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mutter/cogl/cogl-pipeline-snippet.c

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pipeline: Move the snippet source loop into a common function The two loops that generate the functions for the snippets in the fragend and vertend are very similar so to avoid code duplication this patch moves the logic to its own function in a new cogl-pipeline-snippet.c file. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 15:31:21 +00:00
/*
* Cogl
*
This re-licenses Cogl 1.18 under the MIT license Since the Cogl 1.18 branch is actively maintained in parallel with the master branch; this is a counter part to commit 1b83ef938fc16b which re-licensed the master branch to use the MIT license. This re-licensing is a follow up to the proposal that was sent to the Cogl mailing list: http://lists.freedesktop.org/archives/cogl/2013-December/001465.html Note: there was a copyright assignment policy in place for Clutter (and therefore Cogl which was part of Clutter at the time) until the 11th of June 2010 and so we only checked the details after that point (commit 0bbf50f905) For each file, authors were identified via this Git command: $ git blame -p -C -C -C20 -M -M10 0bbf50f905..HEAD We received blanket approvals for re-licensing all Red Hat and Collabora contributions which reduced how many people needed to be contacted individually: - http://lists.freedesktop.org/archives/cogl/2013-December/001470.html - http://lists.freedesktop.org/archives/cogl/2014-January/001536.html Individual approval requests were sent to all the other identified authors who all confirmed the re-license on the Cogl mailinglist: http://lists.freedesktop.org/archives/cogl/2014-January As well as updating the copyright header in all sources files, the COPYING file has been updated to reflect the license change and also document the other licenses used in Cogl such as the SGI Free Software License B, version 2.0 and the 3-clause BSD license. This patch was not simply cherry-picked from master; but the same methodology was used to check the source files.
2014-02-22 01:28:54 +00:00
* A Low Level GPU Graphics and Utilities API
pipeline: Move the snippet source loop into a common function The two loops that generate the functions for the snippets in the fragend and vertend are very similar so to avoid code duplication this patch moves the logic to its own function in a new cogl-pipeline-snippet.c file. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 15:31:21 +00:00
*
Add fragment and vertex snippet hooks for global declarations This adds hook points to add global function and variable declarations to either the fragment or vertex shader. The declarations can then be used by subsequent snippets. Only the ‘declarations’ string of the snippet is used and the code is directly put in the global scope near the top of the shader. The reason this is necessary rather than just adding a normal snippet with the declarations is that for the other hooks Cogl assumes that the snippets are independent of each other. That means if a snippet has a replace string then it will assume that it doesn't even need to generate the code for earlier hooks which means the global declarations would be lost. Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit ebb82d5b0bc30487b7101dc66b769160b40f92ca)
2013-02-26 17:52:20 +00:00
* Copyright (C) 2011, 2013 Intel Corporation.
pipeline: Move the snippet source loop into a common function The two loops that generate the functions for the snippets in the fragend and vertend are very similar so to avoid code duplication this patch moves the logic to its own function in a new cogl-pipeline-snippet.c file. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 15:31:21 +00:00
*
This re-licenses Cogl 1.18 under the MIT license Since the Cogl 1.18 branch is actively maintained in parallel with the master branch; this is a counter part to commit 1b83ef938fc16b which re-licensed the master branch to use the MIT license. This re-licensing is a follow up to the proposal that was sent to the Cogl mailing list: http://lists.freedesktop.org/archives/cogl/2013-December/001465.html Note: there was a copyright assignment policy in place for Clutter (and therefore Cogl which was part of Clutter at the time) until the 11th of June 2010 and so we only checked the details after that point (commit 0bbf50f905) For each file, authors were identified via this Git command: $ git blame -p -C -C -C20 -M -M10 0bbf50f905..HEAD We received blanket approvals for re-licensing all Red Hat and Collabora contributions which reduced how many people needed to be contacted individually: - http://lists.freedesktop.org/archives/cogl/2013-December/001470.html - http://lists.freedesktop.org/archives/cogl/2014-January/001536.html Individual approval requests were sent to all the other identified authors who all confirmed the re-license on the Cogl mailinglist: http://lists.freedesktop.org/archives/cogl/2014-January As well as updating the copyright header in all sources files, the COPYING file has been updated to reflect the license change and also document the other licenses used in Cogl such as the SGI Free Software License B, version 2.0 and the 3-clause BSD license. This patch was not simply cherry-picked from master; but the same methodology was used to check the source files.
