Import a classic DRI driver for nv0x-nv2x.

1 files changed, 140 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/nouveau/nouveau_driver.c b/src/mesa/drivers/dri/nouveau/nouveau_driver.c
new file mode 100644
index 00000000000..bf0e20ca81c
--- /dev/null
+++ b/src/mesa/drivers/dri/nouveau/nouveau_driver.c
@@ -0,0 +1,140 @@
+/*
+ * 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_fbo.h"
+#include "nouveau_util.h"
+
+#include "drivers/common/meta.h"
+
+static const GLubyte *
+nouveau_get_string(GLcontext *ctx, GLenum name)
+{
+	static char buffer[128];
+	char hardware_name[32];
+
+	switch (name) {
+		case GL_VENDOR:
+			return (GLubyte *)"Nouveau";
+
+		case GL_RENDERER:
+			sprintf(hardware_name, "nv%02X", context_chipset(ctx));
+			driGetRendererString(buffer, hardware_name, DRIVER_DATE, 0);
+
+			return (GLubyte *)buffer;
+		default:
+			return NULL;
+	}
+}
+
+static void
+nouveau_flush(GLcontext *ctx)
+{
+	struct nouveau_context *nctx = to_nouveau_context(ctx);
+	struct nouveau_channel *chan = context_chan(ctx);
+
+	FIRE_RING(chan);
+
+	if (ctx->DrawBuffer->Name == 0 &&
+	    ctx->DrawBuffer->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT) {
+		__DRIscreen *screen = nctx->screen->dri_screen;
+		__DRIdri2LoaderExtension *dri2 = screen->dri2.loader;
+		__DRIdrawable *drawable = nctx->dri_context->driDrawablePriv;
+
+		dri2->flushFrontBuffer(drawable, drawable->loaderPrivate);
+	}
+
+	nctx->drawable.dirty = GL_FALSE;
+}
+
+static void
+nouveau_finish(GLcontext *ctx)
+{
+	nouveau_flush(ctx);
+}
+
+void
+nouveau_clear(GLcontext *ctx, GLbitfield buffers)
+{
+	struct gl_framebuffer *fb = ctx->DrawBuffer;
+	int x, y, w, h;
+	int i, buf;
+
+	nouveau_validate_framebuffer(ctx);
+	get_scissors(fb, &x, &y, &w, &h);
+
+	for (i = 0; i < BUFFER_COUNT; i++) {
+		struct nouveau_surface *s;
+		unsigned mask, value;
+
+		buf = buffers & (1 << i);
+		if (!buf)
+			continue;
+
+		s = &to_nouveau_renderbuffer(
+			fb->Attachment[i].Renderbuffer->Wrapped)->surface;
+
+		if (buf & BUFFER_BITS_COLOR) {
+			mask = pack_rgba_i(s->format, ctx->Color.ColorMask[0]);
+			value = pack_rgba_f(s->format, ctx->Color.ClearColor);
+
+			if (mask)
+				context_drv(ctx)->surface_fill(
+					ctx, s, mask, value, x, y, w, h);
+
+			buffers &= ~buf;
+
+		} else if (buf & (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)) {
+			mask = pack_zs_i(s->format,
+					 (buffers & BUFFER_BIT_DEPTH &&
+					  ctx->Depth.Mask) ? ~0 : 0,
+					 (buffers & BUFFER_BIT_STENCIL &&
+					  ctx->Stencil.WriteMask[0]) ? ~0 : 0);
+			value = pack_zs_f(s->format,
+					  ctx->Depth.Clear,
+					  ctx->Stencil.Clear);
+
+			if (mask)
+				context_drv(ctx)->surface_fill(
+					ctx, s, mask, value, x, y, w, h);
+
+			buffers &= ~(BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL);
+		}
+	}
+
+	if (buffers)
+		_mesa_meta_Clear(ctx, buffers);
+}
+
+void
+nouveau_driver_functions_init(struct dd_function_table *functions)
+{
+	functions->GetString = nouveau_get_string;
+	functions->Flush = nouveau_flush;
+	functions->Finish = nouveau_finish;
+	functions->Clear = nouveau_clear;
+}