src/gallium/targets/haiku-softpipe/GalliumContext.cpp - third_party/mesa - Git at Google

 /*
  * Copyright 2012, Haiku, Inc. All Rights Reserved.
  * Distributed under the terms of the MIT License.
  *
  * Authors:
  *		Artur Wyszynski, harakash@gmail.com
  *		Alexander von Gluck IV, kallisti5@unixzen.com
  */


 #include "GalliumContext.h"

 #include <stdio.h>

 #include "GLView.h"

 #include "bitmap_wrapper.h"

 #include "glapi/glapi.h"
 #include "pipe/p_format.h"
 //#include "state_tracker/st_cb_fbo.h"
 //#include "state_tracker/st_cb_flush.h"
 #include "state_tracker/st_context.h"
 #include "state_tracker/st_gl_api.h"
 #include "state_tracker/sw_winsys.h"
 #include "sw/hgl/hgl_sw_winsys.h"
 #include "util/u_atomic.h"
 #include "util/u_memory.h"
 #include "util/u_framebuffer.h"

 #include "target-helpers/inline_sw_helper.h"
 #include "target-helpers/inline_debug_helper.h"


 #ifdef DEBUG
 #	define TRACE(x...) printf("GalliumContext: " x)
 #	define CALLED() TRACE("CALLED: %s\n", __PRETTY_FUNCTION__)
 #else
 #	define TRACE(x...)
 #	define CALLED()
 #endif
 #define ERROR(x...) printf("GalliumContext: " x)


 GalliumContext::GalliumContext(ulong options)
 	:
 	fOptions(options),
 	fScreen(NULL),
 	fCurrentContext(0)
 {
 	CALLED();

 	// Make all contexts a known value
 	for (context_id i = 0; i < CONTEXT_MAX; i++)
 		fContext[i] = NULL;

 	CreateScreen();

 	(void) mtx_init(&fMutex, mtx_plain);
 }


 GalliumContext::~GalliumContext()
 {
 	CALLED();

 	// Destroy our contexts
 	Lock();
 	for (context_id i = 0; i < CONTEXT_MAX; i++)
 		DestroyContext(i);
 	Unlock();

 	mtx_destroy(&fMutex);

 	// TODO: Destroy fScreen
 }


 status_t
 GalliumContext::CreateScreen()
 {
 	CALLED();

 	// Allocate winsys and attach callback hooks
 	struct sw_winsys* winsys = hgl_create_sw_winsys();

 	if (!winsys) {
 		ERROR("%s: Couldn't allocate sw_winsys!\n", __func__);
 		return B_ERROR;
 	}

 	fScreen = sw_screen_create(winsys);

 	if (fScreen == NULL) {
 		ERROR("%s: Couldn't create screen!\n", __FUNCTION__);
 		FREE(winsys);
 		return B_ERROR;
 	}

 	debug_screen_wrap(fScreen);

 	const char* driverName = fScreen->get_name(fScreen);
 	ERROR("%s: Using %s driver.\n", __func__, driverName);

 	return B_OK;
 }


 context_id
 GalliumContext::CreateContext(Bitmap *bitmap)
 {
 	CALLED();

 	struct hgl_context* context = CALLOC_STRUCT(hgl_context);

 	if (!context) {
 		ERROR("%s: Couldn't create pipe context!\n", __FUNCTION__);
 		return 0;
 	}

 	// Set up the initial things our context needs
 	context->bitmap = bitmap;
 	context->colorSpace = get_bitmap_color_space(bitmap);
 	context->screen = fScreen;
 	context->draw = NULL;
 	context->read = NULL;
 	context->st = NULL;

 	// Create st_gl_api
 	context->api = hgl_create_st_api();
 	if (!context->api) {
 		ERROR("%s: Couldn't obtain Mesa state tracker API!\n", __func__);
 		return -1;
 	}

 	// Create state_tracker manager
 	context->manager = hgl_create_st_manager(context);

 	// Create state tracker visual
 	context->stVisual = hgl_create_st_visual(fOptions);