2014-02-22 01:28:54 +00:00
* 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.
pipeline: Move the snippet source loop into a common function The two loops that generate the functions for the snippets in the fragend and vertend are very similar so to avoid code duplication this patch moves the logic to its own function in a new cogl-pipeline-snippet.c file. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 15:31:21 +00:00
*
*
*
* Authors:
* Neil Roberts <neil@linux.intel.com>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
Switch use of primitive glib types to c99 equivalents The coding style has for a long time said to avoid using redundant glib data types such as gint or gchar etc because we feel that they make the code look unnecessarily foreign to developers coming from outside of the Gnome developer community. Note: When we tried to find the historical rationale for the types we just found that they were apparently only added for consistent syntax highlighting which didn't seem that compelling. Up until now we have been continuing to use some of the platform specific type such as gint{8,16,32,64} and gsize but this patch switches us over to using the standard c99 equivalents instead so we can further ensure that our code looks familiar to the widest range of C developers who might potentially contribute to Cogl. So instead of using the gint{8,16,32,64} and guint{8,16,32,64} types this switches all Cogl code to instead use the int{8,16,32,64}_t and uint{8,16,32,64}_t c99 types instead. Instead of gsize we now use size_t For now we are not going to use the c99 _Bool type and instead we have introduced a new CoglBool type to use instead of gboolean. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 5967dad2400d32ca6319cef6cb572e81bf2c15f0)
2012-04-16 20:56:40 +00:00
#include "cogl-types.h"
pipeline: Move the snippet source loop into a common function The two loops that generate the functions for the snippets in the fragend and vertend are very similar so to avoid code duplication this patch moves the logic to its own function in a new cogl-pipeline-snippet.c file. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 15:31:21 +00:00
#include "cogl-pipeline-snippet-private.h"
pipeline: Add a snippet hook for the texture lookup This adds a per-layer snippet hook for the texure lookup. Here the snippet can modify the texture coordinates used for the lookup or modify the texel resulting from the lookup. This is the first per-layer hook so this also adds the COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the boilerplate needed to make that work. Most of the functions used by the pipeline state to manage the snippet list has been moved into cogl-pipeline-snippet.c so that it can be shared with the layer state. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 17:36:03 +00:00
#include "cogl-snippet-private.h"
#include "cogl-util.h"
pipeline: Move the snippet source loop into a common function The two loops that generate the functions for the snippets in the fragend and vertend are very similar so to avoid code duplication this patch moves the logic to its own function in a new cogl-pipeline-snippet.c file. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 15:31:21 +00:00
/* Helper functions that are used by both GLSL pipeline backends */
void
_cogl_pipeline_snippet_generate_code (const CoglPipelineSnippetData *data)
{
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
GList *first_snippet, *l;
CoglSnippet *snippet;
pipeline: Move the snippet source loop into a common function The two loops that generate the functions for the snippets in the fragend and vertend are very similar so to avoid code duplication this patch moves the logic to its own function in a new cogl-pipeline-snippet.c file. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 15:31:21 +00:00
int snippet_num = 0;
snippet: Fix detecting the last snippet The function for generating the GLSL for a list of snippets was trying to detect the last snippet so that it could use a different function name. However this wouldn't work if the last snippet has a different hook. To fix this it now just counts the snippets that have the same hook beforehand and detects the last one using the count. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 20:59:05 +00:00
int n_snippets = 0;
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
first_snippet = data->snippets->entries;
snippet: Don't generate code for snippets that are replaced The loop that generates code for a list of snippets now starts from the first snippet that has a replace string. Any snippets before that would be ignored so there's no point in generating code for them. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 21:57:05 +00:00
snippet: Fix detecting the last snippet The function for generating the GLSL for a list of snippets was trying to detect the last snippet so that it could use a different function name. However this wouldn't work if the last snippet has a different hook. To fix this it now just counts the snippets that have the same hook beforehand and detects the last one using the count. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 20:59:05 +00:00
/* First count the number of snippets so we can easily tell when
we're at the last one */
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
for (l = data->snippets->entries; l; l = l->next)
{
snippet = l->data;
if (snippet->hook == data->hook)
{
/* Don't bother processing any previous snippets if we reach
one that has a replacement */
if (snippet->replace)
{
n_snippets = 1;
first_snippet = l;
}
else
n_snippets++;
}
}
pipeline: Move the snippet source loop into a common function The two loops that generate the functions for the snippets in the fragend and vertend are very similar so to avoid code duplication this patch moves the logic to its own function in a new cogl-pipeline-snippet.c file. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 15:31:21 +00:00
snippet: Don't generate code for snippets that are replaced The loop that generates code for a list of snippets now starts from the first snippet that has a replace string. Any snippets before that would be ignored so there's no point in generating code for them. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 21:57:05 +00:00
/* If there weren't any snippets then generate a stub function with
the final name */
if (n_snippets == 0)
{
if (data->return_type)
g_string_append_printf (data->source_buf,
"\n"
"%s\n"
"%s (%s)\n"
"{\n"
" return %s (%s);\n"
"}\n",
data->return_type,
data->final_name,
data->argument_declarations ?
