[Gfxprim] [repo.or.cz] gfxprim.git branch master updated: 274f579cdeaeeb021e9650e6022c01bb874f7fed

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commit 274f579cdeaeeb021e9650e6022c01bb874f7fed Author: Cyril Hrubis metan@ucw.cz Date: Sun Jul 8 23:24:44 2012 +0200

filters,core: Update in the threads interface.

diff --git a/include/core/GP_ProgressCallback.h b/include/core/GP_ProgressCallback.h index 818bafa..e944154 100644 --- a/include/core/GP_ProgressCallback.h +++ b/include/core/GP_ProgressCallback.h @@ -24,10 +24,11 @@

Progress callback implementation.

- Progress callbacks serves two purposes + Progress callbacks serves following purposes:

- ability to visibly show algorithm progress - ability to correctly abort operation in the middle of processing + - ability to override default number of threads to use for the operation

*/

@@ -42,8 +43,20 @@ */ typedef struct GP_ProgressCallback { float percentage; + int (*callback)(struct GP_ProgressCallback *self); void *priv; + + /* + * Number of threads to use (if supported). This setting could be used + * to override the default number of threads as returned by + * GP_NrThreads(). + * + * 0 == use number returned from GP_NrThreads(). + * + * >= 1 use exactly n threads + */ + unsigned int threads; } GP_ProgressCallback;

static inline int GP_ProgressCallbackReport(GP_ProgressCallback *callback, diff --git a/include/core/GP_Threads.h b/include/core/GP_Threads.h index 948f278..185ce06 100644 --- a/include/core/GP_Threads.h +++ b/include/core/GP_Threads.h @@ -35,12 +35,31 @@ #include "GP_Types.h"

/* - * Returns an optimal number of threads for a given image size on a particular - * machine. Most of the time, if the image is not too small, this function - * returns number of processors as seen by the operating system. + * Sets default number of threads the library uses + * (changes the behavior of GP_NrThreads()). + * + * 0 == auto + * Most of the time, if the image is not too small, this makes + * the filter run number of processors (as seen by the operating system) + * threads. + * + * 1 == one thread + * Everything runs in exactly one thread. This is default value. + * + * >= 2 + * Runs exactly n threads unless the image is too small. + * + * This value may also be overriden by GP_THREADS enviroment variable. + * + * Moreover the value may changed for a single call by settings in progres + * callback structure. */ -unsigned int GP_NrThreads(GP_Size w, GP_Size h); +void GP_NrThreadsSet(unsigned int nr);

+/* + * Returns a number of threads to use. + */ +unsigned int GP_NrThreads(GP_Size w, GP_Size h, GP_ProgressCallback *callback);

/* * Multithreaded progress callback priv data guarded by a mutex. diff --git a/libs/core/GP_Threads.c b/libs/core/GP_Threads.c index 638f27b..ff59d75 100644 --- a/libs/core/GP_Threads.c +++ b/libs/core/GP_Threads.c @@ -21,26 +21,63 @@ *****************************************************************************/

#include <unistd.h> +#include <stdlib.h>

#include "GP_Common.h" #include "GP_Debug.h"

#include "GP_Threads.h"

-unsigned int GP_NrThreads(GP_Size w, GP_Size h) +static unsigned int nr_threads = 1; + +unsigned int GP_NrThreads(GP_Size w, GP_Size h, GP_ProgressCallback *callback) { - int count = sysconf(_SC_NPROCESSORS_ONLN); - int threads = GP_MIN(count, (int)(w * h / 1024) + 1); + int count, threads; + char *env; + + /* Try to override nr_threads from the callback first */ + if (callback != NULL && callback->threads) { + GP_DEBUG(1, "Overriding nr_threads from callback to %i", + callback->threads); + nr_threads = callback->threads; + } else { + /* Then try to override it from the enviroment variable */ + env = getenv("GP_THREADS"); + + if (env) { + nr_threads = atoi(env); + GP_DEBUG(1, "Using GP_THREADS=%u from enviroment " + "variable", nr_threads); + } + }

- if (count < -1) + if (nr_threads == 0) { + count = sysconf(_SC_NPROCESSORS_ONLN); + GP_DEBUG(1, "Found %i CPUs", count); + } else { + count = nr_threads; + GP_DEBUG(1, "Using nr_threads=%i", count); + } + + threads = GP_MIN(count, (int)(w * h / 1024) + 1); + + /* Call to the sysconf may return -1 if unsupported */ + if (threads < -1) threads = 1;

