[Gfxprim] [repo.or.cz] gfxprim.git branch master updated: 2b5429389de2a646451066572a1c143b80b2efd5

metan metan at ucw.cz
Tue Jul 3 12:48:19 CEST 2012


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http://repo.or.cz/w/gfxprim.git/commit/2b5429389de2a646451066572a1c143b80b2efd5

commit 2b5429389de2a646451066572a1c143b80b2efd5
Author: Cyril Hrubis <metan at ucw.cz>
Date:   Tue Jul 3 12:42:31 2012 +0200

    filters: Add initial version of multithreaded linear convolution.

diff --git a/libs/filters/GP_LinearThreads.c b/libs/filters/GP_LinearThreads.c
new file mode 100644
index 0000000..e309e80
--- /dev/null
+++ b/libs/filters/GP_LinearThreads.c
@@ -0,0 +1,301 @@
+/*****************************************************************************
+ * This file is part of gfxprim library.                                     *
+ *                                                                           *
+ * Gfxprim is free software; you can redistribute it and/or                  *
+ * modify it under the terms of the GNU Lesser General Public                *
+ * License as published by the Free Software Foundation; either              *
+ * version 2.1 of the License, or (at your option) any later version.        *
+ *                                                                           *
+ * Gfxprim is distributed in the hope that it will be useful,                *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of            *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
+ * Lesser General Public License for more details.                           *
+ *                                                                           *
+ * You should have received a copy of the GNU Lesser General Public          *
+ * License along with gfxprim; if not, write to the Free Software            *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,                        *
+ * Boston, MA  02110-1301  USA                                               *
+ *                                                                           *
+ * Copyright (C) 2009-2012 Cyril Hrubis <metan at ucw.cz>                       *
+ *                                                                           *
+ *****************************************************************************/
+
+#include <unistd.h>
+#include <pthread.h>
+#include <string.h>
+
+#include "core/GP_Common.h"
+#include "core/GP_Debug.h"
+
+#include "GP_Linear.h"
+#include "GP_LinearThreads.h"
+
+static int nr_threads(GP_Size w, GP_Size h)
+{
+	int count = sysconf(_SC_NPROCESSORS_ONLN);
+	int threads = GP_MIN(count, (int)(w * h / 1024) + 1);
+
+	if (count < -1)
+		threads = 1;
+
+	GP_DEBUG(1, "Found %u CPUs size %ux%u runnig %u threads",
+	         count, w, h, threads);
+
+//	return threads;
+	return 4;
+}
+
+/*
+ * Multithreaded callback wrapper.
+ */
+struct callback_priv {
+	float max;
+	int abort;
+	unsigned int nr_threads;
+	pthread_mutex_t mutex;
+	GP_ProgressCallback *orig_callback;
+};
+
+static int progress_callback_mp(GP_ProgressCallback *self)
+{
+	struct callback_priv *priv = self->priv;
+
+	/* If any thread got non-zero return value from a callback, abort all */
+	if (priv->abort)
+		return 1;
+
+	if (pthread_mutex_trylock(&priv->mutex)) {
+		GP_DEBUG(1, "Mutex locked, skipping calllback.");
+		return 0;