data->argument_declarations : "",
data->chain_function,
data->arguments ? data->arguments : "");
else
g_string_append_printf (data->source_buf,
"\n"
"void\n"
"%s (%s)\n"
"{\n"
" %s (%s);\n"
"}\n",
data->final_name,
data->argument_declarations ?
data->argument_declarations : "",
data->chain_function,
data->arguments ? data->arguments : "");
return;
}
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
for (l = first_snippet; snippet_num < n_snippets; l = l->next)
{
snippet = l->data;
pipeline: Move the snippet source loop into a common function The two loops that generate the functions for the snippets in the fragend and vertend are very similar so to avoid code duplication this patch moves the logic to its own function in a new cogl-pipeline-snippet.c file. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 15:31:21 +00:00
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
if (snippet->hook == data->hook)
{
const char *source;
pipeline: Move the snippet source loop into a common function The two loops that generate the functions for the snippets in the fragend and vertend are very similar so to avoid code duplication this patch moves the logic to its own function in a new cogl-pipeline-snippet.c file. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 15:31:21 +00:00
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
if ((source = cogl_snippet_get_declarations (snippet)))
g_string_append (data->source_buf, source);
pipeline: Move the snippet source loop into a common function The two loops that generate the functions for the snippets in the fragend and vertend are very similar so to avoid code duplication this patch moves the logic to its own function in a new cogl-pipeline-snippet.c file. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 15:31:21 +00:00
g_string_append_printf (data->source_buf,
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
"\n"
"%s\n",
data->return_type ?
data->return_type :
"void");
if (snippet_num + 1 < n_snippets)
g_string_append_printf (data->source_buf,
"%s_%i",
data->function_prefix,
snippet_num);
else
g_string_append (data->source_buf, data->final_name);
g_string_append (data->source_buf, " (");
if (data->argument_declarations)
g_string_append (data->source_buf, data->argument_declarations);
g_string_append (data->source_buf,
")\n"
"{\n");
if (data->return_type && !data->return_variable_is_argument)
g_string_append_printf (data->source_buf,
" %s %s;\n"
"\n",
data->return_type,
data->return_variable);
if ((source = cogl_snippet_get_pre (snippet)))
g_string_append (data->source_buf, source);
/* Chain on to the next function, or bypass it if there is
a replace string */
if ((source = cogl_snippet_get_replace (snippet)))
g_string_append (data->source_buf, source);
else
{
g_string_append (data->source_buf, " ");
if (data->return_type)
g_string_append_printf (data->source_buf,
"%s = ",
data->return_variable);
if (snippet_num > 0)
g_string_append_printf (data->source_buf,
"%s_%i",
data->function_prefix,
snippet_num - 1);
else
g_string_append (data->source_buf, data->chain_function);
g_string_append (data->source_buf, " (");
if (data->arguments)
g_string_append (data->source_buf, data->arguments);
g_string_append (data->source_buf, ");\n");
}
if ((source = cogl_snippet_get_post (snippet)))
g_string_append (data->source_buf, source);
if (data->return_type)
g_string_append_printf (data->source_buf,
" return %s;\n",
data->return_variable);
g_string_append (data->source_buf, "}\n");
snippet_num++;
}
}
pipeline: Move the snippet source loop into a common function The two loops that generate the functions for the snippets in the fragend and vertend are very similar so to avoid code duplication this patch moves the logic to its own function in a new cogl-pipeline-snippet.c file. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 15:31:21 +00:00
}
pipeline: Add a snippet hook for the texture lookup This adds a per-layer snippet hook for the texure lookup. Here the snippet can modify the texture coordinates used for the lookup or modify the texel resulting from the lookup. This is the first per-layer hook so this also adds the COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the boilerplate needed to make that work. Most of the functions used by the pipeline state to manage the snippet list has been moved into cogl-pipeline-snippet.c so that it can be shared with the layer state. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 17:36:03 +00:00
Add fragment and vertex snippet hooks for global declarations This adds hook points to add global function and variable declarations to either the fragment or vertex shader. The declarations can then be used by subsequent snippets. Only the ‘declarations’ string of the snippet is used and the code is directly put in the global scope near the top of the shader. The reason this is necessary rather than just adding a normal snippet with the declarations is that for the other hooks Cogl assumes that the snippets are independent of each other. That means if a snippet has a replace string then it will assume that it doesn't even need to generate the code for earlier hooks which means the global declarations would be lost. Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit ebb82d5b0bc30487b7101dc66b769160b40f92ca)
2013-02-26 17:52:20 +00:00
void
_cogl_pipeline_snippet_generate_declarations (GString *declarations_buf,
CoglSnippetHook hook,
CoglPipelineSnippetList *snippets)
