1 files changed, 273 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_context.c b/src/mesa/drivers/dri/nouveau/nouveau_context.c
new file mode 100644
index 0000000000..b87b8dbdd0
--- /dev/null
+++ b/src/mesa/drivers/dri/nouveau/nouveau_context.c
@@ -0,0 +1,273 @@
+/*
+ * Copyright (C) 2009 Francisco Jerez.
+ * All Rights Reserved.
+ *
+ * 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 (including the
+ * next paragraph) 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 COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS 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.
+ *
+ */
+
+#include "nouveau_driver.h"
+#include "nouveau_context.h"
+#include "nouveau_bufferobj.h"
+#include "nouveau_fbo.h"
+
+#include "main/dd.h"
+#include "main/framebuffer.h"
+#include "main/light.h"
+#include "main/state.h"
+#include "drivers/common/meta.h"
+#include "drivers/common/driverfuncs.h"
+#include "swrast/swrast.h"
+#include "vbo/vbo.h"
+#include "tnl/tnl.h"
+
+#define need_GL_EXT_framebuffer_object
+#define need_GL_EXT_fog_coord
+
+#include "main/remap_helper.h"
+
+static const struct dri_extension nouveau_extensions[] = {
+	{ "GL_EXT_framebuffer_object",  GL_EXT_framebuffer_object_functions },
+	{ "GL_ARB_multitexture",	NULL },
+	{ "GL_EXT_texture_lod_bias",	NULL },
+	{ "GL_SGIS_generate_mipmap",	NULL },
+	{ "GL_ARB_texture_env_combine",	NULL },
+	{ "GL_ARB_texture_env_dot3",	NULL },
+	{ "GL_ARB_texture_env_add",	NULL },
+	{ "GL_EXT_fog_coord",		GL_EXT_fog_coord_functions },
+	{ NULL,				NULL }
+};
+
+GLboolean
+nouveau_context_create(const __GLcontextModes *visual, __DRIcontext *dri_ctx,
+		       void *share_ctx)
+{
+	__DRIscreen *dri_screen = dri_ctx->driScreenPriv;
+	struct nouveau_screen *screen = dri_screen->private;
+	struct nouveau_context *nctx;
+	GLcontext *ctx;
+
+	ctx = screen->driver->context_create(screen, visual, share_ctx);
+	if (!ctx)
+		return GL_FALSE;
+
+	nctx = to_nouveau_context(ctx);
+	nctx->dri_context = dri_ctx;
+	dri_ctx->driverPrivate = ctx;
+
+	return GL_TRUE;
+}
+
+GLboolean
+nouveau_context_init(GLcontext *ctx, struct nouveau_screen *screen,
+		     const GLvisual *visual, GLcontext *share_ctx)
+{
+	struct nouveau_context *nctx = to_nouveau_context(ctx);
+	struct dd_function_table functions;
+
+	nctx->screen = screen;
+	nctx->fallback = HWTNL;
+
+	/* Initialize the function pointers */
+	_mesa_init_driver_functions(&functions);
+	nouveau_driver_functions_init(&functions);
+	nouveau_bufferobj_functions_init(&functions);
+	nouveau_texture_functions_init(&functions);
+	nouveau_fbo_functions_init(&functions);
+
+	/* Initialize the mesa context */
+	_mesa_initialize_context(ctx, visual, share_ctx, &functions, NULL);
+
+	nouveau_state_init(ctx);
+	nouveau_bo_state_init(ctx);
+	_mesa_meta_init(ctx);
+	_swrast_CreateContext(ctx);
+	_vbo_CreateContext(ctx);
+	_tnl_CreateContext(ctx);
+	nouveau_span_functions_init(ctx);
+	_mesa_allow_light_in_model(ctx, GL_FALSE);
+
+	/* Enable any supported extensions */
+	driInitExtensions(ctx, nouveau_extensions, GL_TRUE);
+
+	return GL_TRUE;
+}
+
+void
+nouveau_context_destroy(__DRIcontext *dri_ctx)
+{
+	struct nouveau_context *nctx = dri_ctx->driverPrivate;
+	GLcontext *ctx = &nctx->base;
+
+	if (nctx->screen->context == nctx)
+		nctx->screen->context = NULL;
+
+	_tnl_DestroyContext(ctx);
+	_vbo_DestroyContext(ctx);
+	_swrast_DestroyContext(ctx);
+	_mesa_meta_free(ctx);
+	nouveau_bo_state_destroy(ctx);
+	context_drv(ctx)->context_destroy(ctx);
+}
+
+static void
+nouveau_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable,
+			     unsigned int *stamp)