+	}
+
+	/* Compute max value for the percentage */
+	priv->orig_callback->percentage = GP_MAX(self->percentage, priv->max);
+	priv->max = priv->orig_callback->percentage;
+
+	/* Call the original callback */
+	int ret = priv->orig_callback->callback(priv->orig_callback);
+	
+	/* Turn on abort flag if callback returned nonzero */
+	if (ret)
+		priv->abort = 1;
+
+	pthread_mutex_unlock(&priv->mutex);
+
+	return ret;
+}
+
+static void callback_priv_init(struct callback_priv *priv, int nr_threads,
+                               GP_ProgressCallback *orig_callback)
+{
+	priv->nr_threads = nr_threads;
+	priv->orig_callback = orig_callback;
+	priv->max = 0;
+	priv->abort = 0;
+	pthread_mutex_init(&priv->mutex, NULL);
+}
+
+static void callback_priv_exit(struct callback_priv *priv)
+{
+	pthread_mutex_destroy(&priv->mutex);
+}
+
+/*
+ * This code just packs and unpacks convolution parameters.
+ */
+struct convolution {
+	const GP_Context *src;
+	GP_Coord x_src;
+	GP_Coord y_src;
+	GP_Size w_src;
+	GP_Size h_src;
+	
+	GP_Context *dst;
+	GP_Coord x_dst;
+	GP_Coord y_dst;
+
+	float *kernel;
+	unsigned int ks;
+	float kern_div;
+
+	GP_ProgressCallback *callback;
+};
+
+static void convolution_init(struct convolution *conv, const GP_Context *src,
+                             GP_Coord x_src, GP_Coord y_src,
+                             GP_Size w_src, GP_Size h_src,
+                             GP_Context *dst, GP_Coord x_dst, GP_Coord y_dst,
+		             float kernel[], unsigned int ks, float kern_div,
+                             GP_ProgressCallback *callback)
+{
+	conv->src = src;
+	conv->x_src = x_src;
+	conv->y_src = y_src;
+	conv->w_src = w_src;
+	conv->h_src = h_src;
+	conv->dst = dst;
+	conv->x_dst = x_dst;
+	conv->y_dst = y_dst;
+	conv->kernel = kernel;
+	conv->ks = ks;
+	conv->kern_div = kern_div;
+	conv->callback = callback;
+}
+
+static void *h_linear_convolution(void *arg)
+{
+	struct convolution *conv = arg;
+
+	long ret;
+
+	ret = GP_FilterHLinearConvolution_Raw(conv->src, conv->x_src, conv->y_src,
+	                                      conv->w_src, conv->h_src, conv->dst,
+					      conv->x_dst, conv->y_dst, conv->kernel,
+					      conv->ks, conv->kern_div, conv->callback);
+	return (void*)ret;
+}
+
+static void *v_linear_convolution(void *arg)
+{
+	struct convolution *conv = arg;
+
+	long ret;
+
+	ret = GP_FilterVLinearConvolution_Raw(conv->src, conv->x_src, conv->y_src,
+	                                      conv->w_src, conv->h_src, conv->dst,
+					      conv->x_dst, conv->y_dst, conv->kernel,
+					      conv->ks, conv->kern_div, conv->callback);
+	return (void*)ret;
+}
+
+
+int GP_FilterHLinearConvolutionMP_Raw(const GP_Context *src,
+                                     GP_Coord x_src, GP_Coord y_src,
+                                     GP_Size w_src, GP_Size h_src,
+                                     GP_Context *dst,
+                                     GP_Coord x_dst, GP_Coord y_dst,
+				     float kernel[], uint32_t kw, float kern_div,
+				     GP_ProgressCallback *callback)
+{
+	int t = nr_threads(w_src, h_src);
+
+	if (t == 1) {
+		return GP_FilterHLinearConvolution_Raw(src, x_src, y_src,
+		                                       w_src, h_src,
+		                                       dst, x_dst, y_dst,
+		                                       kernel, kw, kern_div,