{
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
GList *l;
Add fragment and vertex snippet hooks for global declarations This adds hook points to add global function and variable declarations to either the fragment or vertex shader. The declarations can then be used by subsequent snippets. Only the ‘declarations’ string of the snippet is used and the code is directly put in the global scope near the top of the shader. The reason this is necessary rather than just adding a normal snippet with the declarations is that for the other hooks Cogl assumes that the snippets are independent of each other. That means if a snippet has a replace string then it will assume that it doesn't even need to generate the code for earlier hooks which means the global declarations would be lost. Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit ebb82d5b0bc30487b7101dc66b769160b40f92ca)
2013-02-26 17:52:20 +00:00
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
for (l = snippets->entries; l; l = l->next)
{
CoglSnippet *snippet = l->data;
Add fragment and vertex snippet hooks for global declarations This adds hook points to add global function and variable declarations to either the fragment or vertex shader. The declarations can then be used by subsequent snippets. Only the ‘declarations’ string of the snippet is used and the code is directly put in the global scope near the top of the shader. The reason this is necessary rather than just adding a normal snippet with the declarations is that for the other hooks Cogl assumes that the snippets are independent of each other. That means if a snippet has a replace string then it will assume that it doesn't even need to generate the code for earlier hooks which means the global declarations would be lost. Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit ebb82d5b0bc30487b7101dc66b769160b40f92ca)
2013-02-26 17:52:20 +00:00
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
if (snippet->hook == hook)
{
const char *source;
Add fragment and vertex snippet hooks for global declarations This adds hook points to add global function and variable declarations to either the fragment or vertex shader. The declarations can then be used by subsequent snippets. Only the ‘declarations’ string of the snippet is used and the code is directly put in the global scope near the top of the shader. The reason this is necessary rather than just adding a normal snippet with the declarations is that for the other hooks Cogl assumes that the snippets are independent of each other. That means if a snippet has a replace string then it will assume that it doesn't even need to generate the code for earlier hooks which means the global declarations would be lost. Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit ebb82d5b0bc30487b7101dc66b769160b40f92ca)
2013-02-26 17:52:20 +00:00
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
if ((source = cogl_snippet_get_declarations (snippet)))
g_string_append (declarations_buf, source);
}
}
pipeline: Add a snippet hook for the texture lookup This adds a per-layer snippet hook for the texure lookup. Here the snippet can modify the texture coordinates used for the lookup or modify the texel resulting from the lookup. This is the first per-layer hook so this also adds the COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the boilerplate needed to make that work. Most of the functions used by the pipeline state to manage the snippet list has been moved into cogl-pipeline-snippet.c so that it can be shared with the layer state. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 17:36:03 +00:00
}
void
_cogl_pipeline_snippet_list_free (CoglPipelineSnippetList *list)
{
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
GList *l, *tmp;
pipeline: Add a snippet hook for the texture lookup This adds a per-layer snippet hook for the texure lookup. Here the snippet can modify the texture coordinates used for the lookup or modify the texel resulting from the lookup. This is the first per-layer hook so this also adds the COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the boilerplate needed to make that work. Most of the functions used by the pipeline state to manage the snippet list has been moved into cogl-pipeline-snippet.c so that it can be shared with the layer state. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 17:36:03 +00:00
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
for (l = list->entries; l; l = tmp)
{
tmp = l->next;
cogl_object_unref (l->data);
g_list_free_1 (l);
}
pipeline: Add a snippet hook for the texture lookup This adds a per-layer snippet hook for the texure lookup. Here the snippet can modify the texture coordinates used for the lookup or modify the texel resulting from the lookup. This is the first per-layer hook so this also adds the COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the boilerplate needed to make that work. Most of the functions used by the pipeline state to manage the snippet list has been moved into cogl-pipeline-snippet.c so that it can be shared with the layer state. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 17:36:03 +00:00
}
void
_cogl_pipeline_snippet_list_add (CoglPipelineSnippetList *list,
CoglSnippet *snippet)
{
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
list->entries = g_list_append (list->entries, cogl_object_ref (snippet));
pipeline: Add a snippet hook for the texture lookup This adds a per-layer snippet hook for the texure lookup. Here the snippet can modify the texture coordinates used for the lookup or modify the texel resulting from the lookup. This is the first per-layer hook so this also adds the COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the boilerplate needed to make that work. Most of the functions used by the pipeline state to manage the snippet list has been moved into cogl-pipeline-snippet.c so that it can be shared with the layer state. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 17:36:03 +00:00
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
_cogl_snippet_make_immutable (snippet);
pipeline: Add a snippet hook for the texture lookup This adds a per-layer snippet hook for the texure lookup. Here the snippet can modify the texture coordinates used for the lookup or modify the texel resulting from the lookup. This is the first per-layer hook so this also adds the COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the boilerplate needed to make that work. Most of the functions used by the pipeline state to manage the snippet list has been moved into cogl-pipeline-snippet.c so that it can be shared with the layer state. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 17:36:03 +00:00
}
void
_cogl_pipeline_snippet_list_copy (CoglPipelineSnippetList *dst,
const CoglPipelineSnippetList *src)
{
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
GQueue queue = G_QUEUE_INIT;
const GList *l;
pipeline: Add a snippet hook for the texture lookup This adds a per-layer snippet hook for the texure lookup. Here the snippet can modify the texture coordinates used for the lookup or modify the texel resulting from the lookup. This is the first per-layer hook so this also adds the COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the boilerplate needed to make that work. Most of the functions used by the pipeline state to manage the snippet list has been moved into cogl-pipeline-snippet.c so that it can be shared with the layer state. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 17:36:03 +00:00
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
for (l = src->entries; l; l = l->next)
g_queue_push_tail (&queue, cogl_object_ref (l->data));
pipeline: Add a snippet hook for the texture lookup This adds a per-layer snippet hook for the texure lookup. Here the snippet can modify the texture coordinates used for the lookup or modify the texel resulting from the lookup. This is the first per-layer hook so this also adds the COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the boilerplate needed to make that work. Most of the functions used by the pipeline state to manage the snippet list has been moved into cogl-pipeline-snippet.c so that it can be shared with the layer state. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 17:36:03 +00:00
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
dst->entries = queue.head;
pipeline: Add a snippet hook for the texture lookup This adds a per-layer snippet hook for the texure lookup. Here the snippet can modify the texture coordinates used for the lookup or modify the texel resulting from the lookup. This is the first per-layer hook so this also adds the COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the boilerplate needed to make that work. Most of the functions used by the pipeline state to manage the snippet list has been moved into cogl-pipeline-snippet.c so that it can be shared with the layer state. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 17:36:03 +00:00
}
void
_cogl_pipeline_snippet_list_hash (CoglPipelineSnippetList *list,
unsigned int *hash)
{
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
GList *l;
pipeline: Add a snippet hook for the texture lookup This adds a per-layer snippet hook for the texure lookup. Here the snippet can modify the texture coordinates used for the lookup or modify the texel resulting from the lookup. This is the first per-layer hook so this also adds the COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the boilerplate needed to make that work. Most of the functions used by the pipeline state to manage the snippet list has been moved into cogl-pipeline-snippet.c so that it can be shared with the layer state. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 17:36:03 +00:00
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
for (l = list->entries; l; l = l->next)
pipeline: Add a snippet hook for the texture lookup This adds a per-layer snippet hook for the texure lookup. Here the snippet can modify the texture coordinates used for the lookup or modify the texel resulting from the lookup. This is the first per-layer hook so this also adds the COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the boilerplate needed to make that work. Most of the functions used by the pipeline state to manage the snippet list has been moved into cogl-pipeline-snippet.c so that it can be shared with the layer state. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 17:36:03 +00:00
{
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
CoglSnippet *snippet = l->data;
pipeline: Add a snippet hook for the texture lookup This adds a per-layer snippet hook for the texure lookup. Here the snippet can modify the texture coordinates used for the lookup or modify the texel resulting from the lookup. This is the first per-layer hook so this also adds the COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the boilerplate needed to make that work. Most of the functions used by the pipeline state to manage the snippet list has been moved into cogl-pipeline-snippet.c so that it can be shared with the layer state. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 17:36:03 +00:00
*hash = _cogl_util_one_at_a_time_hash (*hash,
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
&snippet,
pipeline: Add a snippet hook for the texture lookup This adds a per-layer snippet hook for the texure lookup. Here the snippet can modify the texture coordinates used for the lookup or modify the texel resulting from the lookup. This is the first per-layer hook so this also adds the COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the boilerplate needed to make that work. Most of the functions used by the pipeline state to manage the snippet list has been moved into cogl-pipeline-snippet.c so that it can be shared with the layer state. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 17:36:03 +00:00
sizeof (CoglSnippet *));
}
}
Switch use of primitive glib types to c99 equivalents The coding style has for a long time said to avoid using redundant glib data types such as gint or gchar etc because we feel that they make the code look unnecessarily foreign to developers coming from outside of the Gnome developer community. Note: When we tried to find the historical rationale for the types we just found that they were apparently only added for consistent syntax highlighting which didn't seem that compelling. Up until now we have been continuing to use some of the platform specific type such as gint{8,16,32,64} and gsize but this patch switches us over to using the standard c99 equivalents instead so we can further ensure that our code looks familiar to the widest range of C developers who might potentially contribute to Cogl. So instead of using the gint{8,16,32,64} and guint{8,16,32,64} types this switches all Cogl code to instead use the int{8,16,32,64}_t and uint{8,16,32,64}_t c99 types instead. Instead of gsize we now use size_t For now we are not going to use the c99 _Bool type and instead we have introduced a new CoglBool type to use instead of gboolean. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 5967dad2400d32ca6319cef6cb572e81bf2c15f0)
2012-04-16 20:56:40 +00:00
CoglBool
pipeline: Add a snippet hook for the texture lookup This adds a per-layer snippet hook for the texure lookup. Here the snippet can modify the texture coordinates used for the lookup or modify the texel resulting from the lookup. This is the first per-layer hook so this also adds the COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the boilerplate needed to make that work. Most of the functions used by the pipeline state to manage the snippet list has been moved into cogl-pipeline-snippet.c so that it can be shared with the layer state. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 17:36:03 +00:00
_cogl_pipeline_snippet_list_equal (CoglPipelineSnippetList *list0,
CoglPipelineSnippetList *list1)
{
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
GList *l0, *l1;
pipeline: Add a snippet hook for the texture lookup This adds a per-layer snippet hook for the texure lookup. Here the snippet can modify the texture coordinates used for the lookup or modify the texel resulting from the lookup. This is the first per-layer hook so this also adds the COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the boilerplate needed to make that work. Most of the functions used by the pipeline state to manage the snippet list has been moved into cogl-pipeline-snippet.c so that it can be shared with the layer state. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 17:36:03 +00:00
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
for (l0 = list0->entries, l1 = list1->entries;
pipeline: Add a snippet hook for the texture lookup This adds a per-layer snippet hook for the texure lookup. Here the snippet can modify the texture coordinates used for the lookup or modify the texel resulting from the lookup. This is the first per-layer hook so this also adds the COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the boilerplate needed to make that work. Most of the functions used by the pipeline state to manage the snippet list has been moved into cogl-pipeline-snippet.c so that it can be shared with the layer state. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 17:36:03 +00:00
l0 && l1;
Use a GList instead of a BSD list for CoglPipelineSnippetList Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
2013-06-08 22:53:11 +00:00
l0 = l0->next, l1 = l1->next)
if (l0->data != l1->data)
pipeline: Add a snippet hook for the texture lookup This adds a per-layer snippet hook for the texure lookup. Here the snippet can modify the texture coordinates used for the lookup or modify the texel resulting from the lookup. This is the first per-layer hook so this also adds the COGL_PIPELINE_LAYER_STATE_FRAGMENT_SNIPPETS state and all of the boilerplate needed to make that work. Most of the functions used by the pipeline state to manage the snippet list has been moved into cogl-pipeline-snippet.c so that it can be shared with the layer state. Reviewed-by: Robert Bragg <robert@linux.intel.com>
2011-11-25 17:36:03 +00:00
return FALSE;
return l0 == NULL && l1 == NULL;
}
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