 	// Create state tracker framebuffers
 	context->draw = hgl_create_st_framebuffer(context);
 	context->read = hgl_create_st_framebuffer(context);

 	if (!context->draw || !context->read) {
 		ERROR("%s: Problem allocating framebuffer!\n", __func__);
 		FREE(context->stVisual);
 		return -1;
 	}

 	// Build state tracker attributes
 	struct st_context_attribs attribs;
 	memset(&attribs, 0, sizeof(attribs));
 	attribs.options.force_glsl_extensions_warn = false;
 	attribs.profile = ST_PROFILE_DEFAULT;
 	attribs.visual = *context->stVisual;
 	attribs.major = 1;
 	attribs.minor = 0;
 	//attribs.flags |= ST_CONTEXT_FLAG_DEBUG;

 	// Create context using state tracker api call
 	enum st_context_error result;
 	context->st = context->api->create_context(context->api, context->manager,
 		&attribs, &result, context->st);

 	if (!context->st) {
 		ERROR("%s: Couldn't create mesa state tracker context!\n",
 			__func__);
 		switch (result) {
 			case ST_CONTEXT_SUCCESS:
 				ERROR("%s: State tracker error: SUCCESS?\n", __func__);
 				break;
 			case ST_CONTEXT_ERROR_NO_MEMORY:
 				ERROR("%s: State tracker error: NO_MEMORY\n", __func__);
 				break;
 			case ST_CONTEXT_ERROR_BAD_API:
 				ERROR("%s: State tracker error: BAD_API\n", __func__);
 				break;
 			case ST_CONTEXT_ERROR_BAD_VERSION:
 				ERROR("%s: State tracker error: BAD_VERSION\n", __func__);
 				break;
 			case ST_CONTEXT_ERROR_BAD_FLAG:
 				ERROR("%s: State tracker error: BAD_FLAG\n", __func__);
 				break;
 			case ST_CONTEXT_ERROR_UNKNOWN_ATTRIBUTE:
 				ERROR("%s: State tracker error: BAD_ATTRIBUTE\n", __func__);
 				break;
 			case ST_CONTEXT_ERROR_UNKNOWN_FLAG:
 				ERROR("%s: State tracker error: UNKNOWN_FLAG\n", __func__);
 				break;
 		}

 		hgl_destroy_st_visual(context->stVisual);
 		FREE(context);
 		return -1;
 	}

 	assert(!context->st->st_manager_private);
 	context->st->st_manager_private = (void*)context;

 	struct st_context *stContext = (struct st_context*)context->st;

 	// Init Gallium3D Post Processing
 	// TODO: no pp filters are enabled yet through postProcessEnable
 	context->postProcess = pp_init(stContext->pipe, context->postProcessEnable,
 		stContext->cso_context);

 	context_id contextNext = -1;
 	Lock();
 	for (context_id i = 0; i < CONTEXT_MAX; i++) {
 		if (fContext[i] == NULL) {
 			fContext[i] = context;
 			contextNext = i;
 			break;
 		}
 	}
 	Unlock();

 	if (contextNext < 0) {
 		ERROR("%s: The next context is invalid... something went wrong!\n",
 			__func__);
 		//st_destroy_context(context->st);
 		FREE(context->stVisual);
 		FREE(context);
 		return -1;
 	}

 	TRACE("%s: context #%" B_PRIu64 " is the next available context\n",
 		__func__, contextNext);

 	return contextNext;
 }


 void
 GalliumContext::DestroyContext(context_id contextID)
 {
 	// fMutex should be locked *before* calling DestoryContext

 	// See if context is used
 	if (!fContext[contextID])
 		return;

 	if (fContext[contextID]->st) {
 		fContext[contextID]->st->flush(fContext[contextID]->st, 0, NULL);
 		fContext[contextID]->st->destroy(fContext[contextID]->st);
 	}

 	if (fContext[contextID]->postProcess)
 		pp_free(fContext[contextID]->postProcess);