- GP_DEBUG(1, "Found %u CPUs size %ux%u runnig %u threads", + GP_DEBUG(1, "Max threads %i image size %ux%u runnig %u threads", count, w, h, threads);

return threads; }

+void GP_NrThreadsSet(unsigned int nr) +{ + nr_threads = nr; + + GP_DEBUG(1, "Setting default number of threads to %u", nr); +} + int GP_ProgressCallbackMP(GP_ProgressCallback *self) { struct GP_ProgressCallbackMPPriv *priv = self->priv; diff --git a/libs/filters/GP_LinearThreads.c b/libs/filters/GP_LinearThreads.c index 9a2aa43..2ab625e 100644 --- a/libs/filters/GP_LinearThreads.c +++ b/libs/filters/GP_LinearThreads.c @@ -60,11 +60,14 @@ static void *linear_convolution(void *arg)

int GP_FilterHConvolutionMP_Raw(const GP_ConvolutionParams *params) { - int i, t = GP_NrThreads(params->w_src, params->h_src); + int i, t = GP_NrThreads(params->w_src, params->h_src, params->callback);

if (t == 1) return GP_FilterHConvolution_Raw(params);

+ GP_ASSERT(params->src != params->dst, + "Multithreaded convolution can't work in-place"); + GP_PROGRESS_CALLBACK_MP(callback_mp, params->callback);

/* Run t threads */ @@ -105,11 +108,14 @@ int GP_FilterHConvolutionMP_Raw(const GP_ConvolutionParams *params)

int GP_FilterVConvolutionMP_Raw(const GP_ConvolutionParams *params) { - int i, t = GP_NrThreads(params->w_src, params->h_src); + int i, t = GP_NrThreads(params->w_src, params->h_src, params->callback);

if (t == 1) return GP_FilterVConvolution_Raw(params); + GP_ASSERT(params->src != params->dst, + "Multithreaded convolution can't work in-place"); + GP_PROGRESS_CALLBACK_MP(callback_mp, params->callback); /* Run t threads */ @@ -149,10 +155,13 @@ int GP_FilterVConvolutionMP_Raw(const GP_ConvolutionParams *params)

int GP_FilterConvolutionMP_Raw(const GP_ConvolutionParams *params) { - int i, t = GP_NrThreads(params->w_src, params->h_src); + int i, t = GP_NrThreads(params->w_src, params->h_src, params->callback);

if (t == 1) return GP_FilterConvolution_Raw(params); + + GP_ASSERT(params->src != params->dst, + "Multithreaded convolution can't work in-place");

GP_PROGRESS_CALLBACK_MP(callback_mp, params->callback);

http://repo.or.cz/w/gfxprim.git/commit/5355f8de46d21c12f260b08c4774a13993db9...

commit 5355f8de46d21c12f260b08c4774a13993db9701 Author: Cyril Hrubis metan@ucw.cz Date: Sun Jul 8 13:12:52 2012 +0200

filters: Simplify multithreaded filters.

* Move the common code to the core

* Pack the linear convolution paraters into the structure by default.

diff --git a/include/core/GP_ProgressCallback.h b/include/core/GP_ProgressCallback.h index 72857ce..818bafa 100644 --- a/include/core/GP_ProgressCallback.h +++ b/include/core/GP_ProgressCallback.h @@ -69,4 +69,10 @@ static inline void GP_ProgressCallbackDone(GP_ProgressCallback *callback) callback->callback(callback); }

+#define GP_PROGRESS_CALLBACK(name, pcallback, ppriv) + GP_ProgressCallback name = { + .callback = pcallback, + .priv = ppriv, + }; + #endif /* CORE_GP_PROGRESSCALBACK_H */ diff --git a/include/filters/GP_LinearThreads.h b/include/core/GP_Threads.h similarity index 51% copy from include/filters/GP_LinearThreads.h copy to include/core/GP_Threads.h index 76c46db..948f278 100644 --- a/include/filters/GP_LinearThreads.h +++ b/include/core/GP_Threads.h @@ -20,33 +20,62 @@ * * *****************************************************************************/