+		                                       callback);
+	}
+
+	/* Create multithreaded safe callback on the stack */
+	struct callback_priv priv;
+	callback_priv_init(&priv, t, callback);
+	GP_ProgressCallback callback_mp = {0, progress_callback_mp, &priv};
+
+	/* Run t threads */
+	int i;
+	pthread_t threads[t];
+	struct convolution convs[t];
+	GP_Size h = h_src/t;
+
+	for (i = 0; i < t; i++) {
+		GP_Coord y_src_2 = y_src + i * h;
+		GP_Coord y_dst_2 = y_dst + i * h;
+		GP_Size  h_src_2 = h;
+		
+		if (i == t - 1)
+			h_src_2 = h_src - i * h;
+
+		/* Pack convolution parameters into the structure */
+		convolution_init(&convs[i], src, x_src, y_src_2, w_src, h_src_2,
+		                 dst, x_dst, y_dst_2, kernel, kw, kern_div,
+				 callback ? &callback_mp : NULL);
+
+		pthread_create(&threads[i], NULL, h_linear_convolution, &convs[i]); 
+	}
+
+	int ret = 0;
+
+	for (i = 0; i < t; i++) {
+		long r;
+
+		pthread_join(threads[i], (void*)&r);
+
+		ret |= (int)r;
+	}
+	
+	callback_priv_exit(&priv);
+
+	return ret;
+}
+
+
+int GP_FilterVLinearConvolutionMP_Raw(const GP_Context *src,
+                                     GP_Coord x_src, GP_Coord y_src,
+                                     GP_Size w_src, GP_Size h_src,
+                                     GP_Context *dst,
+                                     GP_Coord x_dst, GP_Coord y_dst,
+                                     float kernel[], uint32_t kh, float kern_div,
+                                     GP_ProgressCallback *callback)
+{
+	int t = nr_threads(w_src, h_src);
+
+	if (t == 1) {
+		return GP_FilterVLinearConvolution_Raw(src, x_src, y_src,
+		                                       w_src, h_src,
+		                                       dst, x_dst, y_dst,
+		                                       kernel, kh, kern_div,
+		                                       callback);
+	}
+	
+	/* Create multithreaded safe callback on the stack */
+	struct callback_priv priv;
+	callback_priv_init(&priv, t, callback);
+	GP_ProgressCallback callback_mp = {0, progress_callback_mp, &priv};
+	
+	int i;
+	pthread_t threads[t];
+	struct convolution convs[t];
+	GP_Size h = h_src/t;
+
+	for (i = 0; i < t; i++) {
+		GP_Coord y_src_2 = y_src + i * h;
+		GP_Coord y_dst_2 = y_dst + i * h;
+		GP_Size  h_src_2 = h;
+		
+		if (i == t - 1)
+			h_src_2 = h_src - i * h;
+		
+		/* Pack convolution parameters into the structure */
+		convolution_init(&convs[i], src, x_src, y_src_2, w_src, h_src_2,
+		                 dst, x_dst, y_dst_2, kernel, kh, kern_div,
+				 callback ? &callback_mp : NULL);
+		
+		pthread_create(&threads[i], NULL, v_linear_convolution, &convs[i]); 
+	}
+
+	int ret = 0;
+
+	for (i = 0; i < t; i++) {
+		long r;
+		pthread_join(threads[i], (void*)&r);
+
+		ret |= (int)r;
+	}
+	
+	callback_priv_exit(&priv);
+
+	return ret;
+}
+
+/*
+int GP_FilterLinearConvolutionMP_Raw(const GP_Context *src,
+                                    GP_Coord x_src, GP_Coord y_src,
+                                    GP_Size w_src, GP_Size h_src,
+                                    GP_Context *dst,
+                                    GP_Coord x_dst, GP_Coord y_dst,
+                                    float kernel[], uint32_t kw, uint32_t kh,
+                                    float kern_div, GP_ProgressCallback *callback)
+{
+}
+*/