 	// Delete state tracker framebuffer objects
 	if (fContext[contextID]->read)
 		delete fContext[contextID]->read;
 	if (fContext[contextID]->draw)
 		delete fContext[contextID]->draw;

 	if (fContext[contextID]->stVisual)
 		hgl_destroy_st_visual(fContext[contextID]->stVisual);

 	if (fContext[contextID]->manager)
 		hgl_destroy_st_manager(fContext[contextID]->manager);

 	FREE(fContext[contextID]);
 }


 status_t
 GalliumContext::SetCurrentContext(Bitmap *bitmap, context_id contextID)
 {
 	CALLED();

 	if (contextID < 0 || contextID > CONTEXT_MAX) {
 		ERROR("%s: Invalid context ID range!\n", __func__);
 		return B_ERROR;
 	}

 	Lock();
 	context_id oldContextID = fCurrentContext;
 	struct hgl_context* context = fContext[contextID];
 	Unlock();

 	if (!context) {
 		ERROR("%s: Invalid context provided (#%" B_PRIu64 ")!\n",
 			__func__, contextID);
 		return B_ERROR;
 	}

 	if (!bitmap) {
 		context->api->make_current(context->api, NULL, NULL, NULL);
 		return B_OK;
 	}

 	// Everything seems valid, lets set the new context.
 	fCurrentContext = contextID;

 	if (oldContextID > 0 && oldContextID != contextID) {
 		fContext[oldContextID]->st->flush(fContext[oldContextID]->st,
 			ST_FLUSH_FRONT, NULL);
 	}

 	// We need to lock and unlock framebuffers before accessing them
 	context->api->make_current(context->api, context->st, context->draw->stfbi,
 		context->read->stfbi);

 	//if (context->textures[ST_ATTACHMENT_BACK_LEFT]
 	//	&& context->textures[ST_ATTACHMENT_DEPTH_STENCIL]
 	//	&& context->postProcess) {
 	//	TRACE("Postprocessing textures...\n");
 	//	pp_init_fbos(context->postProcess,
 	//		context->textures[ST_ATTACHMENT_BACK_LEFT]->width0,
 	//		context->textures[ST_ATTACHMENT_BACK_LEFT]->height0);
 	//}

 	context->bitmap = bitmap;
 	//context->st->pipe->priv = context;

 	return B_OK;
 }


 status_t
 GalliumContext::SwapBuffers(context_id contextID)
 {
 	CALLED();

 	Lock();
 	struct hgl_context *context = fContext[contextID];
 	Unlock();

 	if (!context) {
 		ERROR("%s: context not found\n", __func__);
 		return B_ERROR;
 	}
 	context->st->flush(context->st, ST_FLUSH_FRONT, NULL);

 	struct hgl_buffer* buffer = hgl_st_framebuffer(context->draw->stfbi);
 	pipe_surface* surface = buffer->surface;
 	if (!surface) {
 		ERROR("%s: Invalid drawable surface!\n", __func__);
 		return B_ERROR;
 	}

 	fScreen->flush_frontbuffer(fScreen, surface->texture, 0, 0,
 		context->bitmap, NULL);

 	return B_OK;
 }


 bool
 GalliumContext::Validate(uint32 width, uint32 height)
 {
 	CALLED();

 	if (!fContext[fCurrentContext]) {
 		return false;
 	}

 	if (fContext[fCurrentContext]->width != width
 		|| fContext[fCurrentContext]->height != height) {
 		Invalidate(width, height);
 		return false;
 	}
 	return true;
 }


 void
 GalliumContext::Invalidate(uint32 width, uint32 height)
 {
 	CALLED();

 	assert(fContext[fCurrentContext]);

 	// Update st_context dimensions
 	fContext[fCurrentContext]->width = width;
 	fContext[fCurrentContext]->height = height;