+{
+	struct nouveau_context *nctx = context->driverPrivate;
+	GLcontext *ctx = &nctx->base;
+	__DRIscreen *screen = context->driScreenPriv;
+	struct gl_framebuffer *fb = drawable->driverPrivate;
+	unsigned int attachments[10];
+	__DRIbuffer *buffers = NULL;
+	int i = 0, count, ret;
+
+	attachments[i++] = __DRI_BUFFER_FRONT_LEFT;
+	if (fb->Visual.doubleBufferMode)
+		attachments[i++] = __DRI_BUFFER_BACK_LEFT;
+	if (fb->Visual.haveDepthBuffer && fb->Visual.haveStencilBuffer)
+		attachments[i++] = __DRI_BUFFER_DEPTH_STENCIL;
+	else if (fb->Visual.haveDepthBuffer)
+		attachments[i++] = __DRI_BUFFER_DEPTH;
+	else if (fb->Visual.haveStencilBuffer)
+		attachments[i++] = __DRI_BUFFER_STENCIL;
+
+	buffers = (*screen->dri2.loader->getBuffers)(drawable,
+						     &drawable->w, &drawable->h,
+						     attachments, i, &count,
+						     drawable->loaderPrivate);
+	if (buffers == NULL)
+		return;
+
+	for (i = 0; i < count; i++) {
+		struct gl_renderbuffer *rb;
+		struct nouveau_surface *s;
+		uint32_t old_handle;
+		int index;
+
+		switch (buffers[i].attachment) {
+		case __DRI_BUFFER_FRONT_LEFT:
+		case __DRI_BUFFER_FAKE_FRONT_LEFT:
+			index = BUFFER_FRONT_LEFT;
+			break;
+		case __DRI_BUFFER_BACK_LEFT:
+			index = BUFFER_BACK_LEFT;
+			break;
+		case __DRI_BUFFER_DEPTH:
+		case __DRI_BUFFER_DEPTH_STENCIL:
+			index = BUFFER_DEPTH;
+			break;
+		case __DRI_BUFFER_STENCIL:
+			index = BUFFER_STENCIL;
+			break;
+		default:
+			assert(0);
+		}
+
+		rb = fb->Attachment[index].Renderbuffer;
+		s = &to_nouveau_renderbuffer(rb)->surface;
+
+		s->width = drawable->w;
+		s->height = drawable->h;
+		s->pitch = buffers[i].pitch;
+		s->cpp = buffers[i].cpp;
+
+		/* Don't bother to reopen the bo if it happens to be
+		 * the same. */
+		if (s->bo) {
+			ret = nouveau_bo_handle_get(s->bo, &old_handle);
+			assert(!ret);
+		}
+
+		if (!s->bo || old_handle != buffers[i].name) {
+			nouveau_bo_ref(NULL, &s->bo);
+			ret = nouveau_bo_handle_ref(context_dev(ctx),
+						    buffers[i].name, &s->bo);
+			assert(!ret);
+
+			context_dirty(ctx, FRAMEBUFFER);
+		}
+	}
+
+	_mesa_resize_framebuffer(ctx, fb, drawable->w, drawable->h);
+}
+
+GLboolean
+nouveau_context_make_current(__DRIcontext *dri_ctx, __DRIdrawable *dri_draw,
+			     __DRIdrawable *dri_read)
+{
+	if (dri_ctx) {
+		struct nouveau_context *nctx = dri_ctx->driverPrivate;
+		GLcontext *ctx = &nctx->base;
+
+		if (nctx->screen->context != nctx) {
+			nctx->screen->context = nctx;
+			BITSET_ONES(nctx->dirty);
+		}
+
+		/* Ask the X server for new renderbuffers. */
+		nouveau_update_renderbuffers(dri_ctx, dri_draw,
+					     &nctx->drawable.d_stamp);
+		if (dri_draw != dri_read)
+			nouveau_update_renderbuffers(dri_ctx, dri_read,
+						     &nctx->drawable.r_stamp);
+
+		/* Pass it down to mesa. */
+		_mesa_make_current(ctx, dri_draw->driverPrivate,
+				   dri_read->driverPrivate);
+		_mesa_update_state(ctx);
+
+		FIRE_RING(context_chan(ctx));
+
+	} else {
+		_mesa_make_current(NULL, NULL, NULL);
+	}
+
+	return GL_TRUE;
+}
+
+GLboolean
+nouveau_context_unbind(__DRIcontext *dri_ctx)
+{
+	return GL_TRUE;
+}
+
+void
+nouveau_fallback(GLcontext *ctx, enum nouveau_fallback mode)
+{
+	struct nouveau_context *nctx = to_nouveau_context(ctx);
+
+	nctx->fallback = MAX2(HWTNL, mode);
+
+	if (mode < SWRAST)
+		nouveau_state_emit(ctx);
+	else
+		FIRE_RING(context_chan(ctx));
+}
+
+void
+nouveau_validate_framebuffer(GLcontext *ctx)
+{
+	struct nouveau_context *nctx = to_nouveau_context(ctx);
+
+	/* Someone's planning to draw something really soon. */
+	nctx->drawable.dirty = GL_TRUE;
+}