nv04.

1 files changed, 216 insertions, 0 deletions

diff --git a/src/gallium/drivers/nv04/nv04_screen.c b/src/gallium/drivers/nv04/nv04_screen.c
new file mode 100644
index 00000000000..9f34117b8c8
--- /dev/null
+++ b/src/gallium/drivers/nv04/nv04_screen.c
@@ -0,0 +1,216 @@
+#include "pipe/p_screen.h"
+#include "pipe/p_util.h"
+
+#include "nv04_context.h"
+#include "nv04_screen.h"
+
+static const char *
+nv04_screen_get_name(struct pipe_screen *screen)
+{
+	struct nv04_screen *nv04screen = nv04_screen(screen);
+	struct nouveau_device *dev = nv04screen->nvws->channel->device;
+	static char buffer[128];
+
+	snprintf(buffer, sizeof(buffer), "NV%02X", dev->chipset);
+	return buffer;
+}
+
+static const char *
+nv04_screen_get_vendor(struct pipe_screen *screen)
+{
+	return "nouveau";
+}
+
+static int
+nv04_screen_get_param(struct pipe_screen *screen, int param)
+{
+	switch (param) {
+	case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
+		return 1;
+	case PIPE_CAP_NPOT_TEXTURES:
+		return 0;
+	case PIPE_CAP_TWO_SIDED_STENCIL:
+		return 0;
+	case PIPE_CAP_GLSL:
+		return 0;
+	case PIPE_CAP_S3TC:
+		return 0;
+	case PIPE_CAP_ANISOTROPIC_FILTER:
+		return 0;
+	case PIPE_CAP_POINT_SPRITE:
+		return 0;
+	case PIPE_CAP_MAX_RENDER_TARGETS:
+		return 1;
+	case PIPE_CAP_OCCLUSION_QUERY:
+		return 0;
+	case PIPE_CAP_TEXTURE_SHADOW_MAP:
+		return 0;
+	case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
+		return 10;
+	case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
+		return 0;
+	case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
+		return 0;
+	default:
+		NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
+		return 0;
+	}
+}
+
+static float
+nv04_screen_get_paramf(struct pipe_screen *screen, int param)
+{
+	switch (param) {
+	case PIPE_CAP_MAX_LINE_WIDTH:
+	case PIPE_CAP_MAX_LINE_WIDTH_AA:
+		return 0.0;
+	case PIPE_CAP_MAX_POINT_WIDTH:
+	case PIPE_CAP_MAX_POINT_WIDTH_AA:
+		return 0.0;
+	case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
+		return 0.0;
+	case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
+		return 0.0;
+	default:
+		NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
+		return 0.0;
+	}
+}
+
+static boolean
+nv04_screen_is_format_supported(struct pipe_screen *screen,
+				enum pipe_format format, uint type)
+{
+	switch (type) {
+	case PIPE_SURFACE:
+		switch (format) {
+		case PIPE_FORMAT_A8R8G8B8_UNORM:
+		case PIPE_FORMAT_R5G6B5_UNORM: 
+		case PIPE_FORMAT_Z16_UNORM:
+			return TRUE;
+		default:
+			break;
+		}
+		break;
+	case PIPE_TEXTURE:
+		switch (format) {
+		case PIPE_FORMAT_A8R8G8B8_UNORM:
+		case PIPE_FORMAT_X8R8G8B8_UNORM:
+		case PIPE_FORMAT_A1R5G5B5_UNORM:
+		case PIPE_FORMAT_R5G6B5_UNORM: 
+		case PIPE_FORMAT_L8_UNORM:
+		case PIPE_FORMAT_A8_UNORM:
+			return TRUE;
+		default:
+			break;
+		}
+		break;
+	default:
+		assert(0);
+	};
+
+	return FALSE;
+}
+
+static void *
+nv04_surface_map(struct pipe_screen *screen, struct pipe_surface *surface,
+		 unsigned flags )
+{
+	struct pipe_winsys *ws = screen->winsys;
+	void *map;
+
+	map = ws->buffer_map(ws, surface->buffer, flags);
+	if (!map)
+		return NULL;
+
+	return map + surface->offset;
+}
+
+static void
+nv04_surface_unmap(struct pipe_screen *screen, struct pipe_surface *surface)
+{
+	struct pipe_winsys *ws = screen->winsys;
+
+	ws->buffer_unmap(ws, surface->buffer);
+}
+
+static void
+nv04_screen_destroy(struct pipe_screen *pscreen)
+{
+	struct nv04_screen *screen = nv04_screen(pscreen);
+	struct nouveau_winsys *nvws = screen->nvws;
+
+	nvws->notifier_free(&screen->sync);
+	nvws->grobj_free(&screen->fahrenheit);
+
+	FREE(pscreen);
+}
+
+struct pipe_screen *
+nv04_screen_create(struct pipe_winsys *ws, struct nouveau_winsys *nvws)
+{
+	struct nv04_screen *screen = CALLOC_STRUCT(nv04_screen);
+	unsigned fahrenheit_class = 0, sub3d_class = 0;
+	unsigned chipset = nvws->channel->device->chipset;
+	int ret;
+
+	if (!screen)
+		return NULL;
+	screen->nvws = nvws;
+
+	if (chipset>=0x20) {
+		fahrenheit_class = 0;
+		sub3d_class = 0;
+	} else if (chipset>=0x10) {
+		fahrenheit_class = NV10_DX5_TEXTURED_TRIANGLE;
+		sub3d_class = NV10_CONTEXT_SURFACES_3D;
+	} else {
+		fahrenheit_class=NV04_DX5_TEXTURED_TRIANGLE;
+		sub3d_class = NV04_CONTEXT_SURFACES_3D;
+	}
+
+	if (!fahrenheit_class) {
+		NOUVEAU_ERR("Unknown nv04 chipset: nv%02x\n", chipset);
+		return NULL;
+	}
+
+	/* 3D object */
+	ret = nvws->grobj_alloc(nvws, fahrenheit_class, &screen->fahrenheit);
+	if (ret) {
+		NOUVEAU_ERR("Error creating 3D object: %d\n", ret);
+		return NULL;
+	}
+
+	/* 3D surface object */
+	ret = nvws->grobj_alloc(nvws, sub3d_class, &screen->context_surfaces_3d);
+	if (ret) {
+		NOUVEAU_ERR("Error creating 3D surface object: %d\n", ret);
+		return NULL;
+	}
+
+	/* Notifier for sync purposes */
+	ret = nvws->notifier_alloc(nvws, 1, &screen->sync);
+	if (ret) {
+		NOUVEAU_ERR("Error creating notifier object: %d\n", ret);
+		nv04_screen_destroy(&screen->pipe);
+		return NULL;
+	}
+
+	screen->pipe.winsys = ws;
+	screen->pipe.destroy = nv04_screen_destroy;
+
+	screen->pipe.get_name = nv04_screen_get_name;
+	screen->pipe.get_vendor = nv04_screen_get_vendor;
+	screen->pipe.get_param = nv04_screen_get_param;
+	screen->pipe.get_paramf = nv04_screen_get_paramf;
+
+	screen->pipe.is_format_supported = nv04_screen_is_format_supported;
+
+	screen->pipe.surface_map = nv04_surface_map;
+	screen->pipe.surface_unmap = nv04_surface_unmap;
+
+	nv04_screen_init_miptree_functions(&screen->pipe);
+
+	return &screen->pipe;
+}
+