 	// Is this the best way to invalidate?
 	p_atomic_inc(&fContext[fCurrentContext]->read->stfbi->stamp);
 	p_atomic_inc(&fContext[fCurrentContext]->draw->stfbi->stamp);
 }


 void
 GalliumContext::Lock()
 {
 	CALLED();
 	mtx_lock(&fMutex);
 }


 void
 GalliumContext::Unlock()
 {
 	CALLED();
 	mtx_unlock(&fMutex);
 }
 /* vim: set tabstop=4: */
	/*
	* Copyright 2012, Haiku, Inc. All Rights Reserved.
	* Distributed under the terms of the MIT License.
	*
	* Authors:
	* Artur Wyszynski, harakash@gmail.com
	* Alexander von Gluck IV, kallisti5@unixzen.com
	*/


	#include "GalliumContext.h"

	#include <stdio.h>

	#include "GLView.h"

	#include "bitmap_wrapper.h"

	#include "glapi/glapi.h"
	#include "pipe/p_format.h"
	//#include "state_tracker/st_cb_fbo.h"
	//#include "state_tracker/st_cb_flush.h"
	#include "state_tracker/st_context.h"
	#include "state_tracker/st_gl_api.h"
	#include "state_tracker/sw_winsys.h"
	#include "sw/hgl/hgl_sw_winsys.h"
	#include "util/u_atomic.h"
	#include "util/u_memory.h"
	#include "util/u_framebuffer.h"

	#include "target-helpers/inline_sw_helper.h"
	#include "target-helpers/inline_debug_helper.h"


	#ifdef DEBUG
	# define TRACE(x...) printf("GalliumContext: " x)
	# define CALLED() TRACE("CALLED: %s\n", __PRETTY_FUNCTION__)
	#else
	# define TRACE(x...)
	# define CALLED()
	#endif
	#define ERROR(x...) printf("GalliumContext: " x)


	GalliumContext::GalliumContext(ulong options)
	:
	fOptions(options),
	fScreen(NULL),
	fCurrentContext(0)
	{
	CALLED();

	// Make all contexts a known value
	for (context_id i = 0; i < CONTEXT_MAX; i++)
	fContext[i] = NULL;

	CreateScreen();

	(void) mtx_init(&fMutex, mtx_plain);
	}


	GalliumContext::~GalliumContext()
	{
	CALLED();

	// Destroy our contexts
	Lock();
	for (context_id i = 0; i < CONTEXT_MAX; i++)
	DestroyContext(i);
	Unlock();

	mtx_destroy(&fMutex);

	// TODO: Destroy fScreen
	}


	status_t
	GalliumContext::CreateScreen()
	{
	CALLED();

	// Allocate winsys and attach callback hooks
	struct sw_winsys* winsys = hgl_create_sw_winsys();

	if (!winsys) {
	ERROR("%s: Couldn't allocate sw_winsys!\n", __func__);
	return B_ERROR;
	}

	fScreen = sw_screen_create(winsys);

	if (fScreen == NULL) {
	ERROR("%s: Couldn't create screen!\n", __FUNCTION__);
	FREE(winsys);
	return B_ERROR;
	}

	debug_screen_wrap(fScreen);

	const char* driverName = fScreen->get_name(fScreen);
	ERROR("%s: Using %s driver.\n", __func__, driverName);

	return B_OK;
	}


	context_id
	GalliumContext::CreateContext(Bitmap *bitmap)
	{
	CALLED();

	struct hgl_context* context = CALLOC_STRUCT(hgl_context);

	if (!context) {
	ERROR("%s: Couldn't create pipe context!\n", __FUNCTION__);
	return 0;
	}

	// Set up the initial things our context needs
	context->bitmap = bitmap;
	context->colorSpace = get_bitmap_color_space(bitmap);
	context->screen = fScreen;
	context->draw = NULL;
	context->read = NULL;
	context->st = NULL;

	// Create st_gl_api
	context->api = hgl_create_st_api();
	if (!context->api) {
	ERROR("%s: Couldn't obtain Mesa state tracker API!\n", __func__);
	return -1;
	}

