Import a classic DRI driver for nv0x-nv2x.

1 files changed, 118 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/nouveau/nv04_context.c b/src/mesa/drivers/dri/nouveau/nv04_context.c
new file mode 100644
index 00000000000..5548286a73e
--- /dev/null
+++ b/src/mesa/drivers/dri/nouveau/nv04_context.c
@@ -0,0 +1,118 @@
+/*
+ * 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 "nouveau_class.h"
+#include "nv04_driver.h"
+
+struct nouveau_grobj *
+nv04_context_engine(GLcontext *ctx)
+{
+	struct nv04_context *nctx = to_nv04_context(ctx);
+	struct nouveau_screen *screen = nctx->base.screen;
+	struct nouveau_grobj *fahrenheit;
+
+	if (ctx->Texture.Unit[0].EnvMode == GL_COMBINE ||
+	    ctx->Texture.Unit[0].EnvMode == GL_BLEND ||
+	    ctx->Texture.Unit[1]._ReallyEnabled ||
+	    ctx->Stencil.Enabled)
+		fahrenheit = screen->eng3dm;
+	else
+		fahrenheit = screen->eng3d;
+
+	if (fahrenheit != nctx->eng3d) {
+		nctx->eng3d = fahrenheit;
+
+		if (nv04_mtex_engine(fahrenheit)) {
+			context_dirty_i(ctx, TEX_ENV, 0);
+			context_dirty_i(ctx, TEX_ENV, 1);
+			context_dirty_i(ctx, TEX_OBJ, 0);
+			context_dirty_i(ctx, TEX_OBJ, 1);
+			context_dirty(ctx, CONTROL);
+			context_dirty(ctx, BLEND);
+		} else {
+			context_bctx_i(ctx, TEXTURE, 1);
+			context_dirty_i(ctx, TEX_ENV, 0);
+			context_dirty_i(ctx, TEX_OBJ, 0);
+			context_dirty(ctx, CONTROL);
+			context_dirty(ctx, BLEND);
+		}
+	}
+
+	return fahrenheit;
+}
+
+static void
+init_dummy_texture(GLcontext *ctx)
+{
+	struct nouveau_surface *s = &to_nv04_context(ctx)->dummy_texture;
+
+	nouveau_surface_alloc(ctx, s, SWIZZLED,
+			      NOUVEAU_BO_MAP | NOUVEAU_BO_VRAM,
+			      MESA_FORMAT_ARGB8888, 1, 1);
+
+	nouveau_bo_map(s->bo, NOUVEAU_BO_WR);
+	*(uint32_t *)s->bo->map = 0xffffffff;
+	nouveau_bo_unmap(s->bo);
+}
+
+GLcontext *
+nv04_context_create(struct nouveau_screen *screen, const GLvisual *visual,
+		    GLcontext *share_ctx)
+{
+	struct nv04_context *nctx;
+	GLcontext *ctx;
+
+	nctx = CALLOC_STRUCT(nv04_context);
+	if (!nctx)
+		return NULL;
+
+	ctx = &nctx->base.base;
+	nouveau_context_init(ctx, screen, visual, share_ctx);
+
+	ctx->Const.MaxTextureCoordUnits = NV04_TEXTURE_UNITS;
+	ctx->Const.MaxTextureImageUnits = NV04_TEXTURE_UNITS;
+	ctx->Const.MaxTextureUnits = NV04_TEXTURE_UNITS;
+	ctx->Const.MaxTextureMaxAnisotropy = 2;
+	ctx->Const.MaxTextureLodBias = 15;
+
+	init_dummy_texture(ctx);
+	nv04_render_init(ctx);
+
+	return ctx;
+}
+
+void
+nv04_context_destroy(GLcontext *ctx)
+{
+	nv04_render_destroy(ctx);
+	nouveau_surface_ref(NULL, &to_nv04_context(ctx)->dummy_texture);
+
+	FREE(ctx);
+}