-#ifndef FILTERS_GP_LINEAR_THREADS_H -#define FILTERS_GP_LINEAR_THREADS_H - -#include "GP_Filter.h" - -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); - -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 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); - -#endif /* FILTERS_GP_LINEAR_THREADS_H */ + /* + + A code to ease multithreaded filters and more. + + */ + +#ifndef GP_THREADS_H +#define GP_THREADS_H + +#include <pthread.h> + +#include "GP_ProgressCallback.h" +#include "GP_Types.h" + +/* + * Returns an optimal number of threads for a given image size on a particular + * machine. Most of the time, if the image is not too small, this function + * returns number of processors as seen by the operating system. + */ +unsigned int GP_NrThreads(GP_Size w, GP_Size h); + + +/* + * Multithreaded progress callback priv data guarded by a mutex. + */ +struct GP_ProgressCallbackMPPriv { + float max; + int abort; + pthread_mutex_t mutex; + GP_ProgressCallback *orig_callback; +}; + +/* + * Creates and initalizes a on-the-stack progress callback + * + * The intended usage is: + * + * GP_PROGRESS_CALLBACK(callback_mp, orig_callback); + * + * ... + * + * for n threads: + * run_filter(..., callback ? &callback_mp : NULL); + */ +#define GP_PROGRESS_CALLBACK_MP(name, callback) + struct GP_ProgressCallbackMPPriv name_priv = { + .max = 0, + .abort = 0, + .mutex = PTHREAD_MUTEX_INITIALIZER, + .orig_callback = callback, + }; + GP_PROGRESS_CALLBACK(name, GP_ProgressCallbackMP, &name_priv); + +/* + * Multithreaded callback function itself. + */ +int GP_ProgressCallbackMP(GP_ProgressCallback *self); + +#endif /* GP_THREADS_H */ diff --git a/include/filters/GP_Linear.h b/include/filters/GP_Linear.h index ae96e34..fe938f5 100644 --- a/include/filters/GP_Linear.h +++ b/include/filters/GP_Linear.h @@ -53,8 +53,6 @@ * kw = kh = 3 * * kern_div = 9 - * - * This function works also in-place. */ int GP_FilterLinearConvolution_Raw(const GP_Context *src, GP_Coord x_src, GP_Coord y_src, @@ -109,4 +107,59 @@ int GP_FilterVHLinearConvolution_Raw(const GP_Context *src, */ void GP_FilterKernelPrint_Raw(float kernel[], int kw, int kh, float kern_div);

+ + +typedef struct GP_ConvolutionParams { + 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 kw; + unsigned int kh; + float kern_div; + + GP_ProgressCallback *callback; +} GP_ConvolutionParams; + +static inline int GP_FilterConvolution_Raw(const struct GP_ConvolutionParams *params) +{ + return GP_FilterLinearConvolution_Raw(params->src, params->x_src, + params->y_src, params->w_src, + params->h_src, params->dst, + params->x_dst, params->y_dst, + params->kernel, params->kw, + params->kh, params->kern_div, + params->callback); +} + +static inline int GP_FilterVConvolution_Raw(const struct GP_ConvolutionParams *params) +{ + + return GP_FilterVLinearConvolution_Raw(params->src, params->x_src, + params->y_src, params->w_src, + params->h_src, params->dst, + params->x_dst, params->y_dst, + params->kernel, params->kh, + params->kern_div, + params->callback); +} + +static inline int GP_FilterHConvolution_Raw(const struct GP_ConvolutionParams *params) +{ + return GP_FilterHLinearConvolution_Raw(params->src, params->x_src, + params->y_src, params->w_src, + params->h_src, params->dst, + params->x_dst, params->y_dst, + params->kernel, params->kw, + params->kern_div, + params->callback); +} + #endif /* FILTERS_GP_LINEAR_H */ diff --git a/include/filters/GP_LinearThreads.h b/include/filters/GP_LinearThreads.h index 76c46db..ee4d0fc 100644 --- a/include/filters/GP_LinearThreads.h +++ b/include/filters/GP_LinearThreads.h @@ -24,29 +24,13 @@ #define FILTERS_GP_LINEAR_THREADS_H

#include "GP_Filter.h" +#include "GP_Linear.h"

-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); +int GP_FilterConvolutionMP_Raw(const GP_ConvolutionParams *params);