	// Create state_tracker manager
	context->manager = hgl_create_st_manager(context);

	// Create state tracker visual
	context->stVisual = hgl_create_st_visual(fOptions);

	// Create state tracker framebuffers
	context->draw = hgl_create_st_framebuffer(context);
	context->read = hgl_create_st_framebuffer(context);

	if (!context->draw \|\| !context->read) {
	ERROR("%s: Problem allocating framebuffer!\n", __func__);
	FREE(context->stVisual);
	return -1;
	}

	// Build state tracker attributes
	struct st_context_attribs attribs;
	memset(&attribs, 0, sizeof(attribs));
	attribs.options.force_glsl_extensions_warn = false;
	attribs.profile = ST_PROFILE_DEFAULT;
	attribs.visual = *context->stVisual;
	attribs.major = 1;
	attribs.minor = 0;
	//attribs.flags \|= ST_CONTEXT_FLAG_DEBUG;

	// Create context using state tracker api call
	enum st_context_error result;
	context->st = context->api->create_context(context->api, context->manager,
	&attribs, &result, context->st);

	if (!context->st) {
	ERROR("%s: Couldn't create mesa state tracker context!\n",
	__func__);
	switch (result) {
	case ST_CONTEXT_SUCCESS:
	ERROR("%s: State tracker error: SUCCESS?\n", __func__);
	break;
	case ST_CONTEXT_ERROR_NO_MEMORY:
	ERROR("%s: State tracker error: NO_MEMORY\n", __func__);
	break;
	case ST_CONTEXT_ERROR_BAD_API:
	ERROR("%s: State tracker error: BAD_API\n", __func__);
	break;
	case ST_CONTEXT_ERROR_BAD_VERSION:
	ERROR("%s: State tracker error: BAD_VERSION\n", __func__);
	break;
	case ST_CONTEXT_ERROR_BAD_FLAG:
	ERROR("%s: State tracker error: BAD_FLAG\n", __func__);
	break;
	case ST_CONTEXT_ERROR_UNKNOWN_ATTRIBUTE:
	ERROR("%s: State tracker error: BAD_ATTRIBUTE\n", __func__);
	break;
	case ST_CONTEXT_ERROR_UNKNOWN_FLAG:
	ERROR("%s: State tracker error: UNKNOWN_FLAG\n", __func__);
	break;
	}

	hgl_destroy_st_visual(context->stVisual);
	FREE(context);
	return -1;
	}

	assert(!context->st->st_manager_private);
	context->st->st_manager_private = (void*)context;

	struct st_context stContext = (struct st_context)context->st;

	// Init Gallium3D Post Processing
	// TODO: no pp filters are enabled yet through postProcessEnable
	context->postProcess = pp_init(stContext->pipe, context->postProcessEnable,
	stContext->cso_context);

	context_id contextNext = -1;
	Lock();
	for (context_id i = 0; i < CONTEXT_MAX; i++) {
	if (fContext[i] == NULL) {
	fContext[i] = context;
	contextNext = i;
	break;
	}
	}
	Unlock();

	if (contextNext < 0) {
	ERROR("%s: The next context is invalid... something went wrong!\n",
	__func__);
	//st_destroy_context(context->st);
	FREE(context->stVisual);
	FREE(context);
	return -1;
	}

	TRACE("%s: context #%" B_PRIu64 " is the next available context\n",
	__func__, contextNext);

	return contextNext;
	}


	void
	GalliumContext::DestroyContext(context_id contextID)
	{
	// fMutex should be locked before calling DestoryContext

	// See if context is used
	if (!fContext[contextID])
	return;

	if (fContext[contextID]->st) {
	fContext[contextID]->st->flush(fContext[contextID]->st, 0, NULL);
	fContext[contextID]->st->destroy(fContext[contextID]->st);
	}

	if (fContext[contextID]->postProcess)
	pp_free(fContext[contextID]->postProcess);