http://repo.or.cz/w/gfxprim.git/commit/d8048d925822c4528faf5c31f02dbc04bcf3dd1e

commit d8048d925822c4528faf5c31f02dbc04bcf3dd1e
Author: Cyril Hrubis <metan at ucw.cz>
Date:   Tue Jul 3 10:47:21 2012 +0200

    filters: Linear Convolution make use of the TempAllocator.

diff --git a/libs/filters/GP_Linear.c b/libs/filters/GP_Linear.c
index ca5c38a..f06d0f6 100644
--- a/libs/filters/GP_Linear.c
+++ b/libs/filters/GP_Linear.c
@@ -22,6 +22,7 @@
 
 #include "core/GP_Context.h"
 #include "core/GP_GetPutPixel.h"
+#include "core/GP_TempAlloc.h"
 #include "core/GP_Clamp.h"
 
 #include "core/GP_Debug.h"
@@ -42,18 +43,25 @@ int GP_FilterHLinearConvolution_Raw(const GP_Context *src,
 	uint32_t i;
 	int32_t ikernel[kw], ikern_div;
 	uint32_t size = w_src + kw - 1;
-	
+
 	GP_DEBUG(1, "Horizontal linear convolution kernel width %u "
-	            "rectangle %ux%u", kw, w_src, h_src);
+	            "offset %ix%i rectangle %ux%u",
+		    kw, x_src, y_src, w_src, h_src);
 
 	for (i = 0; i < kw; i++)
 		ikernel[i] = kernel[i] * MUL + 0.5;
 
 	ikern_div = kern_div * MUL + 0.5;
 
+	/* Create temporary buffers */
+	GP_TempAllocCreate(temp, 3 * size * sizeof(int));
+
+	int *R = GP_TempAllocGet(temp, size * sizeof(int));
+	int *G = GP_TempAllocGet(temp, size * sizeof(int));
+	int *B = GP_TempAllocGet(temp, size * sizeof(int));
+
 	/* Do horizontal linear convolution */	
 	for (y = 0; y < (GP_Coord)h_src; y++) {
-		int R[size], G[size], B[size];
 		int yi = GP_MIN(y_src + y, (int)src->h - 1);
 
 		/* Fetch the whole row */
@@ -63,7 +71,7 @@ int GP_FilterHLinearConvolution_Raw(const GP_Context *src,
 		i = 0;
 
 		/* Copy border pixel until the source image starts */
-		while (xi <= 0) {
+		while (xi <= 0 && i < size) {
 			R[i] = GP_Pixel_GET_R_RGB888(pix);
 			G[i] = GP_Pixel_GET_G_RGB888(pix);
 			B[i] = GP_Pixel_GET_B_RGB888(pix);
@@ -73,7 +81,7 @@ int GP_FilterHLinearConvolution_Raw(const GP_Context *src,
 		}
 
 		/* Use as much source image pixels as possible */
-		while (xi < (int)src->w) {
+		while (xi < (int)src->w && i < size) {
 			pix = GP_GetPixel_Raw_24BPP(src, xi, yi);
 
 			R[i] = GP_Pixel_GET_R_RGB888(pix);
@@ -108,10 +116,6 @@ int GP_FilterHLinearConvolution_Raw(const GP_Context *src,
 			g /= ikern_div;
 			b /= ikern_div;
 		
-			R[x] = r;
-			G[x] = g;
-			B[x] = b;
-
 			/* and clamp just to be extra sure */
 			r = GP_CLAMP(r, 0, 255);
 			g = GP_CLAMP(g, 0, 255);
@@ -121,9 +125,13 @@ int GP_FilterHLinearConvolution_Raw(const GP_Context *src,
 			                      GP_Pixel_CREATE_RGB888(r, g, b));
 		}
 
-		if (GP_ProgressCallbackReport(callback, y, dst->h, dst->w))
+		if (GP_ProgressCallbackReport(callback, y, dst->h, dst->w)) {
+			GP_TempAllocFree(temp);
 			return 1;
+		}
 	}
+			
+	GP_TempAllocFree(temp);
 
 	GP_ProgressCallbackDone(callback);
 	return 0;
@@ -146,13 +154,20 @@ int GP_FilterVLinearConvolution_Raw(const GP_Context *src,
 		ikernel[i] = kernel[i] * MUL + 0.5;
 