-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 GP_FilterVConvolutionMP_Raw(const GP_ConvolutionParams *params); + +int GP_FilterHConvolutionMP_Raw(const GP_ConvolutionParams *params);

-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);

#endif /* FILTERS_GP_LINEAR_THREADS_H */ diff --git a/include/core/GP_ProgressCallback.h b/libs/core/GP_Threads.c similarity index 58% copy from include/core/GP_ProgressCallback.h copy to libs/core/GP_Threads.c index 72857ce..638f27b 100644 --- a/include/core/GP_ProgressCallback.h +++ b/libs/core/GP_Threads.c @@ -16,57 +16,58 @@ * Foundation, Inc., 51 Franklin Street, Fifth Floor, * * Boston, MA 02110-1301 USA * * * - * Copyright (C) 2009-2011 Cyril Hrubis metan@ucw.cz * + * Copyright (C) 2009-2012 Cyril Hrubis metan@ucw.cz * * * *****************************************************************************/

-/* +#include <unistd.h>

- Progress callback implementation. +#include "GP_Common.h" +#include "GP_Debug.h"

- Progress callbacks serves two purposes +#include "GP_Threads.h"

- - ability to visibly show algorithm progress - - ability to correctly abort operation in the middle of processing +unsigned int GP_NrThreads(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;

-#ifndef CORE_GP_PROGRESSCALLBACK_H -#define CORE_GP_PROGRESSCALLBACK_H + GP_DEBUG(1, "Found %u CPUs size %ux%u runnig %u threads", + count, w, h, threads);

-/* - * Progress callback - * - * Non zero return value from callback will abort current operation - * free memory and return NULL from filter/loader... - */ -typedef struct GP_ProgressCallback { - float percentage; - int (*callback)(struct GP_ProgressCallback *self); - void *priv; -} GP_ProgressCallback; + return threads; +}

-static inline int GP_ProgressCallbackReport(GP_ProgressCallback *callback, - unsigned int val, unsigned int max, - unsigned int mul __attribute__((unused))) +int GP_ProgressCallbackMP(GP_ProgressCallback *self) { - if (callback == NULL) - return 0; + struct GP_ProgressCallbackMPPriv *priv = self->priv;

- if (val % 100) + /* + * 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; + }

- callback->percentage = 100.00 * val / max; - return callback->callback(callback); -} + /* Compute max value for the percentage */ + priv->orig_callback->percentage = GP_MAX(self->percentage, priv->max); + priv->max = priv->orig_callback->percentage;

-static inline void GP_ProgressCallbackDone(GP_ProgressCallback *callback) -{ - if (callback == NULL) - return; + /* Call the original callback */ + int ret = priv->orig_callback->callback(priv->orig_callback); - callback->percentage = 100; - callback->callback(callback); -} + /* Turn on abort flag if callback returned nonzero */ + if (ret) + priv->abort = 1;

-#endif /* CORE_GP_PROGRESSCALBACK_H */ + pthread_mutex_unlock(&priv->mutex); + + return ret; +} diff --git a/libs/filters/GP_Blur.c b/libs/filters/GP_Blur.c index 22b99fd..21aa315 100644 --- a/libs/filters/GP_Blur.c +++ b/libs/filters/GP_Blur.c @@ -25,6 +25,7 @@ #include "core/GP_Debug.h"

#include "GP_Linear.h" +#include "GP_LinearThreads.h"

#include "GP_Blur.h"

