogl/cogl/driver/gl/cogl-pipeline-opengl-private.h | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/cogl/cogl/driver/gl/cogl-pipeline-opengl-private.h b/cogl/cogl/driver/gl/cogl-pipeline-opengl-private.h deleted file mode 100644 index 3626fd16c..000000000 --- a/cogl/cogl/driver/gl/cogl-pipeline-opengl-private.h +++ /dev/null @@ -1,172 +0,0 @@ -/* - * Cogl - * - * A Low Level GPU Graphics and Utilities API - * - * Copyright (C) 2010 Intel Corporation. - * - * Permission is hereby granted, free of charge, to any person - * obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, copy, - * modify, merge, publish, distribute, sublicense, and/or sell copies - * of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * - * - * Authors: - * Robert Bragg <robert@linux.intel.com> - */ - -#ifndef __COGL_PIPELINE_OPENGL_PRIVATE_H -#define __COGL_PIPELINE_OPENGL_PRIVATE_H - -#include "cogl-pipeline-private.h" -#include "cogl-matrix-stack.h" - -/* - * cogl-pipeline.c owns the GPU's texture unit state so we have some - * private structures for describing the current state of a texture - * unit that we track in a per context array (ctx->texture_units) that - * grows according to the largest texture unit used so far... - * - * Roughly speaking the members in this structure are of two kinds: - * either they are a low level reflection of the state we send to - * OpenGL or they are for high level meta data associated with the - * texture unit when flushing CoglPipelineLayers that is typically - * used to optimize subsequent re-flushing of the same layer. - * - * The low level members are at the top, and the high level members - * start with the .layer member. - */ -typedef struct _CoglTextureUnit -{ - /* The base 0 texture unit index which can be used with - * glActiveTexture () */ - int index; - - /* The GL target currently glEnabled or 0 if nothing is - * enabled. This is only used by the fixed pipeline fragend */ - GLenum enabled_gl_target; - - /* The raw GL texture object name for which we called glBindTexture when - * we flushed the last layer. (NB: The CoglTexture associated - * with a layer may represent more than one GL texture) */ - GLuint gl_texture; - /* The target of the GL texture object. This is just used so that we - * can quickly determine the intended target to flush when - * dirty_gl_texture == TRUE */ - GLenum gl_target; - - /* We have many components in Cogl that need to temporarily bind arbitrary - * textures e.g. to query texture object parameters and since we don't - * want that to result in too much redundant reflushing of layer state - * when all that's needed is to re-bind the layer's gl_texture we use this - * to track when the unit->gl_texture state is out of sync with the GL - * texture object really bound too (GL_TEXTURE0+unit->index). - * - * XXX: as a further optimization cogl-pipeline.c uses a convention - * of always using texture unit 1 for these transient bindings so we - * can assume this is only ever TRUE for unit 1. - */ - gboolean dirty_gl_texture; - - /* A matrix stack giving us the means to associate a texture - * transform matrix with the texture unit. */ - CoglMatrixStack *matrix_stack; - - /* - * Higher level layer state associated with the unit... - */ - - /* The CoglPipelineLayer whose state was flushed to update this - * texture unit last. - * - * This will be set to NULL if the layer is modified or freed which - * means when we come to flush a layer; if this pointer is still - * valid and == to the layer being flushed we don't need to update - * any texture unit state. */ - CoglPipelineLayer *layer; - - /* To help minimize the state changes required we track the - * difference flags associated with the layer whose state was last - * flushed to update this texture unit. - * - * Note: we track this explicitly because .layer may get invalidated - * if that layer is modified or deleted. Even if the layer is - * invalidated though these flags can be used to optimize the state - * flush of the next layer - */ - unsigned long layer_changes_since_flush; - - /* Whenever a CoglTexture's internal GL texture storage changes - * cogl-pipeline.c is notified with a call to - * _cogl_pipeline_texture_storage_change_notify which inturn sets - * this to TRUE for each texture unit that it is currently bound - * too. When we later come to flush some pipeline state then we will - * always check this to potentially force an update of the texture - * state even if the pipeline hasn't changed. */ - gboolean texture_storage_changed; - -} CoglTextureUnit; - -CoglTextureUnit * -_cogl_get_texture_unit (int index_); - -void -_cogl_destroy_texture_units (CoglContext *ctx); - -void -_cogl_set_active_texture_unit (int unit_index); - -void -_cogl_bind_gl_texture_transient (GLenum gl_target, - GLuint gl_texture); - -void -_cogl_delete_gl_texture (GLuint gl_texture); - -void -_cogl_pipeline_flush_gl_state (CoglContext *context, - CoglPipeline *pipeline, - CoglFramebuffer *framebuffer, - gboolean skip_gl_state, - gboolean unknown_color_alpha); - -void -_cogl_glsl_shader_set_source_with_boilerplate (CoglContext *ctx, - GLuint shader_gl_handle, - GLenum shader_gl_type, - CoglPipeline *pipeline, - GLsizei count_in, - const char **strings_in, - const GLint *lengths_in); - -void -_cogl_sampler_gl_init (CoglContext *context, - CoglSamplerCacheEntry *entry); - -void -_cogl_sampler_gl_free (CoglContext *context, - CoglSamplerCacheEntry *entry); - -void -_cogl_gl_set_uniform (CoglContext *ctx, - GLint location, - const CoglBoxedValue *value); - -#endif /* __COGL_PIPELINE_OPENGL_PRIVATE_H */ - |