 	GP_DEBUG(1, "Vertical linear convolution kernel width %u "
-	            "rectangle %ux%u", kh, w_src, h_src);
+	            "offset %ix%i rectangle %ux%u",
+		    kh, x_src, y_src, w_src, h_src);
 
 	ikern_div = kern_div * MUL + 0.5;
+	
+	/* Create temporary buffers */
+	GP_TempAllocCreate(temp, 3 * size * sizeof(int));
+
+	int *R = GP_TempAllocGet(temp, size * sizeof(int));
+	int *G = GP_TempAllocGet(temp, size * sizeof(int));
+	int *B = GP_TempAllocGet(temp, size * sizeof(int));
 
 	/* Do vertical linear convolution */	
 	for (x = 0; x < (GP_Coord)w_src; x++) {
-		int R[size], G[size], B[size];
 		int xi = GP_MIN(x_src + x, (int)src->w - 1);
 		
 		/* Fetch the whole row */
@@ -162,7 +177,7 @@ int GP_FilterVLinearConvolution_Raw(const GP_Context *src,
 		i = 0;
 
 		/* Copy border pixel until the source image starts */
-		while (yi <= 0) {
+		while (yi <= 0 && i < size) {
 			R[i] = GP_Pixel_GET_R_RGB888(pix);
 			G[i] = GP_Pixel_GET_G_RGB888(pix);
 			B[i] = GP_Pixel_GET_B_RGB888(pix);
@@ -172,7 +187,7 @@ int GP_FilterVLinearConvolution_Raw(const GP_Context *src,
 		}
 
 		/* Use as much source image pixels as possible */
-		while (yi < (int)src->h) {
+		while (yi < (int)src->h && i < size) {
 			pix = GP_GetPixel_Raw_24BPP(src, xi, yi);
 
 			R[i] = GP_Pixel_GET_R_RGB888(pix);
@@ -216,10 +231,14 @@ int GP_FilterVLinearConvolution_Raw(const GP_Context *src,
 			                      GP_Pixel_CREATE_RGB888(r, g, b));
 		}
 		
-		if (GP_ProgressCallbackReport(callback, x, dst->w, dst->h))
+		if (GP_ProgressCallbackReport(callback, x, dst->w, dst->h)) {
+			GP_TempAllocFree(temp);
 			return 1;
+		}
 	}
 
+	GP_TempAllocFree(temp);
+	
 	GP_ProgressCallbackDone(callback);
 	return 0;
 }

http://repo.or.cz/w/gfxprim.git/commit/84d09f0d259d317aaddf552c9a4d8f2b0b640ef4

commit 84d09f0d259d317aaddf552c9a4d8f2b0b640ef4
Author: Cyril Hrubis <metan at ucw.cz>
Date:   Mon Jul 2 14:43:20 2012 +0200

    core: Add simple temporary buffer allocator.