@@ -92,10 +93,24 @@ int GP_FilterGaussianBlur_Raw(const GP_Context *src, GP_Context *dst, if (sigma_x > 0) { float kernel_x[size_x]; float sum = gaussian_kernel_init(sigma_x, kernel_x); - - if (GP_FilterHLinearConvolution_Raw(src, 0, 0, src->w, src->h, - dst, 0, 0, kernel_x, size_x, - sum, new_callback)) + + GP_ConvolutionParams params = { + .src = src, + .x_src = 0, + .y_src = 0, + .w_src = src->w, + .h_src = src->h, + .dst = dst, + .x_dst = 0, + .y_dst = 0, + .kernel = kernel_x, + .kw = size_x, + .kh = 1, + .kern_div = sum, + .callback = new_callback, + }; + + if (GP_FilterHConvolutionMP_Raw(&params)) return 1; } @@ -107,9 +122,23 @@ int GP_FilterGaussianBlur_Raw(const GP_Context *src, GP_Context *dst, float kernel_y[size_y]; float sum = gaussian_kernel_init(sigma_y, kernel_y); - if (GP_FilterVLinearConvolution_Raw(dst, 0, 0, src->w, src->h, - dst, 0, 0, kernel_y, size_y, - sum, new_callback)) + GP_ConvolutionParams params = { + .src = src, + .x_src = 0, + .y_src = 0, + .w_src = src->w, + .h_src = src->h, + .dst = dst, + .x_dst = 0, + .y_dst = 0, + .kernel = kernel_y, + .kw = 1, + .kh = size_y, + .kern_div = sum, + .callback = new_callback, + }; + + if (GP_FilterVConvolutionMP_Raw(&params)) return 1; }

diff --git a/libs/filters/GP_Edge.c b/libs/filters/GP_Edge.c index a9a42a6..349c36b 100644 --- a/libs/filters/GP_Edge.c +++ b/libs/filters/GP_Edge.c @@ -57,24 +57,54 @@ static int prewitt(const GP_Context *src, GP_Context *dx, GP_Context *dy, static int sobel(const GP_Context *src, GP_Context *dx, GP_Context *dy, GP_ProgressCallback *callback) { - float x_kern[] = { + float dx_kern[] = { -1, 0, 1, -2, 0, 2, -1, 0, 1, };

- if (GP_FilterLinearConvolution_Raw(src, 0, 0, src->w, src->h, - dx, 0, 0, x_kern, 3, 3, 32, callback)) + GP_ConvolutionParams dx_conv = { + .src = src, + .x_src = 0, + .y_src = 0, + .w_src = src->w, + .h_src = src->h, + .dst = dx, + .x_dst = 0, + .y_dst = 0, + .kernel = dx_kern, + .kw = 3, + .kh = 3, + .kern_div = 1, + .callback = callback, + }; + + if (GP_FilterConvolution_Raw(&dx_conv)) return 1; - float y_kern[] = { + float dy_kern[] = { -1, -2, -1, 0, 0, 0, 1, 2, 1, }; + + GP_ConvolutionParams dy_conv = { + .src = src, + .x_src = 0, + .y_src = 0, + .w_src = src->w, + .h_src = src->h, + .dst = dy, + .x_dst = 0, + .y_dst = 0, + .kernel = dy_kern, + .kw = 3, + .kh = 3, + .kern_div = 1, + .callback = callback, + };

- if (GP_FilterLinearConvolution_Raw(src, 0, 0, src->w, src->h, - dy, 0, 0, y_kern, 3, 3, 32, callback)) + if (GP_FilterConvolution_Raw(&dy_conv)) return 1;

return 0; @@ -133,7 +163,7 @@ static int edge_detect(const GP_Context *src, GP_PutPixel_Raw_24BPP(dx, i, j, GP_Pixel_CREATE_RGB888(RE, GE, BE)); - + if (Rx != 0 && Ry != 0) RPhi = ((atan2(Rx, Ry) + M_PI) * 255)/(2*M_PI); else diff --git a/libs/filters/GP_LinearThreads.c b/libs/filters/GP_LinearThreads.c index 5ccdebc..9a2aa43 100644 --- a/libs/filters/GP_LinearThreads.c +++ b/libs/filters/GP_LinearThreads.c @@ -26,189 +26,65 @@

#include "core/GP_Common.h" #include "core/GP_Debug.h" +#include "core/GP_Threads.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; -} - -/* - * 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) +static void *h_linear_convolution(void *arg) { - struct callback_priv *priv = self->priv; + struct GP_ConvolutionParams *params = arg;

- /* 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); + long ret = GP_FilterHConvolution_Raw(params); - /* 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); + return (void*)ret; }

-static void callback_priv_exit(struct callback_priv *priv) +static void *v_linear_convolution(void *arg) { - 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; + struct GP_ConvolutionParams *params = arg; - 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; + long ret = GP_FilterVConvolution_Raw(params);

- 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) +static void *linear_convolution(void *arg) { - struct convolution *conv = arg; - - long ret; + struct GP_ConvolutionParams *params = arg; + + long ret = GP_FilterConvolution_Raw(params);