	// Delete state tracker framebuffer objects
	if (fContext[contextID]->read)
	delete fContext[contextID]->read;
	if (fContext[contextID]->draw)
	delete fContext[contextID]->draw;

	if (fContext[contextID]->stVisual)
	hgl_destroy_st_visual(fContext[contextID]->stVisual);

	if (fContext[contextID]->manager)
	hgl_destroy_st_manager(fContext[contextID]->manager);

	FREE(fContext[contextID]);
	}


	status_t
	GalliumContext::SetCurrentContext(Bitmap *bitmap, context_id contextID)
	{
	CALLED();

	if (contextID < 0 \|\| contextID > CONTEXT_MAX) {
	ERROR("%s: Invalid context ID range!\n", __func__);
	return B_ERROR;
	}

	Lock();
	context_id oldContextID = fCurrentContext;
	struct hgl_context* context = fContext[contextID];
	Unlock();

	if (!context) {
	ERROR("%s: Invalid context provided (#%" B_PRIu64 ")!\n",
	__func__, contextID);
	return B_ERROR;
	}

	if (!bitmap) {
	context->api->make_current(context->api, NULL, NULL, NULL);
	return B_OK;
	}

	// Everything seems valid, lets set the new context.
	fCurrentContext = contextID;

	if (oldContextID > 0 && oldContextID != contextID) {
	fContext[oldContextID]->st->flush(fContext[oldContextID]->st,
	ST_FLUSH_FRONT, NULL);
	}

	// We need to lock and unlock framebuffers before accessing them
	context->api->make_current(context->api, context->st, context->draw->stfbi,
	context->read->stfbi);

	//if (context->textures[ST_ATTACHMENT_BACK_LEFT]
	// && context->textures[ST_ATTACHMENT_DEPTH_STENCIL]
	// && context->postProcess) {
	// TRACE("Postprocessing textures...\n");
	// pp_init_fbos(context->postProcess,
	// context->textures[ST_ATTACHMENT_BACK_LEFT]->width0,
	// context->textures[ST_ATTACHMENT_BACK_LEFT]->height0);
	//}

	context->bitmap = bitmap;
	//context->st->pipe->priv = context;

	return B_OK;
	}


	status_t
	GalliumContext::SwapBuffers(context_id contextID)
	{
	CALLED();

	Lock();
	struct hgl_context *context = fContext[contextID];
	Unlock();

	if (!context) {
	ERROR("%s: context not found\n", __func__);
	return B_ERROR;
	}
	context->st->flush(context->st, ST_FLUSH_FRONT, NULL);

	struct hgl_buffer* buffer = hgl_st_framebuffer(context->draw->stfbi);
	pipe_surface* surface = buffer->surface;
	if (!surface) {
	ERROR("%s: Invalid drawable surface!\n", __func__);
	return B_ERROR;
	}

	fScreen->flush_frontbuffer(fScreen, surface->texture, 0, 0,
	context->bitmap, NULL);

	return B_OK;
	}


	bool
	GalliumContext::Validate(uint32 width, uint32 height)
	{
	CALLED();

	if (!fContext[fCurrentContext]) {
	return false;
	}

	if (fContext[fCurrentContext]->width != width
	\|\| fContext[fCurrentContext]->height != height) {
	Invalidate(width, height);
	return false;
	}
	return true;
	}


	void
	GalliumContext::Invalidate(uint32 width, uint32 height)
	{
	CALLED();

	assert(fContext[fCurrentContext]);

	// Update st_context dimensions
	fContext[fCurrentContext]->width = width;
	fContext[fCurrentContext]->height = height;

	// Is this the best way to invalidate?
	p_atomic_inc(&fContext[fCurrentContext]->read->stfbi->stamp);
	p_atomic_inc(&fContext[fCurrentContext]->draw->stfbi->stamp);
	}


	void
	GalliumContext::Lock()
	{
	CALLED();
	mtx_lock(&fMutex);
	}


	void
	GalliumContext::Unlock()
	{
	CALLED();
	mtx_unlock(&fMutex);
	}
	/* vim: set tabstop=4: */