diff --git a/include/core/GP_TempAlloc.h b/include/core/GP_TempAlloc.h
new file mode 100644
index 0000000..925b112
--- /dev/null
+++ b/include/core/GP_TempAlloc.h
@@ -0,0 +1,85 @@
+/*****************************************************************************
+ * This file is part of gfxprim library.                                     *
+ *                                                                           *
+ * Gfxprim is free software; you can redistribute it and/or                  *
+ * modify it under the terms of the GNU Lesser General Public                *
+ * License as published by the Free Software Foundation; either              *
+ * version 2.1 of the License, or (at your option) any later version.        *
+ *                                                                           *
+ * Gfxprim is distributed in the hope that it will be useful,                *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of            *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
+ * Lesser General Public License for more details.                           *
+ *                                                                           *
+ * You should have received a copy of the GNU Lesser General Public          *
+ * License along with gfxprim; if not, write to the Free Software            *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,                        *
+ * Boston, MA  02110-1301  USA                                               *
+ *                                                                           *
+ * Copyright (C) 2009-2012 Cyril Hrubis <metan at ucw.cz>                       *
+ *                                                                           *
+ *****************************************************************************/
+
+/*
+
+  Temporary block allocator implementation.
+
+  Creates pool for block allocation (small ones are done on the stack, bigger
+  using malloc).
+
+  The usage is:
+
+  // Creates new allocation pool
+  GP_TempAllocCrate(buf, 3 * 1024);
+
+  // Make use of it
+  int *R = GP_TempAllocGet(buf, 1024);
+  int *G = GP_TempAllocGet(buf, 1024);
+  int *B = GP_TempAllocGet(buf, 1024);
+
+  ...
+
+  // Free it
+  GP_TempAllocDestroy(buf);
+
+ */
+
+#ifndef CORE_GP_TEMP_ALLOC_H
+#define CORE_GP_TEMP_ALLOC_H
+
+#include <alloca.h>
+#include <stdlib.h>
+
+#include "core/GP_Common.h"
+
+#ifndef GP_ALLOCA_THRESHOLD
+# define GP_ALLOCA_THRESHOLD 2048
+#endif
+
+struct GP_TempAlloc {
+	void *buffer;
+	size_t pos;
+	size_t size;
+};
+
+#define GP_TEMP_ALLOC(size) ({                                        +	((size) > GP_ALLOCA_THRESHOLD) ? malloc(size) : alloca(size); +})
+
+#define GP_TempAllocCreate(name, bsize)                              +	struct GP_TempAlloc name = {.size = (bsize), .pos = 0,       +				    .buffer = GP_TEMP_ALLOC(bsize)};
+
+#define GP_TempAllocGet(self, bsize) ({           +	GP_ASSERT(self.pos + bsize <= self.size); +	size_t _pos = self.pos;                   +	self.pos += bsize;                        +	(void*)(((char*)(self.buffer)) + _pos);   +})
+
+#define GP_TempAllocFree(self) do {          +	if (self.size > GP_ALLOCA_THRESHOLD) +		free(self.buffer);           +} while (0)
+
+#endif /* CORE_GP_TEMP_ALLOC_H */

http://repo.or.cz/w/gfxprim.git/commit/7f869a1b5a909e54300e43194f804430c7bd3739

commit 7f869a1b5a909e54300e43194f804430c7bd3739
Author: Cyril Hrubis <metan at ucw.cz>
Date:   Sun Jul 1 23:32:47 2012 +0200

    demos: spiv: Update cpu counter for multithread filters.

diff --git a/demos/spiv/cpu_timer.c b/demos/spiv/cpu_timer.c
index 88455eb..6c26d61 100644
--- a/demos/spiv/cpu_timer.c
+++ b/demos/spiv/cpu_timer.c
@@ -23,26 +23,40 @@
 #include <stdio.h>
 #include "cpu_timer.h"
 
+static void to_time(int *sec, int *nsec, struct timespec *start,
+                    struct timespec *stop)
+{
+	if (stop->tv_nsec < start->tv_nsec) {
+		*sec  = stop->tv_sec - start->tv_sec - 1;
+		*nsec = stop->tv_nsec + 1000000000 - start->tv_nsec;
+	} else {
+		*sec  = stop->tv_sec  - start->tv_sec;
+		*nsec = stop->tv_nsec - start->tv_nsec;
+	}
+}
+
 void cpu_timer_start(struct cpu_timer *self, const char *name)
 {
 	self->name = name;
-	clock_gettime(CLOCK_THREAD_CPUTIME_ID, &self->t_start);
+	
+	clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &self->t_cpu_start);
+	clock_gettime(CLOCK_MONOTONIC, &self->t_real_start);
 }
 
 void cpu_timer_stop(struct cpu_timer *self)
 {
-	clock_gettime(CLOCK_THREAD_CPUTIME_ID, &self->t_stop);
+	clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &self->t_cpu_stop);
+	clock_gettime(CLOCK_MONOTONIC, &self->t_real_stop);
 
-	int sec;
-	int nsec;
+	int cpu_sec;
+	int cpu_nsec;
 
-	if (self->t_stop.tv_nsec < self->t_start.tv_nsec) {
-		sec  = self->t_stop.tv_sec - self->t_start.tv_sec - 1;
-		nsec = self->t_stop.tv_nsec + 1000000000 - self->t_start.tv_nsec;
-	} else {
-		sec  = self->t_stop.tv_sec  - self->t_start.tv_sec;
-		nsec = self->t_stop.tv_nsec - self->t_start.tv_nsec;
-	}
+	int real_sec;
+	int real_nsec;
+
+	to_time(&cpu_sec, &cpu_nsec, &self->t_cpu_start, &self->t_cpu_stop);
+	to_time(&real_sec, &real_nsec, &self->t_real_start, &self->t_real_stop);
 
-	printf("TIMER '%s' %i.%09i secn", self->name, sec, nsec);
+	printf("TIMER '%s' CPU=%i.%09is REAL=%i.%09isn", self->name,
+	       cpu_sec, cpu_nsec, real_sec, real_nsec);
 }
diff --git a/demos/spiv/cpu_timer.h b/demos/spiv/cpu_timer.h
index 1b41144..1d8c8e7 100644
--- a/demos/spiv/cpu_timer.h
+++ b/demos/spiv/cpu_timer.h
@@ -32,8 +32,10 @@
 #include <time.h>
 
 struct cpu_timer {
-	struct timespec t_start;
-	struct timespec t_stop;
+	struct timespec t_cpu_start;
+	struct timespec t_cpu_stop;
+	struct timespec t_real_start;
+	struct timespec t_real_stop;
 	const char *name;
 };
 

http://repo.or.cz/w/gfxprim.git/commit/b0e6247fbfb2a2741292723eeba71353d11bd322

commit b0e6247fbfb2a2741292723eeba71353d11bd322
Author: Cyril Hrubis <metan at ucw.cz>
Date:   Sun Jul 1 23:16:33 2012 +0200

    filters: GP_Linear.h remove the forgotten blur functions.

diff --git a/include/filters/GP_Linear.h b/include/filters/GP_Linear.h
index e6cf885..ae96e34 100644
--- a/include/filters/GP_Linear.h
+++ b/include/filters/GP_Linear.h
@@ -32,35 +32,6 @@
 #include "GP_Filter.h"
 
 /*
- * Gaussian blur
- *
- * The sigma parameters defines the blur radii in horizontal and vertical
- * direction.
- *
- * Internaly this is implemented as separable linear filter (calls vertical and
- * horizontal convolution with generated gaussian kernel).
- *
- * This variant could work in-place so it's perectly okay to call
- *
- * GP_FilterGaussianBlur_Raw(context, context, ...);
- */
-int GP_FilterGaussianBlur_Raw(const GP_Context *src, GP_Context *dst,
-                              float sigma_x, float sigma_y,
-                              GP_ProgressCallback *callback);
-/*
- * Gaussian blur.
- *
- * If dst is NULL, new bitmap is allocated.
- *
- * This variant could work in-place.
- *
- * Returns pointer to destination bitmap or NULL if allocation failed.
- */
-GP_Context *GP_FilterGaussianBlur(const GP_Context *src, GP_Context *dst,
-                                  float sigma_x, float sigma_y,
-                                  GP_ProgressCallback *callback);
-
-/*
  * Linear convolution.
  *
  * The kernel is array of kw * kh floats and is indexed as two directional

-----------------------------------------------------------------------

Summary of changes:
 demos/spiv/cpu_timer.c                             |   38 ++-
 demos/spiv/cpu_timer.h                             |    6 +-
 .../GP_Backend.c => include/core/GP_TempAlloc.h    |   83 ++++--
 include/filters/GP_Linear.h                        |   29 --
 libs/filters/GP_Linear.c                           |   49 +++-
 libs/filters/GP_LinearThreads.c                    |  301 ++++++++++++++++++++
 6 files changed, 419 insertions(+), 87 deletions(-)
 copy libs/backends/GP_Backend.c => include/core/GP_TempAlloc.h (55%)
 create mode 100644 libs/filters/GP_LinearThreads.c


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