- 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 GP_FilterHConvolutionMP_Raw(const GP_ConvolutionParams *params) { - 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); - } + int i, t = GP_NrThreads(params->w_src, params->h_src); + + if (t == 1) + return GP_FilterHConvolution_Raw(params);

- /* 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}; + GP_PROGRESS_CALLBACK_MP(callback_mp, params->callback);

/* Run t threads */ - int i; pthread_t threads[t]; - struct convolution convs[t]; - GP_Size h = h_src/t; + struct GP_ConvolutionParams convs[t]; + GP_Size h = params->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_Coord y_src_2 = params->y_src + i * h; + GP_Coord y_dst_2 = params->y_dst + i * h; GP_Size h_src_2 = h; if (i == t - 1) - h_src_2 = h_src - i * h; + h_src_2 = params->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); + convs[i] = *params; + convs[i].y_src = y_src_2; + convs[i].h_src = h_src_2; + convs[i].y_dst = y_dst_2; + convs[i].callback = params->callback ? &callback_mp : NULL;

pthread_create(&threads[i], NULL, h_linear_convolution, &convs[i]); } @@ -223,52 +99,37 @@ int GP_FilterHLinearConvolutionMP_Raw(const GP_Context *src, 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 GP_FilterVConvolutionMP_Raw(const GP_ConvolutionParams *params) { - 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); - } + int i, t = GP_NrThreads(params->w_src, params->h_src); + + if (t == 1) + return GP_FilterVConvolution_Raw(params); - /* 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}; + GP_PROGRESS_CALLBACK_MP(callback_mp, params->callback); - int i; + /* Run t threads */ pthread_t threads[t]; - struct convolution convs[t]; - GP_Size h = h_src/t; + struct GP_ConvolutionParams convs[t]; + GP_Size h = params->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_Coord y_src_2 = params->y_src + i * h; + GP_Coord y_dst_2 = params->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); + h_src_2 = params->h_src - i * h; + + convs[i] = *params; + convs[i].y_src = y_src_2; + convs[i].h_src = h_src_2; + convs[i].y_dst = y_dst_2; + convs[i].callback = params->callback ? &callback_mp : NULL; pthread_create(&threads[i], NULL, v_linear_convolution, &convs[i]); } @@ -282,19 +143,49 @@ int GP_FilterVLinearConvolutionMP_Raw(const GP_Context *src, 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) + +int GP_FilterConvolutionMP_Raw(const GP_ConvolutionParams *params) { + int i, t = GP_NrThreads(params->w_src, params->h_src); + + if (t == 1) + return GP_FilterConvolution_Raw(params); + + GP_PROGRESS_CALLBACK_MP(callback_mp, params->callback); + + /* Run t threads */ + pthread_t threads[t]; + struct GP_ConvolutionParams convs[t]; + GP_Size h = params->h_src/t; + + for (i = 0; i < t; i++) { + GP_Coord y_src_2 = params->y_src + i * h; + GP_Coord y_dst_2 = params->y_dst + i * h; + GP_Size h_src_2 = h; + + if (i == t - 1) + h_src_2 = params->h_src - i * h; + + convs[i] = *params; + convs[i].y_src = y_src_2; + convs[i].h_src = h_src_2; + convs[i].y_dst = y_dst_2; + convs[i].callback = params->callback ? &callback_mp : NULL; + + pthread_create(&threads[i], NULL, linear_convolution, &convs[i]); + } + + int ret = 0; + + for (i = 0; i < t; i++) { + long r; + pthread_join(threads[i], (void*)&r); + + ret |= (int)r; + } + + return ret; } -*/

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

Summary of changes: include/core/GP_ProgressCallback.h | 21 +++- include/core/GP_Threads.h | 100 ++++++++++++ include/filters/GP_Linear.h | 57 +++++++- include/filters/GP_LinearThreads.h | 26 +--- libs/core/GP_Threads.c | 110 ++++++++++++++ libs/filters/GP_Blur.c | 43 +++++- libs/filters/GP_Edge.c | 44 +++++- libs/filters/GP_LinearThreads.c | 290 ++++++++++++------------------------ 8 files changed, 458 insertions(+), 233 deletions(-) create mode 100644 include/core/GP_Threads.h create mode 100644 libs/core/GP_Threads.c

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