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[220/906] Use a better key for the pool of textures

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This commit is contained in:
Julien Isorce 2008-09-13 18:17:42 +02:00 committed by Tim-Philipp Müller
parent cdffac5606
commit bb8ba84647
1 changed files with 39 additions and 41 deletions
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80
gst-libs/gst/gl/gstgldisplay.c
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@ -30,8 +30,8 @@
* N=1: errors
* N=2: errors warnings
* N=3: errors warnings infos
* N=4: errors warnings infos logs
* N=5: errors warnings infos logs .?.
* N=4: errors warnings infos
* N=5: errors warnings infos logs
*/
GST_DEBUG_CATEGORY_STATIC (gst_gl_display_debug);
@ -133,7 +133,7 @@ gst_gl_display_init (GstGLDisplay *display, GstGLDisplayClass *klass)
display->win_ypos = 0;
display->visible = FALSE;
display->isAlive = TRUE;
display->texture_pool = g_hash_table_new (g_str_hash, g_str_equal);
display->texture_pool = g_hash_table_new (g_int_hash, g_int_equal);
//conditions
display->cond_create_context = g_cond_new ();
@ -1638,7 +1638,7 @@ gst_gl_display_thread_gen_shader (GstGLDisplay* display)
gst_gl_shader_compile (display->gen_shader, &error);
if (error)
{
g_warning ("%s", error->message);
GST_CAT_ERROR (GST_CAT_DEFAULT, "%s", error->message);
g_error_free (error);
error = NULL;
gst_gl_shader_use (NULL);
@ -1654,7 +1654,7 @@ gst_gl_display_thread_gen_shader (GstGLDisplay* display)
}
else
{
g_warning ("One of the filter required ARB_fragment_shader\n");
GST_CAT_WARNING (GST_CAT_DEFAULT, "One of the filter required ARB_fragment_shader");
display->isAlive = FALSE;
display->gen_shader = NULL;
}
@ -1855,41 +1855,28 @@ gst_gl_display_glgen_texture (GstGLDisplay* display, GLuint* pTexture, GLint wid
{
if (display->isAlive)
{
gchar string_size[512];
GQueue* sub_texture_pool = NULL;
sprintf (string_size, "%dx%d", width, height);
sub_texture_pool = g_hash_table_lookup (display->texture_pool, string_size);
//if the size is known
if (sub_texture_pool)
{
//check if there is a texture available in the pool
GstGLDisplayTex* tex = g_queue_pop_head (sub_texture_pool);
if (tex)
{
*pTexture = tex->texture;
g_free (tex);
}
//otherwise one more texture is generated
//note that this new texture is added in the pool
//only after being used
else
{
glGenTextures (1, pTexture);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, *pTexture);
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8,
width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
}
//make a unique key from w and h
//the key cannot be w*h because (4*6 = 6*4 = 2*12 = 12*2)
guint key = width;
key <<= 16;
key |= height;
sub_texture_pool = g_hash_table_lookup (display->texture_pool, GUINT_TO_POINTER(key));
//if there is a sub texture pool associated to th given key
if (sub_texture_pool && g_queue_get_length(sub_texture_pool) > 0)
{
//a texture is available in the pool
GstGLDisplayTex* tex = g_queue_pop_head (sub_texture_pool);
*pTexture = tex->texture;
g_free (tex);
GST_CAT_LOG (GST_CAT_DEFAULT, "get texture id:%d from the sub texture pool: %d",
*pTexture, key);
}
//should be factorized
else
{
//sub texture pool does not exist yet or empty
glGenTextures (1, pTexture);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, *pTexture);
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8,
@ -1898,6 +1885,8 @@ gst_gl_display_glgen_texture (GstGLDisplay* display, GLuint* pTexture, GLint wid
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
GST_CAT_LOG (GST_CAT_DEFAULT, "generate texture id:%d", *pTexture);
}
}
@ -1914,20 +1903,24 @@ gst_gl_display_gldel_texture (GstGLDisplay* display, GLuint* pTexture, GLint wid
//Each existing texture is destroyed only when the pool is destroyed
//The pool of textures is deleted in the GstGLDisplay destructor
gchar string_size[512];
GQueue* sub_texture_pool = NULL;
GstGLDisplayTex* tex = NULL;
sprintf (string_size, "%dx%d", width, height);
sub_texture_pool = g_hash_table_lookup (display->texture_pool, string_size);
//make a unique key from w and h
//the key cannot be w*h because (4*6 = 6*4 = 2*12 = 12*2)
guint key = width;
key <<= 16;
key |= height;
sub_texture_pool = g_hash_table_lookup (display->texture_pool, GUINT_TO_POINTER(key));
//if the size is known
if (!sub_texture_pool)
{
sub_texture_pool = g_queue_new ();
g_hash_table_insert (display->texture_pool, string_size, sub_texture_pool);
g_hash_table_insert (display->texture_pool, GUINT_TO_POINTER(key), sub_texture_pool);
GST_CAT_INFO (GST_CAT_DEFAULT, "texture pool insert: %s", string_size);
GST_CAT_INFO (GST_CAT_DEFAULT, "texture pool size: %d", g_hash_table_size (display->texture_pool));
GST_CAT_INFO (GST_CAT_DEFAULT, "one more sub texture pool inserted: %d ", key);
GST_CAT_INFO (GST_CAT_DEFAULT, "nb sub texture pools: %d", g_hash_table_size (display->texture_pool));
}
//contruct a sub texture pool element
@ -1937,6 +1930,10 @@ gst_gl_display_gldel_texture (GstGLDisplay* display, GLuint* pTexture, GLint wid
//add tex to the pool, it makes texture allocation reusable
g_queue_push_tail (sub_texture_pool, tex);
GST_CAT_LOG (GST_CAT_DEFAULT, "texture id:%d added to the sub texture pool: %d",
tex->texture, key);
GST_CAT_LOG (GST_CAT_DEFAULT, "%d texture(s) in the sub texture pool: %d",
g_queue_get_length (sub_texture_pool), key);
}
@ -1949,6 +1946,7 @@ gboolean gst_gl_display_texture_pool_func_clean (gpointer key, gpointer value, g
{
GstGLDisplayTex* tex = g_queue_pop_head (sub_texture_pool);
glDeleteTextures (1, &tex->texture);
GST_CAT_INFO (GST_CAT_DEFAULT, "texture id: %d deleted", tex->texture);
g_free (tex);
}
@ -1974,7 +1972,7 @@ gst_gl_display_check_framebuffer_status(void)
break;
default:
GST_CAT_ERROR (GST_CAT_DEFAULT, "General FBO error\n");
GST_CAT_ERROR (GST_CAT_DEFAULT, "General FBO